Pulper
The design of the automated feeding device solved the problem of uneven feeding during manual feeding of the pulper, achieving a continuous and stable material supply and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SANXIAN PAPER CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-15
AI Technical Summary
The feeding process of existing pulpers relies on manual operation, which leads to uneven material distribution, affects processing efficiency, and prolongs the material processing cycle.
An automated feeding device is adopted, including a storage bin, a bucket conveyor belt, and a pushing device. Through the coordinated movement of the drive motor, the rotating shaft, and the cam, the material is continuously pushed, reducing manual intervention.
It enables continuous and uniform feeding of the pulper, improves processing efficiency, reduces manual intervention, and ensures production stability and high efficiency.
Smart Images

Figure CN224243551U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pulping technology, and in particular to a pulping machine. Background Technology
[0002] A pulper is a specialized piece of equipment used in the pulp and paper industry. It is mainly used to break down and disperse raw materials such as waste paper, cardboard, or pulp board into fiber suspensions. Its core structure typically consists of a tank, a rotor (equipped with impellers or spiral blades), a screen plate, and a drive unit. During operation, the mechanical shearing force generated by the high-speed rotation of the rotor and the hydraulic eddy current action rapidly break down the raw materials and separate impurities (such as plastics and metals). Pulpers are divided into types such as hydraulic pulpers (low-consistency, medium-consistency, and high-consistency) and rotary drum pulpers. They are characterized by high breaking down efficiency, low energy consumption, and strong adaptability. They are widely used in waste paper recycling, pulp preparation, and other processes, and are one of the key pieces of equipment for realizing the recycling of fiber resources.
[0003] Several utility model patents in the field of pulping technology are disclosed in the prior art. Among them, utility model patent application number CN217026486U discloses a pulper, specifically described as follows: This utility model relates to the field of pulping technology and discloses a pulper, including a processing tank. The top of the processing tank has a feed inlet. A conveyor belt is arranged on one side of the processing tank. A baffle plate is vertically arranged above the conveyor belt. A passage is formed between the bottom of the baffle plate and the top of the conveyor belt. Several push plates are vertically arranged on the conveyor belt. Two limiting plates are arranged on the side of the baffle plate near the feed inlet. The limiting plates are hinged to the baffle plate. The axis of the movement trajectory of the free end of the limiting plate is vertical. A torsion spring is arranged at the hinge point between the limiting plate and the baffle plate. When the torsion spring is in its natural state, the limiting plate is parallel to the baffle plate. This utility model eliminates the need for frequent manual feeding, is easy to operate, and saves manpower.
[0004] In the existing technology, the feeding process of pulpers relies on manual operation, requiring operators to continuously feed materials onto the conveyor belt. This not only increases the frequency of manual intervention, but also causes uneven material distribution due to unstable feeding intervals, which in turn affects the processing efficiency of the pulper. This discontinuous and uneven feeding method may lead to fluctuations in the load of the pulper, prolong the material processing cycle, and reduce the overall production efficiency. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the aforementioned problems in the prior art, this utility model provides a pulper that solves the problem that in the prior art, the feeding process of the pulper relies on manual operation, requiring operators to continuously feed materials onto the conveyor belt. This not only increases the frequency of manual intervention but also leads to uneven material distribution due to unstable feeding intervals, thereby affecting the processing efficiency of the pulper. This discontinuous and uneven feeding method may cause fluctuations in the pulper's load, prolong the material processing cycle, and reduce overall production efficiency.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, the main technical solution adopted by this utility model is as follows:
[0009] A pulper includes a base plate and a pulper body, the pulper body being fixedly connected to the base plate, a feeding device being fixedly connected to the base plate, and a pushing device being fixedly connected inside the feeding device;
[0010] The feeding device includes a storage box, a protective shell is installed on one side of the storage box, a bucket conveyor belt is installed inside the protective shell, and a discharge shell is fixedly connected to the output port of the bucket conveyor belt, and the discharge shell is positioned corresponding to the feed port of the pulper body.
[0011] The feeding device also includes a feeding hopper and a support frame. The feeding hopper is connected through the storage box, and the support frame is fixedly connected to the bottom of the protective shell and the bottom plate.
[0012] The storage box is fixedly connected to one side of the protective shell, and a sealing gasket is provided at the connection between the two.
[0013] The pushing device includes a connecting plate, a drive motor, and a vertical plate. The connecting plate is fixedly connected to the base plate. A mounting bracket is fixedly connected to the outside of the drive motor and to the base plate. A rotating shaft is rotatably connected inside the connecting plate. The output end of the drive motor is fixedly connected to the rotating shaft, which is rotatably connected inside the connecting plate. A cam is sleeved on the rotating shaft and rests on the base plate. The vertical plate is fixedly connected to one side of the connecting plate. A sliding rod is provided inside the vertical plate, and a return spring is sleeved on the sliding rod. A pushing block is fixedly connected to one end of the sliding rod, and a pushing plate is fixedly connected to one side of the pushing block.
