Self-adaptive pressing unit, film covering mechanism and automatic film covering and cutting equipment

Abstract

A self-adaptive pressing unit comprises a fixing frame, a rolling assembly, an elastic assembly, a guide assembly and an adjusting assembly. The fixing frame comprises a top plate erected above the conveying belt. The rolling assembly comprises a rolling frame and at least one roller, the rolling frame is elastically connected with the top plate and located below the top plate, the roller is rotatably installed on the rolling frame and located above the conveying belt, the roller is matched with the conveying belt to press the protective film and attach the protective film to the product, and the rolling assembly can do lifting motion below the top plate; the elastic assembly comprises a spring arranged between the rolling frame and the top plate. The guide assembly comprises a guide rod and a linear bearing, the linear bearing is arranged on the top plate, the lower end of the guide rod is fixedly connected with the rolling frame, and the upper end of the guide rod penetrates through the linear bearing; the adjusting assembly comprises an adjusting bolt, and the adjusting bolt is used for adjusting the downward pressing pressure of the roller. The utility model further provides a film covering mechanism and automatic film covering and cutting equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of film covering, in particular to an adaptive pressing unit, a film covering mechanism and an automatic film covering and cutting device. Background Art

[0002] At present, in the production process of electronic products, the film covering process is often carried out on parts such as the outer shell of the product to prevent the product from being contaminated, scratched or corroded during assembly, transportation or storage.

[0003] The film covering process is to cover a layer of film on the product. In the prior art, generally, a pressure roller device is used to press the film tightly on the surface of the product on the conveyor belt so that the film adheres to the product. Since the products have multiple specifications and sizes, and the thicknesses of the products are also different; however, most of the pressure roller devices do not have an adaptive adjustment pressing function. If the thickness of the product is small, the pressure roller device is not sufficient to press the film tightly on the surface of the product, resulting in bubbles between the product and the film, reducing the film covering effect and leading to a decrease in the product yield; if the thickness of the product is large, the pressure on the product by the pressure roller device is large, which may cause the product to deform or even be damaged, and at the same time, it may also cause wear of the rubber roller, not only reducing the product yield, but also affecting the production efficiency and increasing the production cost.

[0004] The pressure roller device without an adaptive adjustment pressing function is difficult to be applicable to products of different specifications, which causes great inconvenience in production, and the use conditions are too limited, thus increasing the production cost. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an adaptive pressing unit, a film covering mechanism and an automatic film covering and cutting device to solve the problem that the pressure roller device in the prior art does not have an adaptive adjustment pressing function.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An adaptive pressing unit is arranged above a transmission belt for conveying products, and includes a fixing frame, a rolling component, an elastic component, a guiding component and an adjusting component. The fixing frame includes a top plate erected above the transmission belt; the rolling component includes a rolling frame and at least one roller. The rolling frame is elastically connected to the top plate and is located below the top plate. The roller is rotatably installed on the rolling frame through a rotating shaft and is located above the transmission belt. The roller cooperates with the transmission belt to press and fit the protective film onto the product. The rolling component can perform a lifting movement below the top plate; the elastic component includes a spring arranged between the rolling frame and the top plate, and the upper and lower ends of the spring respectively abut against the top plate and the rolling frame; the guiding component includes a guiding rod and a linear bearing matched with the guiding rod. The linear bearing is arranged on the top plate and penetrates through the upper and lower surfaces of the top plate. The lower end of the guiding rod is fixedly connected to the rolling frame, and the upper end of the guiding rod extends towards the linear bearing and passes through the linear bearing; the adjusting component includes an adjusting bolt, which has a head and a screw rod fixedly connected to the head. The head is movably arranged above the top plate. The screw rod extends towards the direction close to the rolling frame and passes through the top plate, and the end of the screw rod is screwed to the rolling frame. The adjusting bolt is used to adjust the pressing pressure of the roller.

[0008] Further, the rolling frame includes a connecting plate and two mounting plates respectively arranged at both ends of the connecting plate. The mounting plates are provided with mounting holes matched with the rotating shaft, and both ends of the rotating shaft are respectively inserted into the two mounting holes.

[0009] Further, the elastic component further includes a connecting rod fixedly connected to the connecting plate. The connecting rod extends towards the direction close to the top plate and passes through the top plate. The spring is sleeved on the connecting rod, and the upper and lower ends of the spring respectively abut against the top plate and the connecting plate.

[0010] Further, the top plate is provided with a first through hole matched with the connecting rod, and the connecting rod passes through the first through hole and protrudes to the upper surface of the top plate.

[0011] Further, the lower end of the guiding rod is fixedly connected to the connecting plate, and the upper end of the guiding rod protrudes out of the upper surface of the linear bearing.

[0012] Further, the top plate is provided with a second through hole corresponding to the screw rod. The screw rod passes through the second through hole and the screw rod can perform a lifting movement along the second through hole. The end of the screw rod is screwed to the connecting plate. By rotating the adjusting bolt, the connecting plate can be driven to rise or fall.

[0013] Further, the adjusting component further includes a fastening nut, and the fastening nut is screwed to the screw rod and is located above the connecting plate.

[0014] Further, a pair of adjusting lugs are respectively arranged on the head and the fastening nut.

[0015] A film laminating mechanism includes a conveying unit and at least one of the above-mentioned adaptive pressing units. The conveying unit includes a transmission belt for conveying products. The adaptive pressing unit is arranged above the transmission belt, and the adaptive pressing unit cooperates with the conveying unit to attach the protective film to the products.

[0016] An automatic film laminating and cutting device includes a workbench, a loading mechanism, a feeding mechanism, a cutting mechanism, an unloading mechanism, and the above-mentioned film laminating mechanism. The feeding mechanism, the film laminating mechanism, the cutting mechanism, and the unloading mechanism are sequentially arranged on the workbench. The loading mechanism is arranged above the film laminating mechanism and is used to load the protective film for the film laminating mechanism. The feeding mechanism is used to provide products for the film laminating mechanism. The cutting mechanism is used to cut the protective film. The unloading mechanism is used to convey the products with the protective film attached.

[0017] The beneficial effects of an adaptive pressing unit, a film laminating mechanism, and an automatic film laminating and cutting device of the present utility model are as follows: Through the cooperation of the rolling component and the elastic component, the distance between the rolling component and the transmission belt can be changed under the elastic force of the spring. On the one hand, the adaptive pressing function is realized, which can ensure that the bubbles between the protective film and the products are squeezed out by sufficient extrusion force, thus ensuring the film laminating quality. On the other hand, it can adapt to products of different thicknesses, enabling the adaptive pressing unit to be applicable to a variety of products and reducing the equipment cost; Through the cooperation of the adjusting component and the rolling component, the tightness of the spring can be adjusted to realize the adjustment of the pressure exerted by the roller on the products; Through the cooperation of the guiding component and the rolling component, the rolling component moves stably along the guiding rod during the lifting process, thereby ensuring that the pressure exerted by the roller on the products is stable and uniform, improving the film laminating quality. It not only improves the product yield but also is applicable to a variety of products of different specifications, reducing the production cost. Description of the Drawings

[0018] Figure 1 It is a three-dimensional view of an adaptive pressing unit of the present utility model.

[0019] Figure 2 It is Figure 1 the three-dimensional exploded view of the shown adaptive pressing unit.

[0020] Figure 3 It is Figure 2 the enlarged three-dimensional view of the position A in

[0021] Figure 4 It is Figure 2 the enlarged three-dimensional view of the position B in

[0022] Figure 5 It is Figure 2 the three-dimensional exploded view of the shown rolling component.

[0023] Figure 6This is a three-dimensional view of a film laminating mechanism of the present utility model.

[0024] Figure 7 This is a schematic diagram of an automatic film laminating and cutting device of the present utility model. Specific embodiments

[0025] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0026] The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", etc. in the description and claims of the present utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the sake of clear expression of the technical solution and convenient description, and therefore cannot be construed as a limitation to the present application.

[0027] Please refer to Figures 1 - 3 , an adaptive pressing unit 1, which is arranged above the conveyor belt for conveying products, and includes a fixed frame 10, a rolling assembly 20, an elastic assembly 30, a guiding assembly 40 and an adjusting assembly 50. The fixed frame 10 includes a top plate 11 erected above the conveyor belt and two supporting members 12 respectively fixedly connected to both ends of the top plate 11.

[0028] The rolling assembly 20 includes a rolling frame 21 and at least one roller 22. The rolling frame 21 is elastically connected to the top plate 11 and is located below the top plate 11. The roller 22 is rotatably installed on the rolling frame 21 through a rotating shaft 221 and is located above the conveyor belt. The roller 22 cooperates with the conveyor belt to press and fit the protective film onto the product. The rolling assembly 20 can move up and down below the top plate 11. In this embodiment, the rolling assembly 20 includes two rollers 22, and the two rollers 22 are horizontally and parallelly installed on the rolling frame 21.

[0029] The elastic assembly 30 includes a spring 31 arranged between the rolling frame 21 and the top plate 11. The upper and lower ends of the spring 31 respectively abut against the top plate 11 and the rolling frame 21, and the spring 31 realizes the elastic connection between the rolling assembly 20 and the fixed frame 10. When performing film laminating processing, the distance between the roller 22 and the conveyor belt can be adaptively adjusted by the spring 31, ensuring that the bubbles between the protective film and the product are extruded by sufficient extrusion force and ensuring the film laminating quality.

[0030] The guiding assembly 40 includes a guiding rod 41 and a linear bearing 42 that cooperates with the guiding rod 41. The linear bearing 42 is disposed on the top plate 11 and penetrates the upper and lower surfaces of the top plate 11. The lower end of the guiding rod 41 is fixedly connected to the rolling frame 21, and the upper end of the guiding rod 41 extends toward the linear bearing 42 and passes through the linear bearing 42. The guiding assembly 40 functions as a guide. The linear bearing 42 can make the movement of the guiding rod 41 more stable, thereby ensuring that the rolling assembly 20 moves more stably during the lifting process.

[0031] The adjusting assembly 50 includes an adjusting bolt 51. The adjusting bolt 51 has a head 511 and a screw rod 512 fixedly connected to the head 511. The head 511 is movably disposed above the top plate 11. The screw rod 512 extends toward the rolling frame 21, passes through the top plate 11, and the end of the screw rod 512 is screwed to the rolling frame 21. The adjusting bolt 51 is used to adjust the pressing force of the roller 22. In addition, the head 511 can abut against the upper surface of the top plate 11 to prevent the rolling assembly 20 from detaching from the fixing frame 10.

[0032] As described above, for the adaptive pressing unit 1 proposed by the present utility model, through the cooperation of the rolling assembly 20 and the elastic assembly 30, the rolling assembly 20 can change the distance from the conveyor belt under the elastic force of the spring 31. On the one hand, the adaptive pressing function is realized, which can ensure that the bubbles between the protective film and the product are extruded by sufficient extrusion force, thereby ensuring the laminating quality. On the other hand, it can adapt to products of different thicknesses, enabling the adaptive pressing unit 1 to be applicable to a variety of products and reducing equipment costs; through the cooperation of the adjusting assembly 50 and the rolling assembly 20, the tightness of the spring 31 can be adjusted to adjust the pressure exerted by the roller 22 on the product; through the cooperation of the guiding assembly 40 and the rolling assembly 20, the rolling assembly 20 moves stably along the guiding rod 41 during the lifting process, thereby ensuring that the pressure exerted by the roller 22 on the product is stable and uniform, improving the laminating quality. The adaptive pressing unit 1 not only improves the product yield but also is applicable to a variety of products with different specifications, reducing the production cost.

[0033] Please refer to Figure 5 , the rolling frame 21 includes a connecting plate 211 and two mounting plates 212 respectively disposed at both ends of the connecting plate 211. The mounting plates 212 are provided with mounting holes 2121 that cooperate with the rotating shaft 221. Both ends of the rotating shaft 221 are respectively inserted into the two mounting holes 2121 to realize the rolling of the roller 22 on the rolling frame 21.

[0034] Please refer to Figure 1 and Figure 2 , the elastic component 30 further includes a connecting rod 32 fixedly connected to the connecting plate 211. The connecting rod 32 extends towards the top plate 11 and passes through the top plate 11. The spring 31 is sleeved on the connecting rod 32, and the upper and lower ends of the spring 31 respectively abut against the top plate 11 and the connecting plate 211.

[0035] More specifically, the top plate 11 is provided with a first through hole 111 that matches the connecting rod 32. The connecting rod 32 passes through the first through hole 111 and protrudes to the upper surface of the top plate 11. The connecting rod 32 can move up and down along the first through hole 111.

[0036] In this embodiment, the elastic component 30 includes a pair of connecting rods 32 symmetrically arranged along the axial direction of the rotating shaft 221. Correspondingly, each connecting rod 32 is sleeved with a spring 31. Such a setting can ensure that the rolling component 20 remains stable during the ascending or descending process, thereby ensuring that the pressure exerted by the roller 22 on the product is relatively stable.

[0037] Please refer to Figure 1 and Figure 2 , the lower end of the guide rod 41 is fixedly connected to the connecting plate 211. The upper end of the guide rod 41 protrudes from the upper surface of the linear bearing 42. The guide rod 41 can move up and down along the linear bearing 42.

[0038] In this embodiment, the guiding component 40 includes a pair of linear bearings 42 and a pair of guide rods 41. The pair of linear bearings 42 are symmetrically arranged on the top plate 11 along the axial direction of the rotating shaft 221, and the pair of guide rods 41 are symmetrically arranged on the connecting plate 211 along the axial direction of the rotating shaft 221. Such a setting can ensure that the rolling component 20 remains stable during the ascending or descending process, thereby ensuring that the pressure exerted by the roller 22 on the product is relatively stable.

[0039] Please refer to Figure 1 , Figure 2 and Figure 5 , the top plate 11 is provided with a second through hole 112 corresponding to the screw rod 512. The screw rod 512 passes through the second through hole 112 and the screw rod 512 can move up and down along the second through hole 112. The end of the screw rod 512 is screwed to the connecting plate 211. The connecting plate 211 is provided with a threaded hole 2111 that matches the screw rod 512; by rotating the adjusting bolt 51, the connecting plate 211 can be driven to rise or fall.

[0040] Please refer toFigures 1 - 4 The adjusting assembly 50 further includes a fastening nut 52 which is screwed onto the screw rod 512 and located above the connecting plate 211. The fastening nut 52 can abut against the upper surface of the connecting plate 211, and its function is to fasten the connecting plate 211 to prevent the connecting plate 211 from loosening from the screw rod 512.

[0041] Furthermore, a pair of adjusting lugs 53 are respectively arranged on the head 511 and the fastening nut 52. The function of the adjusting lugs 53 is to facilitate the operator to turn the head 511 of the adjusting bolt 51 and the fastening nut 52.

[0042] The present utility model also provides a film covering mechanism 3.

[0043] Please refer to Figure 6 The film covering mechanism 3 includes a conveying unit 2 and at least one self - adaptive pressing unit 1 in any of the above - mentioned embodiments.

[0044] The conveying unit 2 includes a transmission belt 200 for conveying products. The self - adaptive pressing unit 1 is arranged above the transmission belt 200. The self - adaptive pressing unit 1 cooperates with the conveying unit 2 to attach the protective film to the products.

[0045] In addition, the present utility model also provides an automatic film covering and cutting device.

[0046] Please refer to Figure 7 The automatic film covering and cutting device includes a workbench 4, a loading mechanism 5, a feeding mechanism 6, a cutting mechanism 7, an unloading mechanism 8, and the film covering mechanism 3 in any of the above - mentioned embodiments.

[0047] The feeding mechanism 6, the film covering mechanism 3, the cutting mechanism 7, and the unloading mechanism 8 are sequentially arranged on the workbench 4. The loading mechanism 5 is arranged above the film covering mechanism 3 and is used for loading the protective film for the film covering mechanism 3 to use. The feeding mechanism 6 is used to provide products for the film covering mechanism 3. The cutting mechanism 7 is used to cut the protective film. The unloading mechanism 8 is used to convey the products with the protective film attached.

