Conveying device with compact structure and material receiving and discharging machine

Abstract

The utility model relates to the technical field of material receiving and discharging equipment, in particular to a conveying device with a compact structure and a material receiving and discharging machine, which comprises a translation conveying module, a first lifting driving mechanism, a lifting seat, a conveying driving mechanism and a rotation driving mechanism, the translation conveying module comprises a supporting seat, a translation plate, a driven belt wheel, a conveying belt, a rack, a transmission gear meshed with the rack, a supporting rod arranged on the supporting seat and a supporting rolling piece rotationally connected to the supporting rod, the conveying driving mechanism is used for driving the conveying belt to rotate, and the rotation driving mechanism is used for driving the transmission gear to rotate; the translation plate is provided with a through hole and a translation groove, the supporting rod penetrates through the through hole, and the supporting rolling piece abuts against the inner wall of the translation groove in a rolling mode. Translation of the translation plate and rotation of the conveying belt are flexibly integrated together, the structural design is ingenious and compact, various combined conveying modes can be formed, the application range is wide, the translation conveying module is in a cantilever state, and the compact layout of the conveying device and an external structure is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of material receiving and unrecording equipment, in particular to a conveying device and a material receiving and unrecording machine with a compact structure. Background Art

[0002] When a material receiving and unloading machine receives or discharges materials, a conveying device or a robot is generally required to transport the materials to the loading frame; when a conveying device is used to receive and unload materials, the mechanisms with corresponding action functions are generally stacked and assembled together according to the actions involved in receiving and unloading materials. For example: In the existing patents, the Chinese patent document with application number 201820753685.0 discloses an intelligent flexible manufacturing conveying platform lifting and translation belt seat, including a guide rail, a synchronous belt, a synchronous wheel, an upper fixed plate and a motor, the guide rail is connected to a motor fixing block, the motor is fixed on the motor fixing block, the motor is connected to a driving wheel, the driving wheel is connected to the synchronous wheel through the synchronous belt, a bearing is provided in the middle of the synchronous wheel, a nut is provided on the bearing, the upper fixed base plate is provided at the bottom of the guide rail, a cylinder is installed under the upper fixed base plate, the bottom of the cylinder is connected to the bottom fixed base plate, and a guide shaft and a linear bearing are provided between the upper fixed base plate and the bottom fixed base plate; this patent document can realize lifting and rotation of the synchronous belt to meet the lifting and conveying of materials. Based on this patent document, if translation functionality is also desired, a translation drive mechanism is typically added directly beneath the bottom fixed base plate to drive the bottom fixed base plate to translate. This simple stacking of functional modules results in an inefficient structure, requiring a large amount of space and hindering the compact layout of the devices within the device. This drawback is significant, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a conveying device and a material collecting and unloading machine with a compact structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0006] Furthermore, there are two translation slots, which are located on both sides of the through hole. There are multiple support rods, which are arranged in a straight line. Each support rod is rotatably connected to two support rollers, and the two support rollers on each support rod are respectively arranged in the two translation slots.

[0007] Furthermore, there are two racks, the conveyor belt is located between the two racks, and two circles of tooth groups are provided on the circumferential side of the transmission gear. The two circles of tooth groups are respectively engaged with the two racks. An avoidance space is formed between the two circles of tooth groups, and the conveyor belt is located in the avoidance space.

[0008] Furthermore, the rotation drive mechanism includes a first rotating shaft rotatably connected to the lifting base, a driving gear sleeved on the first rotating shaft, and a first rotating driver installed on the lifting base and used to drive the first rotating shaft to rotate, and the driving gear is engaged with the transmission gear; the conveying drive mechanism includes a second rotating shaft rotatably connected to the lifting base, a transmission wheel sleeved on the first rotating shaft, and a second rotating driver installed on the lifting base and used to drive the second rotating shaft to rotate, and the conveyor belt is transmission-wound around the transmission wheel.

[0009] Furthermore, the number of translational conveying modules, the number of driving gears and the number of transmission wheels are all multiple, and multiple translational conveying modules, multiple driving gears and multiple transmission wheels are respectively arranged in one-to-one correspondence, and multiple translational conveying modules are arranged in parallel. The conveying drive mechanism is used to drive the conveyor belts of all translational conveying modules to rotate, and the rotation drive mechanism is used to drive the transmission gears of all translational conveying modules to rotate.

[0010] Furthermore, each translation conveying module has two transmission gears, and the two transmission gears are located on both sides of the driving gear.

[0011] Furthermore, a guide belt support plate is installed on the top surface of the translation plate, and a limiting groove is recessed on the top surface of the guide belt support plate, and the conveyor belt is movably arranged in the limiting groove.

[0012] Furthermore, the support seat is rotatably connected to a tensioning guide pulley, and the tensioning guide pulley is used to resist the conveyor belt.

[0013] Furthermore, there are two tensioning guide pulleys, which are respectively located on both sides above the transmission wheel.

[0014] The present utility model also provides a material collecting and unloading machine, including a second lifting drive mechanism, a loading frame and the above-mentioned conveying device. The loading frame is installed at the lifting end of the second lifting drive mechanism, and the conveying device is located on one side of the loading frame. The loading frame is provided with a multi-layer loading structure from top to bottom. The loading structure includes a side slot and a loading trough connected to the top port of the side slot. The side slot is used for the translation plate to be inserted into the loading frame.

[0015] The beneficial effects of the present invention are as follows: in actual application, the first lifting drive mechanism drives the lifting seat and the translation conveying module to rise and fall, and the lifting translation conveying module can not only place the material it carries on the external structure, but also lift the material of the external structure; the rotating drive mechanism drives the transmission gear to rotate, and the rotating transmission gear meshes with the rack to drive the rack, the translation plate and the two follower pulleys to translate. During the translation of the translation plate, the transmission gear not only meshes with the rack for transmission, but also plays a supporting role for the translation plate, and the supporting rolling element rolls against the inner wall of the translation groove, and the supporting rolling element can not only support the translation plate, but also play a guiding role for the movement of the translation plate, thereby improving the stability of the movement of the translation plate, and because the two follower pulleys move synchronously with the translation plate, under the cooperation of the follower pulley and the conveyor belt, as the translation plate moves, the conveyor belt will move accordingly, and the moving conveyor belt will drive the material to follow the translation plate to move; the conveying drive mechanism drives the conveyor belt to rotate, and the rotating conveyor belt will transport the material. When in use, the translation conveying module is in a cantilevered state, which is conducive to the compact layout of the conveying device and the external structure (such as: roller conveying mechanism, etc.), greatly reducing the size of the equipment, and can not only complete the lifting and lowering of the translation conveying module, the translation of the translation plate or the rotation of the conveyor belt independently, but also by combining at least two of the lifting and lowering of the translation conveying module, the translation of the translation plate and the rotation of the conveyor belt to form a variety of combined conveying modes, thereby meeting the needs of material transportation in different scenarios. The utility model integrates the translation of the translation plate and the rotation of the conveyor belt flexibly, and the structural design is ingenious and compact, and can form a variety of combined conveying modes, thereby meeting the needs of material transportation in different scenarios. It has strong practicality, good versatility, and a wide range of uses. The translation conveying module is in a cantilevered state, which is conducive to the compact layout of the conveying device and the external structure (such as: roller conveying mechanism, etc.), greatly reducing the size of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the unwinding and rewinding machine of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the translation conveying module of the present invention.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the translation conveying module of the present invention from another perspective.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the translation plate of the present utility model.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the transmission gear of the present utility model.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the first lifting drive mechanism, the conveying drive mechanism and the rotation drive mechanism of the present utility model.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the support seat, translation plate, conveyor belt, support rod and support rolling element of the utility model.

[0023] Description of reference numerals:

[0024] 1. Translation conveying module; 2. First lifting drive mechanism; 3. Lifting seat; 4. Conveying drive mechanism; 5. Rotation drive mechanism; 6. Support seat; 7. Translation plate; 8. Slave pulley; 9. Conveyor belt; 10. Rack; 11. Transmission gear; 12. Support rod; 13. Support rolling element; 14. Through hole; 15. Translation slot; 16. Tooth group; 17. First rotating shaft; 18. Driving gear; 19. First rotation driver; 20. Second rotating shaft; 21. Transmission wheel; 22. Second rotation driver; 23. Guide belt support plate; 24. Limiting slot; 25. Tensioning guide pulley; 26. Second lifting drive mechanism; 27. Loading frame; 28. Side slot; 29. ​​Loading trough; 30. Material; 31. Avoidance space. DETAILED DESCRIPTION

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0026] like Figures 1 to 7As shown, the utility model provides a compact conveying device, which includes a translation conveying module 1, a first lifting drive mechanism 2, a lifting seat 3 installed at the lifting end of the first lifting drive mechanism 2, and a conveying drive mechanism 4 and a rotation drive mechanism 5 respectively arranged on the lifting seat 3. The translation conveying module 1 includes a support seat 6 installed on the lifting seat 3, a cantilevered translation plate 7 arranged on the support seat 6, two slave pulleys 8 respectively rotatably connected to the two ends of the translation plate 7, a conveyor belt 9 transmission-mounted on the outside of the two slave pulleys 8, a rack 10 arranged on the bottom surface of the translation plate 7, and a conveyor belt 9 rotationally connected to the two ends of the translation plate 7. The support seat 6 is provided with a transmission gear 11 meshing with the rack 10, a support rod 12 is installed on the support seat 6, and a support roller 13 is rotatably connected to the support rod 12. The translation plate 7 is located in the annular space of the conveyor belt 9. The conveying drive mechanism 4 is used to drive the conveyor belt 9 to rotate, and the rotation drive mechanism 5 is used to drive the transmission gear 11 to rotate. The translation plate 7 is provided with a through hole 14 and a translation groove 15 connected to the through hole 14. The support rod 12 passes through the through hole 14, and the support roller 13 rolls against the inner wall of the translation groove 15. The extension direction of the through hole 14 and the translation groove 15 is parallel to the translation direction of the translation plate 7.

[0027] In actual application, the first lifting drive mechanism 2 drives the lifting seat 3 to lift the translation conveying module 1. The lifting translation conveying module 1 can place the material 30 it carries on the external structure (such as a roller conveying mechanism, etc.), and can also lift the material 30 of the external structure; the rotation drive mechanism 5 drives the transmission gear 11 to rotate, and the rotating transmission gear 11 engages with the rack 10 to drive the rack 10 to translate the translation plate 7 and the two slave pulleys 8. In the process of translation of the translation plate 7, the transmission gear 11 not only engages with the rack 10 for transmission, but also supports the translation plate 7. The supporting roller 13 rolls against the inner wall of the translation groove 15, and the supporting roller 13 can not only support the translation plate 7, but also guide the movement of the translation plate 7, thereby improving the stability of the movement of the translation plate 7. Moreover, since the two slave pulleys 8 move synchronously with the translation plate 7, the conveyor belt 9 will move accordingly with the movement of the translation plate 7 under the cooperation of the slave pulleys 8 and the conveyor belt 9, and the moving conveyor belt 9 will drive the material 30 to move with the translation plate 7; the conveying drive mechanism 4 drives the conveyor belt 9 to rotate, and the rotating conveyor belt 9 will transport the material 30. When in use, the translation conveying module 1 is in a cantilever state, which is conducive to the compact layout of the conveying device and the external structure (such as: roller conveying mechanism, etc.), greatly reducing the volume of the equipment, and can not only complete the lifting and lowering of the translation conveying module 1, the translation of the translation plate 7 or the rotation of the conveyor belt 9 independently, but also form a variety of combined conveying methods by combining at least two of the lifting and lowering of the translation conveying module 1, the translation of the translation plate 7 and the rotation of the conveyor belt 9, so as to meet the needs of conveying materials 30 in different scenarios.

[0028] The utility model integrates the translation of the translation plate 7 and the rotation flexibility of the conveyor belt 9. The structural design is ingenious and compact, and can form a variety of combined conveying modes, so as to meet the needs of conveying materials 30 in different scenarios. It has strong practicality, good versatility, and a wide range of uses. The translation conveying module 1 is in a cantilever state, which is conducive to the compact layout of the conveying device and the external structure (such as: roller conveying mechanism, etc.), greatly reducing the volume of the equipment.

[0029] Specifically, the supporting rolling element 13 may be a roller or a bearing.

[0030] In this embodiment, there are two translation slots 15, located on either side of the through hole 14. There are multiple support rods 12, arranged in a straight line. Each support rod 12 is rotatably connected to two support rollers 13, and the two support rollers 13 on each support rod 12 are respectively disposed in two translation slots 15. This structural design increases the number of support rollers 13, increases the force supporting the translation plate 7, and further improves the translation stability of the translation plate 7.

[0031] In this embodiment, there are two racks 10, and the conveyor belt 9 is located between the two racks 10. Two circles of tooth groups 16 are provided on the circumferential side of the transmission gear 11. The two circles of tooth groups 16 are respectively engaged with the two racks 10 for transmission. An avoidance space 31 is formed between the two circles of tooth groups 16, and the conveyor belt 9 is located in the avoidance space 31.

[0032] In this embodiment, the rotation drive mechanism 5 includes a first rotating shaft 17 rotatably connected to the lift base 3, a driving gear 18 mounted on the first rotating shaft 17, and a first rotating driver 19 mounted on the lift base 3 and configured to rotate the first rotating shaft 17. The driving gear 18 meshes with the transmission gear 11. The conveying drive mechanism 4 includes a second rotating shaft 20 rotatably connected to the lift base 3, a transmission wheel 21 mounted on the first rotating shaft 17, and a second rotating driver 22 mounted on the lift base 3 and configured to rotate the second rotating shaft 20. The conveyor belt 9 is disposed around the transmission wheel 21 for transmission.

[0033] In actual use, the first rotary driver 19 drives the first rotating shaft 17 to rotate, and the rotating first rotating shaft 17 drives the driving gear 18 to rotate. The rotating driving gear 18 meshes with the transmission gear 11 to drive the transmission gear 11 to rotate. The rotating transmission gear 11 meshes with the rack 10 to drive the rack 10 to move. The moving rack 10 drives the translation plate 7 to move. The second rotary driver 22 drives the second rotating shaft 20 to rotate. The rotating second rotating shaft 20 drives the transmission wheel 21 to rotate. The rotating transmission wheel 21 drives the conveyor belt 9 to rotate. During the movement of the translation plate 7, the conveyor belt 9, the transmission wheel 21, and the two slave pulleys 8 roughly form a fixed pulley structure. Similar to the principle of a fixed pulley, under the action of the two slave pulleys 8, the conveyor belt 9 will move accordingly.

[0034] Specifically, the first rotation driver 19 and the second rotation driver 22 have the same structure, and are both composed of a motor, a synchronous belt, and a synchronous pulley.

[0035] In this embodiment, the number of translation conveying modules 1, the number of driving gears 18, and the number of transmission wheels 21 are all multiple. The multiple translation conveying modules 1, the multiple driving gears 18, and the multiple transmission wheels 21 are respectively arranged in a one-to-one correspondence. The multiple translation conveying modules 1 are arranged in parallel. The conveying drive mechanism 4 is used to drive the conveyor belts 9 of all translation conveying modules 1 to rotate, and the rotation drive mechanism 5 is used to drive the transmission gears 11 of all translation conveying modules 1 to rotate. In actual application, depending on the type and size of the material 30, one material 30 can be conveyed by one translation conveying module 1 or by at least two translation conveying modules 1. The use is diverse, flexible and convenient. One conveying drive mechanism 4 can drive the conveyor belts 9 of all translation conveying modules 1 to rotate synchronously, and one rotation drive mechanism 5 can drive the translation plates 7 of all translation conveying modules 1 to move. This greatly reduces the number of drive sources used, has a compact structure, and reduces production and use costs.

[0036] In this embodiment, each translation conveyor module 1 has two transmission gears 11, which are located on either side of the driving gear 18. In actual application, one driving gear 18 drives the two transmission gears 11 to rotate synchronously, and the two transmission gears 11 simultaneously mesh with the rack 10 for transmission. This not only improves the stability of the meshing transmission, but also increases the support force of the transmission gears 11 on the translation plate 7.

[0037] In this embodiment, a belt guide support plate 23 is mounted on the top surface of the translation plate 7. A retaining groove 24 is recessed into the top surface of the belt guide support plate 23, and the conveyor belt 9 is positioned within the retaining groove 24. Specifically, multiple belt guide support plates 23 are provided, spaced apart and arranged along the length of the translation plate 7. In practice, the retaining groove 24 serves to limit the position of the conveyor belt 9, while the belt guide support plates 23 provide support for the conveyor belt 9. This improves the strength of the conveyor belt 9 when carrying the material 30 and reduces the risk of tensile deformation of the conveyor belt 9.

[0038] Specifically, the limiting groove 24 is polished to reduce the friction resistance and wear of the conveyor belt 9.

[0039] In this embodiment, the support base 6 is rotatably connected to a tensioning guide pulley 25, which is used to contact the conveyor belt 9. There are two tensioning guide pulleys 25, one located above and the other on either side of the transmission wheel 21. The tensioning guide pulleys 25 position and guide the conveyor belt 9 and apply a certain tension to the conveyor belt 9, thereby improving the operating stability of the conveyor belt 9.

[0040] The present utility model also provides a material collecting and unloading machine, including a second lifting drive mechanism 26, a loading frame 27 and the above-mentioned conveying device. The loading frame 27 is installed at the lifting end of the second lifting drive mechanism 26, and the conveying device is located on one side of the loading frame 27. The loading frame 27 is provided with a multi-layer loading structure from top to bottom. The loading structure includes a side slot 28 and a loading trough 29 connected to the top port of the side slot 28. The side slot 28 is used for the translation plate 7 of the translation conveying module 1 to be inserted into the loading frame 27. One side slot 28 corresponds to the translation plate 7 of one translation conveying module 1.

[0041] The material receiving and unloading machine can realize receiving and unloading of the material 30. This embodiment is described by taking receiving the material 30 as an example. After the material 30 is transported to the loading trough 29, the first lifting drive mechanism 2 drives the translation conveying module 1 to descend, so that the material 30 is placed in the loading trough 29 to realize the collection of the material 30. Finally, the rotation drive mechanism 5 drives the translation plate 7 to move out of the loading frame 27 from the side slot 28 and reset it to facilitate the collection of the next material 30. After the translation plate 7 moves out of the loading frame 27, the second lifting drive mechanism 26 drives the loading frame 27 to descend or rise one layer to the height of the loading structure, so that the loading frame 27 is ready to receive the next material 30. When the loading frame 27 collects materials from top to bottom, the second lifting drive mechanism 26 drives the loading frame 27 to rise layer by layer from bottom to top; when the loading frame 27 collects materials from bottom to top, the second lifting drive mechanism 26 drives the loading frame 27 to descend layer by layer from top to bottom.

[0042] Preferably, the material 30 may be a board such as a circuit board.

[0043] Specifically, the first lifting drive mechanism 2 and the second lifting drive mechanism 26 can both be driven by a mechanism including a motor, a lead screw, a guide rail and a slider.

[0044] All technical features in this embodiment can be freely combined according to actual needs.

[0045] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A compact conveying device, characterized in that: The invention comprises a translation conveying module (1), a first lifting drive mechanism (2), a lifting seat (3) installed at the lifting end of the first lifting drive mechanism (2), and a conveying drive mechanism (4) and a rotation drive mechanism (5) respectively arranged on the lifting seat (3); the translation conveying module (1) comprises a support seat (6) installed on the lifting seat (3), a translation plate (7) cantilevered and translationally arranged on the support seat (6), two slave pulleys (8) respectively rotatably connected to the two ends of the translation plate (7), a conveying belt (9) transmission-mounted outside the two slave pulleys (8), a rack (10) arranged on the bottom surface of the translation plate (7), a transmission rack (10) rotatably connected to the support seat (6) and connected to the transmission rack (10). A transmission gear (11) meshed with a rack (10), a support rod (12) mounted on a support seat (6), and a support rolling element (13) rotatably connected to the support rod (12); a conveying drive mechanism (4) for driving a conveyor belt (9) to rotate; a rotation drive mechanism (5) for driving the transmission gear (11) to rotate; a translation plate (7) provided with a through hole (14) and a translation groove (15) connected to the through hole (14); the support rod (12) passes through the through hole (14); the support rolling element (13) rolls against the inner wall of the translation groove (15); and the extending direction of the through hole (14) and the translation groove (15) is parallel to the translation direction of the translation plate (7).

2. A compact conveying device according to claim 1, characterized in that: There are two translation slots (15), which are located on both sides of the through hole (14). There are multiple support rods (12), which are arranged in a straight line. Each support rod (12) is rotatably connected to two support rolling elements (13), and the two support rolling elements (13) on each support rod (12) are respectively arranged in the two translation slots (15).

3. A compact conveying device according to claim 1, characterized in that: There are two racks (10), the conveyor belt (9) is located between the two racks (10), two circles of tooth groups (16) are provided on the circumferential side of the transmission gear (11), the two circles of tooth groups (16) are respectively engaged with the two racks (10), an avoidance space (31) is formed between the two circles of tooth groups (16), and the conveyor belt (9) is located in the avoidance space (31).

4. A compact conveying device according to claim 1, characterized in that: The rotation drive mechanism (5) comprises a first rotating shaft (17) rotatably connected to the lifting seat (3), a driving gear (18) fitted on the first rotating shaft (17), and a first rotating driver (19) installed on the lifting seat (3) and used for driving the first rotating shaft (17) to rotate, wherein the driving gear (18) is engaged with the transmission gear (11); the conveying drive mechanism (4) comprises a second rotating shaft (20) rotatably connected to the lifting seat (3), a transmission wheel (21) fitted on the first rotating shaft (17), and a second rotating driver (22) installed on the lifting seat (3) and used for driving the second rotating shaft (20) to rotate, wherein the conveying belt (9) is transmission-wound around the transmission wheel (21).

5. A compact conveying device according to claim 4, characterized in that: The number of translation conveying modules (1), the number of driving gears (18) and the number of transmission wheels (21) are all multiple, the multiple translation conveying modules (1), the multiple driving gears (18) and the multiple transmission wheels (21) are respectively arranged in a one-to-one correspondence, the multiple translation conveying modules (1) are arranged in parallel, the conveying drive mechanism (4) is used to drive the conveyor belts (9) of all the translation conveying modules (1) to rotate, and the rotation drive mechanism (5) is used to drive the transmission gears (11) of all the translation conveying modules (1) to rotate.

6. A compact conveying device according to claim 5, characterized in that: Each translation conveying module (1) has two transmission gears (11), and the two transmission gears (11) are located on both sides of the driving gear (18).

7. A compact conveying device according to claim 1, characterized in that: A guide belt support plate (23) is installed on the top surface of the translation plate (7), a limiting groove (24) is recessed on the top surface of the guide belt support plate (23), and the conveyor belt (9) is movably arranged in the limiting groove (24).

8. A compact conveying device according to claim 4, characterized in that: The support seat (6) is rotatably connected to a tensioning guide pulley (25), and the tensioning guide pulley (25) is used to resist the conveyor belt (9).

9. A compact conveying device according to claim 8, characterized in that: There are two tensioning guide pulleys (25), and the two tensioning guide pulleys (25) are respectively located on both sides above the transmission wheel (21).

10. A material unwinding machine, characterized in that: It includes a second lifting drive mechanism (26), a loading frame (27) and a conveying device as described in any one of claims 1 to 9, the loading frame (27) is installed at the lifting end of the second lifting drive mechanism (26), and the conveying device is located on one side of the loading frame (27), and the loading frame (27) is provided with a multi-layer loading structure from top to bottom, and the loading structure includes a side slot (28) and a loading trough (29) connected to the top port of the side slot (28), and the side slot (28) is used for the translation plate (7) to be inserted into the loading frame (27).

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