Carrying device and screen printing apparatus

Abstract

The utility model provides a kind of carrying device and silk screen printing equipment, carrying device includes carrying main body, including first connecting frame, the second connecting frame in the first direction two sides of the first connecting frame, several groups of support unit for jacking or lowering battery piece, the support unit includes the support piece respectively connected on two second connecting frames, the support piece is used to contact with the lower surface of battery piece;First driving piece for driving the carrying main body moves along height direction;Second driving piece for driving the carrying main body moves along the second direction perpendicular to the first direction.The support unit of the carrying device in the utility model contacts with the lower surface of battery piece, so that battery piece can be jacked upward from feeding device to carry battery piece, so that the adsorption force used to adsorb battery piece can be reduced, and the carrying efficiency of battery piece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a semiconductor technical field especially a carrying device and silk screen printing equipment. BACKGROUND

[0002] The existing carrying device generally sucks the battery piece from the top by the suction cup to carry the battery piece, for this carrying mode, first, the suction cup needs to have greater suction force so as to adsorb and fix the battery piece, second, when sucking the battery piece, the carrying device needs to move downward to suck the battery piece, and then moves upward to separate the battery piece from the transmission device, thus causing the decline of carrying efficiency.

[0003] Therefore, it is necessary to provide a carrying device to solve the above technical problems. SUMMARY

[0004] In order to achieve the above purpose, the utility model provides a carrying device, which comprises a carrying main body, a first connecting frame, a second connecting frame located on both sides of the first connecting frame along a first direction, a plurality of groups of supporting units for jacking up or lowering the battery piece, the supporting unit comprises a supporting piece connected to two second connecting frames respectively, and the supporting piece is used to contact the lower surface of the battery piece; a first driving piece for driving the carrying main body to move along the height direction; a second driving piece for driving the carrying main body to move along a second direction perpendicular to the first direction.

[0005] As a further improvement of the utility model, the first connecting frame comprises a driving part connected with the second driving part, and a connecting part connecting the driving part and the two second connecting frames.

[0006] As a further improvement of the utility model, the supporting units are symmetrically arranged on both sides of the connecting part along the second direction.

[0007] As a further improvement of the utility model, two groups of supporting units are arranged on the same side of the connecting part, and the spacing between the two groups of supporting units located on the same side of the connecting part is smaller than the spacing between the two groups of supporting units located on different sides of the connecting part and adjacent to each other.

[0008] As a further improvement of the utility model, the second connecting frame is internally provided with a first air duct, the supporting piece comprises a second air duct located in the supporting piece and communicating with the first air duct, and a suction port located at the top of the supporting piece and communicating with the second air duct.

[0009] As a further improvement of the utility model, the supporting piece further comprises a fixing part connected with the second connecting frame, a supporting part perpendicular to the fixing part, and a bearing part located at one end of the supporting part away from the fixing part, and the suction port is located at the top of the bearing part.

[0010] As a further improvement of the utility model, the bottom of the second connecting frame is connected with a sealing plate for sealing the first air duct, and the top of the second connecting frame is provided with an air duct interface in communication with the first air duct.

[0011] As a further improvement of the utility model, the carrying main body further comprises a reinforcing plate connected to the top of the second connecting frame and a plurality of reinforcing rods connected between the reinforcing plate and the second connecting frames.

[0012] As a further improvement of the utility model, the reinforcing rods and the supporting units are arranged in one-to-one correspondence, and the midlines of the reinforcing rods and the supporting units coincide in the height direction.

[0013] As a further improvement of the utility model, all the reinforcing rods are located at the same height, and the height difference between the reinforcing rods and the supporting units is greater than a first preset interval.

[0014] The utility model also provides a screen printing equipment, including along the second direction arrangement's feeding device, printing device, the printing device includes printing platform and the printing head in the printing platform top;

[0015] The carrying device is used for carrying the battery piece from the feeding device to the printing platform.

[0016] The printing platform is provided with a first displacement slot for the supporting unit to move in the height direction and a second displacement slot for the supporting unit to move in the second direction on both sides of the first direction, and the first displacement slot and the second displacement slot are in communication.

[0017] As a further improvement of the utility model, the feeding device comprises a plurality of second transmission members arranged in parts, the second transmission member comprises a supporting frame and a transmission belt located on both sides of the supporting frame perpendicular to the battery piece transmission direction, and the interval of the two transmission belts is smaller than the interval of the supporting units on the two second connecting frames.

