Screen printing processing device
By designing a silk screen processing device including a base structure, a fixed table structure and a silk screen structure, the problems of bubbles, uneven thickness and unbeautifulness that often occur in the early stage of sample research and development of hand-made silk screen printing are solved, and the effect of precisely controlling the thickness of silk screen and improving the aesthetics of silk screen is achieved.
Patent Information
- Application Number
- CN202421780045.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-25
AI Technical Summary
Hand-made silk screen printing often presents bubbles, uneven thickness and unbeautiful specimens in the early stages of sample research and development of electronic components industry.
A silk screen processing device is designed, including a base structure, a fixed table structure and a silk screen structure. The balanced structure maintains the preset height above the fixed table structure, and accurately controls the screen printing height to avoid problems caused by manual misoperation.
This device can accurately control the thickness of the screen printing, avoid the problems of bubbles and uneven thickness, and improve the aesthetics and convenience of the screen printing.
Smart Images
Figure CN222972972U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of resistors, in particular to a screen printing processing device. Background Art
[0002] Screen printing, namely silk screen printing, is a printing method through a silk screen template. A screen printing processing device is a device that leaks solder paste or patch glue onto a PCB pad through a silk screen. Currently, alloy chip resistors (especially those with a thickness below 1 mm) basically use a plastic encapsulation process. According to the different screen printing thicknesses, it is divided into die plastic encapsulation and screen printing (die plastic encapsulation is used for thicknesses above 50 um, and screen printing is used for thicknesses below 50 um). In the electronic component industry, in the early R & D stage, usually to save R & D costs, manual sample preparation is usually required in the initial stage of sample R & D. Especially for alloy sampling resistors with plastic encapsulation, the screen printing process is often used, and problems such as bubbles, uneven thickness, and unattractive screen printing will occur in manual screen printing.
[0003] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is prior art. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide a screen printing processing device, aiming to solve the problems of bubbles, uneven thickness, and unattractive screen printing in manual screen printing.
[0005] To achieve the above purpose, the utility model provides a screen printing processing device, which includes:
[0006] A base structure, including a base and a fixing frame installed on the base;
[0007] A fixing table structure, arranged on the upper surface of the base and used for fixing the product to be screen printed; and,
[0008] A screen printing steel mesh structure, installed on the fixing frame, and maintained at a preset height above the fixing table structure through the balance structure.
[0009] Preferably, in the screen printing processing device, the balance structure includes:
[0010] A rotating part, having a rotation fulcrum, the rotating part is rotatably and fixedly arranged between the rotation fulcrum and the fixing frame, the rotating part has a fixed end and a balance end respectively located on both sides of the rotation fulcrum, and the fixed end is fixedly arranged with the screen printing steel mesh structure;
[0011] A balance pressing part, movably arranged at the balance end, and the balance pressing part is balanced with the screen printing steel mesh structure relative to the rotation fulcrum.
[0012] Preferably, in the screen printing processing device, the rotating part is a balance bar;
[0013] The balance pressing part is movably arranged along the length direction of the balance bar.
[0014] Preferably, in the screen printing processing device, a negative pressure is formed on the upper surface of the fixed table structure to adsorb the product to be screen printed on the fixed table structure.
[0015] Preferably, in the screen printing processing device, the fixed table structure includes:
[0016] A cavity structure having an adsorption cavity with an opening at the upper side; and,
[0017] An adsorption plate provided with a plurality of adsorption holes, the plurality of adsorption holes being uniformly arranged, the adsorption plate covering the opening of the adsorption cavity and the plurality of adsorption holes communicating with the adsorption cavity;
[0018] The screen printing processing device further includes a suction device communicating with the adsorption cavity for sucking the adsorption cavity to form a negative pressure.
[0019] Preferably, in the screen printing processing device, a plurality of communication holes penetrate through the side part of the adsorption cavity, and the plurality of communication holes are connected to the suction device.
[0020] Preferably, in the screen printing processing device, the fixed frame includes:
[0021] A vertical support frame extending vertically, the bottom of the vertical support frame being installed on the base; and,
[0022] A horizontal support rod rotatably arranged at the top of the vertical support frame and extending horizontally;
[0023] The rotating part includes:
[0024] A rotating rod, one end of which is fixed on the horizontal support rod and cannot move relative to the horizontal support rod, and the other end is installed with the balance pressing part;
[0025] A support member installed on the side of the horizontal support rod opposite to the rotating rod and not moving relative to the horizontal support rod, and the screen printing steel mesh structure is fixed on the support member.
[0026] Preferably, in the screen printing processing device, the support member includes an installation lug sleeved on the horizontal support rod and an installation groove body connected to the installation lug, and the notch direction of the installation groove body faces away from the direction of the rotating rod;
[0027] The screen printing steel mesh structure is installed in the notch of the installation groove body.
