CN105415608A - Automatic sprue cut-off device - Google Patents
Automatic sprue cut-off device Download PDFInfo
- Publication number
- CN105415608A CN105415608A CN201510972672.3A CN201510972672A CN105415608A CN 105415608 A CN105415608 A CN 105415608A CN 201510972672 A CN201510972672 A CN 201510972672A CN 105415608 A CN105415608 A CN 105415608A
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- CN
- China
- Prior art keywords
- oil cylinder
- cast gate
- cutting knife
- mould
- disconnecting device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/38—Cutting-off equipment for sprues or ingates
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an automatic sprue cut-off device. The automatic sprue cut-off device comprises an oil cylinder which is arranged on a mold. The oil cylinder is connected with an electromagnetic valve through an oil pipe and also connected with an oil cylinder connecting block. The oil cylinder connecting block is connected with an oblique cutter wedge. The oblique cutter wedge is connected with a sprue cutter. The sprue cutter is arranged below a sprue of the mold and is in clearance fit with a sprue insert. The sprue insert is fixedly arranged on the mold. Compared with the prior art, by the adoption of the automatic sprue cut-off device, the rejection rate is decreased, the injection molding period is shortened, and the input cost of an enterprise is reduced; in addition, the device is simple in structure, convenient to manufacture and install, capable of being debugged rapidly, and suitable for wide-range application and popularization.
Description
Technical field
The present invention relates to injection mold apparatus field, particularly relate to cast gate automatic disconnecting device.
Background technology
Injection mold is a kind of instrument producing plasthetics; Also be the instrument giving plasthetics complete structure and accurate dimension.A kind of processing method used when injection mo(u)lding is some complex-shaped parts of batch production.The material melted that is heated is injected die cavity by high pressure by concrete finger, after cooling curing, obtains formed products.
Although the structure of mould may be ever-changing because plastics variety and performance, the shape of plastic products and the type of structure and injector etc. are different, basic structure is consistent.Mould forms primarily of running gate system, thermoregulating system, forming part and constitutional detail.Wherein running gate system and forming part are direct contact portion with plastics, and change with plastics and goods, are the most complicated in mold, change maximum, require processing fineness and the highest part of precision.
Injection mold is made up of dynamic model and cover half two parts, and dynamic model is arranged on the moving die plate of injection (mo(u)lding) machine, and cover half is arranged on the fixed form of injection (mo(u)lding) machine.When injection moulding, dynamic model and cover half close and form running gate system and die cavity, and during die sinking, dynamic model is separated to take out plastic products with cover half.In order to reduce heavy Design of Dies and manufacturing effort, injection mould have employed standard die set mostly.
Running gate system is also known as flow passage system, and it is one group of feeding-passage of plastic melt being guided into die cavity by nozzle of injector, is usually made up of sprue, runner, cast gate and cold slug well.It is directly connected to Forming Quality and the production efficiency of plastic products.
Generally speaking, injection moulding die casting mouth refers to one section of passage from runner to mold cavity, is the minimum and the shortest part in running gate system middle section.The position of cast gate, quantity, the outward appearance of shape and size to plastic products quality, product all have a direct impact, and therefore need the design paying attention to cast gate in the design process.General sprue and runners connects, and the material for molding injection injects cavity and forms moulded product.The current most enterprise that is separated of product and cast gate adopts manually shearing, and which increase the amount of labour of workman, production efficiency is low, and sheared edge is inconsistent, and percent defective is high, and product quality does not ensure, needs for further processing.Having another kind of excision mode at present, is exactly tool excision glue-feeder.Adopt the method, percent defective is lower than artificial excision, but all needs commissioning device when producing at every turn, and the required cycle is long.Some large enterprises have developed a kind of method earnestly except glue-feeder in mould, adopt the method can to reduce the number of rejects and seconds rate, but input cost are too high, is unsuitable for promoting the use of on a large scale.