[0018] The supporting unit of the carrying device in the utility model is in contact with the lower surface of the battery piece, so that the battery piece can be lifted upward from the feeding device for carrying, thereby reducing the adsorption force for adsorbing the battery piece and improving the carrying efficiency of the battery piece. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute undue limitation on the present application. In the drawings:

[0020] Figure 1 It is a front view of the carrying device of the present application;

[0021] Figure 2 It is a top view of the carrying device of the present application;

[0022] Figure 3 It is a schematic view of another perspective of the carrying device of the present application;

[0023] Figure 4 It is a structural schematic view of the carrying body of the present application;

[0024] Figure 5 It is a schematic view of the arrangement of the upper support unit of the carrying body of the present application;

[0025] Figure 6 It is a front view of the carrying body of the present application;

[0026] Figure 7 It is a bottom view of the carrying body of the present application;

[0027] Figure 8 It is Figure 7 An enlarged structural schematic view of A;

[0028] Figure 9 It is Figure 5 A sectional view along A-A direction;

[0029] Figure 10 It is a structural schematic view of the support of the present application;

[0030] Figure 11 It is a sectional view of the support of the present application;

[0031] Figure 12 It is a whole structural schematic view of the screen printing equipment of the present application;

[0032] Figure 13 It is a partial structural schematic view of the screen printing equipment of the present application;

[0033] Figure 14 It is a structural schematic view of the feeding device of the present application;

[0034] Figure 15 It is a structural schematic view of the conveying area of the present application;

[0035] Figure 16 It is a structural schematic view of the feeding area of the present application;

[0036] Figure 17 It is the schematic view of the half battery piece in the loading area according to the preset interval arrangement of the utility model;

[0037] Figure 18 It is the structural schematic view of the carrying device in the loading area of the utility model;

[0038] Figure 19 It is the schematic view of the carrying device waiting for carrying the half battery piece of the utility model;

[0039] Figure 20 It is the schematic view of the carrying device jacking the half battery piece of the utility model;

[0040] Figure 21 It is the structural schematic view of the carrying device and the printing device of the utility model;

[0041] Figure 22 It is the structural schematic view of the printing platform of the utility model;

[0042] Figure 23 It is the overhead view of the printing platform of the utility model;

[0043] Figure 24 It is the side view of the printing platform of the utility model;

[0044] Figure 25 It is the schematic view of the carrying device placing the battery piece on the printing platform in one perspective of the utility model;

[0045] Figure 26 It is the schematic view of the carrying device placing the battery piece on the printing platform in another perspective of the utility model;

[0046] Figure 27 It is the schematic view of the carrying device returning to the loading area of the utility model;

[0047] In the drawing:

[0048] 100, feeding device; 101, transmission area; 101a, first transmission piece; 101b, third transmission piece; 101b-1, correcting piece; 102, loading area; 102a, loading position; 102b, second transmission piece; 102b-1, support frame; 102b-2, transmission belt; 102c, sensor.

[0049] 200, conveying device; 201, conveying main body; 201a, first connecting frame; 201a-1, driving part; 201a-2, connecting part; 201b, second connecting frame; 201b-1, first air channel; 201b-2, sealing plate; 201b-3, air channel interface; 201c, supporting unit; 201c-1, supporting piece; 201c-11 second air channel; 201c-12 suction port; 201c-13, fixing part; 201c-14, supporting part; 201c-15, bearing part; 201d, reinforcing plate; 201e, reinforcing rod; 202, first driving piece; 203, second driving piece;

[0050] 300, printing device; 301, printing carrier; 301a, first accommodation slot; 301b, second accommodation slot; 301c, supporting seat; 301d, bearing table; 302, printing head; 303, guide rail;

[0051] 400, blanking device. DETAILED DESCRIPTION

[0052] To make the objectives, technical solutions and advantages of the present application clearer, the following will describe the technical solutions of the present application in detail with specific embodiments and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0053] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0054] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0055] In the description of the utility model, unless otherwise specified and limited, it is necessary to explain that the terms "installation", "connection", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, it can also be the communication inside two elements, it can be directly connected, it can also be indirectly connected through intermediate medium, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to specific circumstances.

[0056] As Figures 1 to 11 The utility model provides a carrying device 200, it is used for carrying battery piece from feed device 100 to printing device 300.The carrying device 200 includes the carrying main body 201 for carrying battery piece, the first drive piece 202 for driving the carrying main body 201 moves along the height direction, the second drive piece 203 for driving the carrying main body 201 moves along the second direction.The feed device 100 and the printing device 300 are arranged along the second direction, under the common action of the first drive piece 202 and the second drive piece 203, the carrying main body 201 reciprocatingly moves between the feed device 100 and the printing device 300 to carry battery piece.

[0057] The carrying main body 201 includes the first connecting frame 201a, the second connecting frame 201b on both sides of the first connecting frame 201a along the first direction, a plurality of groups of support units 201c for jacking up or lowering battery piece, the support unit 201c includes the support piece 201c-1 connected to two second connecting frames 201b respectively, and the support piece 201c-1 is used to contact the lower surface of battery piece.The first direction and the second direction are perpendicular.

[0058] The first connecting frame 201a includes the drive part 201a-1 connected with the second drive piece 203, the connecting part 201a-2 connecting the drive part 201a-1 and two second connecting frames 201b.

[0059] The drive part 201a-1 is connected with the second drive piece 203, under the drive of the second drive piece 203, the drive part 201a-1 can drive the whole carrying main body 201 moves along the second direction.The drive part 201a-1 is provided with weight-reducing holes, so as to reduce the weight of the whole carrying main body 201.

[0060] The connecting portion 201a-2 is perpendicular to the driving portion 201a-1, and is connected to the middle of the driving portion 201a-1 and extends in the first direction. The bottom of the connecting portion 201a-1 is provided with a connecting leg on both sides of the second connecting frame 201b in the first direction, so as to be connected to the two second connecting frames 201b respectively. In order to reduce the weight of the connecting portion 201a-2, the height of one end of the connecting portion 201a-2 connected to the driving portion 201a-1 is greater than the height of the other end of the connecting portion 201a-2 away from the driving portion 201a-1.

[0061] In the embodiment, two connecting portions 201a-2 are arranged at intervals, and a vacuum generator is fixed to the top of the two connecting portions 201a-2, and the vacuum generator is connected to the support 201c-1, so as to provide negative pressure for the support 201c-1 to adsorb the battery piece, and improve the safety of the carrying main body 201 carrying the battery piece.

[0062] The two second connecting frames 201b are arranged in the first direction, and are parallel to each other and extend in the second direction, that is, the second connecting frame 201b and the connecting portion 201a-2 are perpendicular to each other. Specifically, the connecting portion 201a-2 and the two second connecting frames 201b are approximately projected in the height direction as an "H" shape.

[0063] The second connecting frame 201b is provided with a first air duct 201b-1 inside, and the top of the second connecting frame 201b is provided with an air duct interface 201b-3 in communication with the first air duct 201b-1. The air duct interface 201b-3 is connected to the vacuum generator, so as to form negative pressure in the first air duct 201b-1, and provide negative pressure for the support 201c-1 connected to the second connecting frame 201b through the first air duct 201b-1 to adsorb the battery piece.

[0064] In a specific embodiment, a plurality of independent first air ducts 201b-1 are arranged at intervals inside the second connecting frame 201b, and the number of the first air ducts 201b-1 is the same as the number of the support units 201c. Each first air duct 201b-1 is connected to a vacuum generator through a respective air duct interface 201b-3.

[0065] The bottom of the second connecting frame 201b is also connected with a sealing plate 201b-2 for sealing the first air channel 201b-1. Specifically, the bottom of the second connecting frame 201b is provided with a sealing groove, the bottom of the first air channel 201b-1 is open and communicates with the sealing groove, and the area of the sealing groove is greater than the area of the first air channel 201b-1. The first air channel 201b-1 is closed by fixing the sealing plate 201b-2 in the sealing groove.

[0066] A plurality of support units 201c are arranged along the second direction, and each support unit 201c is used to carry a battery piece. The support unit 201c includes the support member 201c-1 connected to the two second connecting frames 201b respectively. During carrying, the battery piece is located between the two second connecting frames 201b, and the support members 201c-1 on the two second connecting frames 201b are in contact with the two sides of the lower surface of the battery piece to carry the battery piece.

[0067] The support member 201c-1 is used to contact the lower surface of the battery piece. It can be understood that when the first driving member 202 drives the carrying body 201 to move upward, the support unit 201c lifts the battery piece upward; when the first driving member 202 drives the carrying body 201 to move downward, the support unit 201c lowers the battery piece.

[0068] In this embodiment, any support unit 201c includes four support members 201c-1, and the four support members 201c-1 are arranged in two groups respectively on the two second connecting frames 201b. It can be understood that the distance between the two support members 201c-1 on the same second connecting frame 201b in the support unit 201c is less than the size of the battery piece along the second direction; and the distance between the two support members 201c-1 on the two second connecting frames 201b in the support unit 201c is less than the size of the battery piece along the first direction.

[0069] The support units 201c are symmetrically arranged on both sides of the connecting portion 201a-2 along the second direction, i.e., the number of the support units 201c is even, and the carrying body 201 carries an even number of battery pieces at a time.

[0070] The carrying body 201 will be described in detail below by taking the carrying body 201 with four groups of support units 201c as an example.

[0071] The same side of the connecting part 201a-2 is provided with two groups of support units 201c, and the interval of the two groups of support units 201c located on the same side of the connecting part 201a-2 is smaller than the interval of the two groups of support units 201c located on different sides of the connecting part 201a-2 and adjacent to each other.

[0072] Referring to Figure 5 , four groups of support units 201c are support unit 1, support unit 2, support unit 3, and support unit 4, respectively. The support unit 1 and the support unit 2 are located on the same side of the connecting part 201a-2, and the support unit 3 and the support unit 4 are located on the same side of the connecting part 201a-2. The four support pieces 201c-1 in the support unit 201c enclose a rectangular local area, and the central axis of the rectangular local area in the second direction is defined as the center line of the support unit 201c.

[0073] Wherein, the interval of the center lines of the support unit 1 and the support unit 2 is L1, the interval of the center lines of the support unit 3 and the support unit 4 is also L1, and the interval of the center lines of the support unit 2 and the support unit 3 is L2, L2>L1.

[0074] The support piece 201c-1 includes a second air duct 201c-11 located therein and communicating with the first air duct 201b-1, and a suction port 201c-12 located at the top thereof and communicating with the second air duct 201c-11. The first air duct 201b-1 forms a negative pressure therein under the action of the vacuum generator, and the second air duct 201c-11 also forms a negative pressure therein in communication with the first air duct 201b-1, thereby adsorbing and carrying the battery piece through the suction port 201c-12, improving the safety of the carrying main body 201 carrying the battery piece, and preventing the battery piece from moving or falling.

[0075] The support piece 201c-1 further includes a fixed part 201c-13 connected with the second connecting frame 201b, a support part 201c-14 perpendicular to the fixed part 201c-13, a bearing part 201c-15 located at the end of the support part 201c-14 away from the fixed part 201c-13, and the suction port 201c-12 is located at the top of the bearing part 201c-15.

[0076] The support 201c-1 is in the shape of "T" in the height direction. One side of the second connecting frame 201b is provided with a mounting groove, and the fixed part 201c-13 is fixed in the mounting groove by bolts. The support part 201c-14 extends away from the second connecting frame 201b from the connecting end of the fixed part 201c-13. The height of the bearing part 201c-15 is greater than that of the support part 201c-14, that is, the bearing part 201c-15 is in contact with the lower surface of the battery piece. The second air duct 201c-11 penetrates the fixed part 201c-13, the support part 201c-14 and the bearing part 201c-15 to communicate with the adsorption port 201c-12.

[0077] Preferably, the length of the mounting groove along the second direction is greater than the length of the fixed part 201c-13 along the second direction, and the fixing hole on the fixed part 201c-13 matched with the bolt is provided as a long hole, so that the support 201c-1 can be fine-tuned along the second direction.

[0078] The carrying body 201 further comprises a reinforcing plate 201d connected to the top of the second connecting frame 201b, and a plurality of reinforcing rods 201e connected between the reinforcing plates 201d on the two second connecting frames 201d.

[0079] The reinforcing plate 201d is perpendicular to the second connecting frame 201b, and two reinforcing plates 201d are connected to each second connecting frame 201b, and the two reinforcing plates 201d are arranged on the two sides of the connecting part 201a-2. The reinforcing plate 201a is used to improve the stability of the carrying body 201 carrying the battery piece and prevent the second connecting frame 201b from shaking during movement.

[0080] The reinforcing rod 201e is parallel to the connecting part 201a-2, and the two ends of the reinforcing rod 201e are respectively connected to the reinforcing plates 201d of the two second connecting frames 201d. Specifically, the reinforcing plate 201d is provided with a mounting part, and the end of the reinforcing rod 201e is fixed to the mounting part. The reinforcing rod 201e is used to further improve the structural strength of the carrying body 201 as a whole and the stability of carrying the battery piece.

[0081] Preferably, the reinforcing rod 201e and the support unit 201c are one-to-one corresponding, and the midlines of the reinforcing rod 201e and the support unit 201c coincide in the height direction. Thus, the reinforcing rod 201e can be prevented from blocking the edge of the battery piece carried on the support unit 201c, affecting the subsequent camera shooting positioning.

[0082] It needs to be particularly pointed out that all the reinforcing rods 201e are located at the same height, and the height difference between the reinforcing rod 201e and the support 201c-1 is greater than a first preset interval. In this way, when the battery piece is lowered to the printing platform 301 of the printing device 300, the carrying body 201 can be moved from the printing device 300 to the feeding device 100 for the next carrying without being hindered. The first preset interval is specific to the printing platform 301.

[0083] The second driving member 203 adopts a linear motor, which can drive the rapid movement of the carrying body 201 in the second direction, and accurately control the movement position of the carrying body 201. The first driving member 202 adopts an electric cylinder + guide rail to drive the second driving member 203 and the carrying body 201 to move in the height direction.

[0084] In summary, the support unit 201c of the carrying device 200 in the present application is in contact with the lower surface of the battery piece, so that the battery piece can be lifted upward from the feeding device 100 for carrying the battery piece, thereby reducing the suction force required to adsorb the battery piece, while improving the carrying efficiency of the battery piece; the support unit 201c includes a support 201c-1 connected to two second connecting frames 201b, respectively, which can improve the stability during the carrying of the battery piece.

[0085] The present application also provides a screen printing equipment, and it needs to be particularly pointed out that the screen printing equipment described in the present application is applied to screen printing of half battery pieces. For the existing screen printing equipment for half battery pieces, each half battery piece needs to be equipped with a printing head, which will increase the cost of the screen printing equipment and slow down the printing efficiency. The screen printing equipment described in the present application aims to reduce the number of printing heads and improve the printing efficiency of half battery pieces, so that two half battery pieces can share one printing head, i.e. two printing areas are arranged on one printing head to simultaneously screen print two half battery pieces.

[0086] The screen printing equipment includes a feeding device 100 and a printing device 300 arranged in the second direction, and the carrying device 200 is used to carry the battery piece from the feeding device 100 to the printing device 300. The feeding device 100 includes a conveying area 101 and a feeding area 102, the printing device 300 includes a printing platform 301 and a printing head 302, and the printing head 302 has two printing areas.

[0087] Specifically, the feeding device 100 comprises a conveying area 101 and a feeding area 102 located downstream of the conveying area 101, the battery pieces are conveyed from the conveying area 101 to the feeding area 102, and the battery pieces are arranged at a preset interval in the feeding area 102 and wait for the carrying device 200 to carry and feed.

[0088] The conveying area 101 comprises a first conveying member 101a and a third conveying member 101b, the battery pieces are conveyed from the first conveying member 101a to the feeding area 102 via the third conveying member 101b. The third conveying member 101b is provided with a correcting member 101b-1 for correcting the pose of the battery pieces, the correcting member 101b-1 comprises two groups of correcting wheels which are symmetrically arranged along the central axis of the third conveying member 101b and can move towards or away from each other. The two groups of correcting wheels are used to correct the deviation of the battery pieces so that the battery pieces remain in a centered state on the third conveying member 101b.

[0089] The first conveying member 101a and the third conveying member 101b can be integrally arranged or separately arranged.

[0090] The feeding area 102 comprises a plurality of groups of feeding positions 102a arranged in the conveying direction of the battery pieces, any group of the feeding positions 102a comprises two second conveying members 102b arranged separately, and the two second conveying members 102b are respectively used to place two half battery pieces.

[0091] The two second conveying members 102b are arranged separately, that is, the two second conveying members 102b are independent of each other, and each second conveying member 102b can be controlled and switched independently. The second conveying member 102b is used to adjust the interval between the half battery pieces while conveying the half battery pieces, so that the half battery pieces are arranged at a preset interval.

[0092] It can be understood that the support units 201c and the second conveying members 102b correspond one by one, and a group of the support units 201c is responsible for carrying the half battery pieces placed on one second conveying member 102b.

[0093] The second conveying member 102b comprises a support member 102b-1 and a conveying belt 102b-2 located on both sides of the support frame 102b-1 perpendicular to the conveying direction of the battery pieces. In order to enable the support member 201c-1 to lift the battery pieces upward on the conveying belt 102b-2, the interval between the two conveying belts 102b-2 is smaller than the interval between the two support members 201c-1 located on the two second connecting frames 201b respectively.

