CN202388719U - Annular plastic feeding and precutting structure - Google Patents
Annular plastic feeding and precutting structure Download PDFInfo
- Publication number
- CN202388719U CN202388719U CN2011205022757U CN201120502275U CN202388719U CN 202388719 U CN202388719 U CN 202388719U CN 2011205022757 U CN2011205022757 U CN 2011205022757U CN 201120502275 U CN201120502275 U CN 201120502275U CN 202388719 U CN202388719 U CN 202388719U
- Authority
- CN
- China
- Prior art keywords
- pin
- counterdie
- cut
- towards
- die
- 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 - Fee Related
Links
Images
Abstract
The utility model discloses an annular plastic feeding and precutting structure, which comprises an upper die, a lower die, a cutting punch-pin, a limiting block and a push pin, wherein the upper die and the lower die are matched with each other, and the cutting punch-pin, the limiting block and the push pin are arranged in the lower die. During die assembly, the upper die and the lower die define a mold cavity, and the upper die is provided with a channel communicated with the mold cavity. The lower end of the cutting punch-pin is slidably limited in the lower die, and the upper end of the cutting punch-pin penetrates through the mold cavity and stretches into the channel. The limiting block is arranged in the lower die, and the push pin is arranged in the limiting block in the lower die in an up-and-down movement manner. During working, the push pin slides upwards in a manner of pushing against the punch-pin so as to make the upper end of the cutting punch-pin seal an annular gap between the channel and the mold cavity and cut off the connection of plastic in the channel and the mold cavity, so that cutting procedures are reduced, the plastic wastes in the channel are reduced, and the annular plastic feeding and precutting structure is simple and is favorable for saving manufacture cost.
Description
Technical field
The purpose of the utility model is to overcome deficiency of the prior art, provides a kind of ring-type to advance glue pre-cutting structure especially.
Background technology
Along with making constant progress of science and technology, plastic products are widely used in the commodity miscellaneous, for example the computer of product, mobile phone, automobile, digital camera, game machine etc.Above-mentioned plastic products often come machine-shaping through injection mold, and different dies is made up of different parts, mainly realize the processing of article profile through the change of institute's moulding material physical state.Conventional molds comprises male model and the master mold that cooperatively interacts; Male model and master mold surround die cavity; During work, the hot machine mouth of injection machine injects the plastics of molten state in injection mold, and the plastics of molten state get in the die cavity along the runner of injection mold; Through supercooling, die sinking, operation such as eject, accomplish the moulding of plastic products.
But above-mentioned mould is in cooling and demolding, and the operation that also will carry out separating with product in artificial shearing flow road could obtain product, has produced unnecessary waste of material, has improved production cost.
Summary of the invention
The purpose of the utility model is to provide a kind of ring-type to advance glue pre-cutting structure to the deficiency of above-mentioned prior art.
Be to realize above-mentioned purpose, the utility model provides a kind of ring-type to advance glue pre-cutting structure, comprises the upper die and lower die that cooperatively interact and is located at the counterdie internal cutting off towards pin, stop block with push pin.Upper die and lower die surround die cavity during matched moulds, are provided with the runner that is communicated with die cavity in the patrix.Cut-out slidably is limited in the counterdie towards the pin lower end, and the upper end is passed die cavity and stretched in the runner.Stop block is installed in the counterdie, in the stop block that is arranged in the counterdie movable up and down of pushing pin.During work, the pushing and pressing cut-out of pushing pin is upwards slided towards pin and is made the annulus of cut-out towards pin upper end closed runner and die cavity.
In sum, the utility model ring-type was advanced glue pre-cutting structure before molten plastic is uncolled, and upwards sliding towards pin through the pushing and pressing cut-out of pushing pin makes cut-out towards the pin portion closed flow of pin upper end and the annulus of die cavity; Cut off in the runner and being connected of the interior plastics of die cavity; Cut off operation thereby reduced, saved the waste of plastics in the runner simultaneously, simple in structure; Performance is good, practices thrift manufacturing cost.
Description of drawings
Fig. 1 advances the three-dimensional exploded view of the preferred embodiment of glue pre-cutting structure for the utility model ring-type.
Fig. 2 advances the preceding profile of injection moulding of glue pre-cutting structure for ring-type shown in Figure 1.
Fig. 3 advances the profile after the injection moulding of glue pre-cutting structure for ring-type shown in Figure 1.
Fig. 4 advances cut-out before the injection moulding of glue pre-cutting structure towards needle-like attitude partial enlarged drawing for ring-type shown in Figure 2.
Fig. 5 advances cut-out after the injection moulding of glue pre-cutting structure towards needle-like attitude partial enlarged drawing for ring-type shown in Figure 3.
Each description of reference numerals is following among the figure.
Ring-type is advanced glue pre-cutting structure 100
Patrix 10 runners 11
Counterdie 20 chutes 21
Cut-out is towards pin 30 main parts 31
50 die cavities 60 of pushing pin.
The specific embodiment
By the technology contents, the structural feature that specify the utility model, realized purpose and effect, know clearly below in conjunction with embodiment and conjunction with figs. and give explanation.
See also Fig. 1 and Fig. 2, the utility model ring-type is advanced glue pre-cutting structure 100 and is used for the product 200 that moulding has circular hole 201, comprises patrix 10, the counterdie 20 that cooperatively interacts and is located at the inner cut-out of counterdie 20 towards pin 30, stop block 40 and push pin 50.Patrix 10 surrounds die cavity 60 with counterdie 20 during matched moulds, is provided with the runner 11 that is communicated with die cavity in the patrix 10.Cut-out slidably is limited in the counterdie 20 towards pin 30 lower ends, and the upper end is passed die cavity 60 and stretched in the runner 11.In 50 stop blocks 40 that are arranged in the counterdie 20 movable up and down of pushing pin, be used for pushing and pressing and cut off to do and slide up and down towards pin 30.During work, the 50 pushing and pressing cut-outs of pushing pin are upwards slided towards pin 30 and are made cut-out towards the annulus (in figure indicate) of pin 30 upper end closed runners 11 with die cavity 60.
Particularly, counterdie 20 is provided with chute 21, and the lower end of chute 21 is provided with the stopper slot 22 that is communicated with chute 21.Also be provided with the mounting groove 23 that is communicated with stopper slot 22 on the counterdie 20.Said stop block 40 is fixedly installed in the mounting groove 23, is limited in chute 21 and the stopper slot 22 thereby will cut off towards pin 30.Cut-out comprises that towards pin 30 pin portion 32 that main part 31, main part 31 upper ends protrude out and main part 31 lower ends are to extending out the card division 33 of stretching formation.Card division 33 is arranged in the stopper slot 22, and main part 31 is slidedly arranged in the chute 21, and pin portion 32 passes die cavity 60 and stretches in the runner 11.
See also Fig. 2 to Fig. 5; The ring-type that ring-type is advanced glue pre-cutting structure 100 is advanced glue pre-cutting process and is described: during matched moulds; Patrix 10, counterdie 20 cooperatively interact and surround die cavity 60; Pushing pin 50 does not also head in the stopper slot 22, cuts off towards pin 30 to be in lower ends in the stopper slot 22, and pin cuts off towards the said annulus of formation between the pin portion 32 of pin 30 and the runner 11; During injection moulding, molten plastic does not inject in the die cavity 60 through runner 11 and annulus (indicating among the figure).After molten plastic is filled with die cavity 60; Push pin and 50 head into stopper slot 22; Pushing and pressing cut-out is simultaneously upwards slided towards the card division 33 of pin 30 and is made the annulus of cut-out towards pin portion 32 closed flows 11 with the die cavity 60 of pin 30 upper ends, treats to carry out the product 200 that die sinking obtains to have circular hole 201 again after the moulding of fusion plastic cool.
In addition, cut off towards the border, main part 31 outside of pin 30 and be arranged with fluid sealant 310, seal, prevent that downstream from communicating, thereby make molten plastic can down not flow out towards the slit between pin 30 and the counterdie 20 from cutting off.
In sum, the utility model ring-type was advanced glue pre-cutting structure before molten plastic is uncolled, and upwards sliding towards pin 30 through the 50 pushing and pressing cut-outs of pushing pin makes the annulus of cut-out towards pin portion 32 closed flows 11 with the die cavity 60 of pin 30 upper ends; Cut off in the runner 11 and being connected of die cavity 60 interior plastics; Cut off operation thereby reduced, saved the waste of plastics in the runner 11 simultaneously, simple in structure; Performance is good, practices thrift manufacturing cost.
Claims (3)
1. a ring-type is advanced glue pre-cutting structure, the counterdie that comprises patrix, cooperatively interacts with patrix, cuts off towards pin, stop block and pushes pin, and it is characterized in that: be provided with runner in the patrix; Upper die and lower die surround die cavity during matched moulds, and runner is communicated with die cavity; Cut-out is located in the counterdie towards pin, cuts off slidably to be limited in the counterdie towards the pin lower end, and the upper end is passed die cavity and stretched in the runner; Stop block is installed in the counterdie; In the stop block that is arranged in the counterdie movable up and down of pushing pin; During work, the pushing and pressing cut-out of pushing pin is upwards slided towards pin and is made the annulus of cut-out towards pin upper end closed runner and die cavity.
2. ring-type as claimed in claim 1 is advanced glue pre-cutting structure, it is characterized in that: said counterdie is provided with chute, and the lower end of chute is provided with the stopper slot that is communicated with chute, also is provided with the mounting groove that is communicated with stopper slot on the counterdie; Stop block is fixedly installed in the mounting groove; Cut-out comprises that towards pin pin portion that main part, main part upper end protrudes out and main part lower end are to extending out the card division of stretching formation; The card division is arranged in the stopper slot, and main part is slidedly arranged in the chute, and pin portion passes die cavity and stretches in the runner.
3. ring-type as claimed in claim 2 is advanced glue pre-cutting structure, it is characterized in that: said cut-out is arranged with fluid