Limiting device for production of wrapping film

Abstract

The utility model discloses a limit device for producing a wrapping film, which comprises a support frame, a sleeve joint is fixed at the top end of the support frame, a fixed cylinder and a mounting cylinder are respectively mounted in a connector of the sleeve joint and are parallel to each other, a limit adjusting plate is arranged between the fixed cylinder and the mounting cylinder, a movable cavity is formed in the mounting cylinder, and the movable cavity is communicated with the movable cavity. A sliding adjusting piece and a sliding matching piece are arranged in the movable cavity, inclined guide faces are arranged on the top face of the sliding adjusting piece and the bottom face of the sliding matching piece, and the inclined guide faces on the sliding adjusting piece and the sliding matching piece are matched with each other. The inclined guide face of the top face of the sliding adjusting piece is matched with the inclined guide face of the bottom face of the sliding matching piece to form an inclined sliding mechanism, and the distance between the limiting adjusting plate and the fixing barrel above is adjusted by pulling out and pushing in the sliding adjusting piece so as to adapt to winding films of different thicknesses and change of the distance between the limiting adjusting plate and the fixing barrel.

Description

Technical Field

[0001] This utility model relates to the field of stretch film production, specifically a limiting device for stretch film production. Background Technology

[0002] Stretch film, also known as PE stretch film, has high tensile strength, tear resistance, and good self-adhesion, thus enabling it to wrap objects into a whole, preventing them from scattering or collapsing during transportation. This film has excellent transparency, making the wrapped objects look beautiful and elegant, and also making them waterproof, dustproof, and damage-proof. It is widely used in pallet packaging for goods. During the production process of stretch film, in order to prevent the stretch film from shifting, piling up, or loosening during production or winding, a limiting device is required to limit the stretch film.

[0003] In the prior art, publication number "CN219669635U" discloses a film pressing device for stretch film production, relating to the field of stretch film technology. It includes a base, a support frame fixedly connected to the outer wall of the base, a support plate fixedly connected to the outer wall of the support frame, and a first motor fixedly connected to the outer wall of the support plate. The output shaft of the first motor is fixedly connected to a stretch film roller via a coupling. A telescopic rod is fixedly connected to the outer wall of the support frame, a limit frame is fixedly connected to one end of the telescopic rod, and an annular limit plate is fixedly connected to one side of the limit frame. An adjustment component is fixedly connected to the outer wall of the base, and a pressure roller is bearing-connected to one side of the adjustment component. This invention achieves the effect of facilitating the limiting and pressing of the film, enabling the rolling motion of the stretch film. Furthermore, the use of the telescopic rod drives the annular limit plate to limit and position the stretch film, reducing the phenomenon of film flipping during rolling, thus achieving the effect of facilitating the limiting and clamping of the device.

[0004] However, existing technologies still have significant shortcomings. The limiting distance of traditional devices is usually fixed, making it difficult to flexibly adapt to different thicknesses of wrapping film and resulting in poor versatility. For wrapping film of different thicknesses, traditional adjustable devices have complex structures, requiring replacement of parts or complex adjustments, which increases the difficulty of operation. Utility Model Content

[0005] The purpose of this invention is to provide a limiting device for stretch film production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a limiting device for stretch film production, comprising a support frame, a sleeve joint fixed to the top of the support frame, a fixed cylinder and an installation cylinder respectively installed in the interface of the sleeve joint, the fixed cylinder and the installation cylinder being parallel to each other, a limiting adjustment plate being provided between the fixed cylinder and the installation cylinder, a movable cavity being provided inside the installation cylinder, a sliding adjustment component and a sliding mating component being provided inside the movable cavity, the top surface of the sliding adjustment component and the bottom surface of the sliding mating component both being provided with inclined guide surfaces, and the inclined guide surfaces on the sliding adjustment component and the sliding mating component cooperating with each other.

