Automatic limiting device

Abstract

The utility model discloses an automatic limiting device which comprises a device shell, limiting mechanisms are arranged on the two sides of the device shell respectively, heat dissipation mechanisms are arranged on the two limiting mechanisms respectively, and a protection door is detachably connected to the outer portion of the device shell through bolts. According to the automatic limiting device provided by the utility model, the limiting block extrudes the clamping block by pulling the limiting plate, so that the clamping block slides under the limitation of the sliding plate, the limiting block can be pulled out after the clamping block reaches a proper position, a new limiting block is inserted into a corresponding groove, and the limiting plate is pushed to extrude the clamping block; finally, the clamping blocks are clamped in the corresponding grooves in the limiting blocks, the limiting plates can be replaced by pulling and pushing the limiting plates, the replacement mode is simple and rapid, additional tool assistance is not needed, and then the limiting plate replacement efficiency is improved; and the limiting stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transparent adhesive tape production equipment, in particular to an automatic limiting device. Background Art

[0002] Transparent tape is made from BOPP original film, which is subjected to high-voltage corona treatment to make one side rough, then coated with glue, and then divided into small rolls through strips. This is the tape we use in daily life. Transparent tape is composed of two parts: base material and adhesive. It connects two or more unconnected objects together through bonding, and its surface is coated with a layer of adhesive.

[0003] For example, a Chinese utility model patent (CN216889336U) discloses an automatic limiting device for the production of transparent tape, which records: "By providing a winding shaft, a fixed frame, a driving wheel, a movable plate, a sliding plate, a T-bar, a limiting plate and a wear-resistant layer, the situation in which manual limiting causes an increase in workload is avoided, thereby achieving the effect of automatic limiting of the production of transparent tape." It also records: "During the production process of existing transparent tape, the tape needs to be wound up. When the winding is about to be completed, the machine needs to be limited to stop the winding work, so that the tape can be cut. However, the existing machine requires manual intervention in the machine operation, which is very inconvenient and also increases the workload of the workers." Technical problems.

[0004] To sum up the above, it can be seen that in the prior art, a driving wheel is used to drive a limiting plate to intervene in the winding shaft to avoid manual limiting resulting in an increase in workload. However, this method has the following technical problems: However, in actual use of the device, as the wear-resistant layer is continuously consumed, the limiting plate associated with the wear-resistant layer needs to be replaced, and the device does not have a structure that facilitates the replacement of this part of the structure. For this reason, this application proposes an automatic limiting device to provide a new technical solution to solve the technical problems mentioned in the above patents. Utility Model Content

[0005] Based on this, it is necessary to provide an automatic limiting device to address the above technical problems. By pulling the limiting plate, the limiting block squeezes the card block, and then the card block slides under the restriction of the sliding plate. After reaching the appropriate position, the limiting block can be pulled out, and then the new limiting block is inserted into the corresponding groove, and the limiting plate is pushed to squeeze the card block, and finally the card block is stuck in the corresponding groove on the limiting block. The limiting plate can be replaced by pulling and pushing the limiting plate. The replacement method is simple and fast, and does not rely on additional tools to assist, thereby improving the efficiency of replacing the limiting plate. The support rod is inserted into the interior of the sliding plate to support the limiting plate, thereby improving the stability of the limit.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The invention discloses an automatic limiting device, which is applied to the automatic limiting device of a reel during the processing of transparent adhesive.

[0008] The automatic limiting device specifically includes:

[0009] A device housing, wherein limit mechanisms are respectively provided on both sides of the device housing, and heat dissipation mechanisms are respectively provided on the two limit mechanisms. A protective door is detachably connected to the outside of the device housing by bolts, and a winding shaft is rotatably connected to the inner wall of the device housing;

[0010] The limiting mechanism includes a driving motor, a rotating rod, a fixed column, a driving assembly, and a disassembly assembly. The driving motor is fixedly installed on the outer wall of the device housing, the output end of the driving motor is fixedly connected to the rotating rod, the rotating rod is rotatably connected to the inner wall of the device housing, the inner wall of the device housing is fixedly connected to the fixed column, and the end of the rotating rod away from the driving motor is rotatably connected to the inner wall of the fixed column.

