A pretreatment device for recycling printing raw material paper

Abstract

This utility model provides a pre-treatment device for recycling printing raw material paper, relating to the field of paper recycling technology. It includes a support frame, a box, and a conveyor frame. A feeding hopper is fixedly installed on the surface of the box, and a discharge pipe is fixedly installed on the lower surface of the box. This utility model uses a starting motor to drive a bidirectional lead screw, causing two baffles to slide synchronously towards or away from each other along a sliding rod under the action of a sliding block. This precisely adjusts the size of the feeding hopper opening, controlling the feeding speed and amount of printing raw material paper, preventing blockage of the crushing roller due to excessive feeding. A flattening mechanism is installed on the conveyor frame, using a hydraulic cylinder to push a moving plate up and down along a guide rod. The moving plate drives the flattening roller to rise and fall, flattening the crushed paper conveyed by the conveyor belt. This effectively removes paper wrinkles and air gaps, preventing jamming or uneven crushing caused by uneven paper during subsequent crushing processes, thus improving overall processing quality and stability.

Description

Technical Field

[0001] This utility model relates to the field of paper recycling technology, and in particular to a pretreatment device for recycling printing raw material paper. Background Technology

[0002] Paper recycling is an important way to achieve resource recycling and reduce environmental pollution. The printing industry generates a large amount of waste paper every day. If this waste paper is discarded directly, it not only wastes resources but also has a negative impact on the environment. Recycling and reusing it can effectively save raw material resources such as wood and reduce energy consumption and pollutant emissions during the papermaking process.

[0003] In existing technologies, traditional pre-processing equipment for recycling printing raw materials lacks effective control measures in the feeding stage. It cannot flexibly adjust the feeding speed and amount according to the equipment's processing capacity and paper characteristics. This can easily lead to problems such as excessively fast feeding causing blockage of the crushing rollers, or excessively slow feeding affecting processing efficiency. On the other hand, during the paper processing, the treatment of paper flatness is often neglected. If unflattened paper is crushed directly, it is easy to cause jamming due to paper wrinkles, air gaps, etc., which can also cause uneven crushing and affect the quality of recycled paper. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology where inaccurate feeding control and paper not being pre-pressed easily lead to jamming due to paper wrinkles and air gaps. Therefore, a pre-treatment device for recycling printing raw material paper is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pretreatment device for recycling printing raw material paper, comprising a support, a box, and a conveyor frame. A feeding hopper is fixedly installed on the surface of the box, and a discharge pipe is fixedly installed on the lower surface of the box. Crushing roller one and crushing roller two are rotatably connected inside the box. Gear one is fixedly installed at one end of crushing roller one, and gear two is fixedly installed at one end of crushing roller two. Motor one is fixedly installed on the side of the box. A flattening mechanism is provided on the surface of the conveyor frame. Transmission shaft one and transmission shaft two are rotatably connected inside the conveyor frame. A conveyor belt is drivenly connected to the surfaces of transmission shaft one and transmission shaft two. Motor two is fixedly installed on the side of the conveyor frame. An adjusting frame is fixedly installed on the side of the feeding hopper. A baffle is slidably connected inside the adjusting frame. A sliding block is fixedly connected to the side of the baffle. A bidirectional lead screw is rotatably connected inside the adjusting frame. Motor three is fixedly installed on the side of the adjusting frame. A sliding rod is fixedly installed inside the adjusting frame.

[0006] The flattening mechanism includes a mounting frame, a movable plate slidably connected to the inner side of the mounting frame, a flattening roller provided on the inner side of the movable plate, a hydraulic cylinder fixedly mounted on the surface of the mounting frame, a movable block fixedly connected to the side of the movable plate, and a guide rod fixedly mounted inside the mounting frame.

[0007] Preferably, the output end of the first motor is fixedly connected to one end of the first crushing roller, and the first gear and the second gear mesh with each other.

[0008] Preferably, the output end of the second motor is fixedly connected to one end of the first transmission shaft.

[0009] Preferably, the output end of the motor is fixedly connected to one end of the bidirectional lead screw, the bidirectional lead screw is threadedly connected to the sliding block, and the number of baffles is two sets.

[0010] Preferably, the sliding block and the sliding rod are slidably connected.

