CN211103844U

CN211103844U - Novel otter board rack

Info

Publication number: CN211103844U
Application number: CN201921865854.0U
Authority: CN
Inventors: 陈騉
Original assignee: Kunshan Pagena Electronic Technology Co ltd
Current assignee: Kunshan Pagena Electronic Technology Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-28
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a novel screen board placing rack, which relates to the field of SMT screen board placing, and comprises a main frame, wherein the main frame comprises a limiting seat, an auxiliary block and a roller, the limiting seat adopts an inverted U-shaped block, the material is preferably acrylic material, the front end and the rear end of the limiting seat are both provided with central rods, the central rods are sleeved with the roller, the outer layer of the roller is provided with corrosion-resistant rubber, the auxiliary block is arranged between the two central rods, the height of the auxiliary block is lower than that of the roller in the horizontal direction, the middle part of the auxiliary block is provided with a telescopic column, the inner part of the telescopic column is embedded in the auxiliary block through spring activity, when the screen board is inserted into the placing rack, the roller is contacted first, the roller can rotate to reduce the friction force between the screen board and the limiting seat, the screen board can be rapidly inserted into the placing rack, prevent that spacing seat contact rubber coating position from causing the otter board to scrap the problem when inserting the otter board, this practicality has the effect of extension otter board life-span.

Description

Novel otter board rack

Technical Field

The utility model relates to a field is placed to the SMT otter board, especially relates to a novel otter board rack.

Background

Surface Mount Technology (Surface Mount Technology), known collectively as Surface Mount Technology, is currently the most popular Technology and process in the electronic assembly industry. The surface mount device is a Circuit mounting technology in which a surface mount device (abbreviated as SMC/SMD, which is a chip device in chinese) having no leads or short leads is mounted on a surface of a Printed Circuit Board (PCB) or a surface of another substrate, and is soldered and mounted by a method such as reflow soldering or dip soldering. The screen plate is a necessary tool in the printing process of SMT electronic factory, the main making method of the screen plate has the making means of electroplating, laser, chemical corrosion, etc., most of the current methods adopt the laser engraving method, so the making efficiency of the method is high, the screen plate mainly comprises an aluminum alloy frame and a middle screen connected by gluing, the tension of the middle screen in the screen plate directly determines the quality of the tin paste printed after printing in the printing process, therefore, the screen plate needs to be tested for the tension of the screen plate when in use, the screen plate needs to be placed in the screen plate frame before and after use, as shown in figure 1, the screen plate placing frame adopted at present mostly adopts an acrylic plate and a limiting seat, and the design has several defects 1. 2. The front end of the limiting seat is regular strip-shaped, and the height of the general limiting seat for fixing the screen plate is larger than the height of the screen plate connecting middle screen sealing glue position, so that the screen plate sealing glue position is easily abraded to reduce the screen plate tension and influence the printing quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, can reduce the risk of the fish tail when inserting with the otter board through the spacing seat of the type of falling "U" that sets up, spacing seat highly is less than the otter board rubber coating height, lower the contact with otter board rubber coating position, the life of extension otter board, in order to compensate the high fixed unstable hidden danger to the otter board that reduces spacing seat, be equipped with flexible post on supplementary piece to steel sheet secondary positioning, the dynamic friction is changed into by the static friction when drum and the cooperation messenger otter board of center post insert, can insert fast, extract convenient to use.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel otter board rack, including the main frame, the main frame including spacing seat, supplementary piece, cylinder spacing seat adopts "U" type piece, the preferred ya keli material of material, spacing seat front end, rear end all are equipped with well core rod, well core rod goes up the cover and has the cylinder, the cylinder skin is equipped with corrosion resistant rubber, is equipped with supplementary piece between two well core rods, and supplementary piece height is less than the cylinder height on the horizontal direction, and supplementary piece middle part is equipped with flexible post, and flexible post is inside to be inlayed in supplementary piece through spring activity.

In a further technical scheme, the height of the limiting seat is lower than that of a sealing position of the screen plate.

According to the further technical scheme, the top of the telescopic column is arc-shaped, so that the friction force generated when the telescopic column is inserted into the screen plate is reduced.

According to the further technical scheme, the limiting seats are arranged on the main frame in pairs through hexagon socket head bolts.

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

can reduce the risk of fish tail when inserting with the otter board through the spacing seat of "U" type of falling that sets up, original adoption rectangular type right angle, cause the problem of otter board fish tail easily, spacing seat height is less than the otter board rubber coating height, reduce the contact with otter board rubber coating position, the life of extension otter board, in order to compensate the fixed unstable hidden danger of the otter board of reducing spacing seat height, be equipped with flexible post to steel sheet secondary positioning on supplementary piece, the cylinder changes dynamic friction into by static friction when making the otter board insert with the cooperation of center post, can insert fast, extract convenient to use.

Drawings

FIG. 1 is a schematic view of a conventional otter board rack;

FIG. 2 is a schematic view of a mesh panel structure;

FIG. 3 is a schematic view of a novel otter board rack of the present invention;

FIG. 4 is a top view of a novel net plate placing rack limiting seat of the present invention;

in the figure: 1, rolling a roller; 2, a central rod; 3, screen plate; 4, a limiting seat; 5 a main frame; 6, an auxiliary block; 7, a telescopic column; 15 middle net; 20, sealing the glue.

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.

Example 1; referring to fig. 1-2, the screen board placing rack in the prior art has a simple structure, the main structure is a limiting seat, the limiting seat adopts a strip structure, the structure has the disadvantages that the screen board 3 has a large surface contact friction resistance when inserted, the height of the limiting seat is not optimized, the screen board is easily scratched to the sealing glue position 20, the damage of the sealing glue position 20 further causes the insufficient tension of the middle net 15, and the printing quality of the solder paste is affected, referring to fig. 3, the technical scheme of the utility model comprises a main frame 5, wherein the main frame 5 comprises a limiting seat 4, an auxiliary block 6, a roller 1, the limiting seat 4 adopts an inverted U-shaped block, the material is preferably acrylic, the front end and the rear end of the limiting seat 4 are both provided with a central rod 2, the central rod 2 is sleeved with the roller 1, the outer layer of the roller 1 is provided with corrosion-resistant rubber to prevent the solvent from being remained and corroded after the, an auxiliary block 6 is arranged between the two central rods 2, the height of the auxiliary block 6 is lower than that of the roller 1 in the horizontal direction, the height of the limiting seat 4 is lower than that of the position 20 of the screen plate sealing glue, and the limiting seat 4 is arranged on the main frame 5 in pairs through hexagon socket head cap screws.

Embodiment 2, different from embodiment 1, referring to fig. 4, in order to make up for the hidden trouble that the height of the limiting seat 4 is reduced to make the fixation of the screen plate 3 unstable, a telescopic column 7 is arranged in the middle of an auxiliary block 6, the inside of the telescopic column 7 is movably embedded in the auxiliary block 6 through a spring, the top of the telescopic column 7 is arc-shaped, the friction force between the telescopic column 7 and the screen plate 3 during insertion is reduced, and the telescopic column 7 can be compressed and smoothly slide on a cylinder 1 at the rear end of the limiting seat 4 when the screen plate 3 is inserted.

The utility model discloses a setting fall the spacing seat of "U" type can reduce with the otter board risk of fish tail when inserting, spacing seat highly is less than the otter board rubber coating height, lowers the contact with otter board rubber coating position, the life of extension otter board, in order to compensate to reduce the high fixed unstable hidden danger of otter board of spacing seat, be equipped with flexible post on supplementary piece to steel sheet secondary positioning, change dynamic friction into by static friction when drum and the cooperation of center post make the otter board insert, can insert fast, extract convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel otter board rack, a serial communication port, including the main frame, the main frame includes spacing seat, auxiliary block, cylinder spacing seat adopts down "U" type piece, and the material adopts the ya keli material, and spacing seat front end, rear end all are equipped with well core rod, the cover has the cylinder on well core rod, the cylinder skin is equipped with corrosion-resistant rubber, is equipped with auxiliary block between two well core rods, and auxiliary block highly is less than the cylinder height on the horizontal direction, and auxiliary block middle part is equipped with flexible post, and flexible post is inside to be inlayed in auxiliary block through spring activity.

2. The novel screen board placing frame according to claim 1, wherein the height of the limiting seat is lower than the height of the position where the screen board is sealed with glue.

3. The novel screen board placing frame according to claim 1, wherein the top of the telescopic column is arc-shaped, so that friction force generated when the screen board is inserted into the frame is reduced.

4. The novel otter board rack of claim 1, wherein the limiting seats are arranged on the main frame in pairs through hexagon socket head bolts.