[0011] As a preferred embodiment of the automatic limiting device provided by the present invention, the driving assembly includes a driving gear fixedly connected to the outer wall of the rotating rod and located outside the device housing, the inner wall of the device housing is rotatably connected to a threaded sleeve, the outer wall of the threaded sleeve is fixedly connected to a driven gear, the driven gear is meshed with the outer wall of the driving gear, the inner wall of the threaded sleeve is threadedly connected to a threaded rod, one end of the threaded rod located inside the device housing is fixedly connected to a sliding plate, the upper and lower sides of the inner wall of the device housing are respectively fixedly connected to a limiting shell, and the upper and lower ends of the sliding plate are respectively slidably connected to the inside of the limiting shell.

[0012] As a preferred embodiment of the automatic limit device provided by the utility model, the disassembly assembly includes a plurality of limit blocks inserted into the inner wall of the sliding plate, the inner wall of the sliding plate and the upper and lower sides of the limit block are respectively fixedly connected with springs, and the ends of the two springs close to the limit blocks are respectively fixedly connected with clamping blocks, the clamping blocks are slidably connected to the inner wall of the sliding plate, the clamping blocks are clamped to the outer wall of the limit block, and the end of the limit block located outside the sliding plate is fixedly connected to the limit plate, and the side of the limit plate close to the sliding plate is fixedly connected to a support rod, and the support rod is inserted into the interior of the sliding plate.

[0013] As a preferred embodiment of the automatic limiting device provided by the present invention, the heat dissipation mechanism includes a mounting plate, a heat dissipation component, and a transmission component, and the inner wall of the device housing is fixedly connected to the mounting plate.

[0014] As a preferred embodiment of the automatic limiting device provided by the present invention, the heat dissipation assembly includes a rotating shaft rotatably connected to the inner wall of the mounting plate, and the outer wall of the rotating shaft is fixedly connected to the fan blade.

[0015] As a preferred embodiment of the automatic limiting device provided by the present invention, the transmission assembly includes a first bevel gear fixedly connected to the outer wall of the rotating rod, and the outer wall of the rotating shaft is fixedly connected to a second bevel gear, and the second bevel gear is engaged with the outer wall of the first bevel gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The automatic limit device provided by the utility model pulls the limit plate so that the limit block squeezes the card block, thereby making the card block slide under the restriction of the sliding plate. After reaching the appropriate position, the limit block can be pulled out, and then the new limit block is inserted into the corresponding groove, and the limit plate is pushed to squeeze the card block, and finally the card block is stuck in the corresponding groove on the limit block. The limit plate can be replaced by pulling and pushing the limit plate. The replacement method is simple and fast, and does not rely on additional tools to assist, thereby improving the efficiency of replacing the limit plate. The support rod is inserted into the interior of the sliding plate to support the limit plate, thereby improving the stability of the limit.

[0018] The automatic limit device provided by the utility model can control the sliding plate to move toward the position of the winding shaft by driving the rotation of the rotating rod through the driving motor, thereby limiting the winding shaft. In this process, the rotation of the rotating rod can drive the rotating shaft to rotate accordingly through the first bevel gear and the second bevel gear, thereby driving the fan blades to rotate accordingly, thereby driving the air flow inside the device shell to dissipate heat to the limit plate and the winding shaft, reducing the wear of the limit plate and damage to the limit shell caused by the excessive heat generated when the limit shell and the limit plate rub against each other, thereby extending the service life of the limit shell and the limit plate, thereby reducing the use cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the solutions in the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the automatic limit device provided by the utility model;

[0021] Figure 2 A schematic diagram of the internal structure of the housing of the automatic limit device provided by the utility model;

[0022] Figure 3 This is an enlarged schematic diagram of the internal structure of the device housing of the automatic limit device provided by the utility model;

[0023] Figure 4 The automatic limiting device provided by the utility model Figure 3 A magnified view of middle A;

[0024] Figure 5 A schematic diagram of the internal structure of the sliding plate of the automatic limiting device provided by the utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of part of the device shell of the automatic limit device provided by the utility model.

