Covered spring buffer structure

Abstract

The utility model discloses a film-covered spring buffer structure which comprises a machine frame, a conveying device and a pressing device, the conveying device and the pressing device are both arranged on the machine frame, the conveying device comprises a conveying roller, the pressing device comprises a pressing air cylinder, a pressing roller and a spring, the pressing roller is located above the conveying roller, the pressing air cylinder is a double-outlet-rod air cylinder, and the pressing roller is located above the conveying roller. The bottom end of a piston rod of the downward-pressing air cylinder is connected with the downward-pressing roller, a limiting piece is arranged at the top end of the piston rod of the downward-pressing air cylinder, the piston rod of the downward-pressing air cylinder is sleeved with the spring, the spring is located above a cylinder body of the downward-pressing air cylinder, and the top end of the spring abuts against the limiting piece. The downward pressing air cylinder is a double-outlet-rod air cylinder, so that installation of the spring is facilitated, and the overall structure is simple; when the piston rod of the pressing cylinder extends downwards, the spring can act on the piston rod, and the piston rod acts on the pressing roller, so that the impact force in the pressing process of the pressing roller is prevented from being too large, a buffering effect is achieved, the phenomenon that the tension of a film is too large or too small is effectively avoided, and the film covering quality is improved.

Description

Technical Field

[0001] This utility model relates to an important component of a laminating machine, and in particular to a laminating spring buffer structure. Background Technology

[0002] After the control panels of electrical appliances are processed, one or both sides of the control panel need to be laminated to protect it. During the lamination process, the upper and lower rollers of the laminating machine press the product and the film together to achieve the lamination effect. However, in many laminating machines, the upper roller presses down directly, covering and pressing the film onto the product. Therefore, when the upper roller presses down, it can easily cause excessive lamination tension, resulting in deformation after lamination and affecting the lamination effect. Conversely, if the upper roller does not press down enough, the lamination tension is too low, which can easily lead to air bubbles. Utility Model Content

[0003] The purpose of this invention is to provide a coated spring buffer structure that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, a film-coated spring buffer structure is provided, including a frame, a conveying device, and a pressing device. Both the conveying device and the pressing device are mounted on the frame. The conveying device includes a conveying roller, and the pressing device includes a pressing cylinder, a pressing roller, and a spring. The pressing roller is located above the conveying roller. The pressing cylinder is a double-rod cylinder. The bottom end of the piston rod of the pressing cylinder is connected to the pressing roller. A limiting member is provided at the top end of the piston rod of the pressing cylinder. The spring is sleeved on the piston rod of the pressing cylinder and is located above the cylinder body of the pressing cylinder. The top end of the spring abuts against the limiting member.

[0005] The beneficial effects of this utility model are as follows: Since the pressing cylinder is a double-rod cylinder, it facilitates the installation of the spring on the piston rod of the pressing cylinder, simplifying the overall structure. With the spring provided and limited by a limiting component, when the piston rod of the pressing cylinder extends downwards, the spring acts on the piston rod, which in turn acts on the pressing roller. This prevents excessive impact force during the pressing roller's downward movement, providing a buffering effect. Consequently, the pressing roller can smoothly apply pressure to the coated product, ensuring a flat film coating. This effectively avoids excessive or insufficient coating tension, thus improving coating quality.

[0006] In some implementations, the pressure cylinders are located at both ends of the pressure roller. This facilitates smooth downward pressure of the entire pressure roller.

[0007] In some embodiments, a stop is provided on the piston rod of the pressing cylinder, the stop being located above the cylinder body, and the bottom end of the spring abuts against the stop. Thus, by providing the stop, the spring can easily act on the piston rod via the stop.

[0008] In some embodiments, the piston rod of the pressing cylinder has an external thread at its top, and the limiting member is a nut, with the limiting member and the piston rod of the pressing cylinder being threadedly engaged. Thus, by means of the threaded engagement between the limiting member and the piston rod of the pressing cylinder, the limiting member can be rotated to adjust its position on the piston rod, thereby adjusting the degree of spring compression to meet different usage requirements.

[0009] In some embodiments, the coated spring buffer structure further includes a gasket sandwiched between the limiting member and the spring, with the limiting member abutting against the spring via the gasket. Thus, the gasket allows the limiting member to be more easily and firmly pressed against the spring.

[0010] In some embodiments, a mounting bracket is provided on the frame, and the cylinder body of the pressure cylinder is fixed on the mounting bracket. Thus, by providing a mounting bracket, the installation of the pressure cylinder on the frame is convenient.

[0011] In some embodiments, the film-coated spring buffer structure further includes lifting blocks, with each end of the lower pressure roller fitted onto the lifting blocks at both ends. The lifting blocks are connected to the bottom end of the piston rod of the lower pressure cylinder. Thus, the installation of the lower pressure roller is facilitated by the addition of lifting blocks.

