Limiting device for film packaging machine and film packaging machine

Abstract

The utility model relates to the technical field of limiting devices of thin film packaging machines, and discloses a limiting device for a thin film packaging machine and the thin film packaging machine. The limiting device comprises a first mounting plate, a second mounting plate, a thin film roll and a supporting rod, a strip-shaped sliding groove is horizontally formed in the top of the outer wall of the supporting rod from left to right, and the left end of the strip-shaped sliding groove is slidably connected with a left rotating shaft seat; a left connecting groove is formed in the right side face of the left rotating shaft seat, a left limiting block is rotationally installed in the left connecting groove, a left connecting screw hole penetrating left and right is formed in the lower end of the left rotating shaft seat, the right end of the strip-shaped sliding groove is slidably connected with a right rotating shaft seat, and a right connecting groove is formed in the left side face of the right rotating shaft seat. A right connecting screw hole penetrating left and right is formed in the lower end of the right rotating shaft seat. The limiting mechanism can be conveniently adjusted, the size of the limiting mechanism can be adjusted according to the size of a thin film roll, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of limit devices for film wrapping machines, in particular to a limit device for a film wrapping machine and a film wrapping machine. Background Art

[0002] In the modern packaging industry, as an indispensable automated production equipment, the performance and stability of a film wrapping machine are directly related to the packaging quality and production efficiency of products. With the diversified and personalized development of market demands, a film wrapping machine is not only required to have high-speed and efficient packaging capabilities, but also needs to continuously improve in aspects such as precise control and safe operation. Among them, the limit device, as an important part of the film wrapping machine, its design and optimization play a crucial role in ensuring precise positioning during the packaging process, preventing mechanical collisions, and enhancing the overall operation stability.

[0003] For the existing limit device of a film wrapping machine, every time different-sized films are replaced during use, it is necessary to disassemble the adjustment screws with tools, re-screw them, and pass through the corresponding adjustment holes. The operation is cumbersome, the work efficiency is low, and due to the adjustment of the distance between the two adjustment screws being restricted by the distance between the adjustment holes, the film roll restricted between the two adjustment screws may still have a small amount of left-right movement, affecting the limit effect.

[0004] Therefore, we propose a limit device for a film wrapping machine and a film wrapping machine. Summary of the Utility Model

[0005] The main purpose of the utility model is to solve the technical problems existing in the above-mentioned prior art, and provide a limit device for a film wrapping machine and a film wrapping machine.

[0006] To achieve the above object, the utility model adopts the following technical solutions. A limiting device for a film wrapping machine includes a first mounting plate, a second mounting plate, a film roll, and a support rod. A strip-shaped sliding groove is horizontally opened from left to right at the top of the outer wall of the support rod. A left rotating shaft seat is slidably connected to the left end of the strip-shaped sliding groove. A left connecting groove is opened on the right side surface of the left rotating shaft seat. A left limiting block is rotatably installed in the left connecting groove. A left connecting screw hole penetrating left and right is opened at the lower end of the left rotating shaft seat. A right rotating shaft seat is slidably connected to the right end of the strip-shaped sliding groove. A right connecting groove is opened on the left side surface of the right rotating shaft seat. A right limiting block is rotatably installed in the right connecting groove. A right connecting screw hole penetrating left and right is opened at the lower end of the right rotating shaft seat. Connecting holes penetrating up and down are respectively opened at one ends of the right limiting block and the left limiting block close to each other. Adjusting blocks are respectively slidably connected to the outer walls of the right limiting block and the left limiting block. Adjusting holes adapted to the connecting holes are evenly distributed and opened at the tops of the two adjusting blocks. An installation cavity is opened on the right side surface of the support rod. A bidirectional threaded rod is arranged in the installation cavity. The strip-shaped sliding groove is communicated with the installation cavity. The left rotating shaft seat is threadedly connected to the outer wall of the left end of the bidirectional threaded rod through the left connecting screw hole opened thereon. The right rotating shaft seat is threadedly connected to the outer wall of the right end of the bidirectional threaded rod through the right connecting screw hole opened thereon.

[0007] Further, a connecting rotating block is fixedly connected to the right end of the bidirectional threaded rod. The left end of the bidirectional threaded rod is rotatably installed on the left end inner wall of the installation cavity.

[0008] Further, the connecting rotating block is rotatably installed at the right end of the installation cavity. A rotating handle is fixedly connected to the right side surface of the connecting rotating block.

[0009] Further, buffer pads are fixedly connected to the bottoms of the two adjusting blocks.

[0010] Further, the left end of the support rod is fixedly installed on the right side wall of the first mounting plate. The film roll is sleeved on the outer wall of the support rod.

