CN207327498U - A kind of piston cylinder structure of hot flow path - Google Patents
A kind of piston cylinder structure of hot flow path Download PDFInfo
- Publication number
- CN207327498U CN207327498U CN201721370581.3U CN201721370581U CN207327498U CN 207327498 U CN207327498 U CN 207327498U CN 201721370581 U CN201721370581 U CN 201721370581U CN 207327498 U CN207327498 U CN 207327498U
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- needle
- rectangular channel
- piston
- needle cap
- recessing groove
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Abstract
The utility model discloses a kind of piston cylinder structure of hot flow path, including cylinder body, cylinder cap and sliding are arranged on the piston in cylinder body, the piston base is provided with needle cap, the needle cap bottom is provided with needle, the direction of motion of the bottom wall vertical piston of the piston is provided with rectangular channel, the roof of the needle cap is provided with the sliding block with rectangular channel sliding connection, the rectangular channel madial wall is provided with recessing groove along rectangular channel length direction, the sliding block lateral wall is provided with the anti-drop block slid along recessing groove, its key points of the technical solution are that needle cap is detachably connected by rectangular channel and piston, solve the problems, such as that needle dismounting is difficult；Rectangular channel it is spacing under, limit the rotation of needle cap, solving the problems, such as can not sealing.
Description
Technical field
Hot Runner System technical field is the utility model is related to, more specifically, it relates to a kind of piston cylinder of hot flow path
Structure.
Background technology
Hot flow path uses in injection mold, the heating component collection plastics of thawing being injected into the cavity of mould
Close.Hot Runner System is generally made of several parts such as hot nozzle, flow distribution plate, temperature control box and annex.Hot nozzle form directly determines
Hot Runner System is selected and the manufacture of mould, thus Hot Runner System is divided into open Hot Runner System and valve needle type hot runner
System, valve needle type hot flow passage system have good colour changing performance, highly practical, good flowing properties, imperceptible gate vestiges
The features such as.It compared with common bull Hot Runner System plastic mould, the opening of more a set of needle transmission device control needle,
Close movement.Equivalent to one hydraulic cylinder of the transmission device, is connected using the hydraulic device of injector with mould, is formed hydraulic pressure and is returned
Road, realizes the open and close movement of needle, control molten condition plastics injection cavity.
But in the prior art, the connection structure of needle and hydraulic cylinder is complicated, and demolition and maintenance are difficult；And the work of hydraulic cylinder
Plug be connected with needle, needle does not have rotation stop device, once needle rotation, be easy to cause can not sealing, influence yield rate.
Utility model content
A kind of in view of the deficienciess of the prior art, piston cylinder knot the purpose of this utility model is to provide hot flow path
Structure, it is with needle easy to disassemble, the advantage for preventing needle from rotating.
To achieve the above object, the utility model provides following technical solution：
A kind of piston cylinder structure of hot flow path, including gray iron and sliding are arranged on the piston in cylinder body, the piston
Bottom is provided with needle cap, and the needle cap bottom is provided with needle, and the direction of motion of the bottom wall vertical piston of the piston is set
It is equipped with rectangular channel, the roof of the needle cap is provided with the sliding block with rectangular channel sliding connection, and the rectangular channel madial wall is along square
Shape slot length direction is provided with recessing groove, and the sliding block lateral wall is provided with the anti-drop block slid along recessing groove.
By using above-mentioned technical proposal, needle is installed on needle cap, and needle cap is installed in rectangular channel, on needle cap
Anti-drop block and recessing groove coordinate, anti-drop block can be limited and moved down, needle cap coordinates with rectangular channel sliding, make needle cap without
Method rotates, so as to limit the rotation of needle；When needing to pull down needle, needle shade recessing groove need to be only moved out
It is dynamic, until needle cap is removed, realize easy-to-dismount effect.
Further, the lateral wall that the anti-drop block is bonded with recessing groove is provided with mounting hole, and the mounting hole sliding is set
Fixture block is equipped with, the mounting hole bottom wall is provided with the compression spring being connected with fixture block, and the recessing groove inner wall is provided with for fixture block
The card hole being caught in.
By using above-mentioned technical proposal, when needle cap is loaded in rectangular channel, fixture block offsets with rectangular channel madial wall,
When being moved at card hole, under the elastic force of compression spring, fixture block is ejected into card hole, the effect of the positioning to needle cap of realization
Fruit, under the position-limiting action of card hole, is not easy to skid off out of rectangular channel, adds the stability of connection.
Further, the fixture block end face is spherical in shape, and the card hole is sphere shrinkage pool.
By using above-mentioned technical proposal, since the end face of fixture block is spherical in shape, when in needle cap push-in rectangular channel, fixture block
Easily in income mounting hole；When needle cap is taken out, since card hole is also sphere shrinkage pool, easy to by fixture block out of sphere shrinkage pool
Pull out, improve the simplicity of dismounting.
Further, recessing groove length direction arc is provided with the seamed edge that the recessing groove intersects with rectangular channel to fall
Angle, the needle cap are provided with the arcwall face being bonded with arc angling.
By using above-mentioned technical proposal, by the arcwall face for setting arc angling and fitting therewith, lead to needle cap
Cross arcwall face to be in contact with rectangular channel, preferable guiding role is provided to needle cap；Moreover it is possible to prevent needle cap and rectangular channel
Stress concentration, plays the effect of protection needle cap.
