Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
SPECIFICATION
TENSIONING MECHANISM
FIELD OF THE INVENTION
The present invention relates to a tensioning mechanism, particularly to a
tensioning mechanism of a
portable packaging machine.
BACKGROUND OF THE INVENTION
A portable packaging machine is a portable device that can be easily carried
to the relevant work point
for bundling items. The tightening mechanism is used to tighten the packing
strip after wrapping around the
item, and its actuator adopts a tightening wheel. The previous portable
packaging machine adopts a structure
with a handle, by operating the handle, the portable packaging machine
switches from a tensioned state to a
non-tensioned state (as a working state of placing or removing the packaging
strip), and the operation is not
automatic enough.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a tensioning mechanism, which
is suitable for being
mounted in a portable packaging machine and realizes the handleless operation
of the portable packaging
machine from a tensioned state to a non-tensioned state. To achieve this
object, the present invention adopts
the following technical solutions:
A tensioning mechanism, which is installed in a portable packaging machine
provided with a tensioning
wheel and a tensioning wheel driving electric motor; wherein a gear connecting
mechanism is arranged
between the driving electric motor and the tensioning wheel, and the
tensioning mechanism is also provided
with a rotation direction control and rotation angle keeping mechanism, a non-
return mechanism and a
rocker arm, the rotation direction control and rotation angle keeping
mechanism being connected to the
non-return mechanism and the rocker arm, and the rocker arm being provided
with a toothed structure
matching the tensioning wheel, by means of matching the rotation direction
control and rotation angle
keeping mechanism and a second reset mechanism, the rocker arm is driven to
rotate, and the angle after the
rocker arm rotates in place is kept, such that the toothed structure and the
tensioning wheel are in a tensioned
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matching state or a loosened state; and by means of matching the rotation
direction control and rotation angle
keeping mechanism and a first reset mechanism, the non-return mechanism is
driven to be in a non-return
matching state or released from the non-return matching state, the gear
connecting mechanism is connected
to the non-return mechanism, and when the non-return mechanism is in the non-
return matching state, the
tensioning wheel can only be driven to rotate in a single direction and cannot
rotate reversely, and the single
direction is the direction of rotation to tension a packaging strip.
The rotation direction control and rotation angle keeping mechanism adopts a
steering engine.
Further, the non-return mechanism comprises a non-return mechanism connecting
gear, a ratchet
coaxially connected with the non-return mechanism connecting gear and a pawl
matching the ratchet, the
pawl can be driven by a first connecting gear by means of matching a first
connecting structure and a first
connecting gear, and the rocker arm can be driven by a second connecting gear
by means of matching a
second connecting structure and a second connecting gear, and the rotation
direction control and rotation
angle keeping mechanism drives the first connecting gear and the second
connecting gear.
Further, the first connecting gear and the second connecting gear are in mesh
connection with rotate
synchronously, the second connecting gear is larger than the first connecting
gear and has a lower rotational
speed than the first connecting gear.
Further, the second connecting structure comprises a driving part driven by
the second connecting gear
and a rotating connecting part, the rotating connecting part is provided with
an acted part matching the active
part, and the rotating connecting part is also provided with a structure
connected to the rocker arm. The
rotating connecting part is further provided with a part connected to the
second reset mechanism.
Further, the rotating connecting part is in the shape of a ring, and the
rotation center line thereof is
collinear with the rotation center line of the tensioning wheel, and the gear
connecting structure is provided
with a planetary gear reduction mechanism, the ring-shaped rotating connecting
piece is mounted on the
planetary gear reduction mechanism through a bearing.
Further, the pawl arm is mounted on the shaft of the second connecting gear
and can rotate relative to
the shaft of the second connecting gear, and the active part and the shaft of
the second connecting gear are
fixedly connected or in a whole.
Further, the gear connecting mechanism comprises a planetary gear reduction
mechanism and a
connecting gear between the driving electric motor and the planetary gear
reduction mechanism. The
planetary gear reduction mechanism can be provided with one or more stages.
