Mechanical device for preventing springback during pressing of compression roller

Abstract

The utility model discloses a compression roller pressing anti-rebound mechanical device which comprises a base, an air cylinder and an adjusting device, a fixing seat is arranged on the base, and the air cylinder is fixed on the base. The adjusting device is rotationally connected to the fixing base and comprises a movable ejector rod and an adjusting piece, and the adjusting piece can be screwed out along the movable ejector rod; the adjusting device is located on one side of the press-fit roller, and when the press-fit roller works, the adjusting device can manually shift the movable ejector rod to the push-out direction of the air cylinder and tightly eject the adjusting piece to the press-fit roller, so that the situation that the press-fit roller rebounds due to the change of material tension is prevented. The movable ejector rod is mounted on one side of the press-fit roller and fixed through the adjusting screw, so that a mechanical limiting structure is formed, rigid support is provided for the running press-fit roller, resilience of the press-fit rubber roller is effectively prevented, pressure between the press-fit rubber roller and the plate roller is kept stable all the time, color difference and deformation of a die pressing surface are avoided, and the press-fit roller is stable in quality. And pressure imbalance and gaps caused by tension fluctuation are also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of molding equipment, and particularly relates to a mechanical device for preventing rebound by pressing rollers. Background Art

[0002] In modern industrial production, embossing machines are widely used to process a variety of materials. In particular, in the printing and packaging industries, embossing machines are used to produce high-quality laser film. Due to its unique optical effects and aesthetics, laser film is widely used in high-end packaging, anti-counterfeiting labels, and decorative materials. Laser graphics work by pressing a laser embossing plate directly onto a film substrate or specialized coating at high temperatures, creating uneven, variably sized light refraction points. These refraction points can reflect different colors and patterns at specific angles, creating a pleasing visual effect.

[0003] However, there are many technical challenges in the molding process, the most critical of which is the control of the pressing pressure. In a molding machine, the pressing rubber roller is a key component for achieving pressing, and the stability and uniformity of its pressure directly affect the quality of the final product. In existing molding machines, the pressing rubber roller usually relies on the self-locking function of the cylinder to prevent rebound during pressing. The cylinder gas is soft, and when the tension of the material pressed by the pressing roller fluctuates greatly, it will affect the rebound of the pressing rubber roller. Specifically, when the pressing roller presses the material, if the material tension fluctuates greatly, the gas in the cylinder cannot provide sufficient rigid support, causing the pressing rubber roller to shift in the retraction direction, resulting in uneven pressure or gaps between the pressing rubber roller and the plate roller. This uneven pressure can cause quality problems such as color difference, black spots, white spots, water marks, wrinkles, cloud flowers, pitting, laser graphics and light column deformation on the surface of the material.

[0004] These issues not only affect the aesthetics and functionality of the product, but also cause problems with subsequent printing and processing, and may even prevent the laser film from being put into actual production. Especially in the field of high-end packaging and anti-counterfeiting labels, product quality requirements are extremely high. Any slight quality defect can lead to the scrapping of an entire batch of products, resulting in huge economic losses. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a mechanical device for preventing the rebound of the pressing roller. Through an innovative mechanical device, the rebound phenomenon caused by changes in material tension during the operation of the pressing roller can be effectively prevented. It is particularly suitable for equipment such as molding machines that require precise control of the pressing pressure.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is as follows: a mechanical device for pressing rollers to prevent rebound, comprising:

[0007] A base, wherein a fixing seat is provided on the base;

[0008] a cylinder, the cylinder being fixed to the base;

[0009] An adjusting device is rotatably connected to the fixed seat, and the adjusting device includes a movable push rod and an adjusting piece, and the adjusting piece can be rotated out along the movable push rod; the adjusting device is located on one side of the laminating roller, and when the laminating roller is working, the adjusting device can manually move the movable push rod to the cylinder pushing direction and press the adjusting piece to the laminating roller, so as to prevent the laminating roller from rebounding due to changes in material tension.

[0010] Compared with the prior art, the beneficial effect of the present invention is that the present invention forms a mechanical limiting structure by installing a movable push rod on one side of the lamination roller and fixing it with an adjusting screw. This mechanical limiting structure can provide rigid support and effectively prevent the rebound of the lamination rubber roller even when the material tension fluctuates greatly, ensuring that the pressure between the lamination rubber roller and the plate roller always remains stable, thereby avoiding color difference and deformation of the molding surface, while also avoiding the pressure imbalance and gaps caused by tension fluctuations, thereby improving printing quality and material integrity. Moreover, the mechanical device of the present application has a simple structure, low maintenance cost, and is suitable for long-term continuous operation; and the present application is not only applicable to printing and molding equipment. It can also be extended to other fields that require precise control of the lamination pressure, such as composite material manufacturing, laminating machines, etc.

[0011] In the above-mentioned mechanical device, the fixing seat is provided with a fixing groove, and the rear end of the movable push rod is clamped in the fixing groove.

