A paper scrap collection and cleaning device for a rotary printing folding machine

Abstract

This utility model discloses a paper scrap cleaning and collection device for a rotary printing folding machine, belonging to the field of rotary printing technology. It includes a housing, with a first rotating shaft and a second rotating shaft rotatably connected to both sides of the inner wall of the housing. A fixed frame is connected to the opposite ends of the first and second rotating shafts. Its advantages are that by setting up a feeding hopper, telescopic pipe, collection tank, and negative pressure fan, it continuously extracts and collects dust generated during slitting, thereby avoiding dust accumulation inside the folding machine and causing wear to the equipment. By setting up the first rotating shaft, the second rotating shaft, and a lever, the angle of the feeding hopper can be adjusted according to usage requirements, thus improving the dust collection effect of the feeding hopper. By setting up a sliding sleeve, sliding plate, tension spring, and limiting bracket, the second rotating shaft is limited, thereby fixing the adjusted angle after the feeding hopper is adjusted to a suitable position.

Description

Technical Field

[0001] This utility model relates to the field of rotary printing technology, and more specifically, it relates to a paper scrap collection and cleaning device for rotary printing folding machines. Background Technology

[0002] Rotary printing presses generally refer to commercial rotary printing presses. Commercial rotary offset printing presses are a type of web offset printing press, capable of printing high-resolution color prints at 175 lines per inch or more. During the printing process, the paper passes through the printing unit for color replication and is then folded by a folding machine according to the production process. Due to factors such as paper quality, the folding machine generates trace amounts of dust when folding and cutting the paper. This dust accumulates around the printing equipment, causing unnecessary wear and tear. Damaged equipment precision affects product printing quality and increases the consumption of raw and auxiliary materials. At the same time, the dust can clog the filters of the air conditioning system in the workshop, leading to excessive dust concentrations and affecting the physical and mental health of employees.

[0003] In related technologies, the accumulated dust is typically cleaned up regularly by staff.

[0004] The existing technical solutions mentioned above have the following drawbacks: regular cleaning by staff is time-consuming and labor-intensive, and the results are not ideal. In actual production, dust will still accumulate inside the folding machine during the regular cleaning period, thus causing unnecessary wear and tear on the equipment. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a paper scrap cleaning and collection device for rotary printing folding machines, which has the feature of continuously cleaning and collecting the generated dust.

[0007] (2) Technical solution

[0008] To achieve the above objectives, this utility model provides a paper scrap cleaning and collection device for a rotary printing folding machine, comprising a housing, wherein a first rotating shaft and a second rotating shaft are rotatably connected to both sides of the inner wall of the housing, and a fixed frame is connected to the opposite ends of the first rotating shaft and the second rotating shaft. Two feeding hoppers are connected inside the fixed frame, and a collection tank and a negative pressure fan are provided on one side of the housing.

[0009] The feed hopper, collection tank, and negative pressure fan work together to extract and collect the generated dust.

[0010] Both feed hoppers are equipped with H-shaped scrapers with inclined tops, which cooperate with the inner walls of the two feed hoppers;

[0011] A limit bracket is provided on one side of the housing, and the other end of the second rotating shaft passes through the housing and is connected to a stop block. The limit bracket cooperates with the stop block at one end of the second rotating shaft to limit the movement of the second rotating shaft.

[0012] When using the paper scrap collection device for a rotary printing folding machine according to this technical solution, the angle of the feed hopper can be easily adjusted according to the usage requirements through the first and second rotating shafts, so as to improve the dust collection effect of the feed hopper. Through the special-shaped scraper, the dust accumulated on the inner wall of the feed hopper is scraped away and cleaned during the dust collection process.

[0013] Furthermore, both feed hoppers have discharge ports at their bottoms, and both discharge ports are connected to telescopic pipes at their bottoms. The other ends of both telescopic pipes pass through the housing and are connected to the air inlet of the collection tank. The input end of the negative pressure fan is connected to an exhaust pipe, and the other end of the exhaust pipe is connected to the air outlet of the collection tank.

[0014] Furthermore, two sliding seats are connected to one side of the fixed frame, and sliding rods are slidably connected inside the two sliding seats. A connecting rod is connected to one side of the top of each of the two scrapers, and the other end of each of the two connecting rods is connected to the top of the sliding rod.

