Device for preventing the movement of a film placing rod

Abstract

The utility model discloses a device that prevents the device that puts film pole from moving, including putting film pole, set up the material roller of putting film pole, still include the anti -run mechanism of setting in the both ends of putting film pole, the anti -run mechanism includes: baffle cover, baffle cover sliding connection in the outside of both ends of putting film pole, the stirring cover, the stirring cover sliding connection in the inside of both ends of putting film pole, the tightener box, the tightener box fixed connection in the inside of baffle cover, sliding resistance iron, sliding resistance iron fixed connection in the outside of stirring cover, cylindrical resistance iron, cylindrical resistance iron set up in the both sides of tightener box. The utility model discloses through setting the tightener box and sliding resistance iron of relative sliding between baffle cover and stirring cover, when material roller slides to both sides, material roller pushes baffle cover to slide, drives sliding resistance iron to slide in tightener box to make the maximum width of sliding resistance iron contact with cylindrical resistance iron, extrude cylindrical resistance iron to extend tightener box, make cylindrical resistance iron contact with putting film pole and form tight structure.

Description

Technical Field

[0001] This utility model relates to the field of concave-convex shaft locking technology, and in particular to a device for preventing the film-releasing rod from moving. Background Technology

[0002] A film-laying rod is a rod-shaped tool used to place or support film. It has different applications in different fields. For example, in the packaging industry, film-laying rods are usually used for conveying and positioning packaging film; in the agricultural field, especially in greenhouse cultivation, film-laying rods are used to support and fix film to cover and protect crops. In the mechanical age, in order to improve the efficiency of film-laying rods, most of them are now driven by motors. A film-laying pole typically consists of a pole body and a support structure. The pole body can be made of metal, plastic, or other sturdy and durable materials and is used to support the film, while the support structure is used to fix the film-laying pole in the desired position.

[0003] The existing film-releasing rod does not use a limiting mechanism to prevent it from moving during use. However, the limiting process can easily cause wear on the edges of the film-releasing rod, and the tension switching effect is poor.

[0004] A laminating roller structure for a laminating machine is disclosed in Chinese patent document CN206851554U. This laminating roller structure includes a mounting frame, a film mounting mechanism, and a film guiding mechanism. The film mounting mechanism includes a film mounting roller, a first guide rod, and two first limiting members, with a gap between the first guide rod and the film mounting roller for film passage. The film guiding mechanism includes a guide roller, a second guide rod, and two second limiting members, with a gap between the second guide rod and the guide roller for film passage. By rotating the guide rod relative to the guide roller, the distance between the guide rod and the guide roller in a direction perpendicular to the film conveying plane can be adjusted to regulate the film conveying tension. Furthermore, when the film widths are different, adjusting the interval between the two limiting members matches the film width, allowing the limiting members to function properly in limiting the film and preventing film deviation, thus ensuring normal film laying and greatly improving laying efficiency. However, the limiting structure of this laminating roller structure is inconvenient for adjustment and tensioning.

[0005] To address the shortcomings of the existing technology, providing a device to prevent the film-releasing rod from shifting is a problem worthy of research. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing film-releasing rod limiting mechanism, which has poor tension switching effect, and to provide a device to prevent the film-releasing rod from moving around, thereby achieving the technical effect of smooth switching between tensioning and loosening of the film-releasing rod.

[0007] The objective of this utility model is achieved through the following technical solution: A device for preventing film feeding rod from shifting, comprising a film feeding rod, a material roller disposed on the film feeding rod, and anti-shifting mechanisms disposed at both ends of the film feeding rod, wherein the anti-shifting mechanisms include: A baffle sleeve, which is slidably connected to the outer sides of both ends of the film-dispensing rod; A sliding sleeve is slidably connected to the inner sides of both ends of the film-dispensing rod; A tensioning box, which is fixedly connected to the inner side of the baffle sleeve; A sliding stop, which is fixedly connected to the outside of the actuating sleeve; Cylindrical stop irons are disposed on both sides of the tension box; The sliding stop is provided with inclined surfaces on both sides, and the sliding stop is slidably connected to the inside of the tensioning box.

[0008] Optionally, the maximum width of the sliding stop is equal to the inner width of the tension box. The wider end of the sliding stop is closer to the direction of the actuating sleeve. When the sliding stop is normally placed in the tension box, the position of the cylindrical stop corresponds to the position of the inclined surface of the sliding stop. The outer side of the tension box is in contact with the film feeding rod. The baffle sleeve pushes the connected sliding stop to slide in the tension box, so that the maximum width of the sliding stop contacts the cylindrical stop, squeezing the cylindrical stop out of the tension box, so that the cylindrical stop contacts the film feeding rod to form a tensioning structure, thereby tightening and fixing the baffle sleeve and the actuating sleeve, intercepting the outward sliding material roller, and realizing the anti-slip function.

[0009] Optionally, a first spring is fixedly connected to one end of the sliding stop near the baffle sleeve. When the first spring is extended, the end of the sliding stop with the maximum width contacts the inner wall of the tension box. After tensioning is completed, the first spring can push the sliding stop to reset, thereby releasing the tension box from the tensioned state, which facilitates the overall position adjustment of the anti-slip mechanism.

[0010] Optionally, a second spring is fixedly connected between the baffle sleeve and the actuating sleeve. The second spring is a compression spring. After tensioning, the second spring can push the baffle sleeve and the actuating sleeve back to their original distance, releasing the tension and realizing a smooth and automatic switching between the tensioned and relaxed states of the anti-slip mechanism.

[0011] Optionally, the tensioning box has slots on both sides, the cylindrical stop iron is located inside the slots, and the outer side of the slots closes inward. The inner wall thickness of the tensioning box is smaller than the diameter of the cylindrical stop iron, and the tensioning is achieved by the friction between the cylindrical stop iron and the film-releasing rod.

[0012] Optionally, the coefficient of friction between the sliding stop and the film feeding rod is greater than 0.9. By limiting the coefficient of friction between the sliding stop and the film feeding rod, sufficient friction is provided between the two, which can firmly fix the material roller and prevent it from shifting when it is in a tensioned state.

[0013] Optionally, a sealing cover is fitted to the top of the tension box. The sealing cover is fixedly connected to the top of the tension box by bolts. After long-term use, the sealing cover can be opened to replace and clean the sliding stop and cylindrical stop inside, thus extending their service life.

[0014] 1. The device for preventing the film feeding rod from slipping is provided by setting a tension box and a sliding stop between the baffle sleeve and the actuating sleeve. When the material roller is disturbed and slides to both sides, the material roller pushes the baffle sleeve to slide. The baffle sleeve pushes the connected sliding stop to slide in the tension box, so that the maximum width of the sliding stop contacts the cylindrical stop, squeezing the cylindrical stop out of the tension box. The cylindrical stop then contacts the film feeding rod to form a tension structure, thereby tightening and fixing the baffle sleeve and the actuating sleeve, intercepting the material roller that is sliding outward, and realizing the function of preventing slipping.

[0015] 2. The device for preventing the film-releasing rod from shifting is provided with a second spring between the baffle sleeve and the actuating sleeve. This maintains the distance between the baffle sleeve and the actuating sleeve, ensuring that the tension box is normally in a relaxed state. After the actuating sleeve is pushed into the tensioned state, the second spring pushes the baffle sleeve and the actuating sleeve back to their original distance after tensioning is complete, releasing the tension. This achieves smooth and automatic switching between the tensioned and relaxed states of the anti-shifting mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the anti-slip mechanism of this utility model in a disassembled state; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a cross-sectional structural diagram of the anti-slip mechanism of this utility model.

