CN217656816U

CN217656816U - Steel mesh structure for PCB solder paste printing

Info

Publication number: CN217656816U
Application number: CN202220708857.9U
Authority: CN
Inventors: 熊炜; 田云
Original assignee: Xianle Power Control Technology Shanghai Co ltd
Current assignee: Xianle Power Control Technology Shanghai Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-10-25
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a steel mesh structure of PCB tin cream printing, including the steel mesh body, the surface of steel mesh body is equipped with first mounting bracket and second mounting bracket from top to bottom respectively, the draw-in groove has all been seted up with the inner wall of second mounting bracket to the inner wall of first mounting bracket, the inside at the draw-in groove is established to the side card of steel mesh body, the first fixed plate of the equal fixedly connected with of terminal surface about first mounting bracket, the equal fixedly connected with second fixed plate of terminal surface about the second mounting bracket, when installing the steel mesh body, establish the side card of steel mesh body in the draw-in groove of first mounting bracket and second mounting bracket, later pass the through-hole with the dead lever, the locating piece will be to outside extrusion butt piece, and first spring is compressed this moment, and when the locating piece is located butt piece's top, butt piece will with the locating piece butt under the effect of first spring, and then install first mounting bracket and second mounting bracket, convenient to use, the dismouting is efficient.

Description

Steel mesh structure for PCB solder paste printing

Technical Field

The utility model relates to a tin cream printing machine technical field specifically is a steel mesh structure of PCB tin cream printing.

Background

The modern solder paste printer generally comprises mechanisms such as plate loading, solder paste adding, impression, power transmission circuit board and the like, and the working principle is as follows: the PCB to be printed is fixed on a printing positioning table, then solder paste or red glue is subjected to screen printing on corresponding bonding pads through a steel mesh by a left scraper and a right scraper of a printing machine, and the PCB with uniform screen printing is input into a chip mounter through a transmission table to be subjected to automatic chip mounting.

But the existing steel sheet for the tin cream printing machine in the existing market has the steel mesh and can not be replaced, the utilization rate of the steel mesh is low, and the steel mesh is extruded and damaged, so that the whole steel sheet can be discarded, the cost is increased, the profit rate of production is reduced, and therefore, the steel mesh structure for PCB tin cream printing is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel mesh structure of PCB tin cream printing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a steel mesh structure for PCB solder paste printing comprises a steel mesh body, wherein a first mounting frame and a second mounting frame are respectively arranged above and below the outer surface of the steel mesh body, clamping grooves are respectively formed in the inner wall of the first mounting frame and the inner wall of the second mounting frame, the side edges of the steel mesh body are clamped in the clamping grooves, a first fixing plate is fixedly connected to the left end face and the right end face of the first mounting frame, a second fixing plate is fixedly connected to the left end face and the right end face of the second mounting frame, a through hole is formed in the middle of the upper end face of the first fixing plate, first sliding grooves are respectively formed in the left side and the right side of the upper end face of the first fixing plate, the utility model discloses a fixing device for the automobile seat, including first spout, first slider, dead lever, first inclined plane, second inclined plane, dead lever, first spring, first slider, first spring, the equal fixedly connected with butt piece in relative one side of the first slider of side about, the equal fixedly connected with butt piece in relative one side of first slider of side between the inner wall of first slider and first spout, dead lever fixedly connected with locating piece is passed through at the up end middle part of second fixed plate, first inclined plane has all been seted up on the up end left and right sides of locating piece, and the second inclined plane that matches with first inclined plane is all seted up to the relative one side of side butt piece about, the dead lever passes the through-hole, and the locating piece and the butt piece butt on dead lever top.

Preferably, the diameter of the through hole is larger than the length of the positioning block.

Preferably, the outer surface sliding sleeve of dead lever is equipped with the sliding sleeve, the bottom face left and right sides of sliding sleeve all articulates there is the connecting rod, the second spout has all been seted up on the up end left and right sides of second fixed plate, the inside sliding connection of second spout has the second slider, the bottom of connecting rod is articulated with the up end of second slider, fixedly connected with second spring between the inner wall of second slider and second spout.

Preferably, the first mounting frame and the second mounting frame are both made of aluminum materials.

Preferably, terminal surface and the top fixedly connected with backup pad that is located first fixed plate about first mounting bracket, the slide bar is worn to be equipped with in the up end of backup pad slides, the top fixedly connected with of slide bar presses the briquetting, the articulated piece of bottom fixedly connected with of slide bar, the left and right sides of the bottom face of articulated piece all articulate there is the hinge bar, the hinge bar is articulated with the up end of first slider, the surface cover of slide bar is equipped with the third spring, the one end of third spring and the bottom face fixed connection who presses the briquetting, the other end of third spring and the up end fixed connection of backup pad.