[0007] Preferably, both the fixed cylinder and the mounting cylinder are cylindrical, and the top opening of the mounting cylinder is connected to the movable cavity, and the fixed cylinder is located at the top of the mounting cylinder.

[0008] Preferably, one end of the mounting cylinder has a pull-out opening, and the pull-out opening is connected to the movable cavity, and the sliding adjustment component can be pushed and pulled from the pull-out opening.

[0009] Preferably, the movable cavity is rectangular, and both the sliding adjustment component and the sliding mating component cooperate with the inner wall of the movable cavity.

[0010] Preferably, the top surface of the sliding mating component is fixed with a connector, and the connector is connected to the limiting adjustment plate, and the sliding mating component is located on the top surface of the sliding adjustment component.

[0011] Preferably, the top surface of the limiting adjustment plate is an arc surface, and the position of the limiting adjustment plate is aligned with the opening position of the top surface of the mounting cylinder.

[0012] Preferably, a limiting groove is formed in the movable cavity, a limiting slider is fixed on the surface of the sliding mating part, and the limiting slider and the limiting groove cooperate with each other and are slidably connected.

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

[0014] The inclined guide surface on the top surface of the sliding adjustment component and the inclined guide surface on the bottom surface of the sliding mating component cooperate to form an inclined sliding mechanism. When the sliding adjustment component is pulled outward, the sliding action of the inclined surface causes the sliding mating component and the limiting adjustment plate to descend together. When the sliding adjustment component is pushed inward, the sliding action of the inclined guide surface causes the sliding mating component and the limiting adjustment plate to rise together. By pulling out and pushing in the sliding adjustment component, the distance between the limiting adjustment plate and the upper fixed cylinder is adjusted to accommodate different thicknesses of stretch film. The change in the distance between the limiting adjustment plate and the fixed cylinder plays a limiting role for stretch film of different thicknesses, preventing the stretch film from shifting, piling up, or loosening during production. The structure is simple, and the distance of the limiting device can be adjusted quickly and easily, reducing replacement and adjustment time and improving production efficiency. The adjustment of the limiting distance can be completed simply by pulling out and pushing in the pull-out component, reducing manual intervention and making the entire limiting device highly versatile and adaptable. It can adapt to various specifications of stretch film without replacing parts. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the sliding adjustment component and the sliding mating component of this utility model;

[0019] Figure 5 This is a schematic diagram of the interior of the mounting cylinder of this utility model.

[0020] In the diagram: 1. Support frame; 2. Fixed cylinder; 3. Mounting cylinder; 4. Movable cavity; 5. Sliding adjustment component; 6. Sliding mating component; 7. Inclined guide surface; 8. Limit adjustment plate; 9. Connector; 10. Pull-out port; 11. Limit slider; 12. Limit slide groove; 13. Socket joint. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution:

[0023] Example 1: A limiting device for stretch film production: It includes a support frame 1, with a sleeve 13 fixed to the top of the support frame 1. A fixing cylinder 2 and an mounting cylinder 3 are respectively installed inside the interface of the sleeve 13, and the fixing cylinder 2 and the mounting cylinder 3 are parallel to each other. Further, the fixing cylinder 2 and the mounting cylinder 3 are both located inside the sleeve 13 at the top of the support frame 1. The sleeve 13 allows for the installation and fixing of both to the support frame 1, facilitating the installation of the entire structure on the stretch film production line. Both the fixing cylinder 2 and the mounting cylinder 3 are cylindrical, and the top opening of the mounting cylinder 3 communicates with the movable cavity 4. The fixing cylinder 2 is located at the top of the mounting cylinder 3. A limiting adjustment plate 8 is provided between the fixing cylinder 2 and the mounting cylinder 3. The top surface of the limiting adjustment plate 8 is arc-shaped, and the limiting adjustment plate 8... The position is aligned with the opening on the top surface of the mounting cylinder 3. The limiting device is mainly installed on the platform of the stretch film production device through the support frame 1, so that the size and height of the support frame 1 meet the normal production requirements. The limiting device mainly uses the limiting adjustment plate 8 and the fixed cylinder 2 to limit the stretch film. The stretch film is located in the gap between the limiting adjustment plate 8 and the fixed cylinder 2. The arc surface of the fixed cylinder 2 and the limiting adjustment plate 8 can limit the stretch film during the production and winding process to prevent the problems of displacement, accumulation or loosening. It should be noted that the position of the fixed cylinder 2 is fixed, while the height of the limiting adjustment plate 8 can be adjusted, thereby changing the distance between the limiting adjustment plate 8 and the fixed plate, so as to meet the limiting of stretch film of different thicknesses.

[0024] The mounting cylinder 3 has a rectangular cavity 4 inside, which contains a sliding adjustment component 5 and a sliding mating component 6. Both the sliding adjustment component 5 and the sliding mating component 6 mate with the inner wall of the cavity 4. The top surface of the sliding adjustment component 5 and the bottom surface of the sliding mating component 6 are provided with inclined guide surfaces 7, which engage with each other. A connector 9 is fixed to the top surface of the sliding mating component 6 and connects to a limiting adjustment plate 8. The sliding mating component 6 is located on the top surface of the sliding adjustment component 5. Both the sliding adjustment component 5 and the sliding mating component 6 are located within the rectangular cavity 4 inside the mounting cylinder 3. The rectangular shape of the rectangular cavity allows for limiting the movement of the sliding adjustment component 5 and the sliding mating component 6 within the cavity 4. The sliding adjustment component 5 and the sliding mating component 6 are adjacent to each other. Both have inclined guide surfaces 7 on one side, and the inclined guide surfaces 7 of both are mutually engaged. The limiting adjustment plate 8 is connected to the sliding fitting 6 through the connector 9. When adjusting the height of the limiting adjustment plate 8, simply pull the sliding adjustment piece 5 out of the movable cavity 4. At this time, the sliding fitting 6 will fall down by its own weight until it is in contact with the inclined guide surface 7 of the sliding adjustment piece 5 again. When the sliding adjustment piece 5 is pulled outward, the sliding action of the inclined surface causes the sliding fitting 6 and the limiting adjustment plate 8 to descend together. When the sliding adjustment piece 5 is pushed inward, the sliding action of the inclined guide surface 7 causes the sliding fitting 6 and the limiting adjustment plate 8 to rise together. By pulling out and pushing in the sliding adjustment piece 5, the distance between the limiting adjustment plate 8 and the upper fixed cylinder 2 is adjusted to accommodate different thicknesses of wrapping film. The change in the distance between the limiting adjustment plate 8 and the fixed cylinder 2 plays a limiting role for wrapping film of different thicknesses.

[0025] Example 2:

[0026] Based on Embodiment 1, one end of the mounting cylinder 3 has a pull-out port 10, and the pull-out port 10 is connected to the movable cavity 4. The sliding adjustment member 5 can be pushed and pulled from the pull-out port 10. To further explain, the pull-out port 10 at one end of the mounting cylinder 3 is connected to the movable cavity 4, and the sliding adjustment member 5 can be pushed and pulled from the position of the pull-out port 10.

[0027] A limiting groove 12 is provided in the movable cavity 4. A limiting slider 11 is fixed on the surface of the sliding mating part 6. The limiting slider 11 and the limiting groove 12 cooperate with each other and are slidably connected. Limiting sliders 11 are fixed on both sides of the sliding mating part 6. The limiting slider 11 has multiple sliding ends and cooperates with the limiting groove 12 on the inner wall of the mounting cylinder 3. This ensures that the limiting slider 11 will not protrude into the movable cavity 4, preventing it from affecting the sliding adjustment part 5 and the sliding mating part 6. When the sliding adjustment part 5 is pushed or pulled, the sliding mating part 6 slides in the movable cavity 4 according to the position change of the sliding adjustment part 5, thereby completing the adjustment of the limiting adjustment plate 8. It can be upgraded to be automated in the future. By adding drive devices such as motors or cylinders, the sliding adjustment plate 5 can be automatically adjusted, further improving production efficiency.

