Automatic paper feeding device of printing machine

Abstract

The utility model discloses an automatic paper feeding device of a printing machine, which relates to the technical field of printing machine auxiliary equipment, and comprises a support frame, the outer wall of the support frame is fixedly connected with a printing machine main body, the outer wall of the top of the support frame is fixedly connected with a limiting block, and the outer wall of the support frame is provided with a cleaning mechanism. The cleaning mechanism comprises a motor, the outer wall of the motor is fixedly connected with the outer wall of the supporting frame, a second limiting shaft is arranged on the rotating disc, when the device needs to be used, the motor is started, due to the fact that a plurality of second gears are meshed with one another, the motor rotates to drive a conveying rod at the lower end to rotate so that the second gears at the lower end can rotate, and the conveying rod is driven to rotate. And a first gear at the upper end is driven to rotate to drive a second gear at the upper end to rotate to enable a conveying rod at the upper end to rotate, the conveying rod rotates to convey printing paper in the middle, the printing paper can be conveyed, meanwhile, in the conveying process, the printing paper can be cleaned, and dust, paper scraps, oil stains and other impurities on the surface of the paper can be removed.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing press auxiliary equipment, and particularly relates to an automatic paper feeding device for a printing press. Background Art

[0002] According to a disclosed patent with the publication number CN209224733U, a paper feeding device for a printing press includes a printing press and a paper feeding device. The paper feeding device includes symmetrically arranged guide rails. A transmission belt is provided on the bottom surface of the guide rails. Mounting columns are provided on the guide rails. A rotating motor is provided on the wall of the mounting column. A roller is provided at the lower end of the mounting column. By adjusting the telescopic cylinder and the rotating motor, the mounting block reaches a suitable position to install the paper roll and then transports it to the paper inlet for operation, avoiding the risk of damage to the paper and the machine caused by manual handling, saving time and effort. However, there are still the following deficiencies:

[0003] When the above device is in use, it only simply positions the printing paper roll. However, during the subsequent transportation of the printing paper, since there may be impurities such as dust and paper scraps remaining on the printing paper, and the above device is not convenient for cleaning it, it may cause spots, ghosting, etc. on the subsequently printed paper, affecting the user's visual experience. Therefore, we propose an automatic paper feeding device for a printing press. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic paper feeding device for a printing press. Through a cleaning mechanism and a positioning mechanism, it solves the problem that when the existing device is in use, it only simply positions the printing paper roll. However, during the subsequent transportation of the printing paper, since there may be impurities such as dust and paper scraps remaining on the printing paper, and the existing device is not convenient for cleaning it, it may cause spots, ghosting, etc. on the subsequently printed paper, affecting the user's visual experience.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is an automatic paper feeding device for a printing press, including a support frame. The outer wall of the support frame is fixedly connected with a printing press main body. The top outer wall of the support frame is fixedly connected with a limiting block. A cleaning mechanism is arranged on the outer wall of the support frame;

[0007] The cleaning mechanism includes a motor, the outer wall of the motor is fixedly connected to the outer wall of the support frame, several conveying rods are rotatably connected to the inner wall of one end of the support frame close to the motor, the outer wall of the conveying rod at the lower end is fixedly connected to the bottom output end of the motor, a limiting shaft is rotatably connected to the inner wall of the other end of the support frame away from the motor, a turntable is fixedly connected to the outer wall of the limiting shaft, a second limiting shaft is fixedly connected to the outer wall of the turntable, a connecting rod is rotatably connected to the outer wall of the second limiting shaft, a third limiting shaft is rotatably connected to the inner wall of the end of the connecting rod away from the second limiting shaft, a rack is rotatably connected to the outer wall of the third limiting shaft, and a limiting groove is provided in the inner wall of the rack.

[0008] Further, the inner wall of the limiting groove is slidably connected to the outer wall of the support frame, a threaded rod is rotatably connected to the inner wall of the support frame, a gear is fixedly connected to the outer wall of the threaded rod close to the rack, and the outer wall of the gear is meshed with the outer wall of the rack.

[0009] Further, a brush plate is threadedly connected to the outer wall of the threaded rod, the outer wall of the brush plate is slidably connected to the inner wall of the support frame, and pulley wheels are fixedly connected to the outer walls of the conveying rod at the lower end and the limiting shaft.

[0010] Further, a belt is connected to the outer walls of the pulley wheels in a transmission manner, and second gears are fixedly connected to the outer walls of several conveying rods close to the pulley wheels, and a positioning mechanism is arranged on the outer wall of the support frame.

[0011] Further, the positioning mechanism includes a placing rod, the outer wall of the placing rod is slidably connected to the inner wall of the limiting block, and several second chutes are provided in the inner wall of the placing rod.

[0012] Further, a bidirectional threaded rod is rotatably connected to the inner wall of the placing rod, several second limiting blocks are threadedly connected to the outer wall of the bidirectional threaded rod, and the outer walls of several second limiting blocks are slidably connected to the inner walls of the second chutes.

[0013] Further, telescopic rods are slidably connected to the outer walls of several limiting blocks, the outer walls of the telescopic rods are slidably connected to the inner wall of the placing rod, and springs are fixedly connected to the outer walls of the telescopic rods.

[0014] Further, inserting rods are slidably connected to the inner walls of several limiting blocks, second springs are fixedly connected to the outer walls of the inserting rods, and the outer walls of the second springs are fixedly connected to the outer walls of the limiting blocks.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model sets a limit shaft 2 on the turntable. When the equipment needs to be used, the motor is started. Since the multiple gears 2 are meshed with each other, the rotation of the motor will drive the lower conveying rod to rotate, so that the lower gear 2 rotates, and then drives the upper gear 2 to rotate, so that the upper conveying rod rotates. The rotation of the conveying rod can convey the printing paper placed in the middle. The rotation of the conveying rod at the lower end will drive the upper pulley to rotate and the belt to rotate. After the printing paper roll is installed, the printing paper can be conveyed. At the same time, during the conveying process, the printing paper can be cleaned to remove impurities such as dust and paper scraps on the surface of the paper, so as to prevent impurities from affecting the transfer and drying of ink, and avoid quality problems such as printing spots and paste.

[0017] 2. The utility model is provided with a bidirectional threaded rod in the placement rod. When the equipment is in use, after the printed paper on the placement rod is used up, multiple insertion rods are pulled outward at the same time. The movement of the insertion rod will compress the second spring. When the insertion rod is completely pulled out of the telescopic rod, the telescopic rod can be removed as a whole and replaced with a new placement rod as a whole. The second spring will always press the insertion rod through its own elastic force to make it inserted in the telescopic rod to prevent the telescopic rod from sliding out by itself. During the use of the placement rod, the position of the printed paper roll can be fixed to prevent the printed paper roll from being displaced or even falling off during the subsequent transportation process, affecting the printing of the printing press. At the same time, the printed paper can always be kept in the center to avoid problems such as pattern dislocation and ghosting during printing.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the cleaning mechanism of the utility model;

[0022] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a cross-sectional view of the bidirectional threaded rod structure of the utility model;

[0024] Figure 5This is a cross-sectional view of the plug rod structure of the utility model.

[0025] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0026] 1. Support frame; 101. Printing machine main body; 102. Limit block; 2. Cleaning mechanism; 201. Motor; 202. Conveyor rod; 203. Limit shaft; 204. Turntable; 205. Second limit shaft; 206. Connecting rod; 207. Third limit shaft; 208. Rack; 209. Belt; 210. Limit groove; 211. Threaded rod; 212. Gear; 213. Brush plate; 214. Pulley; 215. Second gear; 3. Positioning mechanism; 301. Placing rod; 302. Second chute; 303. Bidirectional threaded rod; 304. Second limit block; 305. Telescopic rod; 306. Spring; 307. Plug rod; 308. Second spring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-5 As shown, the present utility model is an automatic paper feeding device for a printing machine, including a support frame 1. The outer wall of the support frame 1 is fixedly connected with a printing machine main body 101. The top outer wall of the support frame 1 is fixedly connected with a limit block 102. A cleaning mechanism 2 is arranged on the outer wall of the support frame 1. By providing the limit block 102, it is convenient for the user to install the placing rod 301 and can prevent the placing rod 301 from shifting after installation.

[0029] The cleaning mechanism 2 includes a motor 201, the outer wall of the motor 201 is fixedly connected to the outer wall of the support frame 1. The inner wall of one end of the support frame 1 close to the motor 201 is rotatably connected with a plurality of conveying rods 202. The outer wall of the lower conveying rod 202 is fixedly connected to the bottom output end of the motor 201. The conveying rod 202 can convey the printing paper. When a plurality of conveying rods 202 rotate, the printing paper in the middle of the conveying rods 202 can be conveyed into the printing machine main body 101 by itself. The inner wall of the end of the support frame 1 far from the motor 201 is rotatably connected with a limiting shaft 203. A turntable 204 is fixedly connected to the outer wall of the limiting shaft 203. A second limiting shaft 205 is fixedly connected to the outer wall of the turntable 204. The second limiting shaft 205 can limit the position of the connecting rod 206, so that the connecting rod 206 can only make a circular motion around the second limiting shaft 205, and at the same time, it can prevent the connecting rod 206 from falling off. The outer wall of the second limiting shaft 205 is rotatably connected with a connecting rod 206. The inner wall of the end of the connecting rod 206 far from the second limiting shaft 205 is rotatably connected with a third limiting shaft 207. The outer wall of the third limiting shaft 207 is rotatably connected with a rack 208. A limiting groove 210 is opened in the inner wall of the rack 208. By providing the limiting groove 210, when the limiting groove 210 slides in the support frame 1, the movement track of the rack 208 can be limited, and at the same time, it can prevent the rack 208 from falling off.

[0030] The inner wall of the limiting groove 210 is slidably connected to the outer wall of the support frame 1. A threaded rod 211 is rotatably connected to the inner wall of the support frame 1. A gear 212 is fixedly connected to the outer wall of the threaded rod 211 close to the rack 208. The outer wall of the gear 212 is engaged with the outer wall of the rack 208. Since the gear 212 and the rack 208 are engaged with each other, when the rack 208 reciprocates left and right, it will drive the gear 212 to rotate the cleaning mechanism 2 reciprocally. A brush plate 213 is threadedly connected to the outer wall of the threaded rod 211. The outer wall of the brush plate 213 is slidably connected to the inner wall of the support frame 1. Belt pulleys 214 are fixedly connected to the outer walls of the lower conveying rod 202 and the limiting shaft 203. The belt pulleys 214 can limit the position of the belt 209, prevent the belt 209 from falling off during the transmission process, and at the same time, the belt pulleys 214 can drive the belt 209. The outer wall of the belt pulley 214 is drivingly connected with a belt 209. Second gears 215 are fixedly connected to the outer walls of a plurality of conveying rods 202 close to the belt pulley 214. A positioning mechanism 3 is arranged on the outer wall of the support frame 1. The second gears 215 can drive the conveying rods 202. Since the upper and lower second gears 215 are engaged with each other, when the second gear 215 on the upper end of the lower conveying rod 202 rotates, it will drive the second gear 215 on the upper end to rotate, so that the upper conveying rod 202 rotates.

[0031] The positioning mechanism 3 includes a placement rod 301. The outer wall of the placement rod 301 is slidably connected to the inner wall of the limit block 102. A plurality of second chutes 302 are provided on the inner wall of the placement rod 301. A bidirectional threaded rod 303 is rotatably connected to the inner wall of the placement rod 301. The second chutes 302 can limit the movement trajectory of the second limit block 304, enabling it to slide only within the second chutes 302. At the same time, it can make the movement process of the second limit block 304 more stable. A plurality of second limit blocks 304 are threadedly connected to the outer wall of the bidirectional threaded rod 303. The outer walls of the plurality of second limit blocks 304 are all slidably connected to the inner wall of the second chutes 302. A telescopic rod 305 is slidably connected to the outer walls of the plurality of limit blocks 102. The outer wall of the telescopic rod 305 is slidably connected to the inner wall of the placement rod 301. The telescopic rod 305 can limit the movement trajectory of the spring 306, preventing the spring 306 from breaking during the telescopic process. A spring 306 is fixedly connected to the outer wall of the telescopic rod 305. A plug rod 307 is slidably connected to the inner walls of the plurality of limit blocks 102. A second spring 308 is fixedly connected to the outer wall of the plug rod 307. The outer wall of the second spring 308 is fixedly connected to the outer wall of the limit block 102. The second spring 308 will drive the plug rod 307 to always be inserted on the telescopic rod 305 through its own elastic force, thereby preventing the telescopic rod 305 from falling off by itself.

[0032] A specific application of this embodiment is as follows:

[0033] When the staff needs to use the device, they first install the rolled printing paper roll on the placement rod 301, and then rotate the bidirectional threaded rod 303. The rotation of the bidirectional threaded rod 303 will drive multiple limit blocks 204 to move toward the middle in the slide groove 202 at the same time, thereby clamping the printing paper roll to keep it in the center position. Then, one end of the paper roll is passed through the conveying rods 202 and sent to the inside of the printing machine body 101, and the motor 201 is started. Since the multiple gears 215 are meshed with each other, the rotation of the motor 201 will drive the lower end of the conveying rod 202 to rotate, so that the lower end of the gear 215 can rotate. 15 rotates, thereby driving the upper gear 215 to rotate so that the upper conveying rod 202 rotates. The conveying rod 202 rotates to convey the printed paper placed in the middle. The lower conveying rod 202 rotates and drives the upper pulley 214 to rotate so that the belt 209 rotates. The belt 209 rotates and drives the lower pulley 214 to rotate, thereby rotating the limit shaft 203. The rotation of the limit shaft 203 drives the turntable 204 to rotate so that the limit shaft 205 performs an eccentric circular motion around the limit shaft 203. The rotation of the limit shaft 205 pulls the limit shaft 3 207 to move so that the rack 208 moves on the support frame 1, and the support frame 1 slides in the limiting groove 210, which can convert the circular motion trend of the rack 208 into a left and right linear motion along the direction of the limiting groove 210. The left and right reciprocating motion of the rack 208 drives the gear 212 to rotate back and forth, thereby causing the threaded rod 211 to rotate back and forth, so that the brush plate 213 slides back and forth in the support frame 1 and cleans the printed paper transported above the brush plate 213. When the printed paper on the placement rod 301 is used up, multiple insertion rods 307 are pulled outward at the same time. The movement of the insertion rod 307 compresses the spring 2 308. When After the insertion rod 307 is completely pulled out from the telescopic rod 305, the telescopic rod 305 can be removed as a whole and replaced with a new placement rod 301 as a whole. The spring 308 will always press the insertion rod 307 through its own elastic force to make it inserted into the telescopic rod 305, preventing the telescopic rod 305 from sliding out by itself. During the use of the placement rod 301, the spring 306 will always press the telescopic rod 305 to make it inserted into the placement rod 301, fix the position of the placement rod 301, and prevent the printed paper roll on the placement rod 301 from driving the placement rod 301 to rotate during the transportation process, causing the placement rod 301 to fall off.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. Automatic paper feeding device for printing press, including a support frame (1), characterized in that: The outer wall of the support frame (1) is fixedly connected to a printing machine body (101), the top outer wall of the support frame (1) is fixedly connected to a limit block (102), and the outer wall of the support frame (1) is provided with a cleaning mechanism (2); The cleaning mechanism (2) comprises a motor (201), the outer wall of the motor (201) being fixedly connected to the outer wall of the support frame (1), the inner wall of one end of the support frame (1) close to the motor (201) being rotatably connected to a plurality of conveying rods (202), the outer wall of the conveying rods (202) at the lower end being fixedly connected to the bottom output end of the motor (201), the inner wall of one end of the support frame (1) away from the motor (201) being rotatably connected to a limiting shaft (203), the limiting shaft ( The outer wall of the rotating disk (204) is fixedly connected to the limiting axis (205), the outer wall of the rotating disk (204) is fixedly connected to the limiting axis (205), the outer wall of the limiting axis (205) is rotatably connected to the connecting rod (206), the inner wall of one end of the connecting rod (206) away from the limiting axis (205) is rotatably connected to the limiting axis (207), the outer wall of the limiting axis (207) is rotatably connected to the rack (208), and the inner wall of the rack (208) is provided with a limiting groove (210).

2. The automatic paper feeding device for a printing press according to claim 1, characterized in that, The inner wall of the limiting groove (210) is slidably connected to the outer wall of the support frame (1); the inner wall of the support frame (1) is rotatably connected to a threaded rod (211); the outer wall of one end of the threaded rod (211) close to the rack (208) is fixedly connected to a gear (212); the outer wall of the gear (212) is meshed with the outer wall of the rack (208).

3. The automatic paper feeding device for a printing press according to claim 2, wherein The outer wall of the threaded rod (211) is threadedly connected to a brush plate (213), the outer wall of the brush plate (213) is slidably connected to the inner wall of the support frame (1), and the outer wall of the conveying rod (202) at the lower end and the outer wall of the limiting shaft (203) are both fixedly connected to a pulley (214).

4. The automatic paper feeding device for a printing press according to claim 3, wherein, The outer wall of the pulley (214) is connected to a belt (209) for transmission, the outer walls of one end of a plurality of conveying rods (202) close to the pulley (214) are fixedly connected to a gear 2 (215), and the outer wall of the support frame (1) is provided with a positioning mechanism (3).

5. The automatic paper feeding device for a printing press according to claim 4, wherein The positioning mechanism (3) comprises a placement rod (301), the outer wall of the placement rod (301) is slidably connected to the inner wall of the limit block (102), and the inner wall of the placement rod (301) is provided with a plurality of second sliding grooves (302).

6. The automatic paper feeding device for a printing press according to claim 5, characterized in that, The inner wall of the placement rod (301) is rotatably connected to a bidirectional threaded rod (303), and the outer wall of the bidirectional threaded rod (303) is threadedly connected to a plurality of second limit blocks (304), and the outer walls of the plurality of second limit blocks (304) are slidably connected to the inner wall of the second slide groove (302).

7. The automatic paper feeding device for a printing press according to claim 6, characterized in that, The outer walls of the plurality of limit blocks (102) are slidably connected to telescopic rods (305), the outer walls of the telescopic rods (305) are slidably connected to the inner walls of the placement rods (301), and the outer walls of the telescopic rods (305) are fixedly connected to springs (306).

8. The automatic paper feeding device for a printing press according to claim 7, characterized in that, The inner walls of several of the limiting blocks (102) are all slidably connected with insertion rods (307). A second spring (308) is fixedly connected to the outer wall of the insertion rod (307), and the outer wall of the second spring (308) is fixedly connected to the outer wall of the limiting block (102).

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