CN204136322U - Nozzle on the ejection formation machine of thermoplastic - Google Patents
Nozzle on the ejection formation machine of thermoplastic Download PDFInfo
- Publication number
- CN204136322U CN204136322U CN201420549516.7U CN201420549516U CN204136322U CN 204136322 U CN204136322 U CN 204136322U CN 201420549516 U CN201420549516 U CN 201420549516U CN 204136322 U CN204136322 U CN 204136322U
- Authority
- CN
- China
- Prior art keywords
- valve
- needle
- nozzle
- latch assembly
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 10
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 10
- 238000010079 rubber tapping Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 description 11
- 229920003023 plastic Polymers 0.000 description 11
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Nozzle on the ejection formation machine of thermoplastic, comprises nozzle body, nozzle head, needle-valve, axle sleeve, latch assembly.Nozzle head is fixed on nozzle body, in space between nozzle body and nozzle head, needle-valve is set, needle-valve front end can the tapping channel of valve nozzles head, needle-valve rear portion is slidably connected on nozzle body, latch assembly is fixed on the exterior lateral sides of nozzle body, and the locking member of latch assembly is close to needle-valve rear end; During normal condition, latch assembly props up needle-valve rear end and makes the tapping channel of needle-valve valve nozzles head; During feed state, the material compressing needle-valve in nozzle body retreats and makes needle-valve front end leave the tapping channel of nozzle head.Because latch assembly is positioned at the outside of nozzle, nozzle can quick-replaceable consumable accessory, thus effectively the continuous working period obviously elongated, namely the life-span is elongated, and the maintenance frequency reduces greatly.
Description
Technical field
The utility model relates to the nozzle assembly on the injection machine of processing thermoplastic plastics.
Background technology
Plastic injection and packing stage afterwards, molding machine plasticizing assembly compresses injection mold by nozzle.When the moulding material lower to some stickiness carries out injection moulding, usually can a closure works system be set on nozzle.When nozzle is separated with mould, prevent molten plastic excessive from nozzle oral area, to keep expecting plastifying state stable in pipe.
This type of nozzle, already for known by the industry, such as existingly in Switzerland's No. 587719 patent specification to describe.In enclosed cavity indoor of this type of nozzle interior, be provided with special spring mechanism for driving above-mentioned closure works system.When molten plastic is filled with in closed chamber, the spring in cavity can by stagflation inside, quit work to make closure works system.Ressembling and before using nozzle, nozzle must pulled down from machine, and must split nozzle and thoroughly cleaning, long-time shutdown can be caused like this, and cost of labor be higher.
Utility model content
Technical problem to be solved in the utility model is intended to address the aforementioned drawbacks, a kind of nozzle on the ejection formation machine of thermoplastic is provided, spring for shut-off nozzles is arranged in a latch assembly, this latch assembly is positioned at the exterior lateral sides of nozzle, and latch assembly can carry out integral replacing quickly and easily.
The utility model solves the problems of the technologies described above adopted technical scheme:
Nozzle on the ejection formation machine of thermoplastic, comprise nozzle body, nozzle head, needle-valve, needle-valve axle sleeve, latch assembly, nozzle head is fixed on nozzle body, in space between nozzle body and nozzle head, needle-valve is set, needle-valve front end can the tapping channel of valve nozzles head, needle-valve rear portion is slidably connected on nozzle body, and latch assembly is fixed on nozzle body, and the locking member of latch assembly is close to needle-valve rear end; During normal condition, latch assembly props up needle-valve rear end and makes the tapping channel of needle-valve valve nozzles head; During feed state, the material compressing needle-valve in nozzle body retreats and makes needle-valve front end leave the tapping channel of nozzle head.
Better, the locking member of latch assembly is arranged in the cavity communicated with the external world of nozzle body needle-valve axle sleeve rear end, and cavity is that the molten plastic oozed out provides enough outer emptying.
Described latch assembly comprises support, lever, torsion spring, supporting pin, supporting pin two ends are connected on support, lever is connected on supporting pin, torsion spring set is on supporting pin, one end-rack is on support, and spring force, on lever, is applied on lever by another end-rack, lever is the locking member of latch assembly, by the tapping channel of lever pushing needle-valve front end valve nozzles head.
Better, needle-valve rear portion is slidably connected in the needle-valve axle sleeve on nozzle body, and such needle-valve and needle-valve axle sleeve can seal better.
Compared with prior art, the utility model has the advantage of:
Retaining mechanism in nozzle is arranged on the outside of nozzle body, can quick-replaceable consumable accessory, and therefore the downtime of machine can drop to minimum, and the maintenance of whole machine also can become extremely simple.
