阅读说明：本技术 一种用于卷材包装材料的可调式弯曲装置 (Adjustable bending device for coiled material packaging material ) 是由 黄晨露 于 2021-07-14 设计创作，主要内容包括：本发明涉及包装技术领域,且公开了一种用于卷材包装材料的可调式弯曲装置,包括控位机构,所述控位机构包括转钮；转动转钮,使转柱转动,带引起阻碍板下移,对阻碍板的位置进行调整,使包装材料在进行弯曲时,与阻碍板相接触,可直观的感知其折弯的程度,阻碍板带动内杆及随动杆下移,引起活塞二及压具下移,对阻碍板与完成固定包装材料之间的距离进行补偿,方便控制包装材料的弯曲程度,支杆带动滑块下移,滑块远离触块,使气缸控制活塞一在主管内下移,产生的气压推动活塞二进一步下移,活塞二靠近包装材料,对其进行挤压,使包装材料与阻碍板相贴,实现包装材料的自动弯曲,并且其弯曲程度可调节,操作便捷,实用性更高。(The invention relates to the technical field of packaging, and discloses an adjustable bending device for a coiled material packaging material, which comprises a position control mechanism, wherein the position control mechanism comprises a rotating button; the rotating button is rotated to enable the rotating column to rotate, the blocking plate is driven to move downwards, the position of the blocking plate is adjusted, when the packaging material is bent, the packaging material is in contact with the blocking plate, the bending degree of the packaging material can be intuitively sensed, the blocking plate drives the inner rod and the follower rod to move downwards to cause the second piston and the press to move downwards, the distance between the blocking plate and the fixed packaging material is compensated, the bending degree of the packaging material is conveniently controlled, the support rod drives the slider to move downwards, the slider is far away from the contact block, the first cylinder controls the first piston to move downwards in the main pipe, the generated air pressure pushes the second piston to further move downwards, the second piston is close to the packaging material and extrudes the packaging material, the packaging material is attached to the blocking plate, the automatic bending of the packaging material is achieved, the bending degree of the packaging material is adjustable, and the operation is convenient and high in practicability.)

1. An adjustable bending device for web packaging material, comprising a position control mechanism (2), characterized in that: accuse position mechanism (2) are including turn button (21), the both sides of turn button (21) are all rotated and are connected with cone pulley (22), the surface rotation of cone pulley (22) is connected with cone pulley two (23), the top welding of cone pulley (22) has rotary column (24), the surface card of rotary column (24) is equipped with channel (25), the joint has card post (26) in channel (25), the skin weld of card post (26) has branch (27), the outside fixedly connected with frid (28) of rotary column (24), the sliding surface of frid (28) is connected with slider (29), the top of slider (29) is equipped with touch multitouch (210).

2. An adjustable bending apparatus for web packaging material according to claim 1, wherein: the stay cord has been cup jointed in the outside of turn button (21), and the both ends of stay cord all rotate and are connected with cone pulley two (23), and cone pulley one (22) have two and the specification is the same, the size of cone pulley one (22) and the size looks adaptation of cone pulley two (23), and the bottom welding of rotary column (24) has the vaulting pole, and rotary column (24) have two and the specification is the same, is equipped with frid (28) between two rotary column (24).

3. An adjustable bending apparatus for web packaging material according to claim 1, wherein: the groove channel (25) is inverted V-shaped, the size of the groove channel is matched with that of the clamping column (26), the surface of the groove plate (28) is provided with a clamping groove, the inside of the clamping groove is clamped with a sliding block (29), the bottom of the upper groove wall of the clamping groove is provided with a contact block (210), and two ends of the sliding block (29) are fixedly connected with supporting rods (27).

