Solar cell screen printing machine

Abstract

The utility model relates to the field of solar cells, in particular to a solar cell screen printing machine. Comprising a machine table, a supporting table is fixedly connected to the upper surface of the machine table, an adjusting structure is arranged on the bottom side of the inner wall of the supporting table and comprises an electric push rod, the electric push rod is fixedly connected with the supporting table, a lifting plate is fixedly connected to the output end of the electric push rod, and two adjusting grooves are formed in the surface of the lifting plate; the inner walls of the two adjusting grooves are rotationally connected with adjusting rods, the arc surfaces of the adjusting rods are in threaded connection with moving blocks, and the moving blocks are in sliding connection with the inner walls of the adjusting grooves. According to the solar cell screen printing machine, the two limiting rods and the positioning frame are used for limiting the solar cell screen printing machine, the accuracy of the printing position is improved, and the limiting rods and the positioning frame can be stored in the supporting table when the printing device runs; and the positions of the limiting rod and the positioning frame can be adjusted so as to be suitable for solar cells with various sizes.

Description

Technical Field

[0001] The utility model relates to the field of solar cells, in particular to a screen printing machine for solar cells. Background Art

[0002] A solar cell is a thin optoelectronic semiconductor sheet that directly generates electricity using sunlight. In the production process of solar cells, a screen printing technique is used to imprint a conductive paste containing metal on a silicon wafer to form a circuit or electrode, thereby completing the formation of the battery's electrodes.

[0003] In the prior art, when using a screen printing machine to process solar cells, the conductive paste is loaded into the screen printing device, and the solar cell wafers to be processed are placed on the support table. The printing device is started through the operation interface. The printing device moves downward and imprints the conductive paste on the silicon wafer. However, the following problems will occur in this operation. The user manually places the battery wafers directly on the support table, and the accuracy and efficiency of manually adjusting the position of the battery wafers are low, which easily leads to low printing quality. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages of low efficiency and low accuracy in manually adjusting the position of solar cell wafers in the prior art.

[0005] To solve the above technical problems, the utility model provides a screen printing machine for solar cells, including: a machine table, the surface of the machine table is provided with an operation interface, the upper surface of the machine table is equipped with a printing device, the upper surface of the machine table is fixedly connected with a support table, the bottom side of the inner wall of the support table is provided with an adjustment structure, the adjustment structure includes an electric push rod, the electric push rod is fixedly connected with the support table, the output end of the electric push rod is fixedly connected with a lifting plate, two adjustment grooves are opened on the surface of the lifting plate, the inner walls of the two adjustment grooves are rotatably connected with adjustment rods, the arc surface of the adjustment rod is threadedly connected with a moving block, the moving block is slidably connected with the inner wall of the adjustment groove, the upper surface of the moving block is fixedly connected with a limiting rod, a positioning groove is opened on the surface of the lifting plate, the inner wall of the positioning groove is rotatably connected with a positioning rod, the arc surface of the positioning rod is threadedly connected with a positioning frame, the positioning frame is slidably connected with the inner wall of the positioning groove, and a plurality of through grooves are opened on the upper surface of the support table corresponding to the positions of the adjustment grooves and the positioning grooves.

[0006] The effects achieved by the above components are as follows: When placing the solar cells to be processed on the support table, they are limited by the two limiting rods and the positioning frame, improving the accuracy of the printing position. The limiting rods and the positioning frame can be retracted into the support table when the printing device is operating, and the positions of the limiting rods and the positioning frame can be adjusted to be suitable for solar cells of various sizes.

[0007] Preferably, a circular tube is rotatably connected to the arc surface of the limiting rod.

[0008] The effect achieved by the above components is that the friction between the solar cell and the limiting rod is reduced by the circular tube.

[0009] Preferably, a sliding rod is fixedly connected to the inner wall of the adjusting groove, and the arc surface of the sliding rod is slidably connected to the moving block.

[0010] The effect achieved by the above components is that the moving block is further limited by the sliding rod, making the moving block move more stably along the adjusting groove.

[0011] Preferably, a plurality of pulleys are rotatably connected to both sides of the positioning frame, and the arc surface of the pulley is slidably connected to the positioning groove.

[0012] The effect achieved by the above components is that the friction between the positioning frame and the positioning groove is reduced by the pulley, making the positioning frame move more smoothly along the positioning groove.

[0013] Preferably, a scale is provided on the upper surface of the support table corresponding to the positions of a plurality of through grooves.

[0014] The effect achieved by the above components is that the moving distances of the limiting rod and the positioning frame can be visually judged with reference to the scale, improving the efficiency of position adjustment.

[0015] Preferably, an auxiliary structure is provided on the upper surface of the support table. The auxiliary structure includes a mounting groove opened on the support table. A support disk is slidably connected to the inner wall of the mounting groove. A soft pad is fixedly connected to the upper surface of the support disk. The soft pad is a silica gel pad. A plurality of anti-slip lines are opened on the upper surface of the soft pad. A handle rod is fixedly connected to the arc surface of the support disk, and the surface of the handle rod is slidably connected to the mounting groove.

[0016] The effect achieved by the above components is that the support disk and the handle rod are pre-mounted on the support table. After printing is completed, the solar cell is lifted upward by the support disk, facilitating the user to remove the cell from the support table.

[0017] Preferably, an anti-slip sleeve is fixedly connected to the surface of the handle rod, and the anti-slip sleeve is a rubber sleeve.

[0018] The effect achieved by the above components is that the friction on the surface of the handle rod is increased by the anti-slip sleeve, facilitating the user to operate the handle rod.

[0019] Compared with the related art, a solar cell screen printing machine provided by the present utility model has the following beneficial effects:

[0020] The utility model provides a screen printing machine for solar cells. When using the screen printing machine to process solar cells, conductive paste is loaded into the screen printing device, and the solar cell wafers to be processed are placed on the support table. The printing device is started through the operation interface. The printing device moves downward and presses the conductive paste on the silicon wafer. However, the following problems will occur in this operation. The user manually places the battery wafers directly on the support table, and the accuracy and efficiency of manually adjusting the position of the battery wafers are low, which easily leads to low printing quality. By setting an adjustment structure, when placing the solar cells to be processed on the support table, two limit rods and a positioning frame are used to limit it, improving the accuracy of the printing position. The limit rods and the positioning frame can be retracted into the support table when the printing device is running, and the positions of the limit rods and the positioning frame can be adjusted to be applicable to solar cells of various sizes.

[0021] After processing, since the solar cells are attached to the support table, it is not convenient to remove them. By setting an auxiliary structure, the support disk and the handle rod are pre-installed on the support table. After printing, the support disk is used to lift the solar cell wafers upward, facilitating the user to remove the battery wafers from the support table. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a screen printing machine for solar cells provided by the utility model;

[0023] Figure 2 is Figure 1 a schematic structural diagram of the adjustment structure shown in;

[0024] Figure 3 is Figure 2 a partial structural diagram of the adjustment structure shown in;

[0025] Figure 4 is Figure 2 a partial structural diagram of the adjustment structure shown in;

[0026] Figure 5 is Figure 1 a schematic structural diagram of the auxiliary structure shown in.

[0027] Reference numerals in the drawings: 1, machine table; 2, operation interface; 3, printing device; 4, support table; 5, adjustment structure; 501, electric push rod; 502, lifting plate; 503, adjustment groove; 504, adjustment rod; 505, moving block; 506, limit rod; 507, round tube; 508, sliding rod; 509, positioning groove; 510, positioning rod; 511, positioning frame; 512, pulley; 513, scale; 6, auxiliary structure; 61, installation groove; 62, support disk; 63, soft pad; 64, anti-slip pattern; 65, handle rod; 66, anti-slip sleeve. Detailed Description of the Embodiment

[0028] In order to make the objectives, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0030] Please refer to Figures 1 to 5 , a screen printing machine for solar cells provided by an embodiment of the present utility model includes: a machine table 1, an operation interface 2 is arranged on the surface of the machine table 1, a printing device 3 is installed on the upper surface of the machine table 1, a support table 4 is fixedly connected to the upper surface of the machine table 1, an adjustment structure 5 is arranged on the bottom side of the inner wall of the support table 4, and an auxiliary structure 6 is arranged on the upper surface of the support table 4.