[0094] The feeding area 102 further comprises sensors 102c for detecting the positions of the half-cell sheets on the second conveying members 102b. The sensors 102c and the second conveying members 102b are arranged one by one. The positions of the half-cell sheets on each second conveying member 102b are detected by the sensors 102c, and the operation of each second conveying member 102b is controlled to adjust the positions of the half-cell sheets thereon, so that the half-cell sheets are arranged at a preset interval in the feeding area 102. The sensors 102c can be laser sensors capable of locating the positions of the half-cell sheets.

[0095] If two half-cell sheets share one printing head 302, the interval between the two half-cell sheets needs to be reduced, and the consistency between the interval of the two half-cell sheets and the interval of the two printing areas on the printing head 302 needs to be ensured.

[0096] To reduce the interval between the two half-cell sheets, the present application replaces the existing two conveying lines with one conveying line. Meanwhile, the present application changes the placement direction of the half-cell sheets during conveying, i.e., the width direction of the half-cell sheets is consistent with the conveying direction, so that the shape of the printing head 302 is not too long, and the printing and structural stability of the printing head 302 are affected.

[0097] To ensure the consistency between the interval of the two half-cell sheets and the interval of the two printing areas on the printing head 302, two second conveying members 102b are arranged separately to place two half-cell sheets, and each second conveying member 102b can be controlled individually to adjust the positions of the half-cell sheets thereon, so that the two half-cell sheets in the same feeding position 102a are arranged at a preset interval, which is the interval of the two printing areas on the printing head 302.

[0098] Corresponding to the four groups of support units 201c, the feeding area 102 comprises two groups of feeding positions 102a and four second conveying members 102b arranged separately.

[0099] In the conveying direction of the cell sheets, the four second conveying members 102b are second conveying member 1, second conveying member 2, second conveying member 3, and third conveying member 4. The second conveying member 1 and the second conveying member 2 are located in the same group of feeding positions 102a, and the two half-cell sheets on the second conveying member 1 and the second conveying member 2 share one printing head. The second conveying member 3 and the third conveying member 4 are located in the same group of feeding positions 102a, and the two half-cell sheets on the second conveying member 3 and the third conveying member 4 share one printing head.

[0100] It can be understood that two said printing heads 302 need two said printing tables 301, in order to realize the one-time carrying of four half-cell pieces to two said printing tables 301 by said carrying device 200, it is necessary to keep a certain distance between two said printing tables 301. In this way, compared with two half-cell pieces located in the same said feeding area 102, the piece spacing of the two half-cell pieces on said second conveying member 2 and said second conveying member 3 needs to be appropriately increased.

[0101] Specifically, the four cell pieces in the feeding area 102 are arranged according to the following spacing: the piece spacing of the two half-cell pieces on the second conveying member 1 and the second conveying member 2 is ΔL1, the piece spacing of the two half-cell pieces on the second conveying member 3 and the second conveying member 4 is also ΔL1, ΔL1 is the distance between the two printing areas on the printing head 302; the piece spacing of the two half-cell pieces on the second conveying member 2 and the second conveying member 3 is ΔL2, and ΔL2>ΔL1.

[0102] In order to ensure that the four groups of said support units 201c on said carrying body 201 can stably carry four half-cell pieces, L1=L+ΔL1, L2=L+ΔL2, wherein L is the width of the half-cell piece. In this way, as long as the said carrying body 201 is moved so that the center axis of the carrying body 201 and the center axis of the feeding area 102 coincide in the height direction, the center line of each said support unit 201c and the center axis of each half-cell piece can coincide, thereby stably carrying four half-cell pieces at one time.

[0103] The distance ΔL1 between the two said printing areas is 30-40mm, if the distance is too small, the two printing areas may affect each other when printing two half-cell pieces, and the printing effect is poor; if the distance is too large, the volume of the printing head 302 will be increased.

[0104] Preferably, the distance between the center line of the second conveying member 1 along the cell piece conveying direction and the center line of the second conveying member 2 along the cell piece conveying direction is L1. The distance between the center line of the second conveying member 3 along the cell piece conveying direction and the center line of the second conveying member 4 along the cell piece conveying direction is also L1. The distance between the center line of the second conveying member 2 along the cell piece conveying direction and the center line of the second conveying member 3 along the cell piece conveying direction is L2. In this way, as long as the center axis of the half-cell piece on each said second conveying member 102b along the width direction coincides with the center line of the second conveying member 102b, the half-cell piece can be arranged according to the above-mentioned spacing.

[0105] The printing platform 301 is provided with a first displacement slot 301a for moving the support unit 201c in the height direction and a second displacement slot 301b for moving the support unit 201c in the second direction on both sides of the first direction.

[0106] Two half-cell pieces are placed on each printing platform 301, and the half-cell pieces carried by the two groups of support units 201c on the same side of the connecting part 201a-2 are placed on the same printing platform 301.

[0107] The printing platform 301 includes a support seat 301c and a bearing table 301d on the top of the support seat 301c, and the bearing table 301d is used to place half-cell pieces. The first displacement slot 301a is arranged on both sides of the bearing table 301d in the first direction, and the first displacement slot 301a penetrates the bearing table 301d in the height direction. The support members 201c-1 on the two second connecting frames 201b can respectively move downward from the first displacement slots 301a on both sides of the bearing table 301d, so as to place the half-cell pieces carried by the support units 201c on the bearing table 301d.

[0108] It can be understood that the number and interval of the first displacement slots 301a on the bearing table 301d match the number and interval of the support members 201c-1.

[0109] The second displacement slot 301b is located below the bearing table 301d and communicates with the first displacement slot 301a, and the second displacement slot 301b extends in the second direction. In this way, when the support member 201c-1 moves downward from the first displacement slot 301a into the second displacement slot 301b, it can move in the second direction to return to the feeding area 102.

[0110] It should be particularly pointed out that the first preset interval is the thickness of the support seat 301c. In this way, when the support member 201c-1 is located in the second displacement slot 301b, the reinforcing rod 201e is located above the bearing table 301d, so that the carrying body 201 can be moved in the second direction to return to the feeding area 102 without being blocked.

[0111] The printing head 302 has two printing areas. The printing head 302 is located above the printing platform 301, and the printing platform 301 can move along the second direction. After the conveying device 200 places the half-cell pieces on the printing platform 301, the printing platform 301 moves towards the printing head 302 until it is directly below the printing head 302, and then the printing head 302 moves downward to perform screen printing on the two half-cell pieces on the printing platform 301.

[0112] The printing device 300 further comprises a guide rail 303 extending along the second direction, and the printing platform 301 is slidingly installed on the guide rail 303.

[0113] The screen printing device further comprises a discharging device 400 located downstream of the printing device 300, and another conveying device 200 for conveying the half-cell pieces on the printing platform 301 to the discharging device 400.

[0114] The guide rail 303 extends from the feeding device 100 to the discharging device 400, and each end of the guide rail 303 along the extension direction has a conveying device 200. The printing head 302 is located between the feeding device 100 and the discharging device 400.

[0115] The printing platform 301 first moves to the side where the feeding device 100 is located, and the conveying device 200 on this side conveys the half-cell pieces to be printed on the feeding device 100 to the printing platform 301. Then the printing platform 301 moves along the guide rail 303 to be directly below the printing head 302, and the printing head 302 moves downward to perform screen printing on the half-cell pieces on the printing platform 301. After printing is completed, the printing platform 301 continues to move along the guide rail 303 to the side where the discharging device 400 is located, and the conveying device 200 on this side conveys the printed half-cell pieces on the printing platform 301 to the discharging device 400.

[0116] The conveying process of the conveying device 200 is described in detail below, and the conveying device 200 used for conveying half-cell pieces to be printed is taken as an example.

[0117] In the initial state, the conveying body 201 is located in the feeding area 102, the central axis of the conveying body 201 and the central axis of the feeding area 102 coincide in the height direction, and the height of the support member 201c-1 is less than the height of the conveying belt 102b-2, i.e. the support member 201c-1 is located below the half-cell pieces conveyed on the second conveying member 102b;

[0118] When the half battery pieces in the feeding area 102 are arranged according to the preset interval, the first driving member 202 is started to drive the carrying body 201 to move upward, the supporting member 201c-1 contacts the bottom of the half battery piece to lift the half battery piece, so that the half battery piece is separated from the conveying belt 102b-2;

[0119] When the carrying body 201 rises to the preset height, the second driving member 203 is started to drive the carrying body 201 and the half battery piece thereon to move along the second direction towards the printing platform 301, and the movement distance of the carrying body 201 is accurately controlled by the second driving member 203, so that each supporting member 201c-1 is aligned with the first displacement slot 301a in the height direction;

[0120] The first driving member 202 is started to drive the carrying body 201 and the half battery piece thereon to move downward, the supporting member 201c-1 passes through the first displacement slot 301a and enters the second displacement slot 301b, and the half battery piece is placed on the bearing platform 301d;

[0121] The second driving member 203 is started to drive the carrying body 201 to move along the second direction towards the feeding area 102 until the carrying body 201 returns to the initial position.

[0122] It can be understood that the carrying path of the carrying body 201 is in the shape of a Chinese character 'kou'. The carrying device 200 for carrying the printed half battery piece refers to the above steps and will not be described in detail.

[0123] In summary, the screen printing equipment can share one printing head for two half battery pieces, thereby reducing the cost of the screen printing equipment and improving the screen printing efficiency.

[0124] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments that can be understood by those skilled in the art.

[0125] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not used to limit the protection scope of the present application, and any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A conveying device (200), characterized in that, include: The transport body (201) includes a first connecting frame (201a), second connecting frames (201b) located on both sides of the first connecting frame (201a) along a first direction, and a plurality of support units (201c) for lifting or lowering the battery cells. Each support unit (201c) includes a support member (201c-1) respectively connected to two of the second connecting frames (201b). The support member (201c-1) is used to contact the lower surface of the battery cells. A first driving component (202) is used to move the conveying body (201) along the height direction; A second drive member (203) is used to move the transport body (201) along a second direction perpendicular to the first direction.

2. The conveying device (200) according to claim 1, characterized in that: The first connecting frame (201a) includes a driving part (201a-1) connected to the second driving member (203) and a connecting part (201a-2) connecting the driving part (201a-1) and the two second connecting frames (201b).

3. The conveying device (200) according to claim 2, characterized in that: The support unit (201c) is symmetrically arranged on both sides of the connecting part (201a-2) along the second direction.

4. The conveying device (200) according to claim 3, characterized in that: Two sets of support units (201c) are provided on the same side of the connecting part (201a-2). The distance between the two sets of support units (201c) on the same side of the connecting part (201a-2) is smaller than the distance between the two sets of support units (201c) on different sides of the connecting part (201a-2) and adjacent to each other.

5. The conveying device (200) according to any one of claims 1 to 4, characterized in that: The second connecting frame (201b) is provided with a first air passage (201b-1) inside, and the support member (201c-1) includes a second air passage (201c-11) located inside and connected to the first air passage (201b-1), and an adsorption port (201c-12) located on its top and connected to the second air passage (201c-11).

6. The conveying device (200) according to claim 5, characterized in that: The support member (201c-1) further includes a fixing part (201c-13) connected to the second connecting frame (201b), a support part (201c-14) perpendicular to the fixing part (201c-13), and a bearing part (201c-15) located at the end of the support part (201c-14) away from the fixing part (201c-13). The suction port (201c-12) is located on the top of the bearing part (201c-15).

7. The conveying device (200) according to claim 5, characterized in that: The bottom of the second connecting frame (201b) is connected to a sealing plate (201b-2) for sealing the first air passage (201b-1), and the top of the second connecting frame (201b) is provided with an air passage interface (201b-3) communicating with the first air passage (201b-1).

8. The conveying device (200) according to claim 1, characterized in that: The transport body (201) also includes a reinforcing plate (201d) connected to the top of the second connecting frame (201b) and a plurality of reinforcing rods (201e) connected between the reinforcing plates (201d) on the two second connecting frames (201b).

9. The conveying device (200) according to claim 8, characterized in that: The reinforcing rod (201e) and the supporting unit (201c) are arranged in a one-to-one correspondence, and the center lines of the reinforcing rod (201e) and the supporting unit (201c) coincide in the height direction.

10. The conveying device (200) according to claim 9, characterized in that: All the reinforcing rods (201e) are at the same height, and the height difference between the reinforcing rods (201e) and the support members (201c-1) is greater than the first preset spacing.

11. A screen printing device, characterized in that, include: The feeding device (100) and printing device (300) are arranged along the second direction. The printing device (300) includes a printing stage (301) and a printing head (302) located above the printing stage (301). The conveying device (200) according to any one of claims 1 to 10 is used to convey the battery cells from the feeding device (100) to the printing stage (301); The printing stage (301) is provided with a first clearance groove (301a) for the support unit (201c) to move along the height direction and a second clearance groove (301b) for the support unit (201c) to move along the second direction on both sides along the first direction. The first clearance groove (301a) and the second clearance groove (301b) are connected.

12. The screen printing equipment according to claim 11, characterized in that: The feeding device (100) includes several separately arranged second transmission components (102b). Each second transmission component (102b) includes a support frame (102b-1) and transmission belts (102b-2) located on both sides of the support frame (102b-1) perpendicular to the direction of cell transmission. The distance between the two transmission belts (102b-2) is less than the distance between the support components (201c-1) on the two second connecting frames (201b).

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