[0012] In some embodiments, the mounting frame is equipped with a vertical guide rail, and guide grooves are provided on both sides of the lifting block, which cooperate with the vertical guide rail. This facilitates the smooth lifting and lowering of the lifting block along the vertical guide rail, and also facilitates the smooth lifting and lowering of the lower pressure roller.

[0013] In some embodiments, the conveying device further includes a conveying motor, synchronous pulleys, and a synchronous belt. The conveying motor is mounted on a frame, and synchronous pulleys are fitted onto the output shaft of the conveying motor. Synchronous pulleys are also provided at one end of the conveying rollers, and the synchronous belts are fitted onto each synchronous pulley. Thus, through the various structures of the conveying device, the conveying rollers can be driven to rotate, thereby facilitating the conveying and coating of products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the pressing device in the membrane spring buffer structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the film-coated spring buffer structure of this utility model, showing the cooperation between the lower pressure roller and the conveying roller. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Reference Figure 1 and Figure 2The laminating spring buffer structure includes a frame 1 (not shown in the figure), a conveying device 2, and a pressing device 3. Both the conveying device 2 and the pressing device 3 are mounted on the frame 1. The conveying device 2 includes a conveying roller 21, and the pressing device 3 includes a pressing cylinder 31, a pressing roller 32, and a spring 33. The pressing roller 32 is located above the conveying roller 21. The pressing cylinder 31 is a double-rod cylinder, with the bottom end of the piston rod connected to the pressing roller 32. A limiting member 4 is provided at the top end of the piston rod of the pressing cylinder 31. The spring 33 is sleeved on the piston rod of the pressing cylinder 31, located above the cylinder body of the pressing cylinder 31, and its top end abuts against the limiting member 4. The frame 1 is the frame of the laminating machine.

[0018] In use, the product to be coated is conveyed by the conveyor roller 21. Since the pressure roller 32 is located above the conveyor roller 21, when coating is required, the film can be guided and input through the pressure roller 32 and the conveyor roller 21, covering the product between the conveyor roller 21 and the pressure roller 32. When the control panel is conveyed and coated one sheet at a time, the piston rod of the pressure cylinder 31 moves downward, pushing the pressure roller 32 downward to press firmly onto the product, so that the film is pressed firmly onto the product, thus achieving coating. After the control panel is coated, the piston rod of the pressure cylinder 31 is pulled back upward.

[0019] By installing a spring 33 on the piston rod of the pressing cylinder 31, when the piston rod of the pressing cylinder 31 extends downward and drives the pressing roller 32 to act on the product, the rebound force of the spring 33 acts on the top of the piston rod of the pressing cylinder 31, which allows the pressing roller 32 to press firmly on the product while avoiding excessive downward pressure and excessive pressure on the product, thus playing a good buffering role and ensuring the coating effect of the pressing roller 32 on the product.

[0020] The pressure cylinder 31 is located at both ends of the pressure roller 32. Therefore, the pressure roller 32 can press down smoothly under the action of the spring, which further ensures the flatness of the product coating and avoids excessive tension of the coating.

[0021] A stop block 311 is provided on the piston rod of the pressing cylinder 31. The stop block 311 is located above the cylinder body of the pressing cylinder 31, and the bottom end of the spring 33 abuts against the stop block 311. The stop block 311 can be integrally formed with the piston rod of the pressing cylinder 31, or it can be sleeved on the piston rod and welded in place. By providing the stop block 311, the spring 33 can be limited and installed on the piston rod of the pressing cylinder 31.

[0022] The piston rod of the pressing cylinder 31 has an external thread at its top, and the limiting member 4 is a nut. The limiting member 4 and the piston rod of the pressing cylinder 31 are threadedly engaged. When installing the spring 33 on the piston rod of the pressing cylinder 31, the spring 33 is first sleeved on the piston rod of the pressing cylinder 31, and then the limiting member 4 is rotated and pressed onto the spring 33. In actual use, the compression degree of the spring 33 can be adjusted according to the pressing degree between the pressing roller 32 and the conveying roller 21 and the thickness of the coated product. By rotating the limiting member 4, the position of the limiting member 4 on the piston rod of the pressing cylinder 31 can be adjusted. When the limiting member 4 moves upward, the compression degree of the spring 33 decreases; when the limiting member 4 moves downward, the compression degree of the spring 33 increases, thereby increasing the rebound force of the spring 33.

[0023] The membrane spring buffer structure of this utility model also includes a gasket 5, which is sandwiched between the limiting member 4 and the spring 33. The limiting member 4 abuts against the spring 33 through the gasket 5. The gasket 5 allows the limiting member 4 to be pressed more firmly onto the spring 33.

[0024] Mounting brackets 11 are fixed to both sides of the frame 1 by screws, and the cylinder body of the pressing cylinder 31 is fixed on the mounting brackets 11.

[0025] The film-coated spring buffer structure of this utility model also includes lifting blocks 6. The two ends of the lower pressure roller 32 are respectively sleeved on the lifting blocks 6 at both ends, and the lifting blocks 6 are connected to the bottom end of the piston rod of the lower pressure cylinder 31. In actual installation, bearings are provided at the fitting points between the lower pressure roller 32 and the lifting blocks 6. The bearings are sleeved on both ends of the lower pressure roller 32, and the bearings facilitate the rotation of the lower pressure roller 32.

[0026] The mounting bracket 11 has a vertical guide rail formed on it, and the lifting block 6 has guide grooves on both sides, which cooperate with the vertical guide rail. Therefore, when the piston rod of the lower pressure cylinder 31 drives the lifting block 6 to rise and fall, the vertical guide rail guides the lifting block 6 to rise and fall smoothly, which in turn facilitates the smooth rise and fall of the lower pressure roller.

[0027] The conveying device 2 also includes a conveying motor 22, synchronous pulleys 23, and a synchronous belt 24. The conveying motor 22 is mounted on the frame 1, and synchronous pulleys 23 are fitted onto the output shaft of the conveying motor 22. Synchronous pulleys 23 are also fitted onto one end of the conveying roller 21, and the synchronous belt 24 is fitted onto each synchronous pulley 23. Specifically, during film coating, the conveying motor 22 starts, driving the synchronous pulleys 23 on the output shaft to rotate. Under the action of the synchronous belt 24, the synchronous pulleys 23 at one end of the conveying pipe 21 rotate synchronously, thereby driving the conveying roller 21 to rotate, facilitating the rotation of the conveying roller 21 and realizing the conveying of the product.

[0028] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A membrane-coated spring buffer structure, characterized in that, The device includes a frame (1), a conveying device (2), and a pressing device (3). The conveying device (2) and the pressing device (3) are both mounted on the frame (1). The conveying device (2) includes a conveying roller (21). The pressing device (3) includes a pressing cylinder (31), a pressing roller (32), and a spring (33). The pressing roller (32) is located above the conveying roller (21). The pressing cylinder (31) is a double-rod cylinder. The bottom end of the piston rod of the pressing cylinder (31) is connected to the pressing roller (32). The top end of the piston rod of the pressing cylinder (31) is provided with a limiting member (4). The spring (33) is sleeved on the piston rod of the pressing cylinder (31). The spring (33) is located above the cylinder body of the pressing cylinder (31). The top end of the spring (33) abuts against the limiting member (4).

2. The membrane spring buffer structure according to claim 1, characterized in that, The pressure cylinder (31) is located at both ends of the pressure roller (32).

3. The membrane spring buffer structure according to claim 2, characterized in that, The piston rod of the pressing cylinder (31) is provided with a stop block (311), the stop block (311) is located above the cylinder body of the pressing cylinder (31), and the bottom end of the spring (33) abuts against the stop block (311).

4. The coated spring buffer structure according to claim 3, characterized in that, The piston rod of the pressing cylinder (31) has an external thread at the top, and the limiting member (4) is a nut. The limiting member (4) and the piston rod of the pressing cylinder (31) are threaded together.

5. The membrane spring buffer structure according to claim 4, characterized in that, It also includes a gasket (5), which is sandwiched between the limiting member (4) and the spring (33), and the limiting member (4) abuts against the spring (33) through the gasket (5).

6. The membrane spring buffer structure according to any one of claims 1 to 5, characterized in that, The frame (1) is provided with a mounting bracket (11), and the cylinder body of the downward pressure cylinder (31) is fixed on the mounting bracket (11).

7. The membrane spring buffer structure according to claim 6, characterized in that, It also includes lifting blocks (6), with the two ends of the lower roller (32) respectively sleeved on the lifting blocks (6) at both ends, and the lifting blocks (6) are connected to the bottom end of the piston rod of the lower cylinder (31).

8. The coated spring buffer structure according to claim 7, characterized in that, The mounting bracket (11) is provided with a vertical guide rail, and the lifting block (6) is provided with guide grooves on both sides, which cooperate with the vertical guide rail.

9. The membrane spring buffer structure according to any one of claims 1 to 5, characterized in that, The conveying device (2) also includes a conveying motor (22), a synchronous pulley (23) and a synchronous belt (24). The conveying motor (22) is mounted on the frame (1). The synchronous pulley (23) is sleeved on the output shaft of the conveying motor (22). One end of the conveying roller (21) is provided with a synchronous pulley (23). The synchronous belt (24) is sleeved on each synchronous pulley (23).

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