Steel mesh rapid positioning device and solder paste printing machine

Abstract

The utility model belongs to the technical field of automatic processing, and particularly relates to a steel mesh rapid positioning device and a solder paste printing machine. The steel mesh rapid positioning device comprises two guide rail assemblies which are distributed at intervals. The guide rail assembly comprises a supporting guide rail, a supporting seat, a positioning rod and a positioning driving part installed on the supporting seat, a supporting plate and a sliding groove are formed in the two opposite ends of the supporting guide rail respectively, and the supporting plate and the sliding groove extend in the length direction of the supporting guide rail; the supporting seat is installed in the sliding groove. The output end of the positioning driving piece is connected with the positioning rod and used for driving the positioning rod to press the steel mesh on the supporting plate. According to the guide rail assembly, the positions, installed in the sliding grooves, of the supporting seats are adjusted so that the different positions, installed on the supporting guide rail, of the positioning driving pieces can be adjusted, steel meshes of different sizes can be supported and positioned through the guide rail assembly, and the number of the positioning driving pieces on the supporting guide rail is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automated processing, in particular to a steel mesh rapid positioning device and a solder paste printer. Background Art

[0002] With the increasing sophistication and miniaturization of electronic products, the production of printed circuit boards (PCBs) is now being performed by SMT (Surface Mount Technology) equipment. Solder paste printing is a crucial step in the SMT manufacturing process, and this process is performed by a solder paste printer. A solder paste printer applies solder paste from a stencil to the printed circuit board (PCB). This printed surface facilitates the secure mounting of electrical components on the PCB.

[0003] A solder paste printer consists of a support rail and a scraper. The rail supports a stencil, and the scraper moves across the stencil's surface, applying solder paste to the circuit board beneath it. Prior art systems employ multiple positioning cylinders spaced apart on the rail to position stencils of varying sizes on the rail. However, this design increases the manufacturing cost of the solder paste printer. Summary of the Invention

[0004] The utility model solves the technical problem in the prior art that a plurality of positioning cylinders need to be arranged on the supporting guide rails of the solder paste printer, and provides a steel mesh rapid positioning device and a solder paste printer.

[0005] In view of the above problems, an embodiment of the present invention provides a steel mesh rapid positioning device, comprising two guide rail assemblies spaced apart; the guide rail assembly comprises a support rail, a support seat, a positioning rod, and a positioning drive member mounted on the support seat, wherein opposite ends of the support rail are respectively provided with a support plate and a slide groove, and the support plate and the slide groove both extend along the length direction of the support rail;

[0006] The support seat is installed in the slide groove; the output end of the positioning drive is connected to the positioning rod and is used to drive the positioning rod to press the steel mesh onto the support plate.

[0007] Optionally, the support seat includes a mounting plate and an adjustment guide rail mounted on the mounting plate, the positioning drive component is mounted on the mounting plate, and the adjustment guide rail is mounted in the slide groove.

[0008] Optionally, the mounting plate is provided with a first through hole, and the adjustment rail is provided with a second through hole communicating with the first through hole; the support seat further comprises a fastener inserted into the first through hole and the second through hole;

[0009] The fastener abuts against the inner wall of the slide groove to fix the adjustment guide rail in the slide groove.

[0010] Optionally, the steel mesh rapid positioning device further comprises an adjustment component for adjusting the distance between the two support rails;

[0011] The adjustment assembly includes a guide rod and two fixing members, and the opposite ends of the guide rod are respectively installed on the two support rails; the fixing members are installed on the support rails in a one-to-one correspondence and are used to fix the guide rod on the support rails.

[0012] Optionally, the fixing member includes a first bearing, a second bearing, a support block, a fixed driving member, and a fixed block; the support block is mounted on the support guide rail and is provided with a third through hole, the first bearing and the second bearing are installed in the third through hole with an interval, and the guide rod passes through the inner holes of the first bearing and the second bearing;

[0013] The fixed driving member is installed on the supporting block and connected to the fixed block, and is used to drive the fixed block to press the guide rod between the first bearing and the second bearing.

[0014] Optionally, a pressing groove adapted to the guide rod is provided at one end of the fixing block away from the fixed driving member, and the fixing block presses the guide rod between the first bearing and the second bearing through the pressing groove.

[0015] Another embodiment of the present invention also provides a solder paste printer, including a support frame, a movable module, a scraper assembly and the above-mentioned steel mesh quick positioning device; the movable module and the support guide rail are both installed on the support frame, the scraper assembly is installed on the movable module, and the movable module is used to drive the scraper assembly to move along the length direction of the support guide rail.

[0016] Optionally, the solder paste printer further comprises a push rod assembly, wherein the push rod assembly comprises a lifting drive member mounted on the scraper assembly and a push rod mounted at an output end of the lifting drive member;

[0017] The moving module is also used to drive the steel mesh to move along the supporting guide rail through the push rod assembly.

[0018] In the present invention, support plates and slides are provided at opposite ends of the support rail, each extending along the length of the support rail. The support seat is mounted within the slides. The output end of the positioning driver is connected to the positioning rod and is used to drive the rod to press the steel mesh against the support plate. Adjusting the position of the support seat within the slides allows the positioning driver to be adjusted to different positions on the support rail. This allows the rail assembly to support and position steel meshes of varying sizes, reducing the number of positioning drivers on the support rail and lowering the manufacturing cost of the steel mesh rapid positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 A schematic structural diagram of a steel mesh rapid positioning device provided by an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0022] Figure 3 A schematic diagram of a portion of the structure of a steel mesh rapid positioning device provided by one embodiment of the present utility model;

[0023] Figure 4 This is a partial cross-sectional view of an adjustment assembly of a steel mesh rapid positioning device provided by one embodiment of the present utility model;

[0024] Figure 5 A schematic structural diagram of a solder paste printer provided in one embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a solder paste printer push rod assembly installed on a scraper assembly provided in one embodiment of the present invention.

[0026] The reference numerals in the specification are as follows:

[0027] 1. Guide rail assembly; 11. Support guide rail; 111. Support plate; 112. Slide groove; 12. Support seat; 121. Mounting plate; 122. Adjustment rail; 13. Positioning rod; 14. Positioning drive; 2. Adjustment assembly; 21. Guide rod; 22. Fixing member; 221. First bearing; 222. Second bearing; 223. Support block; 224. Fixed drive; 225. Fixed block; 3. Support frame; 4. Moving module; 5. Scraper assembly; 6. Push rod assembly; 61. Lifting drive; 62. Push rod. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a steel mesh rapid positioning device, comprising two guide rail assemblies 1 distributed at intervals; the guide rail assembly 1 comprises a support rail 11, a support seat 12, a positioning rod 13 and a positioning drive 14 installed on the support seat 12, and the opposite ends of the support rail 11 are respectively provided with a support plate 111 and a slide groove 112, and the support plate 111 and the slide groove 112 both extend along the length direction of the support rail 11; it can be understood that the support plate 111 is arranged at the bottom of the support rail 11 and protrudes toward the side, and the slide groove 112 is arranged at the top of the support rail 11; the positioning drive 14 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder, a linear motor, etc.; the two support plates 111 can play the role of supporting the steel mesh from the left and right ends.

[0031] The support seat 12 is installed in the slide groove 112; the output end of the positioning drive 14 is connected to the positioning rod 13 and is used to drive the positioning rod 13 to press the steel mesh (not shown in the figure) against the support plate 111. It can be understood that the positioning rod 13 is located above the support plate 111. Specifically, after the steel mesh moves into position on the support plate 111, the positioning drive 14 drives the positioning rod 13 toward the support plate 111 until the positioning rod 13 presses the steel mesh against the support plate 111. This ensures that the steel mesh will not move on the support plate 111 during the process of the scraper assembly 5 brushing the solder paste on the steel mesh onto the circuit board.

[0032] In the present invention, a support plate 111 and a slide groove 112 are respectively provided at opposite ends of the support rail 11. Both the support plate 111 and the slide groove 112 extend along the length of the support rail 11. The support seat 12 is mounted in the slide groove 112. The output end of the positioning driver 14 is connected to the positioning rod 13 and is used to drive the positioning rod 13 to press the steel mesh against the support plate 111. By adjusting the position of the support seat 12 installed in the slide groove 112, the positioning driver 14 can be adjusted to different positions on the support rail 11. This allows the guide rail assembly 1 to support and position steel meshes of different sizes, reduces the number of positioning drivers 14 on the support rail 11, and reduces the manufacturing cost of the steel mesh rapid positioning device.