[0015] Furthermore, a fixed seat is connected to one side of the fixed frame, the fixed seat is located on one side of the slide rod, an electric push rod is connected to the side of the fixed seat near the slide rod, a push plate is connected to the output end of the electric push rod, the push plate is connected to one end of the slide rod near the sliding seat, and the slide rod is located between the electric push rod and the fixed frame.

[0016] Furthermore, a sliding sleeve is connected to one side of the housing. The sliding sleeve is located below the second rotating shaft. Sliding grooves are provided on both sides of the sliding sleeve. A sliding plate is slidably connected in the two sliding grooves. The sliding plate is located inside the sliding sleeve. A tension spring is provided between the inner wall of the sliding sleeve and the sliding plate.

[0017] Furthermore, one side of the limiting bracket is connected to the side of the slide away from the tension spring, and a lever is connected to the second rotating shaft, the lever being located on one side of the housing.

[0018] (3) Beneficial effects

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. By setting up a feeding hopper, telescopic pipe, collection tank, and negative pressure fan, the dust generated during slitting is continuously extracted and collected, thus avoiding dust accumulation inside the folding machine and causing wear to the equipment. By setting up a first rotating shaft, a second rotating shaft, and a lever, the angle of the feeding hopper can be adjusted according to usage requirements, thereby improving the dust collection effect of the feeding hopper. By setting up a sliding sleeve, a sliding plate, a tension spring, and a limit bracket, the second rotating shaft is limited, thus fixing the adjusted angle after the feeding hopper is adjusted to a suitable position.

[0021] 2. By setting up scrapers, sliding seats, sliding rods and electric push rods, the scrapers are pushed to move against the inner wall of the feed hopper to scrape away the dust remaining on the inner wall of the feed hopper, so that it can fall smoothly into the discharge port for discharge. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 4 This utility model Figure 1 Schematic diagram of the structure of the central feed hopper;

[0027] Figure 5 This utility model Figure 1 Schematic diagram of the middle scraper;

[0028] Figure 6 This utility model Figure 1 A schematic diagram of the structure of the middle feed hopper in cross section.

[0029] The labels in the attached diagram are:

[0030] 1. Housing; 2. First rotating shaft; 3. Second rotating shaft; 4. Fixing frame; 5. Feed hopper; 6. Discharge port; 7. Telescopic pipe; 8. Collection tank; 9. Negative pressure fan; 10. Exhaust pipe; 11. Stop block; 12. Lever; 13. Sliding sleeve; 14. Slide groove; 15. Slide plate; 16. Tension spring; 17. Limiting bracket; 18. Scraper; 19. Connecting rod; 20. Sliding seat; 21. Sliding rod; 22. Fixing seat; 23. Electric push rod; 24. Push plate. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0032] Example:

[0033] This utility model provides a technical solution: a paper scrap collection and cleaning device for a rotary printing folding machine, including a housing 1, such as... Figure 1 and Figure 2 The inner walls of the housing 1 are respectively rotatably connected to a first rotating shaft 2 and a second rotating shaft 3, and the opposite ends of the first rotating shaft 2 and the second rotating shaft 3 are connected to a fixed frame 4, such as... Figure 6 The fixed frame 4 is connected to two feeding hoppers 5. A collection tank 8 and a negative pressure fan 9 are provided on one side of the box body 1. The feeding hoppers 5, collection tank 8 and negative pressure fan 9 work together to extract and collect the generated dust. Each of the two feeding hoppers 5 is equipped with a top-tilted "H"-shaped scraper 18, which cooperates with the inner wall of the two feeding hoppers 5. A limit bracket 17 is provided on one side of the box body 1. The other end of the second rotating shaft 3 passes through the box body 1 and is connected to a stop block 11. The limit bracket 17 cooperates with the stop block 11 at one end of the second rotating shaft 3 to limit the second rotating shaft 3.