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Further, a preferred embodiment is: the steering engine and the tensioning
wheel driving electric motor
are arranged in parallel, the steering engine is located above the side of the
tensioning wheel and the
tensioning wheel driving electric motor; the steering engine is connected with
the first connecting gear
through the driving gear, and the first connecting gear is in mesh connection
with the second connecting gear,
and the second connecting gear is larger than the first connecting gear and
has a lower rotational speed than
the first connecting gear;
the non-return mechanism comprises a non-return mechanism connecting gear, a
ratchet coaxial ly
connected with the non-return mechanism connecting gear and a pawl matching
the ratchet, the pawl is
connected with the first connecting gear through the first connecting
structure, and the rocker arm is
connected with the second connecting gear through the second connecting
structure;
the second connecting structure comprises a driving part driven by the second
connecting gear and a
rotating connecting part, the rotating connecting part is provided with an
acted part matching the active part,
and the rotating connecting part is also provided with a structure connected
to the rocker arm;
the rotating connecting part is in the shape of a ring, and the rotation
center line thereof is collinear with
the rotation center line of the tensioning wheel, and the gear connecting
structure is provided with a
planetary gear reduction mechanism, the ring-shaped rotating connecting piece
is mounted on the planetary
gear reduction mechanism through a bearing, the tensioning wheel is provided
with a ring gear, and the
output gear coaxial with the sun gear of the planetary gear reduction
mechanism is connected with the ring
gear through a connecting gear;
the non-return mechanism is arranged in front of the planetary gear reduction
mechanism;
the non-return mechanism connecting gear is mounted on the shaft of the
ratchet through a one-way
bearing, when the tensioning mechanism is tightening, the non-return mechanism
is in a non-return matching
state, in the corresponding tensioning rotation direction of the tensioning
wheel, the one-way bearing allows
the non-return mechanism connecting gear to rotate relative to the ratchet,
and when the tensioning wheel
driving electric motor stops rotating, the non-return mechanism connecting
gear is prohibited from rotating
relative to the ratchet in an opposite direction, and both must rotate
together.
Furthermore, the ring gear is coaxially arranged with the sun gear of the
planetary gear reduction
mechanism; the tensioning wheel and the planetary gear reduction mechanism are
arranged close to each
other in the axial direction, so as to further reduce the connecting parts and
reduce the size of the machine
and facilitate the use of the portable packaging machine.
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Further, the first gear and the sun gear of the planetary gear reduction
mechanism are coaxially
connected together to further simplify the connecting structure.
Alternatively, the first gear and the sun gear
can also be connected via an intermediate gear instead of connected coaxially.
Further, the planetary gear carrier of the planetary gear reduction mechanism
and the planetary gear are
arranged on the side of the mounting plate facing the driving electric motor,
the rotating shaft of the
planetary gear carrier of the planetary gear reduction mechanism is connected
with the output gear, and the
output gear is on the other side of the mounting plate, and the ring gear is
on the periphery thereof. A
plurality of connecting gears surrounding the output gear are arranged between
the output gear and the ring
gear, and the connecting gear axis is fixed on the mounting plate.
Further, the connection between the connecting gear and the output gear is a
deceleration connection.
Further, the tensioning mechanism is provided with a belt pressing mechanism,
and the belt pressing
mechanism is arranged on the rocker arm of the portable packaging machine, and
the belt pressing
mechanism comprises a first elastic mechanism and a belt pressing part, the
first elastic mechanism pushes
the belt pressing part downward, allows the belt pressing part to retract and
provides an elastic force for the
belt pressing part to return downward, and the height of the lower end of the
belt pressing part is lower than
the upper end of the toothed plate arranged at the inner bottom of the rocker
arm, which is close to the side
of the belt pressing mechanism.
Further, the belt pressing part adopts a rolling element.
Further, the portable packaging machine is provided with a packaging strip
limiting structure on the
inner side of the rocker arm.
Further, the belt pressing mechanism is provided with a rotatable mounting
block, the first elastic
mechanism and the belt pressing part are arranged in the mounting block,
through the rotation of the
mounting block, the belt pressing part is adapted to the lifting of the
packaging strip when the belt is
tightened at the vacated height, and the mounting block is connected to the
second elastic mechanism.
Further, the belt pressing mechanism is provided with a spacer and a
connecting screw, the spacer is
connected with the mounting block, and the connecting screw connects the
mounting block with the rocker
arm.
Further, the first elastic mechanism adopts a compression spring, the mounting
block is provided with a
mounting hole inside, the belt pressing part adopts a steel ball, the
compression spring and the steel ball are
arranged in the mounting hole, and the lower end orifice of the mounting hole
is smaller than the diameter of
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the steel ball.
Further, the second elastic mechanism adopts a torsion spring, and the torsion
spring is sleeved between
the spacers and connected between the rocker arm and the mounting block.
