Anti-blocking device for flat conveying of coated paper produced by flexo printing machine

Abstract

The utility model discloses an anti-blocking device for flat conveying of coated paper produced by a flexo printing machine. The anti-blocking device comprises a coated paper output high-speed conveying belt assembly, a coated paper low-speed conveying table assembly and a transition plate assembly. The transition plate assembly comprises a long-strip transition plate, a rotating shaft penetrating through the long-strip transition plate and capable of rotating, an up-down adjusting device installed at the front end of the long-strip transition plate, an air suction hole, an air suction box and an air suction pipe, wherein the air suction hole, the air suction box and the air suction pipe are arranged on the long-strip transition plate. The coated paper low-speed conveying table assembly comprises a paper receiving wheel, an air blowing nozzle and an air blowing pipe. The anti-blocking device can well solve the blocking problem when high-speed conveying is converted into low-speed conveying when the coated paper is flatly conveyed, greatly improves the sliding performance of the coated paper, reduces the rejection rate caused by blocking, improves the product quality, meanwhile can achieve the effect that the high-speed conveying speed of the flexo printing machine is increased to 160 m / min from 80 m / min, and reduces the production cost. And the production efficiency and the productivity are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laminated paper production and conveying equipment, in particular to an anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine. Background Art

[0002] Laminated paper is a composite material in which plastic particles are coated on the surface of paper through a casting machine. It is widely used in the field of packaging materials, etc. At present, when producing laminated paper, a flexographic printing machine is used for production. After the laminated paper is produced, the flexographic printing machine will output the laminated paper to the low-speed belt through a high-speed belt. A transition plate will be set between the high-speed belt and the low-speed belt to reduce the speed of the laminated paper and smoothly output the paper to the low-speed belt. Finally, each piece of laminated paper is adsorbed and stacked in the packaging area on the low-speed belt through a vacuum suction cup, etc., to complete the production of laminated paper. However, when the flexographic printing machine produces laminated paper, when the high-speed belt of the flexographic printing machine runs at a speed greater than 80m / min, the laminated paper is prone to get stuck on the transition plate. In severe cases, it will cause frequent shutdowns, which will have a great impact on production efficiency and quality; if the high-speed belt runs at a speed less than 80m / min, the production efficiency will be greatly reduced, which will cause a serious reduction in production capacity.

[0003] The reasons for the blockage of the high-speed belt of the flexographic printing machine when the running speed is greater than 80m / min are as follows: (1) The high-speed belt and the low-speed belt for paper delivery are sliding conveyors, while the transition plate is relatively static and the transition plate is fixedly installed on the equipment. The height and angle of the transition plate cannot be adjusted. This will result in the inability to fine-tune the transition plate and the top surface of the low-speed belt to form a smooth connection according to the actual situation, which is very likely to cause blockage when the laminated paper is conveyed. (2) When the laminated paper slides over the transition plate, static electricity is easily generated between the bottom surface of the laminated paper and the surface of the transition plate due to friction. When more static electricity is generated, the sliding speed of the laminated paper will decrease, resulting in poor sliding between the laminated paper and the transition plate. In severe cases, the sliding of the laminated paper will stop. In this way, when the sliding speed of the laminated paper is seriously reduced and the sliding stop is set, it is easy to cause blockage of the laminated paper. (3) For the static electricity problem in case (2), the conventional method in this technical field is to install an anti-static rod to eliminate static electricity, but the anti-static rod can only eliminate small static electricity, and the static electricity gradually increases during the sliding process of the laminated paper, and it cannot be completely eliminated, and it has only a slight effect on the blockage problem. (4) Simply slowing down the laminated paper through the transition plate and inputting it onto the low-speed belt will easily cause the laminated paper to become skewed or warped after it is slowed down by the transition plate and before entering the low-speed belt, making it impossible for the laminated paper to enter the low-speed belt smoothly or at the specified speed. This will cause the laminated paper behind to partially overlap or collide with the laminated paper in front, resulting in blockage.

