Printing device

Abstract

The utility model discloses a printing device, printing device includes screen frame and screen board, screen frame is hollow structure, screen board is located screen frame, and the outer wall of screen board is connected with the inner wall of screen frame along the circumference, along the thickness direction of printing device, the bottom wall of screen board is no less than the bottom wall of screen frame, screen board has at least one printing area, and every printing area has a plurality of interval distribution's screen hole, and a plurality of screen holes in every printing area enclose the printing area of rectangle together. The design and distribution mode of this screen hole make the glue material more uniform and stable when passing through the screen hole, ensure that the glue material is evenly distributed in the whole printing area, make the printing effect consistent and reliable.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, and more specifically, to a printing apparatus. Background Technology

[0002] In the printing industry, printing equipment is the core component for completing various printing tasks, and its performance directly affects the quality, efficiency, and applicability of printing. Printing equipment mainly consists of two parts: the screen frame and the screen plate. The screen frame typically supports and fixes the screen plate, while the screen plate is the key structure that carries the ink and transfers it to the substrate using specific methods.

[0003] However, in the actual printing process, due to the unreasonable distribution and shape design of the mesh holes in the stencil, the ink penetration is uneven, resulting in poor printing effect. Utility Model Content

[0004] The purpose of this invention is to provide a new technical solution for a printing device.

[0005] According to one aspect of the present invention, a printing apparatus is provided.

[0006] The printing apparatus includes: A wire frame, wherein the wire frame has a hollow structure; A screen is disposed on the screen frame, and the outer wall of the screen is circumferentially connected to the inner wall of the screen frame. Along the thickness direction of the printing device, the bottom wall of the screen is not lower than the bottom wall of the screen frame. The screen has at least one printing area, and each printing area has a plurality of spaced mesh holes. The plurality of mesh holes in each printing area together form a rectangular printing area.

[0007] Optionally, the cross-section of the mesh is rectangular or elliptical.

[0008] Optionally, a plurality of the mesh openings are arranged at equal intervals along one side of the printing area; And / or, the plurality of mesh openings within each of the printing areas are arranged in a centrally symmetrical manner.

[0009] Optionally, each of the printing areas has a thinning portion located at the edge of the printing area.

[0010] Optionally, the thinning portion is recessed from the top wall of the mesh plate to the bottom wall of the mesh plate; And / or, the thinned portion is a contoured design.

[0011] Optionally, each of the printing areas has multiple partitions, and the partitions are provided between any two adjacent mesh openings.

[0012] Optionally, the partition portion is recessed from the bottom wall to the top wall of the mesh plate, and the top wall of the partition portion is flush with the top wall of the mesh plate.

[0013] Optionally, the multiple partitions may have identical structures.

[0014] Optionally, the mesh plate is a rigid mesh plate.

[0015] Optionally, the bottom wall of the mesh panel is flush with the bottom wall of the mesh frame; And / or, the thickness of the mesh panel is less than the thickness of the mesh frame.

[0016] One technical advantage of this utility model is: The printing apparatus includes a frame and a screen plate. The frame has a hollow structure. The screen plate is disposed on the frame, and its outer wall is circumferentially connected to the inner wall of the frame. Along the thickness direction of the printing apparatus, the bottom wall of the screen plate is not lower than the bottom wall of the frame. The screen plate has at least one printing area, and each printing area has multiple spaced mesh openings. These mesh openings together form a rectangular printing area. This mesh design and distribution ensures that the adhesive material passes through the mesh openings more evenly and stably, guaranteeing uniform distribution of the adhesive material throughout the printing area, resulting in consistent and reliable printing effects.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of a printing apparatus according to an embodiment of the present utility model; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is another schematic diagram of a printing apparatus according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Frame; 2. Screen; 21. Printing area; 211. Mesh opening; 212. Thinning section; 213. Partition section; 20. Printing substrate. Detailed Implementation

[0021] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0022] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0023] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0024] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0026] like Figure 1 As shown, the printing apparatus provided by this utility model includes: Frame 1, wherein the frame 1 has a hollow structure; A screen 2 is disposed on the screen frame 1, and the outer wall of the screen 2 is circumferentially connected to the inner wall of the screen frame 1. Along the thickness direction of the printing device, the bottom wall of the screen 2 is not lower than the bottom wall of the screen frame 1. The screen 2 has at least one printing area 21, and each printing area 21 has a plurality of spaced mesh holes 211. The plurality of mesh holes 211 in each printing area 21 together form a rectangular printing area.