[0014] The push plate is slidably connected inside the storage box, and the slide rod and the vertical plate form a sliding connection.
[0015] One end of the reset spring is fixedly connected to the outside of the vertical plate, and the other end of the reset spring is fixedly connected to the outside of the slide rod.
[0016] The push plate is L-shaped, and its height is less than that of the storage bin.
[0017] (III) Beneficial Effects
[0018] The beneficial effects of this utility model are as follows: When it is necessary to add material to the pulper body, a large amount of material is first put into the feed hopper at once. The material falls into the storage box through the feed hopper by its own gravity. The bottom of the storage box is equipped with a push plate. The material slides into the protective shell under the guidance of the inclined surface of the push plate. At this time, the bucket conveyor belt starts to run. The continuous movement of the bucket conveyor belt transports the material that has entered the protective shell towards the discharge shell, and finally enters the pulper body through the discharge shell. In order to ensure that the material in the storage box can be continuously supplied to the protective shell, the drive motor is started. The drive motor drives the rotating shaft to rotate synchronously. A cam is provided on the rotating shaft. The cam rotates with the rotating shaft and periodically applies a squeezing force to the slide bar during the rotation. The slide bar slides up and down along the vertical plate under the squeezing action of the cam. During the movement, the slide bar is connected to the push block, which moves synchronously with the slide bar, thereby driving the push plate to make a reciprocating pushing motion. When the push plate slides, it applies a pushing force to the material in the storage box, continuously pushing the material to the inclined surface of the push plate, so that the material enters the protective shell. With the continuous operation of the bucket conveyor belt, the material entering the protective shell is stably transported to the discharge shell and finally sent to the pulper body for subsequent processing. The entire structure realizes the continuous pushing process of material from the storage box to the protective shell through the coordinated movement of the drive motor, rotating shaft, cam, slide bar, push block and push plate, ensuring the continuity and efficiency of the feeding operation, while reducing manual intervention. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional structural diagram of the feeding device of this utility model;
[0021] Figure 3 This is a three-dimensional cross-sectional structural diagram of the protective shell of this utility model;
[0022] Figure 4 This utility model Figure 3 An enlarged structural diagram of part A in the middle.
[0023] [Explanation of Labels in the Attached Image]
[0024] 1. Base plate; 2. Pulper body; 3. Feeding device; 301. Storage box; 302. Feed hopper; 303. Protective shell; 304. Bucket conveyor belt; 305. Discharge shell; 306. Support frame; 4. Pushing device; 401. Connecting plate; 402. Drive motor; 403. Mounting frame; 404. Rotating shaft; 405. Cam; 406. Vertical plate; 407. Slide rod; 408. Return spring; 409. Push block; 410. Push plate. Detailed Implementation
[0025] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Please refer to Figures 1 to 4 As shown, a pulper of the present invention includes a base plate 1 and a pulper body 2. The pulper body 2 is fixedly connected to the base plate 1. A feeding device 3 is fixedly connected to the base plate 1. A pushing device 4 is fixedly connected inside the feeding device 3.
[0027] The feeding device 3 includes a storage bin 301, a protective shell 303 installed on one side of the storage bin 301, a bucket conveyor belt 304 installed inside the protective shell 303, and a discharge shell 305 fixedly connected to the output port of the bucket conveyor belt 304, with the discharge shell 305 corresponding to the feed inlet of the pulper body 2. In actual implementation, when it is necessary to add material to the pulper body 2, a large amount of material is first put into the feed hopper 302 at once. The material falls into the storage bin 301 by its own gravity. The bottom of the storage bin 301 is provided with a push plate 410. The material slides into the protective shell 303 under the guidance of the inclined surface of the push plate 410. At this time, the bucket conveyor belt 304 starts to run. The continuous movement of the bucket conveyor belt 304 transports the material entering the protective shell 303 towards the discharge shell 305, and finally enters the pulper body 2 through the discharge shell 305.
[0028] Optionally, the feed hopper 302 is connected through the storage tank 301, the support frame 306 is fixedly connected to the bottom of the protective shell 303, and the support frame 306 is fixedly connected to the base plate 1. The storage tank 301 is fixedly connected to one side of the protective shell 303, and a sealing gasket is provided at the connection between the two. In actual implementation, the feed hopper 302 is connected through the storage tank 301, ensuring that the material falling from the feed hopper 302 can be directly fed into the storage tank 301, avoiding material splashing or accumulation at the interface, and improving the stability and accuracy of the feeding process.