Preferably, the outer surface of the pressing block is provided with a plurality of anti-skid protrusions.

Compared with the prior art, the beneficial effects of the utility model are that: the steel mesh structure is convenient to use, simple in structure and convenient to disassemble and assemble, when the steel mesh body is installed, the side edge of the steel mesh body is clamped in the clamping grooves of the first installation frame and the second installation frame, then the fixing rod penetrates through the through hole, the positioning block extrudes the abutting block outwards, the first spring is compressed at the moment, and when the positioning block is positioned above the abutting block, the abutting block abuts against the positioning block under the action of the first spring, so that the first installation frame and the second installation frame are installed; when the positioning block abuts against the abutting block, the sliding sleeve is matched with the connecting rod to drive the second sliding blocks on the left side and the right side to move away, the second spring is stretched at the moment, and then the positioning block keeps downward force, so that the positioning effect of the positioning block and the abutting block can be improved; when pressing down according to the briquetting, the first slider on left and right sides will the phase-to-phase motion under the cooperation of hinge bar, and the butt joint piece will break away from the locating piece, and first mounting bracket will break away from with the second mounting bracket under the effect of second spring this moment, and then steel mesh body under the personnel of being convenient for dismantle.

Drawings

FIG. 1 is a schematic cross-sectional front view of a steel mesh structure for PCB solder paste printing;

fig. 2 is an enlarged schematic view of a structure a in fig. 1 of a steel mesh structure printed with solder paste of a PCB.

In the figure: 1-steel mesh body, 2-second mounting frame, 3-first mounting frame, 4-positioning block, 5-abutting block, 6-connecting rod, 7-second slider, 8-second fixing plate, 9-fixing rod, 10-sliding sleeve, 11-second sliding groove, 12-second spring, 13-first sliding groove, 14-first spring, 15-first slider, 16-hinge rod, 17-supporting plate, 18-third spring, 19-pressing block, 20-sliding rod, 21-first fixing plate and 22-through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-2, a steel mesh structure for PCB solder paste printing includes a steel mesh body 1, a first mounting frame 3 and a second mounting frame 2 are respectively disposed on an upper side and a lower side of an outer surface of the steel mesh body 1, a clamping groove is formed in an inner wall of the first mounting frame 3 and an inner wall of the second mounting frame 2, a side edge of the steel mesh body 1 is clamped inside the clamping groove, a first fixing plate 21 is fixedly connected to a left end surface and a right end surface of the first mounting frame 3, a second fixing plate 8 is fixedly connected to a left end surface and a right end surface of the second mounting frame 2, a through hole 22 is formed in the middle of an upper end surface of the first fixing plate 21, a first sliding groove 13 is formed in the left side and the right side of the upper end surface of the first fixing plate 21, a first sliding block 15 is slidably connected to the first sliding groove 13, a first spring 14 is fixedly connected between the inner walls of the first sliding block 15 and the first sliding groove 13, a butting block 5 is fixedly connected to a left side and a right side of the first sliding block 15, a positioning block 4 is fixedly connected to a butting block 4 through a fixing rod 9, a left side and a right side of the first sliding block 5 is abutted to a top end surface of the fixing rod 9, and a left side of the fixing block 5 is abutted to a top end surface of the fixing rod 9.

When installing steel mesh body 1, establish the side card of steel mesh body 1 in the draw-in groove of first mounting bracket 3 and second mounting bracket 2, later pass through-hole 22 with dead lever 9, locating piece 4 will be to outside extrusion butt piece 5, first spring 14 is compressed this moment, when locating piece 4 is located the top of butt piece 5, butt piece 5 will with locating piece 4 butt under the effect of first spring 14, and then install first mounting bracket 3 and second mounting bracket 2, high durability and convenient use, the dismouting is efficient.

The diameter of the through hole 22 is larger than the length of the positioning block 4, so that the positioning block 4 can conveniently pass through the through hole 22.

The outer surface of the fixing rod 9 is slidably provided with a sliding sleeve 10, the left side and the right side of the bottom end face of the sliding sleeve 10 are hinged with a connecting rod 6, the left side and the right side of the upper end face of the second fixing plate 8 are both provided with a second sliding groove 11, the inside of the second sliding groove 11 is slidably connected with a second sliding block 7, the bottom end of the connecting rod 6 is hinged with the upper end face of the second sliding block 7, and a second spring 12 is fixedly connected between the inner wall of the second sliding block 7 and the inner wall of the second sliding groove 11.