[0011] Further, two cylinder shafts are fixedly installed between the lower ends of the mutually close side surfaces of the first mounting plate and the second mounting plate. Drums are respectively rotatably installed on the outer walls of the two cylinder shafts.

[0012] Further, the lower surface of the outer wall of the film roll is in contact with the outer walls of the two drums.

[0013] Further, the size of the connecting rotating block is adapted to the installation cavity.

[0014] This application also proposes a film wrapping machine, which includes the limiting device for a film wrapping machine as described above.

[0015] The utility model provides a limiting device for a film wrapping machine and a film wrapping machine. It has the following

[0016] Beneficial effects:

[0017] 1. When the limit device for the film wrapping machine and the film wrapping machine are in use, through the mutual cooperation among components such as the film roll, support rod, rotating handle, right rotating shaft seat, right limit block, left rotating shaft seat, left limit block, connecting rotating block, bidirectional threaded rod, and adjusting block, when the staff uses this film wrapping machine, first, the film roll is sleeved on the outer wall of the support rod, then the right limit block and the left limit block are rotated to a vertical state, and then the height of the adjusting block is adjusted according to the size of the current film roll. The adjusting block is adjusted to a suitable position, and the adjusting block set on the right limit block and the left limit block is fixed by using fasteners in cooperation with the adjusting holes and connecting holes. Then, one hand holds the support rod firmly, and the other hand holds the rotating handle and performs a rotating operation on the rotating handle. The rotation of the rotating handle drives the connecting rotating block to rotate, the connecting rotating block drives the bidirectional threaded rod to rotate, the rotation of the bidirectional threaded rod drives the left rotating shaft seat and the right rotating shaft seat to approach each other, and at the same time drives the right limit block and the left limit block to approach each other until the mutually approaching side surfaces of the adjusting blocks at both ends are attached to the left and right side surfaces of the film roll. Then, stop rotating the rotating handle, and then the staff can perform the next operation. In this way, it is convenient to adjust the limit mechanism, and the size of the limit mechanism can also be adjusted according to the size of the film roll, improving the practicability.

[0018] 2. When the limit device for the film wrapping machine and the film wrapping machine are in use, through the mutual cooperation among components such as the film roll, adjusting block, right limit block, left limit block, and buffer pad, when the staff uses this film wrapping machine, after the film roll is sleeved on the outer wall of the support rod and the limit mechanism is used to limit it, when the film wrapping machine is working, through the buffer pad provided on the adjusting block, this can reduce the impact and noise when the limit mechanism contacts the packaging material.

[0019] 3. When the limit device for the film wrapping machine and the film wrapping machine are in use, through the mutual cooperation among components such as the film roll, support rod, rotating handle, right rotating shaft seat, right limit block, left rotating shaft seat, left limit block, connecting rotating block, bidirectional threaded rod, and adjusting block, the limit device of this film wrapping machine has a simple structure and convenient operation. The staff does not need to spend a lot of time and energy to learn, improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementable conditions of the present utility model. Therefore, they do not have a substantial technical meaning.

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure;

[0022] Figure 2 It is a schematic diagram of the overall structure of the support rod;

[0023] Figure 3 Schematic diagram of the support rod decomposition structure

[0024] Figure 4 Schematic diagram of the right limit block in the open state

[0025] Figure 5 Schematic diagram of the adjusting block

[0026] Legend description

[0027] 1. First mounting plate; 2. Second mounting plate; 3. Film roll; 4. Roller; 5. Cylinder shaft; 6. Support rod; 7. Rotating handle; 8. Strip-shaped sliding groove; 9. Right rotating shaft seat; 10. Right connecting groove; 11. Right limit block; 12. Left rotating shaft seat; 13. Left connecting groove; 14. Left limit block; 15. Installation cavity; 16. Connecting rotating block; 17. Bidirectional threaded rod; 18. Right connecting screw hole; 19. Left connecting screw hole; 20. Adjusting block; 21. Adjusting hole; 22. Connecting hole; 23. Buffer pad Detailed implementation manners