[0027] Specifically, high-strength, corrosion-resistant materials such as aluminum alloy and stainless steel can be selected when manufacturing the frame 1 and the screen plate 2. These materials have excellent mechanical properties and chemical stability, enabling the printing device of this invention to maintain structural integrity under various harsh environmental conditions.

[0028] In one embodiment, a high-strength, corrosion-resistant aluminum alloy can be used to make the wire mesh frame 1. Aluminum alloy has the advantages of being lightweight, high-strength, and not easily deformed, which can ensure the stability of the wire mesh frame 1 during long-term use.

[0029] According to the design requirements, CNC cutting equipment can be used to cut the aluminum alloy sheet into the required hollow rectangular frame shape. Then, the cut aluminum alloy frame is surface treated by anodizing, electroplating or spraying to form a dense oxide film on the frame surface, which can improve the corrosion resistance and surface hardness of the frame 1.

[0030] In one embodiment, engineering plastics (such as polycarbonate) can also be used to make the frame 1. Engineering plastics have the advantages of being lightweight, low-cost, and having good insulation properties, making them suitable for printing applications where weight and insulation performance are critical.

[0031] In one embodiment, carbon fiber composite material can also be used to make the frame 1. Carbon fiber composite material has the advantages of high strength, high modulus, and light weight, which can meet the requirements of some printing scenarios with high requirements for structural strength and weight.

[0032] In one embodiment, stainless steel can be used to make the mesh panel 2. Stainless steel has the characteristics of high strength, wear resistance, and chemical corrosion resistance, which can ensure the service life of the mesh panel 2.

[0033] In one embodiment, polyester fiber material can also be used to make the stencil 2. Polyester fiber material has the characteristics of high strength, good elasticity, and chemical corrosion resistance, and can be used in a variety of printing environments.

[0034] like Figure 1 and Figure 2 As shown, one, two or even more printing areas 21 can be formed on the screen 2 according to printing requirements. Each printing area 21 has multiple mesh holes 211, and the multiple mesh holes 211 cooperate with each other to achieve printing.

[0035] Additionally, an adjustable printing area 21 can be provided on the screen 2. For example, a movable border device can be used to mark the boundary of the printing area 21 on the screen 2. The border device can be adjusted and fixed by a slide rail and a locking mechanism, thereby adapting to the printing needs of different substrates 20.

[0036] like Figure 1 and Figure 3 As shown, in this invention, the screen plate 2 is placed on the screen frame 1, and the outer wall of the screen plate 2 and the inner wall of the screen frame 1 are connected in a sealed manner around the perimeter. This tight and stable connection ensures the positional stability of the screen plate 2 during the printing process, allowing the adhesive to accurately pass through the mesh 211 and form a printing effect on the substrate 20 that is highly consistent with the design pattern, thereby improving the printing accuracy.

[0037] Furthermore, the circumferential connection between the screen plate 2 and the frame 1 not only ensures printing accuracy but also enhances the stability of the entire printing apparatus. During the printing process, the printing apparatus is subjected to various external forces, such as the pressure of the squeegee and the impact of the adhesive material. The robust connection of this invention effectively disperses and withstands these external forces, reducing stress concentration in the printing apparatus and improving its overall strength and stability. This makes the printing apparatus less prone to deformation and breakage during long-term use, extending its service life and reducing maintenance and replacement costs.

[0038] Furthermore, the bottom wall of the screen 2 is set to be no lower than the bottom wall of the screen frame 1 along the thickness direction of the printing apparatus. That is, the bottom wall of the screen 2 is flush with the bottom wall of the screen frame 1, or the bottom wall of the screen 2 is higher than the bottom wall of the screen frame 1. This ensures that the adhesive material can pass smoothly from the mesh 211 onto the substrate 20, avoiding the problem of adhesive material accumulation. This makes the edges of the printed pattern neater and clearer, thereby improving the quality and integrity of the printing.

[0039] like Figure 2 As shown, each printing area 21 has multiple spaced mesh openings 211, which together form a rectangular printing area. This design and distribution of the mesh openings 211 makes the adhesive material pass through the mesh openings 211 more evenly and stably, ensuring that the adhesive material is evenly distributed throughout the printing area, resulting in consistent and reliable printing effects.

[0040] The distribution and size of the mesh 211 in each printing area 21 can be designed according to actual needs, so that the printing device of this utility model can adapt to different specifications of substrates 20 and printing needs, and also improve the versatility and flexibility of the printing device, enabling it to be widely used in various printing scenarios.

[0041] Optionally, the cross-section of the mesh 211 is rectangular or elliptical.

[0042] Specifically, the cross-section of the mesh 211 can be set to rectangular or elliptical. Because rectangular and elliptical meshes 211 have well-defined geometric shapes and stable printing characteristics, they can achieve the desired printing effect more quickly. During the printing process, the stable structure of the rectangular and elliptical meshes 211 ensures the stability of the printing speed. Due to the regular shape of the mesh 211, the adhesive passes through evenly, and the resistance of the squeegee when pushing the adhesive is relatively stable, allowing the printing speed to be maintained within a relatively constant range. This stable printing speed helps improve production efficiency and also reduces printing quality problems caused by speed fluctuations, such as adhesive buildup and poor printing.

[0043] Furthermore, during the printing process, the mesh 211 is subjected to various external forces, such as the pressure of the squeegee and the impact of the adhesive material. The regular shape of the rectangular and elliptical mesh 211 can better disperse these external forces, reducing deformation and damage to the mesh 211. Compared with some irregularly shaped mesh 211, this enhanced structural strength can extend the service life of the mesh 211 and reduce printing defects caused by mesh 211 damage.

[0044] In addition, the mesh 211 can be set to maintain a certain size to ensure that high-viscosity adhesive can pass through and be filled smoothly, thereby helping to achieve a thick printing layer.

[0045] Optionally, a plurality of the mesh openings 211 are arranged at equal intervals along one side of the printing area; And / or, the plurality of meshes 211 within each of the printing areas 21 are arranged in a centrally symmetrical manner.

[0046] Specifically, when multiple mesh openings 211 are arranged at equal intervals along one edge of the printing area, the adhesive material can pass through the mesh openings 211 and adhere to the substrate 20 in a relatively regular manner during the printing process. This allows the edges of the printed pattern to present a highly regular straight line shape, avoiding irregularities caused by uneven distribution of the mesh openings 211.

[0047] The centrally symmetrical arrangement of multiple mesh openings 211 within the same printing area 21 ensures relatively uniform penetration direction and speed of the adhesive material within the printing area, which is beneficial for the even spreading and drying of the adhesive material on the surface of the substrate 20. This centrally symmetrical arrangement of the mesh openings 211 also enhances the versatility and flexibility of the printing apparatus. The centrally symmetrical mesh opening design can adapt to different printing needs without requiring large-scale adjustments to the printing apparatus.

[0048] Optionally, each of the printing areas 21 has a thinning portion 212 located at the edge of the printing area.

[0049] like Figure 1 and Figure 2 As shown, a thinning portion 212 located at the edge is provided in each printing area 21. On the one hand, it can improve the adhesion of the adhesive material at the edge of the printing area, so that the thickness of the printing area edge gradually changes. When the adhesive material is adhered to the substrate 20 through the mesh 211, it can transition more smoothly.

[0050] On the other hand, during the battery production process, the thinning part 212 is aligned with the electrode tab so that the adhesive material printed at the corresponding electrode tab can be thinned, which facilitates the positioning and assembly of the electrode tab.

[0051] Optionally, the thinning portion 212 is recessed from the top wall of the mesh plate 2 to the bottom wall of the mesh plate 2; And / or, the thinning portion 212 is a contour-following design.

[0052] like Figure 1 and Figure 2 As shown, on the one hand, the concave thinning portion 212 can make the force on the edge of the mesh 211 more uniform. During the repeated pushing of the adhesive material by the scraper, the thinning portion 212 can disperse the pressure of the scraper on the edge of the mesh 211, reducing local stress concentration; on the other hand, when the thinning portion 212 is formed concavely from the top wall to the bottom wall of the mesh plate 2, the amount of adhesive material passing through the mesh 211 can be precisely controlled, which is convenient for positioning and assembling the tabs during battery production, and also convenient for matching the thickness of the tabs.

[0053] Furthermore, the design of the thinning section 212 can better adapt to various printing substrates 20. For softer printing substrates 20, such as thin paper and plastic film, the thinning section 212 can prevent the printing substrate 20 from deforming or breaking due to excessive pressure, while ensuring the normal passage of the adhesive material; for harder printing substrates 20, such as metal plates and glass, the thinning section 212 can ensure that the adhesive material adheres fully under certain pressure.

[0054] like Figure 1 and Figure 2 As shown, the contour design of the thinning portion 212 can be precisely designed according to the shape of the printed pattern, so that the outline of the thinning portion 212 perfectly matches the edge of the pattern, thereby meeting different printing requirements. For example, in the battery production process, the thinning portion 212 is usually designed to match the shape of the tab to facilitate the assembly of the electrode.

[0055] Optionally, each of the printing areas 21 has a plurality of partitions 213, and the partitions 213 are provided between any two adjacent meshes 211.

[0056] like Figure 2 As shown, multiple baffles 213 are provided within each printing area 21, and a baffle 213 is provided between any two adjacent mesh openings 211. This design creates a precise channel for the flow of the adhesive material. The baffles 213 can be baffles, guide channels, or other structures. During printing, when the squeegee pushes the adhesive material, the design of the baffles 213 guides the adhesive material to flow only through specific mesh openings 211. The baffles 213 prevent irregular flow of the adhesive material between adjacent mesh openings 211, ensuring that the adhesive material accurately passes through the mesh openings 211 corresponding to the pattern, thereby improving the printing effect and reducing printing errors caused by adhesive material diffusion or misalignment.

[0057] Furthermore, the partitions 213 between adjacent mesh openings 211 can effectively prevent the lateral spread of the adhesive material. In conventional screen printing, when the squeegee applies pressure to push the adhesive material, the adhesive material easily overflows in the gaps between adjacent mesh openings 211, resulting in blurred edges of the printed pattern. The partitions 213 in this invention form a barrier, restricting the flow range of the adhesive material, allowing it to pass vertically downwards from the mesh openings 211 onto the substrate 20.

[0058] Optionally, the partition portion 213 is recessed from the bottom wall of the mesh plate 2 to the top wall of the mesh plate 2, and the top wall of the partition portion 213 is flush with the top wall of the mesh plate 2.

[0059] like Figure 2 As shown, during the printing process, when the squeegee pushes the adhesive material, the concave partition 213 can precisely guide the adhesive material to flow out only through specific mesh openings 211, thereby avoiding mesh pattern problems during printing. When the squeegee passes through the partition 213, the concave shape also allows the adhesive material to form a relatively stable pressure distribution on both sides of the partition 213, ensuring that each mesh opening 211 receives an appropriate amount of adhesive material.

[0060] The top wall of the partition 213 is flush with the top wall of the screen 2. During printing, the squeegee makes full contact with the top wall of the screen 2, which can more effectively squeeze the adhesive material through the mesh 211, thereby avoiding interference from the partition 213 in the printing process. The concave partition 213 prevents the adhesive material from penetrating between adjacent meshes 211, making the boundary of the printing area corresponding to each mesh 211 clear, which helps to improve the printing effect.

[0061] Optionally, the plurality of the partitions 213 have the same structure.

[0062] Specifically, setting multiple partitions 213 with the same structure in each printing area 21 helps to quickly form multiple partitions 213 in the same printing area 21, and also improves the structural symmetry and stability of the same printing area 21.

[0063] While meeting the tension and allowable stress of the screen plate 2, the thickness and width of the partition 213 can be appropriately reduced. This allows the partition 213 to prevent irregular flow of adhesive material between adjacent mesh openings 211 and ensure that the adhesive material passes through the mesh openings 211 of the corresponding pattern accurately. At the same time, it can also reduce the space occupied by the partition 213 on the screen plate 2, which is conducive to the lightweight development of printing equipment.

[0064] Optionally, the mesh plate 2 is a rigid mesh plate 2.

[0065] Specifically, the rigid screen 2 can reduce common printing defects such as plate clogging and missed printing. Due to its smooth surface and high rigidity, the adhesive flows more smoothly on the screen 2, making it less prone to accumulating near the mesh openings 211 and causing plate clogging. Simultaneously, the rigid screen 2 maintains stable tension under squeegee pressure, ensuring the adhesive passes evenly through the mesh openings 211, reducing missed printing. The rigidity of the rigid screen 2 allows the squeegee to apply pressure more evenly when pushing the adhesive, resulting in more uniform adhesion of the adhesive to the substrate 20. During printing, the contact between the squeegee and the rigid screen 2 is more stable, and the pressure distribution is uniform, avoiding uneven adhesive thickness caused by uneven pressure, thus improving printing results.

[0066] Furthermore, the rigid screen 2 has high rigidity and is not easily deformed during the printing process. When the squeegee pushes the adhesive material through the mesh 211, the rigid screen 2 remains stable. Under the pressure of the squeegee, the rigid screen 2 does not experience localized dents or deformation like the flexible screen 2, ensuring that the adhesive material is accurately extruded from the mesh 211 and adhered to the designated position on the substrate 20.

[0067] Optionally, the bottom wall of the mesh plate 2 is flush with the bottom wall of the mesh frame 1; And / or, the thickness of the mesh plate 2 is less than the thickness of the mesh frame 1.

[0068] like Figure 3 As shown, the bottom wall of the screen plate 2 is flush with the bottom wall of the screen frame 1. On the one hand, the screen frame 1 can be used to press the substrate 20 to prevent the substrate 20 from shifting during the printing process, and the adhesive material can be squeezed out to the designated position on the substrate 20 through the mesh 211. On the other hand, setting the bottom wall of the screen plate 2 to be flush with the bottom wall of the screen frame 1 also facilitates quick installation of both, thereby reducing the assembly difficulty of the printing device.

[0069] Setting the thickness of the screen plate 2 to be less than the thickness of the screen frame 1 can also reduce the overall thickness of the printing device, which is conducive to the lightweight development of the printing device.

[0070] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0071] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A printing apparatus, characterized in that, include: Frame (1), the frame (1) is a hollow structure; A screen (2) is disposed on the screen frame (1), and the outer wall of the screen (2) is circumferentially connected to the inner wall of the screen frame (1). Along the thickness direction of the printing device, the bottom wall of the screen (2) is not lower than the bottom wall of the screen frame (1). The screen (2) has at least one printing area (21). Each printing area (21) has a plurality of spaced mesh holes (211). The plurality of mesh holes (211) in each printing area (21) together form a rectangular printing area.

2. The printing apparatus according to claim 1, characterized in that, The cross-section of the mesh (211) is rectangular or elliptical.

3. The printing apparatus according to claim 1, characterized in that, Along one side of the printing area, a plurality of mesh openings (211) are arranged at equal intervals; And / or, the plurality of meshes (211) within each of the printing areas (21) are arranged in a centrally symmetrical manner.

4. The printing apparatus according to claim 1, characterized in that, Each of the printing areas (21) has a thinning portion (212) located at the edge of the printing area.

5. The printing apparatus according to claim 4, characterized in that, The thinning portion (212) is recessed from the top wall of the mesh plate (2) to the bottom wall of the mesh plate (2); And / or, the thinning portion (212) is a contoured design.

6. The printing apparatus according to claim 1, characterized in that, Each of the printing areas (21) has a plurality of partitions (213), and the partitions (213) are provided between any two adjacent meshes (211).

7. The printing apparatus according to claim 6, characterized in that, The partition (213) is recessed from the bottom wall of the mesh plate (2) to the top wall of the mesh plate (2), and the top wall of the partition (213) is flush with the top wall of the mesh plate (2).

8. The printing apparatus according to claim 7, characterized in that, The multiple partitions (213) have the same structure.

9. The printing apparatus according to any one of claims 1 to 8, characterized in that, The mesh plate (2) is a rigid mesh plate.

10. The printing apparatus according to claim 9, characterized in that, The bottom wall of the mesh plate (2) is flush with the bottom wall of the mesh frame (1); And / or, the thickness of the mesh plate (2) is less than the thickness of the mesh frame (1).

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