Tension-adjustable automatic film laminating machine

Abstract

The utility model discloses a tension-adjustable automatic film laminating machine, which relates to the technical field of film laminating machines and comprises two mounting vertical plates, two wind-up rollers, tension rollers, a film laminating compression roller and a conveying roller are sequentially and rotatably arranged between the two mounting vertical plates from left to right, and tension adjusting mechanisms are arranged at two ends of the two tension rollers. The device comprises a connecting shaft, a threaded sleeve, an electric threaded rod, a half gear and a turning motor. According to the tension-adjustable automatic film laminating machine, the tension adjusting mechanism is arranged, a turning motor is started to drive two half gears to synchronously and reversely rotate, two electric threaded rods, a threaded sleeve, a connecting shaft and a tension roller between the two electric threaded rods, the threaded sleeve and the connecting shaft rotate along with the two half gears, and the electric threaded rods are started to drive the threaded sleeve, the connecting shaft and the tension roller to move; therefore, the two tension rollers can change directions and move relatively at the same time to apply multi-angle force to a table pad and a film between the two tension rollers, so that the tension adjustment is more flexible and changeable to meet the production requirements of table pad films with different thicknesses and strengths.

Description

Technical Field

[0001] This utility model relates to the field of laminating machine technology, specifically to an adjustable tension automatic laminating machine. Background Technology

[0002] To address the noise issues generated by equipment operation in industrial areas such as factories and laboratories, PVC silent table mats are typically laid on machine tools, assembly line workbenches, and laboratory tables. These mats also possess properties such as wear resistance, slip resistance, and insulation. During the manufacturing process of PVC table mats, a laminating process is required on their surface, necessitating the use of a laminating machine.

[0003] Existing laminating machines, when processing products, cannot adjust the tension of the laminating paper, resulting in tension differences between the two sides of the laminating paper and causing the laminating paper to curl. To overcome this defect, the prior art (Chinese patent application number 202420988628.6, application date 2024-05-09) describes a packaging printing laminating machine. This machine uses a first hydraulic cylinder, a first U-shaped block, and an adjusting roller to move the adjusting roller, thereby changing the tension of the paper and film. A fixed horizontal plate, a third reversing motor, an adjusting frame, a threaded rod, and a flattening roller are used to move the flattening roller back and forth, flattening the paper and film and improving their flatness. However, the above device only adjusts the tension by changing the spacing of the adjusting roller through the hydraulic cylinder. This adjustment method is relatively rigid, only applying force in one direction, and has significant limitations in adjusting the film tension.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on existing equipment. Therefore, we have proposed a tension-adjustable automatic laminating machine that can effectively solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a tension-adjustable automatic laminating machine to solve the problem that the aforementioned devices in the background art adjust tension only by changing the spacing of the adjusting rollers driven by a hydraulic cylinder. This adjustment method is relatively rigid, can only apply force in one direction, and has significant limitations in adjusting the film tension.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tension-adjustable automatic laminating machine, comprising two mounting plates arranged opposite each other, with two take-up rollers, a tension roller, a laminating pressure roller, and a conveying roller rotatably arranged sequentially from left to right between the two mounting plates via a bracket; tension adjustment mechanisms are provided at both ends of the two tension rollers, and the tension adjustment mechanisms include connecting shafts fixedly connected to the outer walls of both ends of the tension roller bracket; two arc-shaped grooves are provided on each of the two mounting plates, and four connecting shafts pass through the corresponding arc-shaped grooves to the outer sides of both ends of the mounting plates; and threaded sleeves are fixedly connected to the two connecting shafts at the front end, with electric threaded rods threadedly connected to the inner side of the threaded sleeves, and half gears are rotatably connected to the two adjacent ends of the two electric threaded rods, and the two half gears mesh and drive each other; a reversing motor is fixedly installed on the end wall of the mounting plate at the front end, and the output shaft of the reversing motor is fixedly connected to one of the half gears.

[0007] Preferably, the two winding rollers, tension rollers, coating rollers, and conveyor rollers in each group are symmetrically distributed along the same central axis.

[0008] Preferably, the inner walls of the top and bottom of the arc-shaped groove are provided with limiting grooves, and guide rods slide between the limiting grooves, and the connecting shaft slides vertically on the outside of the guide rods.

[0009] Preferably, the two connecting shafts located at the rear end are fixedly connected to limit blocks, and the length of the limit blocks is greater than the opening height of the arc-shaped slide groove, and they slide against the outer end wall of the mounting plate.

[0010] Preferably, a fixed horizontal plate is fixedly connected between the top and bottom ends of the two mounting plates, and the fixed horizontal plate and the film-coating roller are on the same vertical plane. Furthermore, two sets of elastic flattening mechanisms are symmetrically distributed between the adjacent fixed horizontal plates and the film-coating roller.

[0011] Preferably, the elastic flattening mechanism includes a telescopic sleeve and a strong spring connected to the fixed horizontal plate and the film-coating roller bracket, and the telescopic sleeve is located inside the strong spring, and an electromagnetic assembly is installed inside the telescopic sleeve.

[0012] Preferably, the electromagnetic assembly consists of an electromagnet fixedly mounted on a fixed horizontal plate and a common magnetic block on a film-coating roller support.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This tension adjustable automatic laminating machine, by setting a tension adjustment mechanism, starts the reversing motor to drive the two half gears to rotate synchronously in opposite directions, the two electric threaded rods, threaded sleeves, connecting shafts and tension rollers in between rotate accordingly, and starts the electric threaded rods to drive the threaded sleeves, connecting shafts and tension rollers to move, so that the two tension rollers can simultaneously change direction and move relative to each other, so as to apply force to the pad and film in between at multiple angles, making the tension adjustment more flexible and varied, so as to adapt to the production needs of laminating pads of different thicknesses and strengths. The specific contents are as follows: (1) When in use, the reversing motor is started to drive the two half gears to rotate synchronously in opposite directions, the two electric threaded rods, threaded sleeves, connecting shafts and tension rollers in between rotate synchronously, and at this time the electric threaded rods are started to move the threaded sleeves, connecting shafts and tension rollers, so as to achieve the effect that the two tension rollers can simultaneously change direction and move relative to each other, so as to apply force to the pad and film in between at multiple angles, making the tension adjustment more flexible and varied, so as to adapt to the production needs of laminating pads of different thicknesses and strengths.

[0014] (2) By using the limiting groove and guide rod in the arc-shaped slide, the rotation of the connecting shaft can be limited on the plane, and the threaded sleeve and electric threaded rod can also be limited on the plane, thereby improving the operational stability of the tension adjustment mechanism.

[0015] (3) By setting up an elastic flattening mechanism, when in use, the two film-coating rollers are pushed close together by a strong spring, so that the two layers of pads and film can be squeezed and fixed together, thus realizing the film-coating operation.

[0016] (4) By energizing the electromagnet of the electromagnetic group, it can generate a force of attraction with the ordinary magnetic block, which can offset part of the squeezing force of the strong spring, thereby realizing the pressure adjustment between the two film-coating rollers, thus improving the versatility of the device. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a rear view schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a partial structural schematic diagram of the tension adjustment mechanism of this utility model;

[0021] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 6This is a schematic diagram of the elastic flattening mechanism of this utility model.

[0023] In the diagram: 1. Mounting plate; 2. Take-up roller; 3. Coating roller; 4. Conveyor roller; 5. Tension roller; 6. Arc-shaped chute; 7. Connecting shaft; 8. Threaded sleeve; 9. Reversing motor; 10. Half gear; 11. Electric threaded rod; 12. Guide slide rod; 13. Limiting block; 14. Fixed horizontal plate; 15. Telescopic sleeve; 16. Strong spring; 17. Electromagnetic assembly. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figures 1-6 The present invention provides the following technical solution: an adjustable tension automatic laminating machine, comprising two mounting plates 1 arranged opposite each other, and two take-up rollers 2, tension rollers 5, laminating pressure rollers 3 and conveying rollers 4 arranged rotatably from left to right between the two mounting plates 1 via a bracket. The two take-up rollers 2, tension rollers 5, laminating pressure rollers 3 and conveying rollers 4 in each group are symmetrically distributed along the same central axis to achieve horizontal stability during laminating and conveying, thereby ensuring the quality of laminating.

[0026] Tension adjustment mechanisms are provided at both ends of the two tension rollers 5, and the tension adjustment mechanisms include connecting shafts 7 fixedly connected to the outer walls of both ends of the tension roller 5 bracket. Two arc-shaped grooves 6 are opened on both mounting plates 1, and the four connecting shafts 7 pass through the corresponding arc-shaped grooves 6 to the outer sides of both ends of the mounting plates 1. The two connecting shafts 7 at the front end are fixedly connected to threaded sleeves 8. The inner side of the threaded sleeves 8 is threadedly connected to electric threaded rods 11, and the two electric threaded rods 11 are rotatably connected to half gears 10 at their close ends. The two half gears 10 mesh and drive each other. A reversing motor 9 is fixedly installed on the end wall of the mounting plate 1 at the front end, and the output shaft of the reversing motor 9 is fixedly connected to one of the half gears 10.

[0027] In use, the reversing motor 9 is started to drive the connected half gear 10 to rotate. This half gear 10 drives the other half gear 10 to rotate synchronously in the opposite direction through meshing. The two electric threaded rods 11 and the threaded sleeve 8 rotate synchronously with the half gears 10, and continue to drive the connecting shaft 7 to rotate along the arc-shaped slide groove 6. The tension roller 5 between the two connecting shafts 7 rotates synchronously. At this time, the electric threaded rod 11 is started to rotate, and the threaded sleeve 8 will move along it. Then, the tension roller 5 will move synchronously through the connecting shaft 7. In this way, the two tension rollers 5 can simultaneously change direction and move relative to each other, so that force can be applied to the pad and film at multiple angles, making the tension adjustment more flexible and adaptable to the production needs of pads with different thicknesses and strengths.

[0028] Furthermore, the inner walls of the top and bottom of the arc-shaped slide groove 6 are provided with limiting grooves, and guide rods 12 slide between the limiting grooves. The connecting shaft 7 slides vertically on the outside of the guide rods 12. Through the cooperation of the limiting grooves in the arc-shaped slide groove 6 and the guide rods 12, the rotation of the connecting shaft 7 can be limited on the plane, thereby limiting the threaded sleeve 8 and the electric threaded rod 11 on the plane as well, thus improving the operational stability of the tension adjustment mechanism.

[0029] In addition, the two connecting shafts 7 at the rear end are fixedly connected to the limiting block 13, and the length of the limiting block 13 is greater than the opening height of the arc-shaped slide 6, and slides against the outer end wall of the mounting plate 1, thereby achieving the planar limiting effect of the rear connecting shaft 7.

[0030] Example 2: Based on Example 1, a fixed horizontal plate 14 is fixedly connected between the top and bottom of the two mounting plates 1, and the fixed horizontal plate 14 and the film-coating roller 3 are on the same vertical plane. Two sets of elastic flattening mechanisms are symmetrically distributed between the adjacent fixed horizontal plates 14 and the film-coating roller 3.

[0031] Furthermore, the elastic flattening mechanism includes a telescopic sleeve 15 and a strong spring 16 connected to the fixed horizontal plate 14 and the support of the film-coating roller 3. The telescopic sleeve 15 is located inside the strong spring 16. An electromagnetic assembly 17 is installed inside the telescopic sleeve 15. The electromagnetic assembly 17 consists of an electromagnet fixedly installed on the fixed horizontal plate 14 and a common magnetic block on the support of the film-coating roller 3. By setting the elastic flattening mechanism, when in use, the strong spring 16 pushes the two film-coating rollers 3 close together, which can squeeze the two layers of pads and films to be fixedly bonded, thus realizing the film-coating operation. By energizing the electromagnet of the electromagnetic assembly 17, it generates an attraction force with the common magnetic block, which can offset part of the squeezing force of the strong spring 16, thereby realizing the pressure adjustment between the two film-coating rollers 3, thereby improving the versatility of the device.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tension-adjustable automatic laminating machine, comprising two mounting plates (1) arranged opposite to each other, wherein two take-up rollers (2), a tension roller (5), a laminating pressure roller (3) and a conveyor roller (4) are rotatably arranged between the two mounting plates (1) from left to right via a bracket; characterized in that Tension adjustment mechanisms are provided at both ends of the two tension rollers (5), and the tension adjustment mechanisms include connecting shafts (7) connected to the outer walls of both ends of the tension roller (5) bracket. Two arc-shaped grooves (6) are opened on both mounting plates (1), and four connecting shafts (7) pass through the corresponding arc-shaped grooves (6) to the outer sides of both ends of the mounting plate (1). The two connecting shafts (7) at the front end are connected to threaded sleeves (8). The inner side of the threaded sleeves (8) is threaded with electric threaded rods (11), and the two electric threaded rods (11) are rotatably connected to half gears (10) at their close ends. The two half gears (10) mesh and drive each other. A reversing motor (9) is installed on the end wall of the mounting plate (1) at the front end, and the output shaft of the reversing motor (9) is connected to one of the half gears (10).

2. The automatic film laminating machine with adjustable tension according to claim 1, characterized in that: The two take-up rollers (2), tension rollers (5), coating rollers (3), and conveyor rollers (4) in each group are symmetrically distributed along the same central axis.

3. The automatic tension-adjustable laminating machine according to claim 2, characterized in that: The inner walls of the top and bottom of the arc-shaped slide groove (6) are provided with limiting grooves, and guide slide rods (12) slide between the limiting grooves, and the connecting shaft (7) slides vertically on the outside of the guide slide rods (12).

4. The automatic tension-adjustable laminating machine according to claim 3, characterized in that: The two connecting shafts (7) located at the rear end are fixedly connected to the limiting block (13), and the length of the limiting block (13) is greater than the opening height of the arc-shaped slide (6), and slides against the outer end wall of the mounting plate (1).

5. The automatic tension-adjustable laminating machine according to claim 4, characterized in that: A fixed horizontal plate (14) is fixedly connected between the top and bottom ends of the two mounting plates (1), and the fixed horizontal plate (14) and the film-coating roller (3) are on the same vertical plane. Two sets of elastic flattening mechanisms are symmetrically distributed between the adjacent fixed horizontal plates (14) and the film-coating roller (3).

6. The automatic tension-adjustable laminating machine according to claim 5, characterized in that: The elastic flattening mechanism includes a telescopic sleeve (15) and a strong spring (16) connected to the fixed horizontal plate (14) and the support of the film-coating roller (3), and the telescopic sleeve (15) is located inside the strong spring (16). An electromagnetic assembly (17) is installed inside the telescopic sleeve (15).

7. The automatic tension-adjustable laminating machine according to claim 6, characterized in that: The electromagnetic assembly (17) consists of an electromagnet fixedly installed on a fixed horizontal plate (14) and a common magnetic block on the support of the film-coating roller (3).

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