A pre-coating roller structure to prevent film deviation

Abstract

This utility model relates to the field of plastic film pre-coating technology, specifically disclosing a pre-coating film applicator roller structure to prevent film deviation. The structure includes a support frame, an applicator roller connected to the middle of the support frame, a connecting block on one side of the support frame, a displacement opening on one side of the connecting block, a limiting block connected to the middle of the displacement opening, a placement groove on one side of the limiting block, a correction shaft connected to the bottom of the placement groove, a synchronous belt connected to one end of the correction shaft, and a drive motor connected to the other end of the synchronous belt. Through the limiting block in this device, when the film passes through the placement groove on both sides of the limiting block, the rotation of the correction shaft at the bottom of the placement groove generates a certain resetting and correcting force on the film during left and right displacement, preventing the film from easily deviating to the left or right, thus preventing the film from being squeezed and bent against the middle of the support frame, which would affect the uniform application of the adhesive.

Description

Technical Field

[0001] This utility model relates to the field of plastic film pre-coating technology, and more specifically, to a pre-coating roller structure that prevents film deviation. Background Technology

[0002] Pre-coated film refers to the process of uniformly applying a layer of adhesive to one side of a plastic film and then cooling and curing it.

[0003] Some existing plastic films used to form protective shells for packaging have a certain degree of rigidity. This makes the plastic film prone to lateral displacement during the coating process between the coating roller and the pressing roller. It is easy for the plastic film to come into contact with the inner wall of the middle part of the coating roller support, which causes the two sides of the plastic film to be squeezed and bent, thus affecting the uniform application of the adhesive. Utility Model Content

[0004] The purpose of this invention is to provide a pre-coating film applicator roller structure that prevents film deviation, thereby solving the problem that when the plastic film passes through the applicator roller, it shifts left and right, causing the two sides of the plastic film to press against the inner wall of the applicator roller support. This displacement and pressure causes the two sides of the plastic film to be squeezed and deformed, affecting the applicator application.

[0005] This utility model is achieved through the following technical solution: This utility model provides a pre-coated film applicator roller structure to prevent film deviation, including a bracket, an applicator roller connected to the middle of the bracket, a connecting block provided on one side of the bracket, a displacement opening provided on one side of the connecting block, a limiting block connected to the middle of the displacement opening, a placement groove provided on one side of the limiting block, a correction shaft connected to the bottom of the middle of the placement groove, a synchronous belt connected to one end of the correction shaft, and a drive motor connected to one end of the synchronous belt.

[0006] Preferably, the limiting block is matched with the displacement opening.

[0007] Preferably, the limiting block further includes a rotating screw and a connecting groove, the rotating screw being connected to one side of the limiting block, and the connecting groove being located at the bottom center of the placement groove.

[0008] Preferably, one end of the rotating screw is rotatably connected to one side of the limiting block, and one end of the rotating screw protrudes through and onto one side of the connecting block.

[0009] Preferably, the sidewall of the rotating screw is threaded to match the through hole thread of the connecting block.

[0010] Preferably, the connecting groove is a recess located at the bottom of the middle part of the placement groove, and the correction shaft is connected in the connecting groove.

[0011] Preferably, the timing belt engages with the toothed grooves of the hinge shaft at one end of the correction shaft, and one end of the timing belt is connected to the output end of the drive motor.

[0012] The technical solution of this utility model has at least the following advantages and beneficial effects: 1. By using the limiting blocks in the device, when the film passes through the placement grooves of the limiting blocks on both sides, the correction shaft at the bottom of the middle of the placement groove rotates to generate a certain reset and correction force on the film when it moves left and right, so that the film will not easily deflect left and right, causing the two sides to press and deform against the middle of the support, thus affecting the uniform application of the adhesive. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0015] Figure 3 This is a side view of the bracket of this utility model.

[0016] Figure 4 This is a top sectional view of the connecting block of this utility model.

[0017] Reference numerals: 1-bracket, 101-applying roller, 2-connecting block, 201-displacement opening, 202-limiting block, 2021-rotating screw, 2022-placement groove, 2023-connecting groove, 2024-correction shaft, 2025-drive motor, 2026-synchronous belt. Detailed Implementation

[0018] The following is combined with Figures 1 to 4 This utility model will be described in detail.

[0019] A pre-coating film applicator structure for preventing film deviation includes a support 1, an applicator roller 101 connected to the middle of the support 1, a connecting block 2 on one side of the support 1, a displacement opening 201 on one side of the connecting block 2, a limiting block 202 connected to the middle of the displacement opening 201, a placement groove 2022 on one side of the limiting block 202, a correction shaft 2024 connected to the bottom of the middle of the placement groove 2022, a timing belt 2026 connected to one end of the correction shaft 2024, and a drive motor 2025 connected to one end of the timing belt 2026.

[0020] First, the plastic film with adhesive on its surface is passed between the coating roller 101 and the pressing roller to evenly squeeze and apply the adhesive to the surface of the film. Then, the film is pre-coated by cooling and curing.

[0021] Furthermore, the limiting block 202 cooperates with the displacement opening 201. The limiting block 202 also includes a rotating screw 2021 and a connecting groove 2023. The rotating screw 2021 is connected to one side of the limiting block 202. The connecting groove 2023 is located at the bottom center of the placement groove 2022. One end of the rotating screw 2021 is rotatably connected to one side of the limiting block 202. One end of the rotating screw 2021 protrudes through and protrudes from one side of the connecting block 2. The side wall of the rotating screw 2021 is threadedly matched with the through hole of the connecting block 2. The connecting groove 2023 is a groove located at the bottom center of the placement groove 2022. The correction shaft 2024 is connected in the connecting groove 2023. The synchronous belt 2026 engages with the hinged shaft teeth at one end of the correction shaft 2024. One end of the synchronous belt 2026 is connected and engaged with the output end of the transmission motor 2025.

[0022] When the film enters between the coating roller 101 and the pressing roller, both sides of the film are placed in the placement groove 2022 on one side of the limiting block 202 in the connecting block 2. If the film is continuously conveyed between the coating roller 101 and the pressing roller and is displaced to the left or right, the bottom of the film will contact the correction shaft 2024 rotating towards the center of the film. The correction shaft 2024 is driven to rotate by the synchronous belt 2026 at the output end of the transmission motor 2025. The rotation of the correction shaft 2024 in contact with the bottom of the film generates a certain force to move the film towards the center, preventing the film from easily moving to the left or right. The correction shafts 2024 on both sides are continuously rotated by the transmission motor 2025. When the plastic film is between the correction shafts 2024 on both sides, the plastic film will be in dynamic balance, preventing the film from easily shifting and preventing the side walls of the film from being squeezed and bent against the two ends of the coating roller 101, causing the sides to deform into an arc shape, which would affect the application of the adhesive.

[0023] Meanwhile, the limiting block 202 can be connected by a rotating screw 2021 that is rotated at one end, so that the rotating screw 2021 can move through the connecting block 2, thereby pushing the limiting block 202 to move along the displacement opening 201, thereby adjusting the position of the limiting block 202 in the displacement opening 201 to adapt to films of different widths.

[0024] Finally, the bottom of the middle part of the placement groove 2022 is flush with the bottom of the gap between the coating roller 101 and the pressing roller, so that the film is not obstructed when passing through the placement groove 2022.

[0025] The following is a specific implementation process of this utility model: First, a plastic film with adhesive liquid poured on its surface is passed between the coating roller 101 and the pressing roller to evenly squeeze and apply the adhesive liquid onto the surface of the film. Then, the film is pre-coated by cooling and curing.

[0026] When the film enters between the coating roller 101 and the pressing roller, both sides of the film are placed in the placement groove 2022 on one side of the limiting block 202 in the connecting block 2. If the film shifts left or right while continuously being conveyed between the coating roller 101 and the pressing roller, the bottom of the film will contact the correction shaft 2024 rotating towards the center of the film. The correction shaft 2024 is rotated by the synchronous belt 2026 at the output end of the transmission motor 2025. The rotation of the correction shaft 2024 in contact with the bottom of the film generates a certain force to move the film towards the center, preventing the film from easily shifting left or right. Driven by the transmission motor 2025, the plastic film rotates continuously. When the plastic film is between the two correction shafts 2024, it is in dynamic balance, preventing the film from easily shifting and avoiding the sidewalls of the film from accumulating and wrinkling against the two ends of the coating roller 101, which would affect the application of the adhesive. At the same time, the limiting block 202 can be connected to the rotating screw 2021, which is connected to one end. The rotating screw 2021 moves through the connecting block 2, thereby pushing the limiting block 202 to move along the displacement opening 201, thereby adjusting the position of the limiting block 202 in the displacement opening 201 to adapt to films of different widths.

Claims

1. A pre-coating film applicator roller structure for preventing film deviation, comprising a support (1), wherein an applicator roller (101) is connected to the middle of the support (1), characterized in that, A connecting block (2) is provided on one side of the bracket (1), and a displacement opening (201) is provided on one side of the connecting block (2). A limiting block (202) is connected to the middle of the displacement opening (201), and a placement groove (2022) is provided on one side of the limiting block (202). A correction shaft (2024) is connected to the bottom of the middle part of the placement groove (2022). A synchronous belt (2026) is connected to one end of the correction shaft (2024), and a transmission motor (2025) is connected to one end of the synchronous belt (2026).

2. The pre-coating roller structure for preventing film deviation according to claim 1, characterized in that, The limiting block (202) cooperates with the displacement opening (201).

3. The pre-coating roller structure for preventing film deviation according to claim 1, characterized in that, The limiting block (202) also includes a rotating screw (2021) and a connecting groove (2023). The rotating screw (2021) is connected to one side of the limiting block (202), and the connecting groove (2023) is located at the bottom center of the placement groove (2022).

4. The pre-coating roller structure for preventing film deviation according to claim 3, characterized in that, One end of the rotating screw (2021) is rotatably connected to one side of the limiting block (202), and one end of the rotating screw (2021) protrudes through and onto one side of the connecting block (2).

5. The pre-coating roller structure for preventing film deviation according to claim 3, characterized in that, The sidewall of the rotating screw (2021) is threaded to the through hole of the connecting block (2).

6. The pre-coating roller structure for preventing film deviation according to claim 3, characterized in that, The connecting groove (2023) is a recess located at the bottom of the middle part of the placement groove (2022), and the correction shaft (2024) is connected in the connecting groove (2023).

7. The pre-coating roller structure for preventing film deviation according to claim 1, characterized in that, The synchronous belt (2026) engages with the hinged shaft teeth at one end of the correction shaft (2024), and one end of the synchronous belt (2026) is connected to the output end of the drive motor (2025).

Images