When the locating block 4 abuts against the abutting block 5, the sliding sleeve 10 is matched with the connecting rod 6 to drive the left and right second sliding blocks 7 to move away from each other, the second spring 12 is stretched at the moment, and then the locating block 4 keeps downward force, so that the locating effect of the locating block 4 and the abutting block 5 can be improved.

The first mounting frame 3 and the second mounting frame 2 are both made of aluminum materials.

Example 2: referring to fig. 1 to 2, a steel mesh structure for PCB solder paste printing is different from embodiment 1 in that a support plate 17 is fixedly connected to left and right end surfaces of a first mounting frame 3 and located above a first fixing plate 21, a slide rod 20 is slidably inserted through an upper end surface of the support plate 17, a pressing block 19 is fixedly connected to a top end of the slide rod 20, a hinge block is fixedly connected to a bottom end of the slide rod 20, hinge rods 16 are hinged to left and right sides of a bottom end surface of the hinge block, the hinge rods 16 are hinged to an upper end surface of a first slider 15, a third spring 18 is sleeved on an outer surface of the slide rod 20, one end of the third spring 18 is fixedly connected to the bottom end surface of the pressing block 19, and the other end of the third spring 18 is fixedly connected to the upper end surface of the support plate 17.

When pressing down the pressing block 19, the first slider 15 on the left and right sides will move away from under the cooperation of the hinge rod 16, the abutting block 5 will break away from the positioning block 4, and at this moment, the first mounting frame 3 and the second mounting frame 2 will break away from under the action of the second spring 12, so that the person of being convenient for can dismantle the lower steel mesh body 1.

Furthermore, the outer surface of the pressing block 19 is provided with a plurality of anti-skid protrusions.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

Claims

1. The utility model provides a steel mesh structure of PCB tin cream printing, includes steel mesh body (1), its characterized in that: a first mounting frame (3) and a second mounting frame (2) are respectively arranged above and below the outer surface of the steel mesh body (1), clamping grooves are formed in the inner wall of the first mounting frame (3) and the inner wall of the second mounting frame (2), the side edges of the steel mesh body (1) are clamped in the clamping grooves, a first fixing plate (21) is fixedly connected to the left end face and the right end face of the first mounting frame (3), a second fixing plate (8) is fixedly connected to the left end face and the right end face of the second mounting frame (2), a through hole (22) is formed in the middle of the upper end face of the first fixing plate (21), first sliding grooves (13) are formed in the left side and the right side of the upper end face of the first fixing plate (21), first spout (13) go up sliding connection has first slider (15), first spring (14) of fixedly connected with between the inner wall of first slider (15) and first spout (13), the equal fixedly connected with butt piece (5) in relative one side of the first slider (15) of side about, dead lever (9) fixedly connected with locating piece (4) are passed through to the up end middle part of second fixed plate (8), first inclined plane has all been seted up on the right side and left side of the up end of locating piece (4), and the second inclined plane that matches with first inclined plane has all been seted up to relative one side of side butt piece (5) about, through-hole (22) are passed in dead lever (9), and locating piece (4) and butt piece (5) on dead lever (9) top And (4) abutting.

2. The steel mesh structure for PCB solder paste printing of claim 1, wherein: the diameter of the through hole (22) is larger than the length of the positioning block (4).

3. The PCB solder paste printed steel mesh structure of claim 2, wherein: the outer surface sliding sleeve of dead lever (9) is equipped with sliding sleeve (10), the bottom face left and right sides of sliding sleeve (10) all articulates there is connecting rod (6), second spout (11) have all been seted up on the upper end face left and right sides of second fixed plate (8), the inside sliding connection of second spout (11) has second slider (7), the bottom of connecting rod (6) is articulated with the up end of second slider (7), fixedly connected with second spring (12) between the inner wall of second slider (7) and second spout (11).

4. A PCB solder paste printed steel mesh structure according to claim 3, wherein: the first mounting frame (3) and the second mounting frame (2) are both made of aluminum materials.

5. The PCB solder paste printed steel mesh structure of claim 4, wherein: terminal surface and the top fixedly connected with backup pad (17) that is located first fixed plate (21) about first mounting bracket (3), slide bar (20) are worn to be equipped with in the up end of backup pad (17) slip, the top fixedly connected with of slide bar (20) presses piece (19), the articulated piece of bottom fixedly connected with of slide bar (20), the bottom face left and right sides of articulated piece all articulates there is articulated rod (16), articulated rod (16) are articulated with the up end of first slider (15), the surface cover of slide bar (20) is equipped with third spring (18), the one end of third spring (18) and the bottom face fixed connection who presses piece (19), the other end of third spring (18) and the up end fixed connection of backup pad (17).

6. The PCB solder paste printed steel mesh structure of claim 5, wherein: the outer surface of the pressing block (19) is provided with a plurality of anti-skid bulges.