[0028] Preferably, in the screen printing processing device, the height of the screen printing stencil structure can be adjusted vertically.
[0029] Preferably, in the screen printing processing device, a right-angled boss for the product to be screen-printed to abut against is provided on the fixed table structure.
[0030] The utility model has at least the following beneficial effects:
[0031] The screen printing processing device provided by the utility model includes a base structure, a fixed table structure, and a screen printing stencil structure. The base structure includes a base and a fixed frame installed on the base; the fixed table structure is arranged on the upper surface of the base and is used for fixing the product to be screen-printed; the screen printing stencil structure is installed on the fixed frame and is maintained at a preset height above the fixed table structure through the balance structure. In this way, the height of the screen printing stencil structure can be accurately controlled, avoiding problems such as bubbles, uneven thickness, and unattractive screen printing that may occur in manual screen printing, and the convenience is stronger. Description of the Drawings
[0032] Figure 1 is a perspective view of an embodiment of the screen printing processing device provided by the utility model;
[0033] Figure 2 is Figure 1 the exploded schematic view in
[0034] Figure 3 is Figure 1 the schematic view of the fixed table structure in
[0035] Figure 4 is Figure 3 the exploded schematic view in
[0036] Serial number Name Serial number Name 1 Base structure 22 Adsorption plate 11 Base 221 Adsorption hole 12 Fixing bracket 3 Silk screen stencil structure 121 Vertical support frame 4 Balancing structure 122 Horizontal support rod 41 Rotating part 2 Fixed table structure 411 Rotating rod 21 Cavity structure 412 Supporting part 211 Opening 4121 Mounting lug 212 Adsorption cavity 4122 Mounting groove 213 Communication hole 42 Balancing pressure part
[0037] The realization of the purpose, functional characteristics, and advantages of the utility model will be further described with reference to the embodiments and the drawings. Detailed Embodiments
[0038] The technical solutions of the utility model will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. The utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments. It should be noted that, without conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.
[0039] In the embodiments of the present utility model, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.
[0040] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.
[0041] In the embodiments of the present utility model, the term "a plurality of" refers to two or more, and other quantifiers are similar.
[0042] In the present utility model, unless otherwise stated, the orientation terms such as "up", "down", "top", "bottom" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction of the component itself; similarly, for the convenience of understanding and description, "inside" and "outside" refer to the inside and outside of the contour of each component itself, but the above orientation terms do not limit the present utility model.
[0043] To solve the above problems, this embodiment relates to a screen printing processing device. Please refer to Figure 1 and Figure 2 , and the screen printing processing device includes a base structure 1, a fixed table structure 2, and a screen printing stencil structure 3.
[0044] Among them, the base structure 1 is used to hold or fix other components. The base structure 1 includes a base 11 and a fixing frame 12 installed on the base 11. The base 11 can directly place the product to be screen printed or indirectly place the product to be screen printed. For example, after fixing the product to be screen printed through a mounting table that facilitates fixing the product to be screen printed, the mounting table is placed on the base 11.
[0045] In this embodiment, the product to be screen printed is fixed by the fixed table structure 2. Specifically, the fixed table structure 2 is provided on the upper surface of the base 11 and is used to fix the product to be screen printed. After the product to be screen printed is placed on the fixed table structure 2, a conventional method that can achieve the fixation of the product to be screen printed can be adopted. In this embodiment, negative pressure is usually used to adsorb the product to be screen printed on the upper surface of the fixed table structure 2, so that the structure of the product to be screen printed can be protected from damage, and at the same time, it does not affect the convenience of operation during screen printing.
[0046] Unevenness of the product will cause uneven screen printing thickness and screen printing omission. In this embodiment, negative pressure is formed on the upper surface of the fixed table structure 2 to adsorb the product to be screen printed on the fixed table structure 2, so that the product to be screen printed is kept flat. Specifically, please refer to Figure 3 and Figure 4, the fixed table structure 2 includes a cavity structure 21 and an adsorption plate 22. The cavity structure 21 has an adsorption cavity 212 with an upper opening 211; a plurality of adsorption holes 221 are provided on the adsorption plate 22, and the plurality of adsorption holes 221 are arranged uniformly. The adsorption plate 22 covers the opening 211 of the adsorption cavity 212 and the plurality of adsorption holes 221 communicate with the adsorption cavity 212; the screen printing device further includes a suction device, which communicates with the adsorption cavity 212 and is used to form a negative pressure by sucking the adsorption cavity 212. The suction device can be but is not limited to a vacuum pump, as long as it is a device that can pump air. The suction device is connected to the adsorption cavity 212 through a trachea, and the adsorption cavity 212 is pumped to form a negative pressure in the adsorption holes 221 communicating with the adsorption cavity 212, so as to adsorb the workpiece to be screen-printed on the upper surface of the fixed table structure 2. More specifically, a plurality of communication holes 213 penetrate through the side of the adsorption cavity 212, and the plurality of communication holes 213 are connected to the suction device. The plurality of communication holes 213 are connected to the suction device through a trachea. Generally, the negative pressure formed on the upper surface of the fixed table structure 2 is about 0.6 Mpa.
[0047] The screen printing stencil structure 3 is installed on the fixed frame 12 and is maintained at a preset height above the fixed table structure 2 through the balance structure 4. When screen printing is required for the workpiece to be screen-printed, first lift the screen printing stencil structure 3 to facilitate the placement of the workpiece to be screen-printed; the workpiece to be screen-printed is placed on the upper surface of the fixed table structure 2, and the fixed table structure 2 fixes the workpiece to be screen-printed; at this time, release the screen printing stencil structure 3, and the screen printing stencil structure 3 is maintained at a preset height above the fixed table structure 2 under the action of the balance structure 4; at this time, gently push the ink with a squeegee to complete the screen printing. It should be noted that generally, when the workpiece to be screen-printed is placed on the upper surface of the fixed table structure 2 and the screen printing stencil structure 3 is at a preset height above the fixed table structure 2, the screen printing stencil structure 3 just contacts the workpiece to be screen-printed, that is, the preset height above the fixed table structure 2 is the thickness of the workpiece to be screen-printed.
[0048] The screen printing device provided by the present utility model includes a base structure 1, a fixed table structure 2, and a screen printing stencil structure 3. The base structure 1 includes a base 11 and a fixed frame 12 installed on the base 11; the fixed table structure 2 is arranged on the upper surface of the base 11 and is used to fix the workpiece to be screen-printed; the screen printing stencil structure 3 is installed on the fixed frame 12 and is maintained at a preset height above the fixed table structure 2 through the balance structure 4, so that the height of the screen printing stencil structure 3 can be accurately controlled, avoiding problems such as bubbles, uneven thickness, and unsightly screen printing that may occur in manual screen printing, and the convenience is stronger.
[0049] In addition, in order to facilitate the fixation of the product to be screen-printed, some positioning structures, such as right-angled bosses, can also be provided on the fixing table structure 2. When the product to be screen-printed is placed on the fixing table structure 2 and abuts against the right-angled boss, it is convenient to fix the product to be screen-printed more precisely.
[0050] The setting form of the balance structure 4 can also be various, as long as it can maintain the screen printing stencil structure 3 at a preset height above the fixing table structure 2. When the screen printing stencil structure 3 is lifted and then released, the screen printing stencil structure 3 can return to the preset height above the fixing table structure 2 under the action of the balance structure 4.
[0051] In order to improve the accuracy of screen printing, it is necessary to accurately control the height of the screen printing stencil structure 3 above the fixing table structure 2. In this embodiment, the balance structure 4 includes a rotating part 41 and a balance pressing part 42. The rotating part 41 has a rotation fulcrum. The rotating part 41 is rotatably and fixedly arranged on the fixing frame 12 at the rotation fulcrum. The rotating part 41 has a fixed end and a balance end located on both sides of the rotation fulcrum respectively. The fixed end is fixedly arranged with the screen printing stencil structure 3; the balance pressing part 42 is movably arranged at the balance end, and the balance pressing part 42 and the screen printing stencil structure 3 are arranged to be balanced relative to the rotation fulcrum. By adjusting the position of the balance pressing part 42, it can be adjusted to make the balance pressing part 42 and the screen printing stencil structure 3 maintain balance at both ends relative to the rotation fulcrum, so that the screen printing stencil structure 3 can be accurately maintained at the set height.
[0052] There may be some differences in the weights corresponding to different screen printing stencil structures 3. By setting the balance pressing part 42 to be adjustable, it can be ensured that even if different screen printing stencil structures 3 are replaced, a new balance can be maintained, making the overall adaptability of the device stronger. More specifically, the rotating part 41 is a balance rod; the balance pressing part 42 can be movably arranged along the length direction of the balance rod. The balance pressing part 42 is usually a pressing block, and the balance can be re-adjusted by adjusting the pressing block along the length direction of the balance rod.
