A paper flattening device for a laminating machine

Abstract

This invention discloses a paper flattening device for a laminating machine, including a flattening component and a closed-loop flat belt disposed above the flattening component. The flat belt can run along its own closed-loop path and its running direction is perpendicular to the longitudinal direction of the flattening component. The surface of the flattening component facing the flat belt is provided with an arc surface, and the axial direction of the arc surface is consistent with the longitudinal direction of the flattening component. The flat belt is used to press the paper onto the arc surface and run at the same speed as the paper so that the paper passes through the arc surface under pressure.

Description

Technical Field

[0001] This invention relates to the field of laminating machinery technology, specifically to a paper flattening device for a laminating machine. Background Technology

[0002] A laminating machine is a device used to cover a thin film on paper to protect the paper surface. In the current laminating process, some papers need to undergo embossing after lamination before being output and stacked by the paper delivery conveyor platform. The embossing process usually uses patterned steel rollers and wool rollers to press together to create an embossed structure with corresponding patterns on the surface of the laminated paper. Currently, the paper embossed by this structure warps severely and cannot meet the normal operating requirements of subsequent processes such as paper delivery and stacking. Therefore, the paper needs to be flattened. Summary of the Invention

[0003] The purpose of this invention is to provide a paper flattening device for a laminating machine to solve the problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a paper flattening device for a laminating machine, comprising a flattening component 307 and a closed-loop flat belt 304 disposed above the flattening component 307. The flat belt 304 can run along its own closed-loop path and its running direction is perpendicular to the longitudinal direction of the flattening component 307. The surface of the flattening component 307 facing the flat belt 304 is provided with an arc surface 3071. The axial direction of the arc surface 3071 is consistent with the longitudinal direction of the flattening component 307. The flat belt 304 is used to press the paper onto the arc surface 3071 and run at the same speed as the paper so that the paper passes through the arc surface 3071 under pressure.

[0005] Furthermore, the flat belt 304 is wound around the first guide roller 305 and the second guide roller 306. Both ends of the first guide roller 305 and the second guide roller 306 are rotatably supported by the vertical plate 311. The second guide roller 306 is connected to the motor 312 for transmission.

[0006] Furthermore, the paper flattening device of the laminating machine also includes a pressure adjusting component for adjusting the clamping force between the flat belt 304 and the arc surface 3071. The pressure adjusting component includes an adjusting screw 309, a support 308, and a mounting base 310 fixedly connected to both ends of the flattening component 307. The mounting base 310 is movable up and down and installed inside the upright plate 311. The lower end of the adjusting screw 309 is screwed to the mounting base 310. The adjusting screw 309 is rotatably supported by the support 308, and the support 308 is fixedly installed inside the corresponding upright plate 311.

[0007] Furthermore, the paper flattening device of the laminating machine also includes a tension adjusting device for adjusting the tension of the flat belt 304. The tension adjusting device includes a rotating shaft 301 and a support arm 302 mounted on the rotating shaft 301. The free end of the support arm 302 is equipped with a tension wheel 303. The tension wheel 303 cooperates with the inner ring surface of the flat belt 304 and is located above the first guide roller 305 and the second guide roller 306. Both ends of the rotating shaft 301 are connected to the vertical plate 311.

[0008] Furthermore, the paper flattening device of the laminating machine also includes a cylinder 4 located on the outside of the upright plate 311. The output shaft of the cylinder 4 is connected to the outside of the upright plate 311 via a connecting block 3. The cylinder body of the cylinder 4 is used to connect with the object on the laminating machine.

[0009] Furthermore, the flat strip 304 is a plurality of narrow flat strips arranged in parallel along the longitudinal direction of the flattening member 307 and covering the width area of ​​the paper, or a wide flat strip with the same width as the paper.

