Conveying device for door plate machining

Abstract

The invention provides a conveying device for door plate machining, and relates to the technical field of conveying devices, the conveying device comprises a plurality of conveying units, a lifting unit and a movable stacking unit, and the conveying units are sequentially provided with a door plate quality inspection mechanism and a mechanical sorting mechanism in the conveying direction of the conveying units. According to the door plate quality inspection mechanism and the mechanical sorting mechanism, the requirement for quality inspection in the conveying process is met, and meanwhile the adaptability of the output end of the conveying device is improved through the design of the lifting unit.

Description

Technical Field

[0001] The invention belongs to the technical field of conveying devices, and in particular relates to a conveying device for door panel processing. Background Art

[0002] Prior art publication number CN 209889609 U-type discloses a door panel conveying mechanism, including a support and a front and rear conveying device arranged on the support. The front and rear conveying device includes a conveying roller and a driving motor. The conveying roller is rotatably arranged on the support. The driving motor drives the conveying roller to rotate and is used to convey the door panel placed on the conveying roller forward. It also includes a left and right conveying device. The left and right conveying device includes a plurality of conveying units. The conveying unit includes a conveying frame and a synchronous belt. The conveying frame is arranged on the support and forms a vertical moving pair with the support. The synchronous belt is arranged on the conveying frame. The conveying motor is arranged on the conveying frame. The conveying motor drives the synchronous belt to convey in the length direction of the conveying roller. The support is provided with a lifting drive device for driving the conveying frame to move vertically between two adjacent conveying rollers. The beneficial effects are: the conveying direction of the door panel can be changed. Using it in the door panel processing production line can reduce the length of the production line and reduce the space and area occupied by the door panel processing production line. The door panel conveying mechanism lacks door panel quality inspection mechanism and sorting mechanism during the conveying process, and cannot perform quality inspection on the door panels during the conveying process. At the same time, due to the lack of a lifting unit at the tail end of the conveying mechanism, the height of the tail end of the conveying mechanism cannot be flexibly adjusted, and the adaptability of the output end is poor. Summary of the invention

[0003] The present invention provides a conveying device for door panel processing, which is used to solve at least one of the technical problems mentioned above.

[0004] In order to solve the above technical problems, the present invention discloses a conveying device for door panel processing, including a plurality of conveying units, a lifting unit and a movable stacking unit, wherein the plurality of conveying units are sequentially arranged with door panel quality inspection mechanisms and mechanical sorting mechanisms along their conveying directions.

[0005] Preferably, the conveying unit comprises a supporting leg, a conveying roller mounting frame is mounted on the supporting leg, and a plurality of conveying rollers are rotatably connected to the conveying roller mounting frame.

[0006] Preferably, the lifting unit comprises a lifting frame, a lifting assembly is arranged on the lifting frame, a lifting conveying roller mounting frame is installed at the working end of the lifting assembly, and a plurality of conveying rollers are installed on the lifting conveying roller mounting frame; An auxiliary over-conveying mechanism is arranged in front of the lifting frame, and a movable stacking unit is arranged in front of the auxiliary over-conveying mechanism.

[0007] Preferably, the lifting assembly includes a lifting drive cylinder, the lifting drive cylinder is fixedly connected to the lifting frame, the working end of the lifting drive cylinder is fixedly connected to a mounting block, the mounting block is fixedly connected to a lifting shaft, both ends of the lifting shaft are rotatably connected to pulleys, a connecting belt is installed on the pulley, one end of the connecting belt is fixedly connected to the lifting frame, and the other end of the connecting belt is fixedly connected to a lifting conveying roller mounting frame, and the lifting conveying roller mounting frame is slidably connected to the lifting frame up and down; The connecting belt includes a belt part and a chain part.

[0008] Preferably, the door panel quality inspection mechanism includes a sleeve column, the bottom of the sleeve column is slidably connected to the slide rail, the bottom of the sleeve column is rotatably connected to an electric drive gear, the inner wall of the slide rail is provided with a fixed rack, the electric drive gear and the fixed rack are meshed with each other, a square column is slidably connected up and down in the sleeve column, a lifting cylinder is fixedly connected in the sleeve column, the working end of the lifting cylinder is fixedly connected to the bottom of the square column, and a buffer elastic member is fixedly connected between the square column and the inner wall of the sleeve column; A door panel clamping assembly and an image acquisition assembly are installed on the square column. The image acquisition assembly is electrically connected to a door panel quality inspection and evaluation module, and the door panel quality inspection and evaluation module is electrically connected to a mechanical sorting mechanism.

[0009] Preferably, the door panel clamping assembly includes a rotating motor, which is fixedly connected in the square column. The working end of the rotating motor is fixedly connected to a hydraulic cylinder, and the working end of the hydraulic cylinder is fixedly connected to a mounting plate. Two symmetrically arranged miniature bidirectional electric screws are rotatably connected in the mounting plate, and a clamping nut is threadedly connected to the miniature bidirectional electric screw, and a clamping plate is fixedly connected to the clamping nut.

[0010] Preferably, the door panel quality inspection and evaluation module includes: The manual inspection unit is used to conduct preliminary inspection on the door panels, including dimensional inspection, appearance quality assessment and cleanliness assessment, and obtain the sum of several groups of dimensional errors, appearance quality coefficient and cleanliness coefficient of the door panels; An evaluation value acquisition unit, used for obtaining a plurality of door panel size evaluation values, door panel appearance evaluation values ​​and door panel cleanliness evaluation values ​​of the door panel based on a plurality of groups of results acquired by the image acquisition component and a trained size evaluation model, appearance evaluation model and cleanliness evaluation model; A matrix construction unit, used for constructing a door panel quality evaluation matrix based on the detection and acquisition results of the manual detection unit and the evaluation value acquisition unit; X= (1); Y= (2); (3); among which, is the door panel quality assessment matrix, X is the first matrix, Y is the second matrix, is the sum of the first size errors obtained based on the manual inspection unit, is the sum of the second size errors obtained based on the manual inspection unit, Based on the sum of the nth dimension errors obtained by the manual inspection unit, is the first appearance quality coefficient obtained based on the manual inspection unit, is the second appearance quality coefficient obtained based on the manual inspection unit, is the nth appearance quality coefficient obtained based on the manual inspection unit, is the first cleanliness factor obtained based on the manual inspection unit, is the second cleanliness factor obtained based on the manual inspection unit, is the nth cleanliness factor obtained based on the manual inspection unit, The first door panel size evaluation value output by the size evaluation model. This is the second door panel size evaluation value output by the size evaluation model. is the nth door panel size evaluation value output by the size evaluation model, This is the first door panel appearance evaluation value output by the appearance evaluation model. This is the appearance evaluation value of the second door panel output by the appearance evaluation model. is the nth door panel appearance evaluation value output by the appearance evaluation model, The first door panel cleanliness assessment value output by the cleanliness assessment model. The cleanliness assessment value of the second door panel output by the cleanliness assessment model. The nth door panel cleanliness assessment value output by the cleanliness assessment model; A comprehensive quality coefficient determination unit, used for determining the comprehensive quality coefficient of the door panel based on the door panel quality assessment matrix; In the door panel quality assessment matrix, each row element in each first matrix and each column element in the corresponding second matrix are deleted to obtain three intermediate matrices, the ranks of the three intermediate matrices are calculated, and the rank of the three intermediate matrices whose value deviates most from the average of the ranks of the three intermediate matrices is deleted, and the average of the ranks of the remaining two matrices is used as the comprehensive quality coefficient of the door panel.

[0011] Preferably, the mechanical sorting mechanism comprises a robot arm track, a sorting robot arm is slidably connected to the robot arm track, and a sorting clamp is installed at the working end of the sorting robot arm.

[0012] Preferably, the movable stacking unit comprises a stacking frame, in which a micro electric gear is rotatably connected, and the micro electric gear is meshed with the bottom of the partition; The partition is slidably connected to the stacking frame, and comprises a back plate, a rack plate and a trapezoidal plate installed on the back plate, and a negative pressure component is arranged on the trapezoidal plate.

[0013] Preferably, it also includes a stacking and bundling assembly, the stacking and bundling assembly includes two symmetrically arranged electric height-adjusting screws, the electric height-adjusting screws are rotatably connected in the stacking frame, the electric height-adjusting screws are threadedly connected with a height-adjusting nut, an L-shaped mounting plate is fixedly connected between the two height-adjusting nuts, the L-shaped mounting plate is provided with a plate entrance, a toggle alignment piece is rotatably connected to the L-shaped mounting plate, a clamping rod is slidably connected to the L-shaped mounting plate up and down, a clamping elastic piece is sleeved on the clamping rod, a clamping roller is rotatably connected to the bottom of the clamping rod, a strap retracting and releasing assembly is installed on the L-shaped mounting plate, the strap retracting and releasing assembly is used for retracting and releasing straps, and the straps are used for bundling door panels.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention places the door panel at the starting end of the conveying unit, and conveys the door panel to the door panel quality inspection mechanism along the conveying direction of the conveying unit. The door panel is quality inspected by the door panel quality inspection mechanism, and the quality inspection result is transmitted to the mechanical sorting mechanism. The mechanical sorting mechanism removes the door panel that fails the quality inspection. When conveying to the tail end of the conveying device, the door panel is lifted to a height suitable for being received by the movable stacking unit by the lifting unit, and finally the door panel is stacked in the movable stacking unit. The use of several conveying units for conveying facilitates the maintenance of the conveying device and line changes. The design of the conveying roller can reduce the wear of the door panel during the conveying process. The door panel quality inspection mechanism and the mechanical sorting mechanism of the present invention realize the quality inspection requirements during the transportation process, and the design of the lifting unit improves the adaptability of the output end of the conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A schematic diagram of the structure of the lifting unit of the present invention; Figure 3 This is a schematic diagram of the structure of the door panel quality inspection mechanism of the present invention; Figure 4 For the present invention Figure 3 A local enlarged view of point A; Figure 5 For the present invention Figure 3 A partial enlarged view of point B; Figure 6 It is a schematic diagram of the structure of the mechanical sorting mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the movable stacking unit of the present invention.

[0016] In the figure: 1. conveying unit; 100. supporting leg; 101. conveying roller mounting frame; 102. conveying roller; 2. lifting unit; 200. lifting frame; 201. lifting conveying roller mounting frame; 202. auxiliary over-conveying mechanism; 203. lifting drive cylinder; 204. mounting block; 205. lifting shaft; 206. pulley; 207. connecting belt; 2070. belt part; 2071. chain part; 3. movable stacking unit; 300. stacking frame; 301. micro electric gear; 302. partition; 303. back plate; 304. rack plate; 305. trapezoidal plate; 306. negative pressure assembly; 307. electric height adjustment screw; 3070. height adjustment nut; 3071. L-type installation Plate loading; 3072, plate inlet; 3073, toggle alignment piece; 3074, clamping rod; 3075, clamping elastic piece; 3076, clamping roller; 3077, strapping retracting and releasing assembly; 3078, strapping; 4, door panel quality inspection mechanism; 400, sleeve column; 401, slide rail; 402, electric drive gear; 403, fixed rack; 404, square column; 405, lifting cylinder; 406, buffer elastic piece; 407, rotating motor; 4070, hydraulic cylinder; 4071, mounting plate; 4072, micro bidirectional electric lead screw; 4073, clamping nut; 4074, clamping plate; 5, mechanical sorting mechanism; 500, robot arm track; 501, sorting robot arm; 502, sorting clamping piece. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] The present invention provides the following embodiments Example 1 The embodiment of the present invention provides a conveying device for door panel processing, such as Figure 1-7As shown, it includes a plurality of conveying units 1, a lifting unit 2 and a movable stacking unit 3, and a plurality of conveying units 1 are sequentially arranged with a door panel quality inspection mechanism 4 and a mechanical sorting mechanism 5 along their conveying direction.

[0020] Preferably, the conveying unit 1 comprises a supporting leg 100 , on which a conveying roller mounting frame 101 is mounted, and on which a plurality of conveying rollers 102 are rotatably connected.

[0021] Preferably, the mechanical sorting mechanism 5 comprises a robot rail 500 , on which a sorting robot arm 501 is slidably connected, and a sorting clamp 502 is installed at the working end of the sorting robot arm 501 .

[0022] The working principle and beneficial effects of the above technical solution are as follows: the door panel is placed at the starting end of the conveying unit 1, and the door panel is conveyed to the door panel quality inspection mechanism 4 along the conveying direction of the conveying unit 1, and the door panel is quality inspected by the door panel quality inspection mechanism 4, and the quality inspection result is transmitted to the mechanical sorting mechanism 5, and the mechanical sorting mechanism 5 removes the door panel that fails the quality inspection, and when conveyed to the tail end of the conveying device, the door panel is lifted to a height suitable for the movable stacking unit 3 to receive by the lifting unit 2, and finally the door panel is stacked in the movable stacking unit 3; The use of several conveying units 1 for conveying facilitates the maintenance and line change of the conveying device, and the design of the conveying roller 102 can reduce the wear of the door panel during the conveying process; The door panel quality inspection mechanism 4 and the mechanical sorting mechanism 5 of the present invention realize the quality inspection requirements during the transportation process, and the design of the lifting unit 2 improves the adaptability of the output end of the conveying device.

[0023] Example 2 On the basis of embodiment 1, the lifting unit 2 includes a lifting frame 200, on which a lifting assembly is provided, a lifting conveying roller mounting frame 201 is installed at the working end of the lifting assembly, and a plurality of conveying rollers 102 are installed on the lifting conveying roller mounting frame 201; An auxiliary over-conveying mechanism 202 is arranged in front of the lifting frame 200 , and the movable stacking unit 3 is arranged in front of the auxiliary over-conveying mechanism 202 .

[0024] Preferably, the lifting assembly includes a lifting drive cylinder 203, the lifting drive cylinder 203 is fixedly connected to the lifting frame 200, the working end of the lifting drive cylinder 203 is fixedly connected to a mounting block 204, the mounting block 204 is fixedly connected to a lifting shaft 205, both ends of the lifting shaft 205 are rotatably connected to pulleys 206, a connecting belt 207 is installed on the pulley 206, one end of the connecting belt 207 is fixedly connected to the lifting frame 200, and the other end of the connecting belt 207 is fixedly connected to the lifting conveying roller mounting frame 201, and the lifting conveying roller mounting frame 201 is slidably connected to the lifting frame 200; The connecting belt 207 includes a belt portion 2070 and a chain portion 2071 .

[0025] The working principle and beneficial effects of the above technical solution are as follows: when the lifting unit 2 is in use, the lifting drive cylinder 203 is extended and retracted to drive the lifting shaft 205 to move up and down, thereby driving the pulley 206 to rotate. During the rotation of the pulley 206, the connecting belt 207 slides along it, thereby realizing the adjustment of the height of the lifting frame 200.

[0026] Example 3 On the basis of Example 1, the door panel quality inspection mechanism 4 includes a sleeve column 400, the bottom of the sleeve column 400 is slidably connected to the slide rail 401, the bottom of the sleeve column 400 is rotatably connected to an electric drive gear 402, the inner wall of the slide rail 401 is provided with a fixed rack 403, the electric drive gear 402 and the fixed rack 403 are meshed with each other, a square column 404 is slidably connected up and down in the sleeve column 400, a lifting cylinder 405 is fixedly connected in the sleeve column 400, the working end of the lifting cylinder 405 is fixedly connected to the bottom of the square column 404, and a buffer elastic member 406 is fixedly connected between the square column 404 and the inner wall of the sleeve column 400; A door panel clamping assembly and an image acquisition assembly are installed on the square column 404 . The image acquisition assembly is electrically connected to the door panel quality inspection and evaluation module, and the door panel quality inspection and evaluation module is electrically connected to the mechanical sorting mechanism 5 .

[0027] Preferably, the door panel clamping assembly includes a rotating motor 407, which is fixedly connected to the square column 404, and the working end of the rotating motor 407 is fixedly connected to a hydraulic cylinder 4070, and the working end of the hydraulic cylinder 4070 is fixedly connected to a mounting plate 4071, and two symmetrically arranged miniature bidirectional electric lead screws 4072 are rotatably connected in the mounting plate 4071, and the miniature bidirectional electric lead screw 4072 is threadedly connected to a clamping nut 4073, and the clamping nut 4073 is fixedly connected to a clamping plate 4074.

[0028] The working principle and beneficial effects of the above technical solution are as follows: when in use, the door panel on the conveying unit 1 is clamped and flipped to realize all-round image acquisition of the door panel. Specifically, the lifting cylinder 405 is shortened to drive the square column 404 to move downward until the mounting plate 4071 drops to the same horizontal line as the door panel. Then the hydraulic cylinder 4070 is extended to clamp the door panel between the two mounting plates 4071. Then the micro bidirectional electric screw 4072 is rotated to drive the clamping nut 4073 to move toward each other, so that the upper and lower surfaces of the door panel are respectively in contact with the two clamping plates 4074. Then the lifting cylinder 405 is extended to drive the clamped door panel to move upward, reserving a flipping space. Then the rotating motor 407 is started to drive the mounting plate 4071 to rotate to realize the flipping of the door panel. During the flipping process, the image acquisition component performs all-round image acquisition.

[0029] Example 4 Based on Example 3, the door panel quality inspection and evaluation module includes: The manual inspection unit is used to conduct preliminary inspection of the door panels, including size inspection, appearance quality assessment and cleanliness assessment, to obtain the sum of several groups of size errors of the door panels (the difference between the preset length, width and height of the door panels and the actual dimensions), appearance quality coefficient and cleanliness coefficient; An evaluation value acquisition unit, used for obtaining a plurality of door panel size evaluation values, door panel appearance evaluation values ​​and door panel cleanliness evaluation values ​​of the door panel based on a plurality of groups of results acquired by the image acquisition component and a trained size evaluation model, appearance evaluation model and cleanliness evaluation model; A matrix construction unit, used for constructing a door panel quality evaluation matrix based on the detection and acquisition results of the manual detection unit and the evaluation value acquisition unit; X= (1); Y= (2); (3); among which, is the door panel quality assessment matrix, X is the first matrix, Y is the second matrix, is the sum of the first size errors obtained based on the manual inspection unit, is the sum of the second size errors obtained based on the manual inspection unit, Based on the sum of the nth dimension errors obtained by the manual inspection unit, is the first appearance quality coefficient obtained based on the manual inspection unit, is the second appearance quality coefficient obtained based on the manual inspection unit, is the nth appearance quality coefficient obtained based on the manual inspection unit, is the first cleanliness factor obtained based on the manual inspection unit, is the second cleanliness factor obtained based on the manual inspection unit, is the nth cleanliness factor obtained based on the manual inspection unit, The first door panel size evaluation value output by the size evaluation model. This is the second door panel size evaluation value output by the size evaluation model. is the nth door panel size evaluation value output by the size evaluation model, This is the first door panel appearance evaluation value output by the appearance evaluation model. This is the appearance evaluation value of the second door panel output by the appearance evaluation model. is the nth door panel appearance evaluation value output by the appearance evaluation model, The first door panel cleanliness assessment value output by the cleanliness assessment model. The cleanliness assessment value of the second door panel output by the cleanliness assessment model. The nth door panel cleanliness assessment value output by the cleanliness assessment model; A comprehensive quality coefficient determination unit, used for determining the comprehensive quality coefficient of the door panel based on the door panel quality assessment matrix; In the door panel quality assessment matrix, each row element in each first matrix and each column element in the corresponding second matrix are deleted to obtain three intermediate matrices, the ranks of the three intermediate matrices are calculated, and the rank of the three intermediate matrices whose value deviates most from the average of the ranks of the three intermediate matrices is deleted, and the average of the ranks of the remaining two matrices is used as the comprehensive quality coefficient of the door panel.

[0030] The working principle and beneficial effects of the above technical solution: The design of the door panel quality inspection and evaluation module can realize a comprehensive evaluation of the door panel quality. When the comprehensive quality coefficient of the door panel is less than the preset comprehensive quality coefficient of the door panel, it is proved that the door panel is unqualified, otherwise the door panel is qualified. The unqualified door panel will be removed by the mechanical sorting mechanism 5 when passing through the mechanical sorting mechanism 5, thereby ensuring the factory quality of the door panel.

[0031] Example 5 On the basis of Example 1, the movable stacking unit 3 includes a stacking frame 300, in which a micro electric gear 301 is rotatably connected, and the micro electric gear 301 is meshed with the bottom of the partition 302; The partition 302 is slidably connected to the stacking frame 300 . The partition 302 includes a back plate 303 , a rack plate 304 and a trapezoidal plate 305 installed on the back plate 303 . A negative pressure assembly 306 is provided on the trapezoidal plate 305 .

[0032] Preferably, it also includes a stacking and bundling assembly, which includes two symmetrically arranged electric height adjustment screws 307, which are rotatably connected in the stacking frame 300, and the electric height adjustment screws 307 are threadedly connected with a height adjustment nut 3070, and an L-shaped mounting plate 3071 is fixedly connected between the two height adjustment nuts 3070, and the L-shaped mounting plate 3071 is provided with a plate entrance 3072, and the L-shaped mounting plate 3071 is rotatably connected with a toggle alignment piece 3073, and the L-shaped mounting plate 3071 is slidably connected with a clamping rod 3074, and the clamping rod 3074 is sleeved with a clamping elastic piece 3075, and the bottom of the clamping rod 3074 is rotatably connected with a clamping roller 3076, and a strap retracting and releasing assembly 3077 is installed on the L-shaped mounting plate 3071, and the strap retracting and releasing assembly 3077 is used for retracting and releasing straps 3078, and the straps 3078 are used for bundling door panels.

[0033] The working principle and beneficial effects of the above technical solution are as follows: when in use, the electric height adjustment screw 307 rotates to drive the height adjustment nut 3070 to move up and down, so that the bottom of the L-shaped mounting plate 3071 is attached to the rack plate 304 on which the partition plate 302 is to be placed, so that the door plate slides onto the trapezoidal plate 305 after sliding through the plate inlet 3072; When the next door panel slides into the panel inlet 3072, the trapezoidal plate 305 causes the next door panel to push the previous door panel upward, thereby realizing the self-stacking of the door panels. During the stacking process of the door panels, the pressing rod 3074 gradually moves upward under the push of the door panels. During this process, the pressing elastic member 3075 is continuously shortened. Under the action of the pressing rod 3074, the stacked door panels can be kept in position. When the door panel is stuck during the pushing process or the left side of the door panel is not aligned, the alignment member 3073 is turned to push the door panel forward or align the left side of the door panel. Before stacking the door panels, the strap retracting assembly 3077 releases the strap 3078, and at the same time the negative pressure assembly 306 is started to adsorb the strap 3078 onto the trapezoidal plate 305. When the door panels are stacked, the first door panel passes through the strap 3078. When the last door panel is successfully stacked, the strap retracting assembly 3077 tightens the strap 3078 and cuts the tightening opening, thereby realizing automatic stacking and bundling of the door panels. The partition 302 can be pushed out or disassembled according to the design and use requirements. Before stacking the middle partition 302, the stacking and bundling assembly moves upward as a whole to the top of the corresponding partition 302.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A conveying device for door panel processing, characterized in that: It comprises a plurality of conveying units (1), a lifting unit (2) and a movable stacking unit (3), wherein the plurality of conveying units (1) are sequentially provided with a door panel quality inspection mechanism (4) and a mechanical sorting mechanism (5) along their conveying direction.

2. A conveying device for door panel processing according to claim 1, characterized in that: The conveying unit (1) comprises a supporting leg (100), a conveying roller mounting frame (101) being mounted on the supporting leg (100), and a plurality of conveying rollers (102) being rotatably connected to the conveying roller mounting frame (101).

3. A conveying device for door panel processing according to claim 1, characterized in that: The lifting unit (2) comprises a lifting frame (200), a lifting assembly is provided on the lifting frame (200), a lifting conveying roller mounting frame (201) is installed at the working end of the lifting assembly, and a plurality of conveying rollers (102) are installed on the lifting conveying roller mounting frame (201); An auxiliary over-conveying mechanism (202) is arranged in front of the lifting frame (200), and a movable stacking unit (3) is arranged in front of the auxiliary over-conveying mechanism (202).

4. A conveying device for door panel processing according to claim 3, characterized in that: The lifting assembly comprises a lifting drive cylinder (203), the lifting drive cylinder (203) is fixedly connected to the lifting frame (200), the working end of the lifting drive cylinder (203) is fixedly connected to a mounting block (204), the mounting block (204) is fixedly connected to a lifting shaft (205), both ends of the lifting shaft (205) are rotatably connected to pulleys (206), a connecting belt (207) is installed on the pulley (206), one end of the connecting belt (207) is fixedly connected to the lifting frame (200), and the other end of the connecting belt (207) is fixedly connected to a lifting conveying roller mounting frame (201), and the lifting conveying roller mounting frame (201) is connected to the lifting frame (200) in an up-and-down sliding manner; The connecting belt (207) includes a belt portion (2070) and a chain portion (2071).

5. The conveying device for door panel processing according to claim 1, characterized in that: The door panel quality inspection mechanism (4) comprises a sleeve column (400), the bottom of the sleeve column (400) is slidably connected to the slide rail (401), the bottom of the sleeve column (400) is rotatably connected to an electric drive gear (402), the inner wall of the slide rail (401) is provided with a fixed rack (403), the electric drive gear (402) and the fixed rack (403) are meshed with each other, a square column (404) is slidably connected up and down in the sleeve column (400), a lifting cylinder (405) is fixedly connected in the sleeve column (400), a working end of the lifting cylinder (405) is fixedly connected to the bottom of the square column (404), and a buffer elastic member (406) is fixedly connected between the square column (404) and the inner wall of the sleeve column (400); A door panel clamping component and an image acquisition component are mounted on the square column (404); the image acquisition component is electrically connected to a door panel quality inspection and evaluation module; and the door panel quality inspection and evaluation module is electrically connected to a mechanical sorting mechanism (5).

6. A conveying device for door panel processing according to claim 5, characterized in that: The door panel clamping assembly comprises a rotating motor (407), the rotating motor (407) is fixedly connected in a square column (404), a hydraulic cylinder (4070) is fixedly connected to a working end of the rotating motor (407), a mounting plate (4071) is fixedly connected to a working end of the hydraulic cylinder (4070), two symmetrically arranged micro bidirectional electric lead screws (4072) are rotatably connected in the mounting plate (4071), a clamping nut (4073) is threadedly connected to the micro bidirectional electric lead screw (4072), and a clamping plate (4074) is fixedly connected to the clamping nut (4073).

7. A conveying device for door panel processing according to claim 5, characterized in that: Door panel quality inspection and evaluation modules include: The manual inspection unit is used to conduct preliminary inspection on the door panels, including dimensional inspection, appearance quality assessment and cleanliness assessment, and obtain the sum of several groups of dimensional errors, appearance quality coefficient and cleanliness coefficient of the door panels; An evaluation value acquisition unit, used for obtaining a plurality of door panel size evaluation values, door panel appearance evaluation values ​​and door panel cleanliness evaluation values ​​of the door panel based on a plurality of groups of results acquired by the image acquisition component and a trained size evaluation model, appearance evaluation model and cleanliness evaluation model; A matrix construction unit, used for constructing a door panel quality evaluation matrix based on the detection and acquisition results of the manual detection unit and the evaluation value acquisition unit; X= （1）； Y= （2）； (3); among which, is the door panel quality assessment matrix, X is the first matrix, Y is the second matrix, is the sum of the first size errors obtained based on the manual inspection unit, is the sum of the second size errors obtained based on the manual inspection unit, Based on the sum of the nth dimension errors obtained by the manual inspection unit, is the first appearance quality coefficient obtained based on the manual inspection unit, is the second appearance quality coefficient obtained based on the manual inspection unit, is the nth appearance quality coefficient obtained based on the manual inspection unit, is the first cleanliness factor obtained based on the manual inspection unit, is the second cleanliness factor obtained based on the manual inspection unit, is the nth cleanliness factor obtained based on the manual inspection unit, The first door panel size evaluation value output by the size evaluation model. This is the second door panel size evaluation value output by the size evaluation model. is the nth door panel size evaluation value output by the size evaluation model, This is the first door panel appearance evaluation value output by the appearance evaluation model. This is the appearance evaluation value of the second door panel output by the appearance evaluation model. is the nth door panel appearance evaluation value output by the appearance evaluation model, The first door panel cleanliness assessment value output by the cleanliness assessment model. The cleanliness assessment value of the second door panel output by the cleanliness assessment model. The nth door panel cleanliness assessment value output by the cleanliness assessment model; A comprehensive quality coefficient determination unit, used for determining the comprehensive quality coefficient of the door panel based on the door panel quality assessment matrix; In the door panel quality assessment matrix, each row element in each first matrix and each column element in the corresponding second matrix are deleted to obtain three intermediate matrices, the ranks of the three intermediate matrices are calculated, and the rank of the three intermediate matrices whose value deviates most from the average of the ranks of the three intermediate matrices is deleted, and the average of the ranks of the remaining two matrices is used as the comprehensive quality coefficient of the door panel.

8. The conveying device for door panel processing according to claim 1, characterized in that: The mechanical sorting mechanism (5) comprises a mechanical arm track (500), a sorting mechanical arm (501) is slidably connected to the mechanical arm track (500), and a sorting clamp (502) is installed at the working end of the sorting mechanical arm (501).

9. The conveying device for door panel processing according to claim 1, characterized in that: The movable stacking unit (3) comprises a stacking frame (300), a micro electric gear (301) is rotatably connected inside the stacking frame (300), and the micro electric gear (301) is meshed with the bottom of the partition (302); The partition plate (302) is slidably connected to the stacking frame (300), and the partition plate (302) comprises a back plate (303), a rack plate (304) and a trapezoidal plate (305) mounted on the back plate (303), and a negative pressure assembly (306) is provided on the trapezoidal plate (305).

10. A conveying device for door panel processing according to claim 9, characterized in that: The stacking and bundling assembly also includes two symmetrically arranged electric height adjustment screws (307), the electric height adjustment screws (307) are rotatably connected in the stacking frame (300), a height adjustment nut (3070) is threadedly connected to the electric height adjustment screw (307), an L-shaped mounting plate (3071) is fixedly connected between the two height adjustment nuts (3070), the L-shaped mounting plate (3071) is provided with a plate inlet (3072), and the L-shaped mounting plate (3071) is fixedly connected to the stacking frame (300). ) is rotatably connected to a toggle alignment piece (3073), an L-shaped mounting plate (3071) is slidably connected to a clamping rod (3074) in an up-and-down manner, a clamping elastic piece (3075) is sleeved on the clamping rod (3074), a clamping roller (3076) is rotatably connected to the bottom of the clamping rod (3074), a strap retracting assembly (3077) is installed on the L-shaped mounting plate (3071), the strap retracting assembly (3077) is used to retract and release straps (3078), and the straps (3078) are used to bind the door panels.

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