CN210026128U - Needle valve plate synchronous driving mechanism of needle valve type injection mold - Google Patents
Needle valve plate synchronous driving mechanism of needle valve type injection mold Download PDFInfo
- Publication number
- CN210026128U CN210026128U CN201920450727.8U CN201920450727U CN210026128U CN 210026128 U CN210026128 U CN 210026128U CN 201920450727 U CN201920450727 U CN 201920450727U CN 210026128 U CN210026128 U CN 210026128U
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- Prior art keywords
- needle valve
- plate
- runner
- valve plate
- compound
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 30
- 239000002699 waste material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XBWAZCLHZCFCGK-UHFFFAOYSA-N 7-chloro-1-methyl-5-phenyl-3,4-dihydro-2h-1,4-benzodiazepin-1-ium;chloride Chemical compound [Cl-].C12=CC(Cl)=CC=C2[NH+](C)CCN=C1C1=CC=CC=C1 XBWAZCLHZCFCGK-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A needle valve plate synchronous driving mechanism of a needle valve type injection mold comprises an upper compound plate and a lower compound plate, wherein a runner plate is arranged below the upper compound plate, a hot runner is arranged in the runner plate, a sprue is arranged below the hot runner, a fixed template is arranged below the runner plate, a fixed mold insert is arranged below the fixed template, a movable template is arranged on the lower compound plate, a movable mould insert is arranged on the movable template, a mould cavity is formed between the movable mould insert and the fixed mould insert, the lower end of the sprue corresponds to the mould cavity, an oil cylinder cavity is arranged in the upper compound plate, an upper baffle plate and a lower baffle plate are arranged in the oil cylinder cavity, a piston rod is arranged in the oil cylinder cavity between the upper baffle plate and the lower baffle plate, an upper mould pin is arranged between the upper compound plate and the runner plate, an upper needle valve plate and a lower needle valve plate are arranged between the upper mould pins, a piston rod passes through the lower baffle plate and is connected with the upper needle valve plate, two or more needle valves are arranged on the upper needle valve plate and the lower needle valve plate, and the needle valves penetrate through the hot runner and the sprue and are matched with the end part of the lower opening of the sprue.
Description
Technical Field
The utility model relates to an injection mold especially relates to needle valve formula injection mold's needle valve plate drive mechanism in step.
Background
The existing injection mold is generally provided with a pouring gate in an upper compound plate and a cavity liner plate, and glue melted in the pouring gate is conveyed into a cavity of the injection mold through a hot runner, so that the structure has the following defects: after the injection molding plastic part is cooled, the hot-melt glue material in the hot runner is also cooled to form waste materials, when the plastic part is ejected, the waste materials are ejected together, and then the waste materials are cut off manually by workers, so that the labor intensity of the workers is increased, the production efficiency is reduced, a large amount of waste materials are wasted, and if the waste materials are reused, the waste materials are crushed and granulated, the processing is troublesome, the processing steps are increased, and the production cost is increased. Therefore, the inventor invented a needle valve type injection mold, in the existing needle valve type injection mold, a needle valve is usually driven by a cylinder to extend into a gate, so as to block the lower mouth part of the gate, so that the plastic part in the mold cavity corresponding to the gate has no waste material, if a plurality of gates are required to be arranged in the injection mold, a corresponding number of cylinders and needle valves are required to be arranged, and the development cost of the mold is increased.
Disclosure of Invention
The utility model aims at overcoming the shortcoming that prior art exists, provide a simple structure, reduce mould development cost, reduce the mould volume, needle valve synchronization action, the needle valve formula injection mold's that the action uniformity is good needle valve formula drive mechanism in step.
The utility model discloses needle valve formula injection mold's needle valve plate drives technical scheme of mechanism in step is: the lower compound plate is provided with a fixed template, the fixed template is provided with a fixed die insert, the lower compound plate is provided with a movable template, the movable template is provided with a movable die insert, a die cavity is formed between the movable die insert and the fixed die insert, the lower end of the sprue corresponds to the die cavity, an oil cylinder cavity is formed in the upper compound plate, an upper baffle and a lower baffle are arranged in the oil cylinder cavity, a piston rod is arranged in the oil cylinder cavity between the upper baffle and the lower baffle, an upper die pin is arranged between the upper compound plate and the flow channel plate, an upper pin valve plate and a lower pin valve plate are arranged between the upper pin valve plate and the lower pin valve plate, the piston rod penetrates through the lower baffle to be connected with the upper pin valve plate, two or more needle valves are arranged on the upper pin valve plate and the lower pin valve plate, and the needle valves penetrate through the hot runner and the sprue to be matched with the end part of a lower opening of the sprue.
The utility model discloses a needle valve formula injection mold's needle valve plate drives mechanism in step, after the die cavity among injection mold is filled with the sizing material, drive the piston rod downstream in the hydro-cylinder chamber through the oil pressure, the piston rod drives upper and lower needle valve plate downstream, upper and lower needle valve plate drives the synchronous downstream of two or more needle valves, make each needle valve stop up the lower oral area of runner downwards, treat the sizing material cooling design back in the die cavity, the mould die sinking, injection moulding's working of plastics is deviate from the die cavity. According to the needle valve plate synchronous driving mechanism of the needle valve type injection mold, the first step is that the oil cylinder cavity is formed in the upper compound plate, and the piston rod of the oil cylinder is directly arranged in the upper compound plate, so that the space required for arranging the oil cylinder is saved, the size of the mold is reduced, the tonnage of the mold is reduced, and the development cost of the mold is reduced; and secondly, the upper needle valve plate and the lower needle valve plate are driven to work through the oil cylinder, and then the upper needle valve plate and the lower needle valve plate drive the plurality of needle valves to synchronously act, so that the action consistency of the plurality of needle valves is good, one air cylinder is not needed to drive one needle valve, and the development cost of the die is saved.
The utility model discloses needle valve formula injection mold's needle valve plate drives mechanism in step, last compound board and runner plate between set up the guide pillar, set up the guide pin bushing in last needle valve plate and lower needle valve plate, the guide pin bushing cooperatees with the guide pillar. The guide post and the guide sleeve play a role in guiding the up-and-down motion of the upper needle valve plate and the lower needle valve plate, so that the motion is stable and reliable.
Drawings
FIG. 1 is a schematic top view of a needle valve plate timing mechanism of a needle valve injection mold;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic sectional view taken along line B-B of fig. 1.
Detailed Description
The utility model relates to a needle valve plate synchronous driving mechanism of a needle valve type injection mold, as shown in figures 1-3, comprising an upper compound plate 1 and a lower compound plate 2, a runner plate 3 is arranged under the upper compound plate, a hot runner 4 is arranged in the runner plate, a sprue 5 is arranged under the hot runner, a fixed template 6 is arranged under the runner plate, a fixed template insert 7 is arranged under the fixed template, a movable template 8 is arranged on the lower compound plate 2, a movable template insert 9 is arranged on the movable template, a mold cavity 10 is formed between the movable template insert and the fixed template insert, the lower end of the sprue corresponds to the mold cavity, an oil cylinder cavity 11 is arranged in the upper compound plate 1, an upper baffle 12 and a lower baffle 13 are arranged in the oil cylinder cavity, a piston rod 14 is arranged in the oil cylinder cavity between the upper baffle and the lower baffle, an upper mold foot 15 is arranged between the upper compound plate 1 and the runner plate 3, an upper needle valve plate 16 and a lower needle valve plate 17 are arranged between the upper mold foot, the piston rod 14 passes through the lower baffle, two or more needle valves 18 are arranged on the upper needle valve plate and the lower needle valve plate, and the needle valves penetrate through the hot runner 4 and the sprue 5 and are matched with the lower opening end part of the sprue. After the mold cavity 10 in the injection mold is filled with the sizing material, the piston rod 14 in the cylinder cavity 11 is driven to move downwards by oil pressure, the piston rod drives the upper needle valve plate 16 and the lower needle valve plate 17 to move downwards, the upper needle valve plate and the lower needle valve plate drive two or more needle valves 18 to synchronously move downwards, each needle valve downwards plugs the lower opening part of the sprue 5, after the sizing material in the mold cavity 10 is cooled and shaped, the mold is opened, and the injection molded plastic part is separated from the mold cavity. According to the needle valve plate synchronous driving mechanism of the needle valve type injection mold, the first step is that the oil cylinder cavity 10 is formed in the upper compound plate, and the piston rod 14 of the oil cylinder is directly arranged in the upper compound plate 1, so that the space required for arranging the oil cylinder is saved, the size of the mold is reduced, the tonnage of the mold is reduced, and the development cost of the mold is reduced; and secondly, the upper needle valve plate 16 and the lower needle valve plate 17 are driven to work through the oil cylinder, and then the upper needle valve plate and the lower needle valve plate drive a plurality of needle valves 18 to synchronously act, so that the action consistency of the needle valves is good, one needle valve is not required to be driven by one air cylinder, and the development cost of the die is saved. A guide post 19 is arranged between the upper compound plate 1 and the runner plate 3, and a guide sleeve 20 is arranged in the upper needle valve plate 16 and the lower needle valve plate 17 and is matched with the guide post. The guide post 19 and the guide sleeve 20 are arranged to guide the up-and-down movement of the upper needle valve plate 16 and the lower needle valve plate 17, so that the movement is stable and reliable.
Claims (2)
1. Needle valve formula injection mold's needle valve board synchronous drive mechanism, including compound board (1) and lower compound board (2), set up runner plate (3) under going up the compound board, set up hot runner (4) in the runner plate, set up runner (5) under the hot runner, set up fixed die plate (6) under the runner plate, set up cover half insert (7) under the fixed die plate, set up movable mould board (8) under on compound board (2), set up movable mould insert (9) on the movable mould board, the movable mould inserts and forms die cavity (10) between the cover half insert, the lower extreme of runner is corresponding with the die cavity, its characterized in that: go up compound board (1) in seted up hydro-cylinder chamber (11), set up overhead gage (12) and lower baffle (13) in the hydro-cylinder chamber, set up piston rod (14) in the hydro-cylinder chamber between the upper and lower baffle, set up mould foot (15) between upper compound board (1) and runner plate (3), set up between the mould foot and go up needle valve plate (16) and lower needle valve plate (17), piston rod (14) pass down baffle (13) and are connected with overhead needle valve plate (16), set up two or more needle valves (18) on the upper and lower needle valve plate, the needle valve passes hot runner (4) and runner (5), cooperate with the end of the end opening of runner.
2. The needle valve type injection mold needle valve plate synchronous driving mechanism according to claim 1, wherein: a guide post (19) is arranged between the upper compound plate (1) and the runner plate (3), and a guide sleeve (20) is arranged in the upper needle valve plate (16) and the lower needle valve plate (17) and matched with the guide post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920450727.8U CN210026128U (en) | 2019-04-04 | 2019-04-04 | Needle valve plate synchronous driving mechanism of needle valve type injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920450727.8U CN210026128U (en) | 2019-04-04 | 2019-04-04 | Needle valve plate synchronous driving mechanism of needle valve type injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210026128U true CN210026128U (en) | 2020-02-07 |
Family
ID=69357870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920450727.8U Expired - Fee Related CN210026128U (en) | 2019-04-04 | 2019-04-04 | Needle valve plate synchronous driving mechanism of needle valve type injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210026128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619034A (en) * | 2021-09-03 | 2021-11-09 | 浙江创元模具科技有限公司 | Upward side sliding block limiting mechanism of plastic pipe fitting injection mold |
-
2019
- 2019-04-04 CN CN201920450727.8U patent/CN210026128U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619034A (en) * | 2021-09-03 | 2021-11-09 | 浙江创元模具科技有限公司 | Upward side sliding block limiting mechanism of plastic pipe fitting injection mold |
| CN113619034B (en) * | 2021-09-03 | 2023-05-23 | 浙江创元模具科技有限公司 | Limiting mechanism for upward sliding block of plastic pipe fitting injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200207 |