[0010] The beneficial effects of this invention are as follows: The paper flattening device for a laminating machine provided by this invention is set on the discharge side of the embossing component of the laminating machine. The cylinder body is connected to the corresponding wall plate on the paper receiving and conveying platform. When the paper is laminated and embossed by the embossing roller of the embossing component, it is output along the guide plate set on the outlet side of the embossing roller and enters between the flat belt and the arc surface of the flattening device. The flat belt presses the paper on the arc surface and moves at the same speed as the paper so that the paper passes through the arc surface under pressure. Since the paper slides across the arc surface under pressure, and since the flat belt is a flexible component, when it presses the paper onto the arc surface, the paper will wrap around the arc surface and the paper will fold downward on both sides of the arc surface, thereby correcting and flattening the warped parts during the paper's movement. When a whole sheet of paper passes through the flattening device, the flattening of the whole sheet of paper is completed. The flattening speed is consistent with the working speed of the laminating machine, and has the advantages of good synchronization, fast flattening speed, and good flatness of the paper after flattening. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the structure of the present invention;

[0012] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0013] Figure 3 This is a partial front view of the present invention;

[0014] Figure 4 This is a schematic diagram of the unfolded form of the present invention. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-4 A paper flattening device for a laminating machine includes a flattening component 307 and a closed-loop flat belt 304 disposed above the flattening component 307. The flat belt 304 can run along its own closed-loop path and its running direction is perpendicular to the longitudinal direction of the flattening component 307. The surface of the flattening component 307 facing the flat belt 304 is provided with an arc surface 3071, and the axial direction of the arc surface 3071 is consistent with the longitudinal direction of the flattening component 307. The flat belt 304 is used to press the paper onto the arc surface 3071 and run at the same speed as the paper so that the paper passes through the arc surface under pressure. 3071 Thus, when the paper passes through the arc surface 3071, it actually slides across the surface of the arc surface 3071 under pressure. Since the flat belt 304 is a flexible element, when it presses the paper against the arc surface 3071, it will cause the paper to wrap around the arc surface 3071 and the paper will fold downward on both sides of the arc surface 3071, thereby correcting and flattening the warped parts during the paper's movement. When the entire sheet of paper passes through the flattening element 307, the flattening of the entire sheet of paper is completed.

[0017] Here, the overall cross-sectional shape of the flattened component is not specifically limited; it can be any of the following: circular, elliptical, triangular, or polygonal. Please refer to the relevant documentation for more details. Figure 2 In this embodiment, a triangle is selected with its base facing down. The arc surface 3071 is located at the corner facing the flat band 304, and the arc surface 3071 is tangent to the corresponding two sides.

[0018] Here, the paper's propulsion can be the traction force applied to the paper by the traction device on the laminator. In this case, the flat belt 304 mainly presses the paper against the arc surface 3071 and moves at the same speed as the paper so that the paper can smoothly pass through the area of ​​the arc surface 3071 under pressure to complete the paper flattening. The paper's propulsion can also be obtained directly from the flat belt 304, without the need for the traction device on the laminator to apply traction force to the paper. That is, when the flat belt 304 presses the paper onto the arc surface 3071, the friction between the flat belt 304 and the paper will drive the paper and the flat belt 304 forward together, so that the paper passes through the arc surface 3071 to complete the paper flattening.

[0019] Preferably, the flat belt 304 is wound around the first guide roller 305 and the second guide roller 306. Both ends of the first guide roller 305 and the second guide roller 306 are rotatably supported by the vertical plate 311. The second guide roller 306 is connected to the motor 312. Here, the motor 312 can be a common geared motor, a speed adjustable motor or a servo motor to drive the flat belt 304. The motor 312 and the second guide roller 306 can be connected by any of the existing belt drive, chain drive or coupling drive.

[0020] Preferably, the paper flattening device of this laminating machine further includes a pressure adjusting component for adjusting the clamping force between the flat belt 304 and the arc surface 3071. The pressure adjusting component includes an adjusting screw 309, a support 308, and a mounting base 310 fixedly connected to both ends of the flattening component 307. The mounting base 310 is movable up and down and installed inside the upright plate 311. The lower end of the adjusting screw 309 is screwed to the mounting base 310. The adjusting screw 309 is rotatably supported by the support 308. The support 308 is fixedly installed inside the corresponding upright plate 311. By rotating the adjusting screw 309, the support 308 is moved up and down, thereby moving the flattening component 307 up and down away from or closer to the flat belt 304, thereby adjusting the clamping force between the flat belt 304 and the arc surface 3071. In this way, the clamping force can be adjusted according to the paper thickness and warping degree to achieve the best flattening effect, and the adjustment operation is convenient.

[0021] Preferably, the paper flattening device of this laminating machine further includes a tension adjusting device for adjusting the tension of the flat belt 304. The tension adjusting device includes a rotating shaft 301 and a support arm 302 mounted on the rotating shaft 301. A tensioning wheel 303 is mounted on the free end of the support arm 302. The tensioning wheel 303 mates with the inner surface of the flat belt 304 and is positioned above the first guide roller 305 and the second guide roller 306. Both ends of the rotating shaft 301 are connected to the vertical plate 311. By rotating the rotating shaft 301, the support arm 302 can be adjusted. The pitch angle is adjusted to change the position of the tension wheel 303, which in turn adjusts the tension of the flat belt 304. The significance of this tension adjustment is to adjust the wrap angle of the flat belt 304 with the arc surface 3071 and further control the degree to which the paper folds downward on both sides of the arc surface 3071, so as to adapt to different paper thicknesses and warping degrees and achieve the best flattening effect. The connection and fastening method of the rotating shaft 301 on the vertical plate 311 and the rotation control of the rotating shaft 301 can both adopt existing technologies.

[0022] Preferably, the paper flattening device of this laminating machine also includes a cylinder 4 located on the outside of the upright plate 311. The output shaft of the cylinder 4 is connected to the outside of the upright plate 311 via a connecting block 3. The cylinder body of the cylinder 4 is used to connect with the object on the laminating machine. (See detailed description below.) Figure 1 , Figure 3 and Figure 4In one embodiment of the paper flattening device for this laminating machine, the paper flattening device is installed on the discharge side of the embossing component 1 of the laminating machine. Specifically, the cylinder body of the cylinder 4 is connected to the corresponding wall plate 201 on the paper receiving conveyor platform 2. When there is an embossing process in the laminating process, the paper will warp. At this time, the output shaft of the cylinder 4 is retracted back to its original position, and the upright plate 311 and the components mounted on it descend simultaneously. In this way, the paper that has been laminated and embossed by the embossing roller 101 of the embossing component 1 is output along the guide plate 102 set on the outlet side of the embossing roller 101 and enters between the flat belt 304 and the arc surface 3071 of the flattening component 307. The flat belt 304 presses the paper onto the arc surface 3071 and moves at the same speed as the paper so that the paper passes through the arc surface under pressure. The paper slides across the arc surface 3071 under pressure. At the same time, since the flat belt 304 is a flexible component, when it presses the paper against the arc surface 3071, the paper will wrap around the arc surface 3071 and the paper will fold downward on both sides of the arc surface 3071. Here, the size of the wrapping surface and the degree of folding are adjusted and controlled by the tension adjustment device and the pressure adjustment component, so as to correct and flatten the warped parts during the paper's journey. When a whole sheet of paper passes through the flattening component 307, the flattening of the whole sheet of paper is completed. The paper output from the flattening component 307 directly enters the conveyor belt 202 of the paper receiving platform and is synchronously fed back for paper receiving. The flattening speed is consistent with the working speed of the laminating machine, which has the advantages of good synchronization, fast flattening speed, and good flatness of the paper after flattening.

[0023] If the embossing process is not used in the lamination process (at which time the embossing rollers are far apart and the laminated paper passes directly through the gap between the embossing rollers), the output shaft of the cylinder 4 extends, and the upright plate 311 and the components mounted on it rise simultaneously. In this way, the laminated paper is sent directly from below the flattening part 307 to the conveyor belt 202 for collection.