[0028] Working principle: The limiting device includes an installation cylinder 3, a sliding adjustment component 5, a sliding mating component 6, and a limiting adjustment plate 8. The installation cylinder 3 has a sliding cavity inside, and the sliding adjustment component 5 and the sliding mating component 6 move within the sliding cavity. The spacing of the limiting device is adjusted through the inclined guide structure. The limiting adjustment plate 8 is connected to the sliding mating component 6. The distance between the limiting adjustment plate 8 and the fixed cylinder 2 is adjusted by the displacement of the sliding adjustment component 5 to accommodate different thicknesses of the wrapping film. The inclined guide surfaces 7 cooperate with each other to form an inclined sliding mechanism. When the sliding adjustment component 5 is pulled outward, the sliding action of the inclined surface causes the sliding mating component 6 and the limiting adjustment plate 8 to descend together. When the sliding adjustment component 5 is pushed inward, the sliding action of the inclined guide surface 7 causes the sliding mating component 6 and the limiting adjustment plate 8 to rise together. By pulling out and pushing in the sliding adjustment component 5, the distance between the limiting adjustment plate 8 and the upper fixed cylinder 2 is adjusted to accommodate different thicknesses of the wrapping film and the change in the distance between the limiting adjustment plate 8 and the fixed cylinder 2.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiting device for winding film production, characterized by: The utility model relates to a support frame (1) is provided with sleeve joint (13) on the top, the interface of sleeve joint (13) is provided with fixed cylinder (2) and installation cylinder (3) respectively, and fixed cylinder (2) and installation cylinder (3) are parallel to each other, and the fixed cylinder (2) is equipped with the spacing adjusting plate (8) between installation cylinder (3), the inside of installation cylinder (3) is provided with movable cavity (4), and the movable cavity (4) is provided with sliding adjusting part (5) and sliding cooperation piece (6) respectively, the top surface of sliding adjusting part (5) and the bottom surface of sliding cooperation piece (6) are all equipped with inclined guide surface (7), and the inclined guide surface (7) on sliding adjusting part (5) and sliding cooperation piece (6) is mutually matched.

2. The limiting device for wrapping film production according to claim 1, characterized in that: The fixed cylinder (2) and installation cylinder (3) are cylindrical, and the top surface opening of installation cylinder (3) is communicated with movable cavity (4), and the fixed cylinder (2) is located at the top of installation cylinder (3).

3. The limiting device for wrapping film production according to claim 1, characterized in that: The one end of installation cylinder (3) is penetrated by pull-out opening (10), and pull-out opening (10) is communicated with movable cavity (4), and sliding adjusting part (5) can be pushed and pulled from pull-out opening (10).

4. The limiting device for wrapping film production according to claim 1, characterized in that: The movable cavity (4) is rectangular, and sliding adjusting part (5) and sliding cooperation piece (6) are matched with the inner wall of movable cavity (4).

5. The limiting device for wrapping film production according to claim 1, characterized in that: The top surface of sliding cooperation piece (6) is fixed with connecting head (9), and connecting head (9) is connected with spacing adjusting plate (8), and sliding cooperation piece (6) is located on the top surface of sliding adjusting part (5).

6. The limiting device for wrapping film production according to claim 1, characterized in that: The top surface of spacing adjusting plate (8) is arc surface, and the position of spacing adjusting plate (8) is aligned with the opening position of installation cylinder (3) top surface.

7. The limiting device for wrapping film production according to claim 1, characterized in that: The movable cavity (4) is provided with spacing sliding slot (12), and the surface of sliding cooperation piece (6) is fixed with spacing sliding block (11), and spacing sliding block (11) is matched with spacing sliding slot (12) and is slidably connected.

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