CN208452206U - Ejection resetting-mechanism for turn signal lampshade injection mold - Google Patents
Ejection resetting-mechanism for turn signal lampshade injection mold Download PDFInfo
- Publication number
- CN208452206U CN208452206U CN201820926022.4U CN201820926022U CN208452206U CN 208452206 U CN208452206 U CN 208452206U CN 201820926022 U CN201820926022 U CN 201820926022U CN 208452206 U CN208452206 U CN 208452206U
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- knock
- piston
- pin
- cylinder
- turn signal
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
This patent discloses a kind of ejection resetting-mechanisms for turn signal lampshade injection mold, including several knock-pins, cylinder, fixed block and cooling mechanism, several knock-pins pass through fixed block and are slidably connected with fixed block, cooling mechanism includes the rack gear being fixed on knock-pin, it is engaged with rack and is rotatably connected on the gear on fixed block, connecting rod, first cylinder body and first piston, connecting rod one end is hinged on the eccentric position of gear, the other end of connecting rod is hinged on first piston, air inlet and air outlet are offered on first cylinder body, air inlet and air outlet are equipped with check valve, several knock-pins are hollow structure, the internal cavities of knock-pin are connected to gas outlet, knock-pin top is equipped with several blowholes.This programme solves the problems, such as to cause to be easily deformed since temperature is higher when turn signal lampshade is ejected or damage.
Description
Technical field
It is specifically a kind of for turn signal lampshade injection mold the utility model relates to injection mold technology
Eject resetting-mechanism.
Background technique
Injection mold is a kind of tool for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Tool.The injection mold of production turn signal lampshade generally comprises die ontology and is used for finished automotive turn signal at present
Lampshade ejection ejection resetting-mechanism, ejection resetting-mechanism include several knock-pins, driving knock-pin move up and down cylinder with
And it is fixed on the supporting block at the top of knock-pin, die ontology is equipped with the through-hole for passing through and sliding for knock-pin.Work as injection moulding process
After the completion, turn signal lampshade is ejected and is removed by manually or mechanically hand by ejection resetting-mechanism.
Injection molding is cooled and shaped in the melt liquid injection mold by high temperature, in ejection, if turn signal lampshade is simultaneously
It is completely cooling, since plasthetics temperature more high rigidity is lower, turn signal lampshade temperature is excessively high will be easy to be damaged or
Person's deformation, influences final product quality.
Utility model content
The utility model is intended to provide a kind of ejection resetting-mechanism for turn signal lampshade injection mold, to solve
Lead to the problem of being easily deformed or damaging when turn signal lampshade is ejected since temperature is higher.
In order to achieve the above object, the base case of the utility model is as follows:
For the ejection resetting-mechanism of turn signal lampshade injection mold, including several knock-pins and cylinder, further include
Fixed block and cooling mechanism, the fixed block are fixed on cylinder, and several knock-pins pass through fixed block and slide with fixed block
Dynamic connection, the cooling mechanism include the rack gear being fixed on knock-pin, are engaged with rack and are rotatably connected on fixed block
Gear, connecting rod, the first cylinder body and first piston, the first piston are slidably connected in the first cylinder body, the connecting rod one
End is hinged on the eccentric position of gear, and the other end of the connecting rod is hinged on first piston, opens up on first cylinder body
There are air inlet and air outlet, the air inlet and air outlet are equipped with check valve, and several knock-pins are hollow structure, described
The internal cavities of knock-pin are connected to gas outlet, and the knock-pin top is equipped with several blowholes.
The principle of base case: when melt liquid pours into cooling a period of time turn signal lampshade (following letter in mold
Claim lampshade) molding after, start cylinder, cylinder drive knock-pin move up, the rack gear being fixed on knock-pin follows knock-pin to move up,
The gear rotation being engaged with rack, during gear rotates, since connecting rod is hinged on the center of gear, thus with connection
The hinged first piston of bar will slide in the first cylinder body under the action of gear and connecting rod, the process of first piston sliding
In, extraneous air will be entered in the first cylinder body by air inlet, and the internal cavities of knock-pin are entered by gas outlet
In, it finally blows on molding lampshade from gas blow pipe, is cooled down using heat exchange to lampshade.
The advantages of base case: (1) cooling down to lampshade in ejection process, avoids since the temperature of lampshade is higher
The problem of causing hardness lower, being easily damaged or deform in ejection process, ensure that the quality of lampshade finished product.