[0026] The markings in the figure are as follows:

[0027] 1. Device housing; 2. Protective door; 3. Winding shaft; 4. Limiting mechanism; 5. Heat dissipation mechanism; 6. Driving motor; 7. Rotating rod; 8. Driving gear; 9. Driven gear; 10. Threaded sleeve; 11. Threaded rod; 12. Sliding plate; 13. Limiting shell; 14. Limiting block; 15. Spring; 16. Block; 17. Limiting plate; 18. Support rod; 19. Fixed column; 20. First bevel gear; 21. Mounting plate; 22. Rotating shaft; 23. Second bevel gear; 24. Fan blade. DETAILED DESCRIPTION

[0028] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0029] As described in the background art, in actual use, as the wear-resistant layer is continuously consumed, the limit plate associated with the wear-resistant layer needs to be replaced, but the device does not have a structure that facilitates replacement of this part of the structure.

[0030] In order to solve this technical problem, the utility model provides an automatic limiting device, which is applied to the automatic limiting device of the reel during the processing of transparent adhesive.

[0031] Specifically, please refer to Figure 1-Figure 3 , the automatic limit device specifically includes:

[0032] The device comprises a housing 1, with limit mechanisms 4 provided on both sides of the housing 1, heat dissipation mechanisms 5 provided on the two limit mechanisms 4, a protective door 2 detachably connected to the outside of the housing 1 by bolts, and a reel 3 rotatably connected to the inner wall of the housing 1;

[0033] The limiting mechanism 4 includes a drive motor 6, a rotating rod 7, a fixed column 19, a drive assembly, and a disassembly assembly. The drive motor 6 is fixedly installed on the outer wall of the device housing 1, and the output end of the drive motor 6 is fixedly connected to the rotating rod 7. The rotating rod 7 is rotatably connected to the inner wall of the device housing 1. The inner wall of the device housing 1 is fixedly connected to the fixed column 19, and the end of the rotating rod 7 away from the drive motor 6 is rotatably connected to the inner wall of the fixed column 19.

[0034] The automatic limit device provided by the present utility model pulls the limit plate 17 so that the limit block 14 squeezes the card block 16, thereby making the card block 16 slide under the restriction of the sliding plate 12. After reaching the appropriate position, the limit block 14 can be pulled out, and then the new limit block 14 is inserted into the corresponding groove, and the limit plate 17 is pushed to squeeze the card block 16, and finally the card block 16 is stuck in the corresponding groove on the limit block 14. The limit plate 17 can be replaced by pulling and pushing the limit plate 17. The replacement method is simple and fast, and does not rely on additional tools to assist, thereby improving the efficiency of replacing the limit plate 17. The support rod 18 is inserted into the interior of the sliding plate 12 to support the limit plate 17, thereby improving the stability of the limit.

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] Please refer to Figure 2-Figure 5 , an automatic limit device, comprising:

[0038] The driving assembly includes a driving gear 8 fixedly connected to the outer wall of the rotating rod 7 and located outside the device housing 1. The inner wall of the device housing 1 is rotatably connected to a threaded sleeve 10. The outer wall of the threaded sleeve 10 is fixedly connected to a driven gear 9. The driven gear 9 is engaged with the outer wall of the driving gear 8. The inner wall of the threaded sleeve 10 is threadedly connected to a threaded rod 11. One end of the threaded rod 11 located inside the device housing 1 is fixedly connected to a sliding plate 12. The upper and lower ends of the sliding plate 12 are set as T-shaped blocks, which slide inside the corresponding limiting shell 13. The groove of the limiting shell 13 for the sliding plate 12 to slide is a T-shaped groove adapted to the sliding plate 12. The upper and lower sides of the inner wall of the device housing 1 are respectively fixedly connected to the limiting shell 13, and the upper and lower ends of the sliding plate 12 are respectively slidably connected to the inside of the limiting shell 13.

