A conveying device for product polishing

Abstract

This invention relates to a conveying device for product polishing, comprising a frame on which a feeding mechanism, a positioning mechanism, and a gripping mechanism are mounted. The positioning mechanism is located at the discharge end of the feeding mechanism and is used to lift a luggage rack away from the feeding mechanism. The gripping mechanism is located above the positioning mechanism and includes a mechanical gripper, a lifting device for lifting the mechanical gripper, and a drive device for rotating the mechanical gripper. The drive device is a servo motor capable of rotating at a specified angle. The mechanical gripper is used to clamp the luggage rack located on the positioning mechanism. This device automatically feeds the luggage rack through the feeding mechanism, then positions the luggage rack and grips it with the mechanical gripper. The robotic arm can quickly pick up the luggage rack from the mechanical gripper, while the operator only needs to place the luggage rack on the feeding mechanism, reducing the operator's workload, increasing the speed at which the robotic arm grips the luggage rack, and improving the overall processing efficiency of the polishing process.

Description

Technical Field

[0001] The present invention relates to the field of luggage rack processing equipment, and more specifically, to a conveying device for product polishing. Background Art

[0002] At present, luggage racks are mainly processed with special cross-section profiles as raw materials, and are manufactured through bending, failure (I don't understand the meaning of failure), sawing, drilling, and painting processes. There are different luggage rack products for different models. During the production process of luggage racks, the luggage racks need to be processed. Some existing processing methods are to grind the luggage racks after grabbing them with a robot.

[0003] For example, a Chinese patent document with publication number "CN207415068U" and publication date of May 29, 2018 discloses a luggage rack grinding and polishing system, including a protective room and a workpiece positioning component installed in the protective room, a robot, a rough sanding component, a semi-fine sanding component, a fine sanding component, a rough polishing component and a fine polishing component, a multi-directional rotating clamp component is installed at the swing arm end of the robot, the workpiece positioning component is provided with a connecting component with a buffer function and a positioning frame assembly adapted to be installed with the workpiece, the connecting component is installed on the workpiece positioning component, and the positioning frame assembly and the multi-directional rotating clamp The tool parts are detachable and installable; a monitoring component is arranged outside the protection room, which can control the robot to clamp the positioning frame assembly and drive the workpiece installed on the positioning frame assembly to be connected to the coarse sanding component, the semi-fine sanding component, the fine sanding component, the rough polishing component, the fine polishing component and the workpiece positioning component in sequence, so that the workpiece can complete the loading process, the coarse sanding process, the semi-fine sanding process, the fine sanding process, the rough polishing process, the fine polishing process and the unloading process at one time; the workpiece positioning component, the robot, the coarse sanding component, the semi-fine sanding component, the fine sanding component, the rough polishing component and the fine polishing component are respectively connected to the monitoring component.

[0004] In the above technical solution, the workpiece needs to be fixed on the positioning frame assembly in order to load the workpiece and complete further processing. Since the workpiece has a certain weight and length, it causes certain difficulties for the staff and also leads to low efficiency of the entire process flow of the luggage rack. Summary of the invention

[0005] In order to overcome the problems of difficulty and low efficiency in loading luggage racks in the above-mentioned prior art, the present invention provides a conveying device for product polishing, which completes automatic loading and fixing of the luggage rack and is convenient for grasping by a robot.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a conveying device for product polishing, including a frame, on which a feeding mechanism for conveying a luggage rack, a positioning mechanism for fixing the position of the luggage rack and a clamping mechanism for grabbing the luggage rack are provided; the positioning mechanism is arranged at the discharge end of the feeding mechanism; the positioning mechanism is used to drive the luggage rack to lift and leave the feeding mechanism; the clamping mechanism is arranged above the positioning mechanism, including a mechanical claw, a lifting device for driving the mechanical claw to lift and lower, and a driving device for driving the mechanical claw to rotate; the mechanical claw is used to clamp the luggage rack located on the positioning mechanism.

[0007] In the above technical solution, the staff puts the luggage rack to be polished into the feeding end of the feeding mechanism. At this time, the polished surface of the luggage rack faces upward. The feeding mechanism transports the luggage rack to the side of the discharging end, and the positioning mechanism lifts the luggage rack to make the luggage rack separate from the feeding mechanism. The lifting device of the clamping mechanism drives the mechanical claw to descend to the luggage rack, and then the lifting device resets after the mechanical claw clamps the luggage rack. The driving device drives the mechanical claw to rotate 90 degrees, so that the polished surface of the luggage rack can face the side of the mechanical claw, and the gripping surface can face the manipulator. In the subsequent polishing process, the manipulator grabs the luggage rack on the mechanical claw, and the polished surface of the luggage rack faces outward, and can be directly polished. In the above scheme, the lifting device can be a cylinder, a hydraulic cylinder or other mechanism. The driving device can be a rotary cylinder, a motor, a steering gear or other mechanism.

[0008] Preferably, the positioning mechanism also includes a moving plate slidably connected to the frame, a pushing device driving the moving plate to move, a first positioning assembly and a second positioning assembly, the first positioning assembly and the second positioning assembly both include a positioning pin, a limit block and a lifting device, the positioning pin and the limit block are mounted on a fixed plate, and the lifting device drives the fixed plate to rise; the first positioning assembly and the second positioning assembly are both mounted on the moving plate. The luggage rack is divided into left and right parts, and there are slight differences in the structure of the left and right parts, such as the position of the process holes and the surface curve. If the left and right parts are not distinguished, the subsequent polishing process will be affected. The first positioning assembly and the second positioning assembly are used to position the left and right parts respectively, and the difference between the two is that the positions of the positioning pins are different. The principle of positioning is: according to whether the luggage rack currently being processed is a left or right piece, the moving plate is pushed by the pushing device to move so that the corresponding positioning component is located on the work station; when the luggage rack is transported to the discharge end by the feeding mechanism, the lifting device drives the fixed plate to rise, so that the positioning pin and the limit block rise, the luggage rack falls into the limit block, and the positioning pin is inserted into the process hole of the luggage rack to realize the positioning of the luggage rack for easy grasping by the clamping mechanism.

[0009] Preferably, the rack is provided with a detection component on one side of the feeding end of the feeding mechanism, and the detection component is used to detect the process hole of the luggage rack. The detection component can be a detection pin that can be inserted into the process hole or an infrared sensor that can sense the process hole. If it is set that the process hole of the left piece can be sensed by the infrared sensor or can be inserted by the detection pin, then when the infrared sensor and the detection pin cannot detect the process hole, it proves that the luggage rack is the right piece, thereby reminding the staff to put the left and right pieces of the luggage rack in the wrong place to avoid affecting the subsequent automatic polishing process.

[0010] Preferably, width adjustment mechanisms are provided on both sides of the frame, including a slide module and a baffle installed on the frame; the slide module includes a sliding bar and a pushing mechanism for pushing the sliding bar to perform linear motion, and the baffle is installed on the sliding bar. In order to prevent the detection component from being unable to perform the detection function normally due to excessive position deviation when the staff places the luggage rack on the feeding mechanism, the sliding bar is moved to a position close to the center by the pushing mechanism, and the width of the baffles on both sides is within a suitable range, which can ensure that the detection component can perform the normal detection function after the luggage rack is placed arbitrarily, and at the same time it will not be too small to make the luggage rack difficult to place. According to the different sizes of the luggage rack, the width adjustment mechanism is adjusted so that the device can be used for conveying luggage racks of different models. The pushing mechanism can be electric or manual. The electric form can be an electric push rod or a combination of a screw rod and a motor, and the manual form can be a manual push rod or a combination of a screw rod and a handwheel.

[0011] Preferably, the width adjustment mechanism further includes a plurality of guide rods connected to the slide bar and arranged on the frame. The pushing mechanism is a hand wheel and a screw rod connected to the hand wheel, and the slide bar is connected to the screw rod and moves linearly along the screw rod. When the baffle position needs to be adjusted, the corresponding hand wheel is turned to rotate the screw rod, and the slide bar is threadedly connected to the screw rod, and moves linearly along the screw rod under the action of the guide rod, thereby finally achieving the adjustment of the baffle.

[0012] Preferably, a cylinder is provided on the sliding bar of the width adjustment mechanism on one side to push the baffle to move on the sliding bar. In order to facilitate the staff to load materials, the distance between the baffles on both sides is greater than the length of the luggage rack, so the luggage rack may deviate to the left or right, which makes it difficult for the positioning mechanism to complete the positioning, and the positioning pin may not be aligned with the process hole of the luggage rack. The baffle is moved a second time by the cylinder, and the baffle pushes the luggage rack to fit with the baffle on the other side, so as to achieve the standardization of the luggage rack position and ensure that the positioning pin can be inserted into the process hole.

[0013] Preferably, the feeding mechanism comprises a conveyor chain and a first driving motor driving the conveyor chain, and a positioning block is provided on the conveyor chain. The conveyor chain comprises two parallel chains, and the staff ensures that the luggage rack can be stably transported on the conveyor chain by placing the luggage rack on the positioning block.

[0014] Preferably, the positioning block and the limiting block have the same structure, and are both provided with grooves for engaging with the convex strips of the luggage rack. The luggage rack is provided with convex strips on both sides, and after the grooves of the limiting block and the positioning block cooperate with the convex strips, the luggage rack will not roll over in the limiting block and the positioning block, and the transmission of the luggage rack is more stable, which is convenient for subsequent processing.

[0015] Preferably, it also includes a material unloading conveyor belt installed on the frame and located above the feeding mechanism, and a second driving motor that drives the material unloading conveyor belt to operate. After completing the processing of the luggage rack, the robot can place the luggage rack on the material unloading conveyor belt, and at the same time complete the unloading of the luggage rack through the conveying device, so that the function of the device is more comprehensive. Moreover, the material unloading conveyor belt is close to the clamping mechanism. With this arrangement, after the robot puts down the polished luggage rack, it only needs to move a short distance to pick up the luggage rack to be polished on the clamping mechanism. Since the polished luggage rack does not need to be positioned or limited, it only needs to be transported by the conveyor belt, which reduces the action and difficulty of the robot putting down the luggage rack.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the device automatically feeds the luggage rack through the feeding mechanism, and then grabs the luggage rack through the mechanical claw after positioning the luggage rack. The robot can quickly take the luggage rack on the mechanical claw, and the staff only needs to put the luggage rack on the feeding mechanism, which reduces the work difficulty of the staff, speeds up the speed of the robot grabbing the luggage rack, and can improve the processing efficiency of the entire polishing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a conveying device for product polishing of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the positioning mechanism of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the width adjustment mechanism of the present invention;

[0021] Figure 5 yes Figure 1 A partial enlarged view of position A;

[0022] Figure 6 It is a structural schematic diagram of another embodiment of a conveying device for product polishing of the present invention. DETAILED DESCRIPTION

[0023] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0026] Example 1

[0027] like Figure 1-5 The embodiment of a conveying device for product polishing is shown, including a frame 1, on which a feeding mechanism 2 for conveying a luggage rack, a positioning mechanism 3 for fixing the position of the luggage rack, and a clamping mechanism 4 for grabbing the luggage rack are arranged; the positioning mechanism 3 is arranged at the discharge end of the feeding mechanism 2; the positioning mechanism 3 includes a mechanism for driving the luggage rack to be lifted and leave the feeding mechanism 2; the clamping mechanism 4 is arranged above the positioning mechanism 3, including a mechanical claw 401, a lifting device 402 for driving the mechanical claw 401 to rise and fall, and a driving device 403 for driving the mechanical claw 401 to rotate, and the driving device 403 is a steering gear that can rotate a specified angle; the mechanical claw 401 is used to clamp the luggage rack located on the positioning mechanism 3. The mechanical claw 401 is a pneumatic mechanical claw 401, which is a commonly used mechanical mechanism component in the art and is not described here. In this embodiment, in order to enable the clamping mechanism 4 to grab the luggage rack more stably, two mechanical claws 401 are arranged, but it is not limited to two, and those skilled in the art can increase them as needed.

[0028] Specifically, in this embodiment, the mechanical claw 401 and the driving device 403 are both mounted on a mounting frame 404, wherein the mounting frame 404 is provided with a rotating shaft 405, and the mechanical claw 401 is mounted on the rotating shaft 405, and the driving device 403 drives the rotating shaft 405 to rotate, thereby driving 401 to rotate. The lifting device 402 is connected to the mounting frame 404 to drive the entire mounting frame 404 to move.

[0029] Among them, the positioning mechanism 3 includes a moving plate 301 slidably connected to the frame 1, a pushing device 302 driving the moving plate 301 to move, a first positioning assembly 303 and a second positioning assembly 304, the first positioning assembly 303 and the second positioning assembly 304 both include a positioning pin 305, a limit block 306 and a lifting device 307, the positioning pin 305 and the limit block 306 are installed on a fixed plate, the lifting device 307 drives the fixed plate to rise, and the lifting device 307 is a cylinder; the first positioning assembly 303 and the second positioning assembly 304 are both installed on the moving plate 301. The luggage rack is divided into left and right parts, and there are some differences in the structure of the left and right parts, such as the position of the process hole and the surface curve. If the left and right parts are not distinguished, the subsequent polishing process will be affected. The first positioning assembly 303 and the second positioning group are used to position the left and right parts respectively, and the difference between the two is that the position of the positioning pin 305 is different. The principle of positioning is: according to whether the luggage rack currently being processed is a left piece or a right piece, the moving plate 301 is pushed by the pushing device 302 to move, so that the corresponding positioning component is located at the work station. When the luggage rack is transported to the discharge end by the feeding mechanism 2, the lifting device 307 drives the fixed plate to rise, so that the positioning pin 305 and the limit block 306 rise, and the luggage rack falls into the limit block 306. The positioning pin 305 is inserted into the process hole of the luggage rack to achieve the positioning of the luggage rack, so as to facilitate the grasping of the clamping mechanism 4. In this embodiment, two positioning mechanisms 3 are provided, which are respectively located on both sides of the feeding mechanism 2. The positioning mechanism 3 positions the luggage rack from both sides, making the luggage rack more stable.

[0030] Specifically, the rack 1 is provided with a detection component 5 at one side of the feeding end of the feeding mechanism 2, and the detection component 5 is used to detect the process holes of the luggage rack. The detection component 5 is an infrared sensor. If the process holes of the left piece are set to be sensed by the infrared sensor, then when the infrared sensor cannot detect the process holes, it proves that the luggage rack is a right piece, thereby reminding the staff to put the left and right pieces of the luggage rack in the wrong place, so as to avoid affecting the subsequent automatic polishing process.

[0031] In this embodiment, width adjustment mechanisms 6 are provided on both sides of the rack 1, including a slide module and a baffle 601 installed on the rack 1; the slide module includes a slide bar 602 and a pushing mechanism 603 for pushing the slide bar 602 to make a linear motion, and the baffle 601 is installed on the slide bar 602. In order to prevent the staff from placing the luggage rack on the feeding mechanism 2, the position deviation is too large, resulting in the detection component 5 being unable to perform the detection function normally, the slide bar 602 is moved to a position close to the center by the pushing mechanism 603, and the width of the baffles 601 on both sides is within a suitable range, which can ensure that the detection component 5 can perform the normal detection function after the luggage rack is placed arbitrarily, and at the same time it will not be too small to make it difficult to place the luggage rack. According to the different sizes of the luggage rack, the width adjustment mechanism 6 is adjusted so that the device can be used for the transportation of luggage racks of different models.

[0032] Among them, a cylinder 604 is provided on the sliding bar 602 of the width adjustment mechanism 6 on one side to push the baffle 601 to move on the sliding bar 602. In order to facilitate the staff to load materials, the distance between the baffles 601 on both sides is greater than the length of the luggage rack, so the luggage rack may deviate to the left or right, which makes it difficult for the positioning mechanism 3 to complete the positioning, and the positioning pin 305 may not be aligned with the process hole of the luggage rack. The baffle is moved twice by the cylinder 604, and the baffle pushes the luggage rack to fit with the baffle on the other side, so as to achieve the standardization of the luggage rack position and ensure that the positioning pin 305 can be inserted into the process hole.

[0033] In addition, the feeding mechanism 2 includes a conveyor chain 201 and a first driving motor 202 for driving the conveyor chain 201 to operate, and a positioning block 203 is provided on the conveyor chain 201. The conveyor chain 201 includes two parallel chains, and the staff ensures that the luggage rack can be stably transported on the conveyor chain 201 by placing the luggage rack on the positioning block 203. The positioning block 203 and the limit block 306 have the same structure, and are both provided with grooves for engaging with the convex strips of the luggage rack. There will be convex strips on both sides of the luggage rack. After the limit block 306 and the positioning block 203 have grooves that engage with the convex strips, the luggage rack will not roll over in the limit block 306 and the positioning block 203, and the transmission of the luggage rack will be more stable, which is convenient for subsequent processing procedures.

[0034] like Figure 4As shown, the width adjustment mechanism 6 also includes a plurality of guide rods 605 connected to the slide bar 602 and arranged on the frame 1. The pushing mechanism 603 is a hand wheel 6031 and a screw rod 6032 connected to the hand wheel 6031. The slide bar 602 is connected to the screw rod 6032 and moves linearly along the screw rod 6032. When the position of the baffle 601 needs to be adjusted, the corresponding hand wheel 6031 is rotated to rotate the screw rod 6032. The slide bar 602 is threadedly connected to the screw rod 6032 and moves linearly along the screw rod 6032 under the action of the guide rod 605, and finally the baffle 601 is adjusted.

[0035] The working principle or workflow of this embodiment is as follows: the width adjustment mechanism 6 is adjusted according to the model of the luggage rack, and the pushing device 302 pushes the corresponding first positioning component 303 or second positioning component 304 to the discharge end of the feeding mechanism 2 according to whether the luggage rack to be polished is a left piece or a right piece. The staff puts the luggage rack to be polished into the feeding end of the feeding mechanism 2 and limits the luggage rack through the limiting block 306. At this time, the polishing surface of the luggage rack faces upward, and the feeding mechanism 2 transports the luggage rack to the side of the discharge end. The lifting device 307 drives the positioning pin 305 and the positioning block 203 to rise and lift the luggage rack. At this time, the positioning pin 305 is inserted into the process hole of the luggage rack, and the positioning block 203 supports the luggage rack, so that the luggage rack is separated from the feeding mechanism 2 and positioned. The lifting device 402 of the clamping mechanism 4 drives the mechanical claw 401 to descend to the luggage rack on the positioning mechanism 3, and then after the luggage rack is clamped by the mechanical claw 401, the lifting device 402 is reset, and the driving device 403 drives the mechanical claw 401 to rotate 90 degrees, so that the polished surface of the luggage rack can face the side of the mechanical claw 401, and the gripping surface can face the manipulator. In the subsequent polishing process, the manipulator grabs the luggage rack on the mechanical claw 401, and the polished surface of the luggage rack faces outward, and can be directly polished.

[0036] The beneficial effects of this embodiment are as follows: the device automatically feeds the luggage rack via the feeding mechanism 2, and then grabs the luggage rack via the mechanical claw 401 after positioning the luggage rack. The robot arm can quickly take the luggage rack on the mechanical claw 401, and the staff only needs to place the luggage rack on the feeding mechanism 2, thereby reducing the staff's work difficulty, speeding up the speed at which the robot arm grabs the luggage rack, and improving the processing efficiency of the entire polishing process.

[0037] Example 2

[0038] Another embodiment of a conveying device for product polishing, the difference between this embodiment and embodiment 1 is that, Figure 6As shown, it also includes a feeding conveyor belt 7 installed on the frame 1 and located above the feeding mechanism 2, and a second driving motor 8 that drives the feeding conveyor belt 7. After the luggage rack is processed, the robot can place the luggage rack on the feeding conveyor belt 7, and at the same time, the luggage rack is unloaded through the conveying device, making the function of the device more comprehensive. Moreover, the feeding conveyor belt 7 is close to the clamping mechanism 4. With this arrangement, after the robot puts down the polished luggage rack, it only needs to move a short distance to pick up the luggage rack to be polished on the clamping mechanism 4. Since the polished luggage rack does not need to be positioned or limited, it only needs the conveyor belt 7 for transportation, which reduces the action and difficulty of the robot putting down the luggage rack.

[0039] Other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 1 or Embodiment 2.

[0040] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A conveying device for product polishing, comprising a frame (1), characterized in that: The frame (1) is provided with a feeding mechanism (2) for conveying a luggage rack, a positioning mechanism (3) for fixing the position of the luggage rack, and a clamping mechanism (4) for grabbing the luggage rack; the positioning mechanism (3) is arranged at the discharge end of the feeding mechanism (2); the positioning mechanism (3) is used to drive the luggage rack to be lifted and leave the feeding mechanism (2); the clamping mechanism (4) is arranged above the positioning mechanism (3), and comprises a mechanical claw (401), a lifting device (402) for driving the mechanical claw (401) to rise and fall, and a driving device (403) for driving the mechanical claw (401) to rotate; the mechanical claw (401) is used to clamp the luggage rack located on the positioning mechanism (3); The positioning mechanism (3) further comprises a moving plate (301) slidably connected to the frame (1), a pushing device (302) for driving the moving plate (301) to move, a first positioning component (303) and a second positioning component (304), wherein the first positioning component (303) and the second positioning component (304) both comprise a positioning pin (305), a limit block (306) and a lifting device (307), wherein the lifting device (307) drives the positioning pin (305) and the limit block (306) to rise; the first positioning component (303) and the second positioning component (304) are both mounted on the moving plate (301); The frame (1) is provided with a detection component (5) at one side of the feeding end of the feeding mechanism (2), and the detection component (5) is used to detect the process hole of the luggage rack; Width adjustment mechanisms (6) are provided on both sides of the frame (1); the width adjustment mechanism (6) comprises a slide module and a baffle (601) mounted on the frame (1); the slide module comprises a slide bar (602) and a pushing mechanism (603) for pushing the slide bar (602) to perform linear motion, and the baffle (601) is mounted on the slide bar (602); The width adjustment mechanism (6) further comprises a plurality of guide rods (605) arranged on the frame (1) and connected to the sliding bar (602); a cylinder (604) is arranged on the sliding bar (602) of the width adjustment mechanism (6) on one side to push the baffle (601) to move on the sliding bar (602).

2. A conveying device for product polishing according to claim 1, characterized in that: The pushing mechanism (603) is a hand wheel (6031) and a screw rod (6032) connected to the hand wheel (6031), and the sliding bar (602) is connected to the screw rod (6032) and moves linearly along the screw rod (6032).

3. A conveying device for product polishing according to claim 1, characterized in that: The feeding mechanism (2) comprises a conveying chain (201) and a first driving motor (202) for driving the conveying chain (201) to operate, and a positioning block (203) is provided on the conveying chain (201).

4. A conveying device for product polishing according to claim 3, characterized in that: The positioning block (203) and the limiting block (306) have the same structure and are both provided with a groove for engaging with the convex strip of the luggage rack.

5. A conveying device for product polishing according to any one of claims 1 to 4, characterized in that: It also includes a material unloading conveyor belt (7) installed on the frame (1) and located above the feeding mechanism (2), and a second driving motor (8) for driving the material unloading conveyor belt (7) to operate.

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