Automatic feeding device for wooden furniture processing

Abstract

The utility model discloses an automatic feeding device for wood furniture processing, and belongs to the technical field of wood board processing. Comprising a workbench, an electric telescopic rod is arranged on one side of the top end of the workbench, the electric telescopic rod is used for adjusting the position of a measuring baffle and used for adjusting the cutting size of a wood plate to be machined, and a plate pushing mechanism is arranged on one side of the top end of the workbench and used for pushing the wood plate to advance. And the chip brushing mechanism is arranged on one side of the top end of the workbench and used for cleaning wood chips at the top end of the workbench, the board pushing mechanism is arranged and can automatically push a wood board to advance, the danger of workers is reduced, the board pushing mechanism drives the chip brushing mechanism to clean the wood chips at the top end of the workbench when moving, and the working efficiency is improved. And the next cutting work can be conveniently carried out.

Description

Technical Field

[0001] The present application relates to the technical field of wood board processing, and more specifically, to an automatic feeding device for processing wooden furniture. Background Art

[0002] Wooden furniture is made of wood as the main material. Wood boards are widely used to make wooden furniture. Wood boards are processed into a state and shape that can be used to make furniture through processes such as cutting and polishing.

[0003] In the related art, the cutting process is performed by manually pushing the wooden board or indirectly pushing the wooden board with a push rod. For example, the patent with the prior art publication number CN215702364U provides a wooden board cutting device, which can push the wooden board to be processed forward by the setting of a moving rod and a push block, so that it can be processed and cut by a cutting blade.

[0004] Although the above-mentioned prior art solution can achieve the effect of pushing the wooden board to be processed forward for cutting through the setting of the moving rod and the pushing block, it still has the following defects: when cutting, it is necessary to manually push the moving rod and the pushing block to move the wooden board until the cutting is completed, which makes it more dangerous for the workers and reduces the safety of the staff.

[0005] In view of this, we propose an automatic feeding device for wooden furniture processing. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The utility model provides an automatic feeding device for processing wooden furniture. When cutting, it is necessary to manually push a moving rod and a pushing block to drive the wooden board to move until the cutting is completed, which is dangerous for the workers and reduces the safety of the workers.

[0008] 2. Technical solution

[0009] To solve the above problems, the embodiment of the present application provides an automatic feeding device for wooden furniture processing, comprising a workbench;

[0010] An electric telescopic rod, which is arranged on one side of the top of the workbench and is used to adjust the position of the measuring baffle and the cutting size of the wood board to be processed;

[0011] A push plate mechanism, which is arranged on one side of the top of the workbench and is used to push the wooden board forward;

[0012] A chip brushing mechanism, which is arranged on one side of the top of the workbench and is used to clean the wood chips on the top of the workbench;

[0013] An adjusting mechanism is arranged on one side of the top end of the workbench and is used for conveying the wooden board to be processed.

[0014] Furthermore, a cutting machine is provided at the bottom end of the workbench, two slide grooves are provided at the top end of the workbench, a conveyor belt is embedded in the top end of the workbench, the wooden board to be processed is provided at the top end of the conveyor belt, anti-slip grooves are provided on the outer side of the conveyor belt, a protective shell is fixedly provided on one side of the top end of the workbench, a control panel is provided on one side of the workbench, the conveyor belt is used to convey the wooden board to be processed, the staff can place the wooden board to be processed on the top end of the conveyor belt, which can be prepared for the next cutting, thereby improving work efficiency and reducing the risk of workers.

[0015] Furthermore, a sliding bracket is fixedly provided on one side of the workbench, the electric telescopic rod is fixedly provided on one side of the sliding bracket, the measuring baffle is slidably provided on the inner top end of the sliding bracket, the measuring baffle is fixedly provided on one end of the electric telescopic rod, a laser rangefinder is provided on the inner side of the sliding bracket, the electric telescopic rod and the laser rangefinder are electrically connected to the control panel, and the cutting size is input through the control panel. When the laser detector measures that the measuring baffle moves to the specified size, the electric telescopic rod will stop, so as to facilitate the adjustment of the cutting size.

[0016] Furthermore, the pushing plate mechanism includes a pushing motor, a driving end of the pushing motor is fixedly provided with two rotating gears, the outer sides of the rotating gears are meshed with moving tooth plates, the top end of the moving tooth plates is slidably provided with a fixed frame, and a pushing plate is fixedly provided on one side of the bottom end of the moving tooth plate. The pushing motor and the fixed frame are fixedly provided on the top of the workbench, and the rotating gears are rotatably provided on the inner side of the fixed frame. The setting of the pushing plate mechanism can automatically push the wooden board forward, thereby reducing the danger to workers.

[0017] Furthermore, the brush mechanism is symmetrically arranged with two groups, and the brush mechanism includes a driven gear, a large pulley is fixedly arranged at one end of the driven gear, a fixed rack is meshed on the outer side of the driven gear, and the fixed rack is fixedly arranged on the bottom end of the workbench, the large pulley is connected to the small pulley through a belt transmission, and a connecting leg is rotatably arranged on the same end of the large pulley and the small pulley, a connecting support plate is fixedly arranged on one side of the connecting leg, and the connecting support plate is fixedly arranged on one side of the push plate, and the connecting leg is slidably arranged on the inner side of the slide groove, and a roller brush is fixedly arranged between the small pulleys, and the roller brush is rotatably connected to the connecting leg. When the push plate mechanism moves, it drives the brush mechanism to clean the wood chips on the top of the workbench, so as to facilitate the next cutting work.

[0018] Furthermore, the adjusting mechanism includes a moving motor, a screw rod is fixedly provided at the driving end of the moving motor, a moving carrier is threadedly connected to the outer side of the screw rod, a fixed wheel frame is rotatably provided at the other end of the moving carrier, a plurality of auxiliary wheels are rotatably provided on the inner side of the fixed wheel frame, a stabilizing slide bar is symmetrically fixedly provided on one side of the moving carrier, the moving carrier is slidably provided on the outer side of the stabilizing slide bar, a fixed plate is fixedly provided on the other end of the stabilizing slide bar, the moving motor is fixedly provided on one side of the fixed plate, and the fixed wheel frame is fixedly provided on the top side of the conveyor belt. The adjusting mechanism can clamp the wooden board to be processed without affecting the movement of the wooden board to be processed, thereby preventing the wooden board to be processed from being offset and improving the accuracy of cutting the wooden board to be processed.

[0019] Furthermore, the fixed plate is fixedly arranged on the top of the workbench, a movable wheel frame is slidably arranged on the inner side of the movable carrier, a plurality of extrusion wheels are rotatably arranged on the inner side of the movable wheel frame, a spring and a stable telescopic rod are fixedly arranged on one side of the movable wheel frame, the spring and the stable telescopic rod are fixedly arranged on one side of the movable carrier, the movable carrier and the movable wheel frame do not contact with the workbench and the conveyor belt, so as to facilitate clamping the wooden board to be processed during transportation and improve the accuracy of cutting.

[0020] 3. Beneficial effects

[0021] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0022] 1. The present application sets a push plate mechanism, which can automatically push the wooden board forward, reducing the danger to workers. When the push plate mechanism moves, it drives the brush mechanism to clean the wood chips on the top of the workbench, making it easier for the next cutting work.

[0023] 2. In the present application, the conveyor belt and the adjusting mechanism are arranged so that the conveyor belt can transport the wooden board to be processed. The wooden board to be processed can be placed on the top of the conveyor belt. The adjusting mechanism can clamp the wooden board to be processed without affecting the movement of the wooden board to be processed, thereby preventing the wooden board to be processed from shifting and improving the accuracy of cutting the wooden board to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding device for wooden furniture processing disclosed in a preferred embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the left and right axonometric structure of an automatic feeding device for wooden furniture processing disclosed in a preferred embodiment of the present application;

[0026] Figure 3A schematic diagram of the structure of a disassembled chip brush mechanism and a partial push plate mechanism in an automatic feeding device for wooden furniture processing disclosed in a preferred embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the combined structure of a workbench, a conveyor belt and an adjustment mechanism in an automatic feeding device for wooden furniture processing disclosed in a preferred embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of the disassembled structure of a moving carrier, a spring, a stabilizing telescopic rod, an extruding wheel and a moving wheel frame in an automatic feeding device for processing wooden furniture disclosed in a preferred embodiment of the present application;

[0029] Explanation of the numbers in the figure: 1. workbench; 101. cutting machine; 102. protective shell; 103. slideway; 104. conveyor belt; 105. wood board to be processed; 106. control panel; 2. sliding bracket; 201. electric telescopic rod; 202. measuring baffle; 3. push plate mechanism; 301. push motor; 302. rotating gear; 303. moving tooth plate; 304. push plate; 305. fixed frame; 4. brushing mechanism; 401. driven gear Wheel; 402, large pulley; 403, small pulley; 404, fixed rack; 405, connecting foot; 406, roller brush; 407, connecting support plate; 5, adjustment mechanism; 501, mobile motor; 502, screw rod; 503, stable slide rod; 504, mobile carrier; 505, fixed plate; 506, fixed wheel frame; 507, auxiliary wheel; 508, spring; 509, stable telescopic rod; 510, extrusion wheel; 511, mobile wheel frame. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 1 and Figure 2 , an automatic feeding device for wooden furniture processing, comprising a workbench 1;

[0032] An electric telescopic rod 201, which is arranged at one side of the top of the workbench 1, and is used to adjust the position of the measuring baffle 202, and is used to adjust the cutting size of the wood board 105 to be processed;

[0033] The push plate mechanism 3 is arranged at one side of the top of the workbench 1, and is used to push the wooden board forward;

[0034] A chip brushing mechanism 4 is provided at one side of the top of the workbench 1 and is used to clean the wood chips on the top of the workbench 1;

[0035] The adjusting mechanism 5 is arranged at one side of the top end of the workbench 1 , and the adjusting mechanism 5 is used for conveying the wooden board 105 to be processed.

[0036] Through the setting of the push plate mechanism 3, the setting of the push plate mechanism 3 can automatically push the wooden board forward, reducing the danger to workers, and the push plate mechanism 3 drives the brush mechanism 4 to clean the wood chips on the top of the workbench 1 when moving, so as to facilitate the next cutting work. The adjustment mechanism 5 can clamp the wooden board 105 to be processed without affecting the movement of the wooden board 105 to be processed, preventing the wooden board 105 to be processed from shifting, and improving the accuracy of cutting the wooden board 105 to be processed.

[0037] Reference Figure 1 and Figure 2 A cutting machine 101 is arranged at the bottom end of the workbench 1, two slide grooves 103 are arranged at the top of the workbench 1, a conveyor belt 104 is embedded in the top of the workbench 1, a wooden board 105 to be processed is arranged at the top of the conveyor belt 104, and anti-slip grooves are arranged on the outer side of the conveyor belt 104. A protective shell 102 is fixedly arranged on one side of the top of the workbench 1, and a control panel 106 is arranged on one side of the workbench 1.

[0038] The conveyor belt 104 is used to convey the wood board 105 to be processed. The staff can place the wood board 105 to be processed on the top of the conveyor belt 104 to prepare for the next cutting, thereby improving work efficiency and reducing the risk of workers.

[0039] Reference Figure 1 and Figure 2 A sliding bracket 2 is fixedly provided on one side of the workbench 1, an electric telescopic rod 201 is fixedly provided on one side of the sliding bracket 2, a measuring baffle 202 is slidably provided on the inner top end of the sliding bracket 2, the measuring baffle 202 is fixedly provided on one end of the electric telescopic rod 201, a laser rangefinder is provided on the inner side of the sliding bracket 2, and the electric telescopic rod 201 and the laser rangefinder are electrically connected to the control panel 106.

[0040] The cutting size is input through the control panel 106. When the laser detector measures that the measuring baffle 202 moves to the specified size, the electric telescopic rod 201 will stop, so as to facilitate the adjustment of the cutting size.

[0041] Reference Figure 1 , Figure 2 and Figure 3The push plate mechanism 3 includes a push motor 301, and two rotating gears 302 are fixedly arranged at the driving end of the push motor 301. The outer sides of the rotating gears 302 are meshed with moving tooth plates 303. A fixed frame 305 is slidably arranged at the top of the moving tooth plate 303. A push plate 304 is fixedly arranged on one side of the bottom end of the moving tooth plate 303. The push motor 301 and the fixed frame 305 are fixedly arranged at the top of the workbench 1. The rotating gear 302 is rotatably arranged on the inner side of the fixed frame 305. The brush mechanism 4 is symmetrically arranged with two groups. The brush mechanism 4 includes a driven gear 401, and one end of the driven gear 401 is fixedly arranged with The large pulley 402 and the driven gear 401 are meshed with a fixed rack 404 on the outer side, and the fixed rack 404 is fixedly set at the bottom end of the workbench 1. The large pulley 402 is connected to the small pulley 403 through a belt. A connecting leg 405 is rotatably set on the same end of the large pulley 402 and the small pulley 403. A connecting support plate 407 is fixedly set on one side of the connecting leg 405. The connecting support plate 407 is fixedly set on one side of the push plate 304. The connecting leg 405 is slidably set on the inner side of the slide groove 103. A roller brush 406 is fixedly set between the small pulleys 403, and the roller brush 406 is rotatably connected to the connecting leg 405.

[0042] After the wood board 105 to be processed is transported to one side of the pushing plate 304 in the pushing plate mechanism 3, the pushing motor 301 in the pushing plate mechanism 3 is started to drive the rotating gear 302 to rotate, the rotation of the rotating gear 302 drives the moving tooth plate 303 to move, the movement of the moving tooth plate 303 drives the pushing plate 304 to move, the pushing plate 304 pushes the wood board 105 to be processed to move, and then the cutting machine 101 cuts the wood board 105 to be processed. If the position of the wood board 105 to be processed is not in place, the staff can make appropriate adjustments. The pushing plate 304 moves at the same time When the brush mechanism 4 is driven to move, the driven gear 401 rotates in cooperation with the fixed rack 404 during movement, and drives the large pulley 402 to rotate. The diameter of the large pulley 402 is larger than that of the small pulley 403. The large pulley 402 drives the small pulley 403 to rotate, and the small pulley 403 drives the roller brush 406 to rotate. The two sets of brush mechanisms 4 can ensure the stable rotation of the roller brush 406. The rotation of the roller brush 406 can clean the wood chips on the top of the workbench 1, reducing the impact on the next cutting work. There is no need for workers to push for dangerous operations, thereby improving the safety of workers.

[0043] Reference Figure 1 , Figure 4 and Figure 5The adjusting mechanism 5 includes a moving motor 501, a screw rod 502 is fixedly provided at the driving end of the moving motor 501, a moving carrier 504 is threadedly connected to the outer side of the screw rod 502, a fixed wheel frame 506 is rotatably provided at the other end of the moving carrier 504, a plurality of auxiliary wheels 507 are rotatably provided on the inner side of the fixed wheel frame 506, a stabilizing slide bar 503 is symmetrically fixedly provided on one side of the moving carrier 504, the moving carrier 504 is slidably provided on the outer side of the stabilizing slide bar 503, a fixing plate 505 is fixedly provided at the other end of the stabilizing slide bar 503, and the moving motor 501 is fixedly provided on On one side of the fixed plate 505, the fixed wheel frame 506 is fixedly arranged on one side of the top of the conveyor belt 104, the fixed plate 505 is fixedly arranged on the top of the workbench 1, the inner side of the movable carrier 504 is slidingly arranged with a movable wheel frame 511, the inner side of the movable wheel frame 511 is rotatably arranged with a plurality of extrusion wheels 510, one side of the movable wheel frame 511 is fixedly arranged with a spring 508 and a stabilizing telescopic rod 509, the spring 508 and the stabilizing telescopic rod 509 are fixedly arranged on one side of the movable carrier 504, and the movable carrier 504 and the movable wheel frame 511 are not in contact with the workbench 1 and the conveyor belt 104.

[0044] Start the moving motor 501 in the adjustment mechanism 5 to rotate the screw rod 502, thereby adjusting the distance between the moving carrier 504 and the fixed wheel frame 506, and the distance between the moving carrier 504 and the fixed wheel frame 506 is smaller than the width of the wooden board 105 to be processed, so that the auxiliary wheel 507 and the extrusion wheel 510 contact the two sides of the wooden board 105 to be processed, and at the same time the moving wheel frame 511 will move, and the spring 508 and the stable telescopic rod 509 will be compressed, so that the extrusion wheel 510 can cooperate with the auxiliary wheel 507 to clamp the wooden board 105 to be processed, and the conveyor belt 104 will drive the wooden board 105 to be processed to move, and at the same time the auxiliary wheel 507 and the extrusion wheel 510 will rotate to assist the wooden board 105 to be processed to move, prevent the wooden board 105 to be processed from being offset, and improve the accuracy of cutting.

[0045] Working principle: According to the different sizes of the wooden board, the adjusting mechanism 5 is adjusted, and the moving motor 501 in the adjusting mechanism 5 is started to rotate the screw rod 502, thereby adjusting the distance between the moving carrier 504 and the fixed wheel frame 506, and the distance between the moving carrier 504 and the fixed wheel frame 506 is smaller than the width of the wooden board 105 to be processed, so that the auxiliary wheel 507 and the extrusion wheel 510 contact the two sides of the wooden board 105 to be processed, and at the same time the moving wheel frame 511 will move, and the spring 508 and the stable telescopic rod 509 will be compressed, so that the extrusion wheel 510 can cooperate with the auxiliary wheel 507 clamps the wood board 105 to be processed, and the conveyor belt 104 drives the wood board 105 to be processed to move. At the same time, the auxiliary wheel 507 and the extrusion wheel 510 rotate to assist the wood board 105 to be processed to move, prevent the wood board 105 to be processed from shifting, and improve the accuracy of cutting. Before this, the size to be cut is adjusted by the electric telescopic rod 201, and the measuring baffle 202 moves closer to or away from the cutting machine 101. The cutting size is input through the control panel 106. When the laser detector measures that the measuring baffle 202 moves to the specified size, the electric telescopic rod 201 will The wood board 105 to be processed is stopped, and then it is transported to one side of the pushing plate 304 in the pushing plate mechanism 3, and the pushing motor 301 in the pushing plate mechanism 3 is started to drive the rotating gear 302 to rotate, and the rotation of the rotating gear 302 drives the moving tooth plate 303 to move, and the movement of the moving tooth plate 303 drives the pushing plate 304 to move, and the pushing plate 304 drives the wood board 105 to be processed to move, and then the cutting machine 101 cuts the wood board 105 to be processed. If the position of the wood board 105 to be processed is not in place, the staff can adjust it appropriately, and the pushing plate 304 drives the brush to remove the chips while moving. The mechanism 4 moves, and the driven gear 401 rotates in cooperation with the fixed rack 404 during movement, and drives the large pulley 402 to rotate. The diameter of the large pulley 402 is larger than that of the small pulley 403. The large pulley 402 drives the small pulley 403 to rotate, and the small pulley 403 drives the roller brush 406 to rotate. The two sets of brush mechanisms 4 can ensure the stable rotation of the roller brush 406. The rotation of the roller brush 406 can clean the wood chips on the top of the workbench 1, reducing the impact on the next cutting work, and the push plate 304 is arranged parallel to the conveyor belt 104, which is convenient for the transportation of the wooden board 105 to be processed.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic feeding device for wooden furniture processing, characterized in that: Include: Workbench (1); An electric telescopic rod (201), the electric telescopic rod (201) being arranged on one side of the top end of the workbench (1), the electric telescopic rod (201) being used to adjust the position of the measuring baffle (202), and being used to adjust the cutting size of the wood board (105) to be processed; A push plate mechanism (3), the push plate mechanism (3) being arranged on one side of the top end of the workbench (1), and the push plate mechanism (3) being used to push the wooden board forward; A chip brushing mechanism (4), the chip brushing mechanism (4) being arranged on one side of the top end of the workbench (1), the chip brushing mechanism (4) being used to clean wood chips on the top end of the workbench (1); An adjusting mechanism (5), wherein the adjusting mechanism (5) is arranged on one side of the top end of the workbench (1), and the adjusting mechanism (5) is used to convey the wooden board (105) to be processed.

2. The automatic feeding device for wooden furniture processing according to claim 1, characterized in that: A cutting machine (101) is arranged at the bottom end of the workbench (1), two slide grooves (103) are arranged at the top end of the workbench (1), a conveyor belt (104) is embedded in the top end of the workbench (1), the wood board (105) to be processed is arranged at the top end of the conveyor belt (104), and the outer side of the conveyor belt (104) is provided with anti-slip grooves, a protective shell (102) is fixedly arranged on one side of the top end of the workbench (1), and a control panel (106) is arranged on one side of the workbench (1).

3. The automatic feeding device for wooden furniture processing according to claim 1, characterized in that: A sliding bracket (2) is fixedly arranged on one side of the workbench (1); the electric telescopic rod (201) is fixedly arranged on one side of the sliding bracket (2); the measuring baffle (202) is slidably arranged on the inner top end of the sliding bracket (2); the measuring baffle (202) is fixedly arranged on one end of the electric telescopic rod (201); a laser rangefinder is arranged on the inner side of the sliding bracket (2); and the electric telescopic rod (201) and the laser rangefinder are electrically connected to a control panel (106).

4. The automatic feeding device for wooden furniture processing according to claim 1, characterized in that: The push plate mechanism (3) comprises a push motor (301), the driving end of the push motor (301) is fixedly provided with two rotating gears (302), the outer sides of the rotating gears (302) are meshed with movable tooth plates (303), the top end of the movable tooth plates (303) is slidably provided with a fixed frame (305), and a push plate (304) is fixedly provided on one side of the bottom end of the movable tooth plate (303), the push motor (301) and the fixed frame (305) are fixedly provided on the top end of the workbench (1), and the rotating gears (302) are rotatably provided on the inner side of the fixed frame (305).

5. The automatic feeding device for wooden furniture processing according to claim 1, characterized in that: The shavings brushing mechanism (4) is symmetrically arranged in two groups, and the shavings brushing mechanism (4) comprises a driven gear (401), one end of which is fixedly provided with a large pulley (402), the outer side of the driven gear (401) is meshed with a fixed rack (404), the fixed rack (404) is fixedly arranged at the bottom end of the workbench (1), the large pulley (402) is connected to the small pulley (403) through a belt, and the large pulley (402) and A connecting leg (405) is rotatably provided at the same end of the small pulley (403), a connecting support plate (407) is fixedly provided on one side of the connecting leg (405), the connecting support plate (407) is fixedly provided on one side of the pushing plate (304), the connecting leg (405) is slidably provided on the inner side of the slide groove (103), a rolling brush (406) is fixedly provided between the small pulleys (403), and the rolling brush (406) is rotatably connected to the connecting leg (405).

6. The automatic feeding device for wooden furniture processing according to claim 1, characterized in that: The adjusting mechanism (5) comprises a moving motor (501), a driving end of the moving motor (501) is fixedly provided with a screw rod (502), the outer side of the screw rod (502) is threadedly connected to a moving carrier (504), the other end of the moving carrier (504) is rotatably provided with a fixed wheel frame (506), the inner side of the fixed wheel frame (506) is rotatably provided with a plurality of auxiliary wheels (507), one side of the moving carrier (504) is symmetrically fixedly provided with a stabilizing slide bar (503), the moving carrier (504) is slidably provided on the outer side of the stabilizing slide bar (503), the other end of the stabilizing slide bar (503) is fixedly provided with a fixing plate (505), the moving motor (501) is fixedly provided on one side of the fixing plate (505), and the fixing wheel frame (506) is fixedly provided on one side of the top end of the conveyor belt (104).

7. The automatic feeding device for wooden furniture processing according to claim 6, characterized in that: The fixed plate (505) is fixedly arranged on the top of the workbench (1); a moving wheel frame (511) is slidably arranged on the inner side of the moving carrier (504); a plurality of extrusion wheels (510) are rotatably arranged on the inner side of the moving wheel frame (511); a spring (508) and a stabilizing telescopic rod (509) are fixedly arranged on one side of the moving carrier (504); the moving carrier (504) and the moving wheel frame (511) are not in contact with the workbench (1) and the conveyor belt (104).

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