CN205705112U - A kind of injection mold is autotomyed gate mechanism - Google Patents
A kind of injection mold is autotomyed gate mechanism Download PDFInfo
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- CN205705112U CN205705112U CN201620124956.7U CN201620124956U CN205705112U CN 205705112 U CN205705112 U CN 205705112U CN 201620124956 U CN201620124956 U CN 201620124956U CN 205705112 U CN205705112 U CN 205705112U
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- cutting knife
- cast gate
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- gate
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Abstract
A kind of injection mold is autotomyed gate mechanism, relate to plastics or the injection moulding of plastic state substance and equipment thereof, particularly relate to a kind of cast gate for injection-moulding device or the shearing device of ingate, it is made up of cutter and driving means, cutter includes the first gating insert and the second gating insert, cast gate cutting knife is removably fixed on cast gate tool rest, with sliding matching mode through cutting knife guide groove, cast gate tool rest through cutting knife guide pin bushing, forms two sections of guiding rectilinear motion modes of cast gate cutting knife with sliding matching mode；Driving means promotes cast gate cutting knife and the first gating insert to coordinate and produces shearing force, cuts off the cast gate connecting injecting products.Mechanism can configure according to the flexible structure of injecting products difformity cast gate, it is easy to rapid-maintenance change, it is conveniently adjusted the gap between cutting knife and mould during gate cutting, injected plastics material can be avoided to remain in formation slitter edge in gap, improve the efficiency that injection produces.
Description
Technical field
This utility model relates to plastics or the injection moulding of plastic state substance and equipment thereof, particularly relates to a kind of for being molded
The cast gate of equipment or the shearing device of ingate.
Background technology
The complex geometry such as the lens of automobile lamp, photoconduction and reflecting mirror, generally use BMC (BMC)
Or PC material (polycarbonate plastic) injection mo(u)lding, existing injection mold gate structure is generally simple cast gate, product
Need after injection mo(u)lding artificially to be removed by cast gate, and struck off by burr unnecessary at cast gate.Cast gate demolishing process not only can wave
Take substantial amounts of human resources, but also be easy to damage of product when scraping burr, increase the loss of product.
Chinese invention patent application " cast gate cutting injection moulding mould " (application for a patent for invention number: 201410431137.2 applications
Publication No.: CN104175498A) disclose a kind of cast gate cutting injection moulding mould, including: base, mold, lower mold,
Top board, guide pillar guide pin bushing, injection molding tube, tube core, spring and heater, described base is provided with in lower mold, lower mold and sets
Being equipped with mold, top board is arranged on base surrounding above mold and is provided with guide pillar guide pin bushing, and described injection molding tube is arranged on upper mold
Above tool, and arranging with mold central axis coaxial, being provided with tube core in injection molding tube, spring housing is connected on tube core, note
Mould and outside pipe, be provided with heater.The tube core front end of this cast gate cutting injection moulding mould is provided with cut-out head, can conveniently cut off
Cast gate realizes the removing of gate vestiges.But, due to the complex geometry such as lens, photoconduction and reflecting mirror of automobile lamp,
Its gate shape also varies, and the cut-out head of technique scheme is placed in inside cast gate, it is impossible to meets difformity and waters
The requirement of mouth, does not the most adapt to the requirement of the modern production pattern of small lot multi items.
Utility model content
The purpose of this utility model is to provide the injection mold of a kind of cast gate for removing injecting products to autotomy cast gate machine
Structure, this utility model solves above-mentioned technical problem and be the technical scheme is that
A kind of injection mold is autotomyed gate mechanism, by cutter with for driving the driving means of cutter to constitute, uses
In the cast gate removing injecting products, it is characterised in that described cutter forms the first of injection channel after including matched moulds
Gating insert and the second gating insert, for cutting off cast gate cutting knife and the cast gate tool rest of fixing cast gate cutting knife of cast gate, and
The cutting knife guide pin bushing guided is provided for cast gate cutting knife and cast gate tool rest；The moulding of described cast gate cutting knife and injecting products cast gate position
Shape consistent；The inside of described second gating insert is dug the cutting knife guide groove being slidably matched with cast gate cutting knife；Described cut
The center line of cutter guide groove and cutting knife guide pin bushing and the linear movement direction conllinear of cast gate cutting knife；Described cast gate cutting knife is with detachable side
Formula is fixed on cast gate tool rest, with sliding matching mode through the cutting knife guide groove within the second gating insert, described cast gate
Tool rest through cutting knife guide pin bushing, forms two sections of guiding rectilinear motion modes of cast gate cutting knife with sliding matching mode；Described drives
Dynamic device promotes cast gate tool rest along cutting knife guide bush movement, drives cast gate cutting knife to slide in the cutting knife guide groove of the second gating insert,
Coordinate generation shearing force with the first gating insert, cut off the cast gate connecting injecting products.
