Product sorting machine

Abstract

The invention provides a product sorting machine. The product sorting machine comprises a rack, a first conveying mechanism, a sorting mechanism, a second conveying mechanism, a defective product collecting mechanism and a good product collecting mechanism, the first conveying mechanism comprises a first conveying belt and a visual detector arranged above the first conveying belt; the sorting mechanism is arranged at the tail end of the first conveying mechanism and used for conveying products conveyed by the first conveying belt to the defective product collecting mechanism or conveying the products to the second conveying mechanism according to information transmitted by the visual detector, and the products are conveyed to the good product collecting mechanism through the second conveying mechanism. By means of a series of mechanisms, full-automatic detection of products and classified storage of good products and defective products are achieved; the working efficiency is greatly improved, the detection error rate is reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of automation technology, and in particular relates to a product sorting machine. Background Art

[0002] After the initial production of small electronic components is completed, in order to facilitate storage, transportation and extraction during use, they are generally arranged on a material tape, and then the material tape is made into a coil. Before use, the coil is cut into sheets as needed, and the sheets are stacked into a stack and placed in a material box, which is supplied for use in the form of a material box. During the production process of electronic components, although most of them are qualified, further testing is still required to improve product quality. After testing, good and defective products are collected separately. Traditional manual visual inspection and classification has high labor costs, low efficiency and high error probability, so automated inspection and classification must be achieved.

[0003] Product inspection is simple and can be done with visual equipment, but product classification and the grabbing, placing and stacking of boxes containing products are difficult to achieve.

[0004] Based on the above problems, the present application provides a fully automatic device for detecting, classifying and collecting products. Summary of the invention

[0005] In order to achieve the above-mentioned purpose and improve the problems existing in the prior art, a product sorting machine is provided. The present invention adopts the following technical solutions: The present invention provides a product sorting machine, comprising a frame and a first conveying mechanism, a sorting mechanism, a second conveying mechanism, a defective product collecting mechanism and a good product collecting mechanism arranged on the frame; The first conveying mechanism includes a first conveying belt and a visual detector disposed above the first conveying belt; The sorting mechanism is arranged at the tail end of the first conveying mechanism. The sorting mechanism is used to convey the products conveyed by the first conveyor belt to the defective product collection mechanism according to the information transmitted by the visual detector, or to convey the products to the second conveying mechanism and convey the products to the good product collection mechanism through the second conveying mechanism.

[0006] Preferably, the sorting mechanism includes a first bracket, a first motor, a sorting conveying part and a second motor, the first bracket is provided with a U-shaped groove, the main body of the sorting conveying part is arranged in the U-shaped groove of the first bracket through a rotating shaft, the first motor is arranged outside the U-shaped groove, the output shaft of the first motor is transmission connected to the rotating shaft, and the second motor is transmission connected to the sorting conveying part for driving the belt of the sorting conveying part.

[0007] Preferably, the sorting mechanism also includes a limiting portion, which includes a first limiting block, a second limiting block and a stopper. The end of the rotating shaft away from the first motor extends outward through the U-shaped groove. The first limiting block and the second limiting block are respectively arranged on the outside of the first bracket away from the first motor, and are located on both sides of the free end of the rotating shaft. The stopper is connected to the free end of the rotating shaft. The stopper is provided with a first limiting rod and a second limiting rod, and corresponds to the first limiting block and the second limiting block.

[0008] Preferably, the defective product collection mechanism includes a first material tray position structure, a material receiving position structure, a second material tray position structure and a material tray moving structure, and the first material tray position structure and the second material tray position structure are respectively arranged on both sides of the material receiving position structure; the first material tray position structure is used to stack material trays to be received, and the material tray moving structure is arranged below the material receiving position structure, and is used to take material trays at the first material tray position structure and send them to the second material tray position structure after receiving the material.

[0009] Preferably, the first material tray position structure includes a first frame plate, and limiting angle irons are provided at the four corner edges of the inner hole of the first frame plate. A tray part and a limiting tray part are respectively provided at both ends of the first frame plate, and the tray part includes a first drive unit and a support plate connected to the output shaft of the first drive unit, and the limiting tray part includes a second drive unit and a limiting plate connected to the output shaft of the second drive unit.

[0010] Preferably, the material receiving position structure includes a second frame plate, the upper end surface of the second frame plate is provided with a material guide plate, and both ends of the lower end surface of the second frame plate are respectively provided with a plate lifting part for lifting the plate; the plate lifting part includes a third drive unit and a material lifting plate connected to the output shaft of the third drive unit.

[0011] Preferably, the second material tray position structure includes a third frame plate and a plurality of top tray parts, the plurality of top tray parts are arranged at predetermined distances along the four sides of the third frame plate, the top tray parts include a top seat, a support block, a pivot and a positioning shaft, the top seat is connected to the third frame plate, the support block is connected to the top seat through the pivot, the positioning shaft is connected to the top seat, and is used to limit the support block; the free end of the support block is at an acute angle, and when the support block is limited by the positioning shaft, the upper inclined surface of the free end of the support block is in a horizontal state; when the lower inclined surface of the free end of the support block is 90 degrees to the horizontal plane, the support block as a whole is less than 90 degrees to the horizontal plane.

[0012] Preferably, the tray moving structure includes a Y-axis drive unit and a lifting part, the lifting part includes a Z-axis drive unit, a top plate and a adsorber, the top plate is connected to the output shaft of the Z-axis drive unit, and the output shaft of the Z-axis drive unit is connected to the output shaft of the Y-axis drive unit; a through hole is provided on the top plate, and the adsorber is arranged in the through hole.

[0013] Preferably, two lifting parts are provided, and the two lifting parts are connected by a connecting plate and an output shaft of a Y-axis driving unit; the distance between the first material tray position structure and the material receiving position structure is equal to the distance between the material receiving position structure and the second material tray position structure, and the distance between the two lifting parts is also equal to the distance between the first material tray position structure and the material receiving position structure; when the first lifting part is located directly below the first material tray position structure, the second lifting part is located directly below the material receiving position structure, and when the first lifting part is located directly below the material receiving position structure, the second lifting part is located directly below the second material tray position structure.

[0014] Preferably, the good product collecting mechanism and the defective product collecting mechanism have the same structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a product sorting machine, including a frame and a first conveying mechanism, a sorting mechanism, a second conveying mechanism, a defective product collection mechanism and a good product collection mechanism arranged on the frame; the first conveying mechanism includes a first conveyor belt and a visual detector arranged above the first conveyor belt; the sorting mechanism is arranged at the tail end of the first conveying mechanism, and the sorting mechanism is used to convey the product conveyed by the first conveyor belt to the defective product collection mechanism, or to the second conveying mechanism and convey the product to the good product collection mechanism through the second conveying mechanism according to the information transmitted by the visual detector. The present invention realizes fully automated product detection and classified storage of good and defective products through a series of mechanisms; greatly improves work efficiency, reduces detection error rate and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the three-dimensional structure of the product sorting machine of the present invention in one direction.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the product sorting machine of the present invention in another direction.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the sorting mechanism in the product sorting machine of the present invention in one direction.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the sorting mechanism in the product sorting machine of the present invention in another direction.

[0020] Figure 5 yes Figure 4 Schematic diagram of the structure after enlargement at A in the middle.

[0021] Figure 6 The figure is a three-dimensional structural schematic diagram of another direction of the sorting mechanism in the product sorting machine of the present invention.

[0022] Figure 7It is a schematic diagram of the planar structure of the sorting mechanism in the product sorting machine of the present invention in one direction.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of a defective product collecting mechanism in the product sorting machine of the present invention in one direction.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the defective product collecting mechanism in the product sorting machine of the present invention in another direction.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the first material tray position structure in one direction of the product sorting machine of the present invention.

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the first material tray position structure in the product sorting machine of the present invention in another direction.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the material receiving position structure in one direction of the product sorting machine of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the material receiving position structure in the product sorting machine of the present invention in another direction.

[0029] Fig.14 It is a schematic diagram of the planar structure of the material receiving position structure in one direction of the product sorting machine of the present invention.

[0030] Fig.15 It is a schematic diagram of the three-dimensional structure of the second material tray structure in one direction of the product sorting machine of the present invention.

[0031] Fig.16 It is a schematic diagram of the planar structure of the second material tray position structure in one direction in the product sorting machine of the present invention.

[0032] Fig.17 yes Fig.16 Schematic diagram of the enlarged structure at point B.

[0033] Fig.18 It is a schematic diagram of the planar structure of the second material tray position structure in another direction in the product sorting machine of the present invention.

[0034] Fig.19 yes Fig.18 Schematic diagram of the enlarged structure at point C in the middle.

[0035] Fig. 20 It is a schematic diagram of the three-dimensional structure of the top plate part of the product sorting machine of the present invention in one direction.

[0036] Fig.21 It is a schematic cross-sectional structure diagram of a top plate portion in a product sorting machine of the present invention in one state.

[0037] Fig. 22 It is a schematic cross-sectional structural diagram of another state of the top plate portion of the product sorting machine of the present invention.

[0038] Fig.23 It is a schematic diagram of the three-dimensional structure of the material tray moving structure in one direction of the product sorting machine of the present invention.

[0039] Fig.24 A schematic diagram of the three-dimensional structure of the material tray moving structure in another direction of the product sorting machine of the present invention The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] As attached Figures 1 to 24 As shown, the present invention provides a product sorting machine, comprising a frame and a first conveying mechanism 1, a sorting mechanism 2, a second conveying mechanism 3, a defective product collecting mechanism 4 and a good product collecting mechanism 5 arranged on the frame; The first conveying mechanism 1 includes a first conveying belt 11 and a visual detector 12 disposed above the first conveying belt 11; The sorting mechanism 2 is arranged at the tail end of the first conveying mechanism 1. The sorting mechanism 2 is used to convey the products conveyed by the first conveyor belt 11 to the defective product collection mechanism 4 according to the information transmitted by the visual detector 12, or to convey them to the second conveying mechanism 3 and convey the products to the good product collection mechanism 5 through the second conveying mechanism 3.

[0043] Specifically, the material is placed in front of the first conveying mechanism 1, and the materials are conveyed one by one on the first conveying mechanism 1 toward the sorting mechanism 2. During the conveying process, the visual detector 12 arranged above the first conveying mechanism 1 identifies whether the material is a good product. When the material is detected to be a good product and conveyed to the belt of the sorting mechanism 2, the sorting mechanism 2 does not make adjustments, and the sorting mechanism 2 then conveys the good material to the belt of the second conveying mechanism 3, and the second conveying mechanism 3 conveys the good material to the good collection mechanism 5 for collection; when the material is detected to be a defective product and conveyed to the belt of the sorting mechanism 2, the sorting mechanism 2 makes adjustments and directly conveys the defective material to the defective collection mechanism for collection. The present invention realizes fully automated product detection and classified storage of good and defective products through a series of mechanisms; it greatly improves work efficiency, reduces detection error rate and reduces labor costs.

[0044] See also Figures 3 to 7 In some embodiments, the sorting mechanism 2 includes a first bracket 21, a first motor 22, a sorting conveying part 23 and a second motor 24. The first bracket 21 is provided with a U-shaped groove. The main body of the sorting conveying part 23 is arranged in the U-shaped groove of the first bracket 21 through a rotating shaft 25. The first motor 22 is arranged outside the U-shaped groove. The output shaft of the first motor 22 is connected to the rotating shaft 25 in a transmission manner. The second motor 24 is connected to the sorting conveying part 23 in a transmission manner to drive the belt of the sorting conveying part 23. Specifically, this embodiment provides a device for sorting good and bad materials. When the overall machine is set up, a bad product collecting mechanism 4 is arranged at one end of the sorting mechanism 2 away from the first conveying mechanism 1. When the bad product material is transmitted to the belt of the sorting mechanism 2, no Start the second motor 24, and drive the main body through the first motor 22, so that the tail end of the main body is tilted downward to align with the material falling entrance of the defective product collection mechanism 4, and then start the second motor 24 to rotate the belt of the sorting and conveying part 23 to convey the defective material to the defective product collection mechanism 4 for collection; when the good material is conveyed to the belt of the sorting mechanism 2, do not start the second motor 24, and drive the main body to reset through the first motor 22. When the tail end of the main body of the sorting and conveying part 23 is flush with or slightly higher than the front end of the belt of the second conveying mechanism 3, start the second motor 24 again to rotate the belt of the sorting and conveying part 23 to convey the good material to the belt of the second conveying mechanism 3, and finally convey the good products to the good product collection mechanism 5 through the second conveying mechanism 3 for collection.

[0045] It should be noted that when the inspected material is transported from the first conveying mechanism 1 and handed over to the analysis mechanism, in order to avoid jamming, it also includes a guide part, the guide part includes a left bottom film, a right bottom film, a first guide plate and a second guide plate, the left bottom film and the right bottom film are respectively arranged on both sides of the belt, the first guide plate and the second guide plate are respectively arranged on the left bottom film and the right bottom film, the two ends of the first guide plate and the second guide plate are respectively turned outward relative to each other, and the two ends of the left bottom film and the right bottom film are respectively turned downward. With this structure, the inspected material will be smoothly transported from the belt of the first conveying mechanism 1, and will not be stuck at the entrance of the sorting mechanism 2 due to incorrect position. At the same time, the first guide plate and the second guide plate can also limit the axial position of the material to prevent the material from falling from the side of the belt during transportation.

[0046] In some embodiments, the first motor 22 is controlled by an automated program to accurately control the rotation amplitude of the output shaft of the first motor 22. However, in order to prevent the program from getting out of control and the output shaft of the first motor 22 from rotating too much and causing damage to the machine, this embodiment adds a mechanical structure to limit the rotation amplitude of the output shaft of the first motor 22. The sorting mechanism 2 also includes a limiting portion 26, and the limiting portion 26 includes a first limiting block 261, a second limiting block 262 and a stopper 263. The end of the rotating shaft 25 away from the first motor 22 extends outward through the U-shaped groove, and the first limiting block 261 and the second limiting block 262 are respectively arranged on the outer side of the first bracket 21 away from the first motor 22. , located on both sides of the free end of the rotating shaft 25, the stopper 263 is connected to the free end of the rotating shaft 25, and the stopper 263 is provided with a first limit rod 2631 and a second limit rod 2632, and corresponds to the first limit block 261 and the second limit block 262. Specifically, when the output shaft of the first motor 22 is driven to rotate clockwise, the first limit rod 2631 abuts against the first limit block 261, which can prevent the output shaft of the first motor 22 from further rotating clockwise. Similarly, when the output shaft of the first motor 22 is driven to rotate counterclockwise, the second limit rod 2632 abuts against the second limit block 262, which can prevent the output shaft of the first motor 22 from further rotating counterclockwise.

[0047] See also Figures 8 to 24In some embodiments, defective materials are collected by receiving materials on a tray. After a tray receives a predetermined number of defective products, it is necessary to replace it with a new tray to receive the materials. In the work process of taking the tray, receiving the materials on the tray and placing the received tray, this is a complicated process. It is necessary to take a tray from the stacked trays and put it in the receiving area. After receiving the materials, the trays that have received the materials must be stacked up at a predetermined position. This requires consideration of the rationality of the assembly of various components of the entire equipment. Specifically, the defective product collection mechanism 4 includes a first tray position structure 41, a receiving position structure 42, a second tray position structure 43 and a tray moving structure 44. The first tray position structure 41 and the second tray position structure 43 are respectively It is arranged on both sides of the material receiving position structure 42; the first material tray position structure 41 is used for stacking the material trays to be received, and the material tray moving structure 44 is arranged below the material receiving position structure 42, and is used to take the material tray at the first material tray position structure 41, and send it to the second material tray position structure 43 after receiving the material; the first material tray position structure 41, the material receiving position structure 42 and the second material tray position structure 43 are arranged in a row, and the material tray moving structure 44 is arranged below, and the material tray moving structure 44 moves back and forth between the first material tray position structure 41, the material receiving position structure 42 and the second material tray position structure 43, completing a series of actions of taking trays, receiving materials and placing trays, providing an automated solution for taking trays, receiving materials and placing trays of this equipment.

[0048] See also Figures 9 to 11In some embodiments, the first material tray position structure 41 includes a first frame plate 411, and limiting angle irons 412 are provided at the four corner edges of the inner hole of the first frame plate 411, and a tray portion 413 and a limiting tray portion 414 are respectively provided at both ends of the first frame plate 411; specifically, as the name suggests, the first frame plate 411 is a mounting plate, the middle of which is hollowed out, and the area of ​​the hollowing out is larger than the area of ​​the material tray, that is, the material tray can move up and down from the hollowing out; a tray portion 413 and a limiting tray portion 414 are provided around the first frame plate 411, wherein the function of the tray portion 413 is to hold the material tray and prevent the material tray from falling from the hollow part of the first frame plate 411, and the function of the limiting tray portion 414 is similar to that of the tray portion 413; before use, multiple material trays are stacked up and placed on the first frame plate 411, and the stacked multiple material trays are limited in position by the limiting angle irons 412, and the support The tray portion 413 holds the stacked multiple trays; when in use, first, the tray moving structure 44 moves to the bottom of the first tray position structure 41, then rises and supports the lower end surface of the bottom tray; then, the tray limiting portion 414 limits the second tray from the bottom; then, the tray portion 413 withdraws, releases the bottom tray, and allows the bottom tray to fall onto the tray moving structure 44, and the tray moving structure 44 receives a tray and then descends, moving the received tray to the bottom of the material receiving position structure 42 to receive the material; finally, the tray portion 413 is reset to the tray state, the tray limiting portion 414 is reset, and the second tray from the bottom that is limited is released, and the multiple stacked trays are released as the tray limiting portion 414 is reset, and fall with their own gravity, and are supported by the reset tray portion 413, and the original second tray from the bottom becomes the new bottom tray, and so on.

[0049] The tray portion 413 includes a first driving unit 4131 and a support plate 4132 connected to the output shaft of the first driving unit 4131, and the limiting plate portion 414 includes a second driving unit 4141 and a limiting plate 4142 connected to the output shaft of the second driving unit 4141; specifically, the movement of the tray portion 413 is a linear reciprocating movement, and its driving unit can adopt a conventional cylinder, the support plate 4132 is L-shaped, the outer side surface of one end of the support plate 4132 is connected to the output shaft of the first driving unit 4131, and the other end of the support plate 4132 extends away from the end of the first driving unit 4131, and the extended end of the support plate 4132 is used to support the material tray. The action process is that when the material tray needs to be supported, the first driving unit 4131 drives the support plate 4132 to extend forward, and when the material tray does not need to be supported, the first driving unit 4131 drives the support plate 4 132 moves backward; there are at least two tray parts 413, which are arranged opposite to each other at the two ends of the first frame plate 411; it can be understood that if only two tray parts 413 are set, the width of the support plate 4132 should be set wider and should be set on the central axis of the first support plate 4132, otherwise the material tray may be tilted, which will cause the material tray to move downward poorly. For this reason, preferably, four tray parts 413 can be set, two tray parts 413 are set at a predetermined distance at one end of the first frame plate 411, and two tray parts 413 are set opposite to each other at the other end at a predetermined distance; two limiting disk parts 414 are provided, and the two limiting disk parts 414 are arranged opposite to each other at the two ends of the first frame plate 411. When two tray parts 413 are provided, the two limiting disk parts 414 are arranged diagonally, and when four tray parts 413 are provided, the two limiting disk parts 414 are arranged on the central axis of the first frame plate 411.

[0050] See also Figure 12 to Figure 14In some embodiments, the material receiving structure 42 includes a second frame plate 421, the upper end surface of the second frame plate 421 is provided with a material guide plate 422, and the two ends of the lower end surface of the second frame plate 421 are respectively provided with a plate lifting portion 423 for lifting the plate; specifically, the second frame plate 421 is similar in structure to the first frame plate 411, and a hollow is provided in the middle of a plate, but the hollow on the second frame plate 421 only needs to be larger than the material, that is, the material can fall from the hollow on the second frame plate 421; the material guide plate 422 is arranged around the hollow on the second frame plate 421, and is used for the material to fall from the material guide plate 4 22 falls under the second frame plate 421; when the tray moving structure 44 moves the tray to the bottom of the second frame plate 421, the material passes through the material guide plate 422 and the hollow of the second frame plate 421 and falls onto the tray. After the tray receives a predetermined amount of material, the tray moving structure 44 transports the tray that has received the material to the second tray position structure 43 for placement; further, the structure of the tray lifting part 423 is similar to the tray part 413, and the tray lifting part 423 is used to lift the tray that receives the material, so that the tray moving structure 44 can be freed and the tray moving structure 44 can perform other tasks.

[0051] Specifically, the tray lifting part 423 includes a third driving unit 4231 and a lifting plate 4232 connected to the output shaft of the third driving unit 4231; the two tray lifting parts 423 are relatively arranged on the central axis of the lower end surface of the second frame plate 421. Before the tray is lifted, the third driving unit 4231 drives the lifting plate 4232 to retreat, and the tray moving structure 44 moves the tray to the bottom of the second frame plate 421, and then rises. After the tray rises above the lifting plate 4232, the third driving unit 4231 drives the lifting plate 4232 to extend forward, and the tray moving structure 44 descends, so that the tray falls on the lifting plate 4232 and is lifted by the lifting plate 4232.

[0052] See also Figures 15 to 22In some embodiments, the second material tray position structure 43 includes a third frame plate 431 and a plurality of top trays 432, the plurality of top trays 432 are arranged at a predetermined distance along the periphery of the third frame plate 431, the top tray 432 includes a top seat 4321, a support block 4322, a pivot 4323 and a positioning shaft 4324, the top seat 4321 is connected to the third frame plate 431, the support block 4322 is connected to the top seat 4321 via the pivot 4323, the positioning shaft 4324 is connected to the top seat 4321, and is used to limit the support block 4322; it should be noted that after receiving the material, the material tray is transported to the designated Position, for full automation, and combined with the structure of the present device, it is unreasonable to arrange a robot to stack up the trays that receive materials. The present solution is to stack the trays from the bottom, that is, to stack them up one by one; the third frame plate 431 has the same structure as the first frame plate 411, that is, the trays can move up and down from the hollow part of the third frame plate 431, and the trays that receive materials are moved to the bottom of the third frame plate 431 by the tray moving structure 44, and then rise. After rising to exceed the support block 4322, the tray moving structure 44 descends, causing the trays that receive materials to fall and be supported by the support block 4322.

[0053] Specifically, the working process of the top plate 432 is described. The top plate 432 includes a top seat 4321, a support block 4322, a pivot 4323 and a positioning shaft 4324. The support block 4322 is connected to the top seat 4321 through the pivot 4323. The positioning shaft 4324 is also connected to the top seat 4321. The pivot 4323 and the positioning shaft 4324 are arranged in parallel. The horizontal height of the positioning shaft 4324 is lower than the horizontal height of the pivot 4323. When the support block 4322 is connected to the top seat 4321 through the pivot 4323, the positioning shaft 4324 is also connected to the top seat 4321. When the tray 22 is lifted up from the bottom, the support block 4322 is lifted up with the pivot 4323 as the center, and moves as a pointer. When the tray is lifted up to a height that causes the tray to separate and contact with the support block 4322, the free end of the support block 4322 falls freely with the pivot 4323 as the center due to its own weight to the limited position by the positioning shaft 4324, and the tray moving structure 44 descends, so that the tray falls on the upper end surface of the support block 4322, and so on. At this point, the tray that has collected the material has completed the work of stacking from the bottom to the top.

[0054] Furthermore, in order to smoothly lift and stack the material trays, it is necessary to prevent the support block 4322 from freely falling toward the end away from the positioning shaft 4324 with the pivot 4323 as the axis when the support block 4322 is lifted upward; it is necessary to ensure that when the free end of the support block 4322 is lifted to the highest point by the material tray, the angle between the support block 4322 and the horizontal plane is less than degrees. This is to ensure that when the support block 4322 is lifted upward, the support block 4322 is pivoted 4323 as the axis and does not fall freely toward the end away from the positioning shaft 4324. The support block 4322 freely falls toward the end away from the positioning shaft 4324, otherwise a worker is required to manually move the support block 4322 back to its original position. Specifically, the free end of the support block 4322 is at an acute angle. When the support block 4322 is limited by the positioning shaft 4324, the upper inclined surface 43221 of the free end of the support block 4322 is horizontal; when the lower inclined surface 43222 of the free end of the support block 4322 is 90 degrees with the horizontal plane, the support block 4322 as a whole is less than 90 degrees with the horizontal plane.

[0055] See also Fig.23 and Fig.24 Preferably, the tray moving structure 44 includes a Y-axis drive unit 441 and a lifting part 442, the lifting part 442 includes a Z-axis drive unit 4421, a top plate 4422 and a suction device 4423, the top plate 4422 is connected to the output shaft of the Z-axis drive unit 4421, and the output shaft of the Z-axis drive unit 4421 is connected to the output shaft of the Y-axis drive unit 441; a through hole is provided on the top plate 4422, and the suction device 4423 is arranged in the through hole; it should be noted that the top plate 4422 is used to carry the tray, and the tray moving structure 44 including the Y-axis drive unit 441, the Z-axis drive unit 4421 and the top plate 4422 is of conventional design, which will not be repeated here.

[0056] In the above embodiment, the top plate 4422 is used to support the material tray. The material tray on the first material tray position structure 41 falls onto the top plate 4422 due to the material tray's own gravity. However, the material tray's own gravity alone is often not enough. For this reason, it is necessary to provide an adsorber 4423 on the top plate 4422. The uppermost end of the adsorber 4423 does not exceed the upper end surface of the top plate 4422. The adsorber 4423 can adopt an air suction method. When the top plate 4422 is attached to the bottom of the lowest material tray on the first material tray position structure 41, the adsorber 4423 is used to suck the bottom of the lowest material tray, and then the top plate 4422 is lowered by the Z-axis drive unit 4421. In this way, the lowest material tray can be smoothly adsorbed onto the top plate 4422.

[0057] In some embodiments, there are two lifting parts 442, and the two lifting parts 442 are connected to the output shaft of the Y-axis drive unit 441 through a connecting plate; the distance between the first material tray position structure 41 and the material receiving position structure 42 is equal to the distance between the material receiving position structure 42 and the second material tray position structure 43, and the distance between the two lifting parts 442 is also equal to the distance between the first material tray position structure 41 and the material receiving position structure 42; when the first lifting part 442 is located directly below the first material tray position structure 41, the second lifting part 442 is located directly below the material receiving position structure 42, and when the first lifting part 442 is located directly below the material receiving position structure 42, the second lifting part 442 is located directly below the second material tray position structure 43. Specifically, this can improve work efficiency and improve the fluency of automation. Specifically, during the initial operation, the first lifting part 442 goes to the bottom of the first material tray position structure 41 to take the bottom material tray, and the second lifting part 442 follows; during non-initial operation, the first lifting part 442 goes to the bottom of the first material tray position structure 41 to take the bottom material tray, and at the same time, the second lifting part 442 waits for the material tray to receive materials directly under the material receiving position structure 42. When the material tray receives a predetermined amount of material, the second lifting part 442 grabs the material tray after receiving the material. Driven by the Y-axis driving unit 441, the first lifting part 442 brings the empty material tray to the bottom of the material receiving position structure 42, and the second lifting part 442 brings the material tray that receives the material to the bottom of the second material tray position structure 43, and so on.

[0058] It should be noted that the structures of the good product collection mechanism 5 and the defective product collection mechanism 4 are the same; the good product collection mechanism 5 and the defective product collection mechanism 4 are only relative, and the good product collection mechanism 5 can also be used to collect defective materials, and correspondingly, the defective product collection mechanism 4 can be used to collect good materials. The above embodiment is illustrated by the defective product collection mechanism 4, but in the specific implementation process, the defective product collection mechanism 4 can also not have such a complex mechanical structure, because since some materials are defective, only a larger material frame needs to be set in the defective product collection area to receive them.

Claims

1. A product sorting machine, characterized in that: It comprises a frame and a first conveying mechanism (1), a sorting mechanism (2), a second conveying mechanism (3), a defective product collecting mechanism (4) and a good product collecting mechanism (5) arranged on the frame; The first conveying mechanism (1) comprises a first conveying belt (11) and a visual detector (12) arranged above the first conveying belt (11); The sorting mechanism (2) is arranged at the rear end of the first conveying mechanism (1), and is used to convey the products conveyed by the first conveyor belt (11) to the defective product collection mechanism (4) or to the second conveying mechanism (3) and convey the products to the good product collection mechanism (5) through the second conveying mechanism (3) according to the information transmitted by the visual detector (12).

2. The product sorting machine according to claim 1, characterized in that: The sorting mechanism (2) comprises a first bracket (21), a first motor (22), a sorting conveying part (23) and a second motor (24); the first bracket (21) is provided with a U-shaped groove; the main body of the sorting conveying part (23) is arranged in the U-shaped groove of the first bracket (21) via a rotating shaft (25); the first motor (22) is arranged outside the U-shaped groove; the output shaft of the first motor (22) is transmission-connected to the rotating shaft (25); the second motor (24) is transmission-connected to the sorting conveying part (23) and is used to drive a belt of the sorting conveying part (23).

3. The product sorting machine according to claim 2, characterized in that: The sorting mechanism (2) further comprises a limiting portion (26), the limiting portion (26) comprising a first limiting block (261), a second limiting block (262) and a stopper (263); one end of the rotating shaft (25) away from the first motor (22) passes through the U-shaped groove and extends outward; the first limiting block (261) and the second limiting block (262) are respectively arranged on the outer side of the first bracket (21) away from the first motor (22) and are located on both sides of the free end of the rotating shaft (25); the stopper (263) is connected to the free end of the rotating shaft (25); and the stopper (263) is provided with a first limiting rod (2631) and a second limiting rod (2632), and corresponds to the first limiting block (261) and the second limiting block (262).

4. The product sorting machine according to claim 1, characterized in that: The defective product collection mechanism (4) comprises a first material tray position structure (41), a material receiving position structure (42), a second material tray position structure (43) and a material tray moving structure (44), wherein the first material tray position structure (41) and the second material tray position structure (43) are respectively arranged on both sides of the material receiving position structure (42); the first material tray position structure (41) is used to stack material trays to be received, and the material tray moving structure (44) is arranged below the material receiving position structure (42) and is used to take a material tray at the first material tray position structure (41) and send it to the second material tray position structure (43) after receiving the material.

5. The product sorting machine according to claim 4, characterized in that: The first material tray position structure (41) comprises a first frame plate (411), and limiting angle irons (412) are provided at the four corner edges of the inner hole of the first frame plate (411). A tray portion (413) and a limiting plate portion (414) are provided at both ends of the first frame plate (411), respectively. The tray portion (413) comprises a first drive unit (4131) and a support plate (4132) connected to the output shaft of the first drive unit (4131), and the limiting plate portion (414) comprises a second drive unit (4141) and a limiting plate (4142) connected to the output shaft of the second drive unit (4141).

6. The product sorting machine according to claim 4, characterized in that: The material receiving position structure (42) comprises a second frame plate (421), the upper end surface of the second frame plate (421) is provided with a material guide plate (422), and the lower end surface of the second frame plate (421) is provided with a plate lifting portion (423) for lifting the plate at both ends; the plate lifting portion (423) comprises a third driving unit (4231) and a material lifting plate (4232) connected to the output shaft of the third driving unit (4231).

7. The product sorting machine according to claim 4, characterized in that: The second material tray position structure (43) comprises a third frame plate (431) and a plurality of top tray parts (432), the plurality of top tray parts (432) being arranged at predetermined intervals along the periphery of the third frame plate (431), the top tray part (432) comprising a top seat (4321), a support block (4322), a pivot (4323) and a positioning shaft (4324), the top seat (4321) being connected to the third frame plate (431), the support block (4322) being connected to the top seat (4321) via the pivot (4323), and the positioning shaft (4324). The positioning shaft (4324) is connected to the top seat (4321) and is used to limit the support block (4322); the free end of the support block (4322) is at an acute angle, and when the support block (4322) is limited by the positioning shaft (4324), the upper inclined surface (43221) of the free end of the support block (4322) is in a horizontal state; when the lower inclined surface (43222) of the free end of the support block (4322) is 90 degrees to the horizontal plane, the support block (4322) as a whole is less than 90 degrees to the horizontal plane.

8. The product sorting machine according to claim 4, characterized in that: The tray moving structure (44) comprises a Y-axis driving unit (441) and a lifting part (442); the lifting part (442) comprises a Z-axis driving unit (4421), a top plate (4422) and an absorber (4423); the top plate (4422) is connected to the output shaft of the Z-axis driving unit (4421); the output shaft of the Z-axis driving unit (4421) is connected to the output shaft of the Y-axis driving unit (441); a through hole is provided on the top plate (4422), and the absorber (4423) is arranged in the through hole.

9. The product sorting machine according to claim 8, characterized in that: The two lifting parts (442) are connected via a connecting plate and an output shaft of a Y-axis driving unit (441); the distance between the first material tray position structure (41) and the material receiving position structure (42) is equal to the distance between the material receiving position structure (42) and the second material tray position structure (43); the distance between the two lifting parts (442) is also equal to the distance between the first material tray position structure (41) and the material receiving position structure (42); when the first lifting part (442) is located directly below the first material tray position structure (41), the second lifting part (442) is located directly below the material receiving position structure (42); when the first lifting part (442) is located directly below the material receiving position structure (42), the second lifting part (442) is located directly below the second material tray position structure (43).

10. The product sorting machine according to any one of claims 4 to 9, characterized in that: The good product collecting mechanism (5) and the bad product collecting mechanism (4) have the same structure.

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