[0039] The disassembly assembly includes a plurality of limit blocks 14 inserted into the inner wall of the sliding plate 12, and the inner wall of the sliding plate 12 and the upper and lower sides of the limit blocks 14 are respectively fixedly connected with springs 15, and the springs 15 are in a compressed state when used in the device. The two springs 15 are fixedly connected to a clamping block 16 at one end close to the limit block 14, and the bottom corners of the clamping block 16 are provided with chamfered corners to facilitate the clamping block 16 to be inserted into and out of the groove of the limit block 14, and the clamping block 16 is slidably connected to the inner wall of the sliding plate 12, and the clamping block 16 is clamped to the outer wall of the limit block 14. One end of the limit block 14 located outside the sliding plate 12 is fixedly connected to the limit plate 17, and the side of the limit plate 17 away from the support rod 18 is provided with a wear-resistant layer to reduce the replacement frequency of the limit plate 17, and the side of the limit plate 17 close to the sliding plate 12 is fixedly connected to the support rod 18, and the support rod 18 is inserted into the interior of the sliding plate 12.

[0040] When the reel 3 needs to be limited by the above-mentioned structural design, the driving motor 6 is controlled to drive the rotating rod 7 to rotate, thereby driving the driving gear 8 to rotate accordingly. The driving gear 8 can drive the driven gear 9 to rotate, thereby driving the threaded sleeve 10 to rotate inside the device housing 1. The rotation of the threaded sleeve 10 causes the threaded rod 11 to drive the sliding plate 12 to slide inside the limiting shell 13 under the restriction of the sliding plate 12 and the limiting shell 13. The sliding plate 12 is controlled to be close to the reel 3, so that the limiting plate 17 can be brought into contact with the reel 3, thereby limiting the reel 3. When the limiting plate 17 needs to be replaced, the limiting plate 17 can be pulled to drive the limiting block 14 to move toward the sliding plate 12 As the limiting block 14 is pushed, the blocking block 16 can finally be stuck in the limiting block 14 under the action of the elastic force of the spring 15, that is, the replacement of the limiting block 14 is completed.

[0041] Example 2:

[0042] The automatic limit device provided in Example 1 is further optimized. Specifically, Figure 6 As shown, the heat dissipation mechanism 5 includes a mounting plate 21, a heat dissipation component, and a transmission component. The inner wall of the device housing 1 is fixedly connected with the mounting plate 21, and the mounting plate 21 supports the rotating shaft 22 to ensure the stability of the device.

[0043] The heat dissipation component includes a rotating shaft 22 rotatably connected to the inner wall of the mounting plate 21, and the outer wall of the rotating shaft 22 is fixedly connected with a fan blade 24. The rotation of the fan blade 24 can drive the flow of air, and the flowing air can take away part of the heat on the winding shaft 3 and the limiting plate 17. The air carrying heat can exchange gas with the outside world through the ventilation window on the device housing 1.

[0044] The transmission assembly includes a first bevel gear 20 fixedly connected to the outer wall of the rotating rod 7 , a second bevel gear 23 fixedly connected to the outer wall of the rotating shaft 22 , and the second bevel gear 23 meshes with the outer wall of the first bevel gear 20 .