[0004] Therefore, there are still many problems with the conveying equipment in the production of laminated paper using traditional technology, which requires further improvement or modification. Summary of the invention

[0005] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide an anti-blocking device for the smooth conveyance of laminated paper produced by a flexographic printing machine. The anti-blocking device for the smooth conveyance of laminated paper produced by a flexographic printing machine designs a transition plate between a high-speed belt and a low-speed belt into a structure in which the rear end (right side) can be rotated to adjust the angle and the front end (left side) can be raised and lowered to adjust the height. At the same time, an air suction hole is designed at the front end to absorb the tail of the laminated paper passing through. Finally, a blowing hole is designed to blow air to the top paper surface of the laminated paper to form an air cushion before the laminated paper enters the low-speed belt, and a design A receiving wheel with the function of pressing the laminated paper into the paper surface and reducing the speed; in this way, when the laminated paper enters the transition plate, the tail of the laminated paper lies down under the suction effect to protect the tail of the paper from being skewed, and at the same time, the head of the paper will generate an upward force to form a slight tilt to reduce the friction with the transition plate, thereby improving the sliding property of the laminated paper. When the laminated paper enters the low-speed belt, the blowing air forms an air cushion on the surface of the laminated paper and smoothly enters the bottom of the receiving wheel to press and reduce the speed of the laminated paper, thereby ensuring that the laminated paper can maintain good sliding property and no skew after falling into the low-speed belt. Through the above-mentioned improvements, the anti-blocking device can well solve the blockage problem of converting from high-speed conveying to low-speed conveying when the laminated paper is conveyed flat, and greatly improves the sliding property of the laminated paper, reduces the scrap rate caused by blockage, and improves product quality. At the same time, it can realize the high-speed conveying speed of the flexographic printing machine from 80m / min to 160m / min, thereby greatly improving production efficiency and capacity.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an anti-blocking device for the smooth transportation of laminated paper produced by a flexographic printing machine, comprising a laminated paper output high-speed conveying belt assembly, a laminated paper low-speed conveying platform assembly, and a transition plate assembly located between the laminated paper output high-speed conveying belt assembly and the laminated paper low-speed conveying platform assembly and used for connecting the transition of laminated paper transportation.

[0007] The transition plate assembly includes a long transition plate arranged in the Y-axis direction when the laminated paper conveying direction is the X-axis direction, a rotating shaft passing through the right side of the long transition plate and allowing the tail end of the long transition plate to rotate, an up and down adjustment device installed on the front end of the long transition plate and capable of adjusting the up and down movement of the long transition plate, an air suction hole provided on the top surface of the tail end of the long transition plate, an air suction box installed at the bottom of the long transition plate, and an air suction pipe connecting the air suction hole and the air suction box.

[0008] The laminated paper low-speed conveying platform assembly includes a paper receiving wheel located at the upper end of the laminated paper receiving position and used to press the paper and reduce the conveying speed of the laminated paper, a blowing nozzle located at the front end of the laminated paper and corresponding to the top paper surface of the laminated paper, and a blowing pipe connected to the blowing nozzle.

[0009] Furthermore, the up and down adjustment device includes a lower fixed plate fixedly installed in the long transition plate, a lifting rod extending upward through the lower fixed plate and fixedly installed, an upper fixed plate that is fitted with the lifting rod to form a sliding connection and fixedly installed on the flexographic printing machine, and an adjustment sleeve that is fitted with the lifting rod to form a sliding connection and is located above the upper fixed plate.

[0010] Furthermore, the coated paper low-speed conveying platform assembly also includes two low-speed conveying wheels and a low-speed conveying belt located between the two low-speed conveying wheels.

[0011] Furthermore, the high-speed conveyor belt assembly for outputting coated paper includes a flattening wheel component composed of upper and lower flattening wheels for flattening the coated paper, a first high-speed conveying wheel arranged at the paper output end corresponding to the flattening wheel component, a second high-speed conveying wheel arranged horizontally with the first high-speed conveying wheel, and a high-speed conveying belt installed between the first high-speed conveying wheel and the second high-speed conveying wheel.

[0012] Furthermore, the paper receiving wheel is fixedly mounted on the flexographic printing machine via a paper receiving wheel frame.

[0013] Furthermore, the blowing pipe is in an inverted Z shape, and the air inlet end of the blowing pipe is connected to a blowing box.

[0014] Furthermore, the blowing angle of the blowing nozzle facing the top paper surface of the laminated paper is set to 30-60 degrees.

[0015] Furthermore, the conveying speed of the laminated paper high-speed conveying belt assembly is 160m / min.

[0016] In summary, the utility model. The anti-blocking device for the smooth conveying of laminated paper produced by the flexographic printing machine designs the transition plate between the high-speed belt and the low-speed belt into a structure with a rear end (right side) that can rotate to adjust the angle and a front end (left side) that can be raised and lowered to adjust the height. At the same time, an air suction hole is designed at the front end to adsorb the tail of the laminated paper passing through. Finally, before the laminated paper enters the low-speed belt, a blower is designed to blow to the top paper surface of the laminated paper to form an air-blowing air cushion, and a paper receiving wheel with the function of pressing the laminated paper into the paper surface and reducing the speed is designed; in this way, when the laminated paper enters the transition plate, the tail of the laminated paper lies down under the action of the air suction to protect the tail from being skewed, and at the same time, the paper head will generate an upward force to form a slight tilt to reduce the friction with the transition plate, thereby improving the sliding property of the laminated paper. When the laminated paper enters the low-speed belt, the blower forms an air-blowing air cushion on the paper surface of the laminated paper and smoothly enters under the paper receiving wheel to form the pressing and deceleration of the laminated paper, thereby ensuring that the laminated paper can maintain good sliding property and no skew after falling into the low-speed belt. Through the above-mentioned improvements, the anti-blocking device can effectively solve the blockage problem when the laminated paper is transported flat from high-speed to low-speed, and greatly improves the sliding property of the laminated paper, reduces the scrap rate caused by blockage, and improves product quality. At the same time, it can realize the high-speed conveying speed of the flexographic printing machine from 80m / min to 160m / min, greatly improving production efficiency and capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an anti-blocking device for smooth transportation of laminated paper produced by a flexographic printing machine according to Embodiment 1 of the present utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the long transition plate;

[0019] The markings in the attached drawings are as follows: 1. High-speed conveyor belt assembly for laminated paper output; 2. Low-speed conveyor platform assembly for laminated paper; 3. Transition plate assembly; 4. Long transition plate; 5. Rotating shaft; 6. Up and down adjustment device; 7. Air suction hole; 8. Air suction box; 9. Air suction pipe; 10. Paper receiving wheel; 11. Blowing nozzle; 12. Blowing pipe; 13. Lower fixed plate; 14. Lifting rod; 15. Upper fixed plate; 16. Adjusting sleeve; 17. Low-speed conveyor wheel; 18. Low-speed conveyor belt; 19. Flattening wheel; 20. First high-speed conveyor wheel; 21. Second high-speed conveyor wheel; 22. High-speed conveyor belt; 23. Paper receiving wheel frame; 24. Blowing box. DETAILED DESCRIPTION

[0020] Example 1

[0021] The anti-blocking device for smooth conveying of coated paper produced by a flexographic printing machine described in Example 1 is as follows: Figure 1As shown, it includes a laminated paper high-speed conveying belt assembly 1, a laminated paper low-speed conveying platform assembly 2, and a transition plate assembly 3 located between the laminated paper high-speed conveying belt assembly and the laminated paper low-speed conveying platform assembly and used to connect the transition laminated paper conveying. The anti-blocking device is basically composed of three major components: a laminated paper high-speed conveying belt assembly, a laminated paper low-speed conveying platform assembly, and a transition plate assembly, and has a simple structure; the laminated paper high-speed conveying belt assembly is used to convey the laminated paper at high speed, the laminated paper low-speed conveying platform assembly is used to convey the laminated paper at low speed, and the transition plate assembly slows down the laminated paper output at high speed and transitions it to the laminated paper low-speed conveying platform assembly, achieving the purpose of switching from high-speed conveying to low-speed conveying, which is a key process for the subsequent laminated paper packaging to achieve orderly packaging.

[0022] like Figure 1 and Figure 2 As shown, the transition plate assembly includes a long transition plate 4 arranged in the Y-axis direction when the conveying direction of the coated paper is the X-axis direction, a rotating shaft 5 that passes through the right side of the long transition plate and allows the tail end of the long transition plate to rotate, an up-down adjustment device 6 installed on the front end of the long transition plate and capable of adjusting the up-down movement of the long transition plate, an air suction hole 7 provided on the top surface of the tail end of the long transition plate, an air suction box 8 installed at the bottom of the long transition plate, and an air suction pipe 9 connecting the air suction hole and the air suction box. The long direction of the long transition plate is designed in the Y-axis direction with the conveying direction of the coated paper as the X-axis direction; and a rotating shaft is perforated and welded on the right side of the long transition plate, and the rotating shaft can rotate and adjust the tail end of the long transition plate so as to adjust the angle of the tail end of the long transition plate, so as to realize the mutual alignment and flat adjustment of the tail end of the long transition plate and the plane of the low-speed conveying platform assembly of the coated paper, so as to achieve smoother and unobstructed entry of the coated paper into the low-speed conveying, similar to seamless connection. The up and down adjustment device is used to adjust the height of the front end of the long transition plate, so that the front end of the long transition plate and the plane of the high-speed conveyor belt assembly of the coated paper are aligned and adjusted to each other, so that the coated paper can enter the long transition plate smoothly and unhindered from the high-speed output, just like sliding into the long transition plate. When the coated paper enters the long transition plate, the suction box provides suction through the suction pipe and the suction hole to suck the tail of the passing coated paper downward, so that the tail of the coated paper lies down and is positioned to protect the tail from being skewed. At the same time, an upward force is generated on the head of the paper, causing the head of the paper to slightly tilt, reducing the friction of the coated paper sliding on the long transition plate, improving the sliding property of the coated paper, achieving smoother sliding of the coated paper, and reducing the occurrence of blockage.

[0023] The laminated paper low-speed conveying platform assembly comprises a paper receiving wheel 10 located at the upper end of the laminated paper receiving position and used for pressing the paper and reducing the conveying speed of the laminated paper, a blowing nozzle 11 located at the front end of the laminated paper and arranged corresponding to the top paper surface of the laminated paper, and a blowing pipe 12 connected and installed with the blowing nozzle. When the laminated paper passes through the long transition plate and enters the laminated paper low-speed conveying platform assembly, the blowing pipe blows air to the blowing nozzle and adds a downward blowing force to the paper surface of the laminated paper, so that the paper surface of the laminated paper forms a blowing air cushion, so that the paper head of the laminated paper can be accurately positioned to enter the lower side of the paper receiving wheel and smoothly enter the laminated paper low-speed conveying platform assembly, preventing the paper head of the laminated paper from being excessively lifted up and causing the paper to enter the low-speed conveying unsmoothly and skewed; when entering the low-speed conveying, the paper receiving wheel has a pressing effect and a deceleration effect on the paper surface of the laminated paper, so that the laminated paper can be decelerated more effectively and enter the low-speed conveying without skew.

[0024] In this embodiment 1, the up-down adjustment device comprises a lower fixed plate 13 fixedly installed in the long transition plate, a lifting rod 14 extending upward through the lower fixed plate and fixedly installed, an upper fixed plate 15 which is fitted with the lifting rod to form a sliding connection and fixedly installed on the flexographic printing machine, and an adjustment sleeve 16 which is fitted with the lifting rod to form a sliding connection and is located above the upper fixed plate. The up-down adjustment device adopts a screw-type up-down adjustment structure, and the lifting rod is driven to slide up and down by a lifting cylinder or manually, thereby driving the lower fixed plate to move up and down, so as to realize the function of the long transition plate to move up and down with the right central axis; and the upper fixed plate and the adjustment sleeve act as the sliding sleeve of the lifting rod, so as to realize the effect of positioning and sliding of the lifting rod and improving the sliding stability.

[0025] In this embodiment 1, the laminated paper low-speed conveyor assembly further includes two low-speed conveyor wheels 17 and a low-speed conveyor belt 18 located between the two low-speed conveyor wheels. The laminated paper low-speed conveyor assembly drives the low-speed conveyor belt to rotate through the two low-speed conveyor wheels, thereby achieving the purpose of low-speed conveyance of the laminated paper.

[0026] In this embodiment 1, the laminated paper discharge high-speed conveyor belt assembly includes a flattening wheel 19 composed of upper and lower flattening wheels for flattening the laminated paper, a first high-speed conveying wheel 20 arranged at the paper discharge end of the flattening wheel, a second high-speed conveying wheel 21 arranged horizontally with the first high-speed conveying wheel, and a high-speed conveying belt 22 installed between the first high-speed conveying wheel and the second high-speed conveying wheel. When the laminated paper comes out between the upper and lower flattening wheels of the flattening wheel, the laminated paper is flattened, and then enters the high-speed conveying belt driven by the first high-speed conveying wheel and the second high-speed conveying wheel for high-speed conveyance.

[0027] In this embodiment 1, the paper receiving wheel is fixedly mounted on the flexographic printing machine through the paper receiving wheel frame 23. The paper receiving wheel frame serves as a frame for mounting the paper receiving wheel, and can achieve the effect of mounting and fixing the paper receiving wheel.

[0028] In this embodiment 1, the blowing pipe is in an inverted Z shape, and the air inlet end of the blowing pipe is connected to a blowing box 24. The blowing pipe is in an inverted Z shape, which is also similar to the shape of a serpentine nozzle, and a structure with a valve can be provided on the blowing pipe, and the blowing box provides blowing force to enter the blowing pipe.

[0029] In this embodiment 1, the blowing angle of the blowing nozzle facing the top surface of the laminated paper is set to 30-60 degrees. This blowing angle is the angle between the blowing nozzle and the top surface of the laminated paper, which can well achieve the effect of blowing air to the top surface of the laminated paper and pressing it down.

[0030] In this embodiment 1, the conveying speed of the laminated paper high-speed conveying belt assembly is 160m / min. When the above implementation is adopted, the conveying speed of the laminated paper high-speed conveying belt assembly can be increased from the original 80m / min to 160m / min, greatly improving the production speed and capacity.