[0031] In an embodiment of the present utility model, please refer to Figures 2 to 4, the adjusting structure 5 includes an electric push rod 501. The electric push rod 501 is fixedly connected to the support table 4. The output end of the electric push rod 501 is fixedly connected with a lifting plate 502. Two adjusting grooves 503 are formed on the surface of the lifting plate 502. The inner walls of the two adjusting grooves 503 are rotatably connected with adjusting rods 504. A moving block 505 is threadedly connected to the arc surface of the adjusting rod 504. The moving block 505 is slidably connected to the inner wall of the adjusting groove 503. A limiting rod 506 is fixedly connected to the upper surface of the moving block 505. A positioning groove 509 is formed on the surface of the lifting plate 502. A positioning rod 510 is rotatably connected to the inner wall of the positioning groove 509. A positioning frame 511 is threadedly connected to the arc surface of the positioning rod 510. The positioning frame 511 is slidably connected to the inner wall of the positioning groove 509. A plurality of through grooves are formed on the upper surface of the support table 4 corresponding to the positions of the adjusting grooves 503 and the positioning groove 509. When placing the solar cell to be processed on the support table 4, it is limited by the two limiting rods 506 and the positioning frame 511 to improve the accuracy of the printing position. The limiting rods 506 and the positioning frame 511 can be retracted into the support table 4 when the printing device 3 is running. The positions of the limiting rods 506 and the positioning frame 511 can be adjusted to be applicable to solar cells of various sizes. A circular tube 507 is rotatably connected to the arc surface of the limiting rod 506. The friction between the solar cell and the limiting rod 506 is reduced through the circular tube 507. A sliding rod 508 is fixedly connected to the inner wall of the adjusting groove 503. The arc surface of the sliding rod 508 is slidably connected to the moving block 505. The moving block 505 is further limited through the sliding rod 508 to make the moving block 505 move more stably along the adjusting groove 503. A plurality of pulleys 512 are rotatably connected to both sides of the positioning frame 511. The arc surface of the pulley 512 is slidably connected to the positioning groove 509. The friction between the positioning frame 511 and the positioning groove 509 is reduced through the pulley 512 to make the positioning frame 511 move more smoothly along the positioning groove 509. A scale 513 is provided on the upper surface of the support table 4 corresponding to the positions of the plurality of through grooves. Referring to the scale 513, the moving distance of the limiting rods 506 and the positioning frame 511 can be intuitively judged, and the efficiency of position adjustment is improved;

[0032] In an embodiment of the present invention, please refer to Figure 5, the auxiliary structure 6 includes an installation groove 61 which is opened on the support platform 4. The inner wall of the installation groove 61 is slidably connected with a support disc 62. The upper surface of the support disc 62 is fixedly connected with a soft pad 63. The soft pad 63 is a silica gel pad. A plurality of anti-slip lines 64 are opened on the upper surface of the soft pad 63. The arc surface of the support disc 62 is fixedly connected with a handle rod 65. The surface of the handle rod 65 is slidably connected with the installation groove 61. The support disc 62 and the handle rod 65 are pre-installed on the support platform 4. After printing is completed, the solar cell is lifted upward by the support disc 62, which facilitates the user to remove the cell from the support platform 4. The surface of the handle rod 65 is fixedly connected with an anti-slip sleeve 66. The anti-slip sleeve 66 is a rubber sleeve. The friction on the surface of the handle rod 65 is increased through the anti-slip sleeve 66, which facilitates the user to operate the handle rod 65;

[0033] The working principle of a solar cell screen printing machine provided by the present utility model is as follows: By setting the adjustment structure 5, first confirm the length and width dimensions of the battery cell to be processed. Rotate the two adjustment rods 504 on both sides of the lifting plate 502. The adjustment rods 504 drive the moving block 505 to move along the adjustment groove 503 by means of threads. The moving block 505 drives the limiting rod 506 to move until the distance between the two limiting rods 506 fits the length of the solar cell. Rotate the positioning rod 510. The positioning rod 510 drives the positioning frame 511 to move along the positioning groove 509 to a suitable position by means of threads. Slide the solar cell to be processed between the two limiting rods 506. Continue to move the solar cell so that one side of the solar cell abuts against the positioning frame 511, and lower the solar cell onto the support platform 4. At this time, the solar cell is placed in the center of the support platform 4. Start the electric push rod 501. The output end of the electric push rod 501 contracts. The electric push rod 501 drives the lifting plate 502 to move downward, so that the positioning frame 511 and the limiting rod 506 move downward along the through hole into the support platform 4. Then start the printing device 3 for processing. When performing the next operation, the electric push rod 501 drives the lifting plate 502 to move upward. Among them, the friction between the solar cell and the limiting rod 506 is reduced through the round tube 507. The moving block 505 is further limited by the sliding rod 508, so that the moving block 505 moves more stably along the adjustment groove 503. The friction between the positioning frame 511 and the positioning groove 509 is reduced through the pulley 512, so that the positioning frame 511 moves more smoothly along the positioning groove 509. The reference scale 513 can visually judge the moving distance of the limiting rod 506 and the positioning frame 511, improving the efficiency of position adjustment. When placing the solar cell to be processed on the support platform 4, the limiting rod 506 and the positioning frame 511 are used to limit it, improving the printing position accuracy. The limiting rod 506 and the positioning frame 511 can be retracted into the support platform 4 when the printing device 3 is running, and the positions of the limiting rod 506 and the positioning frame 511 can be adjusted to be applicable to solar cells of various sizes.

[0034] After processing, since the solar cell is attached to the support table 4 and is not convenient to remove, by providing the auxiliary structure 6, the handle 65 is lifted upward, and the handle 65 drives the support disk 62 to move upward. At this time, both the handle 65 and the support disk 62 slide out of the installation groove 61. The support disk 62 supports the solar cell upward through the soft pad 63. The anti-slip pattern 64 on the soft pad 63 can increase the friction of the soft pad 63 to prevent the solar cell from sliding. Among them, the friction of the surface of the handle 65 is increased through the anti-slip sleeve 66, which is convenient for the user to operate the handle 65. It is realized that the support disk 62 and the handle 65 are pre-installed on the support table 4. After printing, the support disk 62 is used to support the solar cell upward, which is convenient for the user to remove the cell from the support table 4.

[0035] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0036] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A solar cell screen printer, characterized in that: include: A machine platform (1), wherein an operation interface (2) is arranged on the surface of the machine platform (1), a printing device (3) is installed on the upper surface of the machine platform (1), the upper surface of the machine platform (1) is fixedly connected to a support platform (4), an adjustment structure (5) is arranged on the bottom side of the inner wall of the support platform (4), the adjustment structure (5) comprises an electric push rod (501), the electric push rod (501) is fixedly connected to the support platform (4), the output end of the electric push rod (501) is fixedly connected to a lifting plate (502), the surface of the lifting plate (502) is provided with two adjustment grooves (503), the inner walls of the two adjustment grooves (503) are both rotatably connected to adjustment rods (504), the adjustment rods (504) The arc surface of the lifting plate (502) is threadedly connected with a moving block (505), the moving block (505) is slidably connected to the inner wall of the adjusting groove (503), the upper surface of the moving block (505) is fixedly connected with a limiting rod (506), the surface of the lifting plate (502) is provided with a positioning groove (509), the inner wall of the positioning groove (509) is rotatably connected with a positioning rod (510), the arc surface of the positioning rod (510) is threadedly connected with a positioning frame (511), the positioning frame (511) is slidably connected to the inner wall of the positioning groove (509), and the upper surface of the support platform (4) is provided with a plurality of through grooves at positions corresponding to the adjusting groove (503) and the positioning groove (509).

2. A solar cell screen printer according to claim 1, characterized in that: The arc surface of the limiting rod (506) is rotatably connected to a circular tube (507).

3. A solar cell screen printer according to claim 1, characterized in that: A sliding rod (508) is fixedly connected to the inner wall of the adjustment groove (503), and the arc surface of the sliding rod (508) is slidably connected to the moving block (505).

4. The solar cell screen printer according to claim 1, characterized in that: A plurality of pulleys (512) are rotatably connected to both sides of the positioning frame (511), and arc surfaces of the pulleys (512) are slidably connected to the positioning grooves (509).

5. The solar cell screen printer according to claim 1, characterized in that: Scales (513) are provided on the upper surface of the support platform (4) at positions corresponding to the plurality of through slots.

6. The solar cell screen printer according to claim 1, characterized in that: The upper surface of the support platform (4) is provided with an auxiliary structure (6), the auxiliary structure (6) comprises a mounting groove (61), the mounting groove (61) is provided on the support platform (4), the inner wall of the mounting groove (61) is slidably connected with a support plate (62), the upper surface of the support plate (62) is fixedly connected with a soft pad (63), the soft pad (63) is a silicone pad, the upper surface of the soft pad (63) is provided with a plurality of anti-slip grooves (64), the arc surface of the support plate (62) is fixedly connected with a handlebar (65), the surface of the handlebar (65) is slidably connected with the mounting groove (61).

7. A solar cell screen printer according to claim 6, characterized in that: The surface of the handlebar (65) is fixedly connected with an anti-slip sleeve (66), and the anti-slip sleeve (66) is a rubber sleeve.

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