Component for reinforcing screen plate, screen plate and printing device

Abstract

The utility model relates to the field of circuit board printing equipment, in particular to a component for reinforcing a screen plate, the screen plate and a printing device. The component for reinforcing the screen plate comprises a stiffening part, the stiffening part is used for being connected with the side, where printing holes are located, of the screen plate, the stiffening part comprises a plurality of supporting parts arranged at intervals, the screen plate is provided with a plurality of printing holes, and the supporting parts are located between every two adjacent printing holes; the screen plate is provided with the component used for reinforcing the screen plate. The printing device adopts the screen plate, and components for reinforcing the screen plate are arranged on the screen plate, so that the deformation resistance of the screen plate is enhanced, and the service life of the screen plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of circuit board printing equipment, and particularly relates to a component for reinforcing a stencil, a stencil and a printing device. Background Art

[0002] When printing a circuit board, solder paste or other solderable substances are commonly used to print lead frames, etc. During this printing process, a stencil is required. The stencil is closely attached to the object to be soldered, and the solder paste or other solderable substances are evenly printed onto the specified position on the object to be soldered through a squeegee.

[0003] When performing printing of a larger size, a stencil with larger printing holes needs to be used for printing. The larger the size to be printed, the larger the size of the printing holes used; at the same time, in order to avoid abnormal situations such as solder balls on the object to be printed after printing, the thickness of the solderable substance to be printed needs to be small, which requires the thickness of the stencil to be small. Therefore, if the above working conditions are to be met, the stencil will have large printing holes but a thin stencil thickness. Such a structure causes the stencil to be extremely prone to deformation during operation, affecting the service life of the stencil. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art that the stencil has large printing holes but a thin stencil thickness, is extremely prone to deformation during operation, and affects the service life of the stencil, and provides a component for reinforcing a stencil, a stencil and a printing device.

[0005] In a first aspect, the utility model provides a component for reinforcing a stencil, including a stiffening part, the stiffening part is used for connecting with the side where the printing holes of the stencil are located, the stiffening part includes a plurality of support parts arranged at intervals, the stencil is provided with a plurality of printing holes, and the support parts are located between two adjacent printing holes.

[0006] When using a stencil for printing operations, the stencil abuts against the printing substrate, and the printing substrate exerts a force on the stencil, causing the stencil to tend to deform. By installing components for strengthening the stencil on the stencil, the stiffening portion can disperse the force received by the stencil, reduce the probability of stress concentration, and improve the reliability of the stencil; when the stencil abuts against the printing substrate, stress concentration is likely to occur at the printing holes, resulting in deformation of the structure at the printing holes. By arranging two adjacent support portions on both sides of the printing hole respectively, the force received at the printing hole can be dispersed through the support portions, reducing the probability of stress concentration at the printing hole, and further reducing the occurrence of poor printing accuracy caused by deformation of the structure at the printing hole during the printing operation. At the same time, the thicknesses of the stiffening portion and the support portion do not affect the thickness of the solderable material printed, and do not increase the thickness of the stencil itself, so the printing effect is not affected. Through the above settings, the anti-deformation ability of the stencil is enhanced, and the service life of the stencil is improved.

[0007] The stiffening portion can be a stiffening bar or can be set as a stiffening plate, etc.

[0008] The stiffening portion can be fixedly connected to the stencil or can be connected to the stencil in a detachable manner.

[0009] The support portion can be set as a support bar or a dividing mesh, etc.

[0010] The support portion is a support bar, the stiffening portion is a stiffening bar, and the length direction of the support portion is perpendicular to the length direction of the stiffening portion.

[0011] By setting the length direction of the support portion perpendicular to the length direction of the stiffening portion, the stability of the stencil when receiving forces in different directions is improved, and the torsional resistance of the stencil is enhanced.

[0012] The distances between two adjacent support portions are equal.

[0013] By setting the distances between two support portions to be equal, the equally spaced support portions can distribute the load received by the stencil more evenly, reduce the generation of local stress concentration, thereby improving the load-bearing capacity of the stencil for the force. At the same time, the equally spaced support portions simplify the installation process of the components for strengthening the stencil and improve the convenience of component installation.

[0014] Two adjacent support portions can also be arranged at unequal distances.

