A paper stock refiner

Abstract

This utility model belongs to the technical field of pulping equipment, and particularly relates to a paper raw material pulping machine, including: a pulping tank, a fixed cover, a pulping disc, a power source, and a locking component; a pulping trough is provided on the top of the pulping tank, and a discharge pipe is provided at the bottom of the pulping trough, with a control valve on the discharge pipe; the fixed cover is detachably installed on the top of the pulping tank, forming a pulping chamber with the pulping trough, and a feeding port is provided on the fixed cover; the pulping disc is rotatably installed at the bottom of the fixed cover, and the bottom surface of the pulping disc cooperates with the bottom surface of the pulping trough to pulp the raw material, and a feeding hole is provided on the pulping disc, which connects with the feeding port when the pulping disc rotates to the feeding position; the power source can drive the pulping disc to rotate; the locking component can lock the pulping disc when it rotates to the feeding position; compared with the prior art, the pulping machine of this utility model has a simple structure, high feeding efficiency, and low manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of pulping equipment, and in particular relates to a paper raw material pulping machine. Background Technology

[0002] A paper pulper is a mechanical device used in the pulping process, primarily for processing fibrous raw materials such as wood, bamboo, and recycled paper into pulp suitable for papermaking. In the paper industry, to obtain high-quality paper, the raw materials must first be broken down into individual fibers; this process is called pulping.

[0003] Utility model patent CN223189493U discloses an environmentally friendly and energy-saving paper pulping machine, including a base, a load-bearing plate fixedly connected to the top of the base, a pulping tank fixedly connected to the middle of the top of the load-bearing plate, a support frame fixedly connected to the outer periphery of the top of the load-bearing plate, a lifting and rotating mechanism arranged inside the support frame, an adjusting mechanism arranged inside the pulping tank, and a pulper arranged on the top of the adjusting mechanism. The lifting and rotating mechanism includes a lifting component and a rotating component. The lifting component is arranged inside the support frame, and the rotating component is arranged at the bottom of the lifting component. The lifting component includes a first motor, which is fixedly connected to the top of the support frame. A threaded rod can drive the lifting frame to move the fixed frame downward, so that the fixed frame can drive the first pulping plate downward. A second motor drives the rotating shaft to rotate with the first pulping plate, so that the first pulping plate can pulp the paper raw materials inside the pulping tank. Although this technology can pulp paper raw materials well, it still has some defects:

[0004] (1). Each time raw materials are added to the grinding tank, the grinding disc needs to be raised by the lifting component to leave the grinding tank. After the raw materials are added, the grinding disc is lowered by the lifting component to enter the grinding tank and grind the raw materials. If grinding is performed repeatedly, this structure will result in low feeding efficiency, which will affect the grinding efficiency.

[0005] (2). The lifting components in this technology are large in size and have a complex structure, requiring various precision transmission structures to work together, which results in the high cost of the grinding machine and the high maintenance cost. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned technical problems by providing a paper raw material pulping machine that has a simple structure, high feeding efficiency, and low manufacturing cost.

[0007] In view of this, the present invention provides a paper raw material pulping machine, comprising:

[0008] The grinding tank has a grinding trough at the top and a discharge pipe at the bottom. The discharge pipe is equipped with a control valve to control whether the discharge pipe is open or closed.

[0009] A fixed cover is detachably installed on the top of the grinding tank. The fixed cover and the grinding tank form a grinding chamber. The fixed cover is provided with a feeding port that penetrates the upper and lower surfaces of the fixed cover.

[0010] The grinding disc is rotatably mounted at the bottom of the fixed cover. The bottom surface of the grinding disc cooperates with the bottom surface of the grinding tank to grind the raw materials. The grinding disc is provided with a feeding hole that runs through the upper and lower surfaces of the grinding disc. When the grinding disc is rotated to the feeding position, the feeding hole is connected to the feeding port.

[0011] The power source is mounted on the fixed cover and can drive the grinding disc to rotate.

[0012] The locking mechanism locks the grinding disc when it rotates to the feeding position.

[0013] In this technical solution, the end of the fixed cover closest to the grinding disc is installed on the grinding tank facing the grinding tank, forming a grinding chamber. When feeding is required, the discharge pipe is first cut off by the control valve, and then the grinding disc is rotated until feeding is complete. The control locking device locks the grinding disc, at which point the feeding hole and the feeding port are connected. Raw materials are fed into the feeding port, and the raw materials pass through the feeding port and feeding hole and enter the grinding chamber, completing the feeding process. After feeding is completed, the control locking device unlocks the grinding disc. At this time, the power source is started to drive the grinding disc to rotate. The bottom surface of the grinding disc cooperates with the bottom surface of the grinding tank to grind the raw materials. After grinding is completed, the power source is turned off, and the discharge pipe is opened by the control valve. The slurry in the grinding tank is discharged from the grinding chamber through the discharge pipe.

[0014] In the above technical solution, the grinding tank is further defined as a cylindrical tank with a bottom surface that is concave from all sides to the center. The discharge pipe is located at the center of the bottom surface of the grinding tank, and the bottom surface of the grinding disc is adapted to the bottom surface of the grinding tank.

[0015] In the above technical solution, the fixed cover is further provided with an annular groove, which is coaxially distributed with the grinding disc. A push block is slidably arranged in the annular groove along the circumferential direction. One end of the push block is connected to the grinding disc, and the other end of the push block extends out of the annular groove.

[0016] In the above technical solution, the locking component further includes:

[0017] Locking groove, the locking groove is set on the side wall of the grinding disc;

[0018] The sliding groove is set on the side wall of the grinding tank and penetrates through the side wall of the grinding tank. The sliding groove is positioned opposite to the locking groove.

[0019] A locking block is slidably set in a sliding groove, and one end of the locking block can be engaged in the locking groove;

[0020] The adjusting component can drive the locking block to engage or disengage from the locking slot.

[0021] In the above technical solution, the adjusting component further includes a mounting bracket and a screw. The mounting bracket is set on the outer wall of the grinding tank and has an adjusting screw hole. The threaded end of the screw is threadedly connected to the adjusting screw hole, and one end of the screw is rotatably connected to the locking block.

[0022] In the above technical solution, the top of the grinding tank is provided with a mounting screw hole, and the fixed cover is provided with a mounting through hole. The mounting through hole penetrates the upper and lower surfaces of the fixed cover. The threaded fastener, the mounting through hole, and the mounting screw hole cooperate to fix the fixed cover to the grinding tank.

[0023] The beneficial effects of this utility model are:

[0024] 1. By setting a rotatable grinding disc and a fixed feeding port, feeding can be done simply by rotating the grinding disc to align the feeding hole with the feeding port, eliminating the need to raise or lower the grinding disc and greatly improving feeding efficiency. In addition, the complex lifting mechanism is eliminated, simplifying the overall structure and reducing manufacturing costs and maintenance difficulty.

[0025] 2. The locking mechanism allows for locking and unlocking of the grinding disc at the feeding position, ensuring stability during the feeding process.

[0026] 3. The annular groove and push block design provide a simple way to manually rotate the grinding disc, making it easy to quickly position the grinding disc for feeding. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the top of the pulping machine of this utility model.

[0029] Figure 2 This is a three-dimensional structural diagram of the bottom of the pulping machine of this utility model.

[0030] Figure 3 This is a three-dimensional cross-sectional view of the pulping machine of this utility model.

[0031] Figure 4 This is a three-dimensional structural diagram of the grinding tank in this utility model.

[0032] Figure 5This is a schematic diagram of the middle cross-sectional structure of the grinding tank in this utility model.

[0033] Figure 6 This is a three-dimensional structural diagram of the top of the fixed cover and grinding disc in this utility model.

[0034] Figure 7 This is a side view of the fixed cover and grinding disc in this utility model.

[0035] The markings in the diagram are as follows:

[0036] 1. Pulping tank; 101. Pulping trough; 102. Discharge pipe; 103. Control valve; 2. Fixed cover; 201. Feeding port; 3. Pulping disc; 301. Feeding hole; 4. Power source; 5. Locking component; 501. Locking groove; 502. Sliding groove; 503. Locking block; 504. Mounting bracket; 5041. Adjusting screw hole; 505. Screw; 6. Annular groove; 7. Push block; 8. Mounting screw hole; 9. Mounting through hole; 10. Threaded fastener. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] Example 1

[0040] like Figures 1-7 As shown, this embodiment provides a paper raw material refiner, including: a refiner tank 1, a fixed cover 2, a refiner disc 3, a power source 4, and a locking component 5;

[0041] Please see Figure 4 and Figure 5 The grinding tank 1 has support legs at its bottom and a grinding trough 101 at its top. Specifically, the grinding trough 101 is a cylindrical trough with its bottom surface concave from all sides to the center, which facilitates the collection of slurry towards the center. A discharge pipe 102 is located at the bottom of the grinding trough 101, positioned at the center of the bottom surface of the grinding trough 101, to facilitate complete discharge of slurry and reduce residue. In this embodiment, a negative pressure pump can also be connected to the end of the discharge pipe 102 to improve discharge efficiency. Please refer to [link to relevant documentation]. Figure 2 The discharge pipe 102 is equipped with a control valve 103 to control the opening or closing of the discharge pipe 102. For example, the control valve 103 can be a butterfly valve.

[0042] Please see Figure 1 and Figure 3 The fixed cover 2 is detachably set on the top of the grinding tank 1. When the fixed cover 2 is connected to the grinding tank 1, the fixed cover 2 and the grinding tank 101 form a closed grinding chamber. Any way that can seal and detachably connect two objects in the prior art can be used as the connection method between the fixed cover 2 and the grinding tank 1 in this embodiment.

[0043] The grinding disc 3 is rotatably mounted at the bottom of the fixed cover 2 via bearings or bushings. The bottom surface of the grinding disc 3 mates with the bottom surface of the grinding tank 101 to grind the raw materials. For details, please refer to [link to relevant documentation]. Figure 3 and Figure 7 The bottom surface of the grinding disc 3 is adapted to the bottom surface of the grinding tank 101 to ensure uniform grinding effect;

[0044] Please see Figure 3 The fixed cover 2 is provided with a feeding port 201 that penetrates the upper and lower surfaces of the fixed cover 2; the grinding disc 3 is provided with a feeding hole 301 that penetrates the upper and lower surfaces of the grinding disc 3. When the grinding disc 3 rotates to the feeding position, the feeding hole 301 is connected to the feeding port 201. It should be noted that the feeding hole 301 is a hole on the grinding disc 3 located in a fixed position. The feeding hole 301 will move with the rotation of the grinding disc 3. Therefore, the feeding hole 301 and the feeding port 201 are not connected during the grinding process.

[0045] Please see Figure 1 The power source 4 is set on the fixed cover 2. The power source 4 can drive the grinding disc 3 to rotate. In this embodiment, the power source 4 can be a motor that can precisely control the rotation angle, such as a servo motor. The grinding disc 3 is equipped with a main shaft. The output shaft of the power source 4 is connected to the main shaft through a coupling, thereby driving the grinding disc 3 to rotate.

[0046] Please see Figure 1 and Figure 2The locking element 5 is set on the outer wall of the grinding tank 1. The locking element 5 can lock the grinding disc 3 when it rotates to the feeding position. Of course, the locking element 5 can also unlock the grinding disc 3. Any structure in the prior art that can lock and unlock the grinding disc 3 at the current position can be used as the locking element 5 in this embodiment.

[0047] In this embodiment, the fixed cover 2 is installed on the grinding tank 1 with one end near the grinding disc 3 facing the grinding tank 101 to form a grinding chamber. When feeding is required, the discharge pipe 102 is first cut off by the control valve 103, and then the grinding disc 3 is rotated until feeding is completed. The control locking member 5 locks the grinding disc 3. At this time, the feeding hole 301 is connected to the feeding port 201. Raw materials are fed into the feeding port 201. The raw materials pass through the feeding port 201 and the feeding hole 301 and enter the grinding chamber to complete the feeding process. After feeding is completed, the control locking member 5 unlocks the grinding disc 3. At this time, the power source 4 is started to drive the grinding disc 3 to rotate. The bottom surface of the grinding disc 3 cooperates with the bottom surface of the grinding tank 101 to grind the raw materials. After grinding is completed, the power source 4 is turned off, and the discharge pipe 102 is opened by the control valve 103. The slurry in the grinding tank 101 is discharged from the grinding chamber through the discharge pipe 102.

[0048] Example 2

[0049] Based on Example 1, this embodiment further improves the connection structure between the fixed cover 2 and the grinding disc 3;

[0050] Please see Figure 1 The fixed cover 2 includes a plate with a through groove in the middle and a disc located at the center of the through groove. The disc has a hole in the middle for the main shaft to pass through. The plate and the disc are welded together by two U-shaped brackets, forming an annular groove 6 between the plate and the disc. The annular groove 6 is coaxially distributed with the grinding disc 3, and a pusher 7 is slidably disposed in the annular groove 6 along the circumferential direction. Please refer to Figure 3 One end of the push block 7 is connected to the grinding disc 3, and the other end of the push block 7 extends out of the annular groove 6. The worker can apply force to the push block 7 to make the push block 7 move in the annular groove 6 along the circumferential direction, thereby driving the grinding disc 3 to rotate.

[0051] In this embodiment, the power source 4 can be a motor whose output shaft can rotate freely after power failure, such as a stepper motor. When feeding is required, the power source 4 is first de-energized, and then the worker drives the grinding disc 3 to rotate through the push block 7, so that the grinding disc 3 can quickly rotate to the feeding position, thereby improving the feeding efficiency.

[0052] Example 3

[0053] Based on Embodiment 1, this embodiment also discloses a structure of the locking member 5;

[0054] In this embodiment, the locking component 5 includes: a locking groove 501, a sliding groove 502, a locking block 503, and an adjusting component;

[0055] Please see Figure 3 and Figure 6 The locking groove 501 is provided on the side wall of the grinding disc 3;

[0056] Please see Figure 3 , Figure 4 as well as Figure 5 The sliding groove 502 is provided on the side wall of the grinding tank 101 and penetrates the side wall of the grinding tank 101. When the grinding disc 3 is in the feeding position, the sliding groove 502 and the locking groove 501 are opposite to each other.

[0057] Please see Figure 3 The locking block 503 is slidably connected in the sliding groove 502 along the radial direction of the grinding disc 3. One end of the locking block 503 can be inserted into the locking groove 501. When the locking block 503 is inserted into the locking groove 501, it can restrict the rotation of the grinding disc 3. When the locking block 503 is removed from the locking groove 501, the grinding disc 3 can rotate.

[0058] The adjusting component can drive the locking block 503 to engage or disengage from the locking slot 501. Any structure in the prior art that can drive the locking block 503 to move linearly back and forth can be used as the adjusting component in this embodiment.

[0059] The locking component 5 in this embodiment has a simple structure and achieves reliable locking of the grinding disc 3;

[0060] Example 4

[0061] Based on Embodiment 3, this embodiment also discloses a structure of the adjusting component;

[0062] In this embodiment, the adjusting component includes a mounting bracket 504 and a screw 505. Please refer to [link / reference]. Figure 4 The mounting bracket 504 is installed on the outer wall of the grinding tank 1, and the mounting bracket 504 is provided with an adjusting screw hole 5041. Please refer to [link / reference]. Figure 3 The threaded end of the screw 505 is threadedly connected to the adjusting screw hole 5041, and one end of the screw 505 is rotatably connected to the locking block 503.

[0063] In this embodiment, the worker can use tools or manually rotate the screw 505. During the rotation of the screw 505, the locking block 503 can be driven to move closer to or away from the locking groove 501, thereby locking or unlocking the grinding disc 3.

[0064] Example 5

[0065] Based on Embodiment 1, this embodiment also discloses a connection method between the fixed cover 2 and the grinding tank 1;

[0066] In this embodiment, the fixed cover 2 and the grinding tank 1 are connected by a threaded fastener 10. Please refer to [link / reference]. Figure 4 The top of the grinding tank 1 is provided with mounting screw holes 8, please refer to [reference needed]. Figure 6 The fixed cover 2 is provided with an installation through hole 9, which penetrates the upper and lower surfaces of the fixed cover 2. The threaded end of the threaded fastener 10, such as a bolt, passes through the installation through hole 9 and engages with the installation screw hole 8 to fix the fixed cover 2 to the grinding bucket 1.

[0067] For example, mounting screw holes 8 are provided at the four corners of the top of the grinding tank 1, and mounting through holes 9 are provided at the four corners of the fixed cover 2. Each mounting through hole 9 is opposite to a mounting screw hole 8. The fixed cover 2 and the grinding tank 1 are connected by four sets of threaded fasteners 10.

[0068] In this embodiment, the fixed cover 2 and the grinding tank 1 are connected by a threaded connection, which is convenient to assemble and disassemble, simple and reliable, and has high connection strength.

[0069] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A paper stock refiner characterized in that, include: A grinding tank (1) is provided with a grinding trough (101) at the top and a discharge pipe (102) at the bottom of the grinding trough (101). A control valve (103) is provided on the discharge pipe (102) to control the opening or closing of the discharge pipe (102). A fixed cover (2) is detachably mounted on the top of the grinding tank (1). The fixed cover (2) and the grinding tank (101) form a grinding chamber. A feeding port (201) is provided on the fixed cover (2) through the upper and lower surfaces of the fixed cover (2). A grinding disc (3) is rotatably disposed at the bottom of the fixed cover (2). The bottom surface of the grinding disc (3) cooperates with the bottom surface of the grinding tank (101) to grind the raw materials. The grinding disc (3) is provided with a feeding hole (301) that penetrates the upper and lower surfaces of the grinding disc (3). When the grinding disc (3) is rotated to the feeding position, the feeding hole (301) communicates with the feeding port (201). Power source (4), which can drive the grinding disc (3) to rotate; Locking element (5) is capable of locking the grinding disc (3) when the grinding disc (3) is rotated to the feeding position.

2. A paper stock refiner according to claim 1, characterized in that: The grinding tank (101) is a cylindrical tank. The bottom surface of the grinding tank (101) is concave from all sides to the center. The discharge pipe (102) is located at the center of the bottom surface of the grinding tank (101). The bottom surface of the grinding disc (3) is adapted to the bottom surface of the grinding tank (101).

3. A paper stock refiner as claimed in claim 1, characterized in that: The fixed cover (2) is provided with an annular groove (6), which is coaxially distributed with the grinding disc (3). A push block (7) is slidably arranged in the annular groove (6) along the circumferential direction. One end of the push block (7) is connected to the grinding disc (3), and the other end of the push block (7) extends out of the annular groove (6).

4. A paper stock refiner according to claim 1, characterized in that: The locking element (5) includes: Locking groove (501), the locking groove (501) is provided on the side wall of the grinding disc (3); A sliding groove (502) is provided on the side wall of the grinding tank (101), the sliding groove (502) penetrates the side wall of the grinding tank (101), and the sliding groove (502) is opposite to the locking groove (501). A locking block (503) is slidably disposed in the sliding groove (502), and one end of the locking block (503) can be engaged in the locking groove (501); An adjusting member that can drive the locking block (503) to engage or disengage from the locking slot (501).

5. A paper stock refiner as claimed in claim 4, characterized in that: The adjusting component includes a mounting bracket (504) and a screw (505). The mounting bracket (504) is disposed on the outer wall of the grinding tank (1). The mounting bracket (504) is provided with an adjusting screw hole (5041). The threaded end of the screw (505) is threadedly connected to the adjusting screw hole (5041). One end of the screw (505) is rotatably connected to the locking block (503).

6. The paper stock refiner of claim 1, wherein: The top of the grinding tank (1) is provided with a mounting screw hole (8), and the fixed cover (2) is provided with a mounting through hole (9). The mounting through hole (9) penetrates the upper and lower surfaces of the fixed cover (2). The threaded fastener (10), the mounting through hole (9) and the mounting screw hole (8) cooperate to fix the fixed cover (2) to the grinding tank (1).

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