Grinding and polishing equipment for wood product processing

Abstract

The invention belongs to the technical field of product polishing, and particularly relates to grinding and polishing equipment for wood product processing, which comprises a supporting seat, a polishing part is arranged at the upper part of the supporting seat, the polishing part is provided with an upper part and a lower part, and the upper surface and the lower surface of a wood product are subjected to friction polishing through the polishing part of the upper part and the polishing part of the lower part; a lifting part is arranged on one side of the polishing part, the lifting part can move the upper polishing part in the vertical direction, and the distance between the upper polishing part and the lower polishing part is changed so as to adapt to wood products of different sizes; a transmission part is arranged on the other side of the polishing part and can still enable power to be transmitted to the polishing parts of the two parts for driving when the distance between the polishing parts of the upper part and the lower part is changed; a pushing part is arranged on the upper portion of the supporting base. The polishing device is tightly attached to the surface of the wooden product for friction polishing, meanwhile, the distance between the polishing parts can be adjusted to adapt to wooden products of different specifications, and the application range of the polishing device is widened.

Description

Technical Field

[0001] The invention belongs to the technical field of product polishing, and in particular relates to a grinding and polishing device for processing wooden products. Background Art

[0002] When manufacturing wooden decorations, log materials need to be processed. The processing of log materials is divided into primary processing and deep processing. Primary processing includes cutting, grinding and other processes, deep processing includes painting, drying and other processes. The painting process for cylindrical workpieces includes painting the sides and tops of the workpieces. Among them, polishing of log materials is extremely important, and it is an important step in the subsequent processes of wood product processing.

[0003] The currently available wood board polishing device can only polish one side of the wood board. When the other side of the wood board needs to be polished, the wood board needs to be turned over, which increases the processing time of the wood board and reduces the polishing efficiency of the wood board. At the same time, the polishing size of the polishing device is relatively single. When polishing wood boards of different specifications, the operation process of adjusting the polishing interval is relatively cumbersome, which also reduces the polishing efficiency of the wood board to a certain extent. Summary of the invention

[0004] The purpose of the present invention is to provide a grinding and polishing device for wood product processing, which can perform friction polishing in close contact with the surface of the wood product, and can also adjust the distance between the polishing parts to adapt to wood products of different specifications, thereby increasing the application range of the polishing device.

[0005] The technical solution adopted by the present invention is as follows: A grinding and polishing device for processing wooden products, comprising a support seat, a polishing part is arranged on the upper part of the support seat, and the polishing part is arranged with an upper and a lower part, and the upper and lower surfaces of the wooden product are frictionally polished by the polishing parts of the upper and lower parts; A lifting part is provided on one side of the polishing part, and the lifting part can move the polishing part at the upper part in a vertical direction, and change the distance between the polishing parts at the upper and lower parts, so as to adapt to wooden products of different sizes; A transmission part is provided on the other side of the polishing part, and the transmission part can transmit power to the polishing parts of the two parts for driving when the distance between the polishing parts of the upper and lower parts changes; The upper part of the support seat is provided with a pushing part, through which the wooden product is fixed and the wooden product is pushed into between the two polishing parts for polishing; The transmission part includes a fixed wheel, a limit seat, a limit wheel, a transmission belt, a guide rod, an elastic extrusion piece and a driving motor. Two fixed wheels are provided, and the two fixed wheels are fixedly connected to the corresponding polishing parts. The limit seat is slidably connected to the inside of the support seat. Two limit wheels are provided, and both limit wheels are rotatably connected to the inside of the limit seat. The inside of the transmission belt contacts the outer edges of the fixed wheel and the limit wheel. The guide rod is fixedly arranged inside the support seat. The elastic extrusion piece is arranged between the limit seat and the support seat. The driving motor is fixedly connected to the inside of the support seat, and the output end of the support seat is fixedly connected to the corresponding fixed wheel.

[0006] In a preferred solution, the limiting wheel is arranged between the two fixed wheels, and the limiting wheel is squeezed and pulled by the limiting seat so that the middle part of the transmission belt is bent.

[0007] In a preferred embodiment, the polishing part includes a mounting seat, a polishing belt, an extrusion plate, an elastic reset member, a driving rod, a fixed plate and an elastic fixing member. The mounting seat is fixedly connected to the corresponding support seat and the lifting part, the inner side of the polishing belt is rotatably connected to the inside of the mounting seat, the extrusion plate is slidably arranged at the lower end inside the mounting seat, the elastic reset member is arranged between the mounting seat and the extrusion plate, the driving rod is rotatably arranged inside the mounting seat, and the outer edge of the driving rod is in contact with the inner side of the polishing belt, one end of the driving rod is fixedly connected to the axis of the fixed wheel, the fixed plate is slidably arranged inside the mounting seat, and the lower end of the fixed plate is in contact with the outer edge of the polishing belt, and the elastic fixing member is arranged between the extrusion plate and the mounting seat.

[0008] In a preferred embodiment, a rotating ring is rotatably arranged inside the mounting seat, and the outer edge of the rotating ring contacts the inner side of the polishing belt.

[0009] In a preferred embodiment, a plurality of squeezing rollers are rotatably provided at the lower end of the squeezing plate, and the outer edges of the squeezing rollers are in contact with the inner side of the polishing belt.

[0010] In a preferred embodiment, two fixed rollers are rotatably provided at the lower end of the fixed plate, the two fixed rollers are matched with the upper end of the driving rod, and the outer edges of the fixed rollers are in contact with the polishing belt at the driving rod.

[0011] In a preferred embodiment, the lifting part includes a fixed seat, a lifting motor, a rotating wheel, a driving chain, a lifting screw and a lifting block. The fixed seat is fixedly connected to the inside of the support seat, the lifting motor is fixedly connected to the inside of the fixed seat, two rotating wheels are provided, one of which is fixedly connected to the output end of the lifting motor, the two ends on the inner side of the driving chain are in contact with the outer edge of the corresponding rotating wheel, the lower end of the lifting screw is fixedly connected to the axis of the rotating wheel, one end of the lifting block is fixedly connected to the mounting seat at the upper end, and the inside of the lifting block is threadedly connected to the outer edge of the lifting screw.

[0012] In a preferred embodiment, the pushing part includes a pushing frame, a pushing motor, a pushing roller, a pushing belt, a sliding plate, a driven roller and an elastic pushing member. The pushing frame is fixedly connected to the support seat, the pushing motor is fixedly connected to the inside of the pushing frame, two pushing rollers are provided, and the two pushing rollers are rotatably arranged at the two ends of the pushing frame respectively, the two ends of the inner side of the pushing belt are in contact with one end of the pushing roller, two sliding plates are provided, and the lower ends of the two sliding plates are matched with the upper end of the pushing roller, the driven roller is rotatably arranged at the lower end of the sliding plate, and the elastic pushing member is arranged between the sliding plate and the pushing frame.

[0013] In a preferred embodiment, the outer edges of the push roller and the driven roller are provided with a rubber layer.

[0014] In a preferred embodiment, the upper end of the outer edge of the push roller is horizontally matched with the polishing belt at the bottom.

[0015] The technical effects achieved by the present invention are: The present invention adopts the design of the transmission part, through which the power can be transmitted to the polishing parts of the upper and lower parts through the transmission belt to drive when the distance between the polishing parts of the upper and lower parts changes, thereby ensuring the transmission of the polishing power of the polishing parts; The present invention adopts the design of the polishing part, and ensures that the protruding parts of the polishing belt correspond to each other through the correspondence of the upper and lower polishing part extrusion plates, so that when the wooden product to be polished is at the extrusion plate, the polishing belt is always squeezed by the extrusion plate, thereby ensuring that the polishing belt is always in contact with the surface of the wooden product, thereby increasing the polishing effect of the polishing belt on the wooden product; The present invention adopts the design of the pushing part, and drives the pushing roller at the output end to rotate through the pushing motor. The rotation of the pushing roller drives the pushing belt to rotate, thereby driving another pushing roller to rotate at the same speed. At the same time, the rotation of the pushing roller drives the contacting wooden products to move, thereby realizing the transportation of the wooden products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an embodiment of the present invention; Figure 2 is a schematic diagram of the overall internal right side of an embodiment of the present invention; Figure 3 is a schematic diagram of the entire interior left side of an embodiment of the present invention; Figure 4 is a schematic diagram of a push unit of an embodiment of the present invention; Figure 5 is an exploded view of a push portion of an embodiment of the present invention; Figure 6 is an exploded view of a transmission part of an embodiment of the present invention; Figure 7 is an exploded view of a lifting portion of an embodiment of the present invention; Figure 8 is a side cross-sectional view of a polishing portion of an embodiment of the present invention; Fig. 9 is an exploded view of a polishing portion of an embodiment of the present invention; Fig.10 It is an overall side sectional view of an embodiment of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Support seat; 2. Polishing part; 201. Mounting seat; 2011. Rotating ring; 202. Polishing belt; 203. Extrusion plate; 2031. Extrusion roller; 204. Elastic reset member; 205. Driving rod; 206. Fixing plate; 2061. Fixing roller; 207. Elastic fixing member; 3. Lifting part; 301. Fixing seat; 302. Lifting motor; 303. Rotating wheel; 304. Driving chain; 305. Lifting Lifting screw; 306, lifting block; 4, transmission part; 401, fixed wheel; 402, limit seat; 403, limit wheel; 404, transmission belt; 405, guide rod; 406, elastic extrusion member; 407, driving motor; 5, pushing part; 501, pushing frame; 502, pushing motor; 503, pushing roller; 504, pushing belt; 505, sliding plate; 506, driven roller; 507, elastic pushing member. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0022] See also Figures 1 to 10 As shown, the present invention provides a grinding and polishing device for wood product processing, comprising a support seat 1, a polishing portion 2 is arranged on the upper part of the support seat 1, and the polishing portion 2 is arranged with an upper and lower part, and the upper and lower surfaces of the wood product are frictionally polished by the polishing portion 2 of the upper and lower parts; A lifting part 3 is provided on one side of the polishing part 2, and the lifting part 3 can move the polishing part 2 at the upper part in a vertical direction, and change the distance between the polishing parts 2 at the upper and lower parts, so as to adapt to wooden products of different sizes; A transmission part 4 is provided on the other side of the polishing part 2. The transmission part 4 can transmit power to the two parts of the polishing part 2 for driving when the distance between the upper and lower parts of the polishing part 2 changes. A pushing portion 5 is provided on the upper portion of the support seat 1, and the wooden product is fixed by the pushing portion 5, and the wooden product is pushed into between the two polishing portions 2 for polishing; The transmission part 4 includes a fixed wheel 401, a limiting seat 402, a limiting wheel 403, a transmission belt 404, a guide rod 405, an elastic extrusion piece 406 and a driving motor 407. Two fixed wheels 401 are provided, and the two fixed wheels 401 are fixedly connected to the corresponding polishing part 2. The limiting seat 402 is slidably connected to the inside of the support seat 1. Two limiting wheels 403 are provided, and the two limiting wheels 403 are both rotationally connected to the inside of the limiting seat 402. The inside of the transmission belt 404 contacts the outer edges of the fixed wheel 401 and the limiting wheel 403. The guide rod 405 is fixedly arranged inside the support seat 1. The elastic extrusion piece 406 is arranged between the limiting seat 402 and the support seat 1. The driving motor 407 is fixedly connected to the inside of the support seat 1, and the output end of the support seat 1 is fixedly connected to the corresponding fixed wheel 401.

[0023] Specifically, when a wooden product needs to be polished, the corresponding polishing part 2 is first driven by the lifting part 3 to move in the vertical direction, so as to adjust the distance between the upper and lower parts of the polishing part 2 to adapt to wooden products of different specifications; At the same time, during the adjustment of the upper and lower parts of the polishing part 2, the upper polishing part 2 drives the corresponding fixed wheel 401 to move, and at this time the fixed wheel 401 drives the middle part of the transmission belt 404 to move, and at this time the transmission belt 404 drives the limiting seat 402 to slide along the guide rod 405. Since the limiting seat 402 is subjected to the extrusion force of the elastic extrusion member 406, the limiting seat 402 drives the limiting wheel 403 to always contact the transmission belt 404, so that the transmission belt 404 is always in a straight state, thereby ensuring the power transmission of the transmission belt 404; The output end of the driving motor 407 drives the corresponding fixed wheel 401 to rotate, and the rotation of the fixed wheel 401 transmits power to another fixed wheel 401 through the transmission belt 404. The two rotating fixed wheels 401 drive the corresponding driving rods 205 to rotate, so that the upper and lower parts of the polishing part 2 rotate simultaneously; Then the end of the wood product that needs to be polished is first fixedly transported to the inside of the polishing part 2 through the pushing part 5 for friction polishing, ensuring that the pushing speed of the wood product is uniform, and at the same time, it can also prevent the wood product from being pushed by the polishing pressure of the polishing part 2.

[0024] See also Figure 6 As shown, the limiting wheel 403 is arranged between the two fixed wheels 401, and the limiting wheel 403 is squeezed and pulled by the limiting seat 402 so that the middle part of the transmission belt 404 is bent. The bent transmission belt 404 can increase the contact area between the inner side of the transmission belt 404 and the fixed wheel 401, further increase the friction between the transmission belt 404 and the fixed wheel 401, and ensure the power transmission when the fixed wheel 401 rotates.

[0025] See also Figures 8 to 10 As shown, the polishing part 2 includes a mounting seat 201, a polishing belt 202, an extrusion plate 203, an elastic reset member 204, a driving rod 205, a fixing plate 206 and an elastic fixing member 207. The mounting seat 201 is fixedly connected to the corresponding supporting seat 1 and the lifting portion 3. The inner side of the polishing belt 202 is rotatably connected to the inside of the mounting seat 201. The extrusion plate 203 is slidably arranged at the lower end inside the mounting seat 201. The elastic reset member 204 is arranged between the mounting seat 201 and the extrusion plate 203. The driving rod 205 is rotatably arranged inside the mounting seat 201, and the outer edge of the driving rod 205 contacts the inner side of the polishing belt 202. One end of the driving rod 205 is fixedly connected to the axis of the fixed wheel 401. The fixing plate 206 is slidably arranged inside the mounting seat 201, and the lower end of the fixing plate 206 contacts the outer edge of the polishing belt 202. The elastic fixing member 207 is arranged between the extrusion plate 203 and the mounting seat 201. The rotation of the fixed wheel 401 drives the driving rod 205 to rotate. At this time, the fixed plate 206 is elastically squeezed by the elastic fixing member 207, so that the fixed plate 206 always applies pressure in the direction of the driving rod 205, so that the fixed plate 206 applies pressure to the polishing belt 202, so that the polishing belt 202 is always in contact with the outer edge of the driving rod 205, increasing the contact pressure between the polishing belt 202 and the outer edge of the driving rod 205, and ensuring that the rotation of the driving rod 205 can drive the polishing belt 202 to rotate together; During the rotation of the polishing belt 202, the extrusion plate 203 is squeezed by the elastic reset member 204 and extends out of the mounting seat 201, and drives the corresponding polishing belt 202 to protrude slightly; At this time, the correspondence between the extrusion plates 203 of the upper and lower parts of the polishing portion 2 ensures that the protruding parts of the polishing belt 202 correspond to each other, so that when the wooden product to be polished is at the extrusion plate 203, the polishing belt 202 is always squeezed by the extrusion plate 203, thereby ensuring that the polishing belt 202 is always in contact with the surface of the wooden product, thereby increasing the polishing effect of the polishing belt 202 on the wooden product.

[0026] See also Figures 8 to 10 As shown, a rotating ring 2011 is provided inside the mounting seat 201 for rotation, and the outer edge of the rotating ring 2011 is in contact with the inner side of the polishing belt 202. During the rotation of the polishing belt 202, the rotating ring 2011 in contact is driven to rotate together, thereby reducing the rotation of the polishing belt 202 through the rotating ring 2011 during the rotation, and reducing the friction between the polishing belt 202 and the mounting seat 201.

[0027] See also Figures 8 to 10 As shown, a plurality of squeezing rollers 2031 are rotatably provided at the lower end of the squeezing plate 203, and the outer edges of the squeezing rollers 2031 are in contact with the inner side of the polishing belt 202. The squeezing rollers 2031 rotate during the rotation of the polishing belt 202, thereby reducing the friction between the polishing belt 202 and the squeezing plate 203 during the rotation.

[0028] See also Figures 8 to 10 As shown, two fixed rollers 2061 are rotatably provided at the lower end of the fixed plate 206, and the two fixed rollers 2061 cooperate with the upper end of the driving rod 205. At the same time, the outer edge of the fixed roller 2061 contacts the polishing belt 202 at the driving rod 205. The contact area between the fixed plate 206 and the outer edge of the driving rod 205 is increased by the two fixed rollers 2061, thereby ensuring the friction force between the contact point of the polishing belt 202 and the driving rod 205, preventing the polishing belt 202 from separating from the outer edge of the driving rod 205 when the driving rod 205 rotates at high speed, thereby ensuring the power transmission between the driving rod 205 and the polishing belt 202.

[0029] See also Figures 1 to 3 as well as Figure 7As shown, the lifting part 3 includes a fixed seat 301, a lifting motor 302, a rotating wheel 303, a driving chain 304, a lifting screw 305 and a lifting block 306. The fixed seat 301 is fixedly connected to the inside of the support seat 1, the lifting motor 302 is fixedly connected to the inside of the fixed seat 301, two rotating wheels 303 are provided, one of which is fixedly connected to the output end of the lifting motor 302, the two ends of the inner side of the driving chain 304 are in contact with the outer edge of the corresponding rotating wheel 303, the lower end of the lifting screw 305 is fixedly connected to the axis of the rotating wheel 303, one end of the lifting block 306 is fixedly connected to the mounting seat 201 at the upper end, and the inner part of the lifting block 306 is threadedly connected to the outer edge of the lifting screw 305; The corresponding rotating wheel 303 is driven to rotate by the rotation of the lifting motor 302. At this time, the rotation of the rotating wheel 303 transmits power to the other rotating wheel 303 through the driving chain 304, thereby realizing the rotation of the two rotating wheels 303. The rotation of the rotating wheel 303 drives the lifting screw 305 to rotate, and the rotation of the lifting screw 305 drives the threaded lifting block 306 to move in the vertical direction. The movement of the lifting block 306 drives the corresponding mounting seat 201 to move in the vertical direction, thereby changing the distance between the upper and lower polishing parts 2 to adapt to wooden products of different sizes.

[0030] See also Figures 1 to 5 as well as Fig.10 As shown, the pushing portion 5 includes a pushing frame 501, a pushing motor 502, a pushing roller 503, a pushing belt 504, a sliding plate 505, a driven roller 506 and an elastic pushing member 507. The pushing frame 501 is fixedly connected to the support seat 1, the pushing motor 502 is fixedly connected to the inside of the pushing frame 501, two pushing rollers 503 are provided, and the two pushing rollers 503 are rotatably set at the two ends of the pushing frame 501 respectively, the two ends of the inner side of the pushing belt 504 are in contact with one end of the pushing roller 503, two sliding plates 505 are provided, and the lower ends of the two sliding plates 505 are matched with the upper ends of the pushing roller 503, the driven roller 506 is rotatably set at the lower end of the sliding plate 505, and the elastic pushing member 507 is set between the sliding plate 505 and the pushing frame 501.

[0031] The push motor 502 drives the push roller 503 at the output end to rotate, and the rotation of the push roller 503 drives the push belt 504 to rotate, thereby driving another push roller 503 to rotate at the same speed. At the same time, the rotation of the push roller 503 drives the contacted wooden products to move, thereby realizing the transportation of the wooden products; At this time, the sliding plate 505 is squeezed by the elastic pushing member 507, so that the sliding plate 505 applies pressure in the direction of the pushing roller 503, thereby increasing the contact pressure between the wooden product and the surface of the pushing roller 503 and the driven roller 506, ensuring the fixation of the wooden product.

[0032] See also Figures 1 to 5 As shown, the outer edges of the push roller 503 and the driven roller 506 are provided with a rubber layer, and the rubber layer further increases the friction between the wooden products and the surfaces of the push roller 503 and the driven roller 506 to ensure the transportation of the wooden products.

[0033] See also Fig.10 As shown, the upper end of the outer edge of the push roller 503 is horizontally matched with the polishing belt 202 at the bottom, so that the push roller 503 horizontally transports the wooden product when it rotates, and the lower surface of the horizontally transported wooden product contacts the corresponding polishing belt 202, so that the polishing belt 202 polishes the lower surface of the wooden product.

[0034] The working principle of the present invention is as follows: Specifically, when a wooden product needs to be polished, the corresponding polishing part 2 is first driven by the lifting part 3 to move in a vertical direction, so as to adjust the distance between the upper and lower parts of the polishing part 2 to adapt to wooden products of different specifications; At the same time, during the adjustment of the upper and lower parts of the polishing part 2, the upper polishing part 2 drives the corresponding fixed wheel 401 to move, and at this time the fixed wheel 401 drives the middle part of the transmission belt 404 to move, and at this time the transmission belt 404 drives the limiting seat 402 to slide along the guide rod 405. Since the limiting seat 402 is subjected to the extrusion force of the elastic extrusion member 406, the limiting seat 402 drives the limiting wheel 403 to always contact the transmission belt 404, so that the transmission belt 404 is always in a straight state, thereby ensuring the power transmission of the transmission belt 404; The output end of the driving motor 407 drives the corresponding fixed wheel 401 to rotate, and the rotation of the fixed wheel 401 transmits power to another fixed wheel 401 through the transmission belt 404. The two rotating fixed wheels 401 drive the corresponding driving rods 205 to rotate, so that the upper and lower parts of the polishing part 2 rotate simultaneously; Then the end of the wood product that needs to be polished is first fixedly transported to the inside of the polishing part 2 through the pushing part 5 for friction polishing, ensuring that the pushing speed of the wood product is uniform, and at the same time, it can also prevent the wood product from being pushed by the polishing pressure of the polishing part 2.

[0035] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A grinding and polishing device for wood product processing, characterized in that: It comprises a support seat (1), the upper part of the support seat (1) is provided with a polishing part (2), the polishing part (2) is provided with an upper and lower part, and the upper and lower surfaces of the wooden product are frictionally polished by the polishing part (2) of the upper and lower parts; A lifting portion (3) is provided on one side of the polishing portion (2), and the lifting portion (3) is capable of moving the polishing portion (2) at the upper portion in a vertical direction, thereby changing the distance between the upper and lower portions of the polishing portion (2), thereby adapting to wooden products of different sizes; A transmission part (4) is provided on the other side of the polishing part (2), and the transmission part (4) can transmit power to the polishing parts (2) of the two parts for driving when the distance between the upper and lower parts of the polishing parts (2) changes; The upper part of the support seat (1) is provided with a pushing part (5), and the wooden product is fixed by the pushing part (5), and the wooden product is pushed into between the two polishing parts (2) for polishing; The transmission part (4) comprises a fixed wheel (401), a limiting seat (402), a limiting wheel (403), a transmission belt (404), a guide rod (405), an elastic extrusion member (406) and a driving motor (407), wherein two fixed wheels (401) are provided, and the two fixed wheels (401) are fixedly connected to the corresponding polishing part (2), the limiting seat (402) is slidably connected to the inside of the support seat (1), and two limiting wheels (403) are provided, and the two limiting wheels (40 3) are both rotatably connected to the inside of the limiting seat (402), the inside of the transmission belt (404) is in contact with the outer edges of the fixed wheel (401) and the limiting wheel (403), the guide rod (405) is fixedly arranged inside the support seat (1), the elastic extrusion member (406) is arranged between the limiting seat (402) and the support seat (1), the drive motor (407) is fixedly connected to the inside of the support seat (1), and the output end of the support seat (1) is fixedly connected to the corresponding fixed wheel (401).

2. The grinding and polishing equipment for wood product processing according to claim 1, characterized in that: The limiting wheel (403) is arranged between the two fixed wheels (401), and the limiting wheel (403) is squeezed and pulled by the limiting seat (402) so that the middle part of the transmission belt (404) is bent.

3. The grinding and polishing equipment for wood product processing according to claim 1, characterized in that: The polishing portion (2) comprises a mounting seat (201), a polishing belt (202), an extrusion plate (203), an elastic reset member (204), a driving rod (205), a fixing plate (206) and an elastic fixing member (207); the mounting seat (201) is fixedly connected to the corresponding supporting seat (1) and the lifting portion (3); the inner side of the polishing belt (202) is rotatably connected to the inside of the mounting seat (201); the extrusion plate (203) is slidably arranged at the lower end of the mounting seat (201); the elastic reset member (204) is arranged on the mounting seat (201) 1) and the extrusion plate (203), the driving rod (205) is rotatably arranged inside the mounting seat (201), and the outer edge of the driving rod (205) contacts the inner side of the polishing belt (202), one end of the driving rod (205) is fixedly connected to the axis of the fixed wheel (401), the fixing plate (206) is slidably arranged inside the mounting seat (201), and the lower end of the fixing plate (206) contacts the outer edge of the polishing belt (202), and the elastic fixing member (207) is arranged between the extrusion plate (203) and the mounting seat (201).

4. The grinding and polishing equipment for wood product processing according to claim 3 is characterized in that: A rotating ring (2011) is rotatably arranged inside the mounting seat (201), and the outer edge of the rotating ring (2011) is in contact with the inner side of the polishing belt (202).

5. The grinding and polishing equipment for wood product processing according to claim 3 is characterized in that: A plurality of squeezing rollers (2031) are rotatably arranged at the lower end of the squeezing plate (203), and the outer edges of the squeezing rollers (2031) are in contact with the inner sides of the polishing belt (202).

6. The grinding and polishing equipment for wood product processing according to claim 3 is characterized in that: Two fixed rollers (2061) are rotatably provided at the lower end of the fixed plate (206), and the two fixed rollers (2061) are matched with the upper end of the driving rod (205), and the outer edges of the fixed rollers (2061) are in contact with the polishing belt (202) at the driving rod (205).

7. The grinding and polishing equipment for wood product processing according to claim 1, characterized in that: The lifting part (3) comprises a fixed seat (301), a lifting motor (302), a rotating wheel (303), a driving chain (304), a lifting screw (305) and a lifting block (306); the fixed seat (301) is fixedly connected to the inside of the support seat (1); the lifting motor (302) is fixedly connected to the inside of the fixed seat (301); two rotating wheels (303) are provided, one of which is fixedly connected to the output end of the lifting motor (302); the two ends of the inner side of the driving chain (304) are in contact with the outer edge of the corresponding rotating wheel (303); the lower end of the lifting screw (305) is fixedly connected to the axis of the rotating wheel (303); one end of the lifting block (306) is fixedly connected to the mounting seat (201) at the upper end; and the inside of the lifting block (306) is threadedly connected to the outer edge of the lifting screw (305).

8. The grinding and polishing equipment for wood product processing according to claim 3 is characterized in that: The pushing portion (5) comprises a pushing frame (501), a pushing motor (502), a pushing roller (503), a pushing belt (504), a sliding plate (505), a driven roller (506) and an elastic pushing member (507); the pushing frame (501) is fixedly connected to the support seat (1); the pushing motor (502) is fixedly connected to the inside of the pushing frame (501); two pushing rollers (503) are provided, and the two pushing rollers (503) are rotatably arranged at two ends of the pushing frame (501), respectively; the two ends of the inner side of the pushing belt (504) are in contact with one end of the pushing roller (503); two sliding plates (505) are provided, and the lower ends of the two sliding plates (505) are matched with the upper ends of the pushing roller (503); the driven roller (506) is rotatably arranged at the lower end of the sliding plate (505); and the elastic pushing member (507) is arranged between the sliding plate (505) and the pushing frame (501).

9. The grinding and polishing equipment for wood product processing according to claim 8, characterized in that: The outer edges of the push roller (503) and the driven roller (506) are provided with a rubber layer.

10. The grinding and polishing equipment for wood product processing according to claim 8, characterized in that: The upper end of the outer edge of the pushing roller (503) is horizontally matched with the polishing belt (202) located below.

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