[0011] Preferably, a guide plate is fixedly installed on the inner side of the conveyor frame, and the guide plate is located directly above the feed hopper.

[0012] Preferably, the output end of the hydraulic cylinder is fixedly connected to the surface of the moving plate.

[0013] Preferably, the movable block and the guide rod are slidably connected.

[0014] Preferably, a collection box is fixedly installed on the surface of the bracket, a dust pump is fixedly installed on the surface of the bracket, a dust suction head is fixedly installed on the inner side of the box, and a connecting pipe is fixedly connected to the output end of the dust pump.

[0015] Preferably, the input end of the vacuum pump is fixedly connected to one end of the vacuum head, and one end of the connecting pipe is connected to the inside of the collection box.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, the starting motor drives the bidirectional lead screw to rotate, so that the two baffles slide synchronously towards or away from each other along the slide bar under the drive of the sliding block. This precisely adjusts the size of the feed hopper opening, controls the feeding speed and amount of printing raw paper, and avoids clogging of the crushing roller due to excessive feeding. In addition, a flattening mechanism is set on the conveyor frame. The hydraulic cylinder pushes the moving plate to slide up and down along the guide rod. The moving plate drives the flattening roller to rise and fall, flattening the crushed paper conveyed by the conveyor belt. This effectively removes paper wrinkles and air gaps, avoids problems such as material jamming or uneven crushing caused by uneven paper in the subsequent crushing process, and improves the overall processing quality and stability.

[0018] 2. In this utility model, by installing a dust pump on the bracket and setting a dust suction head inside the box, the dust pump sucks in the paper scraps and dust generated during the crushing process through the dust suction head, and transports them to the collection box through the connecting pipe, thereby keeping the working environment clean, reducing dust pollution, and preventing dust from affecting the normal operation of the equipment. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a pretreatment device for recycling printing raw material paper;

[0020] Figure 2 A cross-sectional view of a pretreatment device for recycling printing raw material paper is provided for this utility model;

[0021] Figure 3 This utility model provides exploded views of crushing roller one and crushing roller two of a pretreatment device for recycling printing raw material paper;

[0022] Figure 4 An exploded view of the baffle of a pretreatment device for recycling printing raw material paper is provided for this utility model;

[0023] Figure 5 This utility model provides a partial structural diagram of the mounting frame, moving plate, and flattening roller of a pretreatment device for recycling printing raw material paper.

[0024] Legend: 1. Support frame; 2. Box body; 3. Conveyor frame; 4. Feed hopper; 5. Discharge pipe; 6. Crushing roller one; 7. Crushing roller two; 8. Gear one; 9. Gear two; 10. Motor one; 11. Flattening mechanism; 111. Mounting frame; 112. Moving plate; 113. Flattening roller; 114. Hydraulic cylinder; 115. Moving block; 116. Guide rod; 12. Conveyor shaft one; 13. Conveyor shaft two; 14. Conveyor belt; 15. Motor two; 16. Guide plate; 17. Adjusting frame; 18. Baffle; 19. Sliding block; 20. Bidirectional lead screw; 21. Motor three; 22. Slide rod; 23. Collection box; 24. Dust pump; 25. Dust suction head; 26. Connecting pipe. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: a pre-treatment device for recycling printing raw material paper, including a support 1, a box 2, and a conveyor frame 3. A feed hopper 4 is fixedly installed on the surface of the box 2, and a discharge pipe 5 is fixedly installed on the lower surface of the box 2. A crushing roller 6 and a crushing roller 7 are rotatably connected inside the box 2. A gear 8 is fixedly installed at one end of the crushing roller 6, and a gear 9 is fixedly installed at one end of the crushing roller 7. A motor 10 is fixedly installed on the side of the box 2, and a flattening mechanism 11 is provided on the surface of the conveyor frame 3. The conveyor frame 3 is internally rotatably connected to a first conveyor shaft 12 and a second conveyor shaft 13. A conveyor belt 14 is connected to the surfaces of the first conveyor shaft 12 and the second conveyor shaft 13. A second motor 15 is fixedly mounted on the side of the conveyor frame 3. An adjusting frame 17 is fixedly mounted on the side of the feed hopper 4. A baffle 18 is slidably connected internally to the adjusting frame 17. A sliding block 19 is fixedly connected to the side of the baffle 18. A double-acting lead screw 20 is rotatably connected internally to the adjusting frame 17. A third motor 21 is fixedly mounted on the side of the adjusting frame 17. An internally fixed sliding rod 22 is installed. The flattening mechanism 11 includes a mounting frame 111. A movable plate 112 is slidably connected to the inner side of the mounting frame 111. A flattening roller 113 is provided on the inner side of the movable plate 112. A hydraulic cylinder 114 is fixedly installed on the surface of the mounting frame 111. A movable block 115 is fixedly connected to the side of the movable plate 112. A guide rod 116 is fixedly installed inside the mounting frame 111. The output end of motor 10 is fixedly connected to one end of crushing roller 6. Gear 18 and gear 29 mesh with each other. The output end of 15 is fixedly connected to one end of the conveyor shaft 12, the output end of the motor 21 is fixedly connected to one end of the bidirectional lead screw 20, the bidirectional lead screw 20 is threadedly connected to the sliding block 19, there are two sets of baffles 18, the sliding block 19 is slidably connected to the slide rod 22, the inner side of the conveyor frame 3 is fixedly installed with a guide plate 16, the guide plate 16 is located directly above the feed hopper 4, the output end of the hydraulic cylinder 114 is fixedly connected to the surface of the moving plate 112, and the moving block 115 is slidably connected to the guide rod 116.

