CN204054510U - A kind of without hermetically-sealed construction cylinder and hot runner mould thereof - Google Patents
A kind of without hermetically-sealed construction cylinder and hot runner mould thereof Download PDFInfo
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- CN204054510U CN204054510U CN201420523338.0U CN201420523338U CN204054510U CN 204054510 U CN204054510 U CN 204054510U CN 201420523338 U CN201420523338 U CN 201420523338U CN 204054510 U CN204054510 U CN 204054510U
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- cylinder
- hermetically
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- sealed construction
- needle
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Abstract
The utility model discloses a kind of without hermetically-sealed construction cylinder and hot runner mould thereof, this comprises cylinder cap, cylinder body and cylinder bottom without hermetically-sealed construction cylinder, cylinder cap and cylinder bottom lay respectively at the end of cylinder body, piston is provided with in cylinder body, wherein: piston is connected on needle, an adaptive cover is provided with, matched in clearance between the inwall of adaptive cover and the outer wall of needle, matched in clearance between the inwall of cylinder body and the outer wall of piston between cylinder bottom and needle; Due to be equivalent to piston rod needle and adaptive overlap between and between cylinder body and piston, be all provided with gap, in working order, sealed by the air film (or oil film) be full of in gap, eliminate thus and use the seal member such as sealing ring or dead turn, and then avoid physical seal part and occur because long term high temperature uses damaging or ageing failure and to producing the trouble that causes, extend service life, reduce the proportion of goods damageds, ensure that the quality of produced product.
Description
Technical field
The utility model relates to injection mold field, in particular a kind of without hermetically-sealed construction cylinder and hot runner mould thereof.
Background technology
At present, what the cylinder in hot runner mould adopted is all some more common hermetically-sealed constructions, between its each parts especially between moving component and non-moving parts, the place cooperatively interacted all is provided with the seal member such as sealing ring or dead turn, occurs to prevent the phenomenon of mutually collaborating.
But, due to the particularity of hot runner mould, in the use procedure that it is long-term, the seal members such as the sealing ring in cylinder or dead turn are because the frequent appearance of the long term high temperature meeting of use damages or the situation of ageing failure, bring a lot of troubles to production thus, even can affect the friendship phase of production.
Therefore, prior art still haves much room for improvement and develops.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of without hermetically-sealed construction cylinder, and can increase the service life, reduce the wastage rate.
Meanwhile, the utility model also provides a kind of hot runner mould, can avoid the trouble because the seal members such as the sealing ring in its cylinder used or dead turn cause to production because of long term high temperature use appearance damage or ageing failure.
The technical solution of the utility model is as follows: a kind of without hermetically-sealed construction cylinder, comprise cylinder cap, cylinder body and cylinder bottom, cylinder cap and cylinder bottom lay respectively at the end of cylinder body, piston is provided with in cylinder body, wherein: piston is connected on needle, an adaptive cover is provided with, matched in clearance between the inwall of adaptive cover and the outer wall of needle, matched in clearance between the inwall of cylinder body and the outer wall of piston between cylinder bottom and needle.
Described without hermetically-sealed construction cylinder, wherein: the end face of described cylinder bottom is provided with locating dowel, axially arranging along the moving direction of piston of locating dowel, the end face of piston is provided with the locating hole be slidably matched with locating dowel, when piston moves to cylinder cap place, the top of locating dowel is in locating hole.
Described without hermetically-sealed construction cylinder, wherein: described adaptation cover is fixed on cylinder bottom via a thread bush.
Described without hermetically-sealed construction cylinder, wherein: described cylinder cap is connected by the first retainer ring of a band alignment pin with the junction of cylinder body.
Described without hermetically-sealed construction cylinder, wherein: described cylinder bottom is connected by the second retainer ring of a band alignment pin with the junction of cylinder body.
Described without hermetically-sealed construction cylinder, wherein: the outer wall of described cylinder cap is provided with the A air inlet being communicated to cylinder interior space.
Described without hermetically-sealed construction cylinder, wherein: the outer wall of described cylinder bottom is provided with the B air inlet being communicated to cylinder interior space.
A kind of hot runner mould, comprise flow distribution plate, thermal insulation board and cylinder, thermal insulation board is fixed on flow distribution plate by the first clamping screw, and cylinder is fixed on thermal insulation board by the second clamping screw, wherein: described cylinder for according to any one of above-mentioned without hermetically-sealed construction cylinder.
Described hot runner mould, wherein: between described cylinder and thermal insulation board, be provided with heat insulation locating ring.
Described hot runner mould, wherein: described thermal insulation board is provided with a valve needle cover, matched in clearance between valve needle cover and needle, valve needle cover two ends extend in heat insulation locating ring and flow distribution plate respectively.
A kind of hot runner mould provided by the utility model and without hermetically-sealed construction cylinder, between overlapping at the needle and adaptation that are equivalent to piston rod, and all gap is provided with between cylinder body and piston, in working order, sealed by the air film (or oil film) be full of in gap, eliminate thus and use the seal member such as sealing ring or dead turn, and then avoid physical seal part and occur because long term high temperature uses damaging or ageing failure and to producing the trouble that causes, extend service life, reduce the proportion of goods damageds, ensure that the quality of produced product.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the utility model without hermetically-sealed construction cylinder.
Detailed description of the invention
Below with reference to accompanying drawing, described in detail detailed description of the invention of the present utility model and embodiment, described specific embodiment, only in order to explain the utility model, is not intended to limit detailed description of the invention of the present utility model.
As shown in Figure 1, Fig. 1 is the longitudinal sectional view of the utility model without hermetically-sealed construction cylinder, and this comprises cylinder cap 110, cylinder body 120 and cylinder bottom 130 without hermetically-sealed construction cylinder; Cylinder cap 110 is fastened on one end of cylinder body 120, the two is sealed by the end face contacted with each other, be with the first retainer ring 112 of alignment pin to be fixed in the junction of cylinder cap 110 and cylinder body 120, the outer wall (or end face) of cylinder cap 110 is provided with the A air inlet 111 being communicated to cylinder body 120 inner space; Cylinder bottom 130 is fastened on the other end of cylinder body 120, the two is also sealed by the end face contacted with each other, be with the second retainer ring 123 of alignment pin to be fixed in the junction of cylinder bottom 130 and cylinder body 120, the outer wall of cylinder bottom 130 be provided with the B air inlet 133 being communicated to cylinder body 120 inner space; Piston 140 is provided with in the inner space of cylinder body 130, the improvement of the utility model cylinder is, piston 140 is connected directly between on the needle 250 of hot runner mould, needle 250 overlaps 150 as being provided with an adaptation between piston rod and cylinder bottom 130, the adaptive cover inwall of 150 and the outer wall matched in clearance of needle 250, the inwall of cylinder body 120 and the outer wall matched in clearance of piston 140, the gap that the latter is minimum can also reduce the frictional resistance between piston 140 and cylinder body 120.
Above-mentionedly also claim the Safety Box cylinder of structure without hermetically-sealed construction cylinder, the cylinder of this Safety Box structure replaces piston rod with the needle 250 of hot runner mould, piston 140 is directly fixed on the rear end of needle 250, on the one hand, piston 140 is provided with the counterbore holding needle 250 head, the oral area of counterbore is provided with screw thread, is fixed on piston 140 by being screwed into a fixed screw 145 by needle 250; On the other hand, overlap 150 with the adaptation of needle 250 bar portion matched in clearance also with reference to similar counter bore structure, and to be fixed on cylinder bottom 130 with a thread bush 135.
In the preferred embodiment of the utility model without hermetically-sealed construction cylinder, owing to leaving gap between the inwall of cylinder body 120 and the outer wall of piston 140, self easily stuck phenomenon is there is because tilting or rotate when piston 140 is movable in cylinder body 120, for this reason, uniformly on end face inside cylinder bottom 130 be provided with locating dowel 134, axially arranging along the moving direction of piston 140 of locating dowel 134, on the end face that piston 140 is relative with cylinder bottom 130, be provided with the locating hole 144 be slidably matched with locating dowel 134 simultaneously, even if piston 140 move to cylinder cap 110 place and from cylinder bottom 130 farthest time, the small part top of locating dowel 134 is also in locating hole 144.
Based on above-mentioned without hermetically-sealed construction cylinder, the utility model also proposed a kind of hot runner mould, as shown in Figure 1, this hot runner mould comprises flow distribution plate 210, thermal insulation board 220 and cylinder, thermal insulation board 220 is fixed on flow distribution plate 210 by the first clamping screw 201, and cylinder is fixed on thermal insulation board 220 by the second clamping screw 202; Preferably, between cylinder and thermal insulation board 220, be provided with heat insulation locating ring 230, transfer heat in use on cylinder to stop mould further.
Further, thermal insulation board 220 is provided with a valve needle cover 240, matched in clearance between valve needle cover 240 and needle 250, valve needle cover 240 two ends extend in heat insulation locating ring 230 and flow distribution plate 210 respectively; Because the adaptation cover inwall of 150 and the outer wall of needle 250 leave gap, this minimum gap also can reduce needle 250 and the adaptive frictional resistance overlapped between 150, and adaptive cover 150 can preferentially select the superengineering plastics of ability 400 DEG C of high temperature to process; In addition, for cylinder, the gas spilt from the gap between adaptation cover 150 and needle 250 can also cool needle 250 and valve needle cover 240, to reduce the temperature of needle 250, thus ensures the regular event of cylinder long-term stability.
Should be understood that, the foregoing is only preferred embodiment of the present utility model, be not sufficient to limit the technical solution of the utility model, for those of ordinary skills, within spirit of the present utility model and principle, can be increased and decreased according to the above description, replace, conversion or improvement, such as, piston can be fixed on one end of piston rod in the conventional mode, and needle also can be fixed on the other end of piston rod in the conventional mode, and all these increases and decreases, replace, conversion or the technical scheme after improving, all should belong to the protection domain of the utility model claims.
Claims (8)
1. one kind without hermetically-sealed construction cylinder, comprise cylinder cap, cylinder body and cylinder bottom, cylinder cap and cylinder bottom lay respectively at the end of cylinder body, piston is provided with in cylinder body, it is characterized in that: piston is connected on needle, an adaptive cover is provided with, matched in clearance between the inwall of adaptive cover and the outer wall of needle, matched in clearance between the inwall of cylinder body and the outer wall of piston between cylinder bottom and needle.
2. according to claim 1 without hermetically-sealed construction cylinder, it is characterized in that: the end face of described cylinder bottom is provided with locating dowel, axially arranging along the moving direction of piston of locating dowel, the end face of piston is provided with the locating hole be slidably matched with locating dowel, when piston moves to cylinder cap place, the top of locating dowel is in locating hole.
3. according to claim 1 without hermetically-sealed construction cylinder, it is characterized in that: described adaptation cover is fixed on cylinder bottom via a thread bush.
4. according to claim 1 without hermetically-sealed construction cylinder, it is characterized in that: described cylinder cap is connected by the first retainer ring of a band alignment pin with the junction of cylinder body.
5. according to claim 1 without hermetically-sealed construction cylinder, it is characterized in that: described cylinder bottom is connected by the second retainer ring of a band alignment pin with the junction of cylinder body.
6. according to claim 1 without hermetically-sealed construction cylinder, it is characterized in that: the outer wall of described cylinder cap is provided with the A air inlet being communicated to cylinder interior space.
7. according to claim 1 without hermetically-sealed construction cylinder, it is characterized in that: the outer wall of described cylinder bottom is provided with the B air inlet being communicated to cylinder interior space.
8. a hot runner mould, comprise flow distribution plate, thermal insulation board and cylinder, thermal insulation board is fixed on flow distribution plate by the first clamping screw, and cylinder is fixed on thermal insulation board by the second clamping screw, it is characterized in that: described cylinder according to any one of claim 1 to 7 without hermetically-sealed construction cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523338.0U CN204054510U (en) | 2014-09-12 | 2014-09-12 | A kind of without hermetically-sealed construction cylinder and hot runner mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523338.0U CN204054510U (en) | 2014-09-12 | 2014-09-12 | A kind of without hermetically-sealed construction cylinder and hot runner mould thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204054510U true CN204054510U (en) | 2014-12-31 |
Family
ID=52196091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420523338.0U Expired - Fee Related CN204054510U (en) | 2014-09-12 | 2014-09-12 | A kind of without hermetically-sealed construction cylinder and hot runner mould thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204054510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111688129A (en) * | 2020-06-11 | 2020-09-22 | 杭州超特流体设备有限公司 | Fluid circulation mechanism of hot runner system |
-
2014
- 2014-09-12 CN CN201420523338.0U patent/CN204054510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111688129A (en) * | 2020-06-11 | 2020-09-22 | 杭州超特流体设备有限公司 | Fluid circulation mechanism of hot runner system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: The town of Changan in Guangdong province Dongguan usha community road 523853 No. 246 Long Industrial Park building D Patentee after: Sino Mould Component (Dongguan) Co., Ltd. Address before: Southwest longroad Changan Jin Ha Industrial Zone Henan 523853 Guangdong province Dongguan City No. 19 Patentee before: Sino Mould Component (Dongguan) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190912 |