[0028] A limiting device for a film wrapping machine, such as Figures 1-5As shown in the figure, it includes a first mounting plate 1, a second mounting plate 2, a film roll 3 and a support rod 6. A strip-shaped chute 8 is horizontally opened from left to right at the top of the outer wall of the support rod 6. The left end of the strip-shaped chute 8 is slidably connected with a left rotating shaft seat 12. A left connection groove 13 is opened on the right side surface of the left rotating shaft seat 12. A left limiting block 14 is rotatably installed in the left connection groove 13. A left connection screw hole 19 penetrating left and right is opened at the lower end of the left rotating shaft seat 12. The right end of the strip-shaped chute 8 is slidably connected with a right rotating shaft seat 9. A right connection groove 10 is opened on the left side surface of the right rotating shaft seat 9. A right limiting block 11 is rotatably installed in the right connection groove 10. A right connection screw hole 18 penetrating left and right is opened at the lower end of the right rotating shaft seat 9. Connecting holes 22 penetrating up and down are respectively opened at one ends of the right limiting block 11 and the left limiting block 14 close to each other. Adjusting blocks 20 are respectively slidably connected to the outer walls of the right limiting block 11 and the left limiting block 14. Adjusting holes 21 adapted to the connecting holes 22 are evenly distributed and opened at the tops of the two adjusting blocks 20. An installation cavity 15 is opened on the right side surface of the support rod 6. A bidirectional threaded rod 17 is arranged in the installation cavity 15. The strip-shaped chute 8 is communicated with the installation cavity 15. The left rotating shaft seat 12 is threadedly connected to the outer wall of the left end of the bidirectional threaded rod 17 through the left connection screw hole 19 opened thereon. The right rotating shaft seat 9 is threadedly connected to the outer wall of the right end of the bidirectional threaded rod 17 through the right connection screw hole 18 opened thereon. A connection rotating block 16 is fixedly connected to the right end of the bidirectional threaded rod 17. The left end of the bidirectional threaded rod 17 is rotatably installed on the left inner wall of the installation cavity 15. The connection rotating block 16 is rotatably installed at the right end of the installation cavity 15. The size of the connection rotating block 16 is adapted to the installation cavity 15. A rotating handle 7 is fixedly connected to the right side surface of the connection rotating block 16. Buffer pads 23 are fixedly connected to the bottoms of the two adjusting blocks 20. Through the buffer pads 23 provided on the adjusting blocks 20, the limiting mechanism can reduce impact and noise when contacting the packaging material. The left end of the support rod 6 is fixedly installed on the right side wall of the first mounting plate 1. The film roll 3 is sleeved on the outer wall of the support rod 6. Two cylinder shafts 5 are fixedly installed between the lower ends of the mutually close side surfaces of the first mounting plate 1 and the second mounting plate 2. Drums 4 are respectively rotatably installed on the outer walls of the two cylinder shafts 5. The lower surface of the outer wall of the film roll 3 is in contact with the outer walls of the two drums 4.

[0029] In use, through the mutual cooperation among components such as the film roll 3, the support rod 6, the rotating handle 7, the right rotating shaft seat 9, the right limit block 11, the left rotating shaft seat 12, the left limit block 14, the connecting rotating block 16, the bidirectional threaded rod 17, and the adjusting block 20, when the staff uses this film wrapping machine, first, the film roll 3 is sleeved on the outer wall of the support rod 6, then the right limit block 11 and the left limit block 14 are rotated to the vertical state, and then the height of the adjusting block 20 is adjusted according to the size of the current film roll 3. The adjusting block 20 is adjusted to a suitable position, and the adjusting block 20 provided on the right limit block 11 and the left limit block 14 is fixed by using fasteners in cooperation with the adjusting hole 21 and the connecting hole 22. Then, one hand holds the support rod 6 firmly, and the other hand holds the rotating handle 7 and performs a rotating operation on the rotating handle 7. The rotation of the rotating handle 7 drives the connecting rotating block 16 to rotate, the connecting rotating block 16 drives the bidirectional threaded rod 17 to rotate, the rotation of the bidirectional threaded rod 17 drives the left rotating shaft seat 12 and the right rotating shaft seat 9 to approach each other, and at the same time drives the right limit block 11 and the left limit block 14 to approach each other until the mutually approaching side surfaces of the adjusting blocks 20 at both ends are attached to the left and right side surfaces of the film roll 3. Then, stop rotating the rotating handle 7, and then the staff can perform the next operation. This can facilitate the adjustment of the limiting mechanism and can also adjust the size of the limiting mechanism according to the size of the film roll 3, improving the practicability.

[0030] This application also proposes a film wrapping machine, which includes the above-mentioned limiting device for the film wrapping machine. The specific structure of the limiting device for the film wrapping machine refers to the above-mentioned embodiments. Since this film wrapping machine adopts all the technical solutions of the above-mentioned all embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.