[0028] In this embodiment, the conveyor belt 14 is driven by the starter motor 15 to transport the shredded paper through the guide plate 16 to the feed hopper 4 and then drop into the box 2 for crushing. At the same time, the hydraulic cylinder 114 can be activated to push the moving plate 112 to slide down along the guide rod 116. The moving plate 112 drives the flattening roller 113 to descend and flatten the shredded paper on the conveyor belt 14 to ensure that the paper is flat. The double screw 20 is driven to rotate by the starter motor 21. Since the double screw 20 is threadedly connected to the sliding block 19, the two sets of baffles 18 can slide along the sliding rod 22 to flexibly adjust the opening size of the feed hopper 4 and control the paper feeding speed. Then the first motor 10 is activated to drive the first crushing roller 6 to rotate. Through the meshing of the first gear 8 and the second gear 9, the second crushing roller 7 rotates synchronously in opposite directions to crush the paper entering the box 2. The crushed paper falls from the discharge pipe 5.

[0029] Example 2: As Figures 1-5 As shown, a collection box 23 is fixedly installed on the surface of the bracket 1, a vacuum pump 24 is fixedly installed on the surface of the bracket 1, a vacuum head 25 is fixedly installed on the inner side of the box 2, a connecting pipe 26 is fixedly connected to the output end of the vacuum pump 24, the input end of the vacuum pump 24 is fixedly connected to one end of the vacuum head 25, and one end of the connecting pipe 26 is connected to the inside of the collection box 23.

[0030] In this embodiment, during the paper crushing process, the dust pump 24 is activated, and the dust suction head 25 sucks in the paper scraps and dust generated inside the box 2 due to crushing. The dust is then transported to the collection box 23 through the connecting pipe 26. This effectively prevents dust generated during the crushing process from flying around, maintains a clean and hygienic working environment, reduces the harm of dust to the health of operators, prevents dust from accumulating inside the equipment, reduces equipment failures caused by dust, ensures the stable operation of the printing raw material paper recycling pretreatment device, and extends the service life of the equipment.