[0015] The included angle between the support portion and the stiffening portion can also be set as an acute angle.

[0016] The stiffening portion is a hard metal structural member.

[0017] The stiffening portion can be set as a steel structural member or a titanium alloy structural member, etc.

[0018] In a second aspect, the present utility model provides a stencil provided with the component for reinforcing the stencil.

[0019] By disposing the component for reinforcing the stencil on the stencil, the stiffness of the stencil can be improved, the ability of the stencil to resist torsion is enhanced, and further the service life of the stencil is increased.

[0020] The stencil includes mounting bars, and a plurality of printing holes are disposed on the mounting bars. The printing holes are arranged along the length direction of the mounting bars, and the central points of the plurality of printing holes are located on the same straight line. The mounting bars are correspondingly disposed with the component for reinforcing the stencil. The stencil is provided with 2 mounting bars, and the 2 mounting bars are arranged in parallel.

[0021] The stencil may also be provided with 3, 4 or the like mounting bars.

[0022] The mounting bar is a rigid metal structural member.

[0023] The mounting bar may be set as a steel structural member, a titanium alloy structural member or the like.

[0024] In a third aspect, the present utility model provides a printing device adopting the stencil.

[0025] By disposing the stencil in the printing device, the printing quality of the printing device can be improved.

[0026] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0027] 1. The present utility model provides a component for reinforcing a stencil. By providing a stiffening portion for connecting with one side where the printing holes of the stencil are located, the stiffening portion includes a plurality of support portions arranged at intervals. The stencil is provided with a plurality of printing holes, and the support portions are located between two adjacent printing holes, which can enhance the stiffness of the stencil and improve the stability of the stencil when stressed. At the same time, the stiffening portion can disperse the acting force received by the stencil, reduce the probability of stress concentration, and improve the reliability of the stencil. By arranging support portions on both sides of the printing holes respectively, the acting force received at the printing holes can be dispersed through the support portions, reducing the probability of stress concentration at the printing holes, and further reducing the occurrence of poor printing accuracy caused by the deformation of the structure at the printing holes during the printing operation. Through the above settings, the anti-deformation ability of the stencil is enhanced and the service life of the stencil is increased;

[0028] 2. The present utility model provides a stencil. By disposing the component for reinforcing the stencil on the stencil, the stiffness of the stencil can be improved, the ability of the stencil to resist torsion is enhanced, and further the service life of the stencil is increased.

[0029] 3. The present utility model provides a printing device, which can improve the printing quality of the printing device by providing the stencil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of the stencil provided in Embodiment 1 of the present utility model, which is provided with components for reinforcing the stencil.

[0031] Figure 2 It is an exploded view of the stencil provided in Embodiment 1 of the present utility model, which is provided with components for reinforcing the stencil.

[0032] Markings in the figure:

[0033] 1 - stiffening part, 2 - supporting part, 3 - mounting strip, 4 - stencil, 5 - printing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The present utility model will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.

[0035] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms of the orientation or position relationship indicated by "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the utility model product / device / equipment is usually used and placed. These terms of orientation or position relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0036] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in directions such as "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present utility model.

[0037] In addition, when expressions such as "first", "second", "third", etc. appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0038] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a plurality of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be more than 9.

[0039] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / limited, when terms such as "set", "installed", "connected", "coupled", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, screw connection, etc. Such a connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0040] Embodiment 1

[0041] As Figure 1-2 shown, this embodiment provides a component for strengthening a mesh plate, including a stiffening part 1. The stiffening part 1 is used to connect to the side where the printing holes 5 of the mesh plate 4 are located. The stiffening part 1 includes a plurality of support parts 2 arranged at intervals. The mesh plate 4 is provided with a plurality of printing holes 5, and the support parts 2 are located between two adjacent printing holes 5.

[0042] When using the stencil 4 for printing operations, the stencil 4 abuts against the printing substrate, and the printing substrate exerts a force on the stencil 4, causing the stencil 4 to tend to deform. By installing components for strengthening the stencil on the stencil 4, the stiffening portion 1 can disperse the force received by the stencil 4, reduce the probability of stress concentration, and improve the reliability of the stencil 4; when the stencil 4 abuts against the printing substrate, stress concentration is likely to occur at the printing holes 5, resulting in deformation of the structure at the printing holes 5. By arranging two adjacent support portions 2 on both sides of the printing hole 5 respectively, the force received at the printing hole 5 can be dispersed by the support portions 2, reducing the probability of stress concentration at the printing hole 5, and further reducing the occurrence of poor printing accuracy caused by deformation of the structure at the printing hole 5 during the printing operation. At the same time, the thicknesses of the stiffening portion 1 and the support portion 2 do not affect the thickness of the solderable material printed, and do not increase the thickness of the stencil 4 itself, so the printing effect is not affected. Through the above settings, the anti-deformation ability of the stencil 4 is enhanced, and the service life of the stencil 4 is improved.

[0043] The stiffening portion 1 is detachably connected to the stencil 4.

[0044] The support portion 2 is a support bar, the stiffening portion 1 is a stiffening bar, and the length direction of the support portion 2 is perpendicular to the length direction of the stiffening portion 1.

[0045] By arranging the length direction of the support portion 2 perpendicular to the length direction of the stiffening portion 1, the stability of the stencil 4 when receiving forces in different directions is improved, and the torsional resistance of the stencil 4 is enhanced.

[0046] The distances between two adjacent support portions 2 are equal.

[0047] By setting the distances between the two support portions 2 to be equal, the equally spaced support portions 2 can distribute the load received by the stencil 4 more evenly, reduce the generation of local stress concentration, thereby improving the load-bearing capacity of the stencil 4 for the force. At the same time, the equally spaced support portions 2 simplify the installation process of the components for strengthening the stencil 4 and improve the convenience of component installation.

[0048] The stiffening portion 1 is a steel structure member.

[0049] The stencil 4 includes mounting bars 3, and a plurality of the printing holes 5 are arranged on the mounting bars 3. The printing holes 5 are arranged along the length direction of the mounting bars 3, and the center points of the plurality of printing holes 5 are located on the same straight line. The mounting bars 3 are correspondingly arranged with the components for strengthening the stencil 4. The stencil 4 is provided with 2 mounting bars 3, and the 2 mounting bars 3 are arranged in parallel.

[0050] The mounting bars 3 are steel structure members.

[0051] Example 2

[0052] This embodiment provides a stencil provided with the component for strengthening the stencil.

[0053] Example 3

[0054] This embodiment provides a printing device using the stencil.

[0055] The foregoing are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A component for strengthening a mesh panel, characterized in that, It includes a stiffening part (1) which is used to connect to the side where the printing holes (5) of the screen plate are located. The stiffening part (1) includes a number of support parts (2) arranged at intervals. The screen plate is provided with a number of printing holes (5), and the support parts (2) are located between two adjacent printing holes (5).

2. A component for strengthening a mesh panel according to claim 1, characterized in that, The support part (2) is a support bar, the stiffening part (1) is a stiffening bar, and the length direction of the support part (2) is perpendicular to the length direction of the stiffening part (1).

3. A component for reinforcing a mesh panel according to claim 1, characterized in that, The stiffening part (1) is detachably connected to the screen plate.

4. A component for strengthening a mesh panel according to any one of claims 1 - 3, characterized in that, The distance between two adjacent support parts (2) is equal.

5. A component for reinforcing a mesh panel according to claim 4, characterized in that, The stiffening part (1) is a hard metal structural part.

6. A stencil, characterized in that, There is provided a component for reinforcing the screen plate as described in any one of claims 1 - 5.

7. A stencil according to claim 6, wherein The screen plate includes a mounting bar (3), a number of the printing holes (5) are arranged on the mounting bar (3), the printing holes (5) are arranged along the length direction of the mounting bar (3), the center points of a number of the printing holes (5) are located on the same straight line, and the mounting bar (3) is arranged corresponding to the component for reinforcing the screen plate.

8. A stencil according to claim 7, wherein, The screen plate is provided with 2 mounting bars (3), and the 2 mounting bars (3) are arranged in parallel.

9. A stencil according to claim 7, characterized in that, The mounting bar (3) is a hard metal structural part.

10. A printing device, characterized in that, There is adopted a screen plate as described in any one of claims 6 - 9.

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