Film drawing mechanism of automatic thermal shrinkage film wrapping machine

Abstract

The utility model relates to the technical field of thermal shrinkage automatic film wrapping machines, in particular to a film drawing mechanism of a thermal shrinkage automatic film wrapping machine, which comprises a workbench, a driving component, a first positioning plate, a second positioning plate and a third positioning plate, and a mounting seat and a first limit rod are rotatably connected between the first positioning plate and the third positioning plate. A second limiting rod is rotatably connected between the first positioning plate and the second positioning plate, the inner side of the second positioning plate is slidably connected with a first membrane separating shell, and a membrane pressing block is arranged on the inner side of the first membrane separating shell. Through the arrangement of the mounting base, the first limiting rod, the second limiting rod, the first separating film, the film pressing block, the second separating film shell, the rail shaft, the sliding piece, the hydraulic rod and the adhesive tape cutter, the device can conveniently replace a heat shrinkage film in a bonding mode; in the replacement process, workers do not need to manually drive the heat shrinkage film to penetrate through a plurality of limiting rods of the film drawing mechanism, and the method saves time and labor and is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of heat shrink automatic film packaging machines, in particular to a film pulling mechanism of a heat shrink automatic film packaging machine. Background Art

[0002] The heat shrink film packaging method is to wrap the outside of the product with heat shrink film and cut it with heated cutting knives to form a packaging bag. It is then heated to shrink and adhere to the surface of the product, which can fully display the appearance of the product in the package and increase the beauty and value of the product.

[0003] The heat shrink film packaging method needs to be implemented by an automatic heat shrink film wrapping machine. The automatic heat shrink film wrapping machine pulls the heat shrink film through its film pulling mechanism, so that the product and the heat shrink film move together on the packaging production line, which is convenient for streamlined and rapid packaging. The film pulling mechanism of some existing automatic heat shrink film wrapping machines requires manual film replacement. The current manual film replacement method is to manually remove the empty roll of heat shrink film from the mounting seat after the previous roll of heat shrink film is used up, and then install a new roll of heat shrink film on the mounting seat, and then disassemble the new roll of heat shrink film and pass it through multiple limit rods of the film pulling mechanism in turn, and finally fix the head of the heat shrink film on the packaging mechanism of the automatic film wrapping machine. This method is time-consuming and labor-intensive, and the staff needs to hold the heat shrink film and operate in the film pulling mechanism, which is relatively dangerous. Therefore, a film pulling mechanism of an automatic heat shrink film wrapping machine is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a film-drawing mechanism for a heat shrink automatic film wrapping machine, so as to solve the problem that the film-drawing mechanism of some existing heat shrink automatic film wrapping machines is time-consuming and labor-intensive when manually changing the film, and the staff need to hold the heat shrink film in the film-drawing mechanism to operate, which is relatively dangerous.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The film-pulling mechanism of a heat shrink automatic film wrapping machine comprises a workbench, a driving assembly, a first positioning plate, a second positioning plate and a third positioning plate, wherein a mounting seat and a first limiting rod are rotatably connected between the first positioning plate and the third positioning plate, a second limiting rod is rotatably connected between the first positioning plate and the second positioning plate, a first film-splitting shell is slidably connected to the inner side of the second positioning plate, a film pressing block is provided on the inner side of the first film-splitting shell, a second film-splitting shell is provided on the top of the first film-splitting shell, a support is fixedly connected to the bottom of the first film-splitting shell, a first adjusting member is fixedly connected to the front end of the film-splitting block, a second adjusting member is fixedly connected to the top of the second film-splitting shell, the bottoms of the support, the first adjusting member and the second adjusting member are all fixedly connected to the sliding plate, the top of the workbench is slidably connected to the sliding plate, the top of the sliding plate is fixedly connected to a controller, a track shaft is fixedly connected between the first positioning plate and the second positioning plate, a sliding member is slidably connected to the outer side of the track shaft, a hydraulic rod is fixedly connected to the relative inner sides of the two sliding members, and a tape cutter is fixedly connected to the relative inner sides of the two hydraulic rods.

[0007] Preferably, a driving assembly, a first positioning plate and a second positioning plate are fixedly connected to the top of the workbench, a third positioning plate is fixedly connected to the top of the second positioning plate, a rectangular sliding groove horizontally distributed in the front-to-back direction is provided on the top of the workbench, and the driving assembly is composed of a driving motor, a driving rod fixedly connected to the main shaft of the driving motor, and a limit seat rotatably connected to the driving rod.

