CN204717111U - A kind of dual-piston structure cylinder for needle valve type hot runner system - Google Patents
A kind of dual-piston structure cylinder for needle valve type hot runner system Download PDFInfo
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- CN204717111U CN204717111U CN201520350548.9U CN201520350548U CN204717111U CN 204717111 U CN204717111 U CN 204717111U CN 201520350548 U CN201520350548 U CN 201520350548U CN 204717111 U CN204717111 U CN 204717111U
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Abstract
The utility model provides a kind of dual-piston structure cylinder for needle valve type hot runner system, comprise cylinder body, cylinder interior is provided with piston rod, described cylinder body comprises upper cylinder body and lower cylinder body, dividing plate is provided with between upper cylinder body and lower cylinder body, upper cylinder body and lower cylinder body are divided into two complete active chambers by described dividing plate, described piston rod is provided with upper piston and lower piston, upper piston is arranged in upper cylinder body, lower piston is arranged in lower cylinder body, also comprise needle, described needle is fixing on the piston rod by location adjusting device, two ventilating holes are provided with in cylinder body outside, cylinder interior is provided with the ventilation tank circuit communicated with ventilating hole, several rubber seal are also provided with in cylinder interior.This cylinder is moved up and down by air pressure driven plunger and drives valve needle movements, and this cylinder adopts dual piston cylinder, increases the ouput force of cylinder, meets actual production demand.
Description
Technical field
The utility model relates generally to needle valve type hot runner system field in plastic cement products, specifically a kind of dual-piston structure cylinder for needle valve type hot runner system.
Background technique
In the production of plasthetics, in order to control the fusion position of plastics, making goods have better outward appearance and Forming Quality, often adopting needle valve type hot runner system, utilize oil cylinder or cylinder to drive valve needle movements to control the closed to achieve the goal of hot mouth.
In actual use, cylinder efficient performance is easily acted upon by temperature changes, and easily leaks, normal the carrying out produced can be affected if dealt with improperly, cause unnecessary loss, in order to Leakage prevention to enterprise, manufacture oil cylinder higher to required precision, therefore cost is high.And cylinder operation medium is air, the characteristic temperature influence of air is less, and relative oil cylinder, cylinder reaction velocity is fast, but cylinder operation pressure is low, when physical dimension is identical, cylinder is much smaller than the ouput force of oil cylinder, because the ouput force of cylinder is not enough, can cause the phenomenon that needle work is not smooth, stuck, sealing is not in place, cause damp production, or have a strong impact on cast gate quality on product.
In sum, can study a kind of cylinder of ouput force of intensifying cylinder, make cylinder can meet actual production demand, be the technical problem that related domain staff needs solution badly.
Model utility content
The technical problem that the utility model solves is, for the deficiency of current technology, from practical application, a kind of dual-piston structure cylinder for needle valve type hot runner system is provided, this cylinder is moved up and down by air pressure driven plunger and drives valve needle movements, this cylinder adopts dual piston cylinder, increases the ouput force of cylinder, meets actual production demand.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of dual-piston structure cylinder for needle valve type hot runner system, comprise cylinder body, cylinder interior is provided with piston rod, described cylinder body comprises upper cylinder body and lower cylinder body, dividing plate is provided with between upper cylinder body and lower cylinder body, upper cylinder body and lower cylinder body are divided into two complete active chambers by described dividing plate, described piston rod is provided with upper piston and lower piston, upper piston is arranged in upper cylinder body, lower piston is arranged in lower cylinder body, also comprise needle, described needle is fixing on the piston rod by location adjusting device, two ventilating holes are provided with in cylinder body outside, cylinder interior is provided with the ventilation tank circuit communicated with ventilating hole, several rubber seal are also provided with in cylinder interior.
Described location adjusting device comprises the set screw being fixed on piston rod inner by screw thread, set screw inside is provided with base rice screw, is provided with limited screw below set screw, is provided with lower hole slot below described limited screw, be provided with a glass head above described needle, described cup head hangs in lower hole slot.
Described lower piston and piston rod are an entirety, and described upper piston is dismountable to be fixed on the piston rod.
Described upper piston is fixing on the piston rod by jump ring.
Described ventilating hole place is provided with gas-tpe fitting.
Described dividing plate is connected with upper cylinder body and lower cylinder body with retaining screw by locating stud.
Described cylinder base is provided with the cylinder fixed block of low-thermal conductivity.
Described cylinder fixed block outside is provided with two inletes, and cylinder fixed block inside is provided with the annular cooling water road communicated with inlet.
Described inlet place is provided with water pipe adapter.
The beneficial effects of the utility model:
1, in the air cylinder structure in the utility model, traditional cylinder cavity is divided into upper and lower two-part, form two chambeies, two pistons form the effect of double-piston superposition respectively in two independently chamber, it is simultaneously stressed that aggregated(particle) structure can realize two piston faces, make onesize cylinder ouput force increase twice nearly, make air cylinder structure more practical, meet processing and the production of needle valve type hot runner.
2, the location adjusting device in the utility model can be fixed and regulate needle, regulates simple, only base rice screw need be regulated just can to regulate the length of needle very easily.
2, in two piston structures in the utility model, a piston and piston rod one, another piston is fixing on the piston rod by jump ring, and reach the motion of piston synchronous, structure is simple, dismounting is easy to maintenance.
3, the fixing pin in the utility model and retaining screw play the role of positioning, and can prevent dividing plate and upper and lower cylinder body from rotating.
4, the cylinder fixed block in the utility model effectively can reduce the transmission of heat, avoids the rising of temperature cylinder, better can fix cylinder simultaneously.
5, the cooling water channel in the utility model, can reduce the bulk temperature of cylinder by cooling water, thus the working life of each component of protection cylinder.
6, the water pipe adapter in the utility model, gas-tpe fitting, cylinder fixed block are the auxiliary accessories of cylinder when using in needle valve type hot runner, cylinder easy to use.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model plan view structural representation;
Accompanying drawing 2 is the utility model plan view structural representation;
Accompanying drawing 3 is structural representation when the utility model needle moves upward;
Accompanying drawing 4 is structural representation when the utility model needle moves downward.
Label shown in accompanying drawing: 1, piston rod; 2, set screw; 3, base rice screw; 4, upper piston; 5, limited screw; 6, upper cylinder body; 7, dividing plate; 8, lower cylinder body; 9, lower piston; 10, needle; 11, cylinder fixed block; 12, rubber seal; 13, gas-tpe fitting; 14, water pipe adapter; 15, locating stud; 16, retaining screw.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in figure 1 and 2, a kind of dual-piston structure cylinder for needle valve type hot runner system, comprise cylinder body, cylinder interior is provided with piston rod 1, described cylinder body comprises upper cylinder body 6 and lower cylinder body 8, dividing plate 7 is provided with between upper cylinder body 6 and lower cylinder body 8, upper cylinder body 6 and lower cylinder body 8 are divided into two complete active chambers by described dividing plate 7, described piston rod 1 is provided with upper piston 4 and lower piston 9, upper piston 4 is arranged in upper cylinder body 6, lower piston 9 is arranged in lower cylinder body 8, also comprise needle 10, described needle 10 is fixed on piston rod 1 by location adjusting device, two ventilating holes are provided with in cylinder body outside, cylinder interior is provided with the ventilation tank circuit communicated with ventilating hole, several rubber seal 12 are also provided with in cylinder interior, as a kind of preferred version, location adjusting device comprises the set screw 2 being fixed on piston rod 1 inside by screw thread, set screw 2 inside is provided with base rice screw 3, limited screw 5 is provided with below set screw 2, described limited screw 5 bottom is provided with lower hole slot, described needle 10 top is provided with a glass head, described cup head hangs in lower hole slot.
This cylinder in the working principle of a whole set of TOP-TIP is: cylinder is moved up and down by air pressure driven plunger and drives valve needle movements, thus reach the object of the open and close of needle, dividing plate 7 is fixed with upper cylinder body 6 and lower cylinder body 8 by locating stud 15 and retaining screw 16, upper cylinder body 6 and lower cylinder body 8 are divided into two independently active chambers, a piston is provided with in each active chamber, dividing plate 7 upper and lower surface is all designed with vent slot line structure, needle 10 is fixed on piston rod 1 from lower cylinder body 8, gas is by enterprising gas port, piston just up moves, gas is by lower suction port, piston just down moves, cylinder is exactly realize moving up and down thus driving the motion of needle of piston by constantly changing.In the location adjusting device of this model utility, the cup head of needle 10 hangs over the lower hole slot of limited screw 5, base rice screw 3 and set screw 2 play the effect of adjustment and fixing needle 10, needle 10 can be regulated to stretch out the length of lower cylinder body 8 by regulating base rice screw 3, rubber seal 12 is separately positioned on piston rod 1 and upper cylinder body 6 joint, piston rod 1 and lower cylinder body 8 joint, piston rod 1 and dividing plate 7 joint, upper piston 4 and upper cylinder body 6 joint, lower piston 9 and lower cylinder body 8 joint, and dividing plate 7 and upper cylinder body 6 and lower cylinder body 8 joint, this cylinder that is arranged so that of rubber seal 12 has better sealing and stablizes.
Dual piston cylinder pulling force formation basic theory as shown in Figure 3, thrust formation basic theory as shown in Figure 4, when producing injecting products, needle 10 will be opening state, sizing material is just injected in die cavity by Jiao Kou and is injection molded into product, , detailed process is that injection machine provides injection moulding signal, signal connects gas port air inlet by peripheral equipment control cylinder, as in Fig. 3, pressurized gas enters cylinder body by two ventilating holes, gas enters into the bottom of upper piston 4 and lower piston 9 through the ventilation tank circuit of cylinder interior, depended on pressure promotes upper piston 4 and lower piston 9 moves upward, thus make piston rod 1 form pulling force to pull needle 10 to move upward, after production completes during ejecting product, needle 10 will be closed condition, detailed process is: Signal transmissions is connect gas port air inlet to peripheral equipment control cylinder by injection machine, as in Fig. 4, pressurized gas enters cylinder body by another in two ventilating holes, gas enters into the top of upper piston 4 and lower piston 9 through the ventilation tank circuit of cylinder interior, and depended on pressure promotes upper piston 4 and lower piston 9 moves downward, thus makes piston rod 1 form thrust to promote needle 10 and move downward.From the structural characteristics of this cylinder, this structure can realize upper piston 4 and lower piston 9 surface is simultaneously stressed, makes onesize cylinder ouput force increase 2 times nearly, cylinder is used more, meets the use in valve needle type hot flow passage system.
The water pipe adapter 14 mentioned in technical solutions of the utility model, gas-tpe fitting 13 and cylinder fixed block 11 are cylinder at needle valve heating power to auxiliary accessories during middle use, in use, cylinder is locked on flow distribution plate by cylinder fixed block 11, cylinder fixed block 11 uses the material of low-thermal conductivity to process, effectively can reduce the transmission of heat, avoid the rising of temperature cylinder, annular water channel is designed in cylinder fixed block 11, there is higher heat abstraction efficiency in this kind of water route, this is the special applied environment for cylinder and designs, relatively be suitable for cylinder operation in high temperature environments.When hot runner product starts to produce; first by water pipe adapter to cylinder activation cooling water; then heat to TOP-TIP; normal production is started after being raised to assigned temperature; in the process; cylinder water route can be taken away the temperature that flow distribution plate passes to cylinder endlessly, plays the effect of protection cylinder.When production completes, after flow distribution plate stops heating, cylinder fully cools cylinder about still needing to connect cooling water half an hour, in order to protect the Sealing in cylinder, extends the working life of cylinder.
Claims (9)
1. the dual-piston structure cylinder for needle valve type hot runner system, comprise cylinder body, cylinder interior is provided with piston rod (1), it is characterized in that: described cylinder body comprises upper cylinder body (6) and lower cylinder body (8), dividing plate (7) is provided with between upper cylinder body (6) and lower cylinder body (8), upper cylinder body (6) and lower cylinder body (8) are divided into two complete active chambers by described dividing plate (7), described piston rod (1) is provided with upper piston (4) and lower piston (9), upper piston (4) is arranged in upper cylinder body (6), lower piston (9) is arranged in lower cylinder body (8), also comprise needle (10), described needle (10) is fixed on piston rod (1) by location adjusting device, two ventilating holes are provided with in cylinder body outside, cylinder interior is provided with the ventilation tank circuit communicated with ventilating hole, several rubber seal (12) are also provided with in cylinder interior.
2. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 1, it is characterized in that: described location adjusting device comprises the set screw (2) being fixed on piston rod (1) inside by screw thread, set screw (2) inside is provided with base rice screw (3), set screw (2) below is provided with limited screw (5), described limited screw (5) bottom is provided with lower hole slot, described needle (10) top is provided with a glass head, and described cup head hangs in lower hole slot.
3. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 1, it is characterized in that: described lower piston (9) and piston rod (1) are integrative-structures, and described upper piston (4) is dismountable to be fixed on piston rod (1).
4. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 3, is characterized in that: described upper piston (4) is fixed on piston rod (1) by jump ring.
5. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 1, is characterized in that: described ventilating hole place is provided with gas-tpe fitting (13).
6. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 1, is characterized in that: described dividing plate (7) is connected with upper cylinder body (6) and lower cylinder body (8) with retaining screw (16) by locating stud (15).
7. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 1, is characterized in that: described cylinder base is provided with the cylinder fixed block (11) of low-thermal conductivity.
8. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 7, it is characterized in that: described cylinder fixed block (11) outside is provided with two inletes, and cylinder fixed block (11) inside is provided with the annular cooling water road communicated with inlet.
9. a kind of dual-piston structure cylinder for needle valve type hot runner system as claimed in claim 8, is characterized in that: described inlet place is provided with water pipe adapter (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350548.9U CN204717111U (en) | 2015-05-27 | 2015-05-27 | A kind of dual-piston structure cylinder for needle valve type hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350548.9U CN204717111U (en) | 2015-05-27 | 2015-05-27 | A kind of dual-piston structure cylinder for needle valve type hot runner system |
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| CN204717111U true CN204717111U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520350548.9U Active CN204717111U (en) | 2015-05-27 | 2015-05-27 | A kind of dual-piston structure cylinder for needle valve type hot runner system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971970A (en) * | 2016-07-27 | 2016-09-28 | 苏州好特斯模具有限公司 | Air cylinder system for rapid and adjustable valve needle |
| CN106523464A (en) * | 2016-12-30 | 2017-03-22 | 深圳市银宝山新科技股份有限公司 | Three-layer piston cylinder |
| CN107244042A (en) * | 2017-08-08 | 2017-10-13 | 东莞市热恒注塑科技有限公司 | An a kind of mouth bull special double-layer cylinder |
| CN107457319A (en) * | 2017-08-02 | 2017-12-12 | 宁波精达成形装备股份有限公司 | A kind of clamping jaw clamping device of electric tube expander |
| CN109159380A (en) * | 2018-11-09 | 2019-01-08 | 哈希斯热流道科技（苏州）有限公司 | A kind of injection mold double-piston needle-valve driving device |
| CN110219797A (en) * | 2019-06-18 | 2019-09-10 | 苏州好特斯模具有限公司 | Quick-change type Double decker piston vertical cooling cylinder |
| CN113048114A (en) * | 2021-02-23 | 2021-06-29 | 苏州好特斯模具有限公司 | Single-layer circular integral cylinder driving system |
-
2015
- 2015-05-27 CN CN201520350548.9U patent/CN204717111U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971970A (en) * | 2016-07-27 | 2016-09-28 | 苏州好特斯模具有限公司 | Air cylinder system for rapid and adjustable valve needle |
| CN106523464A (en) * | 2016-12-30 | 2017-03-22 | 深圳市银宝山新科技股份有限公司 | Three-layer piston cylinder |
| CN107457319A (en) * | 2017-08-02 | 2017-12-12 | 宁波精达成形装备股份有限公司 | A kind of clamping jaw clamping device of electric tube expander |
| CN107244042A (en) * | 2017-08-08 | 2017-10-13 | 东莞市热恒注塑科技有限公司 | An a kind of mouth bull special double-layer cylinder |
| CN109159380A (en) * | 2018-11-09 | 2019-01-08 | 哈希斯热流道科技（苏州）有限公司 | A kind of injection mold double-piston needle-valve driving device |
| CN109159380B (en) * | 2018-11-09 | 2023-12-12 | 哈希斯热流道科技（苏州）有限公司 | Injection mold double-piston needle valve driving device |
| CN110219797A (en) * | 2019-06-18 | 2019-09-10 | 苏州好特斯模具有限公司 | Quick-change type Double decker piston vertical cooling cylinder |
| CN113048114A (en) * | 2021-02-23 | 2021-06-29 | 苏州好特斯模具有限公司 | Single-layer circular integral cylinder driving system |
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| GR01 | Patent grant |