Automatic loading and unloading machine

Abstract

The present application discloses an automatic loading and unloading machine, comprising: a loading mechanism, comprising a first support plate, the first support plate is used to place a loading tray, the loading tray is used to place materials to be injected; a discharging mechanism, provided with one side of the loading mechanism, the discharging mechanism comprises a second support plate, the second support plate is used to place a discharging tray, the discharging tray is used to place the injected materials; a picking mechanism, provided at the other side of the loading mechanism, the picking mechanism is used to take out the materials to be injected from the loading mechanism and place the injected materials into the discharging tray; a positioning mechanism, provided at the other side of the picking mechanism, the positioning mechanism comprises a rough positioning structure and a fine positioning structure, the rough positioning structure is used to roughly position the materials taken out from the loading mechanism, and the fine positioning structure is used to precisely position the materials taken out from the rough positioning structure. It not only reduces the labor cost, but also effectively improves the production efficiency and improves the product quality.

Description

Technical Field

[0001] The present application relates to the technical field of structural component manufacturing, and in particular to an automatic loading and unloading machine. Background Art

[0002] The injection molding of existing products generally requires operators to place metal parts on a positioning fixture, and then wait for the injection molding robot to pick up the material so that it can be implanted into the injection mold. On the one hand, it not only takes up a lot of manpower during the production process, but also easily injures the operators; on the other hand, due to the different proficiency of the operators, the production efficiency and quality cannot be guaranteed. In addition, some metal parts are automatically placed on a positioning fixture, and then the injection molding machine robot picks up the material. This type of automatic picking generally has low positioning accuracy and cannot meet the requirements of injection molding accuracy, which ultimately leads to low quality of injection molded products. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an automatic loading and unloading machine, which not only reduces labor costs, but also effectively improves production efficiency and improves product quality.

[0004] The automatic loading and unloading machine according to the embodiment of the present application includes: a loading mechanism, including a first support plate, the first support plate is used to place a loading tray, and the loading tray is used to place the material to be injected; a unloading mechanism is provided on one side of the loading mechanism, the unloading mechanism includes a second support plate, the second support plate is used to place the unloading tray, and the unloading tray is used to place the injected material; a picking mechanism is provided on the other side of the loading mechanism, the picking mechanism is used to take the material to be injected from the loading mechanism and place the injected material into the unloading tray; a positioning mechanism is provided on the other side of the picking mechanism, the positioning mechanism includes a coarse positioning structure and a fine positioning structure, the coarse positioning structure is used to roughly position the material taken out from the loading mechanism, and the fine positioning structure is used to precisely position the material taken out from the coarse positioning structure.

[0005] The automatic loading and unloading machine according to the embodiment of the present application has at least the following beneficial effects: the material to be injected is automatically taken from the loading tray by the material taking mechanism, the material to be injected is placed in the rough positioning structure for rough positioning, and then the material in the rough positioning structure is taken out by the material taking mechanism and placed in the fine positioning structure so that the injection molding material can be implanted into the material to be injected, and finally the injected material is taken out from the fine positioning structure by the material taking mechanism and placed in the unloading tray. Through the two positioning, the precise positioning of the material is achieved so that the material can be injected. The whole process is carried out automatically, which not only reduces the labor cost, but also effectively improves the production efficiency and product quality.

[0006] According to some embodiments of the present application, the feeding mechanism further includes a first lifting structure, the first support plate is arranged at the output end of the first lifting structure, and the first lifting structure is used to drive the first support plate to move up and down. A plurality of feeding trays can be placed on the first support plate, and after the material taking mechanism takes away the material in the feeding tray, an empty feeding tray is left, and the feeding structure can take away the empty feeding tray and place it on the second support plate of the unloading mechanism, and after the material taking mechanism takes away the empty feeding tray and places it on the second support plate, the first lifting structure rises and lifts up the feeding tray below to adapt to the height of the material taking mechanism. Then, after the material taking mechanism takes the material to the rough positioning structure, the material taking mechanism takes the empty feeding tray to the second support plate of the unloading mechanism, and then the first lifting structure rises again. Until all the materials to be injected and the feeding tray on the first support plate are taken away by the feeding mechanism, the first lifting structure is lowered again, and multiple feeding trays with materials to be injected are placed again, and then the next round of feeding is carried out.

[0007] According to some embodiments of the present application, the unloading mechanism includes a second lifting structure, and the second support plate is arranged at the output end of the second lifting structure, and the second lifting structure is used to drive the second support plate to move up and down. A unloading tray is placed on the second support plate. When the material picking mechanism fills the unloading tray with the injection molded material, the material picking mechanism places the empty unloading tray on the unloading tray filled with the injection molded material. At this time, the second lifting structure descends to adapt to the height at which the material picking mechanism places the material. This cycle is repeated until the second lifting structure descends to the lowest point, and all the unloading trays filled with the injection molded material are taken away. Then the second lifting structure is raised to start the next round of unloading.

[0008] According to some embodiments of the present application, the coarse positioning structure includes a first support frame and a third support plate, the third support plate is connected to the upper end of the first support frame, the third support plate forms a first angle with the first support plate, and at least one coarse positioning groove is provided on the third support plate, and the coarse positioning groove is used to slide the material to a preset corner by the inclined setting of the third support plate. By forming the first angle between the third support plate and the first support frame, when the material taking mechanism takes out the material from the feeding mechanism and places it on the third support plate of the coarse positioning mechanism, due to the inclined setting of the third support plate, gravity can be used to make the material slide to the preset corner of the third support plate, thereby achieving the purpose of coarse positioning. The coarse positioning structure is simple to set up and achieves the purpose of automatic positioning. The efficiency of positioning is effectively improved.

[0009] According to some embodiments of the present application, a plurality of rough positioning grooves are provided on the third support plate, so that each rough positioning groove can realize rough positioning independently without affecting each other, further improving the efficiency of positioning.

[0010] According to some embodiments of the present application, four rough positioning grooves are provided on the third support plate. The four rough positioning grooves can be adjacent to each other through a partition, which further improves the positioning efficiency and the utilization rate of the space, thereby achieving a balance between efficiency and floor space.

[0011] According to some embodiments of the present application, the fine positioning structure includes a second support frame and a fourth support plate, the fourth support plate is arranged at the upper end of the second support frame, the fourth support plate is placed horizontally, and at least one fine positioning groove is arranged on the fourth support plate. By arranging the fine positioning groove on the horizontally placed fourth support plate, the material taken out from the rough positioning structure by the material taking mechanism can be accurately positioned, so as to facilitate the injection molding of the material to be injected at the preset position, effectively improve the positioning accuracy, thereby improving the injection molding accuracy and improving the quality of the product.

[0012] According to some embodiments of the present application, four precise positioning grooves are provided on the fourth support plate. By providing four precise positioning grooves, the efficiency of precise positioning can be effectively improved. A balance is achieved between the precise positioning efficiency and the floor space occupied, and while further improving the precise positioning efficiency, the utilization rate of the space is improved.

[0013] According to some embodiments of the present application, the material taking mechanism includes a mechanical arm and at least one suction nozzle, and the suction nozzle is arranged at the lower end of the mechanical arm. The transfer movement of the mechanical arm drives the suction nozzle arranged at the lower end of the mechanical arm to rotate, and the suction nozzle realizes the action of taking and releasing the material by sucking or putting down the material, and conveniently performs the action of loading and unloading the material. The efficiency of loading and unloading the material is effectively improved.

[0014] According to some embodiments of the present application, four suction nozzles are arranged at the lower end of the robot arm. By arranging four suction nozzles at the lower end of the robot arm, four materials can be taken out at one time, which effectively improves the efficiency of loading and unloading.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic loading and unloading machine of the embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the overall structure of the automatic loading and unloading machine from another angle according to an embodiment of the present application.

[0019] Reference numerals:

[0020] The loading mechanism 100, the first support plate 110, the first lifting structure 120, the loading tray 130, the unloading mechanism 200, the second support plate 210, the second lifting structure 220, the unloading tray 230, the picking mechanism 300, the robotic arm 310, the suction nozzle 320, the positioning mechanism 400, the rough positioning structure 410, the first support frame 411, the third support plate 412, the rough positioning groove 413, the fine positioning structure 420, the second support frame 421, the fourth support plate 422, and the fine positioning groove 423. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0022] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of this application, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution. The above is a detailed description of the embodiments of the present application in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of this application.

[0025] Reference Figure 1The automatic loading and unloading machine of the embodiment of the present application includes: a loading mechanism 100, including a first support plate 110, the first support plate 110 is used to place a loading tray 130, and the loading tray 130 is used to place the material to be injected; a unloading mechanism 200 is provided on one side of the loading mechanism 100, and the unloading mechanism 200 includes a second support plate 210, and the second support plate 210 is used to place the unloading tray 230, and the unloading tray 230 is used to place the injected material; a material taking mechanism 300 is provided on the loading machine On the other side of the material taking mechanism 100, the material taking mechanism 300 is used to take the material to be injected from the loading mechanism 100 and place the injected material in the unloading tray 230; the positioning mechanism 400 is arranged on the other side of the material taking mechanism 300, and the positioning mechanism 400 includes a coarse positioning structure 410 and a fine positioning structure 420. The coarse positioning structure 410 is used to roughly position the material taken out from the loading mechanism 100, and the fine positioning structure 420 is used to accurately position the material taken out from the coarse positioning structure 410.

[0026] Specifically, a plurality of loading trays 130 can be placed on the first support plate 110. When the material taking mechanism 300 takes away all the materials in the loading tray 130, the loading mechanism 300 takes away the empty loading tray 130 and places it on the second support plate 210. At this time, the empty loading tray 130 will be used as the unloading tray 230 for placing the injected materials. When the unloading tray 230 on the second support plate 210 is full of injected materials, the empty loading tray 130 is placed on the unloading tray 230 full of injected materials by the loading mechanism 300. On the one hand, the floor space occupied by the unloading tray 230 of the production line can be effectively saved, and on the other hand, the efficiency of loading and unloading can also be improved. Among them, since the materials to be injected are placed in a disorderly manner in the loading tray 130, when the material picking mechanism 300 picks up the materials to be injected, the positions of the materials to be injected sucked by the suction nozzle 320 are different. The materials to be injected are first placed in the rough positioning groove 413, which can perform a rough positioning on the materials to be injected. Then, the material picking mechanism 300 takes out the materials placed in the rough positioning groove 413 and places them in the fine positioning groove 423, which can achieve precise alignment of the materials to be injected, thereby improving the injection molding accuracy.

[0027] The material to be injected is automatically taken from the loading tray 130 by the material taking mechanism 300, and the material to be injected is placed in the rough positioning structure 410 for rough positioning, and then the material in the rough positioning structure 410 is taken out by the material taking mechanism 300 and placed in the fine positioning structure 420, so that the injection material is implanted into the material to be injected, and finally the injected material is taken out from the fine positioning structure 420 by the material taking mechanism 300 and placed in the unloading tray 230. Through the two positioning, the material is accurately positioned so that the material can be injected. The whole process is carried out automatically, which not only reduces the labor cost, but also effectively improves the production efficiency and product quality.

[0028] In some embodiments of the present application, the loading mechanism 100 further includes a first lifting structure 120, and the first support plate 110 is disposed at the output end of the first lifting structure 120, and the first lifting structure 120 is used to drive the first support plate 110 to move up and down. A plurality of loading trays 130 can be placed on the first support plate 110, and after the material taking mechanism 300 takes away the material in the loading tray 130, an empty loading tray 130 is left, and the loading structure can take away the empty loading tray 130 and place it on the second support plate 210 of the unloading mechanism 200, and after the material taking mechanism 300 takes away the empty loading tray 130 and places it on the second support plate 210, the first lifting structure 120 rises and lifts up the loading tray 130 below to adapt to the height of the material taking mechanism 300. Then, after the material is taken to the rough positioning structure 410 by the material taking mechanism 300, the empty loading tray 130 is taken to the second support plate 210 of the unloading mechanism 200 by the material taking mechanism 300, and then the first lifting structure 120 rises again. Until all the materials to be injected and the loading tray 130 on the first support plate 110 are taken away by the material taking mechanism 300, the first lifting structure 120 is lowered again, and multiple loading trays 130 with materials to be injected are placed again before the next round of loading is carried out.

[0029] In some embodiments of the present application, the unloading mechanism 200 includes a second lifting structure 220, and the second support plate 210 is arranged at the output end of the second lifting structure 220. The second lifting structure 220 is used to drive the second support plate 210 to move up and down. A unloading tray 230 is placed on the second support plate 210. When the material picking mechanism 300 fills the unloading tray 230 with the injection molded material, the material picking mechanism 300 places the empty unloading tray 230 on the unloading tray 230 filled with the injection molded material. At this time, the second lifting structure 220 descends to adapt to the height of the material placed by the material picking mechanism 300. This cycle is repeated until the second lifting structure 220 descends to the lowest point, and all the unloading trays 230 filled with the injection molded material are taken away. Then the second lifting structure 220 is raised to start the next round of unloading.

[0030] Specifically, when the material picking mechanism 300 takes away all the materials to be injected in the loading tray 130, the material picking mechanism 300 takes away the empty loading tray 130 and places it on the second support plate 210; the first lifting structure 120 rises a preset stepping distance to adapt to the height at which the material picking mechanism 300 picks up materials. After the empty loading tray 130 on the first support plate 110 is taken away, the loading tray 130 below which is full of materials to be injected is exposed, and the above steps are repeated to complete the next round of loading; when the material picking mechanism 300 places the empty loading tray 130 on the second support plate 210, the empty loading tray 130 will be used as the unloading tray 230 for placing the injected materials. At this time, the second lifting structure 220 descends a preset stepping distance to adapt to the height at which the material picking mechanism 300 discharges materials. After the unloading tray 230 is full of injected materials, the above steps are repeated to complete the next round of unloading.

[0031] Reference Figure 2 In some embodiments of the present application, the rough positioning structure 410 includes a first support frame 411 and a third support plate 412, the third support plate 412 is connected to the upper end of the first support frame 411, the third support plate 412 forms a first angle with the first support plate 110, and at least one rough positioning groove 413 is provided on the third support plate 412, and the rough positioning groove 413 is used to slide the material to a preset corner by the inclined setting of the third support plate. By forming the first angle between the third support plate 412 and the first support frame 411, when the material taking mechanism 300 takes out the material from the feeding mechanism 100 and places it on the third support plate 412 of the rough positioning mechanism 400, due to the inclined setting of the third support plate 412, gravity can be used to make the material slide to the preset corner of the third support plate 412, so as to achieve the purpose of rough positioning. The rough positioning structure 410 is simple to set and achieves the purpose of automatic positioning. The efficiency of positioning is effectively improved.

[0032] In some embodiments of the present application, a plurality of rough positioning grooves 413 are provided on the third support plate 412, and a partition is provided between each rough positioning groove 413. Each rough positioning groove 413 is separated by a partition, so that each rough positioning groove 413 can achieve the purpose of rough positioning independently without affecting each other, further improving the efficiency of positioning.

[0033] In some embodiments of the present application, four rough positioning grooves 413 are provided on the third support plate 412. The four rough positioning grooves 413 can be adjacent to each other through partitions, which further improves the positioning efficiency while improving the utilization of space, thereby achieving a balance between efficiency and floor space.

[0034] In some embodiments of the present application, the fine positioning structure 420 includes a second support frame 421 and a fourth support plate 422, the fourth support plate 422 is arranged at the upper end of the second support frame 421, the fourth support plate 422 is placed horizontally, and at least one fine positioning groove 423 is arranged on the fourth support plate 422. By arranging the fine positioning groove 423 on the horizontally placed fourth support plate 422, the material taken out from the rough positioning structure 410 by the material taking mechanism 300 can be accurately positioned, so as to facilitate the injection molding of the preset position of the injection material, effectively improve the positioning accuracy, thereby improving the injection molding accuracy and improving the quality of the product.

[0035] In some embodiments of the present application, four precise positioning grooves 423 are provided on the fourth support plate 422. By providing four precise positioning grooves 423, the efficiency of precise positioning can be effectively improved. A balance is achieved between the precise positioning efficiency and the occupied area, and while further improving the precise positioning efficiency, the utilization rate of the space is improved.

[0036] In some embodiments of the present application, the material taking mechanism 300 includes a mechanical arm 310 and at least one suction nozzle 320, and the suction nozzle 320 is arranged at the lower end of the mechanical arm 310. The transfer movement of the mechanical arm 310 drives the suction nozzle 320 arranged at the lower end of the mechanical arm 310 to rotate, and the suction nozzle 320 realizes the action of taking and releasing the material by sucking or putting down the material, and conveniently performs the action of loading and unloading the material. The efficiency of loading and unloading the material is effectively improved.

[0037] In some embodiments of the present application, four suction nozzles 320 are provided at the lower end of the robot arm 310. By providing four suction nozzles 320 at the lower end of the robot arm 310, four materials can be taken out at one time, which effectively improves the efficiency of loading and unloading.

[0038] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

[0039] Reference below Figure 1 to Figure 2 , the automatic loading and unloading machine according to the embodiment of the present application is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present application.

[0040] Reference Figures 1 to 2The embodiment of the present application provides an automatic loading and unloading machine, including: a loading mechanism 100, including a first support plate 110 and a first lifting structure 120, the first support plate 110 is arranged at the output end of the first lifting structure 120, the first lifting structure 120 is used to drive the first support plate 110 to move up and down, the first support plate 110 is used to place a loading tray 130, and the loading tray 130 is used to place the material to be injected; a unloading mechanism 200, which is provided on one side of the loading mechanism 100, and the unloading mechanism 200 includes a second support plate 210 and a second lifting structure. The second lifting structure 220 is provided with a second support plate 210 at the output end of the second lifting structure 220, and the second lifting structure 220 is used to drive the second support plate 210 to move up and down, and the second support plate 210 is used to place a material unloading tray 230, and the material unloading tray 230 is used to place the injection molded material; the material picking mechanism 300 is provided at the other side of the feeding mechanism 100, and the material picking mechanism 300 includes a mechanical arm 310 and four suction nozzles 320, and the four suction nozzles 320 are provided at the lower end of the mechanical arm 310, and the mechanical arm 310 is used to drive the four suction nozzles 320 to move above the material so that The suction nozzle 320 sucks the material to be injected from the feeding mechanism 100 and places the injected material into the unloading tray 230; the positioning mechanism 400 is arranged on the other side of the material taking mechanism 300, and the positioning mechanism 400 includes a rough positioning structure 410 and a fine positioning structure 420, the rough positioning structure 410 includes a first support frame 411 and a third support plate 412, the third support plate 412 is connected to the upper end of the first support frame 411, the third support plate 412 forms a first angle with the first support plate 110, and the third support plate 412 is provided with four rough positioning Slot 413, the coarse positioning slot 413 is used to slide the material to a preset corner through the inclined setting of the third support plate, the coarse positioning structure 410 is used to coarsely position the material taken out from the feeding mechanism 100, and the fine positioning structure 420 includes a second support frame 421 and a fourth support plate 422, the fourth support plate 422 is arranged on the upper end of the second support frame 421, the fourth support plate 422 is placed horizontally, and the fourth support plate 422 is provided with up to 4 fine positioning slots 423, and the fine positioning structure 420 is used to accurately position the material taken out from the coarse positioning structure 410.

[0041] How to use:

[0042] 1. The material to be injected in the loading tray 130 placed on the first support plate 110 is taken away by the material taking mechanism 300, and placed in the rough positioning groove 413 on the rough positioning structure 410;

[0043] 2. The third support plate 412 is provided with a first inclination angle. When the material to be injected is placed in the rough positioning groove 413, the material to be injected will slide to a preset corner of the rough positioning groove 413 by gravity.

[0044] 3. The material taking mechanism 300 takes out the roughly positioned material to be injected in the rough positioning groove 413 and places it in the fine positioning groove 423 for precise positioning and injection molding;

[0045] 4. The material taking mechanism 300 takes away the injected material and places it into the unloading tray 230;

[0046] 5. When all the materials in the loading tray 130 are taken away, the material taking mechanism 300 takes away the empty loading tray 130 and places it on the second support plate 210. At this time, the empty loading tray 130 will be used as the unloading tray 230. The first lifting structure 120 rises a preset stepping distance to adapt to the material taking height of the material taking mechanism 300, completing a round of loading;

[0047] 6. When the unloading tray 230 is full of the injection molded material, the material taking mechanism 300 takes the empty loading tray 130 placed on the first support plate 110 to the top of the tray full of the injection molded material. At this time, the empty loading tray 130 will be used as the unloading tray 230, and the second lifting structure 220 will descend a preset stepping distance to adapt to the height of the unloading of the material taking mechanism 300, completing a round of unloading;

[0048] 7. When all the materials and trays on the first support plate 110 are taken away by the material taking mechanism 300, the first lifting structure 120 is lowered to the lowest point, and a preset number of loading trays 130 filled with materials to be injected are placed on the first support plate 110; when the second lifting structure 220 is lowered to the lowest point, all the unloading trays 230 filled with injected materials are taken away, and the second lifting structure 220 is raised to the preset highest point, waiting for the material taking mechanism 300 to place the empty loading trays 130 on the second support plate 210.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An automatic loading and unloading machine, It is characterized in that include: A feeding mechanism, comprising a first support plate, the first support plate is used to place a feeding tray, the feeding tray is used to place the material to be injected, the feeding mechanism also comprises a first lifting structure, the first support plate is arranged at the output end of the first lifting structure, the first lifting structure is used to drive the first support plate to move up and down; A material unloading mechanism is provided on one side of the material loading mechanism, the material unloading mechanism comprises a second support plate, the second support plate is used to place a material unloading tray, the material unloading tray is used to place the injection molded material, the material unloading mechanism further comprises a second lifting structure, the second support plate is provided at the output end of the second lifting structure, the second lifting structure is used to drive the second support plate to move up and down; A material taking mechanism is arranged at the other side of the feeding mechanism, and is used to take out the material to be injected from the feeding mechanism and place the injected material into the unloading tray. The material taking mechanism includes a mechanical arm and at least one suction nozzle, and the suction nozzle is arranged at the lower end of the mechanical arm; The positioning mechanism is arranged on the other side of the material picking mechanism, and the positioning mechanism includes a coarse positioning structure and a fine positioning structure. The coarse positioning structure is used to roughly position the material taken out from the feeding mechanism, and the fine positioning structure is used to accurately position the material taken out from the coarse positioning structure. The coarse positioning structure includes a first support frame and a third support plate, the third support plate is connected to the upper end of the first support frame, the third support plate forms a first angle with the first support frame, and at least one coarse positioning groove is arranged on the third support plate, and the coarse positioning groove is used to slide the material to a preset corner through the inclined setting of the third support plate, and the fine positioning structure includes a second support frame and a fourth support plate, the fourth support plate is arranged on the upper end of the second support frame, the fourth support plate is placed horizontally, and at least one fine positioning groove is arranged on the fourth support plate.

2. The automatic loading and unloading machine according to claim 1, It is characterized in that The third support plate is provided with a plurality of the rough positioning grooves.

3. The automatic loading and unloading machine according to claim 2, It is characterized in that The third support plate is provided with four rough positioning grooves.

4. The automatic loading and unloading machine according to claim 1, It is characterized in that The fourth support plate is provided with four precise positioning grooves.

5. The automatic loading and unloading machine according to claim 1, It is characterized in that The lower end of the mechanical arm is provided with four suction nozzles.

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