[0008] Preferably, there are two of each of the mounting seat, the first limiting rod and the second limiting rod, and the mounting seat and the first limiting rod are symmetrically distributed on the left and right.

[0009] Preferably, the first membrane shell and the second membrane shell are symmetrically distributed up and down, the first membrane shell and the second membrane shell are both shells with one side open, and the film pressing block is an "L" bending block.

[0010] Preferably, the support member is a vertically distributed rectangular shaft, the first adjusting member is a vertically distributed electric telescopic rod, and the second adjusting member is composed of two vertically distributed electric telescopic rods fixedly connected to the bottom of a "T"-shaped bending block.

[0011] Preferably, a rectangular sliding block is provided at the bottom of the sliding plate, and the controller is electrically connected to the first adjusting member and the second adjusting member respectively.

[0012] Preferably, there are two track shafts, sliding members, hydraulic rods and tape cutters, each of which is a horizontally distributed rectangular shaft, the sliding member is composed of a rectangular sleeve with a handle fixedly connected to the side, and the hydraulic rod and tape cutter are both horizontally distributed.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, through the arranged mounting seat, the first limiting rod, the second limiting rod, the first film separation, the film pressing block, the second film separation shell, the track shaft, the sliding part, the hydraulic rod, and the tape cutter, the device can conveniently replace the heat shrink film by bonding. During the replacement process, the staff does not need to manually drive the heat shrink film to pass through the multiple limiting rods of the film pulling mechanism. This method saves time and effort and is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the limit rod of the utility model;

[0017] Figure 3 This is a cross-sectional view of the installation structure of the limit rod of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the membrane housing of the utility model;

[0019] Figure 5 For this utility model Figure 2 A schematic diagram of the structure at A;

[0020] Figure 6 For this utility model Figure 2 Schematic diagram of the structure at B;

[0021] Figure 7 For this utility model Figure 3 Schematic diagram of the structure at C.

[0022] In the figure: 1. workbench; 2. drive assembly; 3. first positioning plate; 4. second positioning plate; 5. third positioning plate; 6. mounting seat; 7. first limiting rod; 8. second limiting rod; 9. first film-dividing shell; 10. film pressing block; 11. second film-dividing shell; 12. supporting member; 13. first adjusting member; 14. second adjusting member; 15. sliding plate; 16. controller; 17. track shaft; 18. sliding member; 19. hydraulic rod; 20. tape cutter. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0026] See also Figure 1-7 , the utility model provides a technical solution:

[0027] A film-pulling mechanism of a heat-shrinking automatic film-wrapping machine comprises a workbench 1, a driving assembly 2, a first positioning plate 3, a second positioning plate 4 and a third positioning plate 5, a mounting seat 6 and a first limiting rod 7 are rotatably connected between the first positioning plate 3 and the third positioning plate 5, a second limiting rod 8 is rotatably connected between the first positioning plate 3 and the second positioning plate 4, a first film-dividing shell 9 is slidably connected to the inner side of the second positioning plate 4, a film-pressing block 10 is provided on the inner side of the first film-dividing shell 9, a second film-dividing shell 11 is provided on the top of the first film-dividing shell 9, a support 12 is fixedly connected to the bottom of the first film-dividing shell 9, and a front end of the film-pressing block 10 is fixedly connected to A first adjusting member 13 and a second adjusting member 14 are fixedly connected to the top of the second membrane shell 11, a sliding plate 15 is fixedly connected to the bottom of the supporting member 12, the first adjusting member 13 and the second adjusting member 14, the sliding plate 15 is slidably connected to the top of the workbench 1, a controller 16 is fixedly connected to the top of the sliding plate 15, a track shaft 17 is fixedly connected between the first positioning plate 3 and the second positioning plate 4, a sliding member 18 is slidably connected to the outer side of the track shaft 17, hydraulic rods 19 are fixedly connected to the relative inner sides of the two sliding members 18, and tape cutters 20 are fixedly connected to the relative inner sides of the two hydraulic rods 19.

[0028] The top of the workbench 1 is fixedly connected with a driving component 2, a first positioning plate 3 and a second positioning plate 4, and the top of the second positioning plate 4 is fixedly connected with a third positioning plate 5. A rectangular sliding groove horizontally distributed in the front-to-back direction is provided on the top of the workbench 1. The driving component 2 is composed of a driving motor, a driving rod fixedly connected to the main shaft of the driving motor, and a limiting seat rotatably connected to the driving rod, which can assist in driving the heat shrink film to move; there are two mounting seats 6, first limiting rods 7 and second limiting rods 8, and the mounting seats 6 and the first limiting rods 7 are symmetrically distributed on the left and right, which can provide installation space for spare heat shrink film; the first film shell 9 and the second film shell 11 are symmetrically distributed up and down, and the first film shell 9 and the second film shell 11 are both shells with one side open, and the film pressing block 10 is an "L" bending block, which can cooperate with the first film shell 9 and the second film shell 11 to heat shrink The film is temporarily fixed; the support member 12 is a vertically distributed rectangular axis, the first adjusting member 13 is a vertically distributed electric telescopic rod, and the second adjusting member 14 is composed of two vertically distributed electric telescopic rods fixedly connected to the bottom of the "T"-shaped bending block, which can drive the film pressing block 10 and the second film dividing shell 11 to move up and down; a rectangular sliding block is provided at the bottom of the sliding plate 15, and the controller 16 is electrically connected to the first adjusting member 13 and the second adjusting member 14 respectively, and can control the operating state of the first adjusting member 13 and the second adjusting member 14; there are two track shafts 17, sliding members 18, hydraulic rods 19 and tape cutters 20, and the track shafts 17 are all horizontally distributed rectangular shafts. The sliding member 18 is composed of a handle fixedly connected to the side of a rectangular sleeve, and the hydraulic rod 19 and the tape cutter 20 are both horizontally distributed, which can drive the tape to move and cut the tape.

[0029] Workflow: Turn on the power before use. The drive assembly 2 and the tape cutter 20 of the device are existing equipment. The drive assembly 2, the first adjustment member 13, the second adjustment member 14 and the hydraulic rod 19 of the device are all electrical instruments. The drive assembly 2 and the hydraulic rod 19 of the device can be manually controlled. The controller 16 of the device can control the operating state of the first adjustment member 13 and the second adjustment member 14. The above are all existing technologies. The heat shrink film is a packaging material that is folded in half and wound into a roll. When using the device for the first time, the third positioning plate 4 fixedly connected to the top of the second positioning plate 4 is fixed. The plate 5 is temporarily removed, and the rolled heat shrink film is put on the mounting seat 6 from the front end of the mounting seat 6 to ensure that the open end of the heat shrink film folded in half faces forward, and then the third positioning plate 5 is refixed, and the rear ends of the first film shell 9, the film pressing block 10 and the second film shell 11 are not in contact with the first positioning plate 3. The sliding plate 15 is pulled to move it back and forth relative to the workbench 1, and the length of the first film shell 9, the film pressing block 10 and the second film shell 11 protruding backward relative to the second positioning plate 4 can be adjusted to correspond to the width of the heat shrink film after folding in half, and then the head of the heat shrink film is pulled, and the heat shrink film is stretched in accordance with the pressure drop. Figure 3As shown in the figure, the heat shrink film passes through the first limiting rod 7, the second film shell 11, the first film shell 9, the second limiting rod 8 and the driving assembly 2 in sequence. The heat shrink film is in a folded state when passing through the first limiting rod 7, the second limiting rod 8 and the driving assembly 2. When the heat shrink film is in the second film shell 11 and the first film shell 9, its folded state is changed. Since the rear ends of the first film shell 9, the film pressing block 10 and the second film shell 11 are not in contact with the first positioning plate 3, the folded heat shrink film can be unfolded. The unfolded heat shrink film passes through the left and right sides of the second film shell 11 and the first film shell 9. After the heat shrink film passes through the driving assembly 2, its head is placed When a roll of heat shrink film is used up, it is only necessary to remove the third positioning plate 5 and put the spare heat shrink film on another mounting seat 6, and the support member 12 fixes the first film shell 9. The controller 16 controls the first adjusting member 13 and the second adjusting member 14 to extend upward at different distances respectively, so as to drive the film pressing block 10 and the second film shell 11 to move up at different distances respectively, so as to separate the second film shell 11, the film pressing block 10 and the first film shell 9, and then insert the tail of the original heat shrink film into the first film shell 9, put the head of the spare heat shrink film into the second film shell 11, and then adjust the first The adjusting member 13 continues to extend upward, so that the first adjusting member 13 drives the film pressing block 10 to move upward, so that the upper half of the film pressing block 10 enters the second film sub-shell 11, and the head of the spare heat shrink film is fixed by the second film sub-shell 11 and the film pressing block 10, and then the first adjusting member 13 and the second adjusting member 14 are adjusted to retract synchronously, so that the lower half of the film pressing block 10 enters the first film sub-shell 9, and the tail of the original heat shrink film is fixed by the film pressing block 10 and the first film sub-shell 9. The staff only needs to remove the baffle on the second positioning plate 4, hold the sliding member 18 and adjust the hydraulic rod 19. The hydraulic rod 19 extends out to drive the tape cutter 20 to move, and the tape cutter The adhesive tape on the tape cutter 20 can contact the heat shrink film, and the sliding member 18 is pulled to slide from the back to the front along the track shaft 17, so that the tape cutter 20 moves to bond the two rolls of heat shrink film to each other, and then the first adjusting member 13 and the second adjusting member 14 are controlled by the controller 16 to extend upward at different distances respectively, so that the fixation of the heat shrink film can be released, and the heat shrink film can be moved normally for packaging; the device can replace the heat shrink film conveniently and quickly, and the staff does not need to manually drive the heat shrink film to pass through the multiple limit rods of the film pulling mechanism during the replacement process. This method is more time-saving and labor-saving, and is safer.

[0030] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film-pulling mechanism of a heat shrink automatic film wrapping machine, comprising a workbench (1), a drive assembly (2), a first positioning plate (3), a second positioning plate (4) and a third positioning plate (5), characterized in that: A mounting seat (6) and a first limiting rod (7) are rotatably connected between the first positioning plate (3) and the third positioning plate (5); a second limiting rod (8) is rotatably connected between the first positioning plate (3) and the second positioning plate (4); a first film separation shell (9) is slidably connected to the inner side of the second positioning plate (4); a film pressing block (10) is provided on the inner side of the first film separation shell (9); a second film separation shell (11) is provided on the top of the first film separation shell (9); a supporting member (12) is fixedly connected to the bottom of the first film separation shell (9); a first adjusting member (13) is fixedly connected to the front end of the film pressing block (10); and a second film separation shell (11) is fixedly connected to the top of the second film separation shell (11). The second adjusting member (14) comprises a sliding plate (15) fixedly connected to the bottom of the supporting member (12), the first adjusting member (13) and the second adjusting member (14); the sliding plate (15) is slidably connected to the top of the workbench (1); the top of the sliding plate (15) is fixedly connected to a controller (16); a track shaft (17) is fixedly connected between the first positioning plate (3) and the second positioning plate (4); a sliding member (18) is slidably connected to the outer side of the track shaft (17); hydraulic rods (19) are fixedly connected to the opposite inner sides of the two sliding members (18); and tape cutters (20) are fixedly connected to the opposite inner sides of the two hydraulic rods (19).

2. The film-drawing mechanism of the heat shrink automatic film wrapping machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a driving assembly (2), a first positioning plate (3) and a second positioning plate (4); the top of the second positioning plate (4) is fixedly connected to a third positioning plate (5); the top of the workbench (1) is provided with a rectangular sliding groove horizontally distributed in the front-to-back direction; the driving assembly (2) is composed of a driving motor, a driving rod fixedly connected to the main shaft of the driving motor, and a limit seat rotatably connected to the driving rod.

3. The film-drawing mechanism of the heat shrink automatic film wrapping machine according to claim 1, characterized in that: There are two of each of the mounting seat (6), the first limiting rod (7) and the second limiting rod (8), and the mounting seat (6) and the first limiting rod (7) are symmetrically distributed left and right.

4. The film-drawing mechanism of the heat shrink automatic film wrapping machine according to claim 1, characterized in that: The first film shell (9) and the second film shell (11) are symmetrically distributed up and down; the first film shell (9) and the second film shell (11) are both shells with one side open; and the film pressing block (10) is an "L" bent block.

5. The film-drawing mechanism of the heat shrink automatic film wrapping machine according to claim 1, characterized in that: The support member (12) is a vertically distributed rectangular shaft, the first adjustment member (13) is a vertically distributed electric telescopic rod, and the second adjustment member (14) is composed of two vertically distributed electric telescopic rods fixedly connected at the bottom of a "T"-shaped bending block.

6. The film-drawing mechanism of the heat shrink automatic film wrapping machine according to claim 1, characterized in that: A rectangular sliding block is provided at the bottom of the sliding plate (15), and the controller (16) is electrically connected to the first adjusting member (13) and the second adjusting member (14) respectively.

7. The film-drawing mechanism of the heat shrink automatic film wrapping machine according to claim 1, characterized in that: The track shaft (17), the sliding member (18), the hydraulic rod (19) and the tape cutter (20) are each in two pieces. The track shaft (17) is a horizontally distributed rectangular shaft. The sliding member (18) is composed of a rectangular sleeve with a handle fixedly connected to the side surface. The hydraulic rod (19) and the tape cutter (20) are both horizontally distributed.

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