Summary of the invention
The present invention is directed to deficiency of the prior art, provide cast gate automatic disconnecting device, adopt this device that percent defective is reduced, injection molding cycle time, enterprise's input cost is low, and device structure is simple, easily manufactured, be convenient to install, and debugging is quick, is applicable to promote the use of on a large scale.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: cast gate automatic disconnecting device, comprise the oil cylinder be arranged on mould, described oil cylinder is connected with magnetic valve by oil pipe, described oil cylinder is connected with oil cylinder contiguous block, and described oil cylinder contiguous block is connected with cutting knife tapered wedges, and described cutting knife tapered wedges is connected with cast gate cutting knife, below the cast gate that described cast gate cutting knife is arranged at described mould and with sprue mold insert matched in clearance, described sprue mold insert is fixedly installed on described mould.
In technique scheme, preferably, described magnetic valve is connected with socket by electric wire, and described socket is fixed on mould by bolt two, and described socket is connected with time schedule controller and this time schedule controller is connected with injection machine pressurize holding wire.
In technique scheme, preferably, described oil cylinder is fixed on described mould by bolt four and square key.
In technique scheme, preferably, described magnetic valve is fluid pressure type magnetic valve, and described magnetic valve to be fixed on described mould by bolt three and to be controlled the advance and retreat work of oil cylinder by described oil pipe.
In technique scheme, preferably, described oil cylinder contiguous block is connected with described oil cylinder by T-shape slot.
In technique scheme, preferably, described oil cylinder contiguous block is connected with cutting knife tapered wedges by T-shape slot.
In technique scheme, preferably, described cutting knife tapered wedges is connected with cast gate cutting knife by T-shape slot.
In technique scheme, preferably, described sprue mold insert is fixedly installed on described mould by bolt one.
In technique scheme, preferably, described mould is fixedly installed first holder and second holder, in described first holder, is movably set with oil cylinder contiguous block, in described second holder, be movably set with cutting knife tapered wedges.
The present invention adopts this device that percent defective is reduced, injection molding cycle time, and enterprise's input cost is low, and device structure is simple, easily manufactured, be convenient to install, and debugging is quick, is applicable to promote the use of on a large scale.
Accompanying drawing explanation
Fig. 1 is structure schematic diagram of the present invention.
Fig. 2 is Facad structure schematic diagram of the present invention.
Fig. 3 is scheme of installation of the present invention.
Fig. 4 is sprue mold insert scheme of installation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail: as shown in Figures 1 to 4, cast gate automatic disconnecting device, comprise the oil cylinder 2 be arranged on mould 1, described oil cylinder 2 is connected with magnetic valve 3 by oil pipe 21, described oil cylinder 2 is connected with oil cylinder contiguous block 22, described oil cylinder contiguous block 22 is connected with cutting knife tapered wedges 4, described cutting knife tapered wedges 4 is connected with cast gate cutting knife 5, below the cast gate that described cast gate cutting knife 5 is arranged at described mould 1 and with sprue mold insert 6 matched in clearance, described sprue mold insert 6 is fixedly installed on described mould 1.
Described magnetic valve 3 is connected with socket 7 by electric wire 71, and described socket 7 is fixed on mould by bolt 2 14, and described socket 7 is connected with time schedule controller and this time schedule controller is connected with injection machine pressurize holding wire.
Described oil cylinder 2 is fixed on described mould 1 by bolt 4 16 and square key 23.
Described magnetic valve 3 is fluid pressure type magnetic valve, and described magnetic valve 3 to be fixed on described mould 1 by bolt 3 15 and to be controlled the advance and retreat work of oil cylinder 2 by described oil pipe 21.
Described oil cylinder contiguous block 22 is connected with described oil cylinder 2 by T-shape slot.Such setting, makes oil cylinder 2 that this oil cylinder contiguous block 22 can be driven to move.
Described oil cylinder contiguous block 22 is connected with cutting knife tapered wedges 4 by T-shape slot.
Described cutting knife tapered wedges 4 is connected with cast gate cutting knife 5 by T-shape slot.
Described sprue mold insert 6 is fixedly installed on described mould 1 by bolt 1.
Described mould 1 is fixedly installed first holder 11 and second holder 12, in described first holder 11, is movably set with oil cylinder contiguous block 22, in described second holder 12, be movably set with cutting knife tapered wedges 4.