[0017] In the diagram: 1. Film feeding rod; 2. Material roller; 3. Baffle sleeve; 4. Actuating sleeve; 5. Tensioning box; 6. Sliding stop; 7. Cylindrical stop; 8. First spring; 9. Second spring; 10. Sealing cover. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0019] like Figures 1 to 4 As shown, a device for preventing film feeding rod from shifting includes a film feeding rod 1, a material roller 2 disposed on the film feeding rod 1, and anti-shifting mechanisms disposed at both ends of the film feeding rod 1. The anti-shifting mechanisms include: Baffle sleeve 3 is slidably connected to the outer sides of both ends of the film-releasing rod 1; A sliding sleeve 4 is slidably connected to the inner sides of both ends of the film-dispensing rod 1; Tensioner box 5, tensioner box 5 is fixedly connected to the inner side of baffle sleeve 3; The sliding stop 6 is fixedly connected to the outside of the toggle sleeve 4; Cylindrical stop iron 7 is disposed on both sides of tension box 5; The sliding stop 6 has inclined surfaces on both sides and is slidably connected to the inside of the tension box 5.

[0020] like Figures 2 to 4 As shown, the maximum width of the sliding stop 6 is equal to the inner width of the tension box 5. The wider end of the sliding stop 6 is closer to the direction of the actuating sleeve 4. When the sliding stop 6 is normally placed in the tension box 5, the position of the cylindrical stop 7 corresponds to the position of the inclined surface of the sliding stop 6. The outer side of the tension box 5 is in contact with the film feeding rod 1. By setting the tension box 5 and the sliding stop 6 that slide relative to each other between the baffle sleeve 3 and the actuating sleeve 4, when the material roller 2 is disturbed and slides to both sides, when the material roller 2 pushes the baffle sleeve 3 to slide, the baffle sleeve 3 pushes the connected sliding stop 6 to slide in the tension box 5, so that the maximum width of the sliding stop 6 contacts the cylindrical stop 7, and the cylindrical stop 7 is squeezed out of the tension box 5, so that the cylindrical stop 7 contacts the film feeding rod 1 to form a tensioning structure, thereby tightening and fixing the baffle sleeve 3 and the actuating sleeve 4, intercepting the material roller 2 that slides outward, and realizing the anti-slip function. Furthermore, when it is necessary to adjust the position of the anti-slip mechanism, the synchronous sliding of the actuating sleeve 4 and the baffle sleeve 3 will not trigger the tension state, allowing it to slide and adjust its position on the film-releasing rod. When the actuating sleeve 4 is subjected to force alone, it can quickly tension to achieve the limit and anti-slip function.

[0021] like Figure 3 and Figure 4As shown, a first spring 8 is fixedly connected to one end of the sliding stop 6 near the baffle sleeve 3. When the first spring 8 is extended, the end of the sliding stop 6 with the maximum width contacts the inner wall of the tension box 5. By setting the first spring 8 at one end of the sliding stop 6, the sliding stop 6 is kept at a position far away from the baffle sleeve 3 for a long time. Thus, the sliding stop 6 does not squeeze the cylindrical stop 7 out of the tension box 5, and the tension box is in a loose state. After the tension is completed, the first spring 8 can push the sliding stop 6 to reset, thereby releasing the tension box 5 from the tension state, which facilitates the overall position adjustment of the anti-slip mechanism. Example 2

[0022] like Figure 2 As shown, a second spring 9 is fixedly connected between the baffle sleeve 3 and the actuating sleeve 4. The second spring 9 is a compression spring. By setting the second spring 9 between the baffle sleeve 3 and the actuating sleeve 4, the distance between the baffle sleeve 3 and the actuating sleeve 4 can be maintained, so that the tension box 5 is normally in a relaxed state. After the actuating sleeve 4 is pushed into the tensioned state, after the tension is completed, the second spring 9 can push the baffle sleeve 3 and the actuating sleeve 4 back to the original distance, releasing the tensioned state, and realizing a smooth and automatic switching between the tensioned and relaxed states of the anti-slip mechanism. Example 3