[0012] In the above-mentioned mechanical device, fixing holes are provided on both sides of the fixing groove, and a pin can pass through the movable push rod and the fixing holes to movably connect the movable push rod to the fixing seat.

[0013] In the above-mentioned mechanical device, the adjusting member is an adjusting screw, and the contact pressure between the movable ejector rod and the pressing roller can be adjusted by rotating the adjusting screw.

[0014] In the above-mentioned mechanical device, a flat surface is provided at one end of the adjusting member, and when the pressing roller is working, the flat surface is in contact with the surface of the pressing roller.

[0015] In the above-mentioned mechanical device, before the lamination roller is recovered, the movable push rod is manually pushed to release the mechanical limit of the lamination roller.

[0016] In the above-mentioned mechanical device, a cylinder pin is provided in the center of the cylinder, and when the lamination roller equipment is in operation, the cylinder pin is used to apply pressure to the lamination roller.

[0017] In the above-mentioned mechanical device, an embossing material is provided between the pressing roller and the plate roller.

[0018] In the above-mentioned mechanical device, the cylinder is located above the pressing roller.

[0019] In the above-mentioned mechanical device, the base and the fixing seat are integrally formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the mechanical device of the embodiment of the utility model is shown as follows Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the mechanical device and the roller equipment used in the embodiment of the utility model;

[0022] Figure 3 The structure of the mechanical device of the embodiment of the utility model is shown as follows Figure 2 ;

[0023] Figure 4 The structure of the mechanical device of the embodiment of the utility model is shown as follows Figure 3 ;

[0024] Description of the accompanying drawings: 100 base, 110 fixing seat, 111 fixing groove, 112 fixing hole, 113 pin, 200 cylinder, 210 cylinder pin, 300 adjusting device, 310 movable push rod, 320 adjusting member, 321 plane, 400 pressing roller, 500 plate roller, 600 imprinting material. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below. Figures 1 to 4The embodiment of the present invention provides a mechanical device for preventing rebound of a pressing roller, comprising: a base 100, a cylinder 200, and an adjusting device 300. The base 100 is provided with a fixed seat 110, and the cylinder 200 is fixed to the base 100; the adjusting device 300 is rotatably connected to the fixed seat 110, and the adjusting device 300 includes a movable push rod 310 and an adjusting member 320, and the adjusting member 320 can be rotated out along the movable push rod 310; the adjusting device 300 is located on one side of the pressing roller 400. When the pressing roller 400 is working, the adjusting device 300 can manually move the movable push rod 310 to the direction of the cylinder 200 to push out, and press the adjusting member 320 against the pressing roller 400, thereby preventing the pressing roller 400 from rebounding due to changes in material tension. The present invention forms a mechanical limiting structure by installing the movable push rod 310 on one side of the pressing roller 400 and fixing it with an adjusting screw. This mechanical limiting structure provides rigid support, effectively preventing the rebound of the lamination roller 400 even when the material tension fluctuates significantly, ensuring that the pressure between the lamination roller 400 and the plate roller 500 remains stable, thereby avoiding color difference and deformation of the molded surface. It also avoids pressure imbalance and gaps caused by tension fluctuations, thereby improving printing quality and material integrity. Furthermore, the mechanical device of this application has a simple structure, low maintenance costs, and is suitable for long-term continuous operation. Furthermore, this application is not only applicable to printing and molding equipment, but can also be extended to other fields requiring precise control of lamination pressure, such as composite material manufacturing and laminating machines.

[0026] Further, refer to Figure 2 This figure is a schematic diagram of the structure of applying the mechanical device proposed in this application to a conventional stamping component, wherein a stamping material 600 is provided between the pressing roller 400 and the plate roller 500, and the cylinder 200 is located above the pressing roller 400. The arrows from right to left respectively represent the state of the material before stamping and the state after stamping. During normal operation of the equipment, the stamping material 600 travels at high speed in the direction of the arrow. By designing a movable ejector rod 310 and an adjusting screw on one side of the pressing rubber roller 400, a mechanical limit structure is formed to effectively prevent the pressing rubber roller 400 from rebounding when the material tension fluctuates. Specifically, referring to Figure 1 When the laminating roller 400 starts laminating, the cylinder 200 is pushed out, and the movable push rod 310 is manually moved to the direction of the cylinder 200 pushing out, and the movable push rod 310 is fixed by adjusting the screw to make the laminating rubber roller 400 always maintain a stable pressure during the laminating process. Figure 3After lamination is complete, the movable ejector 310 is manually retracted, releasing the mechanical limit, retracting the cylinder 200, and driving the lamination rubber roller 400 back to its initial position. Furthermore, the base 100, cylinder 200, and adjustment device 300 form a complete mechanical system that effectively prevents the lamination roller 400 from rebounding due to changes in material tension during operation. By manually moving the movable ejector 310 in the direction in which the cylinder 200 pushes out and tightening the adjustment member 320 against the lamination roller 400, the lamination roller 400 maintains stable pressure during the lamination process, thereby improving lamination quality and production efficiency.