The cavity communicated with the external world is set in nozzle body, the locking member of latch assembly arranges and connects needle-valve in the cavities, the injection molding material leaked out can be helped like this to export to nozzle exterior, and the function of the spring in latch assembly can not be affected in whole discharging process, therefore, nozzle effective continuous working period is obviously elongated, and namely the life-span is elongated, and the maintenance frequency reduces greatly.
Accompanying drawing explanation
Fig. 1 is the longitudinal section under the utility model embodiment nozzle closed condition.
Fig. 2 is the longitudinal section under the utility model embodiment nozzle open state.
Fig. 3 is the latch assembly figure of the utility model embodiment as quick part exchanging system.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is further described.
As shown in Figure 1, nozzle is arranged on the injection machine for processing thermoplastic plastics, particular location between plasticizing system and injection mold, the front end (not marking in the drawings) of plastifying organization.In example in the drawings, be connected with plastifying organization by screw thread 1a.At injection stage and packing stage after this, plasticizing system presses injection mold by nozzle.In the preparatory stage, plasticizing system makes plastic grain be in molten condition, and is sprayed in mould by nozzle by the plastics of melting with high pressure.
Together with nozzle body 1 shown in Fig. 1 is tightened on a nozzle head 2, jet hole 2a is positioned at before nozzle head 2, and in the state shown in Fig. 1, jet hole 2a is in closed condition by needle-valve 3.In nozzle body 1, be provided with an axle sleeve 4, by axle sleeve 4, the sliding surface 4b of needle-valve 3 and axle sleeve 4 realizes coordinating.Needle-valve 3 is pressed onto on nozzle head 2 by the lever 55 of latch assembly by being produced external force by the spring 56 of pretension, thus final plant closure jet hole 2a.The concrete structure of the latch assembly of the present embodiment is shown in Fig. 3.
In order to the plastics of melting are sprayed into mould, plasticizing system can strengthen its pressure to plastics, and meanwhile, the pressure in nozzle also can increase.By the tapered plane 3a of needle-valve 3 moved vertically, the pressure of above-mentioned increase will be applied on lever 55, and meanwhile lever 55 is subject to the thrust of spring.
When above-mentioned pressure is increased to enough large, acts on opposite force lever 55 being resisted spring 56 and also will increase, needle-valve 3 moves to axle sleeve 4 direction and leaves jet hole 2a.Under the guide effect of axle sleeve 4, needle-valve 3 moves backward, until touch the front end face 4a place of axle sleeve 4, nozzle is thoroughly opened, thus makes whole nozzle enter state shown in Fig. 2.Contrary with above-mentioned whole process, when acting on the pressure on molten plastic and reducing gradually, whole nozzle system, then under the effect of latch assembly, can be closed by needle-valve 3.
Between needle-valve 3 and axle sleeve 4, need to design small gap (the sliding surface 4b namely shown in Fig. 1), make to realize between needle-valve 3 and axle sleeve 4 being slidably matched.In needle-valve 3 reciprocatory movement, molten plastic is clamp-oned in above-mentioned gap, and gently permeates towards the gap 1b of low-pressure.In needle-valve 3, also be provided with a support shoulders 3b, when whole nozzle system is in the open mode shown in Fig. 2, support shoulders 3b can abut against on the front end face 4a of needle-valve axle sleeve, meanwhile, sliding surface 4b can be closed jointly by needle-valve 3 and axle sleeve 4, even if make molten plastic under high pressure also cannot infiltrate 4b again.
According to the present embodiment, latch assembly 5 for shut-off nozzle comprises: a support 53, spring rotary shaft pin 54, lever 55, torsion spring 56, torsion spring 56 is enclosed within spring rotary shaft pin 54, latch assembly 5 is fixed in the exterior lateral sides of nozzle body 1 itself by support both sides by support bracket bolt 58, its lever 55 enters the outwardly open without in pressure cavities 1b of nozzle body, and lever 55 head props up needle-valve 3 and makes needle-valve 3 sealed-in nozzles mouth 2a under the elastic force effect of torsion spring 56.
Above-mentioned support 53 also arranges spacing hole 59, mounting limit bolt 57 in spacing hole 59, and caging bolt 57 head aims at the limited step 58 that lever 55 is arranged, and caging bolt 57 makes the head of lever 55 opposite side leave needle-valve 3 afterbody by limited step 58.
When needs carry out mainteinance repair to latch assembly 5, when that is dismantling latch assembly 5 from nozzle body, must according to as described below, point three steps are carried out:
1. screw in caging bolt 57 clockwise, until it touches block, lever 55 is separated with needle-valve 3, and fastening system enters the state removing locking.
2. turn on 2 support bracket bolts 58 of nozzle body side.
3. latch assembly 5 is disassembled from nozzle body 1.
Latch assembly 5 after completing maintenance, according to the order contrary with above-mentioned flow process, reinstalls on nozzle body.
Claims (5)
1. the nozzle on the ejection formation machine of thermoplastic, it is characterized in that: comprise nozzle body, nozzle head, needle-valve, axle sleeve, latch assembly, nozzle head is fixed on nozzle body, in space between nozzle body and nozzle head, needle-valve is set, needle-valve front end can the tapping channel of valve nozzles head, needle-valve rear portion is slidably connected on nozzle body, and latch assembly is fixed on nozzle body, and the locking member of latch assembly is close to needle-valve rear end; During normal condition, latch assembly props up needle-valve rear end thus makes the tapping channel of needle-valve valve nozzles head; During feed state, the material compressing needle-valve in nozzle body retreats thus makes needle-valve front end leave the tapping channel of nozzle head.
2. the nozzle on the ejection formation machine of thermoplastic as claimed in claim 1, is characterized in that: the locking member of described latch assembly is arranged in the cavity communicated with the external world of nozzle body needle-valve axle sleeve rear end.
3. the nozzle on the ejection formation machine of thermoplastic as claimed in claim 1 or 2, it is characterized in that: described latch assembly comprises support, lever, torsion spring, supporting pin, supporting pin two ends end is connected on support, lever is connected on supporting pin, and torsion spring set is on supporting pin, and an end-rack is on support, another end-rack is at lever, be applied to by spring force on lever, lever is the locking member of latch assembly, by the tapping channel of lever pushing needle-valve front end valve nozzles head.
4. the nozzle on the ejection formation machine of thermoplastic as claimed in claim 1 or 2, is characterized in that: needle-valve rear portion is slidably connected in the needle-valve axle sleeve on nozzle body.
5. the nozzle on the ejection formation machine of thermoplastic as claimed in claim 1 or 2, it is characterized in that: support also arranges spacing hole, mounting limit bolt in spacing hole, aim at the limited step that the position of lever is arranged at caging bolt head, caging bolt makes the head of lever opposite side leave needle-valve afterbody by limited step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549516.7U CN204136322U (en) | 2014-09-24 | 2014-09-24 | Nozzle on the ejection formation machine of thermoplastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549516.7U CN204136322U (en) | 2014-09-24 | 2014-09-24 | Nozzle on the ejection formation machine of thermoplastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204136322U true CN204136322U (en) | 2015-02-04 |
Family
ID=52413036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420549516.7U Expired - Lifetime CN204136322U (en) | 2014-09-24 | 2014-09-24 | Nozzle on the ejection formation machine of thermoplastic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204136322U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336406A (en) * | 2017-08-01 | 2017-11-10 | 宁波斯达弗液压传动有限公司 | A kind of radial direction cut-off equipment for injection molding machine nozzle |
| CN107364071A (en) * | 2017-08-01 | 2017-11-21 | 宁波斯达弗液压传动有限公司 | A kind of shut-off nozzles of injection machine |
| CN109382972A (en) * | 2018-12-03 | 2019-02-26 | 和卓喷嘴阀门系统（宁波）有限公司 | A kind of forming method of shut-off nozzles and the shut-off nozzles |
| CN109822821A (en) * | 2019-04-02 | 2019-05-31 | 和卓喷嘴阀门系统（宁波）有限公司 | A kind of multipurpose shut-off nozzles |
| CN116834217A (en) * | 2023-07-31 | 2023-10-03 | 滁州市精美家电设备股份有限公司 | Passive interlocking type nozzle and foaming equipment |
-
2014
- 2014-09-24 CN CN201420549516.7U patent/CN204136322U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336406A (en) * | 2017-08-01 | 2017-11-10 | 宁波斯达弗液压传动有限公司 | A kind of radial direction cut-off equipment for injection molding machine nozzle |
| CN107364071A (en) * | 2017-08-01 | 2017-11-21 | 宁波斯达弗液压传动有限公司 | A kind of shut-off nozzles of injection machine |
| CN109382972A (en) * | 2018-12-03 | 2019-02-26 | 和卓喷嘴阀门系统（宁波）有限公司 | A kind of forming method of shut-off nozzles and the shut-off nozzles |
| CN109822821A (en) * | 2019-04-02 | 2019-05-31 | 和卓喷嘴阀门系统（宁波）有限公司 | A kind of multipurpose shut-off nozzles |
| CN116834217A (en) * | 2023-07-31 | 2023-10-03 | 滁州市精美家电设备股份有限公司 | Passive interlocking type nozzle and foaming equipment |
| CN116834217B (en) * | 2023-07-31 | 2024-03-08 | 滁州市精美家电设备股份有限公司 | Passive interlocking type nozzle and foaming equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |