Film pressing device of tweezers film sticking machine

Abstract

The utility model provides a film pressing device of a tweezers film sticking machine, which comprises two guide rails, two sliding devices, two pressing mechanisms, two film pressing wheel assemblies, two adhesive tape wheel assemblies and two guide wheel assemblies, the pressing mechanism provides pressing force for the two sliding devices to get close to each other, the film pressing wheel assembly comprises a film pressing wheel and a driving motor, the driving motor is fixed to the back faces of the sliding devices, the film pressing wheel is arranged in front of the sliding devices and connected with an output shaft of the driving motor, and the adhesive tape wheel assembly is arranged on the outer side of the film pressing wheel. The two adhesive tape wheel assemblies are arranged between the film pressing wheel and the adhesive tape wheel assemblies in a left-right symmetry mode, and the two guide wheel assemblies are arranged between the film pressing wheel and the adhesive tape wheel assemblies in a left-right symmetry mode. The film pasting device has the advantages that a worker only needs to place the tweezers and start the switch, the surface film pasting of the tweezers heads can be rapidly completed, the process is repeated, and the continuous film pasting operation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of film applicator technology, and more specifically, to the design of a film pressing device for a tweezers film applicator. Background Technology

[0002] Tweezers are tools used to pick up lumps of medicine, metal particles, hair, thorns, and other small objects. The tips of tweezers are small and sharp. A protective film prevents oxidation and scratches on the tweezer tips, ensuring their aesthetic appearance. It also prevents the tweezers from injuring the user and avoids damage to the tips during packaging and transportation, which could affect product sales.

[0003] It has an attractive surface.

[0004] Most tweezers sold on the market do not have protective films on their tips. They usually use transparent soft plastic sleeves to protect the tips from scratches. Soft plastic sleeves are relatively expensive, so using protective films to protect the tips can reduce costs.

[0005] Currently, there are many types of laminating machines on the market, most of which are designed specifically for specific workpieces. There is no laminating machine specifically for tweezers. It is very necessary to design a laminating device that can apply film to the two tweezer tips of tweezers and achieve good laminating effect. Utility Model Content

[0006] The purpose of this utility model is to solve the above-mentioned technical problems and to provide a film-pressing device for a tweezers film-applying machine that can quickly apply film to the surface of tweezers and improve film-applying efficiency.

[0007] This utility model is achieved through the following technical solution.

[0008] This utility model provides a film pressing device for a tweezers film applicator, comprising:

[0009] Two guide rails are arranged parallel to each other with an upper and lower interval.

[0010] Two sliding devices are slidably connected to two guide rails;

[0011] Two clamping mechanisms provide clamping force to bring the two sliding devices closer together;

[0012] Two pressure roller assemblies, each comprising a pressure roller and a drive motor, wherein the drive motor is fixed to the back of the sliding device and the pressure roller is disposed in front of the sliding device and connected to the output shaft of the drive motor;

[0013] Two belt pulley assemblies are arranged on the outside of the pressing wheel, and the two belt pulley assemblies are arranged symmetrically on the left and right.

[0014] Two guide wheel assemblies are arranged between the pressure roller and the belt roller assembly, and the two guide wheel assemblies are arranged symmetrically on the left and right.

[0015] In the above technical solution, the tape installed on the tape roller assembly is guided by the guide roller assembly and passes between the two pressure rollers. When applying the film, the two tweezers are placed in a slightly higher position between the two pressure rollers to contact the tape. The pressure rollers rotate under the drive of the drive motor, and the pressure rollers drive the tape and tweezers to move downwards. After the two tweezers and the tape have passed the two pressure rollers, the tape can be applied to the surface of the tweezers. By repeatedly placing new tweezers and repeating the cycle, the tape can be applied to the tweezers of new tweezers. The processing efficiency is high, and no air bubbles are generated during the application, resulting in a good film application effect.

[0016] Preferably, the sliding device includes a base plate and sliders. The drive motor is fixed to the back of the base plate, and the output shaft of the drive motor extends to the front of the base plate and connects to the pressure roller. The base plate is slidably connected to two guide rails via two sliders fixed to the back of the base plate. In this technical solution, the base plate of the sliding device slides along the two rails, the sliding process is smooth, vibration is avoided, and the noise generated during operation is very low, providing users with a more comfortable and quiet operating environment.

[0017] Preferably, the clamping mechanism includes an optical shaft and a compression spring mounted on the optical shaft. The optical shaft is arranged laterally, and a connecting plate is provided on the side of the base plate. The optical shaft passes through a guide hole provided in the connecting plate and is slidably connected to the connecting plate. One end of the compression spring abuts against the connecting plate. In this technical solution, the connecting plate of the sliding device and the compression spring are tightly pressed together, ensuring that the compression spring can always provide a continuous clamping force to the sliding device. This design allows the tape to adhere tightly to the surface of the tweezers during the process of the pressure roller applying the tape to the surface of the tweezers, thereby effectively avoiding the generation of air bubbles. Such tight adhesion not only improves the efficiency of film application but also ensures a perfect film application effect, providing a reliable guarantee for subsequent use.

[0018] Preferably, the belt pulley assembly includes a belt pulley, a first bolt, a baffle, a guide shaft, and a mounting base. The front half of the circumferential surface of the first bolt is smooth, and the rear half of the circumferential surface is threaded. The belt pulley is fitted onto the smooth surface of the first bolt. The first bolt passes through the baffle and is threadedly connected to the mounting base, and a nut is screwed onto the rear side of the first bolt. The guide shaft is slidably connected to the mounting base, and its front end is fixedly connected to the baffle. In this technical solution, the precise front-to-back position of the belt pulley is adjusted by tightening the bolt. This adjustment mechanism allows the operator to make fine back-to-back movements of the belt pulley as needed, thereby ensuring that the edges of all the tape are perfectly aligned. When the edges of the tape are aligned, the operator can ensure that the tape on the inner and outer surfaces of the tweezers is completely aligned when using tweezers for film application, thus achieving an ideal bonding effect. This alignment precision not only improves the efficiency of film application but also significantly enhances the quality of the final product, ensuring the flatness and aesthetics of the applied film.

[0019] Preferably, a bearing is provided at the front and rear of the smooth surface of the first bolt, and the pulley is mounted on and fixed to the bearing. In this way, the friction encountered by the pulley during rotation is significantly reduced, making the rotation process smoother and more unobstructed. As a result, the looped tape mounted on the pulley can be released more easily under the traction of the pressure roller, improving the working efficiency of the entire device and the convenience of tape use.

[0020] Preferably, the circumferential surface of the belt pulley has two radially symmetrical grooves, and a belt clamping spring is provided in each groove. In this technical solution, the loop-shaped tape can be easily installed on the belt pulley. Once the loop-shaped tape is in place, the clamping spring automatically activates, firmly fixing the loop-shaped tape to the belt pulley. This design greatly simplifies the process of replacing the loop-shaped tape, making it convenient and quick. In addition, it effectively prevents any impact that may be caused by the loop-shaped tape accidentally falling off during the film application process, ensuring the smooth progress of the film application operation.

[0021] Preferably, the clamping spring is U-shaped, with one side connected and fixed to a threaded hole at the bottom of the groove by a screw, and the other side located outside the groove above the circumference of the belt pulley, with a guide surface at the front end of that side. This facilitates replacement of the clamping spring if its elasticity decreases over time.

[0022] Preferably, the rear side of the pulley is provided with an annular flange with a diameter larger than that of the pulley, and the annular flange is coaxially arranged with the pulley. In this technical solution, the purpose of the annular flange design is to effectively block and limit the loop of tape fitted on the pulley. This design ensures that during operation, such as tightening bolts to adjust the front and rear position of the pulley, the edges of the pulley can be precisely aligned. At the same time, the annular flange also ensures that the edges of the loop of tape fitted on the pulley can also remain aligned, thereby ensuring the accuracy and reliability of the entire device.

[0023] Preferably, the mounting base of the belt roller assembly is fixedly connected to the connecting plate, and the guide roller assembly is disposed in front of the base plate and connected to the base plate. In this way, the lower belt roller assembly, the lower guide roller assembly, and the pressure roller can move synchronously in the left and right directions with the sliding device. When the left and right pressure rollers approach or open from each other, the belt will not be displaced relative to the surface of the pressure rollers as it passes over them. This design can effectively prevent the belt from not fully adhering when it contacts the surface of the pressure rollers, thereby avoiding the problem of air bubbles easily generated due to belt displacement.

[0024] Preferably, the guide wheel assembly includes a second bolt and a guide bearing. The front half of the circumferential surface of the second bolt is smooth, while the rear half of the circumferential surface is threaded. The threaded portion of the second bolt is fixedly connected to the bottom thread, and the guide bearing is fitted onto the smooth surface of the second bolt. In this way, the friction encountered by the guide bearing during rotation is significantly reduced, resulting in smoother and more unobstructed rotation. Consequently, the tape passing over the guide bearing surface can be more easily released under the traction of the pressure roller, improving the overall efficiency of the device and the ease of use of the tape.

[0025] The beneficial effects of this invention are that, during the production process, workers manually place the tweezers. Once this action is completed, simply activating the control switch quickly completes the double-sided film application on the tweezers tip. By continuously repeating this process—that is, continuously placing the tweezers and activating the control switch—continuous film application can be achieved. This method significantly improves the efficiency of film application on the tweezers tip, greatly enhancing the automation level of the entire production process. At the same time, this efficient film application method effectively reduces the cost of film application on the tweezers tip, thereby enhancing the product's market competitiveness. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0027] Figure 2This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram showing the structure of the sliding device, pressing mechanism, and pressure roller assembly of this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of the belt pulley assembly of this utility model;

[0030] Figure 5 This is a schematic diagram of the belt pulley assembly of this utility model, omitting the belt pulley.

[0031] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention. Figure 1 ;

[0032] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention. Figure 2 . Detailed Implementation

[0033] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0034] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0035] Example 1

[0036] This utility model provides a film pressing device for a tweezers film applicator, such as... Figure 1 and Figure 2 As shown, the device includes two guide rails 1, two sliding devices 2, two pressing mechanisms 3, two film pressing wheel assemblies 4, two adhesive roller assemblies 5, and two guide wheel assemblies 6. The two guide rails 1 are fixed to the frame of the tweezers laminating machine and are arranged parallel to each other at an interval. The two sliding devices 2 are slidably connected to the two guide rails 1 and can slide left and right along the guide rails 1 to approach each other. The pressing mechanisms 3 provide pressing force for the two sliding devices 2 to approach each other. The film pressing wheel assembly 4 includes a film pressing wheel 41 and a drive motor 42. The drive motor 42 is fixed to the back of the sliding device 2, and the film pressing wheel 41 is located in front of the sliding device 2 and connected to the output shaft of the drive motor 42. The adhesive roller assemblies 5 are located outside the film pressing wheel 41, and the two adhesive roller assemblies 5 are symmetrically arranged on the left and right. The guide wheel assemblies 6 are located between the film pressing wheel 41 and the adhesive roller assemblies 5, and the two guide wheel assemblies 6 are symmetrically arranged on the left and right.

[0037] like Figure 3 As shown, in this embodiment, the sliding device 2 includes a base plate 21 and sliders 22. A drive motor 42 is fixed to the back of the base plate 21, and the output shaft of the drive motor 42 extends to the front of the base plate 21 and is connected to the pressure roller 41. The base plate 21 is slidably connected to two guide rails 1 through two sliders 22 fixed to the back of the base plate 21. The pressing mechanism 3 includes an optical shaft 31 and a compression spring 32 mounted on the optical shaft 31. The optical shaft 31 is arranged horizontally to the left and right. A connecting plate 23 is provided on the side of the base plate 21. The optical shaft 31 passes through the guide hole provided in the connecting plate 23 and is slidably connected to the connecting plate 23. The other end of the optical shaft 31 is connected and fixed to the frame of the tweezers film applicator. One end of the compression spring 32 abuts against the connecting plate 23, and the other end abuts against the frame of the tweezers film applicator.

[0038] like Figure 4 As shown, in this embodiment, the belt pulley assembly 5 includes a belt pulley 51, a first bolt 52, a baffle 53, a guide shaft 54, and a mounting base 55. The front half of the circumferential surface of the first bolt 52 is smooth, and the rear half of the circumferential surface is threaded. The belt pulley 51 is fitted onto the smooth surface of the first bolt 52. The first bolt 52 passes through the baffle 53 and is threadedly connected to the mounting base 55. A nut is screwed onto the rear side of the first bolt 52. The guide shaft 54 ​​is slidably connected to the mounting base 55, and the front end of the guide shaft 54 ​​is connected and fixed to the baffle 53.

[0039] like Figure 5 As shown, as a further improvement, a bearing 56 is provided at the front and rear of the smooth surface of the first bolt 52, and the pulley 51 is mounted on the bearing 56 and fixed to the bearing.

[0040] like Figure 6 As shown, as a further improvement, the circumferential surface of the belt pulley 51 is provided with two grooves, which are radially symmetrical. A belt clamping spring 511 is provided in the groove. The clamping spring 511 is U-shaped. One side of the clamping spring 511 is connected and fixed to the threaded hole at the bottom of the groove by a screw 512. The other side is located outside the groove and is higher than the circumferential surface of the belt pulley 51. A guide surface is provided at the front end of this side to facilitate the fastening of the looped belt on the belt pulley 51. In addition, the rear side of the belt pulley 51 is provided with an annular retaining edge 513 with a diameter larger than that of the belt pulley 51. The annular retaining edge 513 is coaxially arranged with the belt pulley 51. The purpose of the design of the annular retaining edge 513 is to effectively block and limit the looped belt on the belt pulley 51, so that the edge of the looped belt can be precisely aligned.

[0041] The working principle of this utility model:

[0042] When applying the film, place the two tips of the tweezers slightly above the two pressure rollers 41 to contact the adhesive tape. The pressure rollers 41 rotate under the drive of the drive motor 42, which moves the adhesive tape and tweezers downward. After the two tips of the tweezers and the adhesive tape pass the two pressure rollers 41, the adhesive tape will be applied to the surface of the tweezers. By repeating the process of placing new tweezers, the film can be applied to the tips of new tweezers. This process is efficient, does not produce air bubbles, and has a good film application effect.

[0043] Example 2

[0044] The structure of this embodiment is similar to that of embodiment 1, except that, as follows: Figure 6 and Figure 7 As shown, the mounting base 55 of the belt pulley assembly 5 is connected and fixed to the connecting plate 23, and the guide wheel assembly 6 is located on the front side of the base plate 23 and connected to the base plate 23.

[0045] In this embodiment, the tape roller assembly 5, the guide roller assembly 6, and the pressure roller 41 can move synchronously in the left and right directions with the sliding device 2. When the left and right pressure rollers 41 approach or open to each other, the tape will not be displaced relative to the surface of the pressure roller 41 during the process of passing through the surface of the pressure roller 41. This design can effectively prevent the tape from not fully adhering when it comes into contact with the surface of the pressure roller 41, thereby avoiding the problem of air bubbles easily generated due to tape displacement.

[0046] Example 3

[0047] The structure of this embodiment is similar to that of embodiment 2, except that, as follows: Figure 6 As shown, the guide wheel assembly 6 includes a second bolt 61 and a guide bearing 62. The front half of the circumferential surface of the second bolt 61 is smooth, and the rear half of the circumferential surface is threaded. The threaded part of the second bolt 61 is threadedly connected and fixed to the base plate 21. There are three guide bearings 61, which are sequentially fitted onto the smooth surface of the second bolt 61.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A film-pressing device for a tweezers film applicator, characterized in that, include: Two guide rails are arranged parallel to each other with an upper and lower interval. Two sliding devices are slidably connected to two guide rails; Two clamping mechanisms provide clamping force to bring the two sliding devices closer together; Two pressure roller assemblies, each comprising a pressure roller and a drive motor, wherein the drive motor is fixed to the back of the sliding device and the pressure roller is disposed in front of the sliding device and connected to the output shaft of the drive motor; Two belt pulley assemblies are arranged on the outside of the pressing wheel, and the two belt pulley assemblies are arranged symmetrically on the left and right. Two guide wheel assemblies are arranged between the pressure roller and the belt roller assembly, and the two guide wheel assemblies are arranged symmetrically on the left and right.

2. The film-pressing device of the tweezers film applicator according to claim 1, characterized in that, The sliding device includes a base plate and sliders. The drive motor is fixed on the back of the base plate, and the output shaft of the drive motor extends to the front of the base plate and is connected to the pressure roller. The base plate is slidably connected to two guide rails by two sliders fixed on the back of the base plate.

3. The film-pressing device of the tweezers film applicator according to claim 2, characterized in that, The clamping mechanism includes an optical shaft and a compression spring mounted on the optical shaft. The optical shaft is arranged horizontally to the left and right. A connecting plate is provided on the side of the base plate. The optical shaft passes through the guide hole provided in the connecting plate and is slidably connected to the connecting plate. One end of the compression spring abuts against the connecting plate.

4. The film-pressing device of the tweezers film applicator according to claim 3, characterized in that, The belt pulley assembly includes a belt pulley, a first bolt, a baffle, a guide shaft, and a mounting base. The front half of the circumferential surface of the first bolt is smooth, and the rear half of the circumferential surface is threaded. The belt pulley is fitted onto the smooth surface of the first bolt. The first bolt passes through the baffle and is threadedly connected to the mounting base. A nut is screwed onto the rear side of the first bolt. The guide shaft is slidably connected to the mounting base, and the front end of the guide shaft is fixedly connected to the baffle.

5. The film-pressing device of the tweezers film applicator according to claim 4, characterized in that, A bearing is provided at the front and rear of the smooth surface of the first bolt, and the pulley is mounted on the bearing and fixed to the bearing.

6. The film-pressing device of the tweezers film applicator according to claim 5, characterized in that, The circumferential surface of the belt pulley has two grooves, which are radially symmetrical, and belt clamping springs are provided in the grooves.

7. The film-pressing device of the tweezers film applicator according to claim 6, characterized in that, The clamping spring is U-shaped, with one side connected and fixed to a threaded hole at the bottom of the groove by a screw, and the other side located outside the groove above the circumference of the belt pulley, with a guide surface at the front end of that side.

8. The film-pressing device of the tweezers film applicator according to claim 5, characterized in that, The rear side of the belt pulley is provided with an annular flange with a diameter larger than that of the belt pulley, and the annular flange is coaxially arranged with the belt pulley.

9. The film-pressing device of the tweezers film applicator according to any one of claims 4 to 8, characterized in that, The mounting base of the belt pulley assembly is fixedly connected to the connecting plate, and the guide wheel assembly is located in front of the base plate and connected to the base plate.

10. The film-pressing device of the tweezers film applicator according to claim 9, characterized in that, The guide wheel assembly includes a second bolt and a guide bearing. The front half of the circumferential surface of the second bolt is smooth, and the rear half of the circumferential surface is threaded. The threaded part of the second bolt is fixedly connected to the bottom thread. The guide bearing is fitted onto the smooth surface of the second bolt.

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