CN220493249U - SMT ladder type steel mesh for positioning PCB - Google Patents
SMT ladder type steel mesh for positioning PCB Download PDFInfo
- Publication number
- CN220493249U CN220493249U CN202321777626.4U CN202321777626U CN220493249U CN 220493249 U CN220493249 U CN 220493249U CN 202321777626 U CN202321777626 U CN 202321777626U CN 220493249 U CN220493249 U CN 220493249U
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- CN
- China
- Prior art keywords
- steel mesh
- pcb
- smt
- adjusting screw
- pressing
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 21
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Screen Printers (AREA)
Abstract
The utility model discloses an SMT stepped steel mesh for positioning a PCB, which comprises a steel mesh main body and a mounting frame fixedly mounted on the periphery of the steel mesh main body, wherein two groups of fixing plates are arranged at the bottom end of the steel mesh main body, printing ports are formed in the surface of the steel mesh main body, pressing mechanisms are arranged at the fixing plates, each pressing mechanism comprises a pressing plate arranged at the bottom end of the steel mesh main body, the pressing plates have the function of pressing the PCB, and an adjusting screw is arranged at the top end of each pressing plate and has the function of adjusting the pressing plates. This SMT cascaded steel mesh that PCB was fixed a position will drive adjusting screw through rotating the rotating block and rotate in the inside of installation piece, and when rotating to promote the pressure strip of bottom downwardly moving, thereby can make the purpose that the pressure strip of both sides compress tightly the both sides of PCB board, can make the surface of PCB board carry out inseparable laminating effect with the lower surface of steel mesh main part, thereby improve the printing quality to the PCB board.
Description
Technical Field
The utility model relates to a steel mesh, in particular to an SMT stepped steel mesh for positioning a PCB, and belongs to the technical field of steel meshes.
Background
The steel mesh, namely the SMT template, is a special die for SMT. Its main function is to assist in the deposition of solder paste; the purpose is to transfer the accurate amount of solder paste to the accurate position on the empty PCB, so as to fix the PCB during printing;
the problem that the printing quality of a PCB is poor is very easy to occur in the fixed printing using process of the SMT stepped steel mesh for positioning the existing PCB;
the reason that such problem appears is that the SMT cascaded steel mesh that current PCB was fixed a position when using, usually all is with the PCB board that needs the printing at the bottom on steel mesh main part surface, fix the PCB board under the steel mesh printing mouth through location fixing device, through the top with printing solder paste whereabouts in steel mesh main part, make the solder paste flow into PCB board surface through the printing mouth, thereby can reach the purpose of printing, because in actual use, fixed establishment can only fix the side of location PCB board, lack the mechanism that compresses tightly the PCB board, make the surface of PCB board and the lower surface of steel mesh can not carry out fine laminating, when printing, make the solder paste permeate other positions of PCB board through the gap department between PCB board and the steel mesh easily, thereby influence the problem of PCB board printing quality.
Disclosure of Invention
The utility model aims to solve the problems and provide the SMT stepped steel mesh for positioning the PCB, which has the advantages of simple structure and strong practicability.
The utility model realizes the aim through the following technical scheme that the SMT stepped steel net for positioning the PCB comprises a steel net main body and a mounting frame fixedly mounted on the periphery of the steel net main body, wherein two groups of fixing plates are arranged at the bottom end of the steel net main body, printing ports are formed in the surface of the steel net main body, pressing mechanisms are arranged at the fixing plates, each pressing mechanism comprises a pressing plate arranged at the bottom end of the steel net main body, each pressing plate has the function of pressing the PCB, and an adjusting screw is arranged at the top end of each pressing plate and has the function of adjusting the corresponding pressing plate.
Preferably, one side of each of the two groups of fixing plates is fixedly provided with a mounting block, the mounting block is positioned in the middle of the fixing plate, and the bottom end of each of the compacting plates is provided with a rubber pad.
Preferably, the adjusting screw is in threaded connection with the inside of the installation block, and the bottom end of the adjusting screw penetrates through the lower surface of the installation block.
Preferably, the bottom of adjusting screw and closing plate fixed connection, the top of adjusting screw runs through the upper surface of installation piece.
