A papermaking grinder based on the structure of the grinding disc and the grinder

Abstract

The utility model relates to the field of pulper, concretely relates to a grinding disc structure based on papermaking pulper, including main part and grinding disc part, is seted up with the mounting buckle groove on the main part, is seted up with the mounting hole on the grinding disc part, is provided with the buckle part at the mounting hole, the grinding disc part is detachable and is arranged on the main part through the buckle part and the mounting buckle groove cooperation, the grinding disc part still includes the grinding plate and the grinding tooth, the grinding plate is the sector plate, the grinding tooth is integrally arranged on the grinding plate upper surface, the utility model discloses the combination of modularization grinding disc part and buckle part has realized quick dismounting, only needs to replace the damaged grinding plate when damaging, does not need to replace the whole grinding disc, has reduced maintenance cost and time, the detachable characteristic is convenient for inspection, cleaning, improves maintenance efficiency, reduces downtime, improves production efficiency, especially suitable for the papermaking production line of continuous operation.

Description

Technical Field

[0001] This utility model belongs to the field of pulping machines, and specifically relates to a grinding disc structure based on a paper pulping machine. Background Technology

[0002] The paper refiner is an indispensable key piece of equipment in the papermaking industry. Its main function is to efficiently convert raw materials such as wood and bamboo into pulp to meet the needs of paper production. In this complex pulping process, the refiner disc, as the core component of the refiner, plays a crucial role. The rationality of the refiner disc's design and the quality of its structure directly affect not only the final pulp quality but also have a profound impact on production efficiency. Continuous technological innovation and optimization are being carried out in the design and manufacturing of refiner discs to improve the overall performance of the refiner and ensure higher output and higher quality pulp in the papermaking process.

[0003] In existing technologies, traditional grinding discs typically adopt an integral structure, i.e., a one-piece molded structure. This not only increases manufacturing costs, but also often requires replacing the entire grinding disc if some of the grinding teeth are damaged, which wastes resources and increases maintenance costs. In addition, the installation and disassembly process of traditional grinding discs is relatively complicated, making it inconvenient for daily maintenance and repair work. Therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be addressed. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects described in the background art, thereby realizing a grinding disc structure based on a paper mill, so as to solve the problems of the existing one-piece molded grinding disc where the grinding teeth need to be replaced when some grinding teeth are damaged, which wastes resources, increases maintenance costs, and is complicated in terms of installation and disassembly, and is inconvenient for daily maintenance and repair.

[0005] To achieve the above-mentioned utility model objectives, the technical solution of this utility model is: a grinding disc structure based on a paper mill, comprising a main body and a grinding disc, wherein the main body is provided with a mounting groove.

[0006] Specifically, the grinding disc is provided with a mounting hole, and a fastening part is provided at the mounting hole. The grinding disc is detachably mounted on the main body through the fastening part cooperating with the mounting groove.

[0007] In the above-mentioned grinding disc structure based on a paper mill, the grinding disc part further includes a grinding plate and grinding teeth. The grinding plate is a fan-shaped plate, and the grinding teeth are integrally disposed on the upper surface of the grinding plate.

[0008] Specifically, the grinding plate is located on the side of the main body, the mounting hole is opened on the grinding plate, and the mounting hole is aligned with the mounting groove of the main body.

[0009] In the above-mentioned grinding disc structure based on a paper mill, a locking block is provided at the bottom of the outer edge of the grinding plate, and a locking groove is provided on the outer edge of the main body corresponding to the locking block. The locking groove is adapted to the specifications of the locking block, and the outer edge of the grinding plate is detachably set at the locking groove through the locking block.

[0010] Specifically, the grinding plate is detachably mounted on the main body by means of the engagement of the locking block with the locking slot and the engagement of the fastening part with the mounting slot.

[0011] In the above-mentioned grinding disc structure based on a paper mill, the fastening part includes an upper positioning block, a lower positioning block, and a fastening block. The upper positioning block is disposed on the top of the lower positioning block, and the fastening block is disposed on the bottom of the lower positioning block. The upper positioning block and the lower positioning block are slidably disposed at the mounting hole, and the fastening block is slidably disposed at the mounting groove.

[0012] Preferably, a sealing plate is provided between the upper positioning block and the lower positioning block, and a matching limiting groove is provided on the grinding plate corresponding to the front and rear sides of the sealing plate, and the sealing plate is slidably disposed at the limiting groove.

[0013] Preferably, the upper positioning block, lower positioning block, fastening block, and closing plate are separate components, and are fixedly connected by countersunk bolts.

[0014] In the above-mentioned grinding disc structure based on a paper mill, a threaded hole is provided between the lower positioning block and the fastening block, and a screw is threadedly connected to the threaded hole. Screw holes are provided on the grinding plate at the corresponding positions on the front and rear sides of the threaded hole, and the screw is rotatably mounted at the screw hole through a bearing.

[0015] Furthermore, after the screw passes through the screw hole on the inner edge of the grinding plate, a finger wheel is provided at its end.

[0016] Preferably, the shift wheel is rotatably mounted on the end of the screw, and a nut-shaped protrusion is provided on the screw inside the shift wheel. A concave hole adapted to the specifications of the nut-shaped protrusion is provided on the inner wall of the shift wheel. A limiting sleeve is fitted on the screw between the shift wheel and the nut-shaped protrusion, and the limiting sleeve is made of an elastically deformable material.

[0017] Preferably, the grinding plates are integrated in one, two, or three groups. When the grinding plates are integrated in one or two groups, at least one fastening part is provided on the grinding plate. When the grinding plates are integrated in three groups, at least two fastening parts are provided on the grinding plate.

[0018] A pulping machine includes the aforementioned grinding disc structure based on a paper pulping machine.

[0019] Compared with the prior art, the grinding disc structure based on a paper mill of this utility model has at least the following beneficial effects: 1. This utility model relates to a grinding disc structure for a paper mill. The innovative design of this mill utilizes modular fastening mechanisms to achieve rapid assembly and disassembly between the grinding disc and the main body. This design allows for replacement of only the damaged grinding disc unit when a tooth on a grinding disc is damaged, rather than replacing the entire grinding disc structure, significantly reducing maintenance costs and time. Furthermore, its detachable nature enables maintenance personnel to perform inspections, cleaning, and necessary component replacements more quickly, further improving equipment maintenance efficiency. This not only reduces downtime but also increases production efficiency, which is particularly important for continuously operating paper production lines.

[0020] 2. This utility model ensures the stability of the connection between the grinding plate and the main body through the cooperation mechanism of the locking block and the locking groove. Simultaneously, the design of the sealing plate effectively prevents impurities such as pulp from entering the mounting holes and mounting grooves, avoiding problems such as poor sliding or accelerated wear caused by impurities. The design of the dial wheel combined with the nut-shaped protrusion and the limiting sleeve not only allows the operator to easily adjust the position of the locking block, but also prevents displacement of the locking block caused by the force of the pulp rotating the dial wheel during the grinding process, ensuring the stability and safety of the entire structure and enhancing the reliability and durability of the equipment under high-load working environments.

[0021] 3. The dial design allows users to precisely adjust the position of the locking block without the need for additional tools, thus facilitating the disassembly of the grinding disc and greatly simplifying the operation process and improving work efficiency. Overall, this series of design improvements significantly enhances the ease of operation and adaptability of the equipment, meeting the needs of production at different scales. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the grinding disc structure based on a paper mill of this utility model; Figure 2 This is a three-dimensional cross-sectional view of the grinding disc structure of the paper mill based on this utility model. Figure 3 This is a schematic diagram of the installation structure of the grinding disc part of the grinding disc structure based on the paper mill grinding machine of this utility model.

[0023] Figure 4 This is a three-dimensional cross-sectional view of the grinding disc structure of the grinding disc part of a paper mill based on this utility model. In the picture: 1-Main body: 101-Installation slot; 102-Card slot; 2-Grinding disc section: 201-Mounting hole; 202-Grinding plate; 203-Grinding teeth; 204-Clocking block; 205-Limiting groove; 3-Hook-fitting part: 301-Upper positioning block; 302-Lower positioning block; 303-Snap-fit ​​block; 304-Countersunk bolt; 305-Closed plate; 306-Screw; 307-Finger wheel; 308-Nut-shaped flange; 309-Limit sleeve. Detailed Implementation

[0024] The grinding disc structure of this utility model based on a paper mill will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0026] This embodiment discloses a grinding disc structure based on a paper mill refiner. By providing a fastening part to connect the split grinding disc part and the main body part, it solves the problems of existing one-piece grinding discs where damaged grinding teeth require replacement of the entire grinding disc, resulting in wasted resources, increased maintenance costs, complex installation and disassembly processes, and inconvenience for daily maintenance and repair. See below for details.

[0027] See Figure 1 , Figure 2 , Figure 3 It mainly includes a main body 1 and a grinding disc 2. The main body 1 has a mounting groove 101 and the grinding disc 2 has a mounting hole 201. A fastening part 3 is provided at the mounting hole 201. The grinding disc 2 can be detachably mounted on the main body 1 through the fastening part 3 cooperating with the mounting groove 101.

[0028] In this embodiment, the main body is the basic component of the grinding disc, and a mounting slot 101 is provided on it. The purpose of this slot is to cooperate with the fastening part 3 on the grinding disc part 2, thereby realizing quick assembly or disassembly of the two. The grinding disc part 2 is provided with a mounting hole 201 and a fastening part 3 located at the mounting hole. The grinding disc part can be detachably fixed to the main body part 1 through the fastening part 3.

[0029] By adopting a detachable design, when the grinding disc needs to be replaced or repaired, it is not necessary to replace the entire grinding device; only the damaged parts need to be replaced, which greatly reduces maintenance costs and time.

[0030] See Figure 1 , Figure 2 , Figure 4 The grinding disc part 2 further includes a grinding plate 202 and grinding teeth 203. The grinding plate 202 is a fan-shaped plate, and the grinding teeth 203 are integrally disposed on the upper surface of the grinding plate 202. The grinding plate 202 is located on the side of the main body part 1, and the mounting hole 201 is opened on the grinding plate 202. The mounting hole 201 is aligned with the mounting groove 101 of the main body part 1.

[0031] During assembly, the grinding disc 2 can be precisely aligned and fixed with the mounting slot 101 on the main body 1 through the fastening part 3 thereon, thereby ensuring the stability and reliability of the entire grinding disc structure.

[0032] To ensure the stability and connection strength of the grinding plate, see [reference needed]. Figure 2 , Figure 4 The grinding plate 202 has a locking block 204 at the bottom of its outer edge. The outer edge of the main body 1 has a slot 102 corresponding to the locking block 204. The slot 102 is compatible with the locking block 204. The outer edge of the grinding plate 202 is detachably mounted in the slot 102 via the locking block 204.

[0033] The locking block 204 is a key component, ensuring a secure connection between the grinding plate 202 and the main body 1. The locking groove 102 is provided corresponding to the locking block 204, and is located on the outer edge of the main body 1. The specifications of the locking groove are adapted to the locking block 204, thereby ensuring that the two can fit tightly together. Through the cooperation of the locking block 204 and the locking groove 102, and the cooperation of the fastening part 3 and the mounting groove 101, the grinding plate 202 is detachably mounted on the main body 1.

[0034] To achieve a detachable connection between the grinding plate and the main body via the fastening part, see [link to relevant documentation]. Figure 2 , Figure 4 The fastening part 3 includes an upper positioning block 301, a lower positioning block 302, and a fastening block 303. The upper positioning block 301 is disposed on the top of the lower positioning block 302, and the fastening block 303 is disposed on the bottom of the lower positioning block 302. The upper positioning block 301 and the lower positioning block 302 are slidably disposed at the mounting hole 201, and the fastening block 303 is slidably disposed at the mounting groove 101.

[0035] In this embodiment, the upper positioning block 301 and the lower positioning block 302 are slidably engaged with the mounting hole 201. Simultaneously, the lower positioning block 302 is connected to the fastening block 303. During use, the upper positioning block 301 and the lower positioning block 302 can be slidably moved to simultaneously slide the fastening block 303. The fastening block 303 is slidably positioned in the mounting groove 101 of the main body 1. When the fastening block 303 is fully embedded in the mounting groove 101, it provides the main fixing force, ensuring that the grinding disc 2 can be firmly attached to the main body 1.

[0036] To prevent pulp from entering the mounting holes and mounting slots, which could affect the sliding of the fastener blocks, please refer to [reference needed]. Figure 2 , Figure 4 A sealing plate 305 is provided between the upper positioning block 301 and the lower positioning block 302. The grinding plates 202 corresponding to the front and rear sides of the sealing plate 305 are provided with matching limiting grooves 205. The sealing plate 305 is slidably disposed at the limiting grooves.

[0037] In this embodiment, the sealing plate is mainly used to seal the sliding gaps between the front and rear sides of the upper and lower positioning blocks and the mounting holes, preventing impurities such as pulp from entering the mounting holes 201 and the mounting slots 101. To ensure that the sealing plate 305 can work stably and effectively, a limiting groove 205 is formed on the grinding plate 202 corresponding to the front and rear sides of the sealing plate 305. The limiting groove is adapted to the specifications of the sealing plate 305, allowing the sealing plate to slide within it while ensuring that its position is fixed and will not easily shift.

[0038] The design of the limiting groove 205 not only provides guidance for the closing plate, allowing it to slide smoothly into the correct position, but also restricts the upper and lower positioning blocks to prevent them from falling out of the mounting holes.

[0039] Meanwhile, in this embodiment, after the grinding disc is installed on the main body through the fastening part 3, centrifugal force is generated when the main body 1 rotates. Under the action of centrifugal force, the fastening block 303 can tightly abut against the mounting groove 101 to prevent the fastening block 303 from sliding, thereby ensuring that the fastening block will not detach from the mounting groove 101, and ultimately avoiding accidental separation of the grinding disc 2 from the main body. Example

[0040] The similarities to the above embodiments will not be repeated, the differences are as follows: See Figure 4 The upper positioning block 301, the lower positioning block 302, and the fastening block 303 are separately configured, and the upper positioning block 301, the lower positioning block 302, and the fastening block 303 are fixedly connected by countersunk bolts 304.

[0041] In this embodiment, the split design and the use of countersunk bolts for fixing simplify the installation and disassembly process of the entire fastening part at the mounting slot and mounting hole. When installation is required, simply place the fastening block 303, lower positioning block 302, closing plate 305 and upper positioning block 301 in sequence, and connect them with bolts to complete the assembly of the fastening part. Example

[0042] The similarities with the above embodiments and their combinations will not be repeated, the differences being: To facilitate adjustment of the position of the fastening block and further enhance its positioning accuracy, see [link to relevant documentation]. Figure 2 , Figure 4 A threaded hole is provided between the lower positioning block 302 and the fastening block 303. A screw 306 is threadedly connected to the threaded hole. Screw holes are provided on the grinding plate 202 at the corresponding positions on the front and rear sides of the threaded hole. The screw 306 is rotatably mounted at the screw hole through a bearing.

[0043] After the screw 306 passes through the screw hole on the inner edge of the grinding plate 202, a finger wheel 307 is provided at its end.

[0044] In this embodiment, a threaded hole is provided between the lower positioning block 302 and the fastening block 303. The position of the lower positioning block 302 and the fastening block 303 in the mounting hole and mounting groove can be adjusted by rotating the screw 306.

[0045] Meanwhile, to install the screw and ensure that the screw 306 can rotate smoothly without deviation, screw holes are made on the grinding plate 202 corresponding to the front and rear sides of the threaded hole, and bearings are installed in the screw holes. Through this structure, the screw 306 can be rotatably mounted on the grinding plate 202 via the bearings, ensuring its stability and smooth operation. A dial 307 is provided at the end of the screw 306. The dial 307 allows the operator to easily rotate the screw by hand to adjust the position of the locking block 303.

[0046] With the above structure, rotating the dial wheel 307 drives the screw 306 to rotate. Since the screw 306 is threadedly connected to the threaded hole formed between the lower positioning block 302 and the fastening block 303, rotating the screw 306 can drive the lower positioning block 302 and the fastening block 303 to slide synchronously in the mounting hole and mounting slot, thereby adjusting the position of the fastening block. This makes it easier to adjust the fastening block to the appropriate position and separate the grinding disc part from the main body.

[0047] The dial design makes operation simpler and more intuitive, allowing adjustments to be made without additional tools.

[0048] Meanwhile, the screw not only moves the locking block 303, but also, when the locking block 303 does not need to move, the threaded action between the screw and the threaded hole firmly locks the locking block in place, ensuring its positioning accuracy and stability. This design not only improves the quick-installation and quick-removal connection between the locking block 303 and the mounting slot, but also effectively enhances its reliability and durability in the working environment. Example

[0049] The similarities with the above embodiments and their combinations will not be repeated, the differences being: To prevent the finger roller from rotating under the action of the pulp during refining, which could cause displacement of the locking block, see [reference needed]. Figure 4 The shift wheel 307 is rotatably mounted on the end of the screw 306. A nut-shaped protrusion 308 is provided on the screw 306 inside the shift wheel 307. A concave hole adapted to the specifications of the nut-shaped protrusion 308 is opened on the inner wall of the shift wheel 307. A limiting sleeve 309 is sleeved on the screw 306 between the shift wheel 307 and the nut-shaped protrusion 308. The limiting sleeve 309 is made of elastically deformable material.

[0050] In this embodiment, the dial wheel 307 is designed to be rotatably mounted on the end of the screw 306. Under the force of the pulp, the dial wheel can rotate smoothly and freely without affecting the position of the screw 306 or the state of the locking block. When it is necessary to move the position of the locking block, align the concave hole of the dial wheel 307 with the nut-shaped protrusion 308, press the dial wheel against the nut-shaped protrusion 308, and then rotate the dial wheel to achieve transmission of the screw 306, that is, to move the locking block through the action of the thread. Through the physical locking mechanism (the cooperation between the concave hole and the nut-shaped protrusion), the rotation of the screw 306 under the action of the pulp can be effectively prevented, ensuring the relative fixation of the locking block position. Example

[0051] The similarities with the above embodiments and their combinations will not be repeated, the differences being: The grinding plates 202 are installed in one, two, or three groups. When the grinding plates 202 are installed in one or two groups, at least one fastening part 3 is provided on the grinding plate 202. When the grinding plates 202 are installed in three groups, at least two fastening parts 3 are provided on the grinding plate 202.

[0052] In this embodiment, the grinding plate 202 can be used individually (one per group), or it can be configured as an integrated unit of two or three. This flexibility allows the equipment to adjust the grinding area and pressure distribution according to actual needs, and to be flexibly adjusted according to production requirements, thereby improving the equipment's versatility and applicability.

[0053] Meanwhile, the modular design means that when the grinding teeth on a certain grinding plate are damaged, only the corresponding grinding plate unit needs to be replaced, without having to replace the entire grinding disc, thus reducing maintenance costs and time.

[0054] In addition, in this embodiment, a pulping machine is specifically proposed, which includes a grinding disc structure based on a paper pulping machine as described in any of the above embodiments or in combination thereof.

[0055] The working principle of the grinding disc structure based on the paper mill refining machine of this utility model: When the grinding disc needs to be replaced due to damage to the grinding teeth, align the concave hole of the finger wheel 307 on the grinding disc at the damaged part of the grinding teeth with the nut-shaped protrusion 308, then press the finger wheel 307 inward and rotate it to make the screw 306 rotate, which drives the locking block 303 to slide in the positioning locking groove, thereby separating it from the positioning locking groove.

[0056] After the fastening block 303 has completely moved out of the positioning slot, move the grinding plate so that the locking block 204 disengages from the slot 102, and the entire grinding disc and fastening part can be removed from the main body 1, thus completing the separation of the grinding disc and the main body.

[0057] It should be noted that, in actual implementation, the structure depicted in the accompanying drawings is not a fixed or unchanging embodiment. The components of the embodiments of this invention described and shown in these drawings can typically be arranged and designed in various different configurations. Furthermore, the accompanying drawings and abstract drawings are merely illustrative and do not represent the specific structure or actual quantity in a concrete implementation.

[0058] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The use of terms such as "a" or "an" in this specification and claims does not necessarily indicate a limitation on quantity. Terms such as "comprising" or "including" mean that the element or component preceding the word encompasses the element or component listed following the word and its equivalents, without excluding other elements or components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0059] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A papermaking refiner plate structure based on a plate structure of a papermaking refiner, comprising a body part and a plate part, characterized in that: The main body is provided with a mounting groove; The grinding disc is provided with a mounting hole and a fastening part is provided at the mounting hole. The grinding disc is detachably mounted on the main body through the fastening part cooperating with the mounting groove.

2. Papermaking mill based grinding stone structure according to claim 1, characterized in that: The grinding disc also includes a grinding plate and grinding teeth. The grinding plate is a fan-shaped plate, and the grinding teeth are integrally disposed on the upper surface of the grinding plate. The grinding plate is located on the side of the main body, and the mounting hole is opened on the grinding plate, which is aligned with the mounting groove of the main body.

3. Paper mill based grinding stone structure according to claim 2, characterized in that: A locking block is provided at the bottom of the outer edge of the grinding plate, and a slot is provided on the outer edge of the main body corresponding to the locking block. The slot is adapted to the specifications of the locking block, and the outer edge of the grinding plate is detachably set to the slot through the locking block. The grinding plate is detachably mounted on the main body by means of the engagement of the locking block with the locking groove and the engagement of the fastening part with the mounting groove.

4. The papermaking mill based grinding plate structure according to claim 3, characterized in that: The fastening part includes an upper positioning block, a lower positioning block, and a fastening block. The upper positioning block is disposed on the top of the lower positioning block, and the fastening block is disposed on the bottom of the lower positioning block. The upper positioning block and the lower positioning block are slidably disposed at the mounting hole, and the fastening block is slidably disposed at the mounting groove.

5. The papermaking mill based grinding plate structure according to claim 4, characterized in that: A sealing plate is provided between the upper positioning block and the lower positioning block. The grinding plates on the front and rear sides of the sealing plate are provided with matching limiting grooves. The sealing plate is slidably disposed at the limiting grooves.

6. The papermaking mill based grinding plate structure of claim 5, wherein: The upper positioning block, lower positioning block, fastening block, and closing plate are separate components, and are fixedly connected by countersunk bolts.

7. Paper mill based grinding disc structure according to any of claims 4-6, characterized in that: A threaded hole is provided between the lower positioning block and the fastening block, and a screw is threadedly connected to the threaded hole. Screw holes are provided on the grinding plates at corresponding positions on the front and rear sides of the threaded hole, and the screw is rotatably mounted at the screw hole through a bearing. After the screw passes through the screw hole on the inner edge of the grinding plate, a finger wheel is provided at its end.

8. Paper mill based grinding stone structure according to claim 7, characterized in that: The shift wheel is rotatably mounted on the end of the screw. A nut-shaped protrusion is provided on the screw inside the shift wheel. A concave hole adapted to the specifications of the nut-shaped protrusion is opened on the inner wall of the shift wheel. A limiting sleeve is fitted on the screw between the shift wheel and the nut-shaped protrusion. The limiting sleeve is made of elastically deformable material.

9. The papermaking mill based grinding pan structure of claim 2, wherein: The grinding plates are installed as a set of one, two, or three. When the grinding plates are installed as a set of one or two, at least one fastening part is provided on the grinding plate. When the grinding plates are installed as a set of three, at least two fastening parts are provided on the grinding plate.

10. A refiner characterized by: It includes a grinding disc structure based on a paper mill as described in any one of claims 1-9.

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