[0034] Specifically, each of the two feed hoppers 5 has a discharge port 6 at its bottom, and each discharge port 6 is connected to a telescopic pipe 7 at its bottom. The other end of each telescopic pipe 7 passes through the housing 1 and connects to the air inlet of the collection tank 8. The input end of the negative pressure fan 9 is connected to an exhaust pipe 10, and the other end of the exhaust pipe 10 is connected to the air outlet of the collection tank 8. Figure 4 and Figure 5Two sliding seats 20 are connected to one side of the fixed frame 4. A sliding rod 21 is slidably connected within each sliding seat 20. A connecting rod 19 is connected to one side of the top of each of the two scrapers 18. The other ends of the two connecting rods 19 are connected to the top of the sliding rod 21. A fixed seat 22 is connected to one side of the fixed frame 4, located on one side of the sliding rod 21. An electric push rod 23 is connected to the side of the fixed seat 22 closest to the sliding rod 21. A push plate 24 is connected to the output end of the electric push rod 23. The push plate 24 is connected to one end of the sliding rod 21 on the side closest to the sliding seat 20. The sliding rod 21 is located between the electric push rod 23 and the fixed frame 4. Figure 3 A sliding sleeve 13 is connected to one side of the housing 1. The sliding sleeve 13 is located below the second rotating shaft 3. Sliding grooves 14 are provided on both sides of the sliding sleeve 13. A sliding plate 15 is slidably connected in the two sliding grooves 14. The sliding plate 15 is located inside the sliding sleeve 13. A tension spring 16 is provided between the inner wall of the sliding sleeve 13 and the sliding plate 15. One side of the limiting bracket 17 is connected to the side of the sliding plate 15 away from the tension spring 16. A lever 12 is connected to the second rotating shaft 3. The lever 12 is located on one side of the housing 1. By adopting the above technical solution, the telescopic tube 7, the collection tank 8, and the negative pressure fan 9 work together to create a negative pressure state inside the feed hopper 5, thereby generating suction in the feed hopper 5 to extract and collect the generated dust. The sliding seat 20, the sliding rod 21, the electric push rod 23, and the push plate 24 drive the scraper 18 to reciprocate inside the feed hopper 5, continuously cleaning the dust on the inner wall of the feed hopper 5. The sliding sleeve 13, the sliding plate 15, the tension spring 16, and the limiting bracket 17 limit the second rotating shaft 3 after the angle of the feed hopper 5 is adjusted, thereby achieving the effect of limiting the angle of the feed hopper 5 and preventing the feed hopper 5 from rotating during the dust collection process.

[0035] The working principle of this utility model is as follows: During use, the operator can slide the limiting bracket 17 out of the sliding sleeve 13, causing the slide plate 15 to slide within the two sliding grooves 14. This pulls the tension spring 16 between the slide plate 15 and the sliding sleeve 13, causing the tension spring 16 to undergo elastic deformation. At this time, the tension spring 16 generates a reverse force. As the limiting bracket 17 continues to be pulled out, the other side of the limiting bracket 17 disengages from the stop block 11 on the second rotating shaft 3. At this time, the second rotating shaft 3 is no longer limited, and the operator can rotate the second rotating shaft 3 by using the lever 12. When the second rotating shaft 3 rotates, it drives the fixed frame 4 to rotate synchronously. The first rotating shaft 2 on the other side of the fixed frame 4 cooperates with the rotation. When the fixed frame 4 rotates, it drives the internal feed hopper 5 to rotate synchronously for adjustment. This allows for adjustment of the feed angle of the feed hopper 5 according to usage requirements. After adjustment, the operator releases the limiting bracket 17. At this point, the limiting bracket 17 is only subjected to the tension force generated by the tension spring 16. The tension spring 16 pulls the sliding plate 15 towards the sliding sleeve 13, causing one side of the limiting bracket 17 to insert into the sliding sleeve 13, and the other side of the limiting bracket 17 to approach the second rotating shaft 3, until the other side of the limiting bracket 17 is inserted into the second rotating shaft 3. Through cooperation with the stop block 11 on the second rotating shaft 3, the second rotating shaft 3 is limited, preventing it from rotating during dust collection and thus avoiding interference with the feed. The rotation of hopper 5 affects its dust collection efficiency. After adjusting the angle of hopper 5, the negative pressure fan 9 starts working to evacuate the collection tank 8. The air pressure inside the collection tank 8 gradually decreases, becoming a negative pressure state. Through the telescopic pipe 7 connected to the air inlet of the collection tank 8, a negative pressure is generated inside hopper 5 to extract the dust generated during cutting. The extracted dust enters hopper 5, passes through the outlet 6 at the bottom of hopper 5, and enters the telescopic pipe 7, then into the collection tank 8, thus continuously collecting dust for continuous use. During the collection process, power is supplied to the electric push rod 23, which extends and drives the push plate 24 towards the first... The rotating shaft 2 moves in the direction of the first rotating shaft 2, causing the slide rod 21 to slide in the sliding seat 20 towards the first rotating shaft 2. The two connecting rods 19 on the slide rod 21 drive the two scrapers 18 to move synchronously in the two feed hoppers 5. The scrapers 18 move in contact with the inner wall of the feed hopper 5, thereby scraping away the dust accumulated on the inner wall of the feed hopper 5, so that the dust on the inner wall of the feed hopper 5 falls smoothly into the discharge port 6 for discharge. After the scrapers 18 move to the other side in the feed hopper 5, the electric push rod 23 begins to shorten, and the two scrapers 18 move in opposite directions in the two feed hoppers 5 through the connecting rod 19, thereby continuously cleaning the inner wall of the feed hopper 5, which is convenient for operators to use.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A paper scrap collection and cleaning device for a rotary printing folding machine, comprising a housing (1), characterized in that: The inner walls of the box (1) are respectively rotatably connected to a first rotating shaft (2) and a second rotating shaft (3). The opposite ends of the first rotating shaft (2) and the second rotating shaft (3) are connected to a fixed frame (4). The fixed frame (4) is connected to two feeding hoppers (5). A collection tank (8) and a negative pressure fan (9) are provided on one side of the box (1). The feed hopper (5), collection tank (8) and negative pressure fan (9) work together to extract and collect the generated dust; Both feed hoppers (5) are provided with H-shaped scrapers (18) with inclined tops, which cooperate with the inner walls of the two feed hoppers (5); A limiting bracket (17) is provided on one side of the housing (1), and the other end of the second rotating shaft (3) passes through the housing (1) and is connected to a stop block (11). The limiting bracket (17) cooperates with the stop block (11) at one end of the second rotating shaft (3) to limit the second rotating shaft (3).

2. The paper scrap collection and cleaning device for a rotary printing folding machine according to claim 1, characterized in that: Both feed hoppers (5) have discharge ports (6) at their bottoms. Both discharge ports (6) are connected to telescopic pipes (7) at their bottoms. The other ends of both telescopic pipes (7) pass through the housing (1) and are connected to the air inlet of the collection tank (8). The input end of the negative pressure fan (9) is connected to an exhaust pipe (10), and the other end of the exhaust pipe (10) is connected to the air outlet of the collection tank (8).

3. The paper scrap collection and cleaning device for a rotary printing folding machine according to claim 1, characterized in that: Two sliding seats (20) are connected to one side of the fixed frame (4). A sliding rod (21) is slidably connected inside the two sliding seats (20). A connecting rod (19) is connected to one side of the top of each of the two scrapers (18). The other end of each of the two connecting rods (19) is connected to the top of the sliding rod (21).

4. The paper scrap collection and cleaning device for a rotary printing folding machine according to claim 3, characterized in that: A fixed seat (22) is connected to one side of the fixed frame (4). The fixed seat (22) is located on one side of the slide rod (21). An electric push rod (23) is connected to the side of the fixed seat (22) near the slide rod (21). A push plate (24) is connected to the output end of the electric push rod (23). The push plate (24) is connected to one end of the slide rod (21) near the sliding seat (20). The slide rod (21) is located between the electric push rod (23) and the fixed frame (4).

5. The paper scrap collection and cleaning device for a rotary printing folding machine according to claim 1, characterized in that: A sliding sleeve (13) is connected to one side of the housing (1). The sliding sleeve (13) is located below the second rotating shaft (3). Sliding grooves (14) are provided on both sides of the sliding sleeve (13). A sliding plate (15) is slidably connected in the two sliding grooves (14). The sliding plate (15) is located inside the sliding sleeve (13). A tension spring (16) is provided between the inner wall of the sliding sleeve (13) and the sliding plate (15).

6. The paper scrap collection and cleaning device for a rotary printing folding machine according to claim 5, characterized in that: One side of the limiting bracket (17) is connected to the side of the slide plate (15) away from the tension spring (16), and a lever (12) is connected to the second rotating shaft (3), the lever (12) being located on one side of the housing (1).

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