Further, the mounting block is provided with a connecting hole, the spacer is
provided with a part
inserted into the connecting hole, and the connecting screw passes through the
connecting hole and the
spacer to connect with the rocker arm; the mounting block is provided with a
hole orthogonally passing
through the connecting hole, the lower part of the connecting hole is used as
a mounting hole, the belt
pressing part adopts a steel ball, the compression spring and the steel ball
are arranged in the mounting hole,
the lower end orifice of the mounting hole is smaller than the diameter of the
steel ball, and the inserting part
1.0 of the spacer serves as a supporting part of the compression spring.
Further, the spacer is provided with a portion inserted into the connecting
hole and serves as a rotation axis
of the mounting block.
Further, a concave area is provided on the outer side of the rocker arm, and
the mounting block is
correspondingly disposed in the concave area.
Due to the adoption of the technical solutions of the present invention, the
present invention is compact
in structure and is suitable for being applied to a portable packaging
machine, and realizes the handleless
operation of the portable packaging machine from a tensioned state to a non-
tensioned state without
operating a handle. Furthermore, for the tensioning mechanism that uses the
exclusive driving electric motor
of the tensioning wheel, the worm gear structure is avoided, and meanwhile,
the compact assembly
relationship of adjacent and concentric inclusion can be realized, and the
volume is reduced, such that the
planetary gear is suitable for use in the limited and applicable space of the
portable packaging machine and
the non-return mechanism is configured, which is small in size and is portable
for users conveniently, and
has low energy consumption.
The present invention will be further described in detail below in conjunction
with the accompanying
drawings and specific embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic perspective view of an embodiment of the present
invention.
FIG. 2 is a schematic perspective view of another angle of an embodiment of
the present invention.
FIG. 3 is a front view of an embodiment of the present invention with the
motor mounting base hidden.
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FIG. 4 is an exploded view of a non-return mechanism and surrounding
structures thereof.
FIG. 5 is an exploded view of a non-return mechanism and a planetary gear
mechanism.
FIG. 6 is an exploded view of an embodiment of a portable packaging machine of
the present invention.
FIG. 7 is a schematic diagram of an embodiment of a handleless portable
packaging machine applying a
belt pressing mechanism of the present invention.
FIG. 8 is a front view of a swing arm provided with a belt pressing mechanism
in the embodiment
shown in FIG. 7.
FIG. 9 is a perspective view of a swing arm provided with a belt pressing
mechanism in the
embodiment shown in FIG. 7.
FIG. 10 is an exploded view of the structure shown in FIG. 9.
DETIALED DESCRIPTION
Referring to FIGS. 1 to 6, the present invention provides a tensioning
mechanism, which is installed in a
portable packaging machine. The portable packaging machine is provided with a
tensioning wheel 100 and a
tensioning wheel driving electric motor 200. The drive motor 200 is mounted on
the mounting plate 203
thereof, and the mounting plate 203 is fixedly connected to a mounting base
400. A gear connecting
mechanism is arranged between the driving electric motor 200 and the
tensioning wheel 100, the gear
connecting mechanism comprises a planetary gear reduction mechanism and a
connecting gear between the
driving electric motor 200 and the planetary gear reduction mechanism
The tensioning mechanism is also provided with a rotation direction control
and rotation angle keeping
mechanism, a non-return mechanism and a rocker arm 300, the rotation direction
control and rotation angle
keeping mechanism can adopts a steering engine 6. The steering engine 6 is
connected with the non-return
mechanism and the rocker arm 300, the rocker arm 300 is rotatably mounted on
the mounting base 400 and
is at the periphery of the tensioning wheel 100; the rocker arm 300 is
provided with a toothed structure 301
matching the tensioning wheel 100, by means of matching the steering engine 6
and a second reset
mechanism, the rocker arm 300 is driven to rotate, and the angle after the
rocker arm 300 rotates in place is
kept, wherein the second reset mechanism adopts a compression spring 62, such
that the toothed structure
301 and the tensioning wheel 100 are in a tensioned matching state or a
loosened state; and by means of
matching the steering engine 6 and a first reset mechanism, the non-return
mechanism is driven to be in a
non-return matching state or released from the non-return matching state,
wherein the first reset mechanism
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adopts a compression spring 61, the gear connecting mechanism is connected to
the non-return mechanism,
and when the non-return mechanism is in the non-return matching state, the
tensioning wheel 100 can only
be driven to rotate in a single direction and cannot rotate reversely, and the
single direction is the direction of
rotation to tension a packaging strip.