Further, the connection mode of needle and the needle cap, it is consistent with the connection mode of needle cap and sliding block.
By using above-mentioned technical proposal, after needle cap is removed out of rectangular channel, needle can be taken from needle cap
Under, in order to individually be cleaned and safeguarded to it.
In conclusion the utility model has the advantages that：
1st, needle is installed on needle cap, and needle cap is detachably connected by rectangular channel and piston, and it is difficult to solve dismounting
The problem of；
2nd, under the spacing of rectangular channel and guiding, the rotation of needle cap is limited, solving the problems, such as can not sealing.
Brief description of the drawings
Fig. 1 is the structure diagram of the present embodiment；
Fig. 2 is the enlarged drawing of part A in Fig. 1.
In figure：1st, cylinder body；2nd, cylinder cap；3rd, piston；31st, rectangular channel；311st, recessing groove；3111st, card hole；4th, needle cap；41、
Needle；42nd, sliding block；421st, anti-drop block；5th, mounting hole；51st, fixture block；52nd, spring is compressed；6th, arc angling.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
The present embodiment is only explanation to the utility model, it is not the limitation to the utility model, this area skill
Art personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as
All protected in the right of the utility model be subject to Patent Law.
A kind of piston cylinder structure of hot flow path, is arranged in cylinder body 1 as shown in the figure, it includes cylinder body 1, cylinder cap 2 and sliding
Piston 3,3 bottom of piston is provided with needle cap 4, and 4 bottom of needle cap is provided with needle 41, the bottom wall vertical piston 3 of piston 3
The direction of motion is provided with rectangular channel 31, and the roof of needle cap 4 is provided with sliding block 42, and sliding block 42 slides along rectangular channel 31, rectangular channel
31 madial walls are provided with recessing groove 311 along 31 length direction of rectangular channel, and 42 lateral wall of sliding block is provided with what is slid along recessing groove 311
Anti-drop block 421；Needle cap 4 is detachably connected by rectangular channel 31 and piston 3, solves the problems, such as that needle 41 dismantles difficulty, square
Shape groove 31 can limit needle cap 4 and rotate, so that needle 41 will not be driven to rotate, solving the problems, such as can not sealing.
Anti-drop block 421 is provided with mounting hole 5 with the lateral wall that recessing groove 311 is bonded, and the sliding of mounting hole 5 is provided with fixture block
51,5 bottom wall of mounting hole is provided with the compression spring 52 being connected with fixture block 51, and 311 inner wall of recessing groove is provided with to be caught in for fixture block 51
Card hole 3111,51 end face of fixture block is spherical in shape, and card hole 3111 is sphere shrinkage pool, for being positioned to sliding block 42.
311 length direction of recessing groove is provided with arc angling 6, valve at the seamed edge that recessing groove 311 intersects with rectangular channel 31
Needle cap 4 is provided with the arcwall face being bonded with arc angling 6, prevents needle cap 4 and 31 stress concentration of rectangular channel, plays protection needle
The effect of cap 4.
The connection mode of needle 41 and needle cap 4, it is consistent with the connection mode of needle cap 4 and sliding block, easy to by needle
41 pull down from needle cap 4, meanwhile, needle 41 will not relatively rotate with needle cap 4.
Claims (5)
1. a kind of piston cylinder structure of hot flow path, including gray iron and sliding are arranged on the piston in cylinder body, its feature exists
In：The piston base is provided with needle cap, and the needle cap bottom is provided with needle, the bottom wall vertical piston of the piston
The direction of motion is provided with rectangular channel, and the roof of the needle cap is provided with the sliding block with rectangular channel sliding connection, the rectangular channel
Madial wall is provided with recessing groove along rectangular channel length direction, and the sliding block lateral wall is provided with the anti-drop block slid along recessing groove.
2. the piston cylinder structure of hot flow path according to claim 1, it is characterised in that：The anti-drop block is bonded with recessing groove
Lateral wall be provided with mounting hole, the mounting hole sliding is provided with fixture block, and the mounting hole bottom wall is provided with to be connected with fixture block
Compression spring, the recessing groove inner wall is provided with the card hole being caught in for fixture block.
3. the piston cylinder structure of hot flow path according to claim 2, it is characterised in that：The fixture block end face is spherical in shape, institute
It is sphere shrinkage pool to state card hole.
4. the piston cylinder structure of hot flow path according to claim 1, it is characterised in that：The recessing groove intersects with rectangular channel
Seamed edge at recessing groove length direction is provided with arc angling, the needle cap is provided with the arc being bonded with arc angling
Face.
5. according to the piston cylinder structure of claim 1-4 any one of them hot flow paths, it is characterised in that：The needle and needle
The connection mode of cap, it is consistent with the connection mode of needle cap and sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370581.3U CN207327498U (en) | 2017-10-23 | 2017-10-23 | A kind of piston cylinder structure of hot flow path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370581.3U CN207327498U (en) | 2017-10-23 | 2017-10-23 | A kind of piston cylinder structure of hot flow path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207327498U true CN207327498U (en) | 2018-05-08 |
Family
ID=62365796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721370581.3U Active CN207327498U (en) | 2017-10-23 | 2017-10-23 | A kind of piston cylinder structure of hot flow path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207327498U (en) |
-
2017
- 2017-10-23 CN CN201721370581.3U patent/CN207327498U/en active Active
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