[0033] In one embodiment, if Figures 1 to 3 As shown, the support base 12 includes a mounting plate 121 and an adjustment rail 122 mounted on the mounting plate 121. The positioning drive 14 is mounted on the mounting plate 121, and the adjustment rail 122 is mounted in the slide 112. Preferably, the adjustment rail 122 is a T-shaped rail, and the slide 112 is a T-shaped groove. In this embodiment, the adjustment rail 122 can slide in the slide 112, thereby adjusting the support base 12 to different positions within the slide 112. The position adjustment of the support base 12 on the support rail 11 is simple and easy.

[0034] In one embodiment, the mounting plate 121 is provided with a first through-hole, and the adjustment rail 122 is provided with a second through-hole communicating with the first through-hole. The support base 12 further includes fasteners (not shown) inserted into the first and second through-holes. The fasteners abut against the inner wall of the slide groove 112 to secure the adjustment rail 122 in the slide groove 112. It is understood that the fasteners include, but are not limited to, screws, bolts, and the like.

[0035] Specifically, loosen the fastener, and then slide the support seat 12 along the slide groove 112. When the position adjustment of the support seat 12 on the support guide rail 11 is completed, tighten the fastener until the fastener presses the inner wall of the slide groove 112, so that the fastener can fix the mounting plate 121 and the adjustment guide rail 122 on the support guide rail 11, ensuring the stability of the positioning drive 14 installed on the support guide rail 11.

[0036] In one embodiment, if Figure 1 As shown, the steel mesh rapid positioning device further includes an adjustment component 2 for adjusting the distance between the two support rails 11;

[0037] The adjustment assembly 2 includes a guide rod 21 and two fixing members 22. The opposite ends of the guide rod 21 are respectively mounted on the two support rails 11. The fixing members 22 are mounted on the support rails 11 in a one-to-one correspondence and are used to secure the guide rod 21 to the support rails 11. It is understood that the guide rod 21 can serve as a guide when the two support rails 11 move toward or away from each other, ensuring the stability of the two support rails 11 during movement. When the position adjustment between the two support rails 11 is completed, the fixing members 22 press the support rod 21, preventing the support rails 11 from moving further along the guide rod 21.

[0038] In one embodiment, if Figure 1 and Figure 4 As shown, the fixing member 22 includes a first bearing 221, a second bearing 222, a support block 223, a fixed driving member 224 and a fixed block 225; the support block 223 is installed on the support guide rail 11 and is provided with a third through hole, the first bearing 221 and the second bearing 222 are installed in the third through hole at intervals, and the guide rod 21 passes through the inner holes of the first bearing 221 and the second bearing 222; it can be understood that the first bearing 221 and the second bearing 222 are respectively installed at the openings at both ends of the third through hole, the first bearing 221 and the second bearing 222 are both sleeved on the guide rod 21 and located in the third through hole; the fixed driving member 224 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder and a linear motor.

[0039] The fixed driving member 224 is installed on the supporting block 223 and connected to the fixed block 225 , and is used to drive the fixed block 225 to press the guide rod 21 between the first bearing 221 and the second bearing 222 .

[0040] Specifically, the fixed driving member 224 drives the pressing block away from the guide rod 21, and then adjusts the distance between the two support rails 11, causing the guide rod 21 to slide along the inner holes of the first bearing 221 and the second bearing 222. When the distance between the two support rails 11 is adjusted, the fixed driving member 224 drives the fixed block 225 to press the guide rod 21 between the first bearing 221 and the second bearing 222, so that the guide rod 21 does not slide along the inner holes of the first bearing 221 and the second bearing 222. In this embodiment, the distance adjustment operation between the two support rails 11 is simple.

[0041] In one embodiment, the end of the fixing block 225 away from the fixed driving member 224 is provided with a pressure groove (not shown) that is adapted to fit the guide rod 21. The fixing block 225 compresses the guide rod 21 between the first bearing 221 and the second bearing 222 through the pressure groove. It is understood that the pressure groove is a semicircular groove that fits the guide rod 21. In this embodiment, the design of the pressure groove ensures that the pressure block firmly presses the guide rod 21.

[0042] like Figure 5 As shown, another embodiment of the present invention further provides a solder paste printer, comprising a support frame 3, a movable module 4, a scraper assembly 5, and the aforementioned stencil rapid positioning device; the movable module 4 and the support rail 11 are both mounted on the support frame 3, the scraper assembly 5 is mounted on the movable module 4, and the movable module 4 is used to drive the scraper assembly 5 to move along the length direction of the support rail 11. It is understandable that the movable module 4 includes but is not limited to a linear motor, a screw-nut mechanism, etc. The scraper assembly 5 is located above the stencil rapid positioning device. After the stencil is moved into position on the support rail 11, the movable module 4 drives the scraper assembly 5 to move, and the scraper assembly 5 can brush the solder paste on the stencil onto the circuit board below it.

[0043] In one embodiment, if Figure 6 As shown, the solder paste printer also includes a push rod assembly 6, which includes a lifting drive 61 installed on the scraper assembly 5 and a push rod 62 installed at the output end of the lifting drive 61; it can be understood that the lifting drive 61 includes but is not limited to a linear motor, a pneumatic cylinder and a hydraulic cylinder, etc.; to further illustrate, the two conveying mechanisms are installed at the entrance of the support guide rail 11.

[0044] The moving module 4 is further used to drive the steel mesh to move along the supporting guide rail 11 through the push rod assembly 6 .

[0045] Specifically, the steps for loading the steel mesh on the solder paste printer are as follows: the moving module 4 drives the push rod assembly 6 to push the steel mesh to move on the two support plates 111. After the steel mesh is moved into place on the two support plates 111, the positioning drive 14 drives the positioning rod 13 to press the steel mesh onto the support plates 111.

[0046] The steps for unloading the steel mesh on the solder paste printer are as follows: the lifting drive member 61 drives the push rod 62 to extend and abut against the frame of the steel mesh, and the moving module 4 drives the steel mesh to move on the two support rails 11 through the push rod assembly 6 until the steel mesh is moved out of the solder paste printer.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel mesh rapid positioning device, characterized in that: The invention comprises two guide rail assemblies spaced apart from each other; the guide rail assemblies comprise a support guide rail, a support seat, a positioning rod, and a positioning drive member mounted on the support seat; a support plate and a slide groove are respectively provided at opposite ends of the support guide rail; the support plate and the slide groove both extend along the length direction of the support guide rail; The support seat is installed in the slide groove; the output end of the positioning drive is connected to the positioning rod and is used to drive the positioning rod to press the steel mesh onto the support plate.

2. The steel mesh rapid positioning device according to claim 1, characterized in that: The support seat includes a mounting plate and an adjusting guide rail mounted on the mounting plate. The positioning drive member is mounted on the mounting plate, and the adjusting guide rail is mounted in the sliding groove.

3. The steel mesh rapid positioning device according to claim 2, characterized in that: The mounting plate is provided with a first through hole, and the adjustment rail is provided with a second through hole connected to the first through hole; the support seat further includes a fastener inserted into the first through hole and the second through hole; The fastener abuts against the inner wall of the slide groove to fix the adjustment guide rail in the slide groove.

4. The steel mesh rapid positioning device according to claim 1, characterized in that: The steel mesh rapid positioning device further comprises an adjustment component for adjusting the distance between the two support rails; The adjustment assembly includes a guide rod and two fixing members, and the opposite ends of the guide rod are respectively installed on the two support rails; the fixing members are installed on the support rails in a one-to-one correspondence and are used to fix the guide rod on the support rails.

5. The steel mesh rapid positioning device according to claim 4, characterized in that: The fixing member includes a first bearing, a second bearing, a support block, a fixed driving member, and a fixed block; the support block is mounted on the support guide rail and is provided with a third through hole, the first bearing and the second bearing are installed in the third through hole at intervals, and the guide rod passes through the inner holes of the first bearing and the second bearing; The fixed driving member is installed on the supporting block and connected to the fixed block, and is used to drive the fixed block to press the guide rod between the first bearing and the second bearing.

6. The steel mesh rapid positioning device according to claim 5, characterized in that: A pressing groove adapted to the guide rod is provided at one end of the fixing block away from the fixed driving member, and the fixing block presses the guide rod between the first bearing and the second bearing through the pressing groove.

7. A solder paste printer, characterized in that: It includes a support frame, a movable module, a scraper assembly and a steel mesh rapid positioning device as described in any one of claims 1 to 6; the movable module and the support guide rail are both installed on the support frame, the scraper assembly is installed on the movable module, and the movable module is used to drive the scraper assembly to move along the length direction of the support guide rail.

8. The solder paste printer according to claim 7, characterized in that: The solder paste printer further includes a push rod assembly, wherein the push rod assembly includes a lifting drive member mounted on the scraper assembly and a push rod mounted at an output end of the lifting drive member; The moving module is also used to drive the steel mesh to move along the supporting guide rail through the push rod assembly.

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