CN211860709U

CN211860709U - Fixing device for SMT screen plate

Info

Publication number: CN211860709U
Application number: CN202020738029.0U
Authority: CN
Inventors: 陆海军
Original assignee: Suzhou Zhuoyi Automation Equipment Co ltd
Current assignee: Suzhou Zhuoyi Automation Equipment Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-11-03
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a fixing device for SMT otter board relates to SMT otter board technical field, aligns with the PCB board for solving current needs the handheld otter board of staff before going up tin to the PCB board, also needs manual the pressing otter board of manual work when going up tin, appears the shake easily when going up tin to influence the tinning quality, thereby influence the problem of tinning quality. The utility model discloses a press plate, including screen frame, screw rod, pressure dish, screen frame, adhesive layer, auxiliary pressing plate, first slider, second slider, first magnetic adsorption strip, screen frame, second slide rail, screen frame and screen frame are provided with the adhesive layer, screen frame.

Description

Fixing device for SMT screen plate

Technical Field

The utility model relates to a SMT otter board technical field specifically is a fixing device for SMT otter board.

Background

The SMT net plate is also called a steel plate, and the main function of the SMT net plate is to help the deposition of solder paste and transfer an accurate amount of solder paste to an accurate position on a smooth plate. The screen plate consists of a screen frame, a screen mesh and a steel sheet. The steel sheet has a plurality of holes therein, the holes being positioned to correspond to the positions of the PCB to be printed. When the solder paste printing machine is used, the PCB is placed below the screen plate, and solder paste is printed on the PCB through the small holes in the fixed positions on the screen plate. The less solder paste gets clogged on the screen, the more solder paste is deposited on the PCB.

However, the screen plate needs to be held by a worker to align with the PCB before the existing PCB is tinned, the screen plate needs to be manually pressed during tinning, shaking easily occurs during tinning, so that the tinning quality is influenced, the existing requirements are not met, and the fixing device for the SMT screen plate is provided for the existing fixing device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixing device for SMT otter board to current that proposes in solving above-mentioned background art need the handheld otter board of staff to align with the PCB board before going up tin to the PCB board, also need artifical manual pressing otter board when going up tin, the shake appears easily when going up tin, thereby influences the tinning quality, thereby influences the problem of tinning quality.

In order to achieve the above object, the utility model provides a following technical scheme: a fixing device for an SMT screen plate comprises a screen frame, a first slide rail, a second slide rail and a storage plate, wherein the screen plate is arranged in the screen frame, an open hole area is formed in the upper end of the screen plate, a tension net is arranged between the screen frame and the screen plate and connected with the screen frame through an adhesive layer, an auxiliary pressing plate is arranged on one side of the screen frame, a screw is installed at the upper end of the auxiliary pressing plate, a pressing plate is installed at the lower end of the screw, an anti-abrasion pad is arranged at the lower end of the pressing plate, first slide blocks are arranged on two sides of the lower end of the screen frame, second magnetic adsorption strips are arranged in the first slide blocks, first magnetic adsorption strips are arranged in the screen frame, the second slide rail is located below the first slide rail, the storage plate is located in the middle of the second slide rail, two first slide rail and two second slide rail are arranged, and chutes are arranged at the upper ends of the first slide rail and the second slide rail, the both sides of first slide rail lower extreme all are provided with the second slider, the inside of second slider is provided with the third magnetic adsorption strip, the outside of first slide rail and second slide rail all is provided with the curb plate, the inside of curb plate is provided with the electromagnetism piece.

Preferably, the first sliding block is connected with the sliding groove in a sliding mode, and the second sliding block is connected with the sliding groove in a sliding mode.

Preferably, the first magnetic adsorption strip and the second magnetic adsorption strip are magnetically adsorbed.

Preferably, the second magnetic adsorption strip is magnetically adsorbed with the electromagnetic block.

Preferably, the electromagnetic block is magnetically attracted to the third magnetic attraction strip.

Preferably, the screen frame is connected with the auxiliary pressing plate through screws.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a first slider and second slider all can slide along the spout, so can control the removal on the left and right sides fore-and-aft direction of otter board, can align the trompil district and the PCB board of otter board fast, the staff does not need the handheld otter board in limit to align, time saving and labor saving more, and can make the electricity that passes through of electromagnetic block after the otter board aligns carry out magnetic adsorption to the inside second magnetic adsorption of first slider and the inside third magnetic adsorption strip of second slider, thereby carry out the position locking to first slider and second slider, avoid the otter board shake when the tinning, thereby stability when guaranteeing the tinning, the tinning quality is improved.