The non-return mechanism comprises a non-return mechanism connecting gear 21,
a ratchet 22
coaxially connected with the non-return mechanism connecting gear 21 and a
pawl 23 matching the ratchet,
the pawl 23 can be driven by a first connecting gear by means of matching a
first connecting structure and a
first connecting gear 71, and the rocker arm 300 can be driven by a second
connecting gear by means of
matching a second connecting structure and a second connecting gear 72.
The steering engine 6 and the tensioning wheel driving electric motor 200 are
arranged in parallel, the
steering engine 6 is located above the side of the tensioning wheel 100 and
the tensioning wheel driving
electric motor 200; the steering engine 6 is connected with the first
connecting gear 71 through the driving
gear 73, and the first connecting gear 71 is in mesh connection with the
second connecting gear 72. The axes
of the driving gear 73, the first connecting gear 71 and second connecting
gear 72 are parallel to the axis of
tensioning wheel, the pawl arm 230 is arranged on the shaft 720 of the second
connecting gear 72, and can
rotate relative to the shaft 720 of second connecting gear 72, the first
connecting gear 71 and second
connecting gear 72 rotate synchronously. The second connecting gear 72 is
larger than the first connecting
gear 71 and has a lower rotational speed than the first connecting gear 71,
such that the center of gravity of
the portable packaging machine is more stable, the action of pawl 23 is more
sensitive and the rocker arm
300 has a suitable rotation angle; additionally, the first connecting gear 71
is also larger than the driving gear,
and is in a deceleration matching relationship.
The first connecting structure comprises a first cam 711 arranged on the first
connecting gear shaft 710
and a second cam 231 arranged on the pawl arm 230, the first cam 711 matches
with the second cam 231,
and the pawl arm 230 is connected with a reset spring 61. The positive
rotation of the steering engine 6 plays
a role in driving the pawl to disengage from the ratchet through the matching
of the cam. The reset spring 61
is not only used to drive the pawl 23 to reset and form a meshed matching with
the ratchet 22, but also to
make the second cam 231 lean towards the first cam 711.
The two ends of the shaft 220 of the ratchet 22 are respectively mounted on
the mounting plate 203 and
the mounting base 400 through the bearings 25. The connecting gear 21 is
mounted on the shaft of the
ratchet 22 through a one-way bearing 27, and the direction of the one-way
bearing 27 is as follows: when the
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tensioning mechanism is tightening, the connecting gear 21 is allowed to
rotate relative to the ratchet 22
driven by the first gear 1, and when the tensioning wheel driving electric
motor 200 stops rotating, the
connecting gear 21 is prohibited from rotating relative to the ratchet in the
opposite direction and both must
rotate together.
The second connecting structure comprises a driving part 721 driven by the
second connecting gear and
a rotating connecting part 8, the rotating connecting part 8 is provided with
an acted part 81 matching the
active part 721, and the rotating connecting part is also provided with a
structure 82 connected to the rocker
arm and a part 83 connected to the second reset mechanism. The driving part
721 and the shaft 720 of the
second connecting gear 72 are fixedly connected or integrated as a whole, and
the forward rotation of the
steering engine, through the action of the driving part 721 on the acted part
81, makes the rotating connecting
part 8 to rotate, and by means of the structure 82 connected to the rocker
arm, the rotation makes the rocker
arm 300 to move an angle toward the loosening direction, and the rocker arm
300 can be provided with a
bayonet 302 that matches the structure 82. When the steering engine rotates
reversely, the driving part 721
rotates in the opposite direction to give way, and through the action of the
compression spring 62, the
rotating connecting part 8 rotates in the opposite direction, and the rocker
arm 300 generates an angle
towards the tightening direction, and the toothed structure 301 and tensioning
wheel 100 are in a tensioned
matching state.
