CN212349287U

CN212349287U - Easy-to-replace high-precision injection valve firing pin

Info

Publication number: CN212349287U
Application number: CN202020042089.9U
Authority: CN
Inventors: 甄晓煜; 王雅琼
Original assignee: Nuotu Shenzhen Intelligent Technology Co ltd
Current assignee: Nuotu Shenzhen Intelligent Technology Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2021-01-15
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses a high-accuracy injection valve firing pin of easy change, including firing pin body and the needle cap that hits of setting on the firing pin body, be equipped with the briquetting that is used for installing the firing pin body on the firing pin body, two fixture blocks that are the arc setting of firing pin cap top fixedly connected with, the draw-in groove with fixture block looks adaptation is seted up to the briquetting bottom, be equipped with the locking device with fixture block looks adaptation in the draw-in groove, the draw-in groove is the arc setting, the draw-in groove area is greater than bottom degree of depth and fixture block height in fixture block area and the draw-in groove and equals. The utility model discloses, insert the limiting groove that corresponds with the gag lever post, utilize the sliding connection of slider and spout for thereby the fixture block removes makes the inserted block insert the slot that corresponds, inserted block and fixture block zonulae occludens, and utilizes first spring and second spring to support the fixture block tightly, only needs to remove the fixture block during the dismantlement and makes to hit the needle cap and separate and can take off the firing pin body with the briquetting, easy operation, the change of being convenient for.

Description

Easy-to-replace high-precision injection valve firing pin

Technical Field

The utility model relates to a high-accuracy injection valve technical field especially relates to a high-accuracy injection valve firing pin of easy change.

Background

The fluid dispensing technology is a key technology in microelectronic packaging, and can be constructed to form dots, lines, surfaces and various patterns, and is widely applied to chip fixing, packaging and flip-chip coating, wherein an injection valve is one of the common devices for dispensing.

The firing pin and the pressing block are arranged in the injection valve and used for driving the firing pin to move up and down, the pressing block is used for driving the firing pin to enable the firing pin to extrude the colloid to finish dispensing, currently, the firing pin and the pressing block are often fixed in a threaded connection or welding mode, the firing pin is affected by friction when moving up and down, the firing pin is inconvenient to replace in the threaded connection or welding mode, maintenance cost is increased, and therefore the firing pin of the high-precision injection valve which is easy to replace is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the firing pin is difficult to be changed in the injection valve in the prior art, and providing a high-precision injection valve firing pin of easy change.

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

the high-precision injection valve firing pin easy to replace comprises a firing pin body and a firing pin cap arranged on the firing pin body, wherein a pressing block used for installing the firing pin body is arranged on the firing pin body, two arc-shaped clamping blocks are fixedly connected to the top of the firing pin cap, a clamping groove matched with the clamping blocks is formed in the bottom of the pressing block, and a locking device matched with the clamping blocks is arranged in the clamping groove.

Preferably, the clamping groove is arc-shaped, the area of the clamping groove is larger than that of the clamping block, and the depth of the bottom in the clamping groove is equal to the height of the clamping block.

Preferably, locking device includes the inserted block with draw-in groove inside wall fixed connection, bottom sliding connection has the slider in the draw-in groove, the slider is through first spring and draw-in groove inside wall fixed connection, the slot with inserted block looks adaptation is seted up to the fixture block lateral wall, fixed surface is connected with the gag lever post on the fixture block, the spacing groove with gag lever post looks adaptation is seted up to the slider lateral wall, gag lever post and slider are made by magnet, the one end magnetism that the gag lever post lateral wall contacted with the spacing inslot lateral wall is opposite.

Preferably, the inserted block is arc-shaped, a second spring horizontally arranged is sleeved on the outer side wall of the inserted block, and one end of the second spring is fixedly connected with the inner side wall of the clamping groove.

Preferably, the slider is T-shaped, and a sliding groove matched with the slider is formed in the bottom of the clamping groove.

Preferably, the outer side wall of the bottom of the firing pin body is fixedly sleeved with a spiral sheet and a limiting block in a round table shape, the limiting block is positioned above the spiral sheet, and the diameter of the spiral sheet is sequentially increased from bottom to top.

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

1. through the fixture block, the draw-in groove, the inserted block, the stopper, the slider, mutually support between first spring and the second spring, insert the spacing inslot that corresponds with the gag lever post, utilize the sliding connection of slider and spout, thereby make the fixture block remove to make the inserted block insert in the slot that corresponds, inserted block and fixture block zonulae occludens, and utilize first spring and second spring to support the fixture block tightly, make the needle striking cap fixed with the briquetting, only need remove the fixture block during the dismantlement and make needle striking cap and briquetting separation can take off the firing pin body, and is simple in operation, and the change of being convenient for is reduced the maintenance cost.

2. Through the setting of stopper, with the cooperation of valve body inner chamber, prevent that the colloid from excessively spreading to the firing pin body on, cause the waste of colloid, through the setting of flight for can play certain stirring effect to the colloid when the firing pin body moves down, make the colloid mix more evenly.

Drawings

Fig. 1 is a schematic structural diagram of a striker of an easily replaceable high-precision injection valve according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a bottom view of a press block in a firing pin of a high-precision injection valve easy to replace according to the present invention;

fig. 4 is a top sectional view of a needle striking cap in a striker of an easily replaceable high-precision injection valve according to the present invention.

In the figure: the needle-striking mechanism comprises a needle-striking head body 1, a needle-striking cap 2, a pressing block 3, a clamping block 4, a clamping groove 5, an inserting block 6, a limiting block 7, a sliding block 8, a first spring 9, a slot 10, a limiting rod 11, a limiting groove 12, a second spring 13, a sliding groove 14 and a spiral sheet 15.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, the easily-replaceable high-precision injection valve firing pin comprises a firing pin body 1 and a firing pin cap 2 arranged on the firing pin body 1, wherein a pressing block 3 used for installing the firing pin body 1 is arranged on the firing pin body 1, two arc-shaped clamping blocks 4 are fixedly connected to the top of the firing pin cap 2, a clamping groove 5 matched with the clamping blocks 4 is formed in the bottom of the pressing block 3, the clamping groove 5 is arranged in an arc shape, the area of the clamping groove 5 is larger than that of the clamping blocks 4, and the depth of the bottom in the clamping groove 5 is equal to the height of the clamping;

it should be noted that: the fixture block 4 can move in the clamping groove 5, in an initial state, the sliding block 8 is arranged close to the insert block 6, the limiting rod 11 is inserted into the limiting groove 12, so that the fixture block 4 can move for a certain distance along the direction of the sliding groove 14, the first spring 9 can conveniently abut against the sliding block 8 and the fixture block 4 tightly, and the insert block 6 can be conveniently inserted into the corresponding slot 10.

The locking device is matched with the clamping block 4 and comprises an inserting block 6 fixedly connected with the inner side wall of the clamping groove 5, the inserting block 6 is arranged in an arc shape, a horizontally arranged second spring 13 is sleeved on the outer side wall of the inserting block 6, one end of the second spring 13 is fixedly connected with the inner side wall of the clamping groove 5, a sliding block 8 is connected to the bottom of the clamping groove 5 in a sliding mode, the sliding block 8 is arranged in a T shape, a sliding groove 14 matched with the sliding block 8 is formed in the bottom of the clamping groove 5, the sliding block 8 is fixedly connected with the inner side wall of the clamping groove 5 through a first spring 9, a slot 10 matched with the inserting block 6 is formed in the outer side wall of the clamping block 4, a limiting rod 11 is fixedly connected to the upper surface of the clamping block 4, a limiting groove 12 matched with the limiting rod 11 is formed in the outer side wall of the sliding block 8, the limiting rod 11 and the sliding block;

it should be noted that: the bottom in the clamping groove 5 is provided with an accommodating groove matched with the first spring 9, the accommodating groove is communicated with the sliding groove 14, the first spring 9 is prevented from blocking the fixture block 4 to move in the clamping groove 5, and after the inserting block 6 is inserted into the corresponding slot 10, the second spring 13 can be abutted against the outer side wall of the fixture block 4, so that the first spring 9 is matched to abut against the fixture block 4 tightly, and the fixture block 4 is stably connected with the pressing block 3; slider 8 is the T type setting, and is the arc setting with the one end of the 14 contacts of spout to make slider 8 can do curved slip,

gag lever post

11 and 12 inside walls magnetism of spacing groove are opposite, make

gag lever post

11 and 12 spacing grooves 12 can inter attraction, make

gag lever post

11 and 12 spacing grooves be connected stably.

The outer side wall of the bottom of the firing pin body 1 is fixedly sleeved with a spiral sheet 15 and a limiting block 7 in a circular truncated cone shape, the limiting block 7 is positioned above the spiral sheet 15, and the diameters of the spiral sheets 15 are sequentially increased from bottom to top;

it should be noted that: the end part of the limiting block 7 is arc-shaped and can be attached to the inner wall of the valve body cavity to prevent colloid in the valve body from overflowing to the upper part of the limiting block 7; the helical blade 15 can play the stirring effect to the colloid at the in-process that reciprocates for beat colloid misce bene before gluing, also make the valve body nozzle go out to glue the speed more gently simultaneously, make glue blowout effect better.

The working principle of the utility model is as follows:

when the sliding block 8 is in an initial state, the sliding block 8 is arranged close to the inserting block 6, when the sliding block is installed, the two limiting rods 11 are firstly inserted into the corresponding limiting grooves 12, at the moment, the clamping block 4 is in an inclined state due to the obstruction of the inserting block 6, the needle hitting cap 2 is rotated along the direction of the sliding groove 14, so that the clamping block 4 is rotated and separated from the inserting block 6, at the moment, the obstruction of the inserting block 6 disappears, the limiting rods 11 are tightly inserted into the limiting grooves 12 and mutually attracted with the inner side wall of the limiting grooves 12, at the moment, the outer side wall of the clamping block 4 is contacted with the inner bottom of the clamping groove 5, then, the needle hitting cap 2 is rotated reversely, so that the clamping block 4 moves towards the direction of the inserting block 6 along the sliding groove 14, when the clamping block 4 rotates, the inserting block 6 is inserted into the corresponding inserting groove 10 and abuts against the inner bottom of the inserting groove 10, at the sliding block, thereby ensuring the stable connection of the striker body 1 and the press block 3.

When the striker body 1 needs to be disassembled, the striker cap 2 is rotated to separate the clamping block 4 from the insertion block 6, then the striker cap 2 is moved, the striker cap 2 drives the limiting rod 11 on the clamping block 4 to be separated from the limiting groove 12, the detachment of the striker body 1 is completed, the operation is simple, and the replacement of the striker body 1 is convenient.

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 high-precision injection valve firing pin easy to replace comprises a firing pin body (1) and a firing pin cap (2) arranged on the firing pin body (1), wherein a pressing block (3) used for installing the firing pin body (1) is arranged on the firing pin body (1), and is characterized in that two clamping blocks (4) arranged in an arc shape are fixedly connected to the top of the firing pin cap (2), a clamping groove (5) matched with the clamping blocks (4) is formed in the bottom of the pressing block (3), and a locking device matched with the clamping blocks (4) is arranged in the clamping groove (5).

2. The easy-to-replace high-precision injection valve firing pin according to claim 1, wherein the slot (5) is arc-shaped, the area of the slot (5) is larger than that of the block (4), and the depth of the bottom inside the slot (5) is equal to the height of the block (4).

3. The easy-to-replace high-precision injection valve firing pin according to claim 1, wherein the locking device comprises an insert block (6) fixedly connected with the inner side wall of the slot (5), a slider (8) is slidably connected to the bottom of the slot (5), the slider (8) is fixedly connected with the inner side wall of the slot (5) through a first spring (9), a slot (10) matched with the insert block (6) is formed in the outer side wall of the fixture block (4), a limiting rod (11) is fixedly connected to the upper surface of the fixture block (4), a limiting groove (12) matched with the limiting rod (11) is formed in the outer side wall of the slider (8), the limiting rod (11) and the slider (8) are both made of magnet, and the outer side wall of the limiting rod (11) is opposite to the inner side wall of the limiting groove (12) in magnetic contact.

4. The easy-to-replace high-precision injection valve firing pin according to claim 3, wherein the insert block (6) is arc-shaped, a second spring (13) horizontally arranged is sleeved on an outer side wall of the insert block (6), and one end of the second spring (13) is fixedly connected with an inner side wall of the clamping groove (5).

5. The easy-to-replace high-precision injection valve firing pin according to claim 3, wherein the sliding block (8) is arranged in a T shape, and a sliding groove (14) matched with the sliding block (8) is formed at the bottom in the clamping groove (5).

6. The easy-to-replace high-precision injection valve firing pin according to claim 1, wherein a spiral piece (15) and a circular truncated cone-shaped limiting block (7) are fixedly sleeved on the outer side wall of the bottom of the firing pin body (1), the limiting block (7) is located above the spiral piece (15), and the diameters of the spiral pieces (15) are sequentially increased from bottom to top.