Ink-jet printing equipment

Abstract

The utility model discloses ink-jet printing equipment, comprising a transmission assembly which is provided with a transmission motor and a synchronizing wheel connected with the transmission motor; the transmission motor is connected with the synchronous wheel through a synchronous belt; the transmission assemblies are symmetrically arranged and used for driving the battery pieces to be conveyed in one direction in a multi-station mode. A plurality of guide pieces are connected to the guide belt; the guide belt is used for adjusting the distance between the guide pieces to rectify the width direction of the battery piece; the adsorption assembly is arranged at the tail end of the compensation assembly, the adsorption assembly is provided with an adsorption tank and a vacuum pump arranged in the adsorption tank, and the vacuum pump is used for generating negative pressure in the adsorption tank; the ink jet assembly is arranged at the tail end of the adsorption assembly and is used for carrying out ink jet operation on the battery pieces on the adsorption assembly; and the compatibility and adaptability of the equipment to materials of different specifications are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ink-jet printing field, and especially a kind of ink-jet printing equipment. BACKGROUND

[0002] With the rapid development of photovoltaic industry, the manufacturing process of solar cell is continuously improved, and the ink-jet printing technology as an accurate and efficient cell preparation method has been widely used in the field of solar cell manufacturing. The ink-jet printing technology is mainly applied to the grid line preparation and mask pattern making of solar cell, which is of great significance to improve the photoelectric conversion efficiency of the cell.

[0003] At present, the common photovoltaic ink-jet printing equipment on the market usually includes two parts of a conveying assembly and an ink-jet assembly. For example, the Chinese patent document with publication number CN118769729A discloses an ink-jet printing equipment, which includes a conveying assembly and an ink-jet assembly. The conveying assembly includes a first driving mechanism and a support table supporting the target object. The support table reciprocates under the drive of the first driving mechanism to make the target object reciprocate. The ink-jet assembly is arranged above the conveying assembly to perform ink-jet printing on the target object. Although this simple structure design can realize the basic ink-jet printing function, it has limitations in multi-station synchronous processing.

[0004] In terms of cell transmission, there are also schemes using ring transmission structure in the prior art. For example, the Chinese patent document with publication number CN105226136B discloses a ring-shaped ink-jet printing system for preparing solar cell fine grids, which includes an ink-jet head mechanism, a ring-shaped motion mechanism and a carrier mechanism. The carrier mechanism is arranged in multiple groups and uniformly installed on the ring-shaped guide rail. The driving element can drive the carrier mechanism to move along the ring-shaped guide rail. Although this ring-shaped structure improves the production efficiency, it still has deficiencies in the accurate control of the cell position.

[0005] Therefore, it is necessary to improve the ink-jet printing equipment in the prior art to solve the above problems. SUMMARY

[0006] The utility model overcomes the deficiencies of the prior art and provides an ink-jet printing equipment to solve the problems in the prior art.

[0007] To achieve the above purpose, the utility model adopts the technical scheme of an ink-jet printing equipment, which includes:

[0008] The conveying assembly is symmetrically arranged to drive the cell to be conveyed in one direction.

[0009] The compensation assembly is arranged at the end of the transmission assembly, and is used for receiving the battery piece on the transmission assembly and compensating the transmission speed of the battery piece on the multi-station to ensure that the distances of the battery pieces on the multi-station are equal.

[0010] The guiding assembly is provided with a plurality of guiding motors and a guiding belt connected with the guiding motors; a plurality of guiding pieces are connected with the guiding belt; and the guiding belt is used for adjusting the distance between the guiding pieces to correct the deviation of the battery piece in the width direction.

[0011] The suction assembly is arranged at the end of the compensation assembly, and is provided with a suction groove and a vacuum pump arranged in the suction groove; the vacuum pump is used for generating negative pressure in the suction groove.

[0012] The ink jet assembly is arranged at the end of the suction assembly, and is used for performing ink jet operation on the battery piece on the suction assembly.

[0013] In a preferred embodiment of the utility model, the compensation assembly has the same structure as the transmission assembly.

[0014] In a preferred embodiment of the utility model, the suction assembly is further provided with a suction motor and a suction wheel connected with the suction motor; and the suction wheel is connected with the suction electrode through a suction belt.

[0015] In a preferred embodiment of the utility model, the suction wheel has the same structure as the synchronous wheel, the suction belt has a similar structure to the synchronous belt, and a suction hole is formed in the suction belt.

[0016] In a preferred embodiment of the utility model, the suction groove is arranged on the inner side of the circumference of the suction belt, and the opening of the suction groove is attached to the suction belt to suck the battery piece through the suction hole.

[0017] In a preferred embodiment of the utility model, the guiding piece comprises a guiding frame and a guiding shaft arranged on the guiding frame; and a clamping plate is arranged at the bottom of the guiding frame and is clamped on the guiding belt.

[0018] In a preferred embodiment of the utility model, the guiding belt has the same structure as the synchronous belt, and the guiding frame is arranged on both sides of the suction groove.

[0019] In a preferred embodiment of the utility model, the ink jet assembly comprises a gantry and a lifting piece arranged on the gantry; and the ink jet piece is arranged on the lifting piece.

[0020] In a preferred embodiment of the utility model, the lifting piece comprises a frame and a cylinder arranged on the frame; and the ink jet piece is slidably connected with the cylinder.

[0021] The utility model solves the defects in the background art, and has the following beneficial effects:

[0022] (1) The utility model provides a kind of inkjet printing equipment, by subarea independent control's negative pressure adsorption technology, in combination with flexible high air-tightness adsorption band and dynamic speed regulation driving system, the stable adsorption fixing of different specifications battery piece is realized.A partition negative pressure design is used in adsorption groove, and adsorption force distribution can be dynamically adjusted according to battery piece size, cooperate with the microporous adsorption band of surface uniform distribution, while ensuring air-tightness, avoid local stress concentration.Adsorption driving system is matched with the transmission speed change of production line by stepless speed regulation technology.The technology solves the problem of unstable fixation and surface damage caused by the thickness or size difference of battery piece in traditional adsorption mode, improves the compatibility and adaptability of equipment to different specifications materials.

[0023] (2) The utility model provides a kind of inkjet printing equipment, based on the deviation rectifying mechanism of two-way dynamic adjustment guide tape spacing, in combination with low friction guide shaft and rigid connection structure, the accurate positioning of battery piece in conveying process is realized.Guide component is adjusted the spacing of two sides guide tape synchronously, and the width direction of battery piece is actively rectified in two directions, while adopting polishing guide shaft and lightweight guide frame to reduce contact friction, avoid surface scratch.Rigid clamping design of clamping plate and guide tape ensures the stability and reliability of rectification action.The technology effectively solves the positioning deviation problem caused by mechanical vibration or inertia deviation of battery piece in high-speed transmission, guarantees the accurate alignment requirement of subsequent process. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model is further described below in connection with the drawings and examples;

[0025] Figure 1 It is the three-dimensional structure diagram of preferred embodiment of the utility model;

[0026] Figure 2 It is the adsorption component structure schematic view of preferred embodiment of the utility model;

[0027] Figure 3 It is the guide component structure schematic view of preferred embodiment of the utility model;

[0028] In the drawing: 1, transmission component;10, transmission motor;11, synchronous wheel;12, synchronous belt;2, compensation component;3, guide component;30, guide frame;31, guide shaft;32, clamping plate;33, guide motor;34, guide belt;4, adsorption component;40, adsorption motor;41, adsorption wheel;42, adsorption belt;43, adsorption hole;44, adsorption groove;5, inkjet component;50, gantry;51, frame;52, inkjet part. DETAILED DESCRIPTION

[0029] The utility model will be further described in connection with the drawings and embodiments, these drawings are all simplified schematic diagram, only with the schematic way the basic structure of the utility model is shown, therefore it only shows the related structure of the utility model.

[0030] As shown in the figure, an inkjet printing device comprises:

[0031] The transmission assembly has a transmission motor and a synchronous wheel connected with the transmission motor; the transmission motor and the synchronous wheel are connected through a synchronous belt; the transmission assembly is symmetrically arranged to drive the battery pieces in multiple stations to be conveyed in one direction;

[0032] It should be noted that the transmission assembly has a transmission motor and a synchronous wheel connected with the transmission motor. The transmission motor and the synchronous wheel are connected through a synchronous belt. The transmission assembly is symmetrically arranged to drive the battery pieces in multiple stations to be conveyed in one direction. Specifically, the transmission assembly comprises two groups of symmetrically arranged transmission units, each group of transmission units comprising a transmission motor, a synchronous wheel and a synchronous belt. The two groups of transmission units are respectively located on the two sides of the battery piece conveying path, and are used to simultaneously drive the battery pieces on multiple stations to be conveyed forward. The transmission motor adopts a stepping motor, which can accurately control the rotation angle of the synchronous wheel, thereby controlling the movement distance of the synchronous belt. The synchronous wheel adopts a toothed wheel structure, and the synchronous belt is provided with a tooth groove matched with the tooth shape of the synchronous wheel, so that the slipping phenomenon in the transmission process is avoided. The two groups of transmission units of the transmission assembly are controlled through the same control system, so that the movement speed and distance of the two groups of transmission units are kept consistent, and the deviation of the battery pieces in the transmission process is avoided.

[0033] The compensation assembly is arranged at the end of the transmission assembly, and is used to receive the battery pieces on the transmission assembly and compensate the transmission speed of the battery pieces in multiple stations to ensure that the distances of the battery pieces in multiple stations are equal. The compensation assembly has the same structure as the transmission assembly.

[0034] It should be noted that the compensation assembly is arranged at the end of the transmission assembly, the compensation assembly is used for receiving the battery piece on the transmission assembly, and the transmission speed of the battery piece on the multiple stations is compensated to ensure that the distances of the battery pieces on the multiple stations are equal. The compensation assembly has the same structure as the transmission assembly and also comprises two groups of symmetrically arranged compensation units, each group of compensation units comprises a compensation motor, a compensation synchronous wheel and a compensation synchronous belt. The main function of the compensation assembly is to receive the battery piece from the transmission assembly and accurately adjust the transmission speed of the battery piece, so as to ensure that the distances between the battery pieces on the multiple stations are equal. The compensation motor is a servo motor and has higher precision control capability, can adjust the running speed of the compensation synchronous belt in real time according to the position information of the battery piece fed back by the sensor. The compensation synchronous wheel has the same structure as the synchronous wheel in the transmission assembly, but has a smaller diameter, so as to more accurately control the movement of the battery piece. A plurality of micro positioning marks are arranged on the compensation synchronous belt and are used for monitoring the movement state of the compensation synchronous belt in real time.

[0035] The guiding assembly comprises a plurality of guiding motors and a guiding belt connected with the guiding motors; a plurality of guiding members are connected with the guiding belt; and the guiding belt is used for adjusting the distance between the guiding members to correct the deviation of the battery piece in the width direction.

[0036] In the utility model, the guiding member comprises a guiding frame and a guiding shaft arranged on the guiding frame; the bottom of the guiding frame is provided with a clamping plate which is clamped on the guiding belt; the guiding belt has the same structure as the synchronous belt, and the guiding frame is arranged on both sides of the adsorption groove.

[0037] It should be noted that the guiding assembly has a plurality of guiding motors, and a guiding belt connected with the guiding motors. A plurality of guiding members are connected with the guiding belt. The guiding belt is used to adjust the distance between the guiding members to correct the deviation of the battery piece in the width direction. The guiding member is arranged at the bottom of the battery piece conveying path, and is in a semi-enclosed state around the two sides of the battery piece, and is used to correct the deviation of the battery piece in the width direction, so as to ensure that the battery piece maintains the correct position and direction during conveying. The guiding motor adopts a precision stepping motor, which can control the movement of the guiding belt, so as to adjust the distance between the guiding members. The guiding belt structure is the same as the synchronous belt structure, and has good wear resistance and stability. The guiding member comprises a guiding frame and a guiding shaft arranged on the guiding frame. The bottom of the guiding frame is provided with a clamping plate which is clamped with the guiding belt. The guiding frame is made of light and high-strength aluminum alloy material, which is light in weight and high in strength. The guiding shaft is made of stainless steel material, and the surface is polished to reduce the friction when contacting the battery piece. The clamping plate is tightly connected with the guiding belt through the clamping groove, so that the guiding member will not be loose during the movement of the guiding belt. The guiding frame is arranged on both sides of the adsorption groove, and can correct the battery piece in two directions. When working, a large frame is arranged at the bottom of the adsorption groove, and the guiding motor is fixedly connected with the large frame. One guiding motor is arranged on each side of the adsorption groove, and the guiding motors are connected through the guiding belt. The guiding frame is slidably connected with the large frame, and can slide perpendicular to the direction of the adsorption groove. The guiding frame is also arranged on each side of the adsorption groove, and the guiding frames on both sides of the same adsorption groove are clamped on the upper and lower sides of the guiding belt through the clamping plates. The guiding shaft is rotatably connected with the guiding frame, and the guiding shaft is rotated by the guiding motor to drive the guiding belt to move, and then the clamping plate drives the guiding frame to move in the direction perpendicular to the adsorption groove, so as to calibrate the position of the battery piece through the guiding shaft.