[0024] Preferably, the flat strip 304 is a series of narrow flat strips arranged side by side along the longitudinal direction of the flattening component 307 and covering the width of the paper, or a wide flat strip with the same width as the paper. This allows for the correction and flattening of the entire width of the paper. (See detailed reference.) Figure 4 This embodiment adopts a structure in which multiple narrow flat strips are arranged in parallel.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper flattening device for a laminating machine, characterized in that: The device includes a flattening component (307) and a closed-loop flat belt (304) disposed above the flattening component (307). The flat belt (304) can run along its own closed-loop path and its running direction is perpendicular to the longitudinal direction of the flattening component (307). The surface of the flattening component (307) facing the flat belt (304) is provided with an arc surface (3071). The axial direction of the arc surface (3071) is consistent with the longitudinal direction of the flattening component (307). The flat belt (304) is used to press the paper onto the arc surface (3071) and run at the same speed as the paper so that the paper passes through the arc surface (3071) under pressure. The flat belt (304) is wound around the first guide roller (305) and the second guide roller (306), and both ends of the first guide roller (305) and the second guide roller (306) are rotatably supported by the vertical plate (311); It also includes a cylinder (4) located on the outside of the upright plate (311), the output shaft of the cylinder (4) is connected to the outside of the upright plate (311) through a connecting block (3), and the cylinder body of the cylinder (4) is used to connect with the object on the laminating machine; It also includes a pressure adjusting assembly for adjusting the clamping force between the flat belt (304) and the arc surface (3071). The pressure adjusting assembly includes an adjusting screw (309), a support (308), and a mounting base (310) fixedly connected to both ends of the flattening component (307). The mounting base (310) is movable up and down and installed inside the upright plate (311). The lower end of the adjusting screw (309) is screwed to the mounting base (310). The adjusting screw (309) is rotatably supported by the support (308). The support (308) is fixedly installed inside the corresponding upright plate (311). The paper flattening device of the laminating machine is set on the discharge side of the embossing component (1) of the laminating machine. When there is an embossing process in the laminating process, the output shaft of the cylinder (4) retracts back to its original position, the vertical plate (311) descends, and the paper that has been laminated and embossed by the embossing roller (101) is output along the guide plate (102) set on the outlet side of the embossing roller (101) and enters between the flat belt (304) and the arc surface (3071) of the flattening part (307). The paper output from the flattening part (307) enters the conveyor belt (202) of the paper receiving conveyor platform. When the embossing process is not used in the lamination process, the embossing rollers are far apart from each other, and the laminated paper passes directly through the gap between the embossing rollers. The output shaft of the cylinder (4) extends out, the upright plate (311) rises, and the laminated paper directly reaches the conveyor belt (202) from below the flattening part (307). It also includes a tension adjusting device for adjusting the tension of the flat belt (304), the tension adjusting device including a rotating shaft (301) and a support arm (302) mounted on the rotating shaft (301), the free end of the support arm (302) being equipped with a tension wheel (303) for adjusting the wrap angle of the flat belt (304) to the arc surface (3071) and controlling the degree to which the paper folds downward on both sides of the arc surface (3071).

2. The paper flattening device for a laminating machine according to claim 1, characterized in that: The second guide roller (306) is connected to the motor (312) for transmission.

3. The paper flattening device for a laminating machine according to claim 2, characterized in that: The tensioning wheel (303) engages with the inner surface of the flat belt (304) and is positioned above the first guide roller (305) and the second guide roller (306). The two ends of the rotating shaft (301) are connected to the vertical plate (311).

4. The paper flattening device for a laminating machine according to claim 1, characterized in that: The flat strip (304) is a series of narrow flat strips arranged in parallel along the longitudinal direction of the flattening member (307) and covering the width of the paper, or a wide flat strip with the same width as the paper.

Images