The T-shape slot that the oil cylinder contiguous block 22 of this device is connected with cutting knife tapered wedges 4 is oblique, and both movements by first holder 11 and second holder 12 limit, therefore, after oil cylinder contiguous block 22 moves, cutting knife tapered wedges 4 can be promoted and move in the direction vertical with oil cylinder contiguous block 22 moving direction.
The T-shape slot that the cutting knife tapered wedges 4 of this device is connected with cast gate cutting knife 5 is oblique, so when cutting knife tapered wedges 4 moves, cast gate cutting knife 5 can move in the direction that cutting knife tapered wedges 4 moving direction is vertical.
Cast gate cutting knife 5 sprue mold insert 6 matched in clearance in this device, and below the cast gate being arranged at mould 1, therefore cast gate cutting knife 5 can move up and down and realize cutting off glue-feeder work.
This device is arranged on below injection mold glue-feeder (dynamic model or cover half), cuts off glue-feeder again after mold injects pressurize completes.
Prove through experiment repeatedly, adopt the injection mold of this device, the production cycle of producing product shortens 2-4s; The cost reduction 95% that enterprise drops into; The yields of product improves 13.12%.
During injection mo(u)lding, after injection pressurize completes, time schedule controller drives hydraulic jack by glue-feeder and separation of products to signal electromagnet valve, product surface can not be left a trace, product surface is attractive in appearance, eliminate product after die sinking ejects, also need step that is artificial or tool excision Jiao Kou, save the production time.
During the work of this device, the sequence of movement of all parts: when injection mold injection pressurize X second, also namely time schedule controller time delay X second afterwards namely pressurize complete, now time schedule controller sends a signal to socket 7.After fluid pressure type magnetic valve 3 obtains this signal from socket 7, oil cylinder 2 will be controlled by oil pipe 21 and eject, thus drive oil cylinder contiguous block 22 to travel forward.Under the effect of the T-shape slot of oil cylinder contiguous block 22 surface thereof, drive the action of cutting knife tapered wedges 4.Under the T-shape slot effect of cutting knife tapered wedges 4 inclined-plane, cause cast gate cutting knife 5 to move upward again, cut off glue-feeder, successfully by Jiao Kou and separation of products.
Protection scope of the present invention includes but not limited to above embodiment, and protection scope of the present invention is as the criterion with claims, and any replacement that those skilled in the art will find apparent that, distortion, improvement made this technology all falls into protection scope of the present invention.
The present invention adopts this device that percent defective is reduced, injection molding cycle time, and enterprise's input cost is low, and device structure is simple, easily manufactured, be convenient to install, and debugging is quick, is applicable to promote the use of on a large scale.
Claims (9)
1. cast gate automatic disconnecting device, it is characterized in that: comprise the oil cylinder (2) be arranged on mould (1), described oil cylinder (2) is connected with magnetic valve (3) by oil pipe (21), described oil cylinder (2) is connected with oil cylinder contiguous block (22), described oil cylinder contiguous block (22) is connected with cutting knife tapered wedges (4), described cutting knife tapered wedges (4) is connected with cast gate cutting knife (5), below the cast gate that described cast gate cutting knife (5) is arranged at described mould (1) and with sprue mold insert (6) matched in clearance, described sprue mold insert (6) is fixedly installed on described mould (1).
2. cast gate automatic disconnecting device according to claim 1, it is characterized in that: described magnetic valve (3) is connected with socket (7) by electric wire (71), described socket (7) is fixed on mould by bolt two (14), and described socket (7) is connected with time schedule controller and this time schedule controller is connected with injection machine pressurize holding wire.
3. cast gate automatic disconnecting device according to claim 1, is characterized in that: described oil cylinder (2) is fixed on described mould (1) by bolt four (16) and square key (23).
4. cast gate automatic disconnecting device according to claim 1, it is characterized in that: described magnetic valve (3) is fluid pressure type magnetic valve, described magnetic valve (3) is fixed on described mould (1) by bolt three (15) and goes up and the advance and retreat work being controlled oil cylinder (2) by described oil pipe (21).
5. cast gate automatic disconnecting device according to claim 1, is characterized in that: described oil cylinder contiguous block (22) is connected with described oil cylinder (2) by T-shape slot.
6. cast gate automatic disconnecting device according to claim 1, is characterized in that: described oil cylinder contiguous block (22) is connected with cutting knife tapered wedges (4) by T-shape slot.