[0045] Through the above-mentioned structural design, as the driving motor 6 drives the rotating rod 7 to rotate, the rotating rod 7 will drive the first bevel gear 20 to rotate, and the rotation of the first bevel gear 20 will drive the second bevel gear 23 to rotate accordingly. The rotation of the second bevel gear 23 causes the rotating shaft 22 to rotate accordingly, thereby driving the fan blades 24 to rotate accordingly, thereby driving the air flow inside the device housing 1. The flowing air blows toward the winding shaft 3 and the limiting plate 17, thereby taking away part of the heat generated during the contact between the winding shaft 3 and the limiting plate 17. The air carrying heat is exchanged with the outside world through the device housing 1, thereby completing the heat dissipation treatment.

Claims

1. An automatic limit device, comprising a device housing (1), characterized in that: Limiting mechanisms (4) are respectively provided on both sides of the device housing (1), and heat dissipation mechanisms (5) are respectively provided on the two limiting mechanisms (4). A protective door (2) is detachably connected to the outside of the device housing (1) via bolts, and a reeling shaft (3) is rotatably connected to the inner wall of the device housing (1); The limiting mechanism (4) comprises a driving motor (6), a rotating rod (7), a fixing column (19), a driving assembly, and a disassembly assembly; the driving motor (6) is fixedly mounted on the outer wall of the device housing (1); the output end of the driving motor (6) is fixedly connected to the rotating rod (7); the rotating rod (7) is rotatably connected to the inner wall of the device housing (1); the inner wall of the device housing (1) is fixedly connected to the fixing column (19); and the end of the rotating rod (7) away from the driving motor (6) is rotatably connected to the inner wall of the fixing column (19).

2. The automatic limiting device according to claim 1, characterized in that: The driving assembly comprises a driving gear (8) fixedly connected to the outer wall of the rotating rod (7) and located outside the device housing (1); the inner wall of the device housing (1) is rotatably connected to a threaded sleeve (10); the outer wall of the threaded sleeve (10) is fixedly connected to a driven gear (9); the driven gear (9) is meshed with the outer wall of the driving gear (8); the inner wall of the threaded sleeve (10) is threadedly connected to a threaded rod (11); one end of the threaded rod (11) located inside the device housing (1) is fixedly connected to a sliding plate (12); the upper and lower sides of the inner wall of the device housing (1) are respectively fixedly connected to a limiting shell (13); the upper and lower ends of the sliding plate (12) are respectively slidably connected to the inside of the limiting shell (13).

3. The automatic limiting device according to claim 2, characterized in that: The disassembly assembly comprises a plurality of limiting blocks (14) plugged into the inner wall of the sliding plate (12), the inner wall of the sliding plate (12) and the upper and lower sides of the limiting blocks (14) are respectively fixedly connected with springs (15), one end of the two springs (15) close to the limiting blocks (14) is respectively fixedly connected with a clamping block (16), the clamping block (16) is slidably connected to the inner wall of the sliding plate (12), the clamping block (16) is clamped to the outer wall of the limiting block (14), the end of the limiting block (14) located outside the sliding plate (12) is fixedly connected to a limiting plate (17), the side of the limiting plate (17) close to the sliding plate (12) is fixedly connected with a support rod (18), and the support rod (18) is plugged into the interior of the sliding plate (12).

4. The automatic limiting device according to claim 1, characterized in that: The heat dissipation mechanism (5) comprises a mounting plate (21), a heat dissipation component, and a transmission component. The mounting plate (21) is fixedly connected to the inner wall of the device housing (1).

5. The automatic limiting device according to claim 4, characterized in that: The heat dissipation assembly comprises a rotating shaft (22) rotatably connected to the inner wall of the mounting plate (21), and a fan blade (24) is fixedly connected to the outer wall of the rotating shaft (22).

6. The automatic limiting device according to claim 5, characterized in that: The transmission assembly comprises a first bevel gear (20) fixedly connected to the outer wall of the rotating rod (7); a second bevel gear (23) is fixedly connected to the outer wall of the rotating shaft (22); and the second bevel gear (23) is meshed with the outer wall of the first bevel gear (20).

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