[0048] The beneficial effects of a self - adaptive pressing unit, a film covering mechanism and an automatic film covering and cutting device of the present utility model are as follows: not only the product yield is improved, but also it is applicable to various products with different specifications, and the production cost is reduced.

[0049] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. An adaptive pressing unit is arranged above a conveyor belt for conveying products, and is characterized in that, Comprising: A fixing frame, the fixing frame including a top plate erected above the conveyor belt; A rolling component, the rolling component including a rolling frame and at least one roller, the rolling frame being elastically connected to the top plate and located below the top plate, the roller being rotatably mounted on the rolling frame through a rotating shaft and located above the conveyor belt, the roller cooperating with the conveyor belt to press and fit the protective film onto the product, and the rolling component being capable of performing a lifting motion below the top plate; An elastic component, the elastic component including a spring disposed between the rolling frame and the top plate, the upper and lower ends of the spring respectively abutting against the top plate and the rolling frame; A guiding component, the guiding component including a guiding rod and a linear bearing cooperating with the guiding rod, the linear bearing being disposed on the top plate and penetrating through the upper and lower surfaces of the top plate, the lower end of the guiding rod being fixedly connected to the rolling frame, and the upper end of the guiding rod extending towards the linear bearing and passing through the linear bearing; An adjusting component, the adjusting component including an adjusting bolt, the adjusting bolt having a head and a screw rod fixedly connected to the head, the head being movably disposed above the top plate, the screw rod extending towards the direction close to the rolling frame and passing through the top plate, and the end of the screw rod being screwed to the rolling frame, and the adjusting bolt being used for adjusting the magnitude of the downward pressure of the roller.

2. The adaptive pressing unit according to claim 1, wherein The rolling frame includes a connecting plate and two mounting plates respectively disposed at both ends of the connecting plate, the mounting plates being provided with mounting holes cooperating with the rotating shaft, and the two ends of the rotating shaft being respectively inserted into the two mounting holes.

3. The adaptive pressing unit according to claim 2, wherein The elastic component further includes a connecting rod fixedly connected to the connecting plate, the connecting rod extending towards the direction close to the top plate and passing through the top plate, the spring being sleeved on the connecting rod, and the upper and lower ends of the spring respectively abutting against the top plate and the connecting plate.

4. The adaptive pressing unit according to claim 3, characterized in that: The top plate is provided with a first through hole cooperating with the connecting rod, and the connecting rod passes through the first through hole and protrudes to the upper surface of the top plate.

5. The adaptive pressing unit according to claim 2, wherein: The lower end of the guiding rod is fixedly connected to the connecting plate, and the upper end of the guiding rod protrudes out of the upper surface of the linear bearing.

6. The adaptive pressing unit according to claim 2, wherein: The top plate is provided with a second through hole corresponding to the screw rod, the screw rod passes through the second through hole and the screw rod can perform a lifting motion along the second through hole, the end of the screw rod is screwed to the connecting plate, and by rotating the adjusting bolt, the connecting plate can be driven to rise or fall.

7. The adaptive pressing unit according to claim 6, characterized in that, The adjusting component further includes a fastening nut, the fastening nut being screwed to the screw rod and located above the connecting plate.

8. The adaptive pressing unit according to claim 7, wherein: A pair of adjusting lugs are respectively disposed on the head and the fastening nut.

9. A film laminating mechanism, characterized in that, Including a conveying unit and at least one adaptive pressing unit as described in any one of claims 1-8, the conveying unit including a conveyor belt for conveying a product, the adaptive pressing unit being disposed above the conveyor belt, and the adaptive pressing unit cooperating with the conveying unit to fit the protective film onto the product.

10. An automatic film laminating and cutting device, characterized in that, It includes a workbench, a loading mechanism, a feeding mechanism, a cutting mechanism, a discharging mechanism and the laminating mechanism as described in claim 9, wherein the feeding mechanism, the laminating mechanism, the cutting mechanism and the discharging mechanism are sequentially arranged on the workbench, the loading mechanism is arranged above the laminating mechanism and is used to load a protective film for use by the laminating mechanism, the feeding mechanism is used to provide products to the laminating mechanism, the cutting mechanism is used to cut the protective film, and the discharging mechanism is used to transport products with affixed protective film.

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