[0053] The fixing frame 12 includes a vertical support frame 121 and a horizontal support rod 122. The vertical support frame 121 extends vertically, and the bottom of the vertical support frame 121 is installed on the base 11; the horizontal support rod 122 is rotatably arranged at the top of the vertical support frame 121 and extends horizontally; the rotating part 41 includes a rotating rod 411 and a support member 412. One end of the rotating rod 411 is fixed on the horizontal support rod 122 and cannot move relative to the horizontal support rod 122, and the other end is installed with the balance pressing part 42; the support member 412 is installed on the side of the horizontal support rod 122 opposite to the rotating rod 411 and does not move relative to the horizontal support rod 122, and the screen printing stencil structure 3 is fixed on the support member 412.
[0054] When the screen printing stencil structure 3 on the support member 412 is lifted upward, since the support member 412 cannot move relative to the transverse support rod 122, the transverse support rod 122 will move upward following the screen printing stencil structure 3 at this time; and since the rotating rod 411 cannot have relative displacement with the transverse support rod 122, the rotating rod 411 will also move following at this time. When the screen printing stencil structure 3 is released, under the action of the balance pressing portion 42, the rotating rod 411 will drive the transverse support rod 122 to move in the reverse direction, the transverse support rod 122 drives the screen printing stencil structure 3 to move in the reverse direction, and returns to its original position. Compared with the solution using a spring, the solution adopting the balance structure 4 is more precise.
[0055] More specifically, the support member 412 includes an installation lug 4121 sleeved on the transverse support rod 122 and an installation groove body 4122 connected to the installation lug 4121, and the notch direction of the installation groove body 4122 faces away from the rotating rod 411; the screen printing stencil structure 3 is installed in the notch of the installation groove body 4122. Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, those of ordinary skill in the art can make other different forms of changes or modifications without making creative efforts, and all of them should fall within the protection scope of the present invention.
Claims
1. A screen printing device, characterized in that: include: A base structure, comprising a base and a fixing frame mounted on the base; A fixed platform structure, disposed on the upper surface of the base and used to fix the product to be screen-printed; as well as, The screen printing steel mesh structure is installed on the fixing frame and is maintained at a preset height above the fixing platform structure by a balancing structure.
2. The screen printing device according to claim 1, characterized in that: The balancing structure comprises: A rotating part, having a rotating fulcrum, the rotating part is rotatably fixed to the fixed frame at the rotating fulcrum, the rotating part has a fixed end and a balancing end respectively located on both sides of the rotating fulcrum, and the fixed end is fixedly arranged with the screen printing steel mesh structure; A balancing pressing part is movably arranged at the balancing end, and the balancing pressing part and the screen printing steel mesh structure are arranged to maintain a balanced arrangement relative to the rotation fulcrum.
3. The screen printing processing device according to claim 2, characterized in that: The rotating part is a balance bar; The balancing pressure portion can be movably arranged along the length direction of the balancing rod.
4. The screen printing processing device according to claim 3, characterized in that: A negative pressure is formed on the upper surface of the fixing platform structure to adsorb the product to be screen-printed onto the fixing platform structure.
5. The screen printing processing device according to claim 4, characterized in that: The fixed platform structure comprises: A cavity structure having an adsorption cavity with an upper opening; and An adsorption plate, wherein a plurality of adsorption holes are arranged evenly on the adsorption plate, the adsorption plate cover is arranged on the opening of the adsorption cavity and the plurality of adsorption holes are in communication with the adsorption cavity; The screen printing processing device also includes a suction device, which is connected to the adsorption chamber and is used to suck the adsorption chamber to form a negative pressure.
6. The screen printing processing device according to claim 5, characterized in that: A plurality of communication holes are formed through the side of the adsorption chamber, and the plurality of communication holes are connected to the suction device.
7. The screen printing processing device according to claim 2, characterized in that: The fixing frame comprises: A vertical support frame is vertically extended, and the bottom of the vertical support frame is mounted on the base; and A transverse support rod, rotatably disposed on the top of the vertical support frame and extending in the transverse direction; The rotating part comprises: A rotating rod, one end of which is fixed on the transverse support rod and cannot move relative to the transverse support rod, and the other end of which is provided with the balancing pressure part; The support member is installed on the side of the transverse support rod opposite to the rotating rod and does not move relative to the transverse support rod. The silk screen steel mesh structure is fixed on the support member.
8. The screen printing processing device according to claim 7, characterized in that: The support member comprises a mounting lug sleeved on the transverse support rod, and a mounting slot body connected to the mounting lug, wherein the notch of the mounting slot body faces a direction away from the rotating rod; The silk-screen steel mesh structure is installed in the slot of the installation slot body.
9. The screen printing processing device according to claim 1, characterized in that: The screen printing steel mesh structure can be adjusted in height vertically.
10. The screen printing processing device according to claim 1, characterized in that: The fixing platform structure is provided with a right-angle boss for the product to be screen-printed to abut against.