(2) moving up and down using knock-pin, and the realization such as rack gear, gear, the first cylinder body is combined to blow lampshade,
The cooling to lampshade is realized using the heat exchange between gas and lampshade, and high degree of automation does not need additional power source yet.
It further, further include control mechanism, the control mechanism includes the second cylinder body being located in die ontology, the second work
The piston rod and limit switch fill in, being fixed in second piston, the limit switch are fixed on fixed block, the second piston
It is slidably connected in the second cylinder body, the second cylinder body is divided into the first cavity and the second cavity by the second piston, and described second is empty
Chamber is communicated with the atmosphere, and the piston rod is located in the second cavity and can offset with limit switch, the limit switch and cylinder
Electrical connection, the piston rod can control the working condition of limit switch.
At normal temperature, the pressure of second piston two sides is equal to atmospheric pressure.Limit switch is connected with cylinder, piston rod with
When limit switch offsets, limit switch is closed, and cylinder cannot start, when piston rod does not offset with limit switch, limit switch
It opens, cylinder can start.When the temperature in die ontology increases, the air heats in first chamber expand so that pressure liter
Height, the pressure in first chamber will push second piston and piston rod to move to the direction of second chamber after increasing, piston rod
It will offset with limit switch, cylinder can not start at this time, i.e., lampshade cannot be ejected.When the temperature of die ontology and lampshade
When gradually decreasing, the pressure in first chamber is gradually reduced, and second piston and piston rod are gradually withdrawn, when piston rod not with limitation
To offset be that cylinder can be activated to switch, and lampshade can be just ejected at this time, avoid when lampshade temperature is very high, also not completely at
Cylinder starting ejects lampshade when type.
Further, the gas outlet is communicated with air bag, and the air bag is communicated with escape pipe, the escape pipe and knock-pin
Connects with the internal cavities, the escape pipe are equipped with control valve.
Preparation will be moved down after knock-pin ejects lampshade next time to eject lampshade, this hour rack follows under knock-pin
It moves, band moving gear rotates rack gear again, and under the action of gear, connecting rod and the first cylinder, still there is more gas in gas outlet
Body passes through, but needs to cool down without lampshade at the top of knock-pin at this time.Control valve is closed, when knock-pin moves down, gas outlet discharge
Gas enter in air bag and be collected, when knock-pin moves up, needs to cool down to lampshade, open control valve, air bag
In gas from escape pipe be discharged, finally blow on lampshade via the internal cavities of knock-pin, blowhole and cool down to lampshade.
Further, several knock-pins include vertical bar and supporting block, and the supporting block is fixed at the top of vertical bar, the branch
The cross-sectional area of bracer is greater than the cross-sectional area of vertical bar, and the blowhole is located in supporting block.The cross-sectional area of supporting block is larger,
It is more preferable to lampshade support effect, and the area of lampshade that the wind energy of blowhole blowout is blown to is also bigger, cooling effect is more preferable.
Further, the supporting block is made of high temperature resistant silica gel.The material is soft for high temperature resistant silica gel, in support lampshade and incites somebody to action
Buffering effect when lampshade ejects between lampshade is more preferable, and lampshade is hardly damaged.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of A in Fig. 1；
Fig. 3 is the structural schematic diagram of the control mechanism in the utility model embodiment.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: knock-pin 1, fixed block 2, rack gear 3, gear 4, connecting rod 5, the first cylinder
Body 6, first piston 7, air inlet 8, gas outlet 9, air bag 10, escape pipe 11, control valve 12, blowhole 13, the second cylinder body 14,
Two pistons 15, piston rod 16, limit switch 17, first chamber 18, second chamber 19, lampshade 20, die ontology 21.
Embodiment
Substantially it is used for the ejection resetting-mechanism of turn signal lampshade injection mold, including 16 knock-pins as shown in Figure 1:
1, cylinder, fixed block 2, cooling mechanism and control mechanism, fixed block 2 are fixed in cylinder (not shown).Turn signal
20 injection mold of lampshade can be molded production two lampshades, 20,16 knock-pins 1 simultaneously and pass through fixed block 2 and slide with fixed block 2
Dynamic connection, 16 knock-pins 1 divide for tetrad, and the top of four groups of knock-pins 1 is located at the two sides of two lampshades 20.Top
Rod 1 includes vertical bar and supporting block, and supporting block is made of high temperature resistant silica gel, and supporting block is bonded at the top of vertical bar, the cross of supporting block
Sectional area is greater than the cross-sectional area of vertical bar.
As shown in connection with fig. 2, cooling mechanism includes the rack gear 3 being welded on knock-pin 1, with rack gear 3 engages and be rotatablely connected
Gear 4, connecting rod 5, the first cylinder body 6 and first piston 7, first piston 7 on fixed block 2 are slidably connected at the first cylinder body 6
Interior, 5 one end of connecting rod is hinged on the eccentric position of gear 4, and the other end of connecting rod 5 is hinged on first piston 7, the first cylinder body
Air inlet 8 and gas outlet 9 are offered on 6, air inlet 8 and gas outlet 9 are equipped with check valve, and gas outlet 9 is communicated with air bag 10, gas
Capsule 10 is communicated with escape pipe 11, and escape pipe 11 is bellows, and escape pipe 11 is equipped with control valve 12；Knock-pin 1 is hollow structure,
The connects with the internal cavities of escape pipe 11 and knock-pin 1, set that there are three blowholes 13 in each supporting block.
As shown in connection with fig. 3, control mechanism includes the second cylinder body 14 being located in die ontology 21, second piston 15, fixes
Piston rod 16 and limit switch 17 in second piston 15, limit switch 17 are bolted on fixed block 2；Mold sheet
Open up fluted in body 21, the second cylinder body 14 is bolted in groove；Second piston 15 is slidably connected at the second cylinder body
In 14, second piston 15 divides the second cylinder body 14 for the first cavity and the second cavity, and the second cavity is equipped with and opening is communicated with the atmosphere,
Piston rod 16 is located in the second cavity and can offset with limit switch 17.At normal temperature, the pressure of 15 two sides of second piston is equal
Equal to atmospheric pressure.Limit switch 17 is connected with cylinder, and when piston rod 16 and limit switch 17 offset, limit switch 17 is closed,
Cylinder cannot start, and when piston rod 16 does not offset with limit switch 17, limit switch 17 is opened, and cylinder can start.
Specific implementation process is as follows: when melt liquid pours into mold, the temperature in die ontology 21 increases, the first chamber
Air heats in room 18 expand so that pressure increases, the pressure in first chamber 18 will be pushed after increasing second piston 15 and
Piston rod 16 is moved to the direction of second chamber 19, and piston rod 16 will offset with limit switch 17, and cylinder can not start at this time,
I.e. lampshade 20 cannot be ejected.Pressure when the temperature of die ontology 21 and lampshade 20 gradually decreases, in first chamber 18
It is gradually reduced, second piston 15 and piston rod 16 are gradually withdrawn, when temperature is reduced to the temperature of plastic shaping (as used poly- carbon
Acid esters make lampshade 20 when, when temperature be lower than 50 DEG C when lampshade 20 completely form), piston rod 16 no longer with 17 phase of limit switch
Support, cylinder can be activated, and lampshade 20 can be just ejected at this time, avoid when 20 temperature of lampshade is very high, also completely molding when
Cylinder starting ejects lampshade 20.
When melt liquid pours into a period of time turn signal lampshade 20 (hereinafter referred to as lampshade 20) cooling in mold molding
Afterwards, start cylinder, cylinder drives knock-pin 1 to move up, and the rack gear 3 being fixed on knock-pin 1 follows knock-pin 1 to move up, with rack gear 3
Meshed gears 4 rotates, during gear 4 rotates, since connecting rod 5 is hinged on the center of gear 4, therefore and connecting rod
5 hinged first pistons 7 will slide in the first cylinder body 6 under the action of gear 4 and connecting rod 5, the mistake that first piston 7 slides
Cheng Zhong, extraneous air will be entered in the first cylinder body 6 by air inlet 8, and pass through gas outlet 9, air bag 10 and escape pipe
11 enter in the internal cavities of knock-pin 1 (control valve 12 is in an open state at this time), finally blow to molding lamp from gas blow pipe
On cover 20, cooled down using heat exchange to lampshade 20.
Preparation will be moved down after knock-pin 1 ejects lampshade 20 next time to eject lampshade 20, this hour rack 3 follows ejection
Bar 1 moves down, and band moving gear 4 rotates rack gear 3 again, and under the action of gear 4, connecting rod 5 and the first cylinder, gas outlet 9 is still
There is more gas to pass through, but needs to cool down without lampshade 20 at the top of knock-pin 1 at this time.Control valve 12 is closed, when under knock-pin 1
When shifting, the gas that gas outlet 9 is discharged is entered in air bag 10 and is collected, when knock-pin 1 moves up, needs to drop lampshade 20
Wen Shi opens control valve 12, and the gas in air bag 10 is discharged from escape pipe 11, finally via the internal cavities of knock-pin 1, blowing
Hole 13, which is blown on lampshade 20, cools down to lampshade 20.
Above-described is only the embodiments of the present invention, the common sense such as well known specific structure and/or characteristic in scheme
It does not describe excessively herein.It should be pointed out that for those skilled in the art, before not departing from the utility model structure
It puts, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not shadow
Ring effect and patent practicability that the utility model is implemented.This application claims protection scope should be in its claim
Subject to appearance, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (5)
1. being used for the ejection resetting-mechanism of turn signal lampshade injection mold, including several knock-pins and cylinder, feature exist
In: further include fixed block and cooling mechanism, the fixed block is fixed on cylinder, several knock-pins pass through fixed block and with
Fixed block is slidably connected, and the cooling mechanism includes the rack gear being fixed on knock-pin, is engaged with rack and is rotatably connected on solid
Determine gear, connecting rod, the first cylinder body and the first piston on block, the first piston is slidably connected in the first cylinder body, described
Connecting rod one end is hinged on the eccentric position of gear, and the other end of the connecting rod is hinged on first piston, first cylinder
Air inlet and air outlet are offered on body, the air inlet and air outlet are equipped with check valve, and several knock-pins are hollow
The internal cavities of structure, the knock-pin are connected to gas outlet, and the knock-pin top is equipped with several blowholes.
2. the ejection resetting-mechanism according to claim 1 for turn signal lampshade injection mold, it is characterised in that:
It further include control mechanism, the control mechanism includes the second cylinder body being located in die ontology, second piston, is fixed on the second work
Piston rod and limit switch beyond the Great Wall, the limit switch are fixed on fixed block, and the second piston is slidably connected at second
In cylinder body, the second cylinder body is divided into the first cavity and the second cavity by the second piston, and second cavity is communicated with the atmosphere, institute
It states piston rod to be located in the second cavity and can offset with limit switch, the limit switch is electrically connected with cylinder, the piston
Bar can control the working condition of limit switch.
3. the ejection resetting-mechanism according to claim 2 for turn signal lampshade injection mold, it is characterised in that:
The gas outlet is communicated with air bag, and the air bag is communicated with escape pipe, the connects with the internal cavities of the escape pipe and knock-pin, institute
Escape pipe is stated equipped with control valve.
4. the ejection resetting-mechanism according to claim 3 for turn signal lampshade injection mold, it is characterised in that:
Several knock-pins include vertical bar and supporting block, and the supporting block is fixed at the top of vertical bar, the cross-sectional area of the supporting block
Greater than the cross-sectional area of vertical bar, the blowhole is located in supporting block.
5. the ejection resetting-mechanism according to claim 4 for turn signal lampshade injection mold, it is characterised in that:
The supporting block is made of high temperature resistant silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926022.4U CN208452206U (en) | 2018-06-14 | 2018-06-14 | Ejection resetting-mechanism for turn signal lampshade injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926022.4U CN208452206U (en) | 2018-06-14 | 2018-06-14 | Ejection resetting-mechanism for turn signal lampshade injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN208452206U true CN208452206U (en) | 2019-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820926022.4U Expired - Fee Related CN208452206U (en) | 2018-06-14 | 2018-06-14 | Ejection resetting-mechanism for turn signal lampshade injection mold |
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| CN (1) | CN208452206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940837A (en) * | 2019-04-15 | 2019-06-28 | 泉州市泉港区新联鑫通工业设计有限公司 | A kind of liftout attachment of plastic mould |
-
2018
- 2018-06-14 CN CN201820926022.4U patent/CN208452206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940837A (en) * | 2019-04-15 | 2019-06-28 | 泉州市泉港区新联鑫通工业设计有限公司 | A kind of liftout attachment of plastic mould |
| CN109940837B (en) * | 2019-04-15 | 2021-03-02 | 深圳市益华诚模具有限公司 | Ejection device of plastic mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190201 |