[0031] In the present embodiment 1, the anti-blocking device for the smooth conveyance of the laminated paper produced by the flexographic printing machine is designed to have a transition plate between the high-speed belt and the low-speed belt, which is rotatable at the rear end (right side) to adjust the angle and the front end (left side) to adjust the height. At the same time, a suction hole is designed at the front end to absorb the tail of the laminated paper passing through. Finally, before the laminated paper enters the low-speed belt, a blowing air cushion is designed to blow toward the top of the laminated paper to form an air cushion, and a device is designed to suppress the laminated paper from entering the paper surface and reduce the speed. In this way, when the laminated paper enters the transition plate, the tail of the laminated paper will lie down under the suction to protect the tail of the paper from being skewed. At the same time, the head of the paper will generate an upward force to form a slight tilt to reduce the friction with the transition plate and improve the sliding property of the laminated paper. When the laminated paper enters the low-speed belt, the air blows to form an air cushion on the surface of the laminated paper and smoothly enters under the receiving wheel to form a pressure and deceleration on the laminated paper, ensuring that the laminated paper can maintain good sliding property and no skew after falling into the low-speed belt. Through the above improvements, the anti-blocking device can well solve the blockage problem of converting from high-speed conveying to low-speed conveying when the laminated paper is conveyed flat, and greatly improves the sliding property of the laminated paper, reduces the scrap rate caused by blockage, improves product quality, and at the same time can realize the high-speed conveying speed of the flexographic printing machine from 80m / min to 160m / min, greatly improving production efficiency and capacity.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the structure of the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. An anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine, characterized in that: It comprises a laminated paper high-speed conveying belt assembly (1), a laminated paper low-speed conveying platform assembly (2), and a transition plate assembly (3) located between the laminated paper high-speed conveying belt assembly and the laminated paper low-speed conveying platform assembly and used for connecting the transition of laminated paper conveying; The transition plate assembly comprises a long transition plate (4) arranged in the Y-axis direction when the laminated paper conveying direction is the X-axis direction, a rotating shaft (5) passing through the right side of the long transition plate and allowing the tail end of the long transition plate to rotate, an up-down adjustment device (6) installed on the front end of the long transition plate and capable of adjusting the up-down movement of the long transition plate, an air suction hole (7) provided on the top surface of the tail end of the long transition plate, an air suction box (8) installed at the bottom of the long transition plate, and an air suction pipe (9) connecting the air suction hole and the air suction box; The laminated paper low-speed conveying platform assembly comprises a paper receiving wheel (10) located at the upper end of the laminated paper receiving position and used for pressing the paper and reducing the conveying speed of the laminated paper, a blowing nozzle (11) located at the front end of the laminated paper and arranged corresponding to the top paper surface of the laminated paper, and a blowing pipe (12) connected to the blowing nozzle.

2. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 1 is characterized in that: The up-down adjustment device comprises a lower fixed plate (13) fixedly installed in the long transition plate, a lifting rod (14) extending upward through the lower fixed plate and fixedly installed, an upper fixed plate (15) which is fitted with the lifting rod to form a sliding connection and fixedly installed on the flexographic printing machine, and an adjustment sleeve (16) which is fitted with the lifting rod to form a sliding connection and is located above the upper fixed plate.

3. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 2 is characterized in that: The coated paper low-speed conveying platform assembly further comprises two low-speed conveying wheels (17) and a low-speed conveying belt (18) located between the two low-speed conveying wheels.

4. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 3 is characterized in that: The laminated paper discharge high-speed conveying belt assembly comprises a flattening wheel component (19) composed of upper and lower flattening wheels for flattening the laminated paper, a first high-speed conveying wheel (20) arranged at the paper discharge end of the flattening wheel component, a second high-speed conveying wheel (21) arranged horizontally with the first high-speed conveying wheel, and a high-speed conveying belt (22) installed between the first high-speed conveying wheel and the second high-speed conveying wheel.

5. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 4, characterized in that: The paper receiving wheel is fixedly mounted on the flexographic printing machine via a paper receiving wheel frame (23).

6. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 5, characterized in that: The blowing pipe is in an inverted Z shape, and the air inlet end of the blowing pipe is connected to a blowing box (24).

7. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 6, characterized in that: The blowing angle of the blowing nozzle facing the top paper surface of the coated paper is set to 30-60 degrees.

8. The anti-blocking device for smooth conveying of laminated paper produced by a flexographic printing machine according to claim 7, characterized in that: The conveying speed of the laminated paper high-speed conveying belt assembly is 160m / min.

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