Film positioning mechanism

Abstract

The utility model provides a film positioning mechanism, which belongs to the technical field of film positioning and comprises a support and an adjusting component, a plurality of sliding grooves are arranged on two sides of the support, connecting components are arranged in the middle of the sliding grooves, and the adjusting component comprises a rotating column arranged between two correspondingly distributed connecting components. Adjusting plates are arranged on the sides, away from the middle of the support, of the rotating columns. According to the utility model, the wrinkle amount of the film during positioning can be effectively controlled, so that the film can be more smoothly attached to a film-coated object.

Description

TECHNICAL FIELD

[0001] The utility model relates to film positioning technical field, concretely relates to a film positioning mechanism. BACKGROUND

[0002] In the packaging, printing and other industries, the laminating machine is a commonly used equipment, which is used to cover a layer of film on the surface of the object to achieve the purpose of protection, beautification or moisture-proof. The main working principle of the laminating machine is to bond the film to the surface of the object by heating, pressing and other methods. In the laminating process, the positioning of the film is crucial, which directly affects the quality and efficiency of the laminating.

[0003] Traditional partial laminating machines usually adopt fixed film positioning mechanisms, which control the height and position of the film by positioning and lifting the two ends of the film. This mechanism can meet the basic needs of laminating to a certain extent. However, with the increasing demand for laminating quality in the packaging and printing industry, the limitations of traditional film positioning mechanisms gradually appear.

[0004] Specifically, since some positioning mechanisms only position the two ends of the film, and the material of the film is generally thin, the middle part of the film is prone to wrinkles when the two ends are pulled. Such wrinkles not only affect the appearance of the laminating, but also may affect the quality of the laminating. SUMMARY

[0005] Therefore, the utility model provides a film positioning mechanism, which can effectively control the amount of wrinkles of the film during positioning, so that the film can be more smoothly attached to the object to be laminated.

[0006] To solve the above technical problems, the utility model provides a film positioning mechanism, which includes a support and an adjusting assembly. Multiple sliding grooves are formed on both sides of the support, and a connecting assembly is arranged in the middle of each sliding groove. The adjusting assembly includes a rotating column rotatably connected between two corresponding connecting assemblies. The side of the rotating column away from the middle of the support is fixedly connected with an adjusting plate. The adjusting plate is inclined, with the lower end of the adjusting plate facing away from the rotating column and the higher end of the adjusting plate facing towards the rotating column. This design can effectively control the amount of wrinkles of the film during positioning, so that the film can be more smoothly attached to the object to be laminated.

[0007] The connecting assembly includes a sliding block slidingly connected to the middle of the sliding groove, and a torsional spring fixedly connected between the top of the sliding block and the adjacent adjusting assembly. The torsional spring provides a restoring force to ensure that the adjusting assembly can return to the initial position after being subjected to the tension of the film.

[0008] The connecting column is arranged between the sliding block and the rotating column, one side of the sliding block is fixedly connected with the connecting column, and the rotating column is rotationally connected with the connecting column; that is, the torsional spring can keep stable elasticity and restoring force during stretching and compression.

[0009] The adjusting assembly further comprises an adjusting frame fixedly connected to the end of the adjusting plate, and adjusting rollers are fixedly connected to the middle part of the adjusting frame; that is, the plate body of the adjusting plate is prevented from contacting the film during rotation, and damage to the film is reduced.

[0010] The middle part of the adjusting roller is rotationally connected with a rolling cylinder; that is, damage to the film is reduced.

[0011] The two sides of the adjusting frame are fixedly connected with limiting rods, the side of the support towards the inside of the support is fixedly connected with a plurality of limiting plates, and the ends of the limiting rods are located on the top of the limiting plates; that is, the downward movement distance of the adjusting assembly is limited, and the adjusting assembly is prevented from excessively moving downward to contact the film-covered object.

[0012] The top center of the inner wall of the sliding groove is fixedly connected with an extension column, and the extension end of the extension column is fixedly connected to the top of the adjacent sliding block; that is, the height of the adjusting assembly is adjusted through the synchronous extension of the extension column.

[0013] In summary, compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0014] 1. The middle part of the film pressed by the adjusting plate is simultaneously pulled to the two sides by the two adjusting plates, the middle part of the film is tightened, the wrinkle amount of the middle part of the film during positioning can be effectively controlled, and the film can be more smoothly attached to the film-covered object.

[0015] 2. During the film covering process, when the adjusting assembly needs to move downward to adjust the position and tension of the film, the limiting rod limits the maximum downward movement distance, and the adjusting assembly is prevented from contacting the film-covered object due to excessive downward movement and causing damage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the film positioning mechanism of the utility model;

[0017] Figure 2 It is a structure schematic view of the connecting assembly of the utility model;

[0018] Figure 3 It is a structure schematic view of the enlarged B of the utility model;

[0019] Figure 4 It is a structure schematic view of the adjusting assembly of the utility model.

[0020] BRIEF DESCRIPTION OF DRAWINGS:

[0021] 100. Bracket; 101. Slide groove; 102. Limiting rod; 103. Limiting plate; 104. Telescopic column;

[0022] 200. Adjustment component; 201. Rotating column; 202. Adjusting plate; 203. Adjusting frame; 204. Adjusting roller; 205. Rolling drum;

[0023] 300. Connecting component; 301. Slider; 302. Torsion spring; 303. Connecting post; Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figures 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] like Figures 1-4 As shown: This embodiment provides a film positioning mechanism, including a bracket 100 and an adjustment component 200. The bracket 100 has multiple sliding grooves 101 on both sides. A connecting component 300 is provided in the middle of the sliding groove 101. The adjustment component 200 includes a rotating column 201 rotatably connected between two correspondingly distributed connecting components 300. An adjustment plate 202 is fixedly connected to the side of the rotating column 201 away from the middle of the bracket 100. The adjustment plates 202 are all inclined. The lower end of the adjustment plate 202 faces the side away from the rotating column 201, and the higher end of the adjustment plate 202 faces the side close to the rotating column 201.

[0026] When laminating, the object to be laminated is placed in the middle of the support 100. At this time, the film is initially positioned above the object by the external equipment. By driving the connecting component 300 to move synchronously down in the slide 101, the adjusting component 200 can be moved down as a whole. As the adjusting component 200 moves down as a whole, the rotating column 201 drives the adjusting plate 202 to move down as well. Finally, the bottom of the adjusting plate 202 contacts the top of the film, and the film is squeezed down by the bottom of the adjusting plate 202. When the bottom of the adjusting plate 202 drives the film down to a certain position, the movement can be stopped to fix the position of the film.

[0027] In this process, the adjusting plate 202 constantly receives tension from the film and moves as the tension increases. Specifically, since the adjusting plates are all arranged obliquely, when the bottom of the adjusting plate 202 is pressed, it will drive the rotating column 201 to rotate synchronously. Guided by the initial position of the adjusting plate 202, when the adjusting plate 202 rotates upward with the rotating column 201 as the center, the bottoms of the two adjusting plates 202 will move away from each other in opposite directions. In this way, the middle part of the film pressed by the adjusting plate 202 will be synchronously pulled tight to both sides, and the middle part of the film will be tightened, so that the amount of wrinkles in the middle part of the film can be effectively controlled when positioning, so that the film can be more smoothly attached to the object to be coated.

[0028] The slider 301 is as shown in Figure 2 ,

[0029] The connecting assembly 300 includes a slider 301 slidingly connected to the middle part of the sliding groove 101, and a torsional spring 302 fixedly connected between the top of the slider 301 and the adjacent adjusting plate 202.

[0030] By driving the slider 301 to slide in the sliding groove 101, the movement of the adjusting assembly can be driven. When the film contacts the bottom of the adjusting plate 202 and generates tension, the adjusting plate 202 will be subjected to a downward force, which will cause one side of the torsional spring 302 to be compressed. With the rotation of the adjusting plate 202, the torsional spring 302 stores energy. When the tension of the film decreases or disappears, the energy stored in the torsional spring 302 will be released, helping the adjusting plate 202 to return to the initial position and complete the reset of the adjusting plate 202.

[0031] The connecting column 303 is as shown in Figure 2 ,

[0032] The connecting column 303 is arranged between the slider 301 and the rotating column 201, one side of the slider 301 is fixedly connected with the connecting column 303, and the rotating column 201 is rotationally connected with the connecting column 303. The diameter of the connecting column 303 is smaller than that of the torsional spring 302, and the axial direction of the torsional spring 302 is consistent with that of the connecting column 303.

[0033] The connecting column 303 can guide the middle part of the torsional spring 302, avoiding the bending or deformation of the torsional spring 302 due to the lack of guidance and support of the middle part of the torsional spring 302, so as to ensure that the torsional spring 302 can maintain stable elasticity and restoring force during stretching and compression.

[0034] The adjusting frame 203 is as shown in Figure 1 , 3 , 4,

[0035] The adjustment assembly also includes an adjustment frame 203 fixedly connected to the end of the adjustment plate 202. An adjustment roller 204 is fixedly connected to the middle of the adjustment frame 203. The bottom of the adjustment roller 204 is lower than the bottom of the adjustment frame 203.

[0036] The length of the adjustment component can be extended by the adjustment frame 203, and the component that finally contacts the film becomes the adjustment roller 204. The shape of the column of the adjustment roller 204 can reduce unnecessary contact between the adjustment component and the film, and prevent the plate of the adjustment plate 202 from contacting the film during rotation, which would cause damage to the film.

[0037] 205 Rolling Blower Figure 3 , 4 As shown,

[0038] Each adjusting roller 204 has a rotatable connecting cylinder 205 at its center, and the diameter of the cylinder 205 is larger than the diameter of the adjusting roller 204.

[0039] The rotating roller 205 makes the contact between the adjustment component and the film smoother. The roller 205 can rotate and move during the contact with the film, avoiding the adjustment component from pulling or rubbing the film when moving, thereby reducing damage to the film and improving the service life of the film.

[0040] Limit rod 102 Figure 1 , 3 As shown in Figure 4,

[0041] Limiting rods 102 are fixedly connected to both sides of the adjusting frame 203. The axial direction of the limiting rods 102 is consistent with the axial direction of the adjusting roller 204. Multiple limiting plates 103 are fixedly connected to the side of the bracket 100 facing the inside of the bracket 100. The ends of the limiting rods 102 are all located at the top of the limiting plates 103. The edge of the limiting plate 103 near the bracket 100 is located below the middle of the adjacent limiting rods 102.

[0042] During the lamination process, when the adjustment component needs to move down to adjust the position and tension of the film, the limit rod 102 will limit its maximum downward movement to prevent the adjustment component from contacting the object being laminated due to excessive downward movement and causing damage.

[0043] Telescopic column 104 Figure 1 As shown,

[0044] The inner wall of the slide 101 is fixedly connected to the top center of each telescopic column 104, and the telescopic ends of the telescopic columns 104 are fixedly connected to the top center of the adjacent sliders 301.

[0045] The height of the adjustment component can be adjusted by controlling the synchronous extension and retraction of the telescopic column 104, thereby adapting to films of different thicknesses and materials.

[0046] In addition, it also needs to be explained that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles described in the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A film positioning mechanism, characterized by: The utility model provides an adjustable support, including support (100) and adjustment assembly (200), both sides of support (100) are all seted up with a plurality of sliding slot (101), the middle part of sliding slot (101) is provided with connecting assembly (300), adjustment assembly (200) includes the rotation column (201) of setting between two corresponding distribution connecting assembly (300), the side of rotation column (201) away from the middle part of support (100) is all provided with adjusting plate (202).

2. A film positioning mechanism as claimed in claim 1, characterized in that: Connecting assembly (300) includes the sliding block (301) of setting in the middle part of sliding slot (101), the top of sliding block (301) is provided with torsional spring (302) with adjacent adjustment assembly (200).

3. A film positioning mechanism as claimed in claim 2, wherein: The connecting column (303) is arranged between the sliding block (301) and the rotating column (201).

4. A film positioning mechanism as claimed in claim 1, wherein: The adjustment assembly further comprises an adjusting frame (203) arranged at the end of the adjusting plate (202), and the middle part of the adjusting frame (203) is provided with an adjusting roller (204).

5. A film positioning mechanism as claimed in claim 4, wherein: The middle part of the adjusting roller (204) is provided with a rolling cylinder (205).

6. A film positioning mechanism as claimed in claim 4, wherein: Both sides of the adjusting frame (203) are provided with a limiting rod (102), and one side of the support (100) is provided with a plurality of limiting plates (103). The end of the limiting rod (102) is located on the top of the limiting plate (103).

7. A film positioning mechanism as claimed in claim 1, wherein: The middle part of the sliding slot (101) is provided with a telescopic column (104), and the telescopic end of the telescopic column (104) is arranged in the middle part of the adjacent sliding block (301).

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