The rotating connecting part 8 is in the shape of a ring, and the rotation
center line thereof is collinear
with the rotation center line of the tensioning wheel 100, and the ring-shaped
rotating connecting part 8 is
mounted on the mounting plate 500 of the planetary gear reduction mechanism
through the bearing. Since
the steering engine 6 is located obliquely above the tensioning wheel 100, and
the driving gear 73, the first
connecting gear 71 and the second connecting gear 72 are parallel to the axis
of the tensioning wheel, the
shaft 720 of the second connecting gear 72 is arranged in parallel above the
ring-shaped rotating connecting
part 8, such that the driving part 721 utilizes the feature that its rotating
diameter is smaller than that of the
ring-shaped rotating connecting part 8 above the ring-shaped rotating
connecting part 8, the rocker arm can
rotate a smaller angle, improving the working speed and the precision of the
machine
The tensioning wheel 100 is provided with a ring gear 101, and the output gear
4 coaxial with the sun
gear 31 of the planetary gear reduction mechanism is connected with the ring
gear 101 through a connecting
gear 5; the ring gear 101 is set concentrically with the sun gear 31 of the
planetary gear reduction mechanism,
and their rotation centers are on the same axis; the tensioning wheel 100 and
the planetary gear reduction
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mechanism are arranged close to each other in the axial direction.
The non-return mechanism is arranged in front of the planetary gear reduction
mechanism, and the
driving gear 202 is arranged on the output shaft 201 of the driving electric
motor 200, and the driving gear
202 is in mesh connection with a first gear 1 in a deceleration connection
relationship; the first gear 1 is just
in front of the planetary gear reduction mechanism, the first gear 1 is
connected with the planetary gear
reduction mechanism, and the first gear 1 is also in transmission connection
with the non-return mechanism
(mesh connection with the connecting gear 21).
The shafts of the first gear 1 and the sun gear 31 of the planetary gear
reduction mechanism are the
same shaft or integrated as whole, and the shaft is mounted on the mounting
base 400 through the bearing 11.
The present invention also provides an embodiment of a reduction mechanism
with a simple structure
and a small volume for easy assembly. The planetary gear reduction mechanism
comprises the sun gear 31,
three planetary gears 32, a planetary gear carrier 33 and an annulus 34. The
annulus 34 is arranged on the
mounting plate 500, the mounting plate 500 is fixed on the mounting base 400,
wherein the gear shafts of the
three planetary gears 32 are mounted on the planetary gear carrier 33, and the
rotating shaft 35 of the
planetary gear carrier 33 passes through the mounting hole on the mounting
plate 500 and is rotatably
mounted on the mounting plate 500. The planetary gear carrier 33 and the
planetary gear 32 are arranged on
the side of the mounting plate 500 facing the driving electric motor 200, the
rotating shaft 35 of the planetary
gear carrier 33 of the planetary gear reduction mechanism is connected with
the output gear 4, and the output
gear 4 is on the other side of the mounting plate 500, the ring gear 101 is on
the periphery of the output gear
4, and there are multiple connecting gears 5 around the output gear 4. The
axis of the connecting gear 5 is
fixed on the mounting plate 500, and the number of connecting gears 5 is
generally three. The connection
between the connecting gear 5 and the output gear 4 is also a deceleration
connection.
The following examples refer to FIGS. 7 to 10.
The belt pressing mechanism 601 provided in this embodiment is arranged on the
rocker arm 300 of the
portable packaging machine, and the reference numeral 100 is the tensioning
wheel of the portable
packaging machine. The rocker arm 300 is bent and is arranged around the
tensioning wheel 100 on one side
of the tensioning wheel 100, and the inner bottom of the rocker arm 300 is
provided with a toothed plate 301,
after the rocker arm 300 turns to close with the tensioning wheel 100, the
toothed plate 301 matches the
tensioning wheel 100, gets the packaging strip 300 stuck, and when the
tensioning wheel 100 rotates, the
packaging strip 700 is tightened to the right (based on the placement position
of the portable packaging
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machine in FIG. 7).
The belt pressing mechanism comprises a first elastic mechanism and a belt
pressing part, the first
elastic mechanism adopts a compression spring 610, and the belt pressing part
adopts a steel ball 601, which
is convenient for installation and has a small frictional resistance to the
packaging strip 700; the compression
spring 610 pushes the steel ball 601 downward, and allows the steel ball 601
to retract and provides an
elastic force for the steel ball 601 to return downward, and the height of the
lower end of the steel ball 601 is
lower than the upper end 303 of the toothed plate 301 arranged at the inner
bottom of the rocker arm, which
is close to the side of the belt pressing mechanism. When the curved rocker
arm 300 and the tensioning
wheel 100 are in an open state and the packing strip 700 is put in, the belt
pressing part (steel ball 601) can
press the packing belt 700 downward; when the rocker arm 300 is rotated in the
closing direction, the state of
the packing tape 700 can be effectively maintained and prevented from falling
out.
