Paper conveying mechanism of rotary press

Abstract

The utility model relates to the technical field of rotary presses, and discloses a paper conveying mechanism of a rotary press, which comprises an upper-layer conveying line and a lower-layer conveying line, the upper-layer conveying line and the lower-layer conveying line are both drum-type conveying lines, and a transfer mechanism is arranged between the upper-layer conveying line and the lower-layer conveying line. The transfer mechanism comprises a support, the top end of the support is fixedly connected with the left end of the upper-layer conveying line, a to-be-folded product is conveyed in a steering mode through a steering roller arranged between the upper-layer conveying line and the lower-layer conveying line, and when the steering roller conveys the to-be-folded product, a tensioning roller presses the to-be-folded product and is matched with the steering roller to press the to-be-folded product. And the sliding block is supported through the spring, so that when the thickness of the to-be-folded product changes, the tensioning roller can still press the to-be-folded product all the time, and the situation that the tensioning roller cannot press the to-be-folded product or excessively presses the to-be-folded product when the thickness of the to-be-folded product changes due to the fact that the position of the tensioning roller is fixed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary printing presses, in particular to a paper feeding mechanism of a rotary printing press. Background Art

[0002] During the paper feeding process of the folding machine of a rotary printing press, the paper is prone to loosening, spilling, and being damaged, resulting in low paper folding efficiency, affecting the working efficiency of the folding machine, and increasing the operating burden of the operator. In particular, the tension of the wire belt in the paper feeding device cannot be adjusted, resulting in the paper clip thickness changing, which may lead to problems such as failure to deliver the paper in time or serious indentation of the wire belt. Utility Model Content

[0003] The purpose of the present utility model is to provide a paper feeding mechanism for a rotary printing press to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a paper feeding mechanism of a rotary printing press, comprising an upper conveying line and a lower conveying line, wherein the upper conveying line and the lower conveying line are both roller conveying lines, and a transfer mechanism is provided between the upper conveying line and the lower conveying line;

[0005] The transfer mechanism includes a bracket, the top of the bracket is fixedly connected to the left end of the upper conveyor line, the bottom end of the bracket is fixedly connected to the right end of the lower conveyor line, a steering roller is provided on the inner side of the bracket, three steering rollers are provided and are evenly spaced on the bracket, the steering roller is transmission-connected to the output end of the driving device, a slide rail is fixedly installed on the outer wall of the bracket, a slide rod is fixedly installed on the inner wall of the slide rail, a slide sleeve is provided on the outer wall of the slide rod, and the slide is slidably arranged in the slide rail, a spring is fixedly installed on the outer wall of the slider, and the end of the spring away from the slider is fixedly connected to the inner wall of the slide rail, the outer wall of the slider is rotatably connected to a tensioning roller through a pin shaft, and the tensioning roller is located above the steering roller.

[0006] Furthermore, two brackets are provided and are symmetrically distributed front and back about the center plane of the upper conveyor line. The uppermost steering roller is flush with the roller on the upper conveyor line, and the lowermost steering roller is flush with the roller on the upper conveyor line.

[0007] Furthermore, the slide rails are provided with two groups, and two springs are provided on the same slider, and are respectively located at the top and bottom of the slider.

[0008] Furthermore, a sliding groove is provided on the outer wall of the bracket, and a sliding seat is slidingly provided on the inner wall of the sliding groove. A motor is fixedly installed on the outer wall of the bracket, and a screw rod is fixedly installed on the output end of the motor. A connecting plate is provided on the threaded sleeve of the outer wall of the screw rod, and the connecting plate is fixedly connected to the sliding seat. The outer wall of the sliding seat is rotatably connected to a push roller through a pin shaft, and the push roller is located above the steering roller.

[0009] Furthermore, an auxiliary roller is rotatably connected to the inner side of the bracket via a pin shaft. Two auxiliary rollers are provided and are respectively located between the two steering rollers.

[0010] Furthermore, the inner side of the bracket is rotatably connected to a guide roller via a pin shaft. The guide roller is located above the steering roller, and the guide roller is close to the topmost steering roller.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The products to be folded are steered and conveyed by the steering rollers arranged between the upper and lower conveyor lines. When the steering rollers convey the products to be folded, the tensioning rollers press on the products to be folded and cooperate with the steering rollers to compact the products to prevent them from falling. The sliders are supported by springs so that the tensioning rollers can always press on the products when the thickness of the products to be folded changes, avoiding the situation where the tensioning rollers cannot compact the products or over-compact the products when the thickness of the products to be folded changes due to the fixed position of the tensioning rollers.

[0013] 2. The motor drives the screw to rotate, so that the connecting plate moves along the screw, and then drives the sliding seat to move. The movement of the sliding seat drives the push roller to move. When the product to be folded is too thick and the steering roller cannot transport the product normally, the push roller moves to push the product to be folded. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the structure from the top;

[0016] Figure 3 This is a schematic structural diagram of the transfer mechanism of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the structure from the bottom upward view.

[0018] In the figure: 1. Upper conveyor line; 2. Lower conveyor line; 3. Transfer mechanism; 301. Bracket; 302. Steering roller; 303. Spring; 304. Slide rod; 305. Slider; 306. Tensioning roller; 307. Slide rail; 4. Auxiliary roller; 5. Guide roller; 6. Push roller; 7. Slide trough; 8. Sliding seat; 9. Screw; 10. Motor; 11. Connecting plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1-4 The utility model provides a technical solution: a paper feeding mechanism of a rotary printing press, comprising an upper conveying line 1 and a lower conveying line 2, both of which are roller conveying lines, and a transfer mechanism 3 is provided between the upper conveying line 1 and the lower conveying line 2;

[0021] The transfer mechanism 3 includes a bracket 301, the top of the bracket 301 is fixedly connected to the left end of the upper conveyor line 1, the bottom end of the bracket 301 is fixedly connected to the right end of the lower conveyor line 2, and a steering roller 302 is provided on the inner side of the bracket 301. There are three steering rollers 302, which are evenly spaced on the bracket 301. The steering roller 302 is transmission-connected to the output end of the driving device. A slide rail 307 is fixedly installed on the outer wall of the bracket 301, and a slide rod 304 is fixedly installed on the inner wall of the slide rail 307. A slider 305 is slidingly sleeved on the outer wall of the slide rod 304. The slider 305 is slidably set in the slide rail 307. A spring 303 is fixedly installed on the outer wall of the slider 305. The end of the spring 303 away from the slider 305 is in contact with the slide rail 307. The inner wall is fixedly connected, and the outer wall of the slider 305 is rotatably connected to the tensioning roller 306 through a pin shaft. The tensioning roller 306 is located above the steering roller 302, and the products to be folded are steered and conveyed through the steering roller 302 arranged between the upper conveyor line 1 and the lower conveyor line 2. When the steering roller 302 conveys the products to be folded, the tensioning roller 306 presses on the products to be folded and cooperates with the steering roller 302 to press the products to be folded to prevent them from scattering. The slider 305 is supported by the spring 303 so that when the thickness of the products to be folded changes, the tensioning roller 306 can also be kept pressed on the products to be folded, so as to avoid the tensioning roller 306 being unable to press the products to be folded or over-pressing the products to be folded when the thickness of the products to be folded changes due to the fixed position of the tensioning roller 306;

[0022] Two brackets 301 are provided and are symmetrically distributed front and back about the center plane of the upper conveyor line 1. The uppermost steering roller 302 is flush with the roller on the upper conveyor line 1, and the lowermost steering roller 302 is flush with the roller on the upper conveyor line 1, so that the products to be folded can be smoothly conveyed from the upper conveyor line 1 to the steering roller 302, and from the steering roller 302 to the lower conveyor line 2;

[0023] There are two sets of slide rails 307. Two springs 303 are provided on the same slider 305, and are respectively located at the top and bottom of the slider 305. The two slide rails 307 are used to set two sets of tensioning rollers 306. When the products to be folded enter the transfer mechanism 3 from the upper conveyor line 1, and when they enter the lower conveyor line 2 from the transfer mechanism 3, the tensioning rollers 306 will press the products to be folded to prevent them from scattering.

[0024] The outer wall of the bracket 301 is provided with a slide groove 7, and the inner wall of the slide groove 7 is slidably provided with a sliding seat 8. The outer wall of the bracket 301 is fixedly installed with a motor 10, and the output end of the motor 10 is fixedly installed with a screw rod 9. The outer wall of the screw rod 9 is threadedly sleeved with a connecting plate 11, and the connecting plate 11 is fixedly connected to the sliding seat 8. The outer wall of the sliding seat 8 is rotatably connected to the push roller 6 through a pin shaft. The push roller 6 is located above the steering roller 302. The motor 10 drives the screw rod 9 to rotate, so that the connecting plate 11 moves along the screw rod 9, and then drives the sliding seat 8 to move. The movement of the sliding seat 8 drives the push roller 6 to move. When the product to be folded is too thick and the steering roller 302 cannot normally convey the product to be folded, the push roller 6 moves to push the product to be folded;

[0025] The inner side of the bracket 301 is rotatably connected to an auxiliary roller 4 via a pin. Two auxiliary rollers 4 are provided and are respectively located between the two steering rollers 302 to prevent the gap between adjacent steering rollers 302 from being too large, causing the folded products to fall from the middle.

[0026] The inner side of the bracket 301 is rotatably connected to a guide roller 5 via a pin shaft. The guide roller 5 is located above the steering roller 302, and the guide roller 5 is close to the topmost steering roller 302. When the product to be folded enters the transfer mechanism 3 from the upper conveyor line 1, it will contact the guide roller 5 and be guided by the guide roller 5 to be flush with the steering roller 302, ensuring that the product to be folded can smoothly enter the transfer mechanism 3.

[0027] Working principle: When in use, the products to be folded are transported to the top of the transfer mechanism 3 by the upper conveyor line 1. The products to be folded first contact the guide roller 5, and are guided by the guide roller 5 to tilt and be flush with the steering roller 302, so that the products to be folded can enter the transfer mechanism 3 normally, and then are transported by the steering roller 302. When the products to be folded pass through the tensioning roller 306, they are pressed by the tensioning roller 306 to prevent the products to be folded from being scattered and damaged, until the products to be folded are transported to the lower conveyor line 2 by the steering roller 302.

[0028] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A paper feeding mechanism of a rotary printing press, comprising an upper conveying line (1) and a lower conveying line (2), characterized in that: The upper conveying line (1) and the lower conveying line (2) are both roller-type conveying lines, and a transfer mechanism (3) is provided between the upper conveying line (1) and the lower conveying line (2); The transfer mechanism (3) includes a bracket (301), the top end of the bracket (301) is fixedly connected to the left end of the upper conveyor line (1), the bottom end of the bracket (301) is fixedly connected to the right end of the lower conveyor line (2), the inner side of the bracket (301) is provided with a steering roller (302), three steering rollers (302) are provided and are evenly spaced on the bracket (301), the steering rollers (302) are connected to the output end of the driving device, and the outer wall of the bracket (301) is fixedly installed with a slide rail (307), the slide rail A slide bar (304) is fixedly mounted on the inner wall of the rail (307); a slider (305) is slidingly sleeved on the outer wall of the slide bar (304); the slider (305) is slidingly arranged in the slide rail (307); a spring (303) is fixedly mounted on the outer wall of the slider (305); one end of the spring (303) away from the slider (305) is fixedly connected to the inner wall of the slide rail (307); the outer wall of the slider (305) is rotatably connected to a tensioning roller (306) via a pin shaft; the tensioning roller (306) is located above the steering roller (302).

2. The paper feeding mechanism of a rotary printing press according to claim 1, characterized in that: Two supports (301) are provided and are symmetrically distributed front and back with respect to the center face of the upper conveyor line (1). The uppermost steering roller (302) is flush with the roller on the upper conveyor line (1), and the lowermost steering roller (302) is flush with the roller on the upper conveyor line (1).

3. The paper feeding mechanism of a rotary printing press according to claim 1, characterized in that: The slide rails (307) are provided with two groups, and two springs (303) are provided on the same slider (305), and are respectively located at the top and bottom of the slider (305).

4. The paper feeding mechanism of a rotary printing press according to claim 1, characterized in that: The outer wall of the bracket (301) is provided with a slide groove (7), the inner wall of the slide groove (7) is slidably provided with a slide seat (8), the outer wall of the bracket (301) is fixedly installed with a motor (10), the output end of the motor (10) is fixedly installed with a screw rod (9), the outer wall of the screw rod (9) is threadedly sleeved with a connecting plate (11), the connecting plate (11) is fixedly connected to the slide seat (8), the outer wall of the slide seat (8) is rotatably connected with a push roller (6) through a pin shaft, and the push roller (6) is located above the steering roller (302).

5. The paper feeding mechanism of a rotary printing press according to claim 1, characterized in that: The inner side of the bracket (301) is rotatably connected to an auxiliary roller (4) via a pin shaft. Two auxiliary rollers (4) are provided and are respectively located between the two steering rollers (302).

6. The paper feeding mechanism of a rotary printing press according to claim 1, characterized in that: The inner side of the bracket (301) is rotatably connected to a guide roller (5) via a pin shaft. The guide roller (5) is located above the steering roller (302), and the guide roller (5) is close to the topmost steering roller (302).

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