[0029] Optionally, the pushing device 4 includes a connecting plate 401, a drive motor 402, and a vertical plate 406. The connecting plate 401 is fixedly connected to the base plate 1. A mounting bracket 403 is fixedly connected to the outside of the drive motor 402, and the mounting bracket 403 is fixedly connected to the base plate 1. A rotating shaft 404 is rotatably connected inside the connecting plate 401. The output end of the drive motor 402 is fixedly connected to the rotating shaft 404, and the rotating shaft 404 is rotatably connected inside the connecting plate 401. A cam 405 is sleeved on the rotating shaft 404 and rests on the base plate 1. The vertical plate 406 is fixedly connected to one side of the connecting plate 401. A slide rod 407 is provided inside the vertical plate 406, and a return spring 408 is provided outside the slide rod 407. A push block 409 is fixedly connected to one end of the slide rod 407, and a push plate 410 is fixedly connected to one side of the push block 409. The push plate 410 is slidably connected inside the storage box 301. A sliding connection is formed between the slide rod 407 and the vertical plate 406. One end of the return spring 408 is fixedly connected to the outside of the vertical plate 406, and the other end of the return spring 408 is fixedly connected to the outside of the slide rod 407. The push plate 410 is L-shaped, and the height of the push plate 410 is less than the height of the storage box 301. In actual implementation, the return spring 408 is set between the slide rod 407 and the vertical plate 406. After the cam 405 completes the compression of the slide rod 407, the return spring 408 can provide a reverse elastic force, causing the slide rod 407 to quickly return to its initial position. Through the cooperation of the return spring 408, the slide rod 407 and the push plate 410 can quickly reset after each compression cycle, preparing for the next pushing action, thereby ensuring the continuity and stability of the pushing mechanism's operating rhythm, and reducing the risk of uneven material supply or reduced pushing efficiency caused by the lag of the slide rod 407. In order to ensure that the material in the storage box 301 can be continuously supplied to the protective shell 303, the drive motor 402 is started. The drive motor 402 drives the rotating shaft 404 to rotate synchronously. The rotating shaft 404 is equipped with a cam 405, which rotates with the rotating shaft 404 and periodically applies compression to the slide rod 407 during the rotation. Under pressure, the slide bar 407 slides up and down along the vertical plate 406 under the squeezing action of the cam 405. During the movement, the slide bar 407 is connected to the push block 409. The push block 409 moves synchronously with the slide bar 407, thereby driving the push plate 410 to make reciprocating pushing motion. When the push plate 410 slides, it applies a pushing force to the material in the storage box 301, continuously pushing the material to the inclined surface of the push plate 410, so that the material enters the protective shell 303. With the continuous operation of the bucket conveyor belt 304, the material entering the protective shell 303 is stably transported to the discharge shell 305, and finally sent to the pulper body 2 for subsequent processing. The entire structure realizes the continuous pushing process of material from the storage box 301 to the protective shell 303 through the coordinated movement of the drive motor 402, the rotating shaft 404, the cam 405, the slide bar 407, the push block 409 and the push plate 410, ensuring the continuity and efficiency of the feeding operation, while reducing manual intervention.
[0030] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A pulper, comprising a base plate and a pulper body, characterized in that: The pulper body is fixedly connected to the base plate, and a feeding device is fixedly connected to the base plate. A pushing device is fixedly connected inside the feeding device. The feeding device includes a storage box, a protective shell is installed on one side of the storage box, a bucket conveyor belt is installed inside the protective shell, and a discharge shell is fixedly connected to the output port of the bucket conveyor belt, and the discharge shell is positioned corresponding to the feed port of the pulper body.
2. A pulper according to claim 1, characterized in that: The feeding device also includes a feeding hopper and a support frame. The feeding hopper is connected through the storage box, and the support frame is fixedly connected to the bottom of the protective shell and the bottom plate.
3. A pulper according to claim 1, characterized in that: The storage box is fixedly connected to one side of the protective shell, and a sealing gasket is provided at the connection between the two.
4. A pulper according to claim 1, characterized in that: The pushing device includes a connecting plate, a drive motor, and a vertical plate. The connecting plate is fixedly connected to the base plate. A mounting bracket is fixedly connected to the outside of the drive motor and to the base plate. A rotating shaft is rotatably connected inside the connecting plate. The output end of the drive motor is fixedly connected to the rotating shaft, which is rotatably connected inside the connecting plate. A cam is sleeved on the rotating shaft and rests on the base plate. The vertical plate is fixedly connected to one side of the connecting plate. A sliding rod is provided inside the vertical plate, and a return spring is sleeved on the sliding rod. A pushing block is fixedly connected to one end of the sliding rod, and a pushing plate is fixedly connected to one side of the pushing block.
5. A pulper according to claim 4, characterized in that: The push plate is slidably connected inside the storage box, and the slide rod and the vertical plate form a sliding connection.
6. A pulper according to claim 4, characterized in that: One end of the reset spring is fixedly connected to the outside of the vertical plate, and the other end of the reset spring is fixedly connected to the outside of the slide rod.
7. A pulper according to claim 4, characterized in that: The push plate is L-shaped, and its height is less than that of the storage bin.