The portable packaging machine is provided with a packaging strip limiting
structure on the inner side
of the rocker arm, which can ensure that the position of the packaging strip
700 in the width direction is
appropriate when it is put in, and is convenient for the belt pressing part to
play the role of pressing the strip.
The packaging strip limiting structure can adopt a limiting block 605 or a
limiting plate, etc.
The belt pressing mechanism is provided with a rotatable mounting block 602,
and the rotation axis of
the mounting block 602 is orthogonal to the rotation axis of the rocker arm
300. Through this rotation, the
belt pressing part (steel ball 601) on the mounting block 602 changes in
height. Through the rotation of the
mounting block 602, the belt pressing part is adapted to the lifting of the
packing belt when the belt is
tightened at the vacated height, so that the pressing strip and the tightening
strip of the portable packaging
machine are more coordinated, which not only ensures the strip pressing
effect, but also makes the process of
tightening the belt smooth.
The mounting block 602 is provided with a mounting hole 621, the compression
spring 610 and the
steel ball 601 are provided in the mounting hole 621, and the lower end
orifice 6211 of the mounting block
621 is smaller than the diameter of the steel ball 601.
The belt pressing mechanism is provided with a spacer 603 and a connecting
screw 604, the spacer 603
has an insertion end 631, the mounting block 602 is provided with a connecting
hole 623, the insertion end
631 is inserted into the connecting hole 623, and the screw 604 is connected
to the rocker arm 300 through
the connecting hole 623 and the spacer 603. The reference numeral 304 is the
screw connecting hole on the
swing arm that is matched with the screw 604; the mounting block 602 is
provided with a hole orthogonally
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passing through the connecting hole 623, the lower part of the connecting hole
is used as a mounting hole
621, the upper hole 622 is used as a via hole for mounting the compression
spring 610 and the steel ball 601,
and can be blocked with a plug. The insertion end 631 of the spacer serves as
a rotation axis of the mounting
block 602 and as a supporting part of the compression spring 610.
The mounting block 602 is connected to the second elastic mechanism, the
second elastic mechanism
adopts a torsion spring 620, and the torsion spring 620 is sleeved between the
spacers 603 and connected
between the rocker arm 300 and the mounting block 602.
A concave area 305 is provided on the outer side of the rocker arm 300, and
the mounting block 601 is
correspondingly disposed in the concave area 305, to facilitate the
arrangement of the belt pressing part.
In this embodiment, the belt pressing mechanism is adopted, which can prevent
the packaging strip
from falling out to the outside through a certain degree of strip pressure
when the swing arm and the
tensioning wheel are closed, and when the packaging strip is stretched and the
packaging strip is lifted up,
elastic vacation is adaptive, which does not hinder the work of the tensioning
strip, and facilitates the
automatic operation of the portable packaging machine.
The description only describes the specific embodiments of the present
invention, but the structural
features of the present invention are not limited thereto. Any changes or
modifications made by those skilled
in the art within the field of the present invention shall fall within the
scope of protection of the present
invention.
It should be noted that the terms "comprising" and "having" in the description
and claims of the present
invention and the accompanying drawings, as well as any modifications thereof,
are intended to cover
non-exclusive inclusion. The terms "installed/mounted", "arranged", "set",
"connected", "sleeved" should be
construed broadly. For example, it may be a fixed connection, a detachable
connection, or an integral
structure; it may be a mechanical connection, or an electrical connection; it
may be directly connected, or
indirectly connected through an intermediary, or between two devices,
elements, or internal communication
between components. For those of ordinary skill in the art, the specific
meanings of the above terms in the
present invention can be understood according to specific situations.
It should be understood that, in the description of the present invention, the
orientation or positional
relationship indicated by the terms "one end", "another end", "outside",
"inside", "horizontal", "end",
"length", "outer end", "left", "right", etc. is based on the orientation or
positional relationship shown in the
figures, and is only for the convenience of describing the present invention
and simplifying the description,
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rather than indicating or implying that the indicated device or element must
have the particular orientation,
construction and operation in the particular orientation, therefore, it cannot
be construed as limitations of the
present invention. The terms "first", "second" are used for brevity of
description only, and do not indicate or
imply relative importance.
Furthermore, variations to the disclosed embodiments can be understood and
effected by those skilled
in the art in practicing the claims of the invention, from a study of the
drawings, the disclosure, and the
appended claims. Furthermore, in the claims, words such as "comprising",
"containing" and the like do not
exclude other elements or steps, and non-plural nouns do not exclude their
plurals.
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