Raw material processing equipment for extracting shaving board from different raw materials

Abstract

The invention provides raw material processing equipment for producing shaving boards by extracting different raw materials, which comprises a crushing box, a linkage auxiliary sheet discharging mechanism is arranged in the crushing box, the linkage auxiliary sheet discharging mechanism comprises a crushing barrel arranged in the crushing box, a plurality of sheet falling notches are formed in the outer arc surface of the crushing barrel, and a shaft sleeve is rotationally arranged in the crushing box; the number of the shaft sleeves is two, the two shaft sleeves are rotationally arranged on the left side and the right side of the interior of the crushing box, the outer sides of the shaft sleeves are provided with brush plates, and the brush plates are located between the outer arc surfaces of the shaft sleeves on the two sides. The elastic scraping plate or the brush body is tightly attached to the inner wall of the smashing barrel to rotate, wood chips clamped in the chip falling groove opening are removed in real time, blocking is prevented, smashing and self-cleaning integration is achieved, smooth discharging is guaranteed, continuity is improved, energy consumption increase and uneven particle size are avoided, the stable quality of raw materials is guaranteed, and cost and safety risks are reduced.

Description

Technical Field

[0001] This invention belongs to the field of particleboard production technology, and specifically relates to a raw material processing equipment for particleboard production that utilizes different raw materials. Background Technology

[0002] Particleboard is a type of engineered wood product made from lignocellulosic materials such as wood, bamboo, straw, waste furniture, or recycled particleboard. The process involves crushing the material into shavings, drying, applying adhesives, laying them into shape, and then hot-pressing and curing them. It is widely used in furniture manufacturing, interior decoration, and packaging. In the raw material pretreatment stage, existing processing equipment typically uses a pair of rotating crushing rollers with high-speed pulverizing blades to shear and impact the raw material, refining it into flake-like shavings suitable for subsequent board production. To control the output particle size, the bottom of the crushing chamber is often equipped with a screening crushing drum with a shavings drop slot, allowing only shavings of the correct size to fall through the slot.

[0003] However, due to the elasticity and fiber toughness of wood itself, especially when processing waste particleboard containing glue, moisture, or with a dense structure, the shredded wood chips are very prone to getting stuck on the edges, corners, or gaps of the chip slot due to deformation. If not removed in time, they will quickly accumulate and form local blockages or even complete blockages. This not only prevents qualified wood chips from being discharged smoothly, causing material accumulation in the cavity and a sharp drop in shredding efficiency, but also causes malfunctions such as overheating, tripping, or even blade breakage due to a sudden increase in motor load. At this time, the operator has to stop the machine in an emergency and use tools such as iron hooks and crowbars to manually clear the stuck material from the narrow maintenance opening. This not only seriously interrupts the continuous production process and reduces the overall efficiency of the equipment, but also aggravates mechanical wear due to frequent start-ups and shutdowns, and brings safety risks such as pinching and slipping when working at height or in confined spaces. Summary of the Invention

[0004] In view of this, the present invention addresses the shortcomings of the prior art by providing a raw material processing device for particleboard production that extracts materials from different raw materials. A follow-up brush mechanism is integrated on the crushing roller drive shaft. The elastic scraper or brush rotates close to the inner wall of the crushing barrel to remove wood chips stuck in the chip slot in real time, preventing blockage. This achieves integrated crushing and self-cleaning, ensuring smooth material discharge, improving continuity and automation, avoiding increased energy consumption and uneven particle size, ensuring stable raw material quality, and reducing operation and maintenance costs and safety risks.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a raw material processing equipment for extracting particleboard from different raw materials, including a crushing box, a linkage auxiliary particle ejection mechanism is provided inside the crushing box, the linkage auxiliary particle ejection mechanism includes a crushing barrel disposed inside the crushing box, the outer arc surface of the crushing barrel has multiple particle dropping slots, two bushings are rotatably disposed inside the crushing box, the two bushings are rotatably disposed on the left and right sides inside the crushing box, a brush plate is disposed on the outer side of the bushing, the brush plate is located between the outer arc surfaces of the two bushings, a linkage drive assembly is disposed on the right side of the crushing box, the linkage drive assembly can drive the brush plate to rotate around the crushing barrel as the center to brush away the wood chips stuck in the particle dropping slots, and a crushing mechanism is also provided inside the crushing box, the crushing mechanism including a rotatably disposed inside the crushing box. Two crushing rollers are provided, each with a sprocket at its right end. An auxiliary sprocket is also rotatably mounted on the right side of the crushing box via a rotating column. The sprocket and the auxiliary sprocket are connected by a chain drive. A first drive unit is provided on the left side of the crushing box to drive the two crushing rollers to crush the wood. The first drive unit includes a first motor located on the left side of the crushing box. The output shaft of the first motor is connected to the left end of the last crushing roller located on the far side via a coupling. The linkage drive assembly includes a sliding guide column located on the right side of the crushing box. A rack plate is slidably mounted on the outer arc surface of the sliding guide column. A gear is fixedly mounted on the outer arc surface of the bushing located on the right side. The gear meshes with the rack plate. A slide groove frame is provided on the upper side of the rack plate. A slide column frame is provided on the right end of the rotating column. The slide column of the slide column frame is slidably connected to the inside of the slide groove frame.

[0006] As a further improvement of the present invention, a crushing mechanism is rotatably arranged inside the bushings. The crushing mechanism includes a rotating column rotatably arranged between the two bushings. Multiple uniformly distributed crushing blades are arranged on the outer arc surface of the rotating column. A second drive unit is arranged on the left side of the crushing box to drive the crushing blades to rotate and crush the wood chips. The second drive unit includes a left protective shell arranged on the left side of the crushing box. A second motor is arranged on the left side of the left protective shell. The output shaft of the second motor passes through the interior of the left protective shell through a coupling and is connected to the left end of the rotating column.

[0007] As a further improvement of the present invention, a right protective shell is provided on the right side of the crushing box, and the chain, sprocket, auxiliary sprocket, linkage drive assembly and vibration drive unit are all located inside the right protective shell.

[0008] As a further improvement of the present invention, a material guiding unit is provided on the upper side of the inside of the crushing box. The material guiding unit includes a material guiding plate disposed on the upper side of the crushing box. The crushing box and the material guiding plate are fixed together by welding. The material guiding plate is installed in conjunction with two crushing rollers.

[0009] As a further improvement of the present invention, a vibrating screening mechanism is provided on the inner wall of the crushing box. The vibrating screening mechanism includes multiple mounting plates provided on the inner wall of the crushing box. Each mounting plate has a vibrating guide column on its upper side. A screening plate is slidably arranged between the outer arc surfaces of the multiple vibrating guide columns. Multiple springs are arranged between the multiple mounting plates and the screening plate. The multiple springs are respectively sleeved on the outer arc surfaces of the corresponding vibrating guide columns. A vibration driving unit is provided on the outer arc surface of the rotating column. The vibration driving unit includes cams fixedly sleeved on the outer arc surfaces of the two rotating columns. Right-angle connecting plates are provided on the left and right sides of the screening plate. Both sides of the crushing box are provided with clearance slots adapted to the right-angle connecting plates. A roller frame is provided on the upper side of each right-angle connecting plate. Multiple cams are respectively installed in cooperation with adjacent roller frames.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, by starting the first motor to drive the rear crushing roller and sprocket, and then linking the chain and auxiliary sprocket to the front crushing roller, the double rollers rotate. After the wood or waste particleboard is put into the crushing box, it is precisely guided to the gap between the two rollers by the guide plates on both sides. Under the shearing and squeezing action of the toothed structure of the roller surface, it is efficiently torn into uniform blocks. This not only ensures that the material is subjected to uniform force, has high crushing efficiency and controllable particle size, but also that the guide plates effectively prevent material splashing or deviation, improving the stability of feeding. At the same time, the single motor + chain drive is used, which has a compact structure, reliable power transmission and simple maintenance. It is especially suitable for pre-crushing waste particleboard or logs.

[0011] Secondly, after the torn wood or waste particleboard falls into the crushing bin, the second motor drives the high-speed crushing blades on the rotating column to perform secondary fine crushing, efficiently breaking it into flake-shaped shavings that meet the requirements of particleboard production processes. These shavings are then screened out through the shavings discharge slot, thus achieving unified and refined processing of various raw materials such as wood and waste board. This two-stage crushing structure first coarsely crushes and then finely crushes, which not only reduces the single-stage crushing load and extends the blade life, but also ensures uniform particle size of the output, making it suitable for subsequent gluing and laying processes. This significantly improves the adaptability of raw materials and processing efficiency, providing stable and high-quality fiber raw materials for particleboard production lines, while also enhancing the equipment's ability to utilize waste wood materials from different sources.

[0012] Thirdly, as the rotating column on the auxiliary sprocket rotates, the combined motion of the slide frame and the slide column drives the rack plate to move up and down reciprocally under the constraint of the guide column. This, in turn, drives the gears and bushings meshing with it to periodically rotate in both directions, causing the brush plate to swing back and forth around the crushing barrel as the center for cleaning. This continuously and actively scrapes away the wood chips stuck in the chip slot and pushes them into the discharge channel. This mechanism cleverly utilizes the existing transmission system to achieve a self-cleaning function without additional power, effectively preventing slot blockage, avoiding manual cleaning during downtime, ensuring continuous and stable operation of the crushing process, while improving the uniformity of output and reducing energy consumption and equipment wear.

[0013] Fourth, the crushed wood chips and those removed by the brush plate fall onto the screening plate located at the bottom of the crushing box. At this time, the rotating column driven by the second motor synchronously drives the cam on it to rotate continuously. When the cam's protrusion rotates to contact the roller on the roller frame, the thrust is transmitted to the right-angle connecting plates on both sides through the roller, forcing the screening plate to overcome the spring resistance and move downward, so that the spring is in a compressed state. When the cam continues to rotate and the protrusion disengages from the roller, the spring quickly rebounds, pushing the screening plate back to its initial height. This cycle repeats, and the screening plate forms a stable and continuous up-and-down vibration in the vertical direction, effectively screening the wood chips dynamically: qualified fine wood chips with a size smaller than the screen slot diameter of the screening plate quickly pass through the screen holes under the action of vibration and are discharged from the bottom of the crushing box to enter the subsequent conveying or storage system; while coarse pieces that are too large cannot pass through the screen holes and, guided by the tilt angle of the screening plate, automatically slide down to the discharge port on the other side under the combined action of gravity and vibration, realizing the automatic diversion and recycling of coarse and fine materials for further crushing. Crucially, the cam and rollers use a rolling contact (i.e., the rollers roll on the cam surface instead of sliding friction), which greatly reduces frictional resistance and wear between moving parts. This not only reduces transmission energy consumption but also significantly improves the smoothness of operation, response sensitivity, and long-term reliability of the mechanism. No additional power source is required. The mechanism cleverly utilizes the rotation of the main shaft to achieve self-excited vibration, which ensures the uniformity of the particle size of the wood shavings and the adaptability to the process, while avoiding screen clogging and manual cleaning.

[0014] Fifth, by setting up a right protective shell, key transmission and moving parts such as chains, sprockets, auxiliary sprockets, linkage drive components, and vibration drive units can be completely enclosed and protected. This effectively prevents operators from accidentally touching the equipment and causing safety accidents such as pinching or entanglement. At the same time, it blocks external dust, wood chips, moisture, and other contaminants from entering the transmission system, avoiding problems such as accelerated chain wear, sprocket jamming, bearing corrosion, or cam mechanism failure caused by impurities. The protective design not only significantly improves the operational safety and reliability of the equipment, but also reduces maintenance frequency and lubrication losses, and extends the service life of core components. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the crushing chamber and the right protective shell of the present invention. Figure 3 For the present invention Figure 2 A magnified structural diagram at point A; Figure 4 This is a schematic diagram of the front cross-sectional structure of the crushing box of the present invention; Figure 5 This is a schematic diagram of the left-side cross-sectional structure of the crushing box of the present invention.

[0017] In the diagram: 101, crushing box; 102, guide plate; 103, right protective shell; 104, left protective shell; 201, crushing roller; 202, first motor; 203, sprocket; 204, chain; 205, sliding guide column; 206, rack plate; 207, chute frame; 208, bushing; 209, gear; 210, brush plate; 211, sliding column frame; 301, second motor; 302, crushing barrel; 303, rotating column; 304, crushing blade; 401, screening plate; 402, right-angle connecting plate; 403, cam; 404, roller frame; 405, mounting plate; 406, spring; 407, vibrating guide column. Detailed Implementation

[0018] To better understand the present invention, the following embodiments further illustrate the content of the invention, but the scope of protection of the present invention is not limited to the following embodiments. Numerous specific details are set forth in the following description to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details.

[0019] like Figure 1 , 2As shown in Figures 3, 4, and 5, a raw material processing device for extracting wood chips from different raw materials includes a crushing box 101. The crushing box 101 is equipped with a linkage auxiliary chip removal mechanism, which includes a crushing barrel 302 disposed inside the crushing box. Multiple chip dropping slots are formed on the outer arc surface of the crushing barrel 302. A bushing 208 rotatably rotates inside the crushing box 101, and a brush plate 210 is disposed on the outer side of the bushing 208. A linkage drive assembly is disposed on the right side of the crushing box 101, which drives the brush plate 210 to rotate around the crushing barrel 302 to brush away wood chips stuck in the chip dropping slots. The crushing box 101 also contains a crushing mechanism, which includes two rotatably disposed inside the crushing box 101. Each crushing roller 201 has a sprocket 203 at its right end. An auxiliary sprocket is also rotatably mounted on the right side of the crushing box 101 via a rotating column. The sprocket 203 and the auxiliary sprocket are connected by a chain 204. A first drive unit is provided on the left side of the crushing box 101 to drive the two crushing rollers 201 to rotate and crush the wood. The first drive unit includes a first motor 202 located on the left side of the crushing box 101. The output shaft of the first motor 202 is connected to the left end of the last crushing roller 201 via a coupling. A material guiding unit is provided on the upper side of the interior of the crushing box 101. The material guiding unit includes a material guiding plate 102 located on the upper side of the crushing box 101. The material guiding plate 102 is installed in conjunction with the two crushing rollers 201.

[0020] By starting the first motor 202, the output shaft drives the rear crushing roller 201 and the rear sprocket 203 to rotate. Then, with the assistance of the auxiliary sprocket, the chain 204 drives the crushing roller 201 on the front sprocket 203 to rotate. Then, the required wood or waste particleboard is added into the crushing box 101. The wood or waste particleboard is guided by the two guide plates 102 to the space between the two crushing rollers 201. The crushing rollers 201 tear the wood or waste particleboard into pieces.

[0021] like Figure 2 , 4 As shown in Figure 5, a crushing mechanism is rotatably arranged inside the bushing 208. The crushing mechanism includes a rotating column 303 rotatably arranged between the two bushings 208. Multiple uniformly distributed crushing blades 304 are arranged on the outer arc surface of the rotating column 303. A second drive unit is arranged on the left side of the crushing box 101, which can drive the crushing blades 304 to rotate and crush the wood chips. The second drive unit includes a left protective shell 104 arranged on the left side of the crushing box 101. A second motor 301 is arranged on the left side of the left protective shell 104. The output shaft of the second motor 301 passes through the interior of the left protective shell 104 through a coupling and is connected to the left end of the rotating column 303.

[0022] The torn pieces of wood or waste particleboard fall into the crushing barrel 302. Then, the second motor 301 is started and runs. The output shaft drives the crushing blades 304 on the rotating column 303 to rotate and crush the wood into wood chips that fall from the chip slot. This process crushes the wood or waste particleboard into chips, enabling the extraction of particleboard raw materials from various materials.

[0023] like Figure 2 , 3 As shown in Figure 4, the linkage drive assembly includes a sliding guide post 205 disposed on the right side of the crushing box 101. A rack plate 206 is slidably disposed on the outer arc surface of the sliding guide post 205. A gear 209 is fixedly sleeved on the outer arc surface of the bushing 208 located on the right side. The gear 209 is meshed with the rack plate 206. A slide groove frame 207 is disposed on the upper side of the rack plate 206. A slide column frame 211 is disposed on the right end of the rotating post. The slide column of the slide column frame 211 is slidably connected to the inside of the slide groove frame 207.

[0024] As the rotating column on the auxiliary sprocket rotates, it drives the sliding column on the slide frame 207 to both rotate and slide inside the slide frame 207. This causes the rack plate 206 to move up and down reciprocally under the restriction of the sliding guide column 205, causing the bushing 208 on the gear 209 that meshes with it to rotate. This, in turn, causes the brush plate 210 to rotate back and forth around the crushing barrel 302 as the center, brushing away the wood chips stuck in the chip slot.

[0025] like Figure 1 , 2 As shown in Figures 4 and 5, a vibrating screening mechanism is provided on the inner wall of the crushing box 101. The vibrating screening mechanism includes multiple mounting plates 405 disposed on the inner wall of the crushing box 101. Each mounting plate 405 has a vibrating guide column 407 on its upper side. A screening plate 401 is slidably disposed between the outer arc surfaces of the multiple vibrating guide columns 407. Multiple springs 406 are disposed between the multiple mounting plates 405 and the screening plate 401. The multiple springs 406 are respectively sleeved on the corresponding vibrating guide columns 407. On the outer arc surface of the 7th rotating column 303, a vibration drive unit is provided. The vibration drive unit includes a cam 403 fixedly sleeved on the outer arc surface of the two rotating columns 303. Right angle connecting plates 402 are provided on the left and right sides of the screening plate 401. The left and right sides of the crushing box 101 are provided with clearance slots that are adapted to the right angle connecting plates 402. A roller frame 404 is provided on the upper side of each right angle connecting plate 402. Multiple cams 403 are respectively engaged with adjacent roller frames 404.

[0026] After being crushed and brushed off, the wood chips fall onto the screening plate 401. The rotation of the rotating column 303 drives the cam 403 to rotate. When the protrusion of the cam 403 contacts the roller of the roller frame 404, the screening plate 401 on the right-angle connecting plates 402 on both sides moves downward. At this time, the spring 406 is in a compressed state. When the protrusion of the cam 403 rotates out of the roller frame 404, the spring 406 quickly rebounds and drives the screening plate 401 to reset. This process repeats, causing the screening plate 401 to vibrate up and down to screen the wood chips. During this process, wood chips smaller than the screening groove of the screening plate 401 fall through the screening groove and are discharged into the crushing box 101, while wood chips larger than the screening groove of the screening plate 401 are discharged from the crushing box 101 along with the inclined screening plate 401. At the same time, because the roller of the roller frame 404 and the cam 403 make rotational contact, friction is greatly reduced.

[0027] According to another embodiment of the invention, such as Figure 1 , 2 As shown in Figures 3 and 4, a right protective shell 103 is provided on the right side of the crushing box 101. The chain 204, sprocket 203, auxiliary sprocket, linkage drive assembly and vibration drive unit are all located inside the right protective shell 103. The right protective shell 103 can protect the chain 204, sprocket 203, auxiliary sprocket, linkage drive assembly and vibration drive unit, ensuring that they will not be accidentally touched by personnel or contaminated by dust during transmission.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A raw material processing device for extracting materials from particleboard production using different raw materials, comprising a crushing box (101), characterized in that: The crushing box (101) is equipped with a linkage auxiliary chip ejection mechanism. The linkage auxiliary chip ejection mechanism includes a crushing barrel (302) inside the crushing box. Multiple chip dropping slots are opened on the outer arc surface of the crushing barrel (302). A bushing (208) is rotatable inside the crushing box (101). A brush plate (210) is provided on the outer side of the bushing (208). A linkage drive assembly is provided on the right side of the crushing box (101). The linkage drive assembly can drive the brush plate (210) to rotate around the crushing barrel (302) to brush away the wood chips stuck in the chip dropping slots.

2. The raw material processing equipment for particleboard production using different raw materials as described in claim 1, characterized in that: The crushing box (101) is also equipped with a crushing mechanism, which includes two crushing rollers (201) rotatably disposed inside the crushing box (101). Each crushing roller (201) is equipped with a sprocket (203) at its right end. An auxiliary sprocket is also rotatably disposed on the right side of the crushing box (101) via a rotating column. The sprocket (203) and the auxiliary sprocket are connected by a chain (204). A first drive unit is provided on the left side of the crushing box (101) to drive the two crushing rollers (201) to rotate and crush the wood.

3. The raw material processing equipment for particleboard production using different raw materials as described in claim 2, characterized in that: The first drive unit includes a first motor (202) disposed on the left side of the crushing box (101), and the output shaft of the first motor (202) is connected to the left end of the crushing roller (201) located on the rear side via a coupling.

4. The raw material processing equipment for particleboard production using different raw materials as described in claim 3, characterized in that: The linkage drive assembly includes a sliding guide column (205) disposed on the right side of the crushing box (101). A rack plate (206) is slidably disposed on the outer arc surface of the sliding guide column (205). A gear (209) is fixedly sleeved on the outer arc surface of the bushing (208) located on the right side. The gear (209) meshes with the rack plate (206). A slide rail frame (207) is disposed on the upper side of the rack plate (206). A slide column frame (211) is disposed at the right end of the rotating column. The slide column of the slide column frame (211) is slidably connected to the inside of the slide rail frame (207).

5. The raw material processing equipment for particleboard production using different raw materials as described in claim 1, characterized in that: A crushing mechanism is rotatably arranged inside the bushing (208). The crushing mechanism includes a rotating column (303) rotatably arranged between the two bushings (208). Multiple uniformly distributed crushing blades (304) are arranged on the outer arc surface of the rotating column (303). A second driving unit that can drive the crushing blades (304) to rotate and crush the wood chips is arranged on the left side of the crushing box (101).

6. The raw material processing equipment for particleboard production using different raw materials as described in claim 5, characterized in that: The second drive unit includes a left protective shell (104) disposed on the left side of the crushing box (101). A second motor (301) is disposed on the left side of the left protective shell (104). The output shaft of the second motor (301) passes through the interior of the left protective shell (104) through a coupling and is connected to the left end of the rotating column (303).

7. The raw material processing equipment for extracting particleboard production materials using different raw materials as described in claim 5, characterized in that: A vibrating screening mechanism is provided on the inner wall of the crushing box (101). The vibrating screening mechanism includes multiple mounting plates (405) on the inner wall of the crushing box (101). Each mounting plate (405) has a vibrating guide column (407) on its upper side. A screening plate (401) is slidably arranged between the outer arc surfaces of the multiple vibrating guide columns (407). Multiple springs (406) are arranged between the multiple mounting plates (405) and the screening plate (401). The multiple springs (406) are respectively sleeved on the outer arc surfaces of the corresponding vibrating guide columns (407). A vibration driving unit is provided on the outer arc surface of the rotating column (303).

8. The raw material processing equipment for extracting particleboard production materials using different raw materials as described in claim 7, characterized in that: The vibration drive unit includes cams (403) fixedly sleeved on the outer arc surface of two rotating columns (303), right-angle connecting plates (402) are provided on the left and right sides of the screening plate (401), and clearance slots adapted to the right-angle connecting plates (402) are opened on the left and right sides of the crushing box (101). A roller frame (404) is provided on the upper side of each right-angle connecting plate (402), and multiple cams (403) are respectively installed in cooperation with adjacent roller frames (404).

9. The raw material processing equipment for particleboard production using different raw materials as described in claim 1, characterized in that: The crushing box (101) is provided with a material guiding unit on the upper side inside. The material guiding unit includes a material guiding plate (102) on the upper side of the crushing box (101). The material guiding plate (102) is installed in conjunction with two crushing rollers (201).

10. The raw material processing equipment for extracting particleboard production materials using different raw materials as described in claim 8, characterized in that: The crushing box (101) is provided with a right protective shell (103) on the right side, and the chain (204), sprocket (203), auxiliary sprocket, linkage drive assembly and vibration drive unit are all located inside the right protective shell (103).

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