[0031] Working principle of the utility model: When in use, when the staff uses the film wrapping machine, first, the film roll 3 is sleeved on the outer wall of the support rod 6, then the right limit block 11 and the left limit block 14 are rotated to the vertical state, and then the height of the adjusting block 20 is adjusted according to the size of the current film roll 3. The adjusting block 20 is adjusted to a suitable position. The adjusting block 20 provided on the right limit block 11 and the left limit block 14 is fixed by using a fastener in cooperation with the adjusting hole 21 and the connecting hole 22. Then, one hand holds the support rod 6 firmly, and the other hand holds the rotating handle 7 and performs a rotating operation on the rotating handle 7. The rotation of the rotating handle 7 drives the connecting rotating block 16 to rotate, the connecting rotating block 16 drives the bidirectional threaded rod 17 to rotate, the rotation of the bidirectional threaded rod 17 drives the left rotating shaft seat 12 and the right rotating shaft seat 9 to approach each other, and at the same time drives the right limit block 11 and the left limit block 14 to approach each other until the mutually approaching side surfaces of the adjusting blocks 20 at the left and right ends are attached to the left and right side surfaces of the film roll 3. Then, stop rotating the rotating handle 7, and then the staff can perform the next operation. This can facilitate the adjustment of the limit mechanism and can also adjust the size of the limit mechanism according to the size of the film roll 3, improving the practicability.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art of this industry should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A limiting device for a film packaging machine, comprising a first mounting plate (1), a second mounting plate (2), a film roll (3) and a support rod (6), characterized in that: The top of the outer wall of the support rod (6) is horizontally provided with a strip-shaped slide groove (8) from left to right, the left end of the strip-shaped slide groove (8) is slidably connected with a left rotating shaft seat (12), the right side surface of the left rotating shaft seat (12) is provided with a left connecting groove (13), a left limit block (14) is rotatably installed in the left connecting groove (13), the lower end of the left rotating shaft seat (12) is provided with a left connecting screw hole (19) running through the left and right sides, the right end of the strip-shaped slide groove (8) is slidably connected with a right rotating shaft seat (9), the left side surface of the right rotating shaft seat (9) is provided with a right connecting groove (10), a right limit block (11) is rotatably installed in the right connecting groove (10), the lower end of the right rotating shaft seat (9) is provided with a right connecting screw hole (18) running through the left and right sides, the right limit block (11) and the left limit block (14) are mutually abutted. The near end is respectively provided with connecting holes (22) penetrating up and down, and the outer walls of the right limit block (11) and the left limit block (14) are respectively slidably connected with adjustment blocks (20), and the tops of the two adjustment blocks (20) are respectively evenly distributed with adjustment holes (21) adapted to the connecting holes (22). The right side surface of the support rod (6) is provided with an installation cavity (15), and a bidirectional threaded rod (17) is arranged in the installation cavity (15). The strip slide groove (8) is connected with the installation cavity (15), and the left rotating shaft seat (12) is threadedly connected to the left end outer wall of the bidirectional threaded rod (17) through the left connecting screw hole (19) provided thereon, and the right rotating shaft seat (9) is threadedly connected to the right end outer wall of the bidirectional threaded rod (17) through the right connecting screw hole (18) provided thereon.

2. The limiting device for a film packaging machine according to claim 1, characterized in that: The right end of the bidirectional threaded rod (17) is fixedly connected to a connecting rotating block (16); the left end of the bidirectional threaded rod (17) is rotatably mounted on the left inner wall of the mounting cavity (15); the connecting rotating block (16) is rotatably mounted on the right end of the mounting cavity (15); and the right side surface of the connecting rotating block (16) is fixedly connected to a rotating handle (7).

3. The limiting device for a film packaging machine according to claim 1, characterized in that: The bottoms of the two adjustment blocks (20) are both fixedly connected with buffer pads (23).

4. The limiting device for a film packaging machine according to claim 1, characterized in that: The left end of the support rod (6) is fixedly mounted on the right side wall of the first mounting plate (1), and the film roll (3) is sleeved on the outer wall of the support rod (6).

5. The limiting device for a film packaging machine according to claim 1, characterized in that: Two cylindrical shafts (5) are fixedly mounted between the lower ends of the mutually adjacent sides of the first mounting plate (1) and the second mounting plate (2), and rollers (4) are rotatably mounted on the outer walls of the two cylindrical shafts (5).

6. The limiting device for a film packaging machine according to claim 1, characterized in that: The lower surface of the outer wall of the film roll (3) is in contact with the outer walls of the two rollers (4).

7. The limiting device for a film packaging machine according to claim 2, characterized in that: The size of the connecting rotating block (16) is adapted to the installation cavity (15).

8. A film packaging machine, characterized in that: A limiting device for a film packaging machine comprising the method described in any one of claims 1 to 7.

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