[0038] The adsorption assembly is arranged at the end of the compensation assembly, and the adsorption assembly comprises an adsorption groove and a vacuum pump arranged in the adsorption groove. The vacuum pump is used to generate negative pressure in the adsorption groove.

[0039] In the utility model, the adsorption assembly further has an adsorption motor and an adsorption wheel connected with the adsorption motor. The adsorption wheel and the adsorption electrode are connected through an adsorption belt. The adsorption wheel has the same structure as the synchronous wheel, and the adsorption belt has a structure similar to the synchronous belt. The adsorption belt is provided with adsorption holes. The adsorption groove is arranged on the inner side of the circumference of the adsorption belt, and the opening of the adsorption groove is attached to the adsorption belt for adsorbing the battery piece through the adsorption holes.

[0040] The adsorption assembly is arranged at the end of the compensation assembly, and has an adsorption groove and a vacuum pump arranged in the adsorption groove, and the vacuum pump is used for generating negative pressure in the adsorption groove. The adsorption assembly further has an adsorption motor and an adsorption wheel connected with the adsorption motor. The adsorption wheel is connected with the adsorption electrode through an adsorption belt. The adsorption wheel has the same structure as the synchronous wheel, the adsorption belt has a similar structure to the synchronous belt, and the adsorption belt is provided with adsorption holes. The adsorption groove is arranged at the inner side of the circumference of the adsorption belt, and the opening of the adsorption groove is attached to the adsorption belt for adsorbing the battery piece through the adsorption holes. The main function of the adsorption assembly is to fix the battery piece through negative pressure adsorption to ensure that the battery piece remains stable during the inkjet process. The adsorption motor is a variable frequency motor, which can adjust the running speed of the adsorption belt according to the requirements of battery pieces of different specifications. The adsorption wheel is made of the same material and structure as the synchronous wheel to ensure the stability of transmission. The adsorption belt is made of special rubber material and has good flexibility and air tightness. The adsorption belt is uniformly provided with adsorption holes with a diameter of 0.5 mm, which correspond to the negative pressure area in the adsorption groove to form an effective adsorption area. The adsorption groove is made of aluminum alloy material and is provided with multiple partitions in the inside to form independent negative pressure areas, which can provide different adsorption forces for battery pieces at different positions. The vacuum pump is an oil-free rotary vane vacuum pump, which can provide a stable negative pressure environment.

[0041] The inkjet assembly is arranged at the end of the adsorption assembly and is used for inkjet operation on the battery piece on the adsorption assembly.

[0042] In the utility model, the inkjet assembly includes a portal frame and a lifting piece arranged on the portal frame, and an inkjet piece is arranged on the lifting piece. The lifting piece includes a frame and an electric cylinder arranged on the frame, and the inkjet piece is in sliding connection with the electric cylinder.

[0043] The inkjet assembly is arranged at the end of the adsorption assembly and is used for inkjet operation on the battery piece on the adsorption assembly. The inkjet assembly includes a portal frame and a lifting piece arranged on the portal frame, and an inkjet piece is arranged on the lifting piece. The lifting piece includes a frame and an electric cylinder arranged on the frame and a servo motor. The inkjet piece is in sliding connection with the electric cylinder. The portal frame is made of steel and has sufficient rigidity and stability, can bear the weight of the inkjet system and keep accurate positioning. The portal frame spans the entire adsorption assembly to form a stable working platform. The frame of the lifting piece is made of lightweight high-strength carbon fiber material, which reduces the overall weight while ensuring the structural strength. The electric cylinder is a double-acting electric cylinder, which can accurately control the lifting height of the inkjet piece. The inkjet piece is connected with the piston rod of the electric cylinder through a sliding block, and the sliding block moves on the guide rail to ensure the vertical movement accuracy of the inkjet piece. The inkjet piece includes an inkjet head, an ink supply system and a control unit. The ink supply system includes an ink tank, an ink supply pipeline and a pressure adjusting device to ensure the stability of the ink supply. The control unit is responsible for receiving pattern data and controlling the work of the inkjet head to realize accurate pattern printing.

[0044] In the working process of the utility model, the battery piece is firstly conveyed by the transmission assembly, the two groups of transmission units of the transmission assembly synchronously operate, the battery pieces on the multiple stations are conveyed forward. When the battery piece reaches the end of the transmission assembly, it is taken by the compensation assembly, the compensation assembly adjusts the transmission speed of the battery piece, ensures that the battery pieces on the multiple stations keep equal spacing. In the battery piece conveying process, the guide assembly adjusts the spacing of the guide pieces, corrects the battery piece in the width direction, ensures that the battery piece keeps correct position and direction. After the battery piece passes through the compensation assembly, it enters the adsorption assembly, the adsorption assembly firmly adsorbs the battery piece on the adsorption belt through the adsorption hole on the adsorption belt and the negative pressure in the adsorption groove. Finally, the inkjet assembly sprays ink on the battery piece adsorbed on the adsorption belt, completes the pattern printing of the battery piece.

[0045] The inkjet printing equipment of the utility model realizes accurate conveying, positioning, adsorption and inkjet of the battery piece through the cooperative work of the transmission assembly, the compensation assembly, the guide assembly, the adsorption assembly and the inkjet assembly, improves the precision and efficiency of the battery piece inkjet printing. Especially the setting of the compensation assembly solves the problem of unequal spacing caused by inconsistent transmission speed of the multiple-station battery piece, ensures the quality and consistency of the inkjet printing.

[0046] According to the ideal embodiment of the utility model, the related personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. An inkjet printing apparatus characterized by comprising: The application relates to a battery piece conveying device, which comprises the following components: a conveying assembly (1) provided with a conveying motor (10) and a synchronous wheel (11) connected with the conveying motor (10); the conveying motor (10) is connected with the synchronous wheel (11) through a synchronous belt (12); the conveying assembly (1) is symmetrically arranged for driving battery pieces in multiple stations to convey the battery pieces in one direction; a compensation assembly (2) arranged at the end of the conveying assembly (1); the compensation assembly (2) is used for receiving the battery pieces on the conveying assembly (1) and compensating the conveying speed of the battery pieces in multiple stations to ensure that the distances of the battery pieces in multiple stations are equal; a guiding assembly (3) provided with a plurality of guiding motors (33) and a guiding belt (34) connected with the guiding motors (33); the guiding belt (34) is connected with a plurality of guiding members; the guiding belt (34) is used for adjusting the distance between the guiding members to correct the deviation of the battery pieces in the width direction; an adsorption assembly (4) arranged at the end of the compensation assembly (2); the adsorption assembly (4) is provided with an adsorption groove (44) and a vacuum pump arranged in the adsorption groove (44); the vacuum pump is used for generating negative pressure in the adsorption groove (44); and an ink jet assembly (5) arranged at the end of the adsorption assembly (4) and used for performing ink jet operation on the battery pieces on the adsorption assembly (4). The compensation assembly (2) has the same structure as the conveying assembly (1). The adsorption assembly (4) is further provided with an adsorption motor (40) and an adsorption wheel (41) connected with the adsorption motor (40); the adsorption wheel (41) is connected with the adsorption motor through an adsorption belt (42). The adsorption wheel (41) has the same structure as the synchronous wheel (11); the adsorption belt (42) has a structure similar to that of the synchronous belt (12); and the adsorption belt (42) is provided with adsorption holes (43). The adsorption groove (44) is arranged on the inner side of the circumference of the adsorption belt (42); the opening of the adsorption groove (44) is attached to the adsorption belt (42) and used for adsorbing the battery pieces through the adsorption holes (43). The guiding member comprises a guiding frame (30) and a guiding shaft (31) arranged on the guiding frame (30); the bottom of the guiding frame (30) is provided with a clamping plate (32) which is clamped to the guiding belt (34). The guiding belt (34) has the same structure as the synchronous belt (12); and the guiding frame (30) is arranged on both sides of the adsorption groove (44).

2. The inkjet printing apparatus according to claim 1, characterized by: The ink jet assembly (5) comprises a gantry (50) and a lifting member arranged on the gantry (50); and the lifting member is provided with an ink jet member (52).

3. The inkjet printing apparatus according to claim 1, characterized by: The lifting member comprises a frame (51) and an electric cylinder arranged on the frame (51); and the ink jet member (52) is slidably connected with the electric cylinder.

4. An inkjet printing apparatus according to claim 3, characterized in that: ​ 5. An inkjet printing apparatus according to claim 4, characterized in that: ​ 6. The inkjet printing apparatus of claim 1, wherein: ​ 7. An inkjet printing apparatus according to claim 6, characterized in that: ​ 8. The inkjet printing apparatus of claim 1, wherein: ​ 9. An inkjet printing apparatus according to claim 8, characterized in that: ​

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