Preferably, the top end of the adjusting screw is fixedly connected with a rotating block, and one ends of the two groups of fixing plates slide inside one side of the mounting frame.
Preferably, the installation box is fixedly connected inside the installation frame, and a bidirectional screw rod is rotated inside the installation box.
Preferably, a servo motor for driving the bidirectional screw rod to rotate is arranged on one side of the mounting frame.
Preferably, the two sides of the outer surface of the bidirectional screw rod are respectively provided with a driving block in a sliding mode, one sides of the two groups of driving blocks penetrate through the surface of the mounting box, and one sides of the two groups of driving blocks are fixedly connected with the other end surfaces of the two groups of fixing plates.
The beneficial effects of the utility model are as follows: through rotating the rotating block, the adjusting screw is driven to rotate in the installation block, and the compressing plate at the bottom is pushed to move downwards in the rotation process, so that the compressing plates at the two sides can compress the two sides of the PCB, the surface of the PCB and the lower surface of the steel mesh main body can be tightly attached, and the printing quality of the PCB is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the bottom end of the steel mesh body of the present utility model;
FIG. 3 is a schematic view of the bottom end explosion structure of the steel mesh body of the present utility model;
fig. 4 is a schematic diagram of a portion a of fig. 3 according to the present utility model.
In the figure: 1. a steel mesh body; 101. a mounting frame; 102. a printing port; 2. a mounting box; 201. a servo motor; 202. a bidirectional screw; 203. a driving block; 3. a fixing plate; 4. a compressing mechanism; 401. a compacting plate; 402. adjusting a screw; 403. a rotating block; 404. a mounting block; 405. and a rubber pad.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the utility model discloses an SMT stepped steel mesh for positioning a PCB, as shown in fig. 1-4, the SMT stepped steel mesh comprises a steel mesh main body 1 and a mounting frame 101 fixedly mounted at the periphery of the steel mesh main body 1, wherein the mounting frame 101 is used for mounting the steel mesh main body 1, two groups of fixing plates 3 are arranged at the bottom end of the steel mesh main body 1, a printing opening 102 is formed in the surface of the steel mesh main body 1, a pressing mechanism 4 is arranged at the fixing plates 3, the pressing mechanism 4 is convenient for tightly adhering the surface of the PCB to the lower surface of the steel mesh main body 1, the pressing mechanism 4 is convenient for printing the PCB, the pressing mechanism 4 comprises a pressing plate 401 arranged at the bottom end of the steel mesh main body 1, the pressing plate 401 has the function of pressing the PCB, an adjusting screw 402 is arranged at the top end of the pressing plate 401, the adjusting screw 402 has the function of adjusting the pressing plate 401, and when the PCB to be processed is placed between the two groups of fixing plates 3, and the two groups of driving blocks 203 are respectively driven by starting a servo motor 201 to be close to each other by the two groups of driving blocks 203, so that the purpose of fixing the PCB between the fixing plates 3 at two sides can be fixed.
One side fixed mounting of two sets of fixed plates 3 has installation piece 404, installation piece 404 is located the middle part position of fixed plate 3, rubber pad 405 is installed to the bottom of pressure strip 401, rubber pad 405's setting can prevent that pressure strip 401 from causing the circumstances of wearing and tearing to the surface of PCB board, adjusting screw 402 threaded connection is in the inside of installation piece 404, adjusting screw 402's bottom and the lower surface that runs through installation piece 404, through rotating piece 403, will drive adjusting screw 402 and rotate in the inside of installation piece 404, the pivoted is simultaneously, and promote the pressure strip 401 of bottom and move down, thereby the purpose that can make the pressure strip 401 of both sides compress tightly the both sides of PCB board can make the surface of PCB board carry out inseparable laminating effect with the lower surface of steel mesh main part 1.
The bottom and the pressure strip 401 fixed connection of adjusting screw 402, the upper surface of installation piece 404 is run through on the top of adjusting screw 402, and the top fixedly connected with dwang 403 of adjusting screw 402, dwang 403 can drive adjusting screw 402 rotation in the inside of installation piece 404, and the one end of two sets of fixed plates 3 slides inside installing frame 101 one side.