[0027] Furthermore, a fixing groove 111 is provided on the fixing seat 110, and the rear end of the movable push rod 310 is clamped in the fixing groove 111. The design of the fixing groove 111 enables the movable push rod 310 to be stably installed on the fixing seat 110, ensuring that the movable push rod 310 will not loosen or shift during operation, thereby improving the stability and reliability of the mechanical device. This application does not limit the connection method between the fixing seat 110 and the base 100. Preferably, the base 100 and the fixing seat 110 are integrally formed. Further, referring to Figure 4 , fixing holes 112 are provided on both sides of the fixing groove 111, and the pin 113 can pass through the movable ejector 310 and the fixing holes 112 to movably connect the movable ejector 310 to the fixed seat 110. Of course, the present invention does not limit the specific connection method between the movable ejector 310 and the fixed seat 110. The movable ejector 310 can also be rotatably connected to the fixed seat 110 through a bearing. Furthermore, the adjustment member 320 is an adjustment screw, and the contact pressure between the movable ejector 310 and the laminating roller 400 can be adjusted by rotating the adjustment screw. The design of the adjustment screw allows the operator to adjust the contact pressure between the movable ejector 310 and the laminating roller 400 according to actual needs, ensuring the uniformity and stability of the pressure during the laminating process, thereby improving the laminating quality and the aesthetics of the product. Of course, the present invention does not limit the specific shape of the adjustment member 320. Preferably, a flat surface 321 is provided at one end of the adjustment member 320. When the laminating roller 400 is working, the flat surface 321 is in contact with the surface of the laminating roller 400. The flat design of the adjustment member 320 ensures close contact between the adjustment member 320 and the surface of the lamination roller 400, reducing friction on the contact surface, improving the stability and consistency of the lamination, and avoiding uneven lamination caused by poor contact. Furthermore, a cylinder pin 210 is provided in the center of the cylinder 200. During operation of the lamination roller 400, the cylinder pin 210 is used to apply pressure to the lamination roller 400. The cylinder pin 210 ensures that the cylinder 200 can stably apply pressure to the lamination roller 400 during the extension and retraction process, improving the reliability and stability of the cylinder 200 and reducing uneven lamination caused by position deviation of the cylinder 200.

[0028] It should be noted that in the description of the present invention, if there are any descriptions of directions, such as up, down, front, back, left, right, etc., the directions or positional relationships indicated are all based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operated in a specific direction, and cannot be understood as a limitation on the present invention.

[0029] In the description of this utility model, "several" means one or more, "more" means two or more, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. If there are descriptions of "first," "second," and so on, these are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A mechanical device for roller pressing to prevent rebound, characterized in that: include: A base (100), wherein a fixing seat (110) is provided on the base (100); a cylinder (200), wherein the cylinder (200) is fixed to the base (100); An adjusting device (300) is rotatably connected to the fixing seat (110), and the adjusting device (300) includes a movable push rod (310) and an adjusting member (320), and the adjusting member (320) can be rotated out along the movable push rod (310); the adjusting device (300) is located on one side of the laminating roller (400), and when the laminating roller (400) is working, the adjusting device (300) can manually move the movable push rod (310) to the direction of the cylinder (200) to push out, and press the adjusting member (320) to the laminating roller (400), so as to prevent the laminating roller (400) from rebounding due to changes in material tension.

2. The mechanical device according to claim 1, characterized in that The fixing seat (110) is provided with a fixing groove (111), and the rear end of the movable push rod (310) is clamped in the fixing groove (111).

3. The mechanical device according to claim 2, characterized in that Fixing holes (112) are provided on both sides of the fixing groove (111), and a pin (113) can pass through the movable push rod (310) and the fixing holes (112) to movably connect the movable push rod (310) to the fixing seat (110).

4. The mechanical device according to claim 1, characterized in that The adjusting member (320) is an adjusting screw, and the contact pressure between the movable push rod (310) and the pressing roller (400) can be adjusted by rotating the adjusting screw.

5. The mechanical device according to claim 1, characterized in that One end of the adjusting member (320) is provided with a plane (321), and when the pressing roller (400) is in operation, the plane (321) is in contact with the surface of the pressing roller (400).

6. The mechanical device according to claim 1, characterized in that Before the laminating roller (400) is recovered, the movable push rod (310) is manually pushed to release the mechanical limit of the laminating roller (400).

7. The mechanical device according to claim 1, characterized in that A cylinder pin (210) is provided at the center of the cylinder (200). When the pressing roller (400) is in operation, the cylinder pin (210) is used to apply pressure to the pressing roller (400).

8. The mechanical device according to claim 1, characterized in that An imprinting material (600) is provided between the pressing roller (400) and the plate roller (500).

9. The mechanical device according to claim 1, characterized in that The cylinder (200) is located above the pressing roller (400).

10. The mechanical device according to claim 1, characterized in that The base (100) and the fixing seat (110) are integrally formed.

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