Injection mold of the present utility model is autotomyed the one preferably technical scheme of gate mechanism, it is characterised in that described hydraulic pressure
The injection pressure that the maximum pressure that cylinder cylinder diameter can bear is born more than cast gate cutting knife in injection moulding process；Described hydraulic cylinder
The coupling mechanism force of cast gate cutting knife can either be provided during mould mold-closing injection, again can be during injecting products ejection device
The cut-out driving force of cast gate cutting knife is provided.
Injection mold of the present utility model is autotomyed a kind of superior technique scheme of gate mechanism, it is characterised in that described cuts
Cutter guide pin bushing is fixed on the dynamic model side of injection mold by cutting knife guide pin bushing backing plate；Described driving means includes inclined-plane chute, even
Extension bar and hydraulic cylinder；The head of described inclined-plane chute is connected to the T-shaped slide block of cast gate tool rest by oblique T-slot, described
The afterbody of inclined-plane chute is connected to the connecting rod of hydraulic cylinder by normal direction T-slot, constitutes the inclined plane slide block driving cast gate cutting knife
Structure；Described hydraulic cylinder promotes cast gate tool rest along cutting knife guide bush movement by inclined-plane chute, drives cast gate cutting knife second
Slide in the cutting knife guide groove of gating insert；Described cast gate cutting knife and the first gating insert coordinate generation shearing force, the company of cut-out
Connect the cast gate of injecting products.
Injection mold of the present utility model is autotomyed the another kind of superior technique scheme of gate mechanism, is used for carrying top, cover half side
Go out the injection machine of mechanism, it is characterised in that described driving means is the thrust part of the cover half side ejecting mechanism of injection machine,
Described cutting knife guide pin bushing is fixed on the cover half side of injection mold by cutting knife guide pin bushing backing plate, and described cast gate tool rest is connected to note
The cover half side ejecting mechanism of molding machine, relies on the thrust that ejects of injection machine cover half side, promotes cast gate cutting knife and the first gating insert
Fit and produce shearing force, before injecting products ejection die, cutting off its cast gate.
Injection mold of the present utility model is autotomyed the technical scheme of a kind of improvement of gate mechanism, it is characterised in that described
Gating insert backing plate it is embedded with, by adjusting between gating insert backing plate regulation cutting knife and cast gate cutting knife on one gating insert
Fit clearance, makes gating insert backing plate tightly coordinate with the cutting edge of cast gate cutting knife, to avoid injected plastics material to remain in whole joining
Slitter edge is formed in gap.
Injection mold of the present utility model is autotomyed a kind of preferably technical scheme of gate mechanism, it is characterised in that described cast gate
The cutting edge angle of cutting knife is 45～55 °, and cutting edge thickness is 1.0～1.5mm.
The beneficial effects of the utility model are:
1, injection mold of the present utility model gate mechanism of autotomying uses the second gating insert and the first gating insert structure, can
Configure with the structure fast and flexible according to injecting products difformity cast gate, and be easy to rapid-maintenance replacing.Employing can
The gating insert backing structure of alternate form, it is simple to adjust the gap between cutting knife and mould during gate cutting, can keep away
Exempt from injected plastics material and remain in formation slitter edge in gap, improve the efficiency that injection produces.
2, injection mold of the present utility model autotomy gate mechanism cast gate cutting knife use two sections of guidance modes, can effectively protect
The stability of card cast gate cutting knife motion, thus ensure cut off quality and improve blade life.
3, injection mold of the present utility model gate mechanism of autotomying can realize the cast gate of injecting products and autotomys, it is possible to adapt to little
The requirement of the modern production pattern of multi items in batches, is possible not only to save human resources, it is also possible to optimize runner section,
Reduce product rejection rate, reduce product loss.
Accompanying drawing explanation
Fig. 1 is that injection mold of the present utility model is autotomyed the perspective view of gate mechanism；
Fig. 2 is that injection mold of the present utility model is autotomyed the top view of gate mechanism；
Fig. 3 be injection mold of the present utility model autotomy gate mechanism injection state A-A sectional view；
Fig. 4 be injection mold of the present utility model autotomy gate mechanism injection state B-B sectional view；
Fig. 5 is that injection mold of the present utility model is autotomyed the A-A sectional view of gate mechanism edge of a knife closure state；
Fig. 6 is that injection mold of the present utility model is autotomyed the B-B sectional view of gate mechanism edge of a knife closure state；
Fig. 7 is to use gating insert backing plate to adjust cutting knife and the schematic diagram of die clearance during gate cutting；
Fig. 8 is that injection mold of the present utility model is autotomyed the cast gate cutter edge schematic diagram of gate mechanism；
Fig. 9 is that injection mold is autotomyed the cast gate cutting knife of gate mechanism and the first gating insert fit clearance schematic diagram.
The label of each parts in above figure: 10-cutter, 11-the first gating insert, 12-gating insert backing plate, 13-
Second gating insert, 14-cast gate cutting knife, 15-cast gate tool rest, 16-cutting knife guide pin bushing, 17-cutting knife guide pin bushing backing plate, 18-T type
Slide block, 20-driving means, 21-inclined-plane chute, 22-connecting rod, 23-hydraulic cylinder, 30-cast gate, 31-fit clearance,
40-injecting products.
Detailed description of the invention
For better understanding of technique scheme of the present utility model, carry out further with embodiment below in conjunction with the accompanying drawings
Ground describes in detail.
Fig. 1 to Fig. 4 is that injection mold of the present utility model is autotomyed an embodiment of gate mechanism, is used for removing injection and produces
The cast gate of product, by cutter 10 with for driving the driving means 20 of cutter 10 to constitute, such as Fig. 3 and Fig. 4 institute
Showing, described cutter 10 forms first gating insert 11 and second of injected plastics material injection channel and waters after including matched moulds
Mouth insert 13, for cutting off cast gate cutting knife 14 and the cast gate tool rest 15 of fixing cast gate cutting knife of cast gate, and cuts for cast gate
Cutter 14 and cast gate tool rest 15 provide the cutting knife guide pin bushing 16 guided；The moulding of described cast gate cutting knife 14 is watered with injecting products 40
The shape of port part is consistent；The inside of described second gating insert 13 is dug the cutting knife being slidably matched with cast gate cutting knife 14
Guide groove 19；The center line of described cutting knife guide groove 19 and cutting knife guide pin bushing 16 and the linear movement direction conllinear of cast gate cutting knife 14；Institute
The cast gate cutting knife 14 stated removably is fixed on cast gate tool rest 15, with sliding matching mode through described cutting knife
Guide groove 19, described cast gate tool rest 15 through cutting knife guide pin bushing 16, forms two sections of cast gate cutting knife 14 with sliding matching mode
Guide rectilinear motion mode；Described driving means 20 promotes cast gate tool rest 15 to move along cutting knife guide pin bushing 16, drives cast gate
Cutting knife 14 slides in the cutting knife guide groove 19 of the second gating insert 13, coordinates generation shearing force with the first gating insert 11,
Cut off the cast gate 30 connecting injecting products 40.
Autotomy according to the injection mold of the present utility model shown in Fig. 1 and Fig. 3 the embodiment of gate mechanism, described first
Gating insert backing plate 12 it is embedded with, by adjusting between gating insert backing plate 12 and cast gate cutting knife 14 on gating insert 11
Fit clearance, makes gating insert backing plate 12 tightly coordinate with the cutting edge of cast gate cutting knife 14, to avoid injected plastics material to remain
In fit clearance, form slitter edge, affect the Forming Quality of next mould.Gating insert backing plate 12 and cast gate cutting knife 14 blade
The matching relationship in portion sees Fig. 7 and Fig. 8 (partial enlarged drawing).
Autotomying according to injection mold of the present utility model the embodiment of gate mechanism, described hydraulic cylinder 23 cylinder diameter can bear
The injection pressure that maximum pressure is born more than cast gate cutting knife 14 in injection moulding process；Described hydraulic cylinder 23 can either be at mould
The coupling mechanism force of cast gate cutting knife 14 is provided during tool mold-closing injection, cast gate can be provided again during injecting products ejection device
The cut-out driving force of cutting knife 14.