4. Adjustable bending device for web packaging material according to claim 1, further comprising a press bending mechanism (3), characterized in that: the bending mechanism (3) comprises a communicating pipe (31), a main pipe (32) is welded at the top of the communicating pipe (31), a first piston (33) is connected to the inner portion of the main pipe (32) in a sliding mode, an auxiliary pipe (34) is welded at the bottom of the communicating pipe (31), a second piston (35) is connected to the inner portion of the auxiliary pipe (34) in a sliding mode, three pistons (36) are connected to the two ends of the communicating pipe (31) in a sliding mode, a rotating rod group (37) is connected to the outer side of the three pistons (36) in a rotating mode, and a follower rod (38) is movably connected to the outer side of the rotating rod group (37).

5. An adjustable bending apparatus for web packaging material according to claim 1, wherein: the outside of piston one (33) is equipped with the cylinder, the drive of cylinder is connected with touch multitouch (210) electricity, piston two (35) have two and the specification is the same, piston three (36) present and invert the T form, its horizontal pole tip has seted up the through-hole, bull stick group (37) comprise horizontal pole and down tube, its down tube card is in the through-hole of piston three (36) horizontal pole, follower rod (38) present and invert the L form, the tip of its montant has seted up the through-hole, its size and the size looks adaptation of bull stick group (37), the opening has been seted up to the inside of follower rod (38) horizontal piece.

6. An adjustable bending apparatus for web packaging material according to claim 1, wherein: the outer side of the bending mechanism (3) is provided with a shell (1), the inside of the shell (1) is provided with a pressing tool (4), the top of the pressing tool (4) is movably connected with a blocking plate (5), an inner rod (6) is welded at the bottom of the blocking plate (5), the surface of the inner rod (6) is rotatably connected with a roller (7), and the outer side of the roller (7) is provided with an outer pipe (8).

7. An adjustable bending apparatus for web packaging material according to claim 1, wherein: the circle groove has been seted up on the surface of shell (1) bottom plate, the vaulting pole joint of rotary column (24) bottom is at its circle inslot, tamp (4) and piston two (35) fixed connection, hinder board (5) and branch (27) fixed connection, the size of interior pole (6) and the size looks adaptation of follower rod (38) horizontal piece opening, gyro wheel (7) have four and the specification is the same, per two gyro wheels (7) are a set of, two gyro wheels (7) of every group all hug closely with the inner wall of outer tube (8), the inside of outer tube (8) is equipped with the spring, spring and interior pole (6) swing joint.

Technical Field

The invention relates to the technical field of packaging, in particular to an adjustable bending device for a coiled material packaging material.

Background

The packaging is one of the main processes of the product in the production and processing process, has the protection effect on the product in the product circulation process, is convenient to store and transport, and promotes the sale. The types of packaging material are varied and need to be handled according to the actual packaging requirements, wherein the web packaging material needs to be bent when it is being processed. When the current bending device is used for processing the coiled material packaging material, the bending degree of the packaging material cannot be visually perceived, the operation of workers is inconvenient, and the practicability is lower. Simultaneously, the bending degree of the coiled material packaging material is not easy to control, the manual intervention degree is too high, the operation is not convenient enough, and the actual use requirement can not be met.

Aiming at the defects of the prior art, the invention provides an adjustable bending device for a coiled material packaging material, which has the advantages of convenience in observing the bending degree, adjustability of the bending degree and convenience in operation.

Disclosure of Invention

Technical scheme (I)

In order to realize the purposes of conveniently observing the bending degree, adjusting the bending degree and conveniently operating, the invention provides the following technical scheme:

the utility model provides a bending apparatus with adjustable be used for coiled material packaging material, includes accuse position mechanism, accuse position mechanism includes the turn-button, and the both sides of turn-button are all rotated and are connected with cone pulley one, and the surface rotation of cone pulley one is connected with cone pulley two, and the top welding of cone pulley one has the rotary column, and the surface card of rotary column is equipped with the channel, and the joint has a card post in the channel, and the skin weld of card post has branch, the outside fixedly connected with frid of rotary column, and the sliding surface of frid is connected with the slider, and the top of slider is equipped with the touch multitouch.

Preferably, the stay cord has been cup jointed in the outside of turn button, and the both ends of stay cord all rotate and are connected with bevel wheel two, and when making the turn button rotate, accessible stay cord drives two synchronous rotations of bevel wheel two, and the bevel wheel one has two and the specification is the same, the size of bevel wheel one and the size looks adaptation of bevel wheel two, and the bottom welding of rotary column has the vaulting pole, and the rotary column has two and the specification is the same, is equipped with the frid between two rotary columns.

Preferably, the channel presents inversion V form, and its size and the size looks adaptation of card post, and during the initial time, the card post card is at the peak of channel, and when making the rotary column take place to rotate, the chute rotation of channel is close to the card post, and the pulling card post moves down, and the draw-in groove has been seted up on the surface of frid, and the inside joint of draw-in groove has the slider, and the bottom of cell wall is equipped with the feeler block on the draw-in groove, and the equal fixedly connected with branch in both ends of slider, during the initial time, the slider is located the peak, contacts with the feeler block, and the cylinder that is connected with it electricity in the piston outside does not operate this moment.

Still including the mechanism of bending, the mechanism of bending includes communicating pipe, and the top welding of communicating pipe has the person in charge, and the inside sliding connection who is responsible for has piston one, and the bottom welding of communicating pipe has the auxiliary pipe, and the inside sliding connection of auxiliary pipe has piston two, and the equal sliding connection in both ends of communicating pipe has piston three, and the outside of piston three is rotated and is connected with the bull stick group, and the outside swing joint of bull stick group has the follower rod.

Preferably, an air cylinder is arranged on the outer side of the first piston, a driving of the air cylinder is electrically connected with the contact block, two pistons are arranged and have the same specification, the third piston is inverted T-shaped, a through hole is formed in the end portion of the transverse rod, the distance between the third piston is farthest in the initial period, the second piston and the first piston are located at the highest point, the rotating rod group is composed of a transverse rod and an inclined rod, the inclined rod is clamped in the through hole of the third piston, the follower rod is inverted L-shaped, a through hole is formed in the end portion of the vertical rod, the size of the through hole is matched with that of the transverse rod of the rotating rod group, a through hole is formed in the transverse rod of the follower rod, when the follower rod moves downwards, the rotating rod group is pulled to rotate, and the rotating rod group pushes the third piston to move in the communication pipe.

Preferably, the outer side of the bending mechanism is provided with a shell, a pressing tool is arranged inside the shell, the top of the pressing tool is movably connected with a blocking plate, the bottom of the blocking plate is welded with an inner rod, the surface of the inner rod is rotatably connected with a roller, and an outer pipe is arranged on the outer side of the roller.

Preferably, the circle groove has been seted up on the surface of shell bottom plate, and the vaulting pole joint of rotary column bottom is at its circle inslot, and tamp and two fixed connection of piston hinder board and branch fixed connection, the size of interior pole and the size looks adaptation of follower bar horizontal piece opening, the gyro wheel have four and the specification is the same, and per two gyro wheels are a set of, and two gyro wheels of every group all hug closely with the inner wall of outer tube, and the inside of outer tube is equipped with the spring, and the stability that the pole removed in the setting up of spring and interior pole swing joint, gyro wheel increased.

(II) advantageous effects

Compared with the prior art, the invention provides an adjustable bending device for a coiled material packaging material, which has the following beneficial effects:

1. this a bending apparatus with adjustable be used for coiled material packaging material, through the combined action of turn-button, cone pulley two, cone pulley one, the rotary column, the card post, branch and hindrance board, rotate the turn-button, drive cone pulley two and rotate, make cone pulley one and rotary column rotate in step, the rotary column drives the card post and moves down together with branch, the hindrance board moves down in step, adjust the position of hindrance board, make packaging material when bending, contact with the hindrance board, regard as the reference with the position of hindrance board, the degree that can its bending of audio-visual perception, make things convenient for the staff to observe it.

2. This a bending apparatus with adjustable be used for coiled material packaging material, through the combined action of hindrance board, interior pole, follower rod, bull stick group, piston three, communicating pipe, piston two, accessory pipe and tamp, the hindrance board drives interior pole and follower rod and moves down, makes the follower rod pulling bull stick group take place to rotate, and bull stick group promotes piston three and takes place to remove in the communicating pipe, and the atmospheric pressure that produces promotes piston two and moves down in the accessory pipe, and tamp synchronous motion makes the hindrance board take place the position adjustment, and the tamp moves down in step, compensates the distance between hindrance board and the fixed packaging material of completion, conveniently controls the bending degree of packaging material.

3. This a bending apparatus with adjustable be used for coiled material packaging material, through branch, the slider, the touch multitouch, piston one, be responsible for, the combined action of piston two and hindrance board, branch drives the slider and moves down, the touch multitouch is kept away from to the slider, the cylinder outside piston one is connected with it and begins to move, cylinder control piston one moves down in being responsible for, the atmospheric pressure that produces promotes piston two and further moves down, piston two is close to packaging material, extrude it, make packaging material and hindrance board paste mutually, realize packaging material's automatic bending, and its bending degree is adjustable, and the simple operation, the practicality is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a position control mechanism according to the present invention;

fig. 3 is a schematic structural view of the press bending mechanism of the present invention.

In the figure: 1. a housing; 2. a position control mechanism; 21. turning a button; 22. a first cone pulley; 23. a second conical pulley; 24. turning the column; 25. a channel; 26. clamping the column; 27. a strut; 28. a groove plate; 29. a slider; 210. a contact block; 3. a bending mechanism; 31. a communicating pipe; 32. a main pipe; 33. a first piston; 34. a secondary pipe; 35. a second piston; 36. a piston III; 37. a rotating rod group; 38. a follower rod; 4. pressing; 5. a baffle plate; 6. an inner rod; 7. a roller; 8. an outer tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, an adjustable bending apparatus for a web packaging material includes a housing 1, a position control mechanism 2, a bending mechanism 3, a pressing device 4, a baffle plate 5, an inner rod 6, a roller 7, and an outer tube 8.

The position control mechanism 2 comprises a rotating button 21, two sides of the rotating button 21 are rotatably connected with a cone pulley I22, the surface of the cone pulley I22 is rotatably connected with a cone pulley II 23, the top of the cone pulley I22 is welded with a rotating column 24, the surface of the rotating column 24 is clamped with a channel 25, the channel 25 is clamped with a clamping column 26, the surface of the clamping column 26 is welded with a support rod 27, the outer side of the rotating column 24 is fixedly connected with a groove plate 28, the surface of the groove plate 28 is slidably connected with a sliding block 29, the top of the sliding block 29 is provided with a contact block 210, the outer side of the rotating button 21 is sleeved with a pull rope, two ends of the pull rope are rotatably connected with the cone pulley II 23, when the rotating button 21 rotates, the two cone pulley II 23 can be driven by the pull rope to synchronously rotate, the two cone pulleys I22 have the same size, the size of the cone pulley I22 is matched with the size of the cone pulley II 23, the bottom of the rotating column 24 is welded with a support rod, the two rotating columns 24 have the same size, the groove plate 28 is arranged between the two rotating columns 24, the channel 25 is inverted V-shaped, the size of the channel is matched with that of the clamping column 26, the clamping column 26 is clamped at the highest point of the channel 25 initially, when the rotary column 24 rotates, the chute of the channel 25 rotates to be close to the clamping column 26, the clamping column 26 is pulled to move downwards, the surface of the groove plate 28 is provided with a clamping groove, the sliding block 29 is clamped inside the clamping groove, the bottom of the upper groove wall of the clamping groove is provided with a contact block 210, two ends of the sliding block 29 are fixedly connected with supporting rods 27, initially, the sliding block 29 is located at the highest point and is in contact with the contact block 210, and at the moment, an air cylinder electrically connected with the sliding block 33 and outside does not operate.

The outside of mechanism 3 that bends is equipped with shell 1, the inside of shell 1 is equipped with tamp 4, the top swing joint of tamp 4 has hindrance board 5, the bottom welding of hindrance board 5 has interior pole 6, the surface of interior pole 6 is rotated and is connected with gyro wheel 7, the outside of gyro wheel 7 is equipped with outer tube 8, the circle groove has been seted up on the surface of shell 1 bottom plate, the vaulting pole joint of column 24 bottom is at its circle inslot, tamp 4 and two 35 fixed connection of piston, hinder board 5 and branch 27 fixed connection, the size of interior pole 6 and the size looks adaptation of the 38 horizontal piece opening of follower rod, gyro wheel 7 has four and the specification is the same, per two gyro wheels 7 are a set of, the outer tube is all hugged closely with the inner wall of outer tube 8 to two gyro wheels 7 of every group, 8's inside is equipped with the spring, spring and interior pole 6 swing joint, the stability that pole 6 removed in gyro wheel 7's setting up the increase.

Example two:

referring to fig. 1-3, an adjustable bending apparatus for a web packaging material includes a housing 1, a position control mechanism 2, a bending mechanism 3, a pressing device 4, a baffle plate 5, an inner rod 6, a roller 7, and an outer tube 8.

The bending mechanism 3 comprises a communication pipe 31, a main pipe 32 is welded at the top of the communication pipe 31, a first piston 33 is slidably connected inside the main pipe 32, a second auxiliary pipe 34 is welded at the bottom of the communication pipe 31, a second piston 35 is slidably connected inside the second auxiliary pipe 34, three pistons 36 are slidably connected at both ends of the communication pipe 31, a rotating rod group 37 is rotatably connected outside the third piston 36, a follower rod 38 is movably connected outside the rotating rod group 37, a cylinder is arranged outside the first piston 33, the cylinder is driven to be electrically connected with a contact block 210, the two pistons 35 have the same specification, the three pistons 36 are inverted T-shaped, a through hole is formed in the end part of a transverse rod, the farthest distance between the two pistons three 36 is initially, the second piston 35 and the highest point of the first piston 33 are both located, the rotating rod group 37 is composed of a transverse rod and an inclined rod, the inclined rod is clamped in the through hole of the three pistons 36, the follower rod 38 is inverted L-shaped, the end of the vertical rod is provided with a through hole, the size of the through hole is matched with that of the cross rod of the rotating rod group 37, the inside of the cross block of the follower rod 38 is provided with a through hole, so that when the follower rod 38 moves downwards, the rotating rod group 37 is pulled to rotate, and the rotating rod group 37 pushes the piston III 36 to move in the communicating pipe 31.

The outside of mechanism 3 that bends is equipped with shell 1, the inside of shell 1 is equipped with tamp 4, the top swing joint of tamp 4 has hindrance board 5, the bottom welding of hindrance board 5 has interior pole 6, the surface of interior pole 6 is rotated and is connected with gyro wheel 7, the outside of gyro wheel 7 is equipped with outer tube 8, the circle groove has been seted up on the surface of shell 1 bottom plate, the vaulting pole joint of column 24 bottom is at its circle inslot, tamp 4 and two 35 fixed connection of piston, hinder board 5 and branch 27 fixed connection, the size of interior pole 6 and the size looks adaptation of the 38 horizontal piece opening of follower rod, gyro wheel 7 has four and the specification is the same, per two gyro wheels 7 are a set of, the outer tube is all hugged closely with the inner wall of outer tube 8 to two gyro wheels 7 of every group, 8's inside is equipped with the spring, spring and interior pole 6 swing joint, the stability that pole 6 removed in gyro wheel 7's setting up the increase.

Example three:

referring to fig. 1-3, an adjustable bending apparatus for a web packaging material includes a housing 1, a position control mechanism 2, a bending mechanism 3, a pressing device 4, a baffle plate 5, an inner rod 6, a roller 7, and an outer tube 8.

