Automatic jacket detection machine

Abstract

The utility model discloses an automatic jacket detection machine, which relates to the technical field of jacket metal pipe product detection and comprises a detection box, a detection table is arranged in the detection box, and a first height detection mechanism, a turnover mechanism, a second height detection mechanism and a rotary detection mechanism are sequentially arranged on the detection table. The detection box is further provided with a conveying mechanism, products are intermittently conveyed through the conveying mechanism, the products sequentially pass through the first height detection mechanism, the turnover mechanism, the second height detection mechanism and the rotary detection mechanism, and the two ends and chamfers of the products are detected. According to the scheme, universality is high, mold changing is convenient, pneumatic control is adopted, the speed control characteristic of the sliding plate is good, positioning is accurate, action is stable, the number of product photos stored by an industrial computer and a camera is large, and program calling is rapid. The equipment adopts dual protection on mechanical and electrical programs, and compared with the prior art, the performance is optimized greatly.

Description

Technical Field

[0001] The utility model relates to the technical field of outer jacket metal tube product detection, in particular to an outer jacket automatic detection machine. Background Art

[0002] With the development of industry, upstream assembly manufacturers have stricter requirements on the accuracy and quality of workpieces. 100% dimensional inspection, but metal pipes have various specifications, with different wall thickness, weight, diameter, and height. The original inspection was all manual inspection, which was prone to manual fatigue and high cost. In addition, the manual function was single, relying on manual visual observation to see if there was any missed inspection. It was impossible to implement multiple inspection methods, and the manual work time was long and the intensity was high. In order to solve the problems of convenient manual loading and unloading, flexible position adjustment, and automatic screening of products, high-quality dimensional inspection can be completed. The inventor has studied and improved the existing jacket inspection process structure, and the automatic jacket inspection machine of this case was produced. Utility Model Content

[0003] The utility model aims to provide an automatic coat inspection machine, which aims to overcome the shortcomings of the original coat inspection technology and provide an automatic coat inspection machine with small footprint, strong operational flexibility, convenient inspection and stable performance.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] An automatic coat inspection machine comprises an inspection box, wherein an inspection platform is arranged in the inspection box, and a first height inspection mechanism, a flipping mechanism, a second height inspection mechanism and a rotation inspection mechanism are arranged on the inspection platform in sequence. A conveying mechanism is also arranged on the inspection box, and products are intermittently transported by the conveying mechanism, and pass through the first height inspection mechanism, the flipping mechanism, the second height inspection mechanism and the rotation inspection mechanism in sequence, so that both ends and chamfers of the products are inspected.

[0006] As a further solution of the utility model: a first conveying track is fixedly installed on the inspection table, a second conveying track is fixedly installed on the first conveying track, four through holes are opened on the second conveying track, high defective product slides are arranged below two of the through holes, a chamfered defective product slide is arranged below one of the through holes, a discharge channel is arranged at one end of the second conveying track, cylinder 1 and cylinder 2 are arranged on one side of the second conveying track, an L-shaped push plate 1 is fixedly installed on the piston rod of the cylinder 1, and an L-shaped push plate 2 is fixedly installed on the piston rod of the cylinder 2.

[0007] As a further solution of the utility model: the rotation detection mechanism includes a fixed plate fixedly mounted on the detection platform, a cylinder nine is fixedly mounted on the top of the fixed plate, a piston rod of the cylinder nine passes through the fixed plate and is connected to the center positioning cone, a cylinder ten is fixedly mounted on the bottom of the detection platform, a driving motor is fixedly mounted on the top of the cylinder ten, a lifting platform is fixedly mounted on the output shaft of the driving motor, the lifting platform corresponds to the center positioning cone, and a visual camera is arranged on one side of the lifting platform.

[0008] As a further solution of the utility model: the first height detection mechanism and the second height detection mechanism both include a detection box frame, a detection lifting cylinder is fixedly installed on the detection box frame, a lifting plate is fixedly installed on the piston rod of the detection lifting cylinder, three slide grooves are arranged at equal angles on the lifting plate, an adjusting slider is slidably connected to the slide groove, an adjusting screw is arranged on the adjusting slider, and the adjusting screw passes through the adjusting slider and is connected to the contact probe type precision detection pen.

[0009] As a further solution of the utility model: the flipping mechanism includes a horizontally arranged cylinder seven, a cylinder eight is vertically installed on the top of the cylinder seven, a rotating motor is vertically installed on the piston rod of the cylinder eight, and a mechanical clamp two is fixedly installed on the output shaft of the rotating motor.

[0010] As a further solution of the utility model: the conveying mechanism includes a cylinder three fixedly installed on the detection table, a sliding plate is fixedly installed on the piston rod of the cylinder three, a cylinder four is vertically installed on the sliding plate, a conveying movable plate is fixedly installed on the piston rod of the cylinder four, a cross bar one is slidably arranged on the conveying movable plate, a cross bar two is slidably arranged on one side of the cross bar one, a clamping rod one and a clamping rod two are respectively arranged on the cross bar one and the cross bar two, the clamping rod one and the clamping rod two are cross-arranged, and a cylinder five and a cylinder six are also symmetrically installed on the conveying movable plate, an adjusting rod one is fixedly installed on the piston rod of the cylinder five, the adjusting rod one is connected to the cross bar two, and an adjusting rod two is fixedly installed on the piston rod of the cylinder six, and the adjusting rod two is connected to the cross bar one.

[0011] As a further solution of the utility model: a picking mechanism is also installed on the detection platform, and the picking mechanism includes a picking frame fixed on the detection platform, a slide rail is horizontally installed on the picking frame, a picking horizontal cylinder is fixedly installed on the slide rail, a picking moving plate is fixedly installed on the piston rod of the picking horizontal cylinder, a picking lifting cylinder is fixedly installed on the picking moving plate, and a mechanical clamp is fixedly installed on the piston rod on the picking lifting cylinder.

[0012] As a further solution of the utility model: a feeding mechanism is provided on one side of the detection box, and the feeding mechanism includes a storage box, a conveyor belt is provided on the storage box, a blocking plate is rotatably connected to the conveyor belt, a step-type fixed plate is provided on the storage box, a pushing cylinder is provided in the storage box, a step-type feeding plate is provided on the piston rod of the pushing cylinder, the feeding plate is adapted to the step-type fixed plate, and an inclined slide is also provided in the storage box.

[0013] Beneficial effects of the utility model:

[0014] This solution is highly versatile, easy to change molds, uses pneumatic control, has good speed control characteristics for the slide plate, accurate positioning, smooth movement, uses industrial computers, the camera stores a large amount of product photos, and the program is quickly retrieved. The equipment uses dual protection in mechanical and electrical procedures, and its performance is much better than the existing technology.

[0015] 1. A contact probe type precision detection pen is used to detect the height tolerance of the jacket product. The slider drives the high-precision contact sensor to move, so that the contact probe type precision detection pen contacts the product. The quality of the product is judged according to the feedback height. If the height is not reached, it will be removed at the next station. 2. For products of different specifications, the height detection process uses manual hand-tightening screw adjustment to adjust the height, so that the equipment can be used for products of different heights. 3. Considering that the product needs to detect the outer chamfers at both ends of the jacket, the equipment contains a set of product flipping mechanism. During the height detection, a flipping detection is performed. By rotating the motor and the mechanical fixture, and through the lifting cylinder, the cylinder linkage is promoted to flip the product 180 degrees. 4. Considering that the weight of the tube body is too heavy and manual operation is inconvenient, in order to make it convenient and quick for operators to place the product, the equipment is developed to match a set of tipping bucket loading mechanism, which can be optionally equipped to reduce the intensity of manual loading. 5. Considering the low accuracy of manual visual inspection of chamfers, the outer chamfer of the product is detected by a visual camera. If the chamfer is uneven, the visual camera automatically compares it with the product data in the program to analyze and judge whether it is qualified or NG. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the detection box of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the testing platform of the utility model;

[0020] Figure 4 It is another visual structural schematic diagram of the testing platform of the utility model;

[0021] Figure 5 It is a schematic diagram of the overall structure of the rotation detection mechanism of the utility model;

[0022] Figure 6 It is a schematic diagram of the overall structure of the conveying mechanism of the utility model;

[0023] Figure 7 It is a schematic diagram of the overall structure of the turning mechanism and height detection mechanism of the utility model;

[0024] Figure 8 It is a schematic diagram of the overall structure of the feeding mechanism of the utility model;

[0025] Fig. 9 It is a schematic diagram of the internal structure of the feeding mechanism of the utility model.

[0026] In the figure: 1. feeding mechanism; 2. testing box; 3. finished product inspection table; 11. storage box; 12. conveyor belt; 13. blocking plate; 14. feeding plate; 15. slideway; 16. stepped fixed plate; 17. pushing cylinder; 21. testing table; 22. conveying mechanism; 23. picking mechanism; 24. flipping mechanism; 25. first height detection mechanism; 26. second height detection mechanism; 27. rotation detection mechanism; 211. first conveying track; 212. second conveying track; 213. slideway for high defective products; 214. slideway for chamfered defective products; 215. discharge channel; 216. product; 217. cylinder one; 218. L-type push plate one; 219. cylinder two; 210. L-type push plate two; 221. cylinder three; 222. cylinder four; 223. conveying movable plate; 224. crossbar one; 225. crossbar Rod 2; 226, clamp rod 1; 227, clamp rod 2; 228, cylinder 5; 229, adjustment rod 1; 2210, cylinder 6; 2211, adjustment rod 2; 2212, sliding plate; 231, pick-up rack; 232, slide rail; 233, pick-up horizontal cylinder; 234, pick-up moving plate; 235, pick-up lifting cylinder; 236, mechanical gripper 1; 241, cylinder 7; 242, cylinder 8; 24 3. Rotating motor; 244. Mechanical gripper two; 251. Inspection box frame; 252. Lifting plate; 253. Adjusting slider; 254. Adjusting screw; 255. Contact probe type precision inspection pen; 256. Inspection lifting cylinder; 271. Fixing plate; 272. Cylinder nine; 273. Center positioning cone; 274. Cylinder ten; 275. Driving motor; 276. Lifting platform; 277. Visual camera. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 and Figure 2 As shown, the utility model is an automatic jacket inspection machine, comprising an inspection box 2, a feeding mechanism 1 is provided on one side of the inspection box 2, a finished product inspection table 3 is provided on the other side of the inspection box 2, and the qualified finished products are finally conveyed to the finished product inspection table 3; an inspection table 21 is provided in the inspection box 2, and a first height detection mechanism 25, a flipping mechanism 24, a second height detection mechanism 26 and a rotation detection mechanism 27 are sequentially provided on the inspection table 21, and a conveying mechanism 22 is also provided on the inspection box 2, through which the product 216 is intermittently conveyed, and passes through the first height detection mechanism 25, the flipping mechanism 24, the second height detection mechanism 26 and the rotation detection mechanism 27 in sequence, and the heights and chamfers of the two ends of the product 216 are inspected, and the product 216 is a jacket metal tube product.

[0029] In this example, see Figure 3 and Figure 4 As shown, a first conveying track 211 is fixedly installed on the inspection table 21, a second conveying track 212 is fixedly installed on the first conveying track 211, and both sides of the second conveying track 212 and the first conveying track 211 are provided with limit baffles to facilitate the movement of the product 216, and four through holes are opened on the second conveying track 212, and high defective product slides 213 are arranged below two of the through holes, and a chamfered defective product slide 214 is arranged below one of the through holes, and one end of the second conveying track 212 is provided with Discharge channel 215, a cylinder 1 217 and a cylinder 2 219 are arranged on one side of the second conveying track 212, an L-shaped push plate 1 218 is fixedly installed on the piston rod of the cylinder 1 217, and an L-shaped push plate 210 is fixedly installed on the piston rod of the cylinder 2 219. The L-shaped push plate 1 218 and the L-shaped push plate 210 are inserted into the through hole to play a blocking role. When the inspection result of the product is unqualified, the cylinder drives the L-shaped push plate to withdraw, and the product falls into the chamfered defective product slide 214 or the height defective product slide 213 through the through hole.

[0030] In this example, see Figure 4 and Figure 5As shown, the rotation detection mechanism 27 includes a fixed plate 271 fixedly mounted on the detection platform 21, a cylinder nine 272 is fixedly mounted on the top of the fixed plate 271, the piston rod of the cylinder nine 272 passes through the fixed plate 271 and is connected to the center positioning cone 273, a cylinder ten 274 is fixedly mounted on the bottom of the detection platform 21, a drive motor 275 is fixedly mounted on the top of the cylinder ten 274, a lifting platform 276 is fixedly mounted on the output shaft of the drive motor 275, the lifting platform 276 corresponds to the center positioning cone 273, and a visual camera 277 is arranged on one side of the lifting platform 276.

[0031] Specifically, when the product moves to the rotating detection mechanism 27, the cylinder 274 is started to push the drive motor 275 and the lifting platform 276 to rise, and the center positioning cone 273 is lowered to contact the top of the product, and then the drive motor 275 is started to drive the product to rotate, and the visual camera 277 is used to perform 360-degree external chamfer recognition on the product. If the chamfer is uneven, the visual camera automatically compares it with the product data in the program to analyze and judge whether it is qualified or NG. The setting of the center positioning cone 273 is to achieve center positioning during rotation. And the height of the center positioning cone 273 can be adjusted to suit different types of products.

[0032] In this example, see Figure 7 As shown, the first height detection mechanism 25 and the second height detection mechanism 26 both include a detection box frame 251, on which a detection lifting cylinder 256 is fixedly installed, and on the piston rod of the detection lifting cylinder 256 a lifting plate 252 is fixedly installed, and on the lifting plate 252 three slide grooves are arranged at equal angles, and the slide grooves penetrate the lifting plate 252, and an adjusting slider 253 is slidably connected to the slide grooves, and the adjusting slider 253 can be positioned by bolts, and on the adjusting slider 253 an adjusting screw 254 is arranged, and the adjusting screw 254 penetrates the adjusting slider 253 and is connected to a contact probe type precision detection pen 255.

[0033] Specifically, a contact probe type precision inspection pen 255 is used to detect the height tolerance of the jacket product. The inspection lifting cylinder 256 drives the lifting plate 252 and the contact probe type precision inspection pen 255 to move, so that the contact probe type precision inspection pen 255 contacts the product, and the quality of the product is judged according to the feedback height. If the height is not reached, it will be removed to the next workstation. For products of different specifications, the height inspection process uses a manual hand-tightening adjustment screw 254 to adjust the height, so that the equipment can be used for products of different heights.

[0034] In this example, see Figure 7As shown, the flipping mechanism 24 includes a horizontally arranged cylinder seven 241, a cylinder eight 242 is vertically installed on the top of the cylinder seven 241, a rotating motor 243 is vertically installed on the piston rod of the cylinder eight 242, and a mechanical clamp two 244 is fixedly installed on the output shaft of the rotating motor 243.

[0035] Specifically, the position of the second mechanical clamp 244 is adjusted, the product is clamped by the second mechanical clamp 244, and then the rotary motor 243 is driven to drive the second mechanical clamp 244 to rotate 180 degrees, and then the other side of the product is inspected.

[0036] In this example, see Figure 6 As shown, the conveying mechanism 22 includes a cylinder 3 221 fixedly mounted on the detection table 21, a sliding plate 2212 is fixedly mounted on the piston rod of the cylinder 3 221, a cylinder 4 222 is vertically mounted on the sliding plate 2212, a conveying movable plate 223 is fixedly mounted on the piston rod of the cylinder 4 222, a cross bar 1 224 is slidably arranged on the conveying movable plate 223, a cross bar 225 is slidably arranged on one side of the cross bar 1 224, and the cross bar 1 224 and the cross bar 225 are slidably arranged on the other side of the cross bar 1 224. A clamping rod 1 226 and a clamping rod 227 are respectively arranged on 25, and the clamping rod 1 226 and the clamping rod 227 are cross-arranged. A cylinder 5 228 and a cylinder 6 2210 are also symmetrically installed on the conveying movable plate 223. An adjusting rod 1 229 is fixedly installed on the piston rod of the cylinder 5 228, and the adjusting rod 1 229 is connected to the cross bar 225. An adjusting rod 2211 is fixedly installed on the piston rod of the cylinder 6 2210, and the adjusting rod 2211 is connected to the cross bar 1 224.

[0037] Specifically, start cylinder four 222 to drive cross bar one 224 and cross bar two 225 to move to one side of the product, then start cylinder six 2210 and cylinder five 228 to move, clamp the product through clamp bar one 226 and clamp bar two 227, and then start cylinder three 221 to reciprocate, thereby realizing intermittent conveying of products, and can convey products of different diameters.

[0038] In this example, see Figure 3 and Figure 4As shown, the detection platform 21 is also equipped with a picking mechanism 23, which includes a picking frame 231 fixed on the detection platform 21, a slide rail 232 horizontally mounted on the picking frame 231, a picking horizontal cylinder 233 fixedly mounted on the slide rail 232, a picking moving plate 234 fixedly mounted on the piston rod of the picking horizontal cylinder 233, a picking lifting cylinder 235 fixedly mounted on the picking moving plate 234, and a mechanical gripper 236 fixedly mounted on the piston rod of the picking lifting cylinder 235. The products on the feeding mechanism 1 are transported to the detection platform 21 for detection through the picking mechanism 23.

[0039] In this example, see Figure 8 and Fig. 9 As shown, the feeding mechanism 1 includes a storage box 11, and the storage box 11 is set with an inclined surface to facilitate the automatic sliding of the product onto the stepped feeding plate 14. A conveyor belt 12 is arranged on the storage box 11, and a visual camera is arranged on the conveyor belt 12. A blocking plate 13 is rotatably connected to the conveyor belt 12, and the blocking plate 13 is driven to rotate by a motor. When the visual camera recognizes that the product is being conveyed upside down, the blocking plate 13 will rotate out, and the unqualified products will be excluded and enter the slide 15. A stepped fixing plate 16 is arranged on the storage box 11, and a pushing cylinder 17 is arranged in the storage box 11. The piston rod of the pushing cylinder 17 is provided with a stepped feeding plate 14. The ends of the stepped feeding plate 14 and the stepped fixing plate 16 are both inclined to facilitate the sliding of the product. The loading plate 14 is adapted to the stepped fixing plate 16, and an inclined slide 15 is also arranged in the storage box 11. The push cylinder 17 pushes the stepped loading plate 14 to slide up and down, and transports the products one by one to the conveyor belt.

[0040] The working principle of the utility model is as follows: the product is conveyed by the feeding mechanism 1, and then the product on the feeding mechanism 1 is placed on the first conveying track 211 by the picking mechanism 23, and then the first surface height is detected by the first height detection mechanism 25 in turn, and then the second surface height is detected by the second height detection mechanism 26 after passing through the flipping mechanism 24; and then the outer chamfer is identified by the rotating detection mechanism 27, and unqualified products are removed through the chamfer defective product slide 214 or the height defective product slide 213, and the overall conveying is intermittently conveyed by the conveying mechanism 22.

[0041] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An automatic coat inspection machine, characterized in that: The invention comprises a testing box (2), wherein a testing platform (21) is arranged in the testing box (2), and a first height detection mechanism (25), a turning mechanism (24), a second height detection mechanism (26) and a rotation detection mechanism (27) are arranged on the testing platform (21) in sequence. The testing box (2) is also provided with a conveying mechanism (22), and a product (216) is intermittently conveyed by the conveying mechanism (22), and passes through the first height detection mechanism (25), the turning mechanism (24), the second height detection mechanism (26) and the rotation detection mechanism (27) in sequence, so that the two ends and the chamfer of the product (216) are detected.

2. The automatic coat inspection machine according to claim 1, characterized in that: A first conveying track (211) is fixedly mounted on the inspection table (21), a second conveying track (212) is fixedly mounted on the first conveying track (211), four through holes are opened on the second conveying track (212), two of which are provided with high defective product slides (213) below, a chamfered defective product slide (214) below one of the through holes, a discharge channel (215) is provided at one end of the second conveying track (212), a cylinder 1 (217) and a cylinder 2 (219) are provided on one side of the second conveying track (212), an L-shaped push plate 1 (218) is fixedly mounted on the piston rod of the cylinder 1 (217), and an L-shaped push plate 2 (210) is fixedly mounted on the piston rod of the cylinder 2 (219).

3. The automatic coat inspection machine according to claim 1, characterized in that: The rotation detection mechanism (27) includes a fixed plate (271) fixedly mounted on the detection platform (21), a cylinder nine (272) fixedly mounted on the top of the fixed plate (271), a piston rod of the cylinder nine (272) passing through the fixed plate (271) and connected to a center positioning cone (273), a cylinder ten (274) fixedly mounted on the bottom of the detection platform (21), a drive motor (275) fixedly mounted on the top of the cylinder ten (274), a lifting platform (276) fixedly mounted on the output shaft of the drive motor (275), the lifting platform (276) corresponding to the center positioning cone (273), and a visual camera (277) is arranged on one side of the lifting platform (276).

4. The automatic coat inspection machine according to claim 1, characterized in that: The first height detection mechanism (25) and the second height detection mechanism (26) both include a detection box frame (251), a detection lifting cylinder (256) is fixedly installed on the detection box frame (251), a lifting plate (252) is fixedly installed on the piston rod of the detection lifting cylinder (256), three sliding grooves are arranged at equal angles on the lifting plate (252), an adjusting slider (253) is slidably connected to the sliding groove, an adjusting screw (254) is arranged on the adjusting slider (253), and the adjusting screw (254) passes through the adjusting slider (253) and is connected to a contact probe type precision detection pen (255).

5. The automatic coat inspection machine according to claim 1, characterized in that: The flipping mechanism (24) comprises a horizontally arranged cylinder seven (241), a cylinder eight (242) is vertically mounted on the top of the cylinder seven (241), a rotating motor (243) is vertically mounted on the piston rod of the cylinder eight (242), and a mechanical gripper two (244) is fixedly mounted on the output shaft of the rotating motor (243).

6. The automatic coat inspection machine according to claim 1, characterized in that: The conveying mechanism (22) comprises a cylinder three (221) fixedly mounted on the detection platform (21), a sliding plate (2212) fixedly mounted on the piston rod of the cylinder three (221), a cylinder four (222) vertically mounted on the sliding plate (2212), a conveying movable plate (223) fixedly mounted on the piston rod of the cylinder four (222), a cross bar one (224) slidably mounted on the conveying movable plate (223), a cross bar two (225) slidably mounted on one side of the cross bar one (224), the cross bar one (224) and the cross bar two (225) ) are respectively provided with a clamping rod one (226) and a clamping rod two (227), and the clamping rod one (226) and the clamping rod two (227) are cross-arranged. The conveying movable plate (223) is also symmetrically installed with a cylinder five (228) and a cylinder six (2210). An adjusting rod one (229) is fixedly installed on the piston rod of the cylinder five (228), and the adjusting rod one (229) is connected to the cross bar two (225). An adjusting rod two (2211) is fixedly installed on the piston rod of the cylinder six (2210), and the adjusting rod two (2211) is connected to the cross bar one (224).

7. The automatic coat inspection machine according to claim 1, characterized in that: The detection platform (21) is also equipped with a picking mechanism (23), and the picking mechanism (23) includes a picking frame (231) fixed on the detection platform (21), a slide rail (232) is horizontally installed on the picking frame (231), a picking horizontal cylinder (233) is fixedly installed on the slide rail (232), a picking moving plate (234) is fixedly installed on the piston rod of the picking horizontal cylinder (233), a picking lifting cylinder (235) is fixedly installed on the picking moving plate (234), and a mechanical clamp (236) is fixedly installed on the piston rod on the picking lifting cylinder (235).

8. The automatic coat inspection machine according to claim 1, characterized in that: A loading mechanism (1) is arranged on one side of the detection box (2), and the loading mechanism (1) comprises a storage box (11), a conveyor belt (12) is arranged on the storage box (11), a blocking plate (13) is rotatably connected to the conveyor belt (12), a stepped fixed plate (16) is arranged on the storage box (11), a pushing cylinder (17) is arranged in the storage box (11), a stepped loading plate (14) is arranged on the piston rod of the pushing cylinder (17), and the loading plate (14) is adapted to the stepped fixed plate (16), and an inclined slideway (15) is also arranged in the storage box (11).

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