Autotomy according to the injection mold of the present utility model shown in Fig. 1 and Fig. 3 the embodiment of gate mechanism, described cutting knife
Guide pin bushing 16 is fixed on the dynamic model side of injection mold by cutting knife guide pin bushing backing plate 17；Described driving means 20 includes that inclined-plane is sliding
Groove 21, connecting rod 22 and hydraulic cylinder 23；The head of described inclined-plane chute 21 is connected to cast gate tool rest by oblique T-slot
The T-shaped slide block 18 of 15, the afterbody of described inclined-plane chute 21 is connected to the connecting rod 22 of hydraulic cylinder 23 by normal direction T-slot,
Constitute the inclined plane slide block structure driving cast gate cutting knife 14；Described hydraulic cylinder 23 promotes cast gate tool rest by inclined-plane chute 21
15 move along cutting knife guide pin bushing 16, drive cast gate cutting knife 14 to slide in the cutting knife guide groove 19 of the second gating insert 13；Institute
The cast gate cutting knife 14 stated coordinates generation shearing force with the first gating insert 11, cuts off the cast gate 30 connecting injecting products 40.
The autotomy cast gate cutting knife 14 of gate mechanism of injection mold of the present utility model can use various ways and various ways
Drive, such as hydraulic pressure, pneumatically or electrically cylinder and ejector retainner plate etc..Fig. 9 is that injection mold of the present utility model is autotomyed cast gate
Mechanism is for an embodiment of BMC reflector mould, and for carrying the injection machine of cover half side ejecting mechanism, described drives
Dynamic device 20 is the thrust part of the cover half side ejecting mechanism of injection machine, and described cutting knife guide pin bushing 16 is by cutting knife guide pin bushing pad
Plate 17 is fixed on the cover half side of injection mold, and described cast gate tool rest 15 is connected to the cover half side ejecting mechanism of injection machine,
Rely on the thrust that ejects of injection machine cover half side, promote cast gate cutting knife 14 and the first gating insert 11 fit and produce shearing force,
Its cast gate 30 was cut off before injecting products 40 ejection die.For clarity sake, Fig. 9 only represents cast gate cutting knife 14,
Cast gate tool rest 15 and the position matching of the first gating insert 11, and injection mold is represented by dashed line.
Autotomy according to injection mold of the present utility model the preferred embodiment of gate mechanism, the cutting edge of described cast gate cutting knife 14
Angle is 45～55 °, and cutting edge thickness is 1.0～1.5mm, sees Fig. 8.
The autotomy motion flow of gate mechanism of injection mold of the present utility model is as follows:
The first step, hydraulic cylinder 23 drives cast gate cutting knife 14 to be placed in injection state, as shown in Figure 3 and Figure 4；
Second step, mould matched moulds, by injection channel injection injected plastics material pressurize molding, forms injecting products 40；
3rd step, after pressurize terminates, hydraulic cylinder 23 oil supply, drive cast gate cutting knife 14 to be moved upward to edge of a knife closure state,
As shown in Figure 5 and Figure 6, the cast gate 30 that injected plastics material in injection channel is formed is cut off；
4th step, injecting products 40 ejects, and carries out pickup by mechanical hand, after pickup, the reverse oil supply of hydraulic cylinder 23,
Cast gate cutting knife 14 is driven to return to the state of injection；
5th step, returns second step mold-closing injection again, formation injection cycle of going round and beginning again.
Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to this utility model is described
Technical scheme, and be not used as to restriction of the present utility model, any based on connotation of the present utility model to
Go up change, modification that described embodiment is made, all will fall in scope of the claims of the present utility model.
Claims (6)
1. an injection mold is autotomyed gate mechanism, by cutter with for driving the driving means of cutter to constitute, for removing the cast gate of injecting products, it is characterized in that, described cutter forms the first gating insert and second gating insert of injection channel after including matched moulds, for cutting off cast gate cutting knife and the cast gate tool rest of fixing cast gate cutting knife of cast gate, and provide, for cast gate cutting knife and cast gate tool rest, the cutting knife guide pin bushing guided；The moulding of described cast gate cutting knife is consistent with the shape at injecting products cast gate position；The inside of described second gating insert is dug the cutting knife guide groove being slidably matched with cast gate cutting knife；The center line of described cutting knife guide groove and cutting knife guide pin bushing and the linear movement direction conllinear of cast gate cutting knife；Described cast gate cutting knife is removably fixed on cast gate tool rest, with sliding matching mode through the cutting knife guide groove within the second gating insert, described cast gate tool rest through cutting knife guide pin bushing, forms two sections of guiding rectilinear motion modes of cast gate cutting knife with sliding matching mode；Described driving means promotes cast gate tool rest along cutting knife guide bush movement, drives cast gate cutting knife to slide in the cutting knife guide groove of the second gating insert, coordinates generation shearing force with the first gating insert, cuts off the cast gate connecting injecting products.
Injection mold the most according to claim 1 is autotomyed gate mechanism, it is characterised in that described cutting knife guide pin bushing is fixed on the dynamic model side of injection mold by cutting knife guide pin bushing backing plate；Described driving means includes inclined-plane chute, connecting rod and hydraulic cylinder；The head of described inclined-plane chute is connected to the T-shaped slide block of cast gate tool rest by oblique T-slot, and the afterbody of described inclined-plane chute is connected to the connecting rod of hydraulic cylinder by normal direction T-slot, constitutes the inclined plane slide block structure driving cast gate cutting knife；Described hydraulic cylinder promotes cast gate tool rest along cutting knife guide bush movement by inclined-plane chute, drives cast gate cutting knife to slide in the cutting knife guide groove of the second gating insert；Described cast gate cutting knife and the first gating insert coordinate generation shearing force, cut off the cast gate connecting injecting products.
Injection mold the most according to claim 2 is autotomyed gate mechanism, it is characterised in that the injection pressure that the maximum pressure that described hydraulic cylinder cylinder diameter can bear is born more than cast gate cutting knife in injection moulding process；Described hydraulic cylinder can either provide the coupling mechanism force of cast gate cutting knife during mould mold-closing injection, can provide again the cut-out driving force of cast gate cutting knife during injecting products ejection device.
Injection mold the most according to claim 1 is autotomyed gate mechanism, for carrying the injection machine of cover half side ejecting mechanism, it is characterized in that the thrust part of the cover half side ejecting mechanism that described driving means is injection machine, described cutting knife guide pin bushing is fixed on the cover half side of injection mold by cutting knife guide pin bushing backing plate, described cast gate tool rest is connected to the cover half side ejecting mechanism of injection machine, rely on injection machine cover half side ejects thrust, promote cast gate cutting knife and the first gating insert fit and produce shearing force, before injecting products ejection die, cut off its cast gate.
5. autotomy gate mechanism according to the injection mold described in any claim of Claims 1-4, it is characterized in that being embedded with gating insert backing plate on the first described gating insert, by adjusting the fit clearance between gating insert backing plate regulation cutting knife and cast gate cutting knife, make gating insert backing plate tightly coordinate with the cutting edge of cast gate cutting knife, whole joining form slitter edge in gap to avoid injected plastics material to remain in.
6. autotomy gate mechanism according to the injection mold described in any claim of Claims 1-4, it is characterised in that the cutting edge angle of described cast gate cutting knife is 45～55 °, and cutting edge thickness is 1.0～1.5mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620124956.7U CN205705112U (en) | 2016-02-17 | 2016-02-17 | A kind of injection mold is autotomyed gate mechanism |
| PCT/CN2016/090385 WO2017140086A1 (en) | 2016-02-17 | 2016-07-19 | Automatic sprue cutting mechanism of injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620124956.7U CN205705112U (en) | 2016-02-17 | 2016-02-17 | A kind of injection mold is autotomyed gate mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN205705112U true CN205705112U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620124956.7U Active CN205705112U (en) | 2016-02-17 | 2016-02-17 | A kind of injection mold is autotomyed gate mechanism |
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| CN (1) | CN205705112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192818A (en) * | 2020-09-16 | 2021-01-08 | 广东联塑科技实业有限公司 | Automatic cut mould structure at mouth of a river |
-
2016
- 2016-02-17 CN CN201620124956.7U patent/CN205705112U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192818A (en) * | 2020-09-16 | 2021-01-08 | 广东联塑科技实业有限公司 | Automatic cut mould structure at mouth of a river |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd. Address before: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |