Automatic weighing and packaging equipment for driving shaft assembly

Abstract

The invention relates to the technical field of packaging equipment, and discloses automatic weighing and packaging equipment for a driving shaft assembly. The device comprises a stand, the stand is provided with a packaging barrel mechanism capable of automatically weighing and packaging the driving shaft assembly, the packaging barrel mechanism comprises a rotatable barrel body, the barrel body is provided with a feeding port and a discharging port which are used for the driving shaft assembly to enter and exit, two weighing scales are arranged in the barrel body, and the weighing scales are used for weighing the driving shaft assembly. The two weighing scales are fixedly arranged on the barrel, the same weighing table is fixedly arranged on the two weighing scales, a replaceable packaging bag roller wound with a packaging bag is rotationally arranged in the barrel, the packaging bag can be automatically unwound, and a heat sealing mechanism used for conducting heat sealing on the packaging bag roller is further arranged in the barrel. Automatic weighing and packaging work of the driving shaft assembly can be achieved, dependence on manpower can be reduced, automatic packaging can be achieved, and meanwhile the protective effect on the driving shaft assembly can be improved through sealed packaging.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment, and in particular to automatic weighing and packaging equipment for a drive shaft assembly. Background Art

[0002] The drive shaft assembly is an important component in the automobile transmission system, used to transmit power. After the drive shaft assembly is assembled, it will undergo a final test, and after the test, it will undergo a final length measurement, weighing, and packaging. After the drive shaft assembly is tested, the staff will place the drive shaft assembly on a length measuring instrument for length detection, and then place it on a weighing device for weighing. If the drive shaft assembly meets the requirements, it will be packaged directly on the weighing device.

[0003] At present, the packaging of drive shaft assemblies is mostly done manually by staff, that is, after weighing, two packaging bags are respectively put on the universal joints at both ends of the drive shaft assembly (the weighing equipment is generally a frame structure, the middle shaft of the drive shaft assembly is placed on the frame of the weighing equipment, and the universal joints at both ends are in a suspended state, which is convenient for putting on the packaging bags). This is a simple non-sealed packaging, but this packaging method is extremely dependent on manpower and cannot achieve automated assembly line packaging. In addition, the non-sealed packaging method has relatively weak protection for the drive shaft assembly and poor isolation. Therefore, it is necessary to propose an automatic weighing and packaging device for the drive shaft assembly. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic weighing and packaging device for a drive shaft assembly.

[0005] The present invention is implemented by the following technical scheme: a stand, on which is disposed a packaging drum mechanism capable of automatically weighing and packaging a drive shaft assembly, the packaging drum mechanism comprising a rotatable cylinder body, on which are respectively disposed a feed port and a discharge port for the drive shaft assembly to enter and exit, two weighing scales being disposed inside the cylinder body, on which the same weighing platform is fixedly disposed, a replaceable packaging bag roller wrapped with a packaging bag being rotatably disposed inside the cylinder body, the packaging bag being automatically unwound, a heat sealing mechanism for heat sealing the packaging bag roller being further disposed inside the cylinder body, the heat sealing mechanism comprising a first movable frame-type heat sealing head and a second frame-type heat sealing head which can cooperate with the first frame-type heat sealing head and can move in an arc.

[0006] As a further improvement of the above solution, a first motor for driving the cylinder to rotate is fixedly mounted on the stand, and the first motor is drivingly connected to the shaft of the cylinder.

[0007] As a further improvement of the above scheme, two conveying rollers for unwinding the packaging bags are rotatably installed in the cylinder, a second motor is fixedly installed at one end of the cylinder, one end of any one of the conveying rollers is fixedly connected to the output shaft of the second motor, and the other ends of the two conveying rollers are fixedly installed with mutually meshing circular gears, so that the two conveying rollers can unwind the packaging bags on the packaging bag rollers by rotating.

[0008] As a further improvement of the above-mentioned scheme, electric push rods are fixedly installed on the inner walls of both sides of the cylinder, and the same tool holder is fixedly installed on the output rods of the two electric push rods. A blade is fixedly installed on the tool holder, and four through holes are provided on the tool holder. Sliding rods are slidably provided in the four through holes, and one end of the four sliding rods is fixedly connected to the first frame-type heat sealing head. Springs are slidably sleeved on the four sliding rods, and the two ends of the four springs are respectively against the tool holder and the first frame-type heat sealing head. In this way, when the two electric push rods push the tool holder and the first frame-type heat sealing head close to the second frame-type heat sealing head, the packaging bag will be heat-sealed first and then the heat-sealed packaging bag will be cut by the blade.

[0009] As a further improvement of the above-mentioned scheme, arc-shaped slide grooves are provided on the inner walls on both sides of the cylinder, and a pair of sliding shafts are provided on both sides of the second frame-type heat sealing head. The two pairs of sliding shafts extend into the corresponding arc-shaped slide grooves respectively and are slidingly connected with the corresponding arc-shaped slide grooves, so that the second frame-type heat sealing head will not restrict the packaged drive shaft assembly, so that the packaged drive shaft assembly can be smoothly moved to the discharge port and discharged therefrom.

[0010] As a further improvement of the above solution, two arc-shaped baffles are arranged in the cylinder, so as to prevent the drive shaft assembly from axially offset in the cylinder.

[0011] As a further improvement of the above scheme, a material guide rack is arranged on the platform, and the material guide rack consists of two parts: a material guide trough and a base frame. One end of the material guide trough is close to the cylinder and corresponds to the feed port on the cylinder, so that the drive shaft assembly can easily enter the cylinder through the material guide rack.

[0012] As a further improvement of the above scheme, a fan is fixedly provided on the material guide rack, and an air expansion scoop fitted with the cylinder is fixedly provided on the air outlet of the fan, and a plurality of ventilation holes are provided on the cylinder, so that when the drive shaft assembly is transferred to the second frame-type heat sealing head, the fan can blow on the packaging bag through the ventilation holes, so that the packaging bag can better wrap the drive shaft assembly.

[0013] As a further improvement of the above solution, a movable sorting frame is arranged on the stand, and the sorting frame can control the position of the drive shaft assembly when it is discharged by moving left and right, thereby realizing the sorting of the drive shaft assembly.

[0014] As a further improvement of the above scheme, two slides are arranged on the platform, and connecting blocks and two springs are slidably sleeved on the slide rods of the two slides, and the two springs are located on both sides of the connecting blocks. The two connecting blocks are fixedly connected to the sorting frame, and convex rods are fixedly installed at both ends of the sorting frame. A first lever and a second lever are arranged at both ends of the cylinder, and the first lever corresponds to the discharge port, and the second lever corresponds to the feed port, so that the position of the sorting frame can be controlled by the first lever or the second lever when the cylinder rotates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: A packaging drum mechanism is formed by arranging a packaging bag roller inside a rotatable drum and a heat-sealing mechanism that can heat-seal the packaging bag roller, so that after the drive shaft assembly enters the drum, the drum can rotate to allow the packaging bag on the packaging bag roller to wrap the drive shaft assembly, and then the packaging bag is heat-sealed by the heat-sealing mechanism, thereby realizing automatic packaging of the drive shaft assembly. At the same time, a weighing scale and a weighing platform are arranged in the drum, so that the packaging drum mechanism can also weigh the drive shaft assembly before packaging it, thereby synchronously completing the verification and packaging of the drive shaft assembly; By arranging multiple vents on the cylinder, and arranging a fan and an air expansion bucket that can cooperate with the fan on the guide frame, when the drive shaft assembly rolls over the hanging packaging bag as the cylinder rotates, the packaging bag can wrap the drive shaft assembly more neatly under the action of wind force, so that the subsequent heat sealing work is more convenient; By arranging a knife holder elastically connected to the first frame-type heat-sealing head, and arranging a blade on the knife holder, when the electric push rod pushes the first frame-type heat-sealing head to heat-seal the packaging bag, the packaging bag can be heat-sealed first and then cut, so that the heat-sealed packaging bag can be separated from the packaging bag on the packaging bag roller more smoothly; By arranging a movable and resettable sorting frame on the frame, a protruding rod on the sorting frame, and arranging a first lever and a second lever that can move the protruding rod at the discharge port and the feed port of the cylinder, the cylinder is matched with a weighing mechanism composed of a weighing scale and a weighing platform, and then cooperates with the sorting frame, the drive shaft assembly can be sorted, so that unqualified drive shaft assemblies can be screened out in the weighing link. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the automatic weighing and packaging device for the drive shaft assembly of the present invention; Figure 2 A rear view showing the automatic weighing and packaging equipment for the drive shaft assembly of the present invention; Figure 3 It is a side view and a cross-sectional plan view showing the automatic weighing and packaging equipment of the drive shaft assembly of the present invention; Figure 4 This is a disassembled display diagram of the automatic weighing and packaging device for the drive shaft assembly of the present invention; Figure 5 This is a disassembled display diagram of the packaging tube mechanism; Figure 6 This is a front view of the packaging tube mechanism with the shell removed; Figure 7 This is a rear view of the packaging tube mechanism. Figure 8 It is a disassembly diagram showing the packaging tube mechanism and the packaging bag roller; Fig. 9 It is a display diagram of the heat sealing mechanism and part of the cylinder and a partial enlarged display diagram; Fig.10 This is a display diagram of the material guide rack and the air expansion hopper; Fig.11 This is a disassembled display diagram of the stand and the sorting rack; Fig.12 A step-by-step demonstration diagram of the automatic weighing and packaging equipment for the drive shaft assembly.

[0017] Description of main symbols: 1. Stand; 2. First motor; 3. Cylinder; 4. Feed inlet; 5. Discharge outlet; 6. Weighing scale; 7. Weighing platform; 8. Bag roller; 9. Second motor; 10. Conveyor roller; 11. Electric push rod; 12. Knife holder; 13. Blade; 14. First frame-type heat sealing head; 15. Second frame-type heat sealing head; 16. Sliding shaft; 17. Arc slide; 18. Arc baffle; 19. Material guide rack; 20. Fan; 21. Air expansion hopper; 22. Ventilation port; 23. Sorting rack; 24. Protruding rod; 25. First lever; 26. Second lever; 27. Rack slot; 28. Limiting strip. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Please combine Figures 1 to 12 , the automatic weighing and packaging equipment of the drive shaft assembly comprises: a stand 1, on which two leaks and two guide plates are arranged, and on which a packaging cylinder mechanism capable of automatically weighing and packaging the drive shaft assembly is arranged; The packaging cylinder mechanism includes a rotatable cylinder 3, which is composed of a cylinder body and end covers at both ends. Two support frames are arranged on the stand 1. The shafts at both ends of the cylinder 3 rotate with the two support frames. Two arc-shaped baffles 18 are arranged in the cylinder 3 to prevent the drive shaft assembly from axially offset in the cylinder 3. A first motor 2 for driving the cylinder 3 to rotate is fixedly installed on the stand 1. Synchronous wheels are arranged on the first motor 2 and the shafts of the cylinder 3. The same synchronous belt is sleeved on the two synchronous wheels. The first motor 2 is connected to the shaft of the cylinder 3 in transmission. A feed port 4 and a discharge port 5 for driving the shaft assembly to enter and exit are respectively arranged on the cylinder 3. The feed port 4 is at the nine o'clock position on the cylinder 3, and the discharge port 5 is arranged at the two o'clock position on the cylinder 3. Two weighing scales 6 are arranged in the cylinder 3. The end caps at both ends of the cylinder 3 are provided with rectangular openings at the six o'clock position, two weighing scales 6 are respectively arranged in the two rectangular openings, and the same weighing platform 7 is fixedly arranged on the two weighing scales 6. A long strip opening is arranged at the bottom of the cylinder 3, and the weighing platform 7 fills the long strip opening. A replaceable packaging bag roller 8 wrapped with a packaging bag is rotatably arranged in the cylinder 3, and two conveying rollers 10 for unwinding the packaging bag are rotatably installed in the cylinder 3. A second motor 9 is fixedly installed at one end of the cylinder 3, and one end of any one of the conveying rollers 10 is fixedly connected to the output shaft of the second motor 9. The other ends of the two conveying rollers 10 are fixedly installed with mutually meshing circular gears, so that the two conveying rollers 10 can unwind the packaging bag on the packaging bag roller 8 by rotating, and a heat sealing mechanism for heat sealing the packaging bag roller 8 is also arranged in the cylinder 3; The inner walls (end covers) on both sides of the cylinder 3 are provided with frame grooves 27, and the shafts (with bearings) at both ends of the packaging bag roller 8 extend into the two frame grooves 27 respectively. In addition, the two frame grooves 27 are also provided with limiting inserts 28 for limiting the packaging bag roller 8. The limiting inserts 28 are fixedly connected to the cylinder 3 by bolts, so that the packaging bag roller 8 can be easily replaced. The heat sealing mechanism includes a movable first frame-type heat sealing head 14 and a second frame-type heat sealing head 15 which can cooperate with the first frame-type heat sealing head 14 and can move in an arc shape. The inner walls on both sides of the cylinder 3 are provided with arc-shaped slide grooves 17, and a pair of sliding shafts 16 are provided on both sides of the second frame-type heat sealing head 15. The two pairs of sliding shafts 16 extend into the corresponding arc-shaped slide grooves 17 respectively and are slidably connected with the corresponding arc-shaped slide grooves 17, so that the second frame-type heat sealing head 15 will not restrict the packaged drive shaft assembly, so that the packaged drive shaft assembly can be smoothly moved to the discharge port 5 and discharged therefrom. In addition, two parallel slide grooves are also provided on the inner walls on both sides of the cylinder 3, and a pair of sliding shafts 16 extending into the parallel slide grooves are provided at both ends of the first frame-type heat sealing head 14. , so as to ensure that the first frame-type heat-sealing head 14 can move stably, electric push rods 11 are fixedly installed on the inner walls of both sides of the cylinder 3, and the same tool holder 12 is fixedly installed on the output rods of the two electric push rods 11, and a blade 13 is fixedly installed on the tool holder 12. Four through holes are arranged on the tool holder 12, and sliding rods are slidably arranged in the four through holes. One end of the four sliding rods is fixedly connected to the first frame-type heat-sealing head 14, and springs are slidably sleeved on the four sliding rods. The two ends of the four springs are respectively against the tool holder 12 and the first frame-type heat-sealing head 14, so that when the two electric push rods 11 push the tool holder 12 and the first frame-type heat-sealing head 14 close to the second frame-type heat-sealing head 15, the packaging bag will be heat-sealed first and then the heat-sealed packaging bag will be cut by the blade 13.

[0020] Through the above technical solution, after the drive shaft assembly enters the cylinder 3, the cylinder 3 can rotate to allow the packaging bag on the packaging bag roller 8 to wrap the drive shaft assembly, and then the packaging bag is heat-sealed by the heat sealing mechanism, thereby realizing automatic packaging of the drive shaft assembly. At the same time, by arranging a weighing scale 6 and a weighing platform 7 in the cylinder 3, the packaging cylinder mechanism can also weigh the drive shaft assembly before packaging it, thereby synchronously completing the verification and packaging of the drive shaft assembly.

[0021] A material guide rack 19 is arranged on the stand 1, and the material guide rack 19 consists of two parts: a material guide trough and a base frame. One end of the material guide trough is close to the cylinder 3 and corresponds to the feed port 4 on the cylinder 3, so that the drive shaft assembly can easily enter the cylinder 3 through the material guide rack 19, and a fan 20 is fixedly arranged on the material guide rack 19, and an air expansion scoop 21 that fits the cylinder 3 is fixedly arranged on the air outlet of the fan 20, and a plurality of vents 22 are arranged on the cylinder 3, so that when the drive shaft assembly is transferred to the second frame-type heat sealing head 15, the fan 20 can blow on the packaging bag through the vents 22, so that the packaging bag can better wrap the drive shaft assembly.

[0022] Through the above technical solution, when the drive shaft assembly rolls over the hanging packaging bag as the cylinder 3 rotates, the packaging bag can wrap the drive shaft assembly more neatly under the action of wind force, thereby making subsequent heat sealing work more convenient.

[0023] A movable sorting frame 23 is arranged on the stand 1. The sorting frame 23 can control the position of the driving shaft assembly when it is discharged by moving left and right, so as to realize the sorting of the driving shaft assembly. Two slides are arranged on the stand 1. The slide rods of the two slides are slidably sleeved with connecting blocks and two springs. The two springs are located on both sides of the connecting blocks. The two connecting blocks are fixedly connected to the sorting frame 23. Both ends of the sorting frame 23 are fixedly installed with convex rods 24. Both ends of the cylinder 3 are provided with a first lever 25 and a second lever 26. The first lever 25 corresponds to the discharge port 5, and the second lever 26 corresponds to the feed port 4. In this way, the position of the sorting frame 23 can be controlled by the first lever 25 or the second lever 26 when the cylinder 3 rotates.

[0024] Through the above technical solution, the cylinder 3 is matched with a weighing mechanism consisting of a weighing scale 6 and a weighing platform 7, and then matched with the sorting frame 23, so as to realize the sorting of the drive shaft assembly, thereby screening out unqualified drive shaft assemblies in the weighing link.

[0025] The implementation principle of an automatic weighing and packaging device for a drive shaft assembly in the embodiment of the present application is as follows: This equipment is recommended to be installed at the end of the conveying equipment to realize automated assembly line packaging. It can also be used independently. During use, after the drive shaft assembly falls into the guide groove on the guide frame 19, it will enter the cylinder 3 along the feed port 4 (before that, the packaging bag on the packaging bag roller 8 is unrolled to a suitable length under the conveyance of two conveyor rollers 10). At this time, the drive shaft assembly is above the weighing platform 7 to achieve weighing. When the weight of the drive shaft assembly is qualified, the first motor 2 drives the cylinder 3 to rotate 90 degrees clockwise, so that the drive shaft assembly rolls over the hanging packaging bag and rolls to the second frame-type heat sealing head 15. At this time, the multiple vents 22 are transferred to the expansion hopper 21 and correspond to it; Subsequently, in order to allow the packaging bag to be turned over the drive shaft assembly and wrapped, the fan 20 is started to blow the packaging bag so that it is turned over and wrapped around the drive shaft assembly. At this time, the two electric push rods 11 are started, and the two electric push rods 11 drive the first frame-type heat-sealing head 14 to move through the knife holder 12, so that the first frame-type heat-sealing head 14 and the second frame-type heat-sealing head 15 perform heat-seal on three sides of the packaging bag. Then, the knife holder 12 compresses the spring to drive the blade 13 to continue to move and cut the packaging bag from the heat-sealed position, thereby completing the packaging work of the drive shaft assembly. Subsequently, the cylinder 3 continues to rotate clockwise, so that the discharge port 5 is transferred to the drive shaft assembly. At the same time, the two first levers 25 at the discharge port 5 will synchronously move the protruding rods 24 on the sorting frame 23, so that the sorting frame 23 moves to the side of the guide frame 19, so that the packaged drive shaft assembly can be discharged through the discharge port 5 and can roll along the sorting frame 23 to the side away from the guide frame 19 (if the weight of the drive shaft assembly is unqualified, the cylinder 3 will rotate counterclockwise, and the two second levers 26 at the feed port 4 will move the sorting frame 23 to the other side, so that the unqualified drive shaft assembly is discharged from the feed port 4 and rolls to the side close to the guide frame 19).

[0026] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A drive shaft assembly automatic weighing and packaging device, characterized in that: include: A stand (1), wherein the stand (1) is provided with a packaging barrel mechanism capable of automatically weighing and packaging the drive shaft assembly; The packaging drum mechanism comprises a rotatable drum (3), the drum (3) being provided with a feed port (4) and a discharge port (5) for driving the shaft assembly to enter and exit, two weighing scales (6) being provided in the drum (3), the two weighing scales (6) being fixedly provided with a same weighing platform (7), a replaceable packaging bag roller (8) wound with a packaging bag being rotatably provided in the drum (3), the packaging bag being able to be unwound automatically, and a heat sealing mechanism for heat-sealing the packaging bag roller (8); The heat sealing mechanism comprises a first frame-type heat sealing head (14) which can be moved, and a second frame-type heat sealing head (15) which can cooperate with the first frame-type heat sealing head (14) and can move in an arc.

2. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 1, characterized in that: A first motor (2) for driving the cylinder (3) to rotate is fixedly mounted on the frame (1), and the first motor (2) is drivingly connected to a shaft of the cylinder (3).

3. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 1, characterized in that: Two conveying rollers (10) for unwinding packaging bags are rotatably mounted in the cylinder (3); a second motor (9) is fixedly mounted on one end of the cylinder (3); one end of any one of the conveying rollers (10) is fixedly connected to an output shaft of the second motor (9); and mutually meshing circular gears are fixedly mounted on the other ends of the two conveying rollers (10), so that the two conveying rollers (10) can unwind the packaging bags on the packaging bag roller (8) by rotating.

4. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 1, characterized in that: Electric push rods (11) are fixedly mounted on the inner walls of both sides of the cylinder (3); the same tool holder (12) is fixedly mounted on the output rods of the two electric push rods (11); a blade (13) is fixedly mounted on the tool holder (12); four through holes are arranged on the tool holder (12); sliding rods are slidably arranged in the four through holes; one end of the four sliding rods is fixedly connected to the first frame-type heat sealing head (14); springs are slidably sleeved on the four sliding rods; the two ends of the four springs are respectively abutted against the tool holder (12) and the first frame-type heat sealing head (14); In this way, when the two electric push rods (11) push the knife holder (12) and the first frame-type heat-sealing head (14) toward the second frame-type heat-sealing head (15), the packaging bag is first heat-sealed and then the heat-sealed packaging bag is cut by the blade (13).

5. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 1, characterized in that: The inner walls on both sides of the cylinder (3) are provided with arc-shaped slide grooves (17), and the two sides of the second frame-type heat sealing head (15) are provided with a pair of sliding shafts (16), and the two pairs of sliding shafts (16) respectively extend into the corresponding arc-shaped slide grooves (17) and are slidably connected with the corresponding arc-shaped slide grooves (17); In this way, the second frame-type heat sealing head (15) will not restrict the packaged drive shaft assembly, so that the packaged drive shaft assembly can be smoothly moved to the discharge port (5) and discharged therefrom.

6. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 1, characterized in that: Two arc-shaped baffles (18) are arranged in the cylinder (3), thereby preventing the drive shaft assembly from axially deviating in the cylinder (3).

7. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 1, characterized in that: A material guide frame (19) is arranged on the frame (1), and the material guide frame (19) is composed of two parts: a material guide trough and a base frame. One end of the material guide trough is close to the barrel (3) and corresponds to the feed port (4) on the barrel (3), so that the drive shaft assembly can easily enter the barrel (3) through the material guide frame (19).

8. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 7, characterized in that: A fan (20) is fixedly arranged on the material guide frame (19); an air diffuser (21) that fits the cylinder (3) is fixedly arranged on the air outlet of the fan (20); and a plurality of ventilation holes (22) are arranged on the cylinder (3); Thus, when the drive shaft assembly is transferred to the second frame-type heat sealing head (15), the fan (20) can blow the packaging bag through the vent (22), so that the packaging bag can better wrap the drive shaft assembly.

9. The automatic weighing and packaging equipment for drive shaft assembly according to claim 1, characterized in that: The stand (1) is provided with a movable sorting frame (23), and the sorting frame (23) can control the position of the drive shaft assembly when it is discharged by moving left and right, thereby realizing the sorting of the drive shaft assembly.

10. The automatic weighing and packaging equipment for the drive shaft assembly according to claim 9, characterized in that: Two slides are arranged on the platform (1), and a connecting block and two springs are slidably sleeved on the slide rods of the two slides, and the two springs are respectively located on both sides of the connecting block. The two connecting blocks are fixedly connected to the sorting frame (23), and the two ends of the sorting frame (23) are fixedly installed with convex rods (24). The two ends of the cylinder (3) are provided with a first lever (25) and a second lever (26), and the first lever (25) corresponds to the discharge port (5), and the second lever (26) corresponds to the feed port (4); In this way, when the cylinder (3) is rotated, the position of the sorting frame (23) can be controlled by the first shifting rod (25) or the second shifting rod (26).

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