CN211031047U - Pressurizing cylinder for needle valve type hot runner system - Google Patents
Pressurizing cylinder for needle valve type hot runner system Download PDFInfo
- Publication number
- CN211031047U CN211031047U CN201921521988.0U CN201921521988U CN211031047U CN 211031047 U CN211031047 U CN 211031047U CN 201921521988 U CN201921521988 U CN 201921521988U CN 211031047 U CN211031047 U CN 211031047U
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- cylinder
- cylinder body
- piston rod
- needle
- hot runner
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- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
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Abstract
The utility model relates to a cylinder technical field discloses a pressurized cylinder for needle valve formula hot runner system, include: the cylinder body, the inside baffle that is used for separating into two complete working chambeies with the cylinder body that is provided with of cylinder body, the inside of cylinder body is provided with the piston rod that is used for driving the needle motion, the piston rod is located a working chamber that the cylinder body is close to the cylinder head, be equipped with the lower piston with piston rod fixed connection in another working chamber of cylinder body, the outside of cylinder body is equipped with a plurality of blow vents, the inside of cylinder body is equipped with the communicating air channel with the blow vent, be provided with the seal assembly who is used for sealed pressurized cylinder in. Through seal assembly's sealed effect, strengthened the leakproofness and the stability of cylinder, the baffle is separated into two complete working chambers with the cylinder body, and compressed gas passes through the blow vent and gets into, and the up-and-down motion is realized with lower piston to the drive piston rod, and then drives the needle and carry out the up-and-down motion, through the setting of two piston structures, has increased the output power of cylinder, has satisfied actual production demand.
Description
Technical Field
The utility model relates to a cylinder technical field especially relates to a pressurized cylinder for needle valve formula hot runner system.
Background
In the production of plastic products, in order to control the fusion position of plastic and make the products have better appearance and molding quality, a needle type hot runner system is usually adopted, and an oil cylinder or an air cylinder is used for driving a valve needle to move to control the closing of a hot nozzle so as to achieve the purpose.
The working medium of the cylinder is air, the air characteristic is less influenced by temperature, and the cylinder has high reaction speed compared with an oil cylinder. However, the cylinders commonly used today are all operated by a single cylinder block. Under the condition that the cylinder has the same output force compared with the oil cylinder, the cylinder is large in size, small in total movement stroke and high in cost, and due to the fact that air pressure is insufficient and the driving force is small in practical application, the phenomena that a valve needle is not smooth in work, is blocked and is not in place for sealing glue are easily caused, production stagnation is caused, and the sprue effect and the quality of an injection molding product are directly influenced. Although the output force of the oil cylinder is relatively large, in actual use, the working performance of the oil cylinder is easily influenced by temperature change and is easy to leak. If improper treatment can affect normal production, unnecessary loss is caused to enterprises. In order to prevent leakage, the precision requirement for manufacturing the oil cylinder is high, and the cost is high.
Therefore, how to improve the output force of the cylinder so that the cylinder can meet the actual production requirement becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in improving the output power of cylinder so that the cylinder can satisfy the actual production demand.
To this end, according to a first aspect, the embodiments of the present invention disclose a supercharge cylinder for a needle valve type hot runner system, including: the cylinder body, the one end fixedly connected with cylinder head of cylinder body, other end fixedly connected with cylinder bottom, the inside being provided with of cylinder body be used for with the baffle of two complete working chambers is separated into to the cylinder body, the inside of cylinder body is provided with the piston rod that is used for driving the needle motion, the piston rod is located the cylinder body is close to a working chamber of cylinder head, another working chamber of cylinder body be equipped with piston rod fixed connection's lower piston, the outside of cylinder body is equipped with a plurality of blow vents, the inside of cylinder body be equipped with the communicating air channel of blow vent, be provided with the seal assembly who is used for sealed pressure boost cylinder in the cylinder body.
The utility model discloses further set up to, it is right to be provided with on the piston rod the needle position carries out the positioning control device of location regulation.
The utility model discloses further set up to, the positioning control device includes: the positioning screw is arranged inside the piston rod and is in threaded connection with the piston rod; and the limiting block is arranged at one end of the positioning screw, is connected with the valve needle and is used for limiting the current position of the valve needle in the cylinder body.
The utility model discloses further set up to, set up the lower hole groove in the stopper, the upper portion of needle be equipped with the cup head that the lower hole groove was contradicted.
The utility model discloses further set up as, seal assembly includes: the first sealing ring is arranged at the contact position of the piston rod and the cylinder body and used for preventing gas leakage; and the second sealing ring is arranged at the contact position of the cylinder body, the lower piston and the bottom cover and used for preventing gas leakage.
The utility model discloses further set up as, seal assembly still includes: a third seal ring provided in a contact seal between the cylinder head and the cylinder block, for preventing gas leakage; and the fourth sealing ring is arranged on the cylinder body, and the contact sealing of the bottom cover and the template is used for preventing gas leakage.
The utility model discloses further set up to, first sealing washer the second sealing washer the third sealing washer with the fourth sealing washer is rubber seal.
The utility model discloses following beneficial effect has: through seal assembly's sealed effect, strengthened the leakproofness and the stability of cylinder, the baffle is separated into two complete working chambers with the cylinder body, and compressed gas passes through the blow vent and gets into, and the up-and-down motion is realized with lower piston to the drive piston rod, and then drives the needle and carry out the up-and-down motion, through the setting of two piston structures, has increased the output power of cylinder, has satisfied actual production demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a supercharge cylinder for a needle valve type hot runner system disclosed in the present embodiment.
Reference numerals: 1. a cylinder body; 2. a cylinder head; 3. a cylinder bottom cover; 4. a partition plate; 5. a piston rod; 6. a lower piston; 7. a vent; 8. a vent channel; 9. a positioning adjustment device; 91. a set screw; 92. a limiting block; 921. a lower hole groove; 10. a valve needle; 101. a cup head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The embodiment of the utility model discloses a pressurized cylinder for needle valve formula hot runner system, as shown in figure 1, include: the cylinder body 1, the one end fixedly connected with cylinder head 2 of cylinder body 1, other end fixedly connected with cylinder bottom 3, cylinder body 1 is inside to be provided with and to be used for separating into the baffle 4 of two complete working chambeies with cylinder body 1, the inside of cylinder body 1 is provided with and is used for driving piston rod 5 of needle 10 motion, piston rod 5 is located cylinder body 1 and is close to a working chamber of cylinder head 2, be equipped with lower piston 6 with piston rod 5 fixed connection in another working chamber of cylinder body 1, the outside of cylinder body 1 is equipped with a plurality of blow vents 7, the inside of cylinder body 1 is equipped with and communicates with each other air channel 8 with blow vent 7, be provided with the seal assembly who is used for. In the specific implementation process, the vent 7 comprises an upper air inlet and a lower air inlet, compressed air passes through the upper air inlet, the piston rod 5 and the lower piston 6 move downwards, air passes through the lower air inlet, and the piston rod 5 and the lower piston 6 move upwards.
It should be noted that, through seal assembly's sealed effect, strengthened the leakproofness and the stability of cylinder, baffle 4 separates into two complete working chambers with cylinder body 1, and compressed gas passes through vent 7 and gets into, and drive piston rod 5 realizes the up-and-down motion with lower piston 6, and then drives needle 10 and carry out the up-and-down motion, through the setting of two piston structures, has increased the output power of cylinder, has satisfied actual production demand.
As shown in fig. 1, the piston rod 5 is provided with a positioning adjustment device 9 for positioning adjustment of the position of the valve needle 10.
As shown in fig. 1, the positioning adjustment device 9 includes: a set screw 91 disposed inside the piston rod 5 and threadedly connected to the piston rod 5; and the limiting block 92 is arranged at one end of the positioning screw 91, connected with the valve needle 10, and used for limiting the current position of the valve needle 10 in the cylinder body 1.
As shown in fig. 1, a lower hole slot 921 is formed in the stopper 92, and a cup 101 abutting against the lower hole slot is provided on the upper portion of the valve needle 10.
As shown in fig. 1, the sealing assembly includes: a first seal ring disposed at a contact position of the piston rod 5 and the cylinder 1 for preventing gas leakage; and the second sealing ring is arranged at the contact position of the cylinder body 1, the lower piston 6 and the bottom cover and is used for preventing gas leakage.
As shown in fig. 1, the seal assembly further comprises: a third seal ring provided in the contact seal between the cylinder head 2 and the cylinder block 1 for preventing gas leakage; the fourth sealing ring is arranged at the contact position of the cylinder body 1 and the bottom cover 3 with the mould and is used for preventing gas leakage;
in the specific implementation process, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all rubber sealing rings.
The working process is as follows: when an injection molding product is produced, the valve needle 10 is in an open state, the glue material can be injected into a mold cavity through a glue opening to be injected into the product, the specific process is that an injection molding signal is given by the injection molding machine, the signal controls the air inlet of an air cylinder air receiving opening through external equipment, compressed air enters the cylinder body 1 through air holes at the lower part of the plurality of air vents 7, the air enters the lower parts of the piston rod 5 and the lower piston 6 through an air vent groove 8 in the cylinder body 1, the piston rod 5 and the lower piston 6 are pushed to move upwards by pressure, and therefore the piston rod 5 is enabled to form pulling force to pull the valve needle 10 to move upwards; when ejecting the product after the production is finished, the valve needle 10 is in a closing state, and the specific process is as follows: the injection molding machine transmits signals to an external device to control air inlets of air cylinders, compressed air enters the cylinder body 1 through vent holes in the upper portions of the plurality of vent holes 7, the air enters the upper portions of the piston rod 5 and the lower piston 6 through vent grooves 8 in the cylinder body 1, and the piston rod 5 and the lower piston 6 are pushed to move downwards by pressure, so that the piston rod 5 is driven to form thrust to push the valve needle 10 to move downwards.
The working principle is as follows: through seal assembly's sealed effect, strengthened the leakproofness and the stability of cylinder, two complete working chambers are separated into with cylinder body 1 to baffle 4, and compressed gas passes through vent 7 and gets into, and drive piston rod 5 realizes the up-and-down motion with lower piston 6, and then drives needle 10 and carry out the up-and-down motion, through the setting of double-piston structure, has increased the output power of cylinder, has satisfied actual production demand.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (7)
1. A supercharge cylinder for a needle valve hot runner system, comprising: the cylinder body, the one end fixedly connected with cylinder head of cylinder body, other end fixedly connected with cylinder bottom, the inside being provided with of cylinder body be used for with the baffle of two complete working chambers is separated into to the cylinder body, the inside of cylinder body is provided with the piston rod that is used for driving the needle motion, the piston rod is located the cylinder body is close to a working chamber of cylinder head, another working chamber of cylinder body be equipped with piston rod fixed connection's lower piston, the outside of cylinder body is equipped with a plurality of blow vents, the inside of cylinder body be equipped with the communicating air channel of blow vent, be provided with the seal assembly who is used for sealed pressure boost cylinder in the cylinder body.
2. A supercharge cylinder for a needle valve type hot runner system according to claim 1, wherein a positioning adjustment means for positioning adjustment of the valve needle position is provided on the piston rod.
3. A supercharge cylinder for a needle valve hot runner system according to claim 2, wherein the positioning adjustment means comprises:
the positioning screw is arranged inside the piston rod and is in threaded connection with the piston rod;
and the limiting block is arranged at one end of the positioning screw, is connected with the valve needle and is used for limiting the current position of the valve needle in the cylinder body.
4. The supercharge cylinder for a needle valve type hot runner system according to claim 3, wherein a lower hole groove is formed in the limiting block, and a cup head which is abutted against the lower hole groove is formed at the upper part of the valve needle.
5. The supercharge cylinder for a needle valve hot runner system according to claim 1, wherein said seal assembly comprises:
the first sealing ring is arranged at the contact position of the piston rod and the cylinder body and used for preventing gas leakage;
and the second sealing ring is arranged at the contact position of the cylinder body, the lower piston and the bottom cover and used for preventing gas leakage.
6. The supercharge cylinder for a needle valve hot runner system according to claim 5, wherein said seal assembly further comprises:
a third seal ring provided in a contact seal between the cylinder head and the cylinder block, for preventing gas leakage;
and the fourth sealing ring is arranged on the cylinder body, and the contact sealing of the bottom cover and the template is used for preventing gas leakage.
7. The supercharge cylinder for a needle valve hot runner system according to claim 6, wherein the first seal ring, the second seal ring, the third seal ring and the fourth seal ring are all rubber seal rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521988.0U CN211031047U (en) | 2019-09-12 | 2019-09-12 | Pressurizing cylinder for needle valve type hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921521988.0U CN211031047U (en) | 2019-09-12 | 2019-09-12 | Pressurizing cylinder for needle valve type hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211031047U true CN211031047U (en) | 2020-07-17 |
Family
ID=71565963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921521988.0U Expired - Fee Related CN211031047U (en) | 2019-09-12 | 2019-09-12 | Pressurizing cylinder for needle valve type hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211031047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116771752A (en) * | 2022-12-02 | 2023-09-19 | 泰兴欧曼液压科技有限公司 | Telescopic cylinder not easy to be blocked |
-
2019
- 2019-09-12 CN CN201921521988.0U patent/CN211031047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116771752A (en) * | 2022-12-02 | 2023-09-19 | 泰兴欧曼液压科技有限公司 | Telescopic cylinder not easy to be blocked |
| CN116771752B (en) * | 2022-12-02 | 2024-01-09 | 泰兴欧曼液压科技有限公司 | Telescopic cylinder not easy to be blocked |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |