Sorting equipment

Abstract

The present invention discloses a sorting device, which relates to the technical field of semiconductor production equipment, wherein the sorting device includes a machine base, a wafer changing device and a plurality of sorting devices, wherein the plurality of sorting devices are arranged at intervals on the machine base, the wafer changing device is movably arranged on the machine base, and the wafer changing device can move to the top of any sorting device, the wafer changing device includes a mounting frame, a driving mechanism and a clamping mechanism movably arranged on the mounting frame, the mounting frame has at least three accommodating positions, each accommodating position is used to store the material; when the wafer changing device is above any sorting device, the driving mechanism can drive the clamping mechanism to move, so as to transfer the material sorted by the corresponding sorting device to one of the accommodating positions, and then transfer the material to be sorted at another accommodating position to the sorting device. The technical solution provided by the present invention can solve the technical problem of low sorting efficiency of the existing sorting machine.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor production equipment, and in particular to a sorting equipment. Background Art

[0002] In the semiconductor production process, it is usually necessary to sort the chips after testing them to remove chips of unqualified quality. Currently, a sorting machine is mainly used to sort the chips, but the existing sorting machine has the technical problem of low sorting efficiency.

[0003] Therefore, it is necessary to provide a new sorting device to solve the above technical problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a sorting device, aiming to solve the technical problem of low sorting efficiency of existing sorting machines.

[0005] To achieve the above object, the present invention provides a sorting device, comprising:

[0006] Machine base;

[0007] A plurality of sorting devices, wherein the plurality of sorting devices are arranged at intervals on the machine base;

[0008] A sheet changing device, the sheet changing device is movably arranged on the machine base, and the sheet changing device can move to the top of any one of the sorting devices, the sheet changing device comprises a mounting frame, a driving mechanism and a clamping mechanism movably arranged on the mounting frame, the mounting frame has at least three accommodating positions, each of which is used to store sheets;

[0009] When the sheet changing device is above any one of the sorting devices, the driving mechanism can drive the clamping mechanism to move, so as to transfer the sheet sorted by the corresponding sorting device to one of the receiving positions, and then transfer the sheet to be sorted at another receiving position to the sorting device.

[0010] In one embodiment, the mounting frame is provided with a first slide rail, a first slider slidably provided on the first slide rail, a second slide rail provided on the first slider, and a second slider slidably provided on the second slide rail, and the clamping mechanism is provided on the second slider; the driving mechanism can drive the first slider to slide in a first direction, and can drive the second slider to slide in a second direction.

[0011] In one embodiment, the driving mechanism includes a first transmission rod, a second transmission rod, a first driven wheel, a second driven wheel, a first transmission belt, a second transmission belt, a first driving member capable of driving the first transmission rod to rotate, and a second driving member capable of driving the second transmission rod to rotate, the first transmission rod and the first driven wheel are arranged on the mounting frame at intervals along a first direction, and the first transmission rod and the first driven wheel are connected by a first transmission belt, the second transmission rod and the second driven wheel are arranged on the mounting frame at intervals along a second direction, and the second transmission rod and the second driven wheel are connected by a second transmission belt, the first slider is connected to the first transmission belt, and the second slider is connected to the second transmission belt.

[0012] In one embodiment, the clamping mechanism includes a driving unit disposed on the second sliding block and two clamping units disposed on the driving unit, and the driving unit can drive the two clamping units to move toward or away from each other.

[0013] In one embodiment, the second sliding block is provided with a connecting frame, the driving unit is provided with a connecting block, the connecting block is slidably provided on the connecting frame along the second direction, the connecting frame is provided with a fixing plate, and an elastic member is provided between the connecting block and the fixing plate.

[0014] In one embodiment, the mounting frame is provided with a plurality of guide mechanisms which are arranged one-to-one corresponding to the plurality of accommodating positions, each of the guide mechanisms comprises two guide blocks which are arranged on both sides of the accommodating positions relative to each other and two guide wheels which are rotatably connected to the two guide blocks one-to-one correspondingly, each of the guide blocks is slidably arranged on the mounting frame, and each of the guide wheels is provided with a guide groove.

[0015] In one embodiment, the guide block is formed with a connecting portion, and a reset member is provided between the connecting portion and the mounting frame.

[0016] In one embodiment, the film changing device also includes a clamping mechanism arranged on the mounting frame, and each of the accommodating positions is arranged below the clamping mechanism at intervals along the first direction. The clamping mechanism includes a mounting block arranged on the mounting frame, a plurality of driving cylinders arranged one-to-one corresponding to the plurality of accommodating positions, and two clamping blocks arranged on the driving cylinders, and the driving cylinders can drive the two clamping blocks to move in a direction closer to or away from each other.

[0017] In one embodiment, each of the sorting devices comprises a swing arm mechanism and two workbenches respectively arranged on both sides of the swing arm mechanism, and the sheet changing device can move to the top of any one of the workbenches;

[0018] When the sheet changing device is above one of the workbenches, the driving mechanism can drive the clamping mechanism to move, so as to transfer the sorted sheets at the corresponding workbench to one of the receiving positions, and transfer the sheets to be sorted at the other receiving position to the workbench.

[0019] In one embodiment, the sorting device further comprises a magazine, and the sheet changing device can move to above the magazine;

[0020] When the sheet changing device is located above the magazine, the driving mechanism can drive the clamping mechanism to move, so as to transfer the sorted sheets at the accommodating position to the magazine, and to transport the sheets to be sorted in the magazine to the accommodating position.

[0021] The technical solution of the present invention can reduce the frequency of the wafer changing device moving between the sorting device and the magazine and improve the sorting efficiency by setting a plurality of sorting devices and setting at least three accommodating positions on the mounting frame of the wafer changing device. In this embodiment, each sorting device is used to sort the chips mounted on the wafer. By setting a plurality of sorting devices on the machine base, it can sort a plurality of wafers at the same time to improve the sorting efficiency. Each accommodating position of the mounting frame is used to store the wafers, and setting a plurality of accommodating positions enables the wafer changing device to prepare the wafers to be sorted in advance, thereby reducing the frequency of the wafer changing device moving between the sorting device and the magazine and improving the sorting efficiency. Specifically, when replacing the material sheets, the material sheets to be sorted are first stored in the storage positions. It should be noted that when storing the material sheets to be sorted in the storage positions, it is necessary to ensure that at least one storage position has no material sheets stored, so as to facilitate the storage of the material sheets sorted by the sorting device. Then the sheet changing device moves to the top of any sorting device, and then the driving mechanism drives the clamping mechanism to move, so as to transfer the material sheets sorted by the sorting device to the storage position where no material sheets are stored, and transfer the material sheets to be sorted stored in another storage position to the sorting device; during the sheet changing process, the sheet changing device can prepare the material sheets to be sorted in advance without repeatedly moving between the sorting device and the material magazine, which can reduce the waste of work time and improve the sorting efficiency. In addition, in the sorting device, the number of accommodating positions is designed to be at least three, that is, the sheet changing device can prepare two or more sheets to be sorted in advance. When multiple sorting devices need to be changed, the sheet changing device can immediately move to the top of another sorting device after changing the sheet of one of the sorting devices, and change the sheet of the other sorting device, which can reduce the frequency of the sheet changing device moving between the sorting device and the magazine, and improve the sorting efficiency. The sorting device is applied to the technical fields of sorting machines and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the sorting device in the embodiment provided by the present invention;

[0024] Figure 2 A schematic diagram of the structure of a sheet changing device (part of the accommodating positions storing sheets) in an embodiment of the present invention;

[0025] Figure 3 A schematic structural diagram of a sheet changing device (no sheet is stored in each accommodating position) in an embodiment of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram from another perspective;

[0027] Figure 5 A schematic diagram of the connection between the second slider and the clamping mechanism in the embodiment provided by the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the clamping mechanism in the embodiment provided by the present invention.

[0029] Description of Figure Numbers:

[0030] 100, base; 200, film changing device; 210, mounting frame; 211, first slide rail; 212, first slider; 213, second slide rail; 214, second slider; 2141, connecting frame; 2142, fixing plate; 220, driving mechanism; 221, first transmission rod; 222, second transmission rod; 223, first driven wheel; 224, second driven wheel; 225, first transmission belt; 226, second transmission belt; 227, first driving mechanism Part; 228, second driving member; 230, clamping claw mechanism; 231, driving unit; 2311, connecting block; 2312, elastic member; 232, clamping unit; 240, guiding mechanism; 241, guiding block; 242, guiding wheel; 243, guiding groove; 250, clamping mechanism; 251, mounting block; 252, driving cylinder; 253, clamping block; 300, sorting device; 310, swing arm mechanism; 320, workbench; 400, material magazine.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] In the semiconductor production process, it is usually necessary to sort the chips by a sorting machine after testing them to remove chips of unqualified quality. Specifically, the chips are usually attached to sheets, and each sheet is attached with multiple chips; during sorting, the sheet changer of the sorting machine needs to transfer the sheets sorted by the sorting device to the magazine, and transfer the sheets to be sorted in the magazine to the sorting device for sorting. However, in the actual working process, researchers found that the existing sorting machines are usually only equipped with one sorting device, and the sheet changer of the sorting machine can only transfer one sheet at a time, which also causes the sheet changer to move repeatedly between the sorting device and the magazine during sorting, which affects the sorting efficiency.

[0037] The present invention provides a sorting device, aiming to solve the technical problem of low sorting efficiency of the existing sorting machine.

[0038] See also Figures 1 to 3In one embodiment of the present invention, the sorting equipment includes a machine base 100, a film changing device 200 and a plurality of sorting devices 300. The plurality of sorting devices 300 are arranged at intervals on the machine base 100. The film changing device 200 is movably arranged on the machine base 100, and the film changing device 200 can move to the top of any one of the sorting devices 300. The film changing device 200 includes a mounting frame 210, a driving mechanism 220 and a clamping mechanism 230 movably arranged on the mounting frame 210. The mounting frame 210 has at least three accommodating positions, each of which is used to store material sheets. When the film changing device 200 is above any one of the sorting devices 300, the driving mechanism 220 can drive the clamping mechanism 230 to move, so as to transfer the material sheets sorted by the corresponding sorting device 300 to one of the accommodating positions, and then transfer the material sheets to be sorted at another accommodating position to the sorting device 300.

[0039] The technical solution of the present invention can reduce the frequency of the wafer changing device 200 moving between the sorting device 300 and the magazine 400 and improve the sorting efficiency by setting a plurality of sorting devices 300 and setting at least three accommodating positions on the mounting frame 210 of the wafer changing device 200. In this embodiment, each sorting device 300 is used to sort the chips mounted on the wafer. By setting a plurality of sorting devices 300 on the base 100, it can sort a plurality of wafers at the same time to improve the sorting efficiency. Each accommodating position of the mounting frame 210 is used to store the wafers, and setting a plurality of accommodating positions enables the wafer changing device 200 to prepare the wafers to be sorted in advance, thereby reducing the frequency of the wafer changing device 200 moving between the sorting device 300 and the magazine 400 and improving the sorting efficiency. Specifically, when replacing the sheet, firstly, the sheet to be sorted is stored in the storage position. It should be noted that when storing the sheet to be sorted in the storage position, it is necessary to ensure that at least one storage position does not store the sheet, so as to store the sheet sorted by the sorting device 300. Then the sheet changing device 200 moves to the top of any sorting device 300, and then the driving mechanism 220 drives the clamping mechanism 230 to move, so as to transfer the sheet sorted by the sorting device 300 to the storage position where no sheet is stored, and transfer the sheet to be sorted stored in another storage position to the sorting device 300, so as to complete the sheet replacement work. In the sheet changing process, the sheet changing device 200 can prepare the sheet to be sorted in advance, reduce the frequency of the sheet changing device 200 moving between the sorting device 300 and the magazine 400, reduce the waste of working hours, and improve the sorting efficiency. In addition, in the sorting device, the number of accommodating positions is designed to be at least three, that is, the sheet changing device 200 can prepare two or more sheets to be sorted in advance. When multiple sorting devices 300 need to be changed, the sheet changing device 200 can immediately move to the top of another sorting device 300 after changing the sheet of one of the sorting devices 300, and change the sheet of the other sorting device 300; it can reduce the frequency of the sheet changing device 200 moving between the sorting device 300 and the magazine 400, and improve the sorting efficiency. The sorting device is applied to the technical fields such as sorting machines.

[0040] See also Figure 3 In a specific embodiment of the present invention, the mounting frame 210 is provided with a first slide rail 211, a first slider 212 slidably provided on the first slide rail 211, a second slide rail 213 provided on the first slider 212, and a second slider 214 slidably provided on the second slide rail 213, and the clamp mechanism 230 is provided on the second slider 214; the driving mechanism 220 can drive the first slider 212 to slide along the first direction, and can drive the second slider 214 to slide along the second direction. The first direction is Figure 1 and Figure 2 The second direction is the direction indicated by X in Figure 2In a specific embodiment, the first direction may be the width direction of the mounting frame 210, and the second direction may be the vertical direction of the mounting frame 210. Specifically, the driving mechanism 220 can drive the first slider 212 to slide in the first direction, and then drive the clamping mechanism 230 to move in the first direction to switch the position of the clamping mechanism 230 so that the clamping mechanism 230 is aligned with different accommodating positions; at the same time, the driving mechanism 220 can also drive the second slider 214 to slide in the second direction, and then drive the clamping mechanism 230 to move in the second direction to transfer the sorted sheet to the accommodating position or to make the sheet to be sorted leave the accommodating position. The transmission is carried out in a manner of cooperating between the slide rail and the slider, which can ensure the stability of the clamping mechanism 230 during movement.

[0041] See also Figure 3 In a specific embodiment of the present invention, the driving mechanism 220 includes a first transmission rod 221, a second transmission rod 222, a first driven wheel 223, a second driven wheel 224, a first transmission belt 225, a second transmission belt 226, a first driving member 227 capable of driving the first transmission rod 221 to rotate, and a second driving member 228 capable of driving the second transmission rod 222 to rotate. The first transmission rod 221 and the first driven wheel 223 are arranged on the mounting frame 210 at intervals along the first direction, and the first transmission rod 221 and the first driven wheel 223 are connected by the first transmission belt 225. The second transmission rod 222 and the second driven wheel 224 are arranged on the mounting frame 210 at intervals along the second direction, and the second transmission rod 222 and the second driven wheel 224 are connected by the second transmission belt 226. The first slider 212 is connected to the first transmission belt 225, and the second slider 214 is connected to the second transmission belt 226. Specifically, the first driving member 227 can drive the first transmission rod 221 to rotate, and then drive the first transmission belt 225 to move. Since the first slider 212 is connected to the first transmission belt 225, when the first driving member 227 drives the first transmission rod 221 to rotate, the first slider 212 will be driven to slide along the first direction, and then the clamping mechanism 230 will be driven to slide along the first direction. The second driving member 228 can drive the second transmission rod 222 to rotate, and then drive the second transmission belt 226 to move. Since the second slider 214 is connected to the second transmission belt 226, when the second driving member 228 drives the second transmission rod 222 to rotate, the second slider 214 will be driven to slide along the second direction, and then the clamping mechanism 230 will be driven to slide along the second direction. The driving mechanism 220 is transmitted by the transmission belt, which has the characteristics of simple structure and convenient manufacturing, can simplify the structure, and reduce the difficulty of manufacturing. In a specific embodiment, the first driving member 227 and the second driving member 228 can be a driving motor.

[0042] See also Figure 5In a specific embodiment of the present invention, the clamping mechanism 230 includes a driving unit 231 disposed on the second slider 214 and two clamping units 232 disposed on the driving unit 231. The driving unit 231 can drive the two clamping units 232 to move in directions approaching each other or moving away from each other. Specifically, the driving unit 231 can drive the two clamping units 232 to move in directions approaching each other to clamp the sheet; and the driving unit 231 can also drive the two clamping units 232 to move in directions away from each other to release the sheet. The driving unit 231 drives the two clamping units 232 to move in directions approaching each other or moving away from each other to clamp or release the sheet, which has the characteristics of simple structure and convenient manufacturing, can simplify the structure and reduce the difficulty of manufacturing. In a specific embodiment, the driving unit 231 can be a two-way telescopic cylinder. In this embodiment, the driving unit 231 can drive the two clamping units 232 to move toward or away from each other to clamp or release the sheet; the number of the clamping mechanisms 230 is two, and the two clamping mechanisms 230 are arranged at intervals along the third direction, wherein the third direction refers to Figure 1 and Figure 2 The position indicated by Y in the figure is the length direction of the mounting frame 210.

[0043] In a specific embodiment of the present invention, the second slider 214 is provided with a connecting frame 2141, the driving unit 231 is provided with a connecting block 2311, the connecting block 2311 is slidably provided on the connecting frame 2141 along the second direction, and the connecting frame 2141 is provided with a fixing plate 2142, and an elastic member 2312 is provided between the connecting block 2311 and the fixing plate 2142. Specifically, by providing the elastic member 2312 between the second slider 214 and the driving unit 231, it can provide a buffer for the sheet when the clamping mechanism 230 clamps and transports the sheet, so as to prevent the sheet from being damaged due to collision. In a specific embodiment, the elastic member 2312 can be a coil spring, and a bolt for guiding it is penetrated in the elastic member 2312.

[0044] See also Figure 4 In a specific embodiment of the present invention, the mounting frame 210 is provided with a plurality of guide mechanisms 240 corresponding to the plurality of accommodating positions, each guide mechanism 240 comprises two guide blocks 241 relatively arranged on both sides of the accommodating position and two guide wheels 242 rotatably connected to the two guide blocks 241 in a one-to-one correspondence, each guide block 241 is slidably arranged on the mounting frame 210, and each guide wheel 242 is provided with a guide groove 243. Specifically, when the driving mechanism 220 drives the clamping mechanism 230 to move along the second direction to transfer the sorted sheet to the accommodating position or to make the sheet to be sorted leave the accommodating position, the two sides of the sheet are respectively inserted into the guide grooves 243 of the two guide wheels 242, which can provide guidance for the sheet to ensure the accuracy and stability of the position of the sheet when it is transferred to the accommodating position or leaves the accommodating position.

[0045] In a specific embodiment of the present invention, the guide block 241 is formed with a connecting portion, and a reset member is arranged between the connecting portion and the mounting frame 210, wherein the distance between the two guide wheels 242 on the guide block 241 is slightly greater than the width of the sheet along the third direction. In this embodiment, the guide block 241 has an initial position, and the reset member can provide a thrust to push the guide block 241 back to the initial position. Specifically, when the sorted sheet is transported to the accommodation position or the sheet to be sorted is separated from the accommodation position, as the second driving member 228 drives the sheet to move along the second direction, the two sides of the sheet will first be inserted into the guide groove 243 of the guide wheel 242, and then the guide wheel 242 will be squeezed to both sides, so that the two guide blocks 241 move in a direction away from each other. In this process, the reset member can provide a thrust, thereby causing the guide wheels 242 of the two guide blocks 241 to clamp the sheet; it can ensure the accuracy and stability of the position of the sheet when it is transported to the accommodation position or separated from the accommodation position. In a specific embodiment, the reset member can be a reset spring.

[0046] See also Figure 2 , Figure 3 and Figure 6 In a specific embodiment of the present invention, the film changing device 200 further includes a clamping mechanism 250 disposed on the mounting frame 210, each accommodation position is arranged below the clamping mechanism 250 at intervals along the first direction, and the clamping mechanism 250 includes a mounting block 251 disposed on the mounting frame 210, a plurality of driving cylinders 252 arranged one by one corresponding to the plurality of accommodation positions, and two clamping blocks 253 disposed on the driving cylinder 252, and the driving cylinder 252 can drive the two clamping blocks 253 to move in a direction of approaching each other or moving away from each other. In this embodiment, when the sheet is transported to the accommodation position, the driving cylinder 252 drives the two clamping blocks 253 to move in a direction of approaching each other to clamp the sheet, thereby fixing the sheet in the accommodation position; when the sheet needs to be separated from the accommodation position, the sheet is first clamped by the clamping mechanism 230, and then the driving cylinder 252 drives the two clamping blocks 253 to move in a direction of moving away from each other to release the sheet, thereby ensuring that the sheet can be transported by the clamping mechanism 230. In a specific embodiment, the driving cylinder 252 may be a bidirectional telescopic cylinder.

[0047] See also Figure 1In a specific embodiment of the present invention, each sorting device 300 includes a swing arm mechanism 310 and two workbenches 320 respectively arranged on both sides of the swing arm mechanism 310, and the wafer changing device 200 can move to the top of any one of the workbenches 320; when the wafer changing device 200 is above one of the workbenches 320, the driving mechanism 220 can drive the clamping mechanism 230 to move, so as to transfer the sheet at the corresponding workbenches 320 to one of the accommodating positions, and transfer the sheet at the other accommodating position to the workbenches 320. In this embodiment, the swing arm mechanism 310 is used to transfer the qualified chips attached to the sheet on one of the workbenches 320 to the sheet on the other workbenches 320; after the transfer is completed, that is, after the sorting is completed, the driving mechanism 220 can be controlled to drive the clamping mechanism 230 to move, so as to replace the sheets on the two workbenches 320. In a specific embodiment, the two workbenches 320 are respectively a wafer workbench 320 and a bin workbench 320 , wherein the swing arm mechanism 310 is used to transfer the qualified chips attached to the sheet of the wafer workbench 320 to the sheet of the bin workbench 320 .

[0048] See also Figure 1 In a specific embodiment of the present invention, the sorting device further includes a magazine 400, and the sheet changing device 200 can move to the top of the magazine 400; when the sheet changing device 200 is above the magazine 400, the driving mechanism 220 can drive the clamping mechanism 230 to move, so as to transfer the sorted sheets at the receiving position to the magazine 400, and to transport the sheets to be sorted in the magazine 400 to the receiving position. In this embodiment, the magazine 400 is used to store the sheets, and the driving mechanism 220 can drive the clamping mechanism 230 to move, so as to transfer the sorted sheets at the receiving position to the magazine 400, and to transport the sheets to be sorted in the magazine 400 to the receiving position, thereby replacing the sheets of the corresponding workbench 320. In this embodiment, a driving device is provided on the machine base 100. Specifically, the driving device includes a first slide seat provided on the machine base 100, a first sliding block slidably provided on the first slide seat, a first driving motor capable of driving the first sliding block to slide in a first direction, a second slide seat provided on the first sliding block, a second sliding block slidably provided on the second slide seat, and a second driving motor capable of driving the second sliding block to slide in a third direction. The mounting frame 210 is provided on the second sliding block.

[0049] The sheet replacement process of the sorting equipment is as follows (taking the case where the storage position initially does not store sheets, the number of storage positions is three, and two workbenches 320 need to replace sheets as an example, wherein the three storage positions are respectively recorded as the first storage position, the second storage position and the third storage position, and the two workbenches 320 are respectively recorded as the first workbench and the second workbench):

[0050] 1. The driving device drives the sheet changing device 200 to move to the top of the magazine 400, and then the driving mechanism 220 drives the clamping mechanism 230 to move, so as to transfer the two sheets to be replaced in the magazine 400 to the first accommodating position and the second accommodating position respectively;

[0051] 2. The driving device drives the sheet changing device 200 to move to the top of the first workbench, and then the driving mechanism 220 drives the clamping mechanism 230 to move, so as to transfer the sheets sorted by the first workbench to the third storage position, and transfer the sheets to be replaced in the second storage position to the first workbench;

[0052] 3. The driving device drives the sheet changing device 200 to move to the top of the second workbench, and then the driving mechanism 220 drives the clamping mechanism 230 to move, so as to transfer the sheet sorted by the second workbench to the second storage position, and transfer the sheet to be replaced in the first storage position to the second workbench;

[0053] 4. The driving device drives the sheet changing device 200 to move to the top of the magazine 400, and then the driving mechanism 220 drives the clamping mechanism 230 to move, so as to transfer the sorted sheets at each accommodating position to the magazine 400;

[0054] When a workbench 320 needs to change materials, repeat steps 1 to 4 again; it should be noted that if only one workbench 320 needs to change materials, one of steps 2 and 3 can be omitted, and when storing the sheets to be sorted in the receiving positions, it is necessary to ensure that at least one receiving position has no sheets stored in order to store the sheets that have been sorted by the sorting device 300.

[0055] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sorting device, characterized in that: include: Machine base; A plurality of sorting devices, wherein the plurality of sorting devices are arranged at intervals on the machine base; A sheet changing device, the sheet changing device is movably arranged on the machine base, and the sheet changing device can move to the top of any one of the sorting devices, the sheet changing device comprises a mounting frame, a driving mechanism and a clamping mechanism movably arranged on the mounting frame, the mounting frame has at least three accommodating positions, each of which is used to store sheets; When the sheet changing device is located above any one of the sorting devices, the driving mechanism can drive the clamping mechanism to move, so as to transfer the sheet sorted by the corresponding sorting device to one of the accommodating positions, and then transfer the sheet to be sorted at another accommodating position to the sorting device; The mounting frame is provided with a first slide rail, a first slider slidably arranged on the first slide rail, a second slide rail arranged on the first slider, and a second slider slidably arranged on the second slide rail, and the clamping mechanism is arranged on the second slider; the driving mechanism can drive the first slider to slide in a first direction, and can drive the second slider to slide in a second direction; The driving mechanism comprises a first transmission rod, a second transmission rod, a first driven wheel, a second driven wheel, a first transmission belt, a second transmission belt, a first driving member capable of driving the first transmission rod to rotate, and a second driving member capable of driving the second transmission rod to rotate, the first transmission rod and the first driven wheel are arranged on the mounting frame at intervals along a first direction, and the first transmission rod and the first driven wheel are connected by a first transmission belt, the second transmission rod and the second driven wheel are arranged on the mounting frame at intervals along a second direction, and the second transmission rod and the second driven wheel are connected by a second transmission belt, the first slider is connected to the first transmission belt, and the second slider is connected to the second transmission belt; The clamp mechanism comprises a driving unit arranged on the second slider and two clamping units arranged on the driving unit, wherein the driving unit can drive the two clamping units to move in a direction of approaching or moving away from each other; the second slider is provided with a connecting frame, the driving unit is provided with a connecting block, the connecting block is slidably arranged on the connecting frame along the second direction, and the connecting frame is provided with a fixing plate, and an elastic member is provided between the connecting block and the fixing plate; The mounting frame is provided with a plurality of guide mechanisms which are arranged one-to-one corresponding to the plurality of accommodating positions, each of the guide mechanisms comprises two guide blocks which are arranged on both sides of the accommodating positions relative to each other and two guide wheels which rotate one-to-one corresponding to the two guide blocks, each of the guide blocks is slidably arranged on the mounting frame, and each of the guide wheels is provided with a guide groove; the guide block is formed with a connecting portion, and a reset member is arranged between the connecting portion and the mounting frame.

2. The sorting device according to claim 1, characterized in that: The film changing device also includes a clamping mechanism arranged on the mounting frame, and each of the accommodating positions is arranged below the clamping mechanism at intervals along the first direction. The clamping mechanism includes a mounting block arranged on the mounting frame, a plurality of driving cylinders arranged one-to-one corresponding to the plurality of accommodating positions, and two clamping blocks arranged on the driving cylinders, and the driving cylinders can drive the two clamping blocks to move in directions close to or away from each other.

3. The sorting device according to claim 1, characterized in that: Each of the sorting devices comprises a swing arm mechanism and two workbenches respectively arranged on both sides of the swing arm mechanism, and the sheet changing device can move to the top of any one of the workbenches; When the sheet changing device is above one of the workbenches, the driving mechanism can drive the clamping mechanism to move, so as to transfer the sorted sheets at the corresponding workbench to one of the receiving positions, and transfer the sheets to be sorted at the other receiving position to the workbench.

4. The sorting device according to claim 1, characterized in that: The sorting equipment also includes a magazine, and the sheet changing device can move to the top of the magazine; When the sheet changing device is located above the magazine, the driving mechanism can drive the clamping mechanism to move, so as to transfer the sorted sheets at the accommodating position to the magazine, and to transport the sheets to be sorted in the magazine to the accommodating position.

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