Picture printing workbench and picture printing equipment
By designing a limiting structure and a vacuum adsorption system on the printing worktable, the problem of damage to the surface structure of battery cells in hot melt inkjet printing was solved, achieving high yield and high-quality pattern printing for battery cells.
Patent Information
- Application Number
- CN202422853747.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-21
AI Technical Summary
During the hot melt inkjet printing process, the surface structure of the battery cell is easily damaged, resulting in a high defect rate.
A printing worktable was designed, comprising a base, a support platform, and a limiting structure. The support platform is provided with vacuum pipelines and adsorption holes. The limiting structure has limiting points set on the outer periphery of the support platform. The limiting points can abut against the edge of the battery cell. The limiting part is arc-shaped or a rotating body. By reducing the contact area, adhesion is avoided.
This reduces the defect rate of solar cells, prevents the limiting structure from sticking to the solar cells, and improves the yield rate of solar cells and the quality of pattern lines.
Smart Images
Figure CN223443147U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of patterning, in particular to a printing workbench and printing equipment. BACKGROUND
[0002] In the printing field, especially in the jet printing, hot melt inkjet printing is often used. The hot melt inkjet printing can realize the morphological change of solid ink from solid to molten fluid through heating, and then the molten fluid is sprayed through a nozzle to complete printing. Such a jet printing method can be used in photovoltaic, semiconductor, display manufacturing equipment, such as cell piece printing.
[0003] In the process of hot melt inkjet printing, the high-temperature ink droplets jet-printed on the cell piece are prone to adhere to the limiting mechanism at the edge when solidifying. When the cell piece is taken out, the structure on the cell piece is easily damaged, resulting in a high defective rate of the cell piece. UTILITY MODEL CONTENT
[0004] Therefore, the utility model provides a printing workbench and printing equipment to solve the problem that the surface structure of the cell piece is damaged after hot melt inkjet printing and the defective rate of the cell piece is high in the prior art.
[0005] In a first aspect, the utility model provides a printing workbench, which comprises a base, a bearing table arranged on the base, a bearing surface formed on the side of the bearing table away from the base, a vacuum pipeline formed in the bearing table, an adsorption hole formed in the bearing table corresponding to the bearing surface, the adsorption hole being in communication with the vacuum pipeline, and the vacuum pipeline being adapted to be connected to a negative pressure, and a limiting structure arranged corresponding to the outer edge of the bearing table, the limiting structure having a limiting point formed on the side of the limiting structure facing the bearing table, and the limiting point being adapted to be abuttable with the edge of the cell piece.
[0006] Beneficial effects: the limiting point formed on the limiting structure reduces the contact area between the limiting structure and the cell piece, avoids the adhesion of the high-temperature ink droplets jet-printed on the cell piece to the limiting structure when solidifying, prevents the damage of the surface structure of the cell piece, and reduces the defective rate of the cell piece.
[0007] In an optional embodiment, the limiting structure comprises a support seat and a limiting part, the support seat is arranged on the base corresponding to the outer periphery of the bearing table, the limiting part is connected with the support seat, one end of the limiting part away from the base extends out of the bearing surface, and the limiting point is located on the side of the limiting part facing the bearing table.
[0008] In an optional embodiment, the limiting part has an arc surface structure, the arc surface structure is arranged protruding towards the bearing table, and the limiting point is formed at the point corresponding to the contact position between the arc surface structure and the bearing table.
[0009] Beneficial effect: By setting the limiting part as an arc surface structure, the limiting part is not easy to scratch the battery piece when it is in contact with the battery piece.
[0010] In an alternative embodiment, the limiting part is a rotating body, and the limiting point is formed by a point corresponding to a generatrix of the rotating body at the contact position of the rotating body and the bearing table.
[0011] Beneficial effect: By setting the limiting part as a rotating body, the contact position of the limiting part and the battery piece is a generatrix of the rotating body, reducing the contact area of the limiting part and the battery piece, and avoiding the adhesion of the battery piece and the limiting part.
[0012] In an alternative embodiment, the limiting part is a polyhedron, and the limiting point is formed by a point corresponding to a side edge of the polyhedron at the contact position of the polyhedron and the bearing table.
[0013] Beneficial effect: By setting the limiting part as a polyhedron, the contact position of the limiting part and the battery piece is a side edge of the polyhedron, reducing the contact area of the limiting part and the battery piece, and avoiding the adhesion of the battery piece and the limiting part.
[0014] In an alternative embodiment, the limiting structure is circumferentially spaced along the edge of the bearing table.
[0015] In an alternative embodiment, the bearing table is in a square structure, so that the bearing surface is a square surface.
[0016] In an alternative embodiment, the limiting structure is arranged on at least two side edges of the bearing table.