7. cast gate automatic disconnecting device according to claim 1, is characterized in that: described cutting knife tapered wedges (4) is connected with cast gate cutting knife (5) by T-shape slot.
8. cast gate automatic disconnecting device according to claim 1, is characterized in that: described sprue mold insert (6) is fixedly installed on described mould (1) by bolt one (13).
9. cast gate automatic disconnecting device according to claim 1, it is characterized in that: described mould (1) is fixedly installed first holder (11) and second holder (12), be movably set with oil cylinder contiguous block (22) in described first holder (11), in described second holder (12), be movably set with cutting knife tapered wedges (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972672.3A CN105415608A (en) | 2015-12-23 | 2015-12-23 | Automatic sprue cut-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972672.3A CN105415608A (en) | 2015-12-23 | 2015-12-23 | Automatic sprue cut-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105415608A true CN105415608A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510972672.3A Pending CN105415608A (en) | 2015-12-23 | 2015-12-23 | Automatic sprue cut-off device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105415608A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042300A (en) * | 2016-06-29 | 2016-10-26 | 苏州天朋精密元器件有限公司 | Plastic die with automatic waste cutoff function |
| CN107415175A (en) * | 2017-03-30 | 2017-12-01 | 苏州华科精密模具有限公司 | A kind of injection mold enters rubber moulding internal cutting off device |
| CN109228154A (en) * | 2018-09-20 | 2019-01-18 | 联塑科技发展(武汉)有限公司 | A kind of accessory automatic shearing cast gate injection mold |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201604267U (en) * | 2009-12-01 | 2010-10-13 | 东莞市旭通达模具塑胶有限公司 | Injection mold capable of automatically cutting off waste materials |
| CN103624939A (en) * | 2013-12-19 | 2014-03-12 | 重庆前卫宏华科技有限责任公司 | Full-automatic water gap side-cutting machine |
| CN203792651U (en) * | 2014-03-07 | 2014-08-27 | 嘉兴信元精密模具科技有限公司 | Injection mould with shoulder lapping type sprue trimming device |
| CN104742167A (en) * | 2015-04-07 | 2015-07-01 | 苏州井上橡塑有限公司 | Automatic rubber product notching jig |
| CN205416258U (en) * | 2015-12-23 | 2016-08-03 | 平江县职业技术学校 | Runner automatic cutting device |
-
2015
- 2015-12-23 CN CN201510972672.3A patent/CN105415608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201604267U (en) * | 2009-12-01 | 2010-10-13 | 东莞市旭通达模具塑胶有限公司 | Injection mold capable of automatically cutting off waste materials |
| CN103624939A (en) * | 2013-12-19 | 2014-03-12 | 重庆前卫宏华科技有限责任公司 | Full-automatic water gap side-cutting machine |
| CN203792651U (en) * | 2014-03-07 | 2014-08-27 | 嘉兴信元精密模具科技有限公司 | Injection mould with shoulder lapping type sprue trimming device |
| CN104742167A (en) * | 2015-04-07 | 2015-07-01 | 苏州井上橡塑有限公司 | Automatic rubber product notching jig |
| CN205416258U (en) * | 2015-12-23 | 2016-08-03 | 平江县职业技术学校 | Runner automatic cutting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042300A (en) * | 2016-06-29 | 2016-10-26 | 苏州天朋精密元器件有限公司 | Plastic die with automatic waste cutoff function |
| CN107415175A (en) * | 2017-03-30 | 2017-12-01 | 苏州华科精密模具有限公司 | A kind of injection mold enters rubber moulding internal cutting off device |
| CN107415175B (en) * | 2017-03-30 | 2023-10-27 | 苏州华科精密模具有限公司 | Cutting device in injection mold glue feeding mold |
| CN109228154A (en) * | 2018-09-20 | 2019-01-18 | 联塑科技发展(武汉)有限公司 | A kind of accessory automatic shearing cast gate injection mold |
| CN109228154B (en) * | 2018-09-20 | 2024-04-05 | 联塑科技发展(武汉)有限公司 | Automatic shearing gate injection mold for accessories |
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Application publication date: 20160323 |
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