A device for producing shaving board with purification function
By designing a wood chip recycling mechanism in the particleboard production unit, and utilizing inclined plates to guide the flow and water to dissolve formaldehyde, the problems of wood chip scattering and formaldehyde volatilization are solved, thereby reducing environmental pollution and health risks.
Patent Information
- Application Number
- CN202410186781.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2044-02-20
AI Technical Summary
During the particleboard cutting process, wood chips are scattered, causing environmental pollution, and formaldehyde volatilization is serious, affecting air quality and worker health.
Design a particleboard production device with a wood chip recycling mechanism, including a cutting wheel, a bevel plate, a water storage block, and a water melting mechanism. The bevel plate guides the wood chips to the water storage block, and the water is used to dissolve formaldehyde. The wood chips are agitated and pressed to reduce formaldehyde volatilization.
It effectively collects and dissolves formaldehyde in wood chips, reducing environmental pollution and health risks, decreasing the volatilization of formaldehyde in the air, and improving the safety of the working environment.
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Figure CN117817788B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of particleboard production technology, specifically to a particleboard production device with a purification function. Background Technology
[0002] Particleboard, also known as chipboard, is a type of engineered wood product made by cutting various branches, small-diameter wood, fast-growing timber, wood chips, etc. into fragments of a certain size, drying them, mixing them with adhesives, hardeners, waterproofing agents, etc., and pressing them under certain temperature and pressure. The particles are not evenly arranged.
[0003] The particleboard production apparatus with purification function described in patent application CN215319321U is specifically a particleboard production apparatus with purification function. The particleboard production apparatus with purification function includes a hot press body; a first steel plate, the first steel plate being fixedly installed on one side of the hot press body; a formaldehyde purification chamber, the formaldehyde purification chamber being disposed on top of the first steel plate; a rotating mechanism, the rotating mechanism being disposed on the hot press body; and a receiving box, the receiving box being disposed on the rotating mechanism.
[0004] Currently, during the particleboard cutting process, a large amount of wood chips are easily scattered, causing dust to permeate the surrounding environment. Furthermore, after the particleboard is cut, the formaldehyde in the internal glue will quickly evaporate and rise into the air, greatly affecting the air quality in the surrounding factories and endangering the health of the workers. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a particleboard production device with a purification function, thereby solving the aforementioned problems.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a particleboard production device with purification function, comprising a placement plate, a support leg fixedly connected to the bottom of the placement plate, an electric sliding machine A slidably connected to the outer wall of the placement plate, a slide rail fixedly connected to the top of the electric sliding machine A, an electric sliding machine B slidably connected to the outer wall of the slide rail, an electric lifting machine slidably connected to the outer wall of the electric sliding machine B, a first connecting block fixedly connected to the bottom of the electric lifting machine, and a wood chip recycling mechanism provided on the outer wall of the first connecting block;
[0007] The wood chip recycling facility includes:
[0008] The second connecting block is a rectangular plate structure. The outer walls of the second connecting block are fixedly connected to each other. A motor is fixedly connected to the outer wall of the second connecting block. A cutting grinding wheel is fixedly connected to the output end of the motor. A rotating block is fixedly connected to the outer wall of the first connecting block. A hinge cover is rotatably connected to the outer wall of the rotating block.
[0009] The rotating shaft is a circular rod-shaped structure. A rotating sleeve is rotatably connected to the outer wall of the rotating shaft. The outer wall of the rotating shaft is fixedly connected to the inner wall of the hinge cover. A water storage block is rotatably connected to the outer wall of the rotating sleeve. The rotating shaft is used to support the hinge cover and the water storage block.
[0010] Preferably, an inclined plate is fixedly connected to the outer wall of the water storage block, and a groove is provided on the top of the inclined plate.
[0011] Preferably, the inner wall of the groove is semi-circular arc-shaped, a baffle A is fixedly connected to the top of the water storage block, and a baffle B is fixedly connected to the outer wall of the baffle A.
[0012] Preferably, a pull rope A is fixedly connected to the outer wall of the first connecting block, a hinge cover is fixedly connected to one end of the pull rope A, a pull rope B is fixedly connected to the outer wall of the hinge cover, and one end of the pull rope B is fixedly connected to the outer wall of the inclined plate.
[0013] Preferably, the inner wall of the inclined plate is provided with a water melting mechanism, the water melting mechanism includes an opening and closing plate, the outer wall of the opening and closing plate is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the opening and closing plate has a circular hole.
[0014] Preferably, an arc-shaped rod A is fixedly connected to the bottom of the opening and closing plate, an arc-shaped sleeve is slidably connected to the outer wall of the arc-shaped rod A, an arc-shaped rod B is slidably connected to the inner wall of the arc-shaped sleeve, and one end of the arc-shaped rod B is fixedly connected to the bottom of the inner wall of the water storage block.
[0015] Preferably, a threaded rod is fixedly connected to the outer wall of the rotating shaft, an internal threaded sleeve is threadedly connected to the outer wall of the threaded rod, and a fan blade is fixedly connected to the outer wall of the internal threaded sleeve.
[0016] Preferably, the inner wall of the water storage block is provided with a square groove, the inner wall of the arc-shaped sleeve is connected to the inner wall of the arc-shaped rod A, the inner wall of the arc-shaped rod A is connected to the inner wall of the opening and closing plate, the inner wall of the opening and closing plate is connected to the inner wall of the rotating shaft, the inner wall of the rotating shaft is connected to the inner wall of the threaded rod, and the inner wall of the threaded rod is connected to the inner wall of the inner threaded sleeve.
[0017] This invention provides a particleboard production apparatus with a purification function. It has the following beneficial effects:
[0018] 1. This invention, by setting up a sawdust recycling mechanism, ensures that when cutting wood boards, the sawdust generated by the cutting wheel is thrown to one side of the cutting wheel. Because one side of the cutting wheel is equipped with an inclined plate, the sawdust flies into the water storage block along with the inclined plate and the groove in the middle of the inclined plate. It is then blocked by baffles A and B on the water storage block and by the inner wall of the hinge cover, thus falling into the interior of the water storage block. This achieves the guidance and collection of sawdust. Furthermore, as the first connecting block pushes the cutting wheel down, it simultaneously pushes the hinge cover to rotate. Through the rotating shaft, the water storage block and the inclined plate slide synchronously to both sides of the cutting wheel, keeping the inclined plate and the water storage block able to cover and collect sawdust as the cutting wheel descends, adaptively completing the full-process tracking and collection of sawdust.
[0019] 2. This invention incorporates a sawdust recycling mechanism. Before cutting, half-full water is added to the water storage block. The sawdust, thrown into the block, combines with the water, thus fully dissolving the large amount of formaldehyde volatilized from the sawdust in the water. Because formaldehyde is readily soluble in water, the surface area of the water is much smaller than the surface area of the sawdust, resulting in a much lower volatilization rate of formaldehyde in the water compared to that in the sawdust. This reduces the impact of formaldehyde spillage after sawdust cutting on the health of surrounding workers and the environmental pollution.
[0020] 3. This invention, by setting up a sawdust recycling mechanism, ensures that when the cutting wheel is driven to descend and cut, the water storage block abuts against the wooden board. As the first connecting block and the cutting wheel descend, the hinge cover opens outward. The hinge cover drives the rotating shaft to rotate, while the water storage block remains horizontal due to the surface of the wooden board and cannot rotate. Thus, the rotating shaft rotates relative to the water storage block, causing the opening and closing plate on the rotating shaft to rotate and press down. This pressing down of the opening and closing plate compresses the sawdust floating on it, making it fully submerged in the water. Because some sawdust has a density less than water, it floats on the water surface. Through the automatic flipping and pressing down of the opening and closing plate, the sawdust and water are fully mixed, reducing the problem of a large amount of sawdust floating on the water surface and unable to fall.
[0021] 4. This invention incorporates a water-melting mechanism. Through the connection between the inside of the opening and closing plate and the inside of the rotating shaft, the liquid enters the threaded rod via the rotating shaft. The threaded rod is hollow, allowing the liquid to enter the inner threaded sleeve. The inner threaded sleeve, propelled by the liquid, rotates on the threads on the outer wall of the threaded rod. The helix angle of the threads on the outer wall of the threaded rod is greater than 50 degrees, resulting in rapid rotation and low friction. The liquid's pressure propels the fan blades to rotate, thoroughly agitating the water and sawdust on the inner wall of the water storage block, mixing them together. After the sawdust fully absorbs water and fills the internal gaps, it quickly sinks into the water, reducing the problem of formaldehyde evaporation caused by exposure to air. This significantly reduces environmental pollution during particleboard cutting.
[0022] 5. By setting up a water melting mechanism, when the water is moved by the opening and closing plate, the shaking of the water on the inner wall of the water storage block will be impacted by the numerous square grooves opened on the inner wall of the water storage block. The water will impact the square grooves, thereby reducing the amplitude and duration of the water sliding back and forth on the inner wall of the water storage block. This effectively reduces the shaking caused by the opening and closing plate and the vibration during cutting, which can cause the water to shake and spill outside the water storage block. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the present invention;
[0024] Figure 2 This is a schematic diagram of the wood chip recycling mechanism of the present invention. Figure 1 ;
[0025] Figure 3 This is a cross-sectional structural diagram of the wood chip recycling mechanism of the present invention;
[0026] Figure 4 This is a schematic diagram of the wood chip recycling mechanism of the present invention. Figure 2 ;
[0027] Figure 5 The motion state of the wood chip recycling mechanism of the present invention Figure 1 ;
[0028] Figure 6 The motion state of the wood chip recycling mechanism of the present invention Figure 2 ;
[0029] Figure 7 This is a schematic diagram of the water melting mechanism of the present invention;
[0030] Figure 8 This is a schematic diagram of the disassembly structure of the water melting mechanism of the present invention. Figure 1 ;
[0031] Figure 9 This is a schematic diagram of the disassembly structure of the water melting mechanism of the present invention. Figure 2 .
[0032] In the diagram: 1 Support leg, 2 First connecting block, 3 Wood chip recycling mechanism, 301 Second connecting block, 302 Motor, 303 Rotating block, 304 Hinge cover, 305 Rotating shaft, 306 Water storage block, 307 Inclined plate, 308 Groove, 309 Baffle A, 310 Baffle B, 311 Rotating sleeve, 312 Pull rope A, 313 Pull rope B, 4 Water melting mechanism, 401 Opening and closing plate, 402 Circular hole, 403 Arc rod A, 404 Arc sleeve, 405 Arc rod B, 406 Threaded rod, 407 Internal threaded sleeve, 408 Fan blade, 409 Square groove, 5 Placement plate, 6 Electric sliding machine A, 7 Slide rail, 8 Electric sliding machine B, 9 Electric lifting machine, 10 Cutting grinding wheel. Detailed Implementation
[0033] Example 1:
[0034] Please see Figure 1-3 The present invention provides a technical solution: a particleboard production device with purification function, including a placement plate 5, a support leg 1 fixedly connected to the bottom of the placement plate 5, an electric sliding machine A6 slidably connected to the outer wall of the placement plate 5, a slide rail 7 fixedly connected to the top of the electric sliding machine A6, an electric sliding machine B8 slidably connected to the outer wall of the slide rail 7, an electric lifting machine 9 slidably connected to the outer wall of the electric sliding machine B8, a first connecting block 2 fixedly connected to the bottom of the electric lifting machine 9, and a wood chip recycling mechanism 3 provided on the outer wall of the first connecting block 2;
[0035] The wood chip recycling mechanism 3 includes:
[0036] The second connecting block 301 is a rectangular plate structure. The outer wall of the second connecting block 301 is fixedly connected to the outer wall of the first connecting block 2. A motor 302 is fixedly connected to the outer wall of the second connecting block 301. A cutting grinding wheel 10 is fixedly connected to the output end of the motor 302. A rotating block 303 is fixedly connected to the outer wall of the first connecting block 2. A hinge cover 304 is rotatably connected to the outer wall of the rotating block 303.
[0037] A rotating shaft 305 is a circular rod-shaped structure. A rotating sleeve 311 is rotatably connected to the outer wall of the rotating shaft 305. The outer wall of the rotating shaft 305 is fixedly connected to the inner wall of the hinge cover 304. A water storage block 306 is rotatably connected to the outer wall of the rotating sleeve 311. The rotating shaft 305 is used to support the hinge cover 304 and the water storage block 306.
[0038] Example 2:
[0039] Please see Figure 1-6 Based on Embodiment 1, the present invention provides a technical solution: an inclined plate 307 is fixedly connected to the outer wall of the water storage block 306, and a groove 308 is provided on the top of the inclined plate 307.
[0040] The inner wall of the groove 308 is a semi-circular arc surface. A baffle A309 is fixedly connected to the top of the water storage block 306, and a baffle B310 is fixedly connected to the outer wall of the baffle A309.
[0041] A pull rope A312 is fixedly connected to the outer wall of the first connecting block 2. One end of the pull rope A312 is fixedly connected to a hinge cover 304. A pull rope B313 is fixedly connected to the outer wall of the hinge cover 304. One end of the pull rope B313 is fixedly connected to the outer wall of the inclined plate 307.
[0042] Example 3:
[0043] Please see Figure 1-9Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: the inner wall of the inclined plate 307 is provided with a water melting mechanism 4, the water melting mechanism 4 includes an opening and closing plate 401, the outer wall of the opening and closing plate 401 is fixedly connected to the outer wall of the rotating shaft 305, and a circular hole 402 is provided on the outer wall of the opening and closing plate 401.
[0044] An arc-shaped rod A403 is fixedly connected to the bottom of the opening and closing plate 401. An arc-shaped sleeve 404 is slidably connected to the outer wall of the arc-shaped rod A403. An arc-shaped rod B405 is slidably connected to the inner wall of the arc-shaped sleeve 404. One end of the arc-shaped rod B405 is fixedly connected to the bottom of the inner wall of the water storage block 306.
[0045] A threaded rod 406 is fixedly connected to the outer wall of the rotating shaft 305. An internal threaded sleeve 407 is threadedly connected to the outer wall of the threaded rod 406. A fan blade 408 is fixedly connected to the outer wall of the internal threaded sleeve 407.
[0046] The inner wall of the water storage block 306 is provided with a square groove 409. The inner wall of the arc sleeve 404 is connected to the inner wall of the arc rod A403. The inner wall of the arc rod A403 is connected to the inner wall of the opening and closing plate 401. The inner wall of the opening and closing plate 401 is connected to the inner wall of the rotating shaft 305. The inner wall of the rotating shaft 305 is connected to the inner wall of the threaded rod 406. The inner wall of the threaded rod 406 is connected to the inner wall of the internal threaded sleeve 407.
[0047] Place the wooden board to be cleaned onto the placement board 5, then start the electric sliding machine A6 to drive the slide rail 7 to move horizontally on the outer wall of the placement board 5, and start the electric sliding machine B8 to control the electric lifting machine 9 to move on the slide rail 7. Finally, after the electric lifting machine 9 moves to the appropriate position, start the electric lifting machine 9 to control the first connecting block 2 to descend, and start the motor 302 to control the cutting wheel 10 to cut the surface of the wooden board. During the cutting, as the electric sliding machine A6 controls the slide rail 7 to move, the cutting wheel 10 will perform linear cutting on the wooden board.
[0048] When cutting the wood, the wood chips generated by the cutting wheel 10 are thrown to one side of the cutting wheel 10. Because one side of the cutting wheel 10 is equipped with a beveled plate 307, the wood chips fly into the water storage block 306 along with the beveled plate 307 and the groove 308 in the middle of the beveled plate 307. They are blocked by the baffles A309 and B310 on the water storage block 306 and by the inner wall of the hinge cover 304, thus falling into the interior of the water storage block 306. This achieves the guidance and collection of wood chips. As the first connecting block 2 pushes the cutting wheel 10 down, it simultaneously pushes the hinge cover 304 to rotate. Through the rotating shaft 305, the water storage block 306 and the beveled plate 307 slide synchronously to both sides of the cutting wheel 10. This ensures that the beveled plate 307 and the water storage block 306 can cover and collect the wood chips as the cutting wheel 10 descends, adaptively completing the full-process tracking and collection of wood chips.
[0049] After the cutting is completed, as the first connecting block 2 and the cutting wheel 10 are lifted up, the hinge cover 304 will also be pulled and limited by the pull rope A312, and will not continue to rotate and descend to the angle of vertical ground. This ensures that the problem of the hinge cover 304 continuing to rotate under the hinge of the rotating block 303 will not occur when the cutting wheel 10 continues to clean the wooden board below. Similarly, the inclined plate 307 and the water storage block 306 are also kept in a horizontal state by the pull of the pull rope B313, so that the inclined plate 307 and the water storage block 306 will not flip due to gravity.
[0050] Before cutting, half water is added to the water storage block 306. When the sawdust is thrown into the water storage block 306, it combines with the water, thus fully dissolving the large amount of formaldehyde volatilized from the sawdust in the water. Because formaldehyde is easily soluble in water, after water is added, the surface area of the water is much smaller than the surface area of the sawdust, so the volatilization rate of formaldehyde in the water is much lower than the volatilization rate of formaldehyde in the sawdust. This reduces the impact of formaldehyde overflow after sawdust cutting on the health of surrounding workers and the pollution to the environment.
[0051] When the cutting wheel 10 is driven to descend and cut, after the water storage block 306 abuts against the wooden board, as the first connecting block 2 and the cutting wheel 10 descend and push the hinge cover 304 to open outward, the hinge cover 304 drives the rotating shaft 305 to rotate. The water storage block 306 remains horizontal due to the surface of the wooden board and cannot rotate. As a result, the rotating shaft 305 will rotate relative to the water storage block 306, which will drive the opening and closing plate 401 on the rotating shaft 305 to rotate and press down. Through the pressing down of the opening and closing plate 401, the wood chips floating on it will be pressed down and fully pressed into the water. Because some wood chips have a density less than water, they will float on the water surface. Through the automatic flipping and pressing down of the opening and closing plate 401, the wood chips and water are fully mixed, reducing the problem of a large number of wood chips floating on the water surface and not falling.
[0052] Furthermore, after the cutting is finished, as the first connecting block 2 and the cutting grinding wheel 10 rise back to their original positions, the rotation of the shaft 305 will cause the opening and closing plate 401 to rotate and lift. The wood chips that fall on the opening and closing plate 401 will slide down the inclined surface of the opening and closing plate 401 into the water below, and the problem of wood chips always being on the opening and closing plate 401 will not occur.
[0053] As the opening and closing plate 401 rotates and presses down, it pushes the arc-shaped rod A403, arc-shaped sleeve 404, and arc-shaped rod B405 downwards. The arc-shaped sleeve 404 contains liquid, and the arc-shaped rod B405 compresses the liquid inside the arc-shaped sleeve 404, causing the liquid to enter the arc-shaped rod A403. From there, the liquid enters the opening and closing plate 401, and through the connection between the opening and closing plate 401 and the rotating shaft 305, it enters the threaded rod 406. The threaded rod 406 is hollow, allowing the liquid to enter the inner threaded sleeve 407 through it. Inside, the inner threaded sleeve 407 is pushed by the liquid and rotates on the thread on the outer wall of the threaded rod 406. The thread helix angle of the outer wall of the threaded rod 406 is greater than 50 degrees, so the rotation is fast and the friction is small. It can be pushed by the liquid to drive the fan blade 408 to rotate, which fully agitates the water and wood chips on the inner wall of the water storage block 306, making them mix together. After the wood chips fully absorb water and fill the internal gaps, they can quickly sink into the water, reducing the problem of formaldehyde evaporation caused by exposure to air, and thus greatly reducing the pollution to the surrounding environment when cutting particleboard.
[0054] Furthermore, when the water is agitated by the opening and closing plate 401, the swaying of the water on the inner wall of the water storage block 306 will cause it to collide with the numerous square grooves 409 opened on the inner wall of the water storage block 306. The water will collide with the square grooves 409, thereby reducing the amplitude and duration of the water sliding back and forth on the inner wall of the water storage block 306. This effectively reduces the swaying caused by the opening and closing plate 401 and the vibration during cutting, which would cause the water to shake and spill outside the water storage block 306.
[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A particleboard production device with a purification function, comprising a placement plate (5), wherein a support leg (1) is fixedly connected to the bottom of the placement plate (5), an electric sliding machine A (6) is slidably connected to the outer wall of the placement plate (5), a slide rail (7) is fixedly connected to the top of the electric sliding machine A (6), an electric sliding machine B (8) is slidably connected to the outer wall of the slide rail (7), an electric lifting machine (9) is slidably connected to the outer wall of the electric sliding machine B (8), and a first connecting block (2) is fixedly connected to the bottom of the electric lifting machine (9), characterized in that: The outer wall of the first connecting block (2) is provided with a wood chip recycling mechanism (3); The wood chip recycling facility (3) includes: The second connecting block (301) is a rectangular plate structure. The outer wall of the second connecting block (301) is fixedly connected to the outer wall of the first connecting block (2). A motor (302) is fixedly connected to the outer wall of the second connecting block (301). A cutting grinding wheel (10) is fixedly connected to the output end of the motor (302). A rotating block (303) is fixedly connected to the outer wall of the first connecting block (2). A hinge cover (304) is rotatably connected to the outer wall of the rotating block (303). A rotating shaft (305) is a circular rod-shaped structure. A rotating sleeve (311) is rotatably connected to the outer wall of the rotating shaft (305). The outer wall of the rotating shaft (305) is fixedly connected to the inner wall of the hinge cover (304). A water storage block (306) is rotatably connected to the outer wall of the rotating sleeve (311). The rotating shaft (305) is used to support the hinge cover (304) and the water storage block (306). An inclined plate (307) is fixedly connected to the outer wall of the water storage block (306), and a groove (308) is provided on the top of the inclined plate (307); The inner wall of the groove (308) is semi-circular arc-shaped, and a baffle A (309) is fixedly connected to the top of the water storage block (306), and a baffle B (310) is fixedly connected to the outer wall of the baffle A (309). The outer wall of the first connecting block (2) is fixedly connected to a pull rope A (312), one end of the pull rope A (312) is fixedly connected to a hinge cover (304), the outer wall of the hinge cover (304) is fixedly connected to a pull rope B (313), and one end of the pull rope B (313) is fixedly connected to the outer wall of the inclined plate (307). The inner wall of the inclined plate (307) is provided with a water melting mechanism (4), the water melting mechanism (4) includes an opening and closing plate (401), the outer wall of the opening and closing plate (401) is fixedly connected to the outer wall of the rotating shaft (305), and a circular hole (402) is opened on the outer wall of the opening and closing plate (401).
2. The particleboard production device with purification function according to claim 1, characterized in that: The bottom of the opening and closing plate (401) is fixedly connected to an arc-shaped rod A (403), the outer wall of the arc-shaped rod A (403) is slidably connected to an arc-shaped sleeve (404), the inner wall of the arc-shaped sleeve (404) is slidably connected to an arc-shaped rod B (405), and one end of the arc-shaped rod B (405) is fixedly connected to the bottom of the inner wall of the water storage block (306).
3. The particleboard production device with purification function according to claim 2, characterized in that: A threaded rod (406) is fixedly connected to the outer wall of the rotating shaft (305), and an inner threaded sleeve (407) is threadedly connected to the outer wall of the threaded rod (406). A fan blade (408) is fixedly connected to the outer wall of the inner threaded sleeve (407).
4. The particleboard production device with purification function according to claim 3, characterized in that: The inner wall of the water storage block (306) is provided with a square groove (409). The inner wall of the arc sleeve (404) is connected to the inner wall of the arc rod A (403). The inner wall of the arc rod A (403) is connected to the inner wall of the opening and closing plate (401). The inner wall of the opening and closing plate (401) is connected to the inner wall of the rotating shaft (305). The inner wall of the rotating shaft (305) is connected to the inner wall of the threaded rod (406). The inner wall of the threaded rod (406) is connected to the inner wall of the inner threaded sleeve (407).
Citation Information
Patent Citations
Shaving board production device with purification function
CN215319321U
Efficient and environment-friendly trunking tool
CN214773117U
Softwood sheet cutting machine capable of collecting sawdust
CN215825495U
Sawing equipment for shaving board
CN219006340U