Tension control device of photogravure press

Abstract

The utility model relates to the technical field of printing machines, in particular to a tension control device of a photogravure press, which comprises a tension control device body and a smoothing component, and the smoothing component comprises a connecting frame, a rotating shaft, a smoothing roller and a mounting seat. The tension control device body is used for maintaining the tension stability of a whole machine system and preventing the situation that paper wrapping the paper guide rollers is broken or wrinkled due to the fact that the distance between the paper guide rollers is large or small, the connecting frame provides mounting conditions for the rotating shaft and the mounting base, the mounting base is arranged, the smoothing roller and the connecting frame are convenient to disassemble and assemble, and the working efficiency is improved. The paper is wound on the rotating shaft, the rotating shaft rotates to enable the paper to be transmitted to the tension control device, the smoothing roller is used for smoothing the transmitted paper, the phenomenon that the paper is bent when being transmitted to the tension control device is avoided, and the problem that when the tension control device is used, the paper is bent in advance and directly folded, and follow-up printing is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a tension control device of a gravure printing machine. Background Art

[0002] The tension control mechanism has a direct impact on the printing quality in gravure printing. During printing, it plays a role in maintaining the stability of the tension of the entire system and ensuring the consistency of the speed of the drive motor in the entire system. In practical applications, it has received due attention from industry professionals.

[0003] At present, the prior art CN209797027U discloses an automatic tension control device for a printing press, including a main body, wherein a first paper guide roller and a second paper guide roller are movably installed inside the main body, and the second paper guide roller is arranged at the lower end of the first paper guide roller, and a tension control device is arranged between the first paper guide roller and the second paper guide roller, and the tension control device is composed of a cylinder and a lifting rod, and the lifting rod is movably installed at the lower end of the cylinder. The utility model is provided with a series of structures to lift and adjust the positions of the two sets of paper guide rollers at any time during the printing process, so as to prevent the paper wrapped outside the paper guide roller from being torn or wrinkled due to the larger or smaller distance between the paper guide rollers, which not only solves the problem of the tightness of the single side of the base paper, but also prevents the occurrence of dead wrinkles at the printing port, so that the automatic tension control device makes the printing effect of the printing press better, thereby reducing the error and improving the quality of the product.

[0004] However, in actual use, it is found that if the paper is bent in advance, it will be folded directly, which will cause great inconvenience to the printing process of the printing press. Utility Model Content

[0005] The utility model aims to provide a tension control device for a gravure printing machine, aiming to solve the problem that when the tension control device is used, the paper is pre-bent, which will directly fold and affect subsequent printing.

[0006] To achieve the above-mentioned purpose, the utility model provides a tension control device for a gravure printing machine, comprising a tension control device body and a smoothing component, wherein the smoothing component is arranged on one side of the tension control device body, and the smoothing component comprises a connecting frame, a rotating shaft, a smoothing roller and a mounting seat; the connecting frame is fixedly connected to the tension control device body and is located on one side of the tension control device body, the rotating shaft is arranged on one side of the connecting frame, the mounting seat is fixedly connected to the connecting frame and is located on one side of the connecting frame, and the smoothing roller is detachably connected to the mounting seat and is located on the side of the mounting seat away from the connecting frame.

[0007] Among them, the mounting seat includes a mounting seat body, a ejector pin and a return spring, the mounting seat body is fixedly connected to the connecting frame and is located on one side of the connecting frame, the ejector pin is slidably connected to the mounting seat body and passes through the mounting seat body, the return spring is fixedly connected to the mounting seat body and to the ejector pin, and is located in the mounting seat body.

[0008] Among them, the rotating shaft includes a rotating shaft and a driving motor, the rotating shaft is rotatably connected to the connecting frame and passes through the connecting frame, the driving motor is fixedly connected to the connecting frame, and the output end of the driving motor is fixedly connected to the rotating shaft and is located on one side of the connecting frame.

[0009] Wherein, the tension control device of the gravure printing machine further comprises a moving component, and the moving component is arranged at the bottom of the tension control device body.

[0010] Among them, the moving component includes a pulley, an adsorption plate and a brake plate, the pulley is rollingly arranged at the bottom of the tension control device body, the adsorption plate is fixedly connected to the tension control device body and is located on the side of the tension control device body close to the pulley, and the brake plate is slidably connected to the tension control device body and is located on the side of the tension control device body close to the pulley.

[0011] Wherein, the brake plate includes a friction pad, a slide plate and a pull ring, the slide plate is slidably connected to the tension control device body and is located on the side of the tension control device body close to the pulley, the pull ring is fixedly connected to the slide plate and is located on the side of the slide plate away from the pulley, and the friction pad is fixedly connected to the slide plate and is located on the side of the slide plate away from the pull ring.

[0012] The utility model discloses a tension control device for a gravure printing machine, wherein the tension control device body is used to maintain the stability of the tension of the whole system, and prevent the paper wrapped outside the paper guide roller from being torn or wrinkled due to the larger or smaller distance between the paper guide rollers. The connecting frame provides installation conditions for the rotating shaft and the mounting seat, and the arrangement of the mounting seat facilitates the disassembly and assembly of the smoothing roller and the connecting frame. The paper is wound around the rotating shaft, and the rotating shaft rotates so that the paper is transferred to the tension control device body. The smoothing roller is used to smooth the transferred paper, and avoid the paper from bending when it is transferred to the tension control device body, so as to solve the problem that when the tension control device is used, the paper is pre-bent, which will directly fold and affect the subsequent printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a structural schematic diagram of a tension control device of a gravure printing machine according to the first embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the connection between a mounting seat of a tension control device of a gravure printing machine and a smoothing roller according to the first embodiment of the utility model.

[0016] Figure 3 It is a structural schematic diagram of a tension control device of a gravure printing machine according to the second embodiment of the utility model.

[0017] In the figure: 101-tension control device body, 102-connecting frame, 103-smoothing roller, 104-mounting seat body, 105-thimble, 106-reset spring, 107-rotating shaft, 108-driving motor, 201-pulley, 202-adsorption plate, 203-friction pad, 204-slide plate, 205-pull ring. DETAILED DESCRIPTION

[0018] The first embodiment of the present application is:

[0019] See also Figure 1-Figure 2 , Figure 1 It is a structural schematic diagram of the utility model. Figure 2 It is a connection diagram of the mounting seat and the smoothing roller of the utility model, including a tension control device body 101 and a smoothing assembly, wherein the smoothing assembly includes a connecting frame 102, a rotating shaft, a smoothing roller 103 and a mounting seat; the mounting seat includes a mounting seat body 104, a pin 105 and a reset spring 106, and the rotating shaft includes a rotating shaft 107 and a driving motor 108. The above scheme solves the problem that when the tension control device is used, the paper is pre-bent and folded directly, which affects the subsequent printing. It can be understood that the above scheme can be used in the scenarios of printing smoothing and tension adjustment.

[0020] With respect to this specific embodiment, the tension control device body 101 is used to maintain the stability of the tension of the entire system, and prevent the paper wrapped outside the paper guide roller from being torn or wrinkled due to the larger or smaller distance between the paper guide rollers. Specifically, the tension control device body 101 includes a main body, and the first paper guide roller and the second paper guide roller are movably installed inside the main body, and the second paper guide roller is arranged at the lower end of the first paper guide roller, and a tension control device is arranged between the first paper guide roller and the second paper guide roller, and the tension control device is composed of a cylinder and a lifting rod, and the lifting rod is movably installed at the lower end of the cylinder; when in use, the staff first inserts the upper end of the cylinder into the mounting seat to install the cylinder on the first paper guide roller, screws the fixing pin into the mounting seat to fix the cylinder on the first paper guide roller, and then inserts the lower end of the lifting rod into the mounting seat. The lifting rod is connected to the second paper guide roller in the connecting seat, and the connecting pin is screwed into the connecting seat to fix one end of the lifting rod to the second paper guide roller. Secondly, the paper is wrapped around the outside of the first paper guide roller and the second paper guide roller, and then the power interface of the printer is powered on to roll the first paper guide roller and the second paper guide roller to transport the paper. During the printing process, the operation of the cylinder drives the lifting rod up and down to lift the second paper guide roller back and forth, and the distance between the first paper guide roller and the second paper guide roller can be adjusted, which can avoid the situation where the distance between the paper guide rollers is too large to tear the paper, and also prevent the situation where the distance between the rollers is too small to cause the paper to be loose and wrinkled. At the same time, when the paper is tightened, the connecting roller rotates to reduce the friction between the paper and the second paper guide roller, avoiding the situation where the paper is damaged, thereby further reducing the waste of paper, reducing costs, and being more practical.

[0021] Among them, the connecting frame 102 is fixedly connected to the tension control device body 101 and is located on one side of the tension control device body 101, the rotating shaft is arranged on one side of the connecting frame 102, the mounting seat is fixedly connected to the connecting frame 102 and is located on one side of the connecting frame 102, the smoothing roller 103 is detachably connected to the mounting seat and is located on the side of the mounting seat away from the connecting frame 102, the connecting frame 102 provides installation conditions for the rotating shaft and the mounting seat, and the setting of the mounting seat facilitates the disassembly and assembly of the smoothing roller 103 and the connecting frame 102, the paper is wound around the rotating shaft, and the rotating shaft rotates so that the paper is transferred to the tension control device body 101, and the smoothing roller 103 is used to smooth the transferred paper to avoid bending of the paper when it is transferred to the tension control device body 101, so as to solve the problem that when the tension control device is used, the paper is pre-bent and folded directly, affecting subsequent printing.

[0022] Secondly, the mounting seat body 104 is fixedly connected to the connecting frame 102 and is located on one side of the connecting frame 102. The ejector pin 105 is slidably connected to the mounting seat body 104 and penetrates the mounting seat body 104. The return spring 106 is fixedly connected to the mounting seat body 104 and is fixedly connected to the ejector pin 105 and is located in the mounting seat body 104. The mounting seat body 104 provides an installation location for the ejector pin 105 and the return spring 106. When installing the smoothing roller 103, the staff uses the hand The staff member pulls the ejector pin 105 to slide outside the mounting seat body 104, so that the ejector pin 105 compresses the reset spring 106. The staff member then inserts the smoothing roller 103 into the mounting seat body 104 by hand and releases the ejector pin 105. At this time, the reset spring 106 resets and drives the ejector pin 105 to reset, and the smoothing roller 103 is firmly supported from both sides, thus completing the installation of the smoothing roller 103. When removing the smoothing roller 103, the smoothing roller 103 can be taken out by pulling the ejector pin 105 again.

[0023] At the same time, the rotating shaft 107 is rotatably connected to the connecting frame 102 and passes through the connecting frame 102. The driving motor 108 is fixedly connected to the connecting frame 102, and the output end of the driving motor 108 is fixedly connected to the rotating shaft 107 and is located on one side of the connecting frame 102. The driving motor 108 is used to start the rotation of the rotating shaft 107. The rotating shaft 107 rotates to feed the paper wound thereon into the tension control device body 101.

[0024] When the smoothing assembly is in use, the staff pulls the ejector pin 105 by hand to slide toward the outside of the mounting seat body 104, so that the ejector pin 105 compresses the reset spring 106. The staff then inserts the smoothing roller 103 into the mounting seat body 104 by hand, releases the ejector pin 105, and the reset spring 106 resets the ejector pin 105, firmly supporting the smoothing roller 103 from both sides. The staff then winds the paper around the rotating shaft 107, starts the drive motor 108, and feeds the paper into the tension control device body 101. During the paper transmission process, the paper is smoothed by the smoothing roller 103.

[0025] The second embodiment of the present application is:

[0026] Based on the first embodiment, please refer to Figure 3 , Figure 3 It is a structural schematic diagram of the utility model. The tension control device of the gravure printing machine described in this embodiment also includes a moving component, and the moving component includes a pulley 201, an adsorption plate 202 and a brake plate, and the brake plate includes a friction pad 203, a slide plate 204 and a pull ring 205.

[0027] According to this specific embodiment, the moving component is disposed at the bottom of the tension control device body 101 . The arrangement of the moving component facilitates the staff to transport the tension control device body 101 .

[0028] Among them, the pulley 201 is rollingly set at the bottom of the tension control device body 101, the adsorption plate 202 is fixedly connected to the tension control device body 101, and is located on the side of the tension control device body 101 close to the pulley 201, the brake plate is slidably connected to the tension control device body 101, and is located on the side of the tension control device body 101 close to the pulley 201. The setting of the pulley 201 is convenient for the staff to transport the tension control device body 101, the adsorption plate 202 is used to adsorb and fix the brake plate, thereby clamping and fixing the pulley 201 to avoid self-slippage of the tension control device body 101 when using it, and the adsorption plate 202 has a magnet.

[0029] Secondly, the skateboard 204 is slidingly connected to the tension control device body 101 and is located on the side of the tension control device body 101 close to the pulley 201. The pull ring 205 is fixedly connected to the skateboard 204 and is located on the side of the skateboard 204 away from the pulley 201. The friction pad 203 is fixedly connected to the skateboard 204 and is located on the side of the skateboard 204 away from the pull ring 205. The setting of the pull ring 205 makes it convenient for the staff to pull the skateboard 204. The skateboard 204 is made of metal and can be adsorbed by the magnet on the adsorption plate 202. The setting of the friction pad 203 is used to brake the pulley 201.

[0030] When the moving component is in use, the staff pushes the tension control device body 101 with their hands, and slides it in the workshop under the action of the pulley 201. When the tension control device body 101 slides to a suitable position, the staff pushes the slide plate 204 toward the pulley 201 with their hands, so that the adsorption plate 202 adsorbs and fixes the slide plate 204, so that the friction pad 203 presses against the pulley 201, brakes the pulley 201, and completes the transportation of the tension control device body 101.

[0031] The above disclosure is only a preferred embodiment of the tension control device of a gravure printing machine of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A tension control device for a gravure printing machine, comprising a tension control device body, characterized in that: It also includes a smoothing component, which is arranged on one side of the tension control device body, and includes a connecting frame, a rotating shaft, a smoothing roller and a mounting seat; The connecting frame is fixedly connected to the tension control device body and is located on one side of the tension control device body, the rotating shaft is arranged on one side of the connecting frame, the mounting seat is fixedly connected to the connecting frame and is located on one side of the connecting frame, and the smoothing roller is detachably connected to the mounting seat and is located on a side of the mounting seat away from the connecting frame.

2. A tension control device for a gravure printing press as claimed in claim 1, characterized in that: The mounting seat includes a mounting seat body, a ejector pin and a return spring. The mounting seat body is fixedly connected to the connecting frame and is located on one side of the connecting frame. The ejector pin is slidably connected to the mounting seat body and passes through the mounting seat body. The return spring is fixedly connected to the mounting seat body and to the ejector pin, and is located in the mounting seat body.

3. A tension control device for a gravure printing machine as claimed in claim 2, characterized in that: The rotating shaft includes a rotating shaft and a driving motor. The rotating shaft is rotatably connected to the connecting frame and passes through the connecting frame. The driving motor is fixedly connected to the connecting frame, and the output end of the driving motor is fixedly connected to the rotating shaft and is located on one side of the connecting frame.

4. A tension control device for a gravure printing press as claimed in claim 3, characterized in that: The tension control device of the gravure printing machine further comprises a moving component, and the moving component is arranged at the bottom of the tension control device body.

5. A tension control device for a gravure printing press as claimed in claim 4, characterized in that: The moving component includes a pulley, an adsorption plate and a brake plate. The pulley is rotatably arranged at the bottom of the tension control device body. The adsorption plate is fixedly connected to the tension control device body and is located on the side of the tension control device body close to the pulley. The brake plate is slidably connected to the tension control device body and is located on the side of the tension control device body close to the pulley.

6. A tension control device for a gravure printing press as claimed in claim 5, characterized in that: The brake plate includes a friction pad, a slide plate and a pull ring. The slide plate is slidably connected to the tension control device body and is located on the side of the tension control device body close to the pulley. The pull ring is fixedly connected to the slide plate and is located on the side of the slide plate away from the pulley. The friction pad is fixedly connected to the slide plate and is located on the side of the slide plate away from the pull ring.

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