Paper transferring mechanism of offset press

Abstract

The utility model provides a paper transfer mechanism of an offset press, which belongs to the field of offset presses and comprises a conveying part, a control box fixedly connected to the outer wall of the conveying part and a conveying belt arranged in the conveying part, a paper transfer assembly is arranged on the outer wall of the conveying part, and a swing assembly is arranged on the outer wall of the paper transfer assembly. The paper transferring assembly is composed of a moving unit and a supporting unit. According to the paper transferring roller replacing device, by arranging an electric push rod and a telescopic rod, the electric push rod can drive a first motor to move through a square plate by controlling operation of the electric push rod, so that a clamping block is separated from a clamping groove, and at the moment, a damaged paper transferring roller can be replaced; due to the fact that the outer wall of the bottom ring abuts against the outer wall of the paper transferring roller, the telescopic rod can support the paper transferring roller through the bottom ring, and the situation that the paper transferring roller collides with a conveying belt, and consequently the conveying belt is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the field of offset printing machines, in particular to a paper delivery mechanism of an offset printing machine. Background Art

[0002] The offset printing press is a type of lithographic printing press. During printing, the printed image is first printed on the rubber cylinder from the printing plate, and then transferred to the paper by the rubber cylinder. The swing ball is an important component of the offset printing press. Its main function is to control the position of the paper during the paper conveying process, ensuring that the paper can accurately enter the printing unit, thereby ensuring the accuracy and quality of printing.

[0003] Chinese patent announcement No. CN207310822U discloses a paper feeding mechanism of an offset printing machine. By starting the motor behind the swinging tooth ball, the swinging tooth ball can rotate and make a swinging motion. In this way, when the paper to be offset printed is under the action of the swinging tooth ball, the paper to be offset printed can be delivered, thereby completing the paper feeding operation. When the paper to be offset printed is thicker, the gap between the lower fixed plate and the conveyor belt can be adjusted by sliding the rack so that the positioning wheel under the paper jamming mechanism is in close contact with the paper to be offset printed.

[0004] In the above-mentioned paper delivery structure, the swinging tooth ball is supported by a swinging rod. Since the swinging rod is connected to the support rod, and the support rod is fixedly connected to the bottom of the control box, the support rod cannot be adjusted in angle. When the support rod cannot be adjusted in angle, if the swinging rod is in a movable connection with the support rod, the swinging rod will rotate around the connection between the support rod and drive the swinging tooth ball to adjust its position. However, there is no limit structure on the outer wall of the swinging rod. Therefore, although the swinging tooth ball can be adjusted in position, it will eventually drive the swinging tooth ball perpendicular to the surface of the conveyor belt due to its own weight. Therefore, it is impossible for the swinging tooth ball to maintain the gap for rotating paper delivery after completing the spacing adjustment; if the swinging rod is fixedly connected to the support rod, the swinging rod can support and stabilize the swinging tooth ball, but the swinging tooth ball cannot adjust the distance from the conveyor belt as the thickness of the paper changes. How to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a paper delivery mechanism of an offset printing machine, aiming to improve the problem of how the paper conveying structure can be adjusted according to the thickness of the paper.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a paper delivery mechanism of an offset printing machine, comprising a conveying member, a control box fixedly connected to the outer wall of the conveying member and a conveying belt arranged inside the conveying member, the outer wall of the conveying member is provided with a paper delivery component, and the outer wall of the paper delivery component is provided with a swing component.

[0008] The paper delivery assembly consists of a moving unit and a supporting unit. The moving unit is located on the outer wall of the conveying member, and the supporting unit is located on the outer wall of the conveying member.

[0009] Preferably, the moving unit includes an outer frame, a square plate, an electric push rod, a motor 1, a card block, a paper delivery roller and a card slot, the outer frame is fixedly connected to the outer wall of the conveying member, the square plate is slidably connected to the outer wall of the conveying member, the electric push rod is fixedly connected to the inner wall of the outer frame, the motor 1 is installed on the outer wall of the square plate, the card block is fixedly connected to the output end of the motor 1, the paper delivery roller is arranged above the conveyor belt, and the card slot is opened on the outer wall of the paper delivery roller.

[0010] By adopting the above technical solution, the square plate can slide on the outer wall of the conveying member, and the clamping block can be driven to rotate when the motor is running.

[0011] Preferably, the outer wall of the square plate is slidably connected to the inner wall of the outer frame, the output end of the electric push rod is fixedly connected to the outer wall of the square plate, and the clamping block is clamped in the clamping slot.

[0012] By adopting the above technical solution, the square plate can slide inside the outer frame, and the electric push rod can be controlled to operate, so that the electric push rod drives the square plate to move. When the motor drives the card block to rotate, it will drive the paper delivery roller to rotate through the card slot.

[0013] Preferably, the supporting unit includes a bearing, a telescopic rod, a bottom ring, a top ring and a cover, the bearing is installed on the outer wall of the paper delivery roller, the telescopic rod is arranged below the bearing, the bottom ring is clamped on the bottom of the outer wall of the bearing, the top ring is rotatably connected to the outer wall of the bottom ring, and the cover is installed on the outer wall of the bottom ring.

[0014] By adopting the above technical solution, the bearing is clamped into the inside of the bottom ring, so that the position of the paper delivery roller can be limited, and the top ring can rotate on the top of the bottom ring.

[0015] Preferably, the top end of the telescopic rod is fixedly connected to the bottom of the bottom ring, and the outer wall of the bottom ring and the outer wall of the top ring are both slidably connected to the inner wall of the cover.

[0016] By adopting the above technical solution, the telescopic rod can support the paper delivery roller through the bottom ring, and the top ring cooperates with the bottom ring to drive the telescopic rod to extend and retract when the paper delivery roller changes position, and the cover can be moved by sliding to close the bottom ring and the top ring.

[0017] Preferably, the swing assembly includes motor 2, a swing plate, a slide rail and an outer ring, wherein motor 2 is fixedly connected to the outer wall of the square plate, the swing plate is rotatably connected to the outer wall of the square plate, the slide rail is opened inside the square plate, and the outer ring is slidably connected to the inside of the slide rail.

[0018] By adopting the above technical solution, the swing plate can rotate on the outer wall of the square plate, and the outer ring can rotate inside the slide rail.

[0019] Preferably, the output end of the motor 2 passes through the square plate and is fixedly connected to the outer wall of the swing plate, the motor 1 passes through the swing plate and is fixedly connected to the swing plate, and the output shaft of the motor 1 passes through the outer ring and is rotatably connected to the inner wall of the outer ring.

[0020] By adopting the above technical solution, when the motor 2 is running, it can drive the swing plate to rotate, and when the swing plate rotates, it can drive the motor 1 to rotate.

[0021] The beneficial effects of the utility model are:

[0022] 1. By setting an electric push rod and a telescopic rod, the operation of the electric push rod can be controlled so that the electric push rod drives the motor 1 to move through the square plate, so that the card block is separated from the card slot. At this time, the damaged paper delivery roller can be replaced. At the same time, when the motor 1 cannot support the paper delivery roller through the card block, the outer wall of the bottom ring abuts against the outer wall of the paper delivery roller. Therefore, the telescopic rod will support the paper delivery roller through the bottom ring to avoid the collision between the paper delivery roller and the conveyor belt, which will cause damage to the conveyor belt.

[0023] 2. By setting a swing plate, the operation of motor 2 is controlled so that motor 2 drives the swing plate to rotate. When the swing plate rotates, it drives motor 1 to adjust the angle. Since the swing plate drives motor 1 to rotate around motor 2, the paper delivery roller will move in a circle through the card block and the card slot as the position of motor 1 changes. At this time, the distance between the paper delivery roller and the conveyor belt will change, so that the paper delivery roller can transport paper of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of a paper delivery mechanism of an offset printing machine provided by an embodiment of the utility model;

[0026] Figure 2 It is a side schematic diagram of a paper delivery assembly structure of a paper delivery mechanism of an offset printing press provided by an embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of a partially separated structure of a paper delivery component of a paper delivery mechanism of an offset printing press provided by an embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of an outer frame of a paper delivery mechanism of an offset printing machine provided by an embodiment of the utility model;

[0029] Figure 5 The utility model is provided in an embodiment of the present invention.

[0030] In the figure: 1. conveying member; 2. control box; 3. conveyor belt; 4. paper delivery assembly; 401. outer frame; 402. square plate; 403. electric push rod; 404. motor 1; 405. clamping block; 406. paper delivery roller; 407. clamping slot; 408. bearing; 409. telescopic rod; 410. bottom ring; 411. top ring; 412. cover; 5. swing assembly; 501. motor 2; 502. swing plate; 503. slide rail; 504. outer ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4 A paper delivery mechanism of an offset printing machine includes a conveying member 1, a control box 2 fixedly connected to the outer wall of the conveying member 1, and a conveyor belt 3 arranged inside the conveying member 1. The outer wall of the conveying member 1 is provided with a paper delivery assembly 4, and the paper delivery assembly 4 is composed of a moving unit and a supporting unit. The moving unit is located on the outer wall of the conveying member 1, and the supporting unit is located on the outer wall of the conveying member 1.

[0033] Furthermore, the moving unit includes an outer frame 401, a square plate 402, an electric push rod 403, a motor 404, a card block 405, a paper delivery roller 406 and a card slot 407. The outer frame 401 is fixedly connected to the outer wall of the conveying member 1, the square plate 402 is slidably connected to the outer wall of the conveying member 1, the square plate 402 can slide on the outer wall of the conveying member 1, the outer wall of the square plate 402 is slidably connected to the inner wall of the outer frame 401, the square plate 402 can slide inside the outer frame 401, the electric push rod 403 is fixedly connected to the inner wall of the outer frame 401, and the output end of the electric push rod 403 is connected to the square plate 40 2, controls the electric push rod 403 to operate, so that the electric push rod 403 drives the square plate 402 to move, the motor 1 404 is installed on the outer wall of the square plate 402, the clamping block 405 is fixedly connected to the output end of the motor 1 404, and the motor 1 404 can drive the clamping block 405 to rotate when it is running, the paper delivery roller 406 is arranged above the conveyor belt 3, and the clamping slot 407 is opened on the outer wall of the paper delivery roller 406, and the clamping block 405 is clamped with the clamping slot 407. When the motor 1 404 drives the clamping block 405 to rotate, it will drive the paper delivery roller 406 to rotate through the clamping slot 407.

[0034] The supporting unit includes a bearing 408, a telescopic rod 409, a bottom ring 410, a top ring 411 and a cover 412. The bearing 408 is installed on the outer wall of the paper delivery roller 406. The telescopic rod 409 is arranged below the bearing 408. The bottom ring 410 is clamped to the bottom of the outer wall of the bearing 408. The bearing 408 is clamped into the inside of the bottom ring 410 to limit the position of the paper delivery roller 406. The top end of the telescopic rod 409 is fixedly connected to the bottom of the bottom ring 410. The telescopic rod 409 can be used to clamp the paper delivery roller 406 through the bottom ring 410. The top ring 411 is rotatably connected to the outer wall of the bottom ring 410, and the top ring 411 can rotate on the top of the bottom ring 410. The top ring 411 cooperates with the bottom ring 410 to drive the telescopic rod 409 to telescope when the paper delivery roller 406 changes its position. The cover 412 is installed on the outer wall of the bottom ring 410. The outer walls of the bottom ring 410 and the top ring 411 are both slidably connected to the inner wall of the cover 412. The cover 412 can be moved by sliding to close the bottom ring 410 and the top ring 411.

[0035] By setting up the electric push rod 403 and the telescopic rod 409, the operation of the electric push rod 403 can be controlled so that the electric push rod 403 drives the motor 404 to move through the square plate 402, so that the block 405 is separated from the slot 407. At this time, the damaged paper delivery roller 406 can be replaced. At the same time, when the motor 404 cannot support the paper delivery roller 406 through the block 405, the outer wall of the bottom ring 410 abuts against the outer wall of the paper delivery roller 406. Therefore, the telescopic rod 409 supports the paper delivery roller 406 through the bottom ring 410, thereby preventing the paper delivery roller 406 from colliding with the conveyor belt 3 and causing damage to the conveyor belt 3.

[0036] Reference Figure 1 , Figure 2 and Figure 5 , further; the outer wall of the paper delivery component 4 is provided with a swing component 5, the swing component 5 includes a motor 2 501, a swing plate 502, a slide rail 503 and an outer ring 504, the motor 2 501 is fixedly connected to the outer wall of the square plate 402, the swing plate 502 is rotatably connected to the outer wall of the square plate 402, and the swing plate 502 can rotate on the outer wall of the square plate 402, the output end of the motor 2 501 passes through the square plate 402 and is fixedly connected to the outer wall of the swing plate 502, the motor 1 404 passes through the swing plate 502 and is fixedly connected to the swing plate 502, when the motor 2 501 is running, it can drive the swing plate 502 to rotate, when the swing plate 502 rotates, it can drive the motor 1 404 to rotate, the slide rail 503 is opened inside the square plate 402, the outer ring 504 is slidably connected to the inside of the slide rail 503, the outer ring 504 can rotate inside the slide rail 503, and the output shaft of the motor 1 404 passes through the outer ring 504 and is rotatably connected to the inner wall of the outer ring 504.

[0037] By setting up the swing plate 502 and controlling the operation of the motor 2 501, the motor 2 501 drives the swing plate 502 to rotate. When the swing plate 502 rotates, it drives the motor 1 404 to adjust the angle. Since the swing plate 502 drives the motor 1 404 to rotate around the motor 2 501, the paper delivery roller 406 will move in a circle through the block 405 and the slot 407 as the position of the motor 1 404 changes. At this time, the distance between the paper delivery roller 406 and the conveyor belt 3 will change, so that the paper delivery roller 406 can transport papers of different thicknesses.

[0038] The working principle of the paper feeding mechanism of the offset printing machine is as follows: by controlling the operation of the motor 1 404, the motor 1 404 drives the paper feeding roller 406 to rotate through the card block 405 and the card slot 407, so that the paper feeding roller 406 cooperates with the conveyor belt 3 to convey the paper. When it is necessary to adjust the distance between the paper feeding roller 406 and the conveyor belt 3, by controlling the operation of the motor 2 501, the motor 2 501 drives the swing plate 502 to rotate, so that the swing plate 502 drives the motor 1 404 to move on the outer wall of the square plate 402. At this time, the paper feeding roller 406 is moved along the outer wall of the square plate 402. 06 will change its position under the action of the card slot 407, the card block 405 and the motor 404 until the paper delivery roller 406 is adjusted to the specified height; when the paper delivery roller 406 needs to be replaced, by controlling the operation of the electric push rod 403, the square plate 402 drives the motor 404 to move, so that the card block 405 is separated from the card slot 407. At this time, the telescopic rod 409 and the bottom ring 410 will support the paper delivery roller 406, and then the cover 412 is moved by sliding and the top ring 411 is rotated, so that the paper delivery roller 406 can be replaced.

[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A paper delivery mechanism of an offset printing press, comprising a conveying member (1), a control box (2) fixedly connected to the outer wall of the conveying member (1), and a conveying belt (3) arranged inside the conveying member (1), characterized in that: The outer wall of the conveying member (1) is provided with a paper delivery component (4), and the outer wall of the paper delivery component (4) is provided with a swing component (5); The paper delivery assembly (4) is composed of a moving unit and a supporting unit, the moving unit is located on the outer wall of the conveying member (1), and the supporting unit is located on the outer wall of the conveying member (1); The moving unit comprises an outer frame (401), a square plate (402), an electric push rod (403), a motor 1 (404), a clamping block (405), a paper delivery roller (406) and a clamping slot (407); the outer frame (401) is fixedly connected to the outer wall of the conveying member (1); the square plate (402) is slidably connected to the outer wall of the conveying member (1); the electric push rod (403) is fixedly connected to the inner wall of the outer frame (401); the motor 1 (404) is installed on the outer wall of the square plate (402); the clamping block (405) is fixedly connected to the output end of the motor 1 (404); the paper delivery roller (406) is arranged above the conveying belt (3); and the clamping slot (407) is opened on the outer wall of the paper delivery roller (406).

2. The paper delivery mechanism of an offset printing press according to claim 1, characterized in that: The outer wall of the square plate (402) is slidably connected to the inner wall of the outer frame (401), the output end of the electric push rod (403) is fixedly connected to the outer wall of the square plate (402), and the clamping block (405) is clamped to the clamping slot (407).

3. The paper delivery mechanism of an offset printing press according to claim 1, characterized in that: The support unit comprises a bearing (408), a telescopic rod (409), a bottom ring (410), a top ring (411) and a cover (412); the bearing (408) is mounted on the outer wall of the paper delivery roller (406); the telescopic rod (409) is arranged below the bearing (408); the bottom ring (410) is clamped on the bottom of the outer wall of the bearing (408); the top ring (411) is rotatably connected to the outer wall of the bottom ring (410); and the cover (412) is mounted on the outer wall of the bottom ring (410).

4. The paper delivery mechanism of an offset printing press according to claim 3, characterized in that: The top end of the telescopic rod (409) is fixedly connected to the bottom of the bottom ring (410), and the outer wall of the bottom ring (410) and the outer wall of the top ring (411) are both slidably connected to the inner wall of the sealing cover (412).

5. The paper delivery mechanism of an offset printing press according to claim 1, characterized in that: The swing assembly (5) comprises a second motor (501), a swing plate (502), a slide rail (503) and an outer ring (504); the second motor (501) is fixedly connected to the outer wall of the square plate (402); the swing plate (502) is rotatably connected to the outer wall of the square plate (402); the slide rail (503) is opened inside the square plate (402); and the outer ring (504) is slidably connected to the inside of the slide rail (503).

6. The paper delivery mechanism of an offset printing press according to claim 5, characterized in that: The output end of the second motor (501) passes through the square plate (402) and is fixedly connected to the outer wall of the swing plate (502).

7. The paper delivery mechanism of an offset printing press according to claim 5, characterized in that: The motor 1 (404) passes through the swing plate (502) and is fixedly connected to the swing plate (502); the output shaft of the motor 1 (404) passes through the outer ring (504) and is rotatably connected to the inner wall of the outer ring (504).

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