[0023] like Figure 3 As shown, slots are provided on both sides of the tension box 5, and the cylindrical stop iron 7 is located inside the slots. The outer side of the slots closes inward. The inner wall thickness of the tension box 5 is less than the diameter of the cylindrical stop iron 7. By providing slots on both sides of the tension box 5, the cylindrical stop iron 7 can extend out of the slots and disengage from the film-releasing rod 1. When the sliding stop iron 6 presses the cylindrical stop iron 7, the cylindrical stop iron 7 remains in the outward-extending state. The tension is achieved by utilizing the friction between the cylindrical stop iron 7 and the film-releasing rod 1. Furthermore, the outer side of the slot is brought inward to limit the cylindrical stop iron 7, preventing the cylindrical stop iron 7 from detaching from the tension box 5.

[0024] The coefficient of friction between the sliding stop 6 and the film feeding rod 1 is greater than 0.9. By limiting the coefficient of friction between the sliding stop 6 and the film feeding rod 1, sufficient friction is provided between the two. When in a tensioned state, the material roller can be firmly fixed to prevent slippage.

[0025] like Figures 2 to 4 As shown, a sealing cover 10 is assembled and connected to the top of the tension box 5. The sealing cover 10 is fixedly connected to the top of the tension box 5 by bolts. By setting the sealing cover 10 on the top of the tension box 5, the tension box 5 is sealed, reducing the influence of dust and other factors on the internal sliding stop. After long-term use, the sealing cover 10 can be opened to replace and clean the internal sliding stop 6 and cylindrical stop 7, thus extending their service life.

[0026] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A device for preventing film feeding rod from shifting, comprising a film feeding rod (1) and a material roller (2) disposed on the film feeding rod (1), characterized in that: It also includes anti-slip mechanisms disposed at both ends of the film-dispensing rod (1), the anti-slip mechanisms comprising: Baffle sleeve (3), the baffle sleeve (3) is slidably connected to the outer sides of both ends of the film-releasing rod (1); A sliding sleeve (4) is slidably connected to the inner sides of both ends of the film-releasing rod (1); Tensioner box (5), which is fixedly connected to the inner side of baffle sleeve (3); A sliding stop (6) is fixedly connected to the outside of the actuating sleeve (4); Cylindrical stop iron (7), the cylindrical stop iron (7) is disposed on both sides of tension box (5); The sliding stop (6) has inclined surfaces on both sides, and the sliding stop (6) is slidably connected to the inside of the tension box (5).

2. The device for preventing the film-dispensing rod from shifting according to claim 1, characterized in that: The maximum width of the sliding stop (6) is equal to the inner width of the tension box (5). The end of the sliding stop (6) with the larger width is closer to the direction of the actuating sleeve (4). When the sliding stop (6) is normally placed in the tension box (5), the position of the cylindrical stop (7) corresponds to the position of the inclined surface of the sliding stop (6). The outer side of the tension box (5) is in contact with the film release rod (1).

3. The device for preventing the film-dispensing rod from shifting according to claim 1, characterized in that: The sliding stop (6) is fixedly connected to a first spring (8) at one end near the baffle sleeve (3). When the first spring (8) is extended, the maximum width end of the sliding stop (6) contacts the inner wall of the tension box (5).

4. The device for preventing the film-dispensing rod from shifting according to claim 1, characterized in that: A second spring (9) is fixedly connected between the baffle sleeve (3) and the actuating sleeve (4), and the second spring (9) is a compression spring.

5. The device for preventing the film-dispensing rod from shifting according to claim 1, characterized in that: The tension box (5) has slots on both sides, the cylindrical stop iron (7) is located inside the slots, and the outer side of the slots closes inward. The inner wall thickness of the tension box (5) is less than the diameter of the cylindrical stop iron (7).

6. The device for preventing the film-dispensing rod from shifting according to claim 5, characterized in that: The coefficient of friction between the sliding stop (6) and the film-releasing rod (1) is greater than 0.

9.

7. The device for preventing the film-dispensing rod from shifting according to claim 1, characterized in that: The top of the tension box (5) is fitted with a sealing cover (10), which is fixedly connected to the top of the tension box (5) by bolts.

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