Printing jig with force unloading structure
By using different substrate layers and stress-relief through-hole design in the graphic area and outer area of the mesh, the problems of graphic opening deformation and ink leakage during printing of metal foil screens were solved, achieving high-precision and high-quality printing results.
Patent Information
- Application Number
- CN202520511340.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In the prior art, the lack of a support structure during printing on metal foil screen printing plates can cause deformation of the graphic opening, and the stress relief opening may lead to ink leakage, affecting the printing quality.
The graphic area and the outer area of the mesh fabric use first and second substrate layers of different materials. The first substrate layer is provided with stress relief holes to disperse the doctor blade stress, and the second substrate layer covers the stress relief holes to prevent ink overflow. Multiple stress relief hole designs are combined to disperse stress and prevent ink leakage.
It effectively reduces graphic opening deformation, improves printing accuracy, avoids ink leakage, and enhances printing quality.
Smart Images
Figure CN223918934U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to a printing jig, in particular, to a printing jig with a stress relief structure. BACKGROUND
[0002] A known printing screen is formed by interlacing warp threads and weft threads. During printing, an emulsion layer is applied to the screen, and after a pattern opening is formed in the emulsion layer, a squeegee on a printing machine is used to press the screen back and forth to squeeze the ink through the pattern opening and print it onto the printed object, thereby printing the desired printed lines or printed patterns. However, due to the mesh structure of the screen, the ink is blocked by the mesh joints during printing, which affects the overall ink penetration effect and may result in incomplete printed patterns.
[0003] To address the above situation, a metal foil is used to replace the interlaced threads of the screen to form a full opening screen without mesh joints in the pattern opening, thereby printing printed lines or printed patterns with relatively complete pattern lines. However, the full opening screen without mesh joints in the pattern opening lacks sufficient support structure, and the stress applied by the squeegee to the screen during printing may cause the pattern opening to deform and result in printing line expansion. Therefore, to improve the deformation of the pattern opening, a plurality of stress relief openings are formed in the side edges of the metal foil in the prior art to share the deformation amount of the pattern opening. CONTENT OF THE UTILITY MODEL
[0004] However, the known stress relief openings are formed through the screen, which may cause the ink to accidentally overflow during printing and result in ink leakage, affecting the printing quality. To solve this problem, the present disclosure provides a printing jig comprising a screen frame and a screen disposed in the screen frame, wherein the screen has a pattern area and a peripheral area arranged around the pattern area, and the material of the pattern area is different from that of the peripheral area. The pattern area has a first substrate layer and a second substrate layer, the first substrate layer is a plate structure and has at least one first stress relief through hole, and the second substrate layer is a plate structure and is disposed on one side of the first substrate layer and covers the first stress relief through hole.
[0005] In one embodiment, the first substrate layer is a polymer layer or a metal plate.
[0006] In one embodiment, the second substrate layer is a polymer layer.
[0007] In one embodiment, the first stress relief through hole is a slot-shaped through hole.
[0008] In one embodiment, the first stress relief through hole is provided with a film layer on the other side of the second substrate layer to cover the first stress relief through hole.
[0009] In one embodiment, the film layer is an adhesive tape.
[0010] In one embodiment, the first substrate layer further has a patterned opening region, and is provided with at least one second stress relief hole, the first stress relief hole and the second stress relief hole are respectively arranged on opposite sides of the patterned opening region, and the second substrate layer further covers the second stress relief hole.
[0011] In one embodiment, the first substrate layer further has a plurality of patterned opening regions, and is provided with at least one third stress relief hole, the third stress relief hole is arranged between the patterned opening regions, and the second substrate layer further covers the third stress relief hole.
[0012] The present disclosure effectively disperses the stress applied to the screen plate by the squeegee during printing by arranging the first stress relief hole in the first substrate layer of the screen cloth, thereby reducing the situation that the pattern opening of the patterned region in the screen cloth is deformed due to stress and causes printing line expansion. In addition, since the present disclosure only arranges the first stress relief hole in the first substrate layer without penetrating the second substrate layer, the possibility of ink leakage caused by accidental ink overflow during printing is fundamentally avoided, thereby improving the printing quality. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1A A top view structural schematic diagram of a printing jig showing some embodiments of the present disclosure.
[0014] Figure 1B A side view cross-sectional structural schematic diagram of a printing jig showing some embodiments of the present disclosure. Figure 1A
[0015] Figure 2 A side view cross-sectional structural schematic diagram of a printing jig showing some embodiments of the present disclosure.
[0016] Figure 3 A side view cross-sectional structural schematic diagram of a printing jig showing some embodiments of the present disclosure.
[0017] Figure 4 A side view cross-sectional structural schematic diagram of a printing jig showing some embodiments of the present disclosure.
[0018] The reference signs are as follows:
[0019] 100, 200, 300, 400: printing jig
[0020] 110: screen frame
[0021] 120: screen cloth
[0022] 122: patterned region
[0023] 124: peripheral region
[0024] 1222: first substrate layer
[0025] 1224: second substrate layer
[0026] 1222a: first force relief through hole
[0027] 1222b: second force relief through hole
[0028] 1222c: third force relief through hole
[0029] 130: film layer
[0030] 1222g: graphic opening area DETAILED DESCRIPTION
[0031] The following detailed description is presented to provide a thorough understanding of the application. The described embodiments are not intended to be exhaustive or to be limited to only the described embodiments. The described embodiments are presented for the purpose of providing a detailed description of the application, and are not intended to limit the scope of the application. The description of structural details is not intended to limit the scope of the application. Any structure, which is the result of recombining the elements of the application, is intended to fall within the scope of the application. The terms used in the specification and claims, unless otherwise specifically noted, have their ordinary meanings in the art. Certain words are discussed below or elsewhere in the specification to provide additional guidance in describing the inventive subject matter. Embodiments of the present application can be implemented in hardware, software, firmware, or any combination thereof.
[0032] The terms used in the specification and claims, unless otherwise specifically noted, have their ordinary meanings in the art. Certain words are discussed below or elsewhere in the specification to provide additional guidance in describing the inventive subject matter. Embodiments of the present application can be implemented in hardware, software, firmware, or any combination thereof.
[0033] Reference will now be made to the drawings, which depict only typical embodiments of the application, and are not therefore to be considered to be limiting of its scope. Figure 1A and Figure 1B , Figure 1A FIG. 1 shows a top view of a printing tool 100 according to some embodiments of the present application, and Figure 1B FIG. 2 shows a side view of the printing tool 100 along the line A-A in FIG. 1, and Figure 1AA side view of a cross-sectional structure of the printing jig 100 is shown in FIG. 1. The printing jig 100 is, for example, rectangular, but is not limited thereto. The printing jig 100 is configured to fix a screen cloth 120 in a screen frame 110. Specifically, the screen cloth 120 has a graphic area 122 and a peripheral area 124 surrounding the graphic area 122. The graphic area 122 and the peripheral area 124 can be made of different materials. In an embodiment, the peripheral area 124 is made of a high molecular material such as polyester fiber, but the present disclosure is not limited thereto. The graphic area 122 has a first substrate layer 1222 and a second substrate layer 1224 stacked on top of each other. Both the first substrate layer 1222 and the second substrate layer 1224 are plate-like structures. The first substrate layer 1222 has a graphic opening area 1222g for forming a graphic opening, and further has a first stress relief hole 1222a penetrating the first substrate layer 1222 outside the graphic opening area 1222g. The number of the first substrate layer 1222 and / or the second substrate layer 1224 is not limited to one, and multiple first substrate layers 1222 and / or second substrate layers 1224 can be provided as needed. The area and thickness of the first substrate layer 1222 and / or the second substrate layer 1224 can also be adjusted as needed. In an embodiment, the first substrate layer 1222 is made of a high molecular material such as polyimide, and can also be a metal plate made of nickel, stainless steel, zinc, copper, aluminum, magnesium, lead, tin, or an alloy or combination thereof. The second substrate layer 1224 is made of a high molecular material such as polyimide. The first substrate layer 1222 and the second substrate layer 1224 can be joined by, for example, pressing or applying an adhesive, but are not limited thereto.
[0034] Specifically, the first substrate layer 1222 serves as a squeegee surface facing and receiving a squeegee (not shown) during printing, and the second substrate layer 1224 serves as a printing surface facing a printing object (not shown) during printing. When the printing jig 100 is applied to actual printing, the squeegee presses back and forth on the printing paste (not shown) on the first substrate layer 1222, so that the printing paste enters and passes through the graphic opening (not shown) of the screen cloth 120 to be printed on the printing object. The stress generated by the squeegee pressing on the first substrate layer 1222 can be dispersed through the first stress relief hole 1222a, avoiding stress concentration in some areas and reducing the degree of pressure expansion deformation of the graphic opening. In this way, the accuracy of the printed pattern of the printing jig 100 can be improved.
[0035] Continuing with the previous embodiment, the second substrate layer 1224 is disposed on one side of the first substrate layer 1222 and covers the first stress-relieving through-hole 1222a. When the printing fixture 100 is applied to actual printing, because the first stress-relieving through-hole 1222a is only opened in the first substrate layer 1222 and does not penetrate the second substrate layer 1224, even if the printing paste placed on the first substrate layer 1222 is accidentally squeezed into the first stress-relieving through-hole 1222a by the doctor blade, it will still be blocked by the second substrate layer 1224, so that the ink in the first stress-relieving through-hole 1222a will not overflow onto the printed object, thereby maintaining the printing quality. It should be understood that, in Figure 1A and Figure 1B In the embodiments described, the first stress-relieving through-hole 1222a is shown as a single through-hole. However, in practical applications, the first substrate layer 1222 can also be provided with more first stress-relieving through-holes 1222a as needed. When there are multiple first stress-relieving through-holes 1222a, all the first stress-relieving through-holes 1222a can be covered by an integrally formed second substrate layer 1224, or multiple second substrate layers 1224 can be provided to cover each first stress-relieving through-hole 1222a respectively. In addition, the shape of the first stress-relieving through-hole 1222a is, for example, a groove-shaped through-hole. In other embodiments, the first stress-relieving through-hole 1222a can also be any other shape sufficient to disperse stress, and can be composed of multiple parallel or uneven through-holes of the same or different sizes. This disclosure does not limit this.
[0036] To further prevent printing paste from overflowing onto the substrate due to the doctor blade pressure, in another embodiment, the first relief through-hole 1222a can also be covered to reduce the chance of printing paste accidentally seeping into the first relief through-hole 1222a. Please refer to [link to relevant documentation]. Figure 2 , Figure 2 The diagram shows a side cross-sectional view of a printing fixture 200 according to some embodiments of the present disclosure. Similar to the structure of the printing fixture 100, the printing fixture 200 has a frame 110 and a mesh fabric 120. The mesh fabric 120 is also composed of a pattern area 122 and a peripheral area 124 formed by a first substrate layer 1222 and a second substrate layer 1224 stacked on top of each other. The second substrate layer 1224 also has a first stress-relieving through hole 1222a. For the description of the same components, please refer to the relevant paragraphs above. Figure 2 In one embodiment, a film layer 130 is provided on the side of the first stress-relieving through-hole 1222a opposite to the second substrate layer 1224 in the printing fixture 200. The film layer 130 is, for example, adhesive tape, used to cover the first stress-relieving through-hole 1222a. Alternatively, in other embodiments, the film layer 130 may also be a sheet structure of any material, and may be covered on the first stress-relieving through-hole 1222a by various means such as pasting or pressing, and this disclosure is not limiting. When the printing fixture 200 is applied to actual printing, because it is shielded by the second substrate layer 1224 and the film layer 130, the printing paste will be less likely to flow into the first stress-relieving through-hole 1222a and overflow onto the printed object.
[0037] In yet another embodiment, the printing jig can also be provided with stress relief holes on both sides of the patterned opening area of the screen cloth to collectively disperse the stress generated by the squeegee and to make the stress on both sides of the screen cloth uniform. Please refer to Figure 3 , Figure 3 A side view cross-sectional structure schematic diagram of a printing jig 300 showing some embodiments of the present disclosure. Similar to the structure of the printing jig 100, the printing jig 300 has a screen frame 110 and a screen cloth 120, and the screen cloth 120 is also composed of a patterned area 122 composed of a first substrate layer 1222 and a second substrate layer 1224 superimposed on top of each other and a peripheral area 124, and the second substrate layer 1224 is also provided with a first stress relief hole 1222a. The same components are described in the previous paragraphs. The difference between the printing jig 100 and the printing jig 300 is that the first substrate layer 1222 of the printing jig 300 is further provided with a second stress relief hole 1222b. The first stress relief hole 1222a and the second stress relief hole 1222b are respectively provided on both sides of the patterned opening area 1222g, and the second substrate layer 1224 also covers the second stress relief hole 1222b. For example, the first stress relief hole 1222a and the second stress relief hole 1222b can be covered by a second substrate layer 1224 formed integrally, or a plurality of second substrate layers 1224 can be provided to respectively cover the first stress relief hole 1222a and the second stress relief hole 1222b.
[0038] In the above embodiment, when the printing jig 300 is applied to actual printing, the first substrate layer 1222 can simultaneously disperse the stress generated by the squeegee through the first stress relief hole 1222a and the second stress relief hole 1222b on both sides, and the second substrate layer 1224 can simultaneously prevent the printing paste from accidentally passing through the first stress relief hole 1222a and the second stress relief hole 1222b to misprint on the printed object, so as to maintain the printing quality. It should be understood that in this embodiment, the second stress relief hole 1222b is shown as a single hole, but similar to the first stress relief hole 1222a, in actual application, the first substrate layer 1222 can also be provided with more second stress relief holes 1222b according to needs. Moreover, the shape of the second stress relief hole 1222b can be, for example, a slot-shaped hole or any other shape sufficient to disperse stress, and can be composed of a plurality of parallel or irregularly shaped holes of the same or different sizes.
[0039] In yet another embodiment, to adapt to different printing needs, the first substrate layer 1222 can be provided with a plurality of patterned opening areas 1222g, for example Figure 4 as shown. Figure 4A side view cross-sectional structure diagram of a printing jig 400 according to some embodiments of the present disclosure is shown. Similar to the structure of the printing jig 100, the printing jig 400 has a screen frame 110 and a screen cloth 120, and the screen cloth 120 also consists of a pattern area 122 composed of a first substrate layer 1222 and a second substrate layer 1224 superimposed on top of each other, and a peripheral area 124, and the second substrate layer 1224 also has a first stress relief through hole 1222a. The same components are described in the previous paragraphs. The difference between the printing jig 100 and the printing jig 400 is that the first substrate layer 1222 of the printing jig 400 has a plurality of pattern opening areas 1222g. Between the plurality of pattern opening areas 1222g, a third stress relief through hole 1222c is provided, and the second substrate layer 1224 also covers the third stress relief through hole 1222c. It should be understood that, for the sake of illustration, Figure 4 In the embodiments of the present disclosure, only two pattern opening areas 1222g and one third stress relief through hole 1222c are shown. In actual applications, more pattern opening areas 1222g can be provided according to requirements, and a third stress relief through hole 1222c can be provided between each adjacent pattern opening area 1222g.
[0040] In Figure 4 the embodiments of the present disclosure, when the printing jig 400 is applied to actual printing, because the plurality of pattern opening areas 1222g have the third stress relief through hole 1222c provided therebetween, the stress generated by the squeegee pressing the first substrate layer 1222 can be evenly dispersed. And because the second substrate layer 1224 also covers the third stress relief through hole 1222c at the same time, it can prevent the printing paste from being mistakenly printed onto the printed object through the third stress relief through hole 1222c by accident, so as to maintain the printing quality. It should be understood that the third stress relief through hole 1222c is shown as a single through hole, but similar to the first stress relief through hole 1222a or the second stress relief through hole 1222b, in actual applications, the first substrate layer 1222 can also provide more third stress relief through holes 1222c according to requirements. Moreover, the third stress relief through hole 1222c can also be shaped, for example, as a slot-shaped through hole or any other shape sufficient to disperse stress, and can be composed of a plurality of parallel or non-parallel through holes of the same or different sizes.
[0041] Although the embodiments of the present disclosure have been disclosed as above, they are not intended to limit the present disclosure, and those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be defined by the appended claims.
Claims
1. A printing fixture, characterized in that, Include: A wire frame; and A mesh fabric is disposed within the mesh frame, wherein the mesh fabric has a patterned area and a peripheral area surrounding the patterned area, the material of the patterned area being different from that of the peripheral area, and the patterned area having: A first substrate layer, having a plate-like structure, wherein the first substrate layer has at least one first stress-relieving through hole; and A second substrate layer, which is a plate-like structure, is disposed on one side of the first substrate layer and covers the first stress relief through hole.
2. The printing fixture as described in claim 1, characterized in that, The first substrate layer is a polymer layer or a metal plate.
3. The printing fixture as described in claim 1, characterized in that, The second substrate layer is a polymer layer.
4. The printing fixture as described in any one of claims 1-3, characterized in that, The first unloading through hole is a groove-shaped through hole.
5. The printing fixture as described in any one of claims 1-3, characterized in that, A film layer is provided on the other side of the first stress relief through hole opposite to the second substrate layer to cover the first stress relief through hole.
6. The printing fixture as described in claim 5, characterized in that, The film layer is adhesive tape.
7. The printing fixture as described in claim 1, characterized in that, The first substrate layer further has a patterned opening area and at least one second unloading through hole. The first unloading through hole and the second unloading through hole are respectively disposed on opposite sides of the patterned opening area, and the second substrate layer further covers the second unloading through hole.
8. The printing fixture as described in claim 1, characterized in that, The first substrate layer further has multiple patterned opening areas and at least one third stress-relieving through hole, which is disposed between the multiple patterned opening areas, and the second substrate layer further covers the third stress-relieving through hole.