[0017] Beneficial effect: By arranging the limiting structure on at least two side edges of the bearing table, the battery piece is further limited, avoiding the position deviation of the battery piece during the hot melt inkjet process, and improving the yield of the battery piece.
[0018] In an alternative embodiment, the adsorption hole includes a first adsorption hole and a second adsorption hole, the first adsorption hole is arranged in an array on the bearing table, and the second adsorption hole is arranged at the four corners of the bearing surface.
[0019] Beneficial effect: By arranging the first adsorption hole in an array, the battery piece is adsorbed flat on the bearing table, and by arranging the second adsorption hole at the four corners of the bearing surface, the suction force at the corners of the battery piece is increased, the battery piece is further adsorbed flat on the bearing table, the printing quality of the pattern lines at the corners of the battery piece is improved, and the problem of uneven pattern lines is avoided.
[0020] In a second aspect, the utility model also provides a kind of figure printing equipment, comprising: above-mentioned figure printing workstation. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in prior art, the drawings needed in the embodiment or prior art description will be simply introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor according to these drawings.
[0022] Figure 1 It is the structure diagram of figure printing workstation of the utility model embodiment;
[0023] Figure 2 It is the top view of figure printing workstation of the utility model embodiment;
[0024] Figure 3 It is the structure diagram of figure printing workstation of the utility model embodiment, and the limiting portion is rotator;
[0025] Figure 4 It is the structure diagram of figure printing workstation of the utility model embodiment, and the limiting portion is polyhedron.
[0026] EXPLANATION OF REFERENCE NUMERALS
[0027] 1, base station;2, bearing platform;201, bearing surface;3, suction hole;301, first suction hole;302, second suction hole;4, limiting structure;401, support seat;402, limiting portion;4021, limiting point;4022, rotator;4023, polyhedron. DETAILED DESCRIPTION
[0028] To make the purpose, technical scheme and advantages of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is part of the embodiment of the utility model, not all embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the utility model protection.
[0029] The embodiment of the utility model will be described below in conjunction with Figures 1 to 4 .
[0030] According to the embodiment of the utility model, on the one hand, as Figures 1 to 4As shown, a printing workbench is provided, comprising a base 1, a bearing table 2 and a limiting structure 4. The bearing table 2 is arranged on the base 1, and a bearing surface 201 is formed on the side of the bearing table 2 away from the base 1. A vacuum pipeline is formed in the bearing table 2, and a suction hole 3 is formed in the bearing table 2 corresponding to the bearing surface 201. The suction hole 3 is in communication with the vacuum pipeline, and the vacuum pipeline is adapted to be connected to a negative pressure source. The limiting structure 4 is arranged corresponding to the outer peripheral edge of the bearing table 2, and a limiting point 4021 is formed on the side of the limiting structure 4 facing the bearing table 2. The limiting point 4021 is adapted to be abutted with the edge of the battery piece.
[0031] By forming the limiting point 4021 on the limiting structure 4, the contact area between the limiting structure 4 and the battery piece is reduced, thereby avoiding the adhesion of the high-temperature ink droplets sprayed on the battery piece to the limiting structure 4 when the high-temperature ink droplets solidify, preventing the surface structure of the battery piece from being damaged, and reducing the defective rate of the battery piece.
[0032] Specifically, in the prior art, the limiting structure 4 and the battery piece mostly belong to surface contact, that is, the contact area between the battery piece and the limiting structure 4 is large, which is easy to cause adhesion, and the high-temperature ink droplets are easy to accumulate on the contact surface, which affects the subsequent placement of the battery piece, causes the positioning of the battery piece to deviate, and the defective rate of the battery piece after printing is high. In addition, the accumulation of high-temperature ink droplets on the contact surface makes the battery piece unable to be placed on the bearing table 2, and the limiting structure 4 needs to be cleaned or replaced, which wastes time and manpower and increases the production cost of the battery piece.
[0033] In one embodiment, the limiting structure 4 comprises a supporting seat 401 and a limiting part 402. The supporting seat 401 is arranged on the base 1 corresponding to the outer periphery of the bearing table 2, and the limiting part 402 is connected with the supporting seat 401. An end of the limiting part 402 away from the base 1 extends out of the bearing surface 201, and the limiting point 4021 is located on the side of the limiting part 402 facing the bearing table 2.
[0034] Specifically, the battery piece completely covers the bearing surface 201, and in order to better limit the battery piece, the limiting point 4021 is abutted with the edge position of the bearing table 2 to avoid displacement of the battery piece.
[0035] In one embodiment, as shown in the accompanying drawings, Figure 2 The limiting part 402 has an arc surface structure, the arc surface structure is convexly arranged towards the bearing table 2, and the contact position of the arc surface structure with the bearing table 2 forms the limiting point 4021. By arranging the limiting part 402 as an arc surface structure, the limiting part 402 is less likely to scratch the battery piece when it comes into contact with the battery piece.
[0036] Specifically, the limiting part 402 has an arc surface structure, and the other parts of the limiting part 402 can be any irregular shape, which is not limited here. The arc surface of the arc surface structure is less likely to scratch the battery piece.
[0037] In one embodiment, as shown in Figure 3 The limiting portion 402 is a rotating body 4022, and the limiting point 4021 is formed at a point corresponding to the generatrix of the contact position of the rotating body 4022 and the bearing table 2. By setting the limiting portion 402 as the rotating body 4022, the contact area between the limiting portion 402 and the battery piece is reduced, and the battery piece is prevented from adhering to the limiting portion 402.
[0038] Specifically, the rotating body 4022 can be a cylinder, a cone, a circular truncated cone, or the like.
[0039] In one embodiment, as shown in Figure 4 The limiting portion 402 is a polyhedron 4023, and the limiting point 4021 is formed at a point corresponding to the side edge of the contact position of the polyhedron 4023 and the bearing table 2. By setting the limiting portion 402 as the polyhedron 4023, the contact area between the limiting portion 402 and the battery piece is reduced, and the battery piece is prevented from adhering to the limiting portion 402.
[0040] Specifically, the polyhedron 4023 can be a triangular prism, a quadrangular prism, a triangular pyramid, a quadrangular pyramid, or the like.
[0041] It should be noted that setting the limiting portion 402 as the rotating body 4022 or the polyhedron 4023 makes it difficult for the high-temperature hot melt ink droplets to remain on the limiting portion 402, thereby preventing the limiting portion 402 from accumulating a large amount of hot melt ink droplets and improving the limiting accuracy of the limiting portion 402.
[0042] Preferably, in order to prevent the limiting portion 402 from scratching the battery piece, the limiting portion 402 can be a rotating body 4022 or a member with an arc-shaped structure at the limiting point 4021.
[0043] In one embodiment, as shown in Figures 1 to 4 The limiting structure 4 is circumferentially spaced apart along the edge of the bearing table 2.
[0044] In one embodiment, as shown in Figures 1 to 4 The bearing table 2 has a square structure, so that the bearing surface 201 has a square surface.
[0045] In one embodiment, as shown in Figures 1 to 4 The plurality of limiting structures 4 are arranged on at least two side edges of the bearing table 2. By arranging the limiting structure 4 on at least two side edges of the bearing table 2, the battery piece is further limited, the position of the battery piece is prevented from deviating during the hot melt inkjet process, and the yield of the battery piece is improved.
[0046] It should be noted that the limiting structure 4 can also be correspondingly arranged on the three side edges or arranged circumferentially, thereby further limiting the battery piece.
[0047] In one embodiment, as shown in Figures 1 to 4 The suction holes 3 include first suction holes 301 and second suction holes 302. The first suction holes 301 are arranged in an array on the bearing table 2. The second suction holes 302 are arranged at the four corners of the bearing surface 201. The first suction holes 301 arranged in an array enable the battery piece to be flatly adsorbed on the bearing table 2. The second suction holes 302 arranged at the four corners of the bearing surface 201 increase the suction force at the corners of the battery piece, thereby further enabling the battery piece to be flatly adsorbed on the bearing table 2, improving the printing quality of the pattern lines at the corners of the printed image, and avoiding unevenness of the pattern lines.
[0048] It should be noted that in practice, when the battery piece is vacuum adsorbed during printing, the four corners of the battery piece will always be raised. Therefore, the second suction holes 302 arranged at the four corners of the bearing surface 201 increase the adsorption force at the corner positions of the battery piece, thereby enabling the battery piece to be flatly adsorbed on the bearing table 2, improving the printing quality of the printed image after jet printing, and avoiding unevenness of the pattern lines.
[0049] Specifically, as shown in Figures 1 to 4 At least two second suction holes 302 are arranged at the corner positions of the bearing table 2, thereby increasing the total number of suction holes 3 at the corner positions and densely arranging the suction holes 3, thereby increasing the adsorption force at the corner positions and enabling the battery piece to be flatly adsorbed, and avoiding unevenness of the pattern lines at the four corner positions of the printed image after printing.
[0050] It should be noted that the bearing table 2 can also be designed into other shapes for battery pieces of different shapes, as long as the projection of the battery piece on the bearing table 2 completely covers the bearing table 2, so that the hot melt ink drops are fully dropped on the battery piece during hot melt jet printing, thereby avoiding damage or pollution caused by hot melt ink drops falling on positions other than the battery piece. For example, when the battery piece is a square battery piece, the bearing table 2 is a square structure, and the limiting structure 4 is arranged corresponding to the outer periphery of the bearing table 2. The battery piece is not easy to be adhered to the limiting structure 4 through the limiting points 4021. When the battery piece is a circular structure, the bearing table 2 is also a circular structure, and the limiting structure 4 is arranged corresponding to the outer periphery of the circular structure, thereby preventing the battery piece from being adhered to the limiting structure 4.
[0051] Preferably, a cooling pipeline is further arranged in the bearing table 2, and the cooling pipeline and the vacuum pipeline are arranged in layers, and it is found through practice that the solidification rate of high-temperature ink droplets on the surface of the battery piece in hot melt inkjet printing can affect the printing efficiency of the mask pattern on the surface of the battery piece and the quality of the mask pattern, in the inkjet printing, the battery piece adsorbed on the vacuum platform is controlled at 5-10 DEG C, and the high-temperature ink ejected from the nozzle falls on the low-temperature battery piece, so that the hot melt ink can be rapidly solidified into a solid pattern, and the size of the pattern line width is ensured to be the same, therefore, the cooling pipeline arranged in the bearing table 2 can improve the pattern quality after the battery piece is printed.
[0052] According to the embodiment of the utility model, on the other hand, a kind of printing equipment is further provided, including above-mentioned printing workbench.
[0053] When using the printing equipment of the embodiment, first, the position of battery piece corresponding limit structure 4 is placed on the bearing surface 201 of bearing table 2;Then, open load and make vacuum pipeline adsorb battery piece;Finally, hot melt inkjet is carried out to battery piece by nozzle, and the printing work of pattern line of battery piece is completed.
[0054] Although the embodiments of the utility model are described in combination with the drawings, those skilled in the art can make various modifications and changes without departing from the spirit and scope of the utility model, and such modifications and changes all fall within the scope defined by the appended claims.
Claims
1. A printing workbench, characterized in that: include: abutment(1); A carrying platform (2) is arranged on the base (1), a side of the carrying platform (2) away from the base (1) forms a carrying surface (201), a vacuum pipeline is formed in the carrying platform (2), an adsorption hole (3) is opened on the carrying platform (2) corresponding to the carrying surface (201), the adsorption hole (3) is connected to the vacuum pipeline, and the vacuum pipeline is suitable for connecting to negative pressure; A limiting structure (4) is provided corresponding to the outer peripheral edge of the support platform (2), and the limiting structure (4) forms a limiting point (4021) on one side of the support platform (2), and the limiting point (4021) is suitable for being arranged to abut against the edge of the battery cell.
2. The printing workbench according to claim 1, characterized in that: The limiting structure (4) includes a support seat (401) and a limiting portion (402), wherein the support seat (401) is arranged on the base (1) corresponding to the outer periphery of the supporting platform (2), and the limiting portion (402) is connected to the support seat (401). The limiting portion (402) extends out of the supporting surface (201) at one end away from the base (1), and the limiting point (4021) is located on the side of the limiting portion (402) facing the supporting platform (2).
3. The printing workbench according to claim 2, characterized in that: The limiting portion (402) has an arc-shaped structure, the arc-shaped structure is protruding toward the supporting platform (2), and the point corresponding to the contact position between the arc-shaped structure and the supporting platform (2) forms the limiting point (4021).
4. The printing workbench according to claim 2, characterized in that: The limiting portion (402) is a rotating body (4022), and the point corresponding to the busbar of the contact position between the rotating body (4022) and the supporting platform (2) forms the limiting point (4021).
5. The printing workbench according to claim 2, characterized in that: The limiting portion (402) is a polyhedron (4023), and the point corresponding to the side edge of the contact position between the polyhedron (4023) and the supporting platform (2) forms the limiting point (4021).
6. The printing workbench according to any one of claims 1 to 5, characterized in that: Several of the limiting structures (4) are arranged at intervals along the circumferential edge of the supporting platform (2).
7. The printing workbench according to claim 6, characterized in that: The supporting platform (2) is in a square structure, so that the supporting surface (201) is in a square surface.
8. The printing workbench according to claim 7, characterized in that: A plurality of the limiting structures (4) are arranged on at least two side edges of the supporting platform (2).
9. The printing workbench according to any one of claims 1 to 5, characterized in that: The adsorption holes (3) include a first adsorption hole (301) and a second adsorption hole (302), wherein a plurality of the first adsorption holes (301) are provided, and the plurality of the first adsorption holes (301) are arranged in an array on the supporting platform (2), and a plurality of the second adsorption holes (302) are provided, and the plurality of the second adsorption holes (302) are arranged at the four vertex corners of the supporting surface (201).
10. A printing device, characterized in that: include: The printing workbench according to any one of claims 1 to 9.