A paper feeding device for a wide format printing press

Abstract

The present invention discloses a paper feeding device for a wide format printing press, comprising a device housing, a winding roller is movably arranged in the middle of one side of the device housing through a rotating shaft, a paper is wound on the outer surface of the winding roller, a plurality of first rotating disks are evenly fixedly arranged on the outer surface of the device housing through a rotating shaft, a second rotating disk is arranged on the side away from the device housing, a transmission roller is fixedly arranged between the second rotating disks, the paper is wound on the outer surface of the transmission roller, a clamping structure is arranged inside the first rotating disk and the second rotating disk, the clamping structure comprises a clamping groove, a clamping rod, a first extrusion block, a screw rod, a sliding rod, and a second extrusion block, and a plurality of clamping grooves are opened on the side away from the transmission roller on the surface of the second rotating disk. The present invention has a good use effect and can facilitate the rapid disassembly, replacement and installation of the transmission roller.

Description

Technical Field

[0001] The invention relates to the technical field of printing presses, in particular to a paper feeding device for a wide-format printing press. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding (including folding). Its working principle is: first, the text and image to be printed are made into a printing plate, which is then mounted on a printing press. Then, ink is applied to the places on the printing plate where the text and image are, either manually or by a printing press, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating a printed product identical to the printing plate. The invention and development of the printing press has played an important role in the spread of human civilization and culture.

[0003] The transmission rollers used for conveying paper in the printing presses currently in use are often fixed by a large number of screws and flanges. Therefore, when the transmission rollers need to be replaced, a large number of screws need to be removed and installed, which is troublesome to use. Summary of the invention

[0004] The object of the present invention is to provide a paper feeding device for a wide format printing press to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a paper feeding device for a wide-format printing press, comprising a device housing, a winding roller is movably arranged at the middle part of one side of the device housing through a rotating shaft, a paper is wound on the outer surface of the winding roller, a plurality of first rotating disks are evenly fixedly arranged on the outer surface of the device housing through a rotating shaft, a second rotating disk is arranged on the side away from the device housing, a transmission roller is fixedly arranged between the second rotating disks, the paper is wound on the outer surface of the transmission roller, a clamping structure is arranged inside the first rotating disk and the second rotating disk, and the clamping structure comprises a clamping groove, a clamping rod, a first extrusion block, a screw, a sliding rod, A second extrusion block, a plurality of slots are provided on the side of the surface of the second rotating disk away from the transmission roller, a plurality of clamping rods are movably inserted and arranged on the side of the first rotating disk close to the slot, one end of the clamping rod close to the slot is movably clamped and arranged inside the slot, and a first extrusion block is fixedly arranged on the end of the clamping rod away from the slot, a screw is movably arranged on the middle part of the first rotating disk through a bearing, a sliding rod is fixedly arranged on one side of the screw inside the first rotating disk, and a second extrusion block is movably sleeved on the upper and lower ends of the outer surface of the sliding rod, and the second extrusion block is movably sleeved on the outer surface of the screw on the side close to the screw through a thread, and the outer surfaces of the first extrusion block and the second extrusion block fit each other.

[0006] Preferably, a spring is sleeved on the surface of the clamping rod between the first extrusion block and the inner side wall of the first rotating disk, and the clamping rod can be pushed out of the clamping slot by the spring.

[0007] Preferably, twisting blocks are fixedly provided at the upper end and the lower end of the screw rod, and the screw rod can be easily rotated by the twisting blocks, and the two twisting blocks can play a role in balancing the weight.

[0008] Preferably, the threads on both sides of the screw surface are opposite, and the screw with opposite threads can drive the second extrusion block to move in opposite directions along the slide rod when rotating.

[0009] Preferably, a pulley is fixedly provided at one end of the rotating shaft where the first rotating disk is located, and the transmission roller can be conveniently driven to rotate by the pulley.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. When the device of the present invention needs to be replaced with a different transmission roller after being used for a long time, it is only necessary to twist the twisting block with a tool, and then drive the screw rod by twisting. At this time, the screw rod rotates because the threads on both sides of the screw rod surface are opposite, so that the second extrusion block at the upper end can be driven to move downward along the slide rod, and the second extrusion block at the lower end can be driven to move upward along the slide rod, so that the first extrusion block no longer squeezes the second extrusion block. At this time, the first extrusion block can move to the left under the action of the spring, so that the card rod can be driven to be pulled out of the card slot, thereby completing the disassembly of the second rotating disk and the transmission roller. The whole process is convenient and quick.

[0012] 2. When installing a new transmission roller, the present invention only requires aligning the slot on the surface of the second rotating disk with the position of the clamping rod inside the first rotating disk, and then driving the first extrusion block to extrude the second extrusion block by twisting the reverse screw, so that the second extrusion block pushes the clamping rod to move to the right, so that the clamping rod can be inserted into the slot, and the installation can be completed. The whole process is also convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a paper feeding device for a wide format printing press according to the present invention;

[0014] Figure 2 This is an installation view of a transmission roller of a paper feeding device for a wide-format printing press according to the present invention;

[0015] Figure 3 The present invention is a view of the internal structure of a first rotating disk and a second rotating disk of a paper feeding device for a wide-format printing press.

[0016] In the figure: 1. device housing; 2. winding roller; 3. paper; 4. first rotating disk; 5. second rotating disk; 6. transmission roller; 7. card slot; 8. card rod; 9. first extrusion block; 10. screw rod; 11. sliding rod; 12. second extrusion block; 13. spring; 14. twisting block; 15. pulley. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-3 The present invention provides a technical solution: a paper feeding device for a wide-format printing press, comprising a device housing 1, a winding roller 2 is movably arranged at the middle of one side of the device housing 1 through a rotating shaft, a paper 3 is wound on the outer surface of the winding roller 2, a plurality of first rotating disks 4 are evenly fixedly arranged on the outer surface of the device housing 1 through a rotating shaft, a second rotating disk 5 is arranged on the side of the plurality of first rotating disks 4 away from the device housing 1, a transmission roller 6 is fixedly arranged between the second rotating disks 5, the paper 3 is wound on the outer surface of the transmission roller 6, a clamping structure is arranged inside the first rotating disk 4 and the second rotating disk 5, the clamping structure comprises a clamping slot 7, a clamping rod 8, a first extrusion block 9, a screw rod 10, a sliding rod 11, and a second extrusion block 12, the A plurality of slots 7 are provided on the side of the surface of the second rotating disk 5 away from the transmission roller 6, a plurality of clamping rods 8 are movably inserted and arranged on the side of the first rotating disk 4 close to the slot 7, one end of the clamping rod 8 close to the slot 7 is movably clamped and arranged inside the slot 7, a first extrusion block 9 is fixedly arranged on the end of the clamping rod 8 away from the slot 7, a screw 10 is movably arranged through a bearing in the middle part of the first rotating disk 4, a sliding rod 11 is fixedly arranged on one side of the screw 10 inside the first rotating disk 4, and a second extrusion block 12 is movably sleeved on the upper and lower ends of the outer surface of the sliding rod 11, and the second extrusion block 12 is movably sleeved on the outer surface of the screw 10 through a thread on the side close to the screw 10, and the outer surfaces of the first extrusion block 9 and the second extrusion block 12 fit each other.

[0019] A spring 13 is sleeved on the surface of the clamping rod 8 between the first extrusion block 9 and the inner side wall of the first rotating disk 4, and the clamping rod 8 can be pushed out of the clamping slot 7 by the spring 13. The upper and lower ends of the screw rod 10 are fixedly provided with twisting blocks 14, and the screw rod 10 can be conveniently rotated by the twisting blocks 14. At the same time, the two twisting blocks 14 can play a role in balancing the weight. The threads on both sides of the surface of the screw rod 10 are opposite. The screw rod 10 with opposite threads can drive the second extrusion block 12 to move in opposite directions along the slide rod 11 when rotating. A pulley 15 is fixedly provided at one end of the rotating shaft where the first rotating disk 4 is located, and the pulley 15 can conveniently drive the transmission roller 6 to rotate.

[0020] Working principle: When the device is in use, the transmission roller 6 can be rotated to play the role of paper feeding and conveying the paper 3 to be printed. When the device is used for a long time and a different transmission roller 6 needs to be replaced, it is only necessary to use a tool to twist the twisting block 14, and then drive the screw 10 by twisting. At this time, the screw 10 rotates. Since the threads on both sides of the surface of the screw 10 are opposite, the second extrusion block 12 at the upper end can be driven to move downward along the slide rod 11, and the second extrusion block 12 at the lower end can be driven to move upward along the slide rod 11, so that the first extrusion block 9 no longer squeezes the second extrusion block 12. At this time, the first extrusion block 9 can move to the left under the action of the spring 13. The card rod 8 can be driven to be pulled out from the card slot 7, thereby completing the disassembly of the second rotating disk 5 and the transmission roller 6. The whole process is convenient and fast. When installing a new transmission roller 6, it is only necessary to align the card slot 7 on the surface of the second rotating disk 5 with the card rod 8 inside the first rotating disk 4, and then reverse the screw 10 by twisting the block 14 to drive the first extrusion block 9 to extrude the second extrusion block 12, so that the second extrusion block 12 pushes the card rod 8 to move to the right, so that the card rod 8 can be inserted into the card slot 7, and the installation can be completed. The whole process is also convenient and fast. This is the working principle of a paper feeding device for a wide-format printing machine according to the present invention.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper feeding device for a wide format printing press, comprising a device housing (1), characterized in that: A winding roller (2) is movably arranged at the middle of one side of the device housing (1) via a rotating shaft, and a paper (3) is wound around the outer surface of the winding roller (2). A plurality of first rotating disks (4) are evenly and fixedly arranged on the outer surface of the device housing (1) via a rotating shaft, and a second rotating disk (5) is arranged on a side away from the device housing (1) of the plurality of first rotating disks (4). A transmission roller (6) is fixedly arranged between the second rotating disks (5), and the paper (3) is wound around the outer surface of the transmission roller (6). A clamping structure is arranged inside the first rotating disk (4) and the second rotating disk (5), and the clamping structure comprises a clamping groove (7), a clamping rod (8), a first extrusion block (9), a screw rod (10), a sliding rod (11), and a second extrusion block (12). The second rotating disk (5) is arranged on a side away from the transmission roller (6). A plurality of slots (7) are provided on the side of the first rotating disk (4), a plurality of clamping rods (8) are movably inserted and arranged on the side of the first rotating disk (4) close to the slots (7), one end of the clamping rod (8) close to the slots (7) is movably clamped and arranged inside the slots (7), and a first extrusion block (9) is fixedly arranged on the end of the clamping rod (8) away from the slots (7), a screw rod (10) is movably arranged in the middle part of the first rotating disk (4) through a bearing, a sliding rod (11) is fixedly arranged on one side of the screw rod (10) inside the first rotating disk (4), and a second extrusion block (12) is movably sleeved on the upper and lower ends of the outer surface of the sliding rod (11), and the second extrusion block (12) is movably sleeved on the outer surface of the screw rod (10) on the side close to the screw rod (10) through a thread, and the outer surfaces of the first extrusion block (9) and the second extrusion block (12) are in contact with each other.

2. The paper feeding device for a wide format printing press according to claim 1, characterized in that: A spring (13) is sleeved on the surface of the clamping rod (8) between the first extrusion block (9) and the inner side wall of the first rotating disk (4).

3. The paper feeding device for a wide format printing press according to claim 1, characterized in that: The upper end and the lower end of the screw rod (10) are both fixedly provided with a twisting block (14).

4. The paper feeding device for a wide format printing press according to claim 1, characterized in that: The threads on both sides of the surface of the screw rod (10) are opposite to each other.

5. The paper feeding device for a wide format printing press according to claim 1, characterized in that: A belt pulley (15) is fixedly arranged at one end of the rotating shaft where the first rotating disk (4) is located.

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