[0031] The working principle of this embodiment is as follows: In use, the printing raw material paper to be processed is first placed on the conveyor belt 14 of the conveyor frame 3. Then, motor 2 15 is started, driving the first conveyor shaft 12 to rotate. Through the transmission of the conveyor belt 14, the second conveyor shaft 13 rotates synchronously, thereby driving the conveyor belt 14 to operate and conveying the paper to the feed hopper 4 via the guide plate 16. At this time, motor 3 21 is started, driving the bidirectional lead screw 20 to rotate. Since the bidirectional lead screw 20 is threadedly connected to the sliding block 19, the two sets of baffles 18 slide synchronously towards or away from each other along the sliding rod 22 under the drive of the sliding block 19, adjusting the opening size of the feed hopper 4 and controlling the speed at which the paper enters the box 2. Next, motor 10 is started, driving the first crushing roller 6 to rotate. The gear 8 on crushing roller 16 meshes with the gear 9 on crushing roller 27, causing crushing roller 27 to rotate in the opposite direction, crushing the paper falling from the feed hopper 4 into the box 2. The crushed paper falls from the discharge pipe 5. During the paper conveying process, the hydraulic cylinder 114 is activated. The output end of the hydraulic cylinder 114 pushes the moving plate 112 to slide down along the guide rod 116. The moving plate 112 drives the flattening roller 113 to descend, flattening the paper on the conveyor belt 14. During the paper crushing process, the dust pump 24 is activated. The dust pump 24 sucks in the paper scraps and dust generated by crushing through the dust suction head 25 inside the box 2, and transports them to the collection box 23 on the support 1 through the connecting pipe 26, completing the entire pre-treatment process of printing raw material paper recycling.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pretreatment device for recycling printing raw material paper, comprising a support (1), a housing (2), and a conveyor frame (3), characterized in that: A feed hopper (4) is fixedly installed on the surface of the box (2), and a discharge pipe (5) is fixedly installed on the lower surface of the box (2). A crushing roller (6) and a crushing roller (7) are rotatably connected inside the box (2). A gear (8) is fixedly installed at one end of the crushing roller (6), and a gear (9) is fixedly installed at one end of the crushing roller (7). A motor (10) is fixedly installed on the side of the box (2). A flattening mechanism (11) is provided on the surface of the conveyor frame (3). A transmission shaft (12) and a transmission shaft (13) are rotatably connected inside the conveyor frame (3). A conveyor belt (14) is connected to the surface of the first conveyor shaft (12) and the second conveyor shaft (13). A second motor (15) is fixedly installed on the side of the conveyor frame (3). An adjustment frame (17) is fixedly installed on the side of the feed hopper (4). A baffle (18) is slidably connected inside the adjustment frame (17). A sliding block (19) is fixedly connected to the side of the baffle (18). A two-way lead screw (20) is rotatably connected inside the adjustment frame (17). A third motor (21) is fixedly installed on the side of the adjustment frame (17). A slide rod (22) is fixedly installed inside the adjustment frame (17). The flattening mechanism (11) includes a mounting frame (111), a movable plate (112) is slidably connected to the inner side of the mounting frame (111), a flattening roller (113) is provided on the inner side of the movable plate (112), a hydraulic cylinder (114) is fixedly installed on the surface of the mounting frame (111), a movable block (115) is fixedly connected to the side of the movable plate (112), and a guide rod (116) is fixedly installed inside the mounting frame (111).

2. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: The output end of the motor (10) is fixedly connected to one end of the crushing roller (6), and the gear (8) and gear (9) mesh with each other.

3. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: The output end of the second motor (15) is fixedly connected to one end of the first transmission shaft (12).

4. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: The output end of the motor (21) is fixedly connected to one end of the bidirectional lead screw (20), the bidirectional lead screw (20) is threadedly connected to the sliding block (19), and there are two sets of baffles (18).

5. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: The sliding block (19) is slidably connected to the slide rod (22).

6. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: A guide plate (16) is fixedly installed on the inner side of the conveyor frame (3), and the guide plate (16) is located directly above the feed hopper (4).

7. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: The output end of the hydraulic cylinder (114) is fixedly connected to the surface of the moving plate (112).

8. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: The movable block (115) is slidably connected to the guide rod (116).

9. The pretreatment device for recycling printing raw material paper according to claim 1, characterized in that: A collection box (23) is fixedly installed on the surface of the bracket (1), a vacuum pump (24) is fixedly installed on the surface of the bracket (1), a vacuum head (25) is fixedly installed on the inner side of the box (2), and a connecting pipe (26) is fixedly connected to the output end of the vacuum pump (24).

10. The pretreatment device for recycling printing raw material paper according to claim 9, characterized in that: The input end of the vacuum pump (24) is fixedly connected to one end of the vacuum head (25), and one end of the connecting pipe (26) is connected to the inside of the collection box (23).

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