The position control mechanism 2 comprises a rotating button 21, two sides of the rotating button 21 are rotatably connected with a cone pulley I22, the surface of the cone pulley I22 is rotatably connected with a cone pulley II 23, the top of the cone pulley I22 is welded with a rotating column 24, the surface of the rotating column 24 is clamped with a channel 25, the channel 25 is clamped with a clamping column 26, the surface of the clamping column 26 is welded with a support rod 27, the outer side of the rotating column 24 is fixedly connected with a groove plate 28, the surface of the groove plate 28 is slidably connected with a sliding block 29, the top of the sliding block 29 is provided with a contact block 210, the outer side of the rotating button 21 is sleeved with a pull rope, two ends of the pull rope are rotatably connected with the cone pulley II 23, when the rotating button 21 rotates, the two cone pulley II 23 can be driven by the pull rope to synchronously rotate, the two cone pulleys I22 have the same size, the size of the cone pulley I22 is matched with the size of the cone pulley II 23, the bottom of the rotating column 24 is welded with a support rod, the two rotating columns 24 have the same size, the groove plate 28 is arranged between the two rotating columns 24, the channel 25 is inverted V-shaped, the size of the channel is matched with that of the clamping column 26, the clamping column 26 is clamped at the highest point of the channel 25 initially, when the rotary column 24 rotates, the chute of the channel 25 rotates to be close to the clamping column 26, the clamping column 26 is pulled to move downwards, the surface of the groove plate 28 is provided with a clamping groove, the sliding block 29 is clamped inside the clamping groove, the bottom of the upper groove wall of the clamping groove is provided with a contact block 210, two ends of the sliding block 29 are fixedly connected with supporting rods 27, initially, the sliding block 29 is located at the highest point and is in contact with the contact block 210, and at the moment, an air cylinder electrically connected with the sliding block 33 and outside does not operate.

The bending mechanism 3 comprises a communication pipe 31, a main pipe 32 is welded at the top of the communication pipe 31, a first piston 33 is slidably connected inside the main pipe 32, a second auxiliary pipe 34 is welded at the bottom of the communication pipe 31, a second piston 35 is slidably connected inside the second auxiliary pipe 34, three pistons 36 are slidably connected at both ends of the communication pipe 31, a rotating rod group 37 is rotatably connected outside the third piston 36, a follower rod 38 is movably connected outside the rotating rod group 37, a cylinder is arranged outside the first piston 33, the cylinder is driven to be electrically connected with a contact block 210, the two pistons 35 have the same specification, the three pistons 36 are inverted T-shaped, a through hole is formed in the end part of a transverse rod, the farthest distance between the two pistons three 36 is initially, the second piston 35 and the highest point of the first piston 33 are both located, the rotating rod group 37 is composed of a transverse rod and an inclined rod, the inclined rod is clamped in the through hole of the three pistons 36, the follower rod 38 is inverted L-shaped, the end of the vertical rod is provided with a through hole, the size of the through hole is matched with that of the cross rod of the rotating rod group 37, the inside of the cross block of the follower rod 38 is provided with a through hole, so that when the follower rod 38 moves downwards, the rotating rod group 37 is pulled to rotate, and the rotating rod group 37 pushes the piston III 36 to move in the communicating pipe 31.

The outside of mechanism 3 that bends is equipped with shell 1, the inside of shell 1 is equipped with tamp 4, the top swing joint of tamp 4 has hindrance board 5, the bottom welding of hindrance board 5 has interior pole 6, the surface of interior pole 6 is rotated and is connected with gyro wheel 7, the outside of gyro wheel 7 is equipped with outer tube 8, the circle groove has been seted up on the surface of shell 1 bottom plate, the vaulting pole joint of column 24 bottom is at its circle inslot, tamp 4 and two 35 fixed connection of piston, hinder board 5 and branch 27 fixed connection, the size of interior pole 6 and the size looks adaptation of the 38 horizontal piece opening of follower rod, gyro wheel 7 has four and the specification is the same, per two gyro wheels 7 are a set of, the outer tube is all hugged closely with the inner wall of outer tube 8 to two gyro wheels 7 of every group, 8's inside is equipped with the spring, spring and interior pole 6 swing joint, the stability that pole 6 removed in gyro wheel 7's setting up the increase.

The working process and the principle of the device are as follows:

initially, the obstructing plate 5 is located at the highest point, which facilitates the placement of the packaging material and provides support for the fixing operation of the packaging material, the rotating button 21 is rotated, the rotating button 21 drives the two cone pulley II 23 to rotate through the pull rope, the cone pulley II 23 is meshed with the cone pulley I22, the top of the cone pulley I22 is fixedly connected with the rotating column 24, the cone pulley II 23 drives the cone pulley I22 to rotate, the rotating column 24 rotates synchronously, because the surface of the rotating column 24 is provided with the channel 25, the clamping column 26 is clamped in the channel 25, the clamping column 26 is arranged at the outer side of the supporting rod 27, the supporting rods 27 are provided with two same specifications, the two supporting rods 27 are respectively and fixedly connected at two ends of the sliding block 29, the sliding block 29 is clamped in the clamping groove of the groove plate 28, which has a limiting effect on the movement of the sliding block 29, the supporting rod 27 and the clamping column 26, when starting, the clamping column 26 is clamped at the highest point of the channel 25, the rotating column 24 drives the channel 25 to rotate, the chute of the channel 25 is close to the clamping column 26, the clamping column 26 is pulled to move downwards, the supporting rod 27 synchronously moves downwards, the supporting rod 27 drives the blocking plate 5 to move downwards, the position of the blocking plate 5 is adjusted, the packaging material is contacted with the blocking plate 5 when being bent, and the bending degree of the packaging material can be intuitively sensed.

The blocking plate 5 moves downwards to drive the inner rod 6 to move in the outer tube 8 and extrude a spring at the bottom of the outer tube, the roller 7 on the surface of the inner rod 6 is tightly attached to the inner wall of the outer tube 8 and rotates along with the movement of the inner rod 6, the inner rod 6 drives the follower rod 38 to synchronously move downwards, the cross rod of the rotating rod group 37 is clamped in the through hole of the vertical rod of the follower rod 38, the lower rod of the rotating rod group 37 is clamped in the through hole of the cross rod of the piston three 36, so that the follower rod 38 pulls the rotating rod group 37 to rotate, the rotating rod group 37 pushes the piston three 36 to move in the communicating tube 31, the space between the piston three and the communicating tube 31 is reduced, the pressure in the communicating tube 31 is increased, the generated air pressure pushes the piston two 35 to move in the auxiliary tube 34, the piston two 35 moves downwards to drive the pressing tool 4 to synchronously move, the blocking plate 5 is adjusted in position, the pressing tool 4 synchronously moves downwards to compensate the distance between the blocking plate 5 and the fixed packaging material, the bending degree of the packaging material is convenient to control.

Meanwhile, the support rod 27 simultaneously moves downwards to drive the sliding block 29 to synchronously move downwards along the clamping groove of the groove plate 28, initially, the sliding block 29 is located at the highest point and is in contact with the contact block 210, at the moment, the cylinder electrically connected with the sliding block 29 outside the first piston 33 does not operate, the sliding block 29 is far away from the contact block 210, the cylinder electrically connected with the sliding block 33 outside the first piston 33 starts to operate, the first piston 33 is controlled by the cylinder to move downwards in the main pipe 32, the first piston 33 reduces the space between the first piston 33 and the main pipe 32, the generated pressure acts on the second piston 35, and as the second piston 35 moves downwards under the action of the third piston 36, the second piston 35 is pushed by air pressure to further move downwards, the second piston 35 is close to the packaging material and extrudes the packaging material, so that the packaging material is attached to the barrier plate 5, the automatic bending of the packaging material is realized, the bending degree of the packaging material is adjustable, and the practicability is higher.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.