2. The utility model discloses a rotating the screw rod and driving and pressing down the dish downstream, applying external force in the otter board, tension net is stretched, makes the otter board downstream, and the user can adjust supplementary press force degree according to the demand, replaces artifical manual pressing or reduces manual press force degree when last tin, further avoids the otter board shake when last tin, stability when guaranteeing the last tin, improvement tinning quality.

3. The utility model discloses a magnetic adsorption between first magnetic adsorption strip and second magnetic adsorption strip can be fixed with the net frame fast with first slider, and supplementary press platen passes through the screw connection with the net frame, and is convenient with dismantling to first slider and supplementary press platen installation, but the otter board exclusive use, and each part of fixing device also can be dismantled fast, receive and release the convenience.

Drawings

Fig. 1 is a top view of a fixing device for an SMT stencil according to the present invention;

FIG. 2 is a connection diagram of the screen frame and the first sliding block of the present invention;

fig. 3 is a schematic structural view of a side plate of the present invention;

fig. 4 is a schematic structural diagram of the second slider according to the present invention.

In the figure: 1. a screen frame; 2. a screen plate; 3. opening the hole area; 4. a tension web; 5. an adhesive layer; 6. an auxiliary pressing plate; 7. a screw; 8. pressing the disc; 9. a first slider; 10. a first magnetic adsorption strip; 11. a second magnetic adsorption strip; 12. a first slide rail; 13. a second slide rail; 14. a storage plate; 15. a chute; 16. a side plate; 17. an electromagnetic block; 18. a second slider; 19. and a third magnetic adsorption strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-4, the present invention provides an embodiment: a fixing device for an SMT screen plate comprises a screen frame 1, a first slide rail 12, a second slide rail 13 and a storage plate 14, wherein the screen plate 2 is arranged inside the screen frame 1, an open hole region 3 is formed in the upper end of the screen plate 2, a tension net 4 is arranged between the screen frame 1 and the screen plate 2, the tension net 4 is connected with the screen frame 1 through an adhesive layer 5, an auxiliary pressing plate 6 is arranged on one side of the screen frame 1, a screw 7 is arranged at the upper end of the auxiliary pressing plate 6, a pressing plate 8 is arranged at the lower end of the screw 7, an anti-abrasion pad is arranged at the lower end of the pressing plate 8, after alignment, the screw 7 is rotated to drive the pressing plate 8 to move downwards, external force is applied to the screen plate 2, the tension net 4 is stretched to enable the screen plate 2 to move downwards, a user can adjust the auxiliary pressing force according to requirements, manual pressing is replaced by manual pressing or manual pressing force reduction during tin coating, the screen plate is further prevented from shaking during tin coating, a second magnetic adsorption strip 11 is arranged inside the first sliding block 9, a first magnetic adsorption strip 10 is arranged inside the screen frame 1, a second sliding rail 13 is positioned below the first sliding rail 12, an object placing plate 14 is positioned in the middle of the second sliding rail 13, two first sliding rails 12 and two second sliding rails 13 are arranged, sliding grooves 15 are arranged at the upper ends of the first sliding rail 12 and the second sliding rail 13, second sliding blocks 18 are arranged at two sides of the lower end of the first sliding rail 12, a third magnetic adsorption strip 19 is arranged inside the second sliding block 18, side plates 16 are arranged at the outer sides of the first sliding rail 12 and the second sliding rail 13, electromagnetic blocks 17 are arranged inside the side plates 16, after the screen plate 2 is aligned, the electromagnetic blocks 17 can be electrified to carry out magnetic adsorption on the second magnetic adsorption strip 11 inside the first sliding block 9 and the third magnetic adsorption strip 19 inside the second sliding block 18, so as to lock the positions of the first sliding block 9 and the second sliding block 18, thereby avoiding the screen plate 2 from shaking during the tin coating.

Further, the first slider 9 is slidably connected to the slide groove 15, the second slider 18 is slidably connected to the slide groove 15, and both the first slider 9 and the second slider 18 can slide along the slide groove 15, so that the movement of the screen plate 2 in the left-right front-back direction can be controlled.

Further, first magnetic adsorption strip 10 and second magnetic adsorption strip 11 magnetic adsorption can be fixed first slider 9 with frame 1 fast, but otter board 2 exclusive use.

Further, the second magnetic adsorption strip 11 and the electromagnetic block 17 are magnetically adsorbed, so that the position of the screen frame 1, that is, the position of the screen plate 2 can be fixed.

Further, the electromagnetic block 17 and the third magnetic absorption strip 19 are magnetically absorbed, so that the position of the first slide rail 12 can be fixed.

Further, the screen frame 1 and the auxiliary pressing plate 6 are connected through screws, so that the connection mode is simple, and the installation and the disassembly are convenient.

The working principle is as follows: when the screen plate 2 is used, the first sliding block 9 and the screen frame 1 can be quickly fixed through the magnetic adsorption between the first magnetic adsorption strip 10 and the second magnetic adsorption strip 11, the screen plate 2 and the fixing device can be fixed by embedding the first sliding block 9 into the sliding groove 15, a PCB to be tinned is placed at the upper end of the object placing plate 14, the first sliding block 9 and the second sliding block 18 can slide along the sliding groove 15, so that the movement of the screen plate 2 in the left, right, front and back directions can be controlled, the opening area 3 of the screen plate 2 can be quickly aligned with the PCB, a worker does not need to hold the screen plate 2 while aligning, time and labor are saved, the electromagnetic block 17 can be electrified to carry out the magnetic adsorption on the second magnetic adsorption strip 11 in the first sliding block 9 and the third magnetic adsorption strip 19 in the second sliding block 18 after the screen plate 2 is aligned, the position locking of the first sliding block 9 and the second sliding block 18 is avoided, the screen plate 2 is shaken during the tinning, thereby stability when guaranteeing the tinning, after the alignment, it drives pressing disc 8 downstream to rotate screw rod 7, apply external force in otter board 2, tension net 4 is stretched, make otter board 2 downstream, the user can adjust supplementary degree of pressure according to the demand, replace artifical manual pressure or reduce manual degree of pressure when tinning, further avoid otter board 2 shake when the tinning, stability when guaranteeing the tinning, improve the tinning quality, magnetic adsorption between first magnetic adsorption strip 10 and second magnetic adsorption strip 11, can be fixed with screen frame 1 fast with first slider 9, supplementary pressing plate 6 passes through the screw connection with screen frame 1, it is convenient to install and dismantle according to pressplate 6 with supplementary to first slider 9, otter board 2 exclusive use, each part of fixing device also can be dismantled fast, receive and release the convenience.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fixing device for SMT otter board, includes screen frame (1), first slide rail (12), second slide rail (13) and puts thing board (14), its characterized in that: the net comprises a net frame (1), and is characterized in that a net plate (2) is arranged in the net frame (1), an open hole region (3) is arranged at the upper end of the net plate (2), a tension net (4) is arranged between the net frame (1) and the net plate (2), the tension net (4) is connected with the net frame (1) through an adhesive layer (5), an auxiliary pressing plate (6) is arranged on one side of the net frame (1), a screw (7) is installed at the upper end of the auxiliary pressing plate (6), a pressing plate (8) is installed at the lower end of the screw (7), an anti-abrasion pad is arranged at the lower end of the pressing plate (8), first sliding blocks (9) are arranged on two sides of the lower end of the net frame (1), second magnetic adsorption strips (11) are arranged in the first sliding blocks (9), first magnetic adsorption strips (10) are arranged in the net frame (1), and second sliding rails (13) are located below first sliding rails (12), put thing board (14) and be located the centre of second slide rail (13), first slide rail (12) and second slide rail (13) all are provided with two, the upper end of first slide rail (12) and second slide rail (13) all is provided with spout (15), the both sides of first slide rail (12) lower extreme all are provided with second slider (18), the inside of second slider (18) is provided with third magnetic adsorption strip (19), the outside of first slide rail (12) and second slide rail (13) all is provided with curb plate (16), the inside of curb plate (16) is provided with electromagnetic block (17).

2. A fixing device for an SMT web according to claim 1, wherein: the first sliding block (9) is connected with the sliding groove (15) in a sliding mode, and the second sliding block (18) is connected with the sliding groove (15) in a sliding mode.

3. A fixing device for an SMT web according to claim 1, wherein: the first magnetic adsorption strip (10) and the second magnetic adsorption strip (11) are magnetically adsorbed.

4. A fixing device for an SMT web according to claim 1, wherein: the second magnetic adsorption strip (11) and the electromagnetic block (17) are magnetically adsorbed.

5. A fixing device for an SMT web according to claim 1, wherein: the electromagnetic block (17) and the third magnetic adsorption strip (19) are magnetically adsorbed.

6. A fixing device for an SMT web according to claim 1, wherein: the screen frame (1) is connected with the auxiliary pressing plate (6) through screws.