The inside fixedly connected with installation box 2 of installing frame 101, installation box 2 is used for carrying out the installation to bi-directional screw 202 and drive piece 203, the inside rotation of installation box 2 has bi-directional screw 202, one side of installing frame 101 is provided with the servo motor 201 that drives bi-directional screw 202 pivoted, the surface both sides of bi-directional screw 202 all slide and have drive piece 203, the rotation of bi-directional screw 202 will drive the drive piece 203 of both sides and be close to each other, thereby can fix the PCB board between two sets of fixed plates 3 under steel mesh main part 1, the surface of installation box 2 is all run through to one side of two sets of drive pieces 203, one side of two sets of drive pieces 203 all is connected with the other end surface fixing of two sets of fixed plates 3.
For those skilled in the art, through rotating the rotating block 403, the adjusting screw 402 is driven to rotate in the installation block 404, and the compressing plate 401 at the bottom is pushed to move downwards while rotating, so that the compressing plates 401 at two sides can compress two sides of the PCB, and the surface of the PCB and the lower surface of the steel mesh main body 1 can be tightly attached, thereby improving the printing quality of the PCB.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a SMT ladder type steel mesh for positioning of PCB, includes steel mesh main part (1) and fixed mounting at steel mesh main part (1) peripheral installing frame (101), the bottom of steel mesh main part (1) is provided with two sets of fixed plates (3), printing mouth (102) have been seted up on the surface of steel mesh main part (1);
the method is characterized in that; the fixing plate (3) is provided with a pressing mechanism (4), the pressing mechanism (4) comprises a pressing plate (401) arranged at the bottom end of the steel mesh main body (1), the pressing plate (401) has the function of pressing a PCB, the top end of the pressing plate (401) is provided with an adjusting screw (402), and the adjusting screw (402) has the function of adjusting the pressing plate (401).
2. An SMT stepped steel mesh for PCB positioning according to claim 1, wherein: one side of each of the two groups of fixing plates (3) is fixedly provided with a mounting block (404), the mounting blocks (404) are located in the middle of the fixing plates (3), and the bottom ends of the compacting plates (401) are provided with rubber pads (405).
3. An SMT stepped steel mesh for PCB positioning according to claim 1, wherein: the adjusting screw (402) is in threaded connection with the inside of the mounting block (404), and the bottom end of the adjusting screw (402) penetrates through the lower surface of the mounting block (404).
4. A SMT stepped steel mesh for PCB positioning according to claim 3, wherein: the bottom end of the adjusting screw rod (402) is fixedly connected with the pressing plate (401), and the top end of the adjusting screw rod (402) penetrates through the upper surface of the mounting block (404).
5. A SMT stepped steel mesh for PCB positioning according to claim 3, wherein: the top end of the adjusting screw rod (402) is fixedly connected with a rotating block (403), and one ends of the two groups of fixing plates (3) slide inside one side of the mounting frame (101).
6. An SMT stepped steel mesh for PCB positioning according to claim 5, wherein: the mounting box (2) is fixedly connected inside the mounting frame (101), and a bidirectional screw (202) is rotated inside the mounting box (2).
7. The SMT stepped steel mesh for PCB positioning of claim 6, wherein: one side of the mounting frame (101) is provided with a servo motor (201) for driving the bidirectional screw rod (202) to rotate.
8. The SMT stepped steel mesh for PCB positioning of claim 7, wherein: the two sides of the outer surface of the bidirectional screw rod (202) are respectively provided with a driving block (203), one sides of the two groups of driving blocks (203) respectively penetrate through the surface of the mounting box (2), and one sides of the two groups of driving blocks (203) are respectively fixedly connected with the other end surfaces of the two groups of fixing plates (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321777626.4U CN220493249U (en) | 2023-07-06 | 2023-07-06 | SMT ladder type steel mesh for positioning PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321777626.4U CN220493249U (en) | 2023-07-06 | 2023-07-06 | SMT ladder type steel mesh for positioning PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220493249U true CN220493249U (en) | 2024-02-13 |
Family
ID=89826256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321777626.4U Active CN220493249U (en) | 2023-07-06 | 2023-07-06 | SMT ladder type steel mesh for positioning PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220493249U (en) |
-
2023
- 2023-07-06 CN CN202321777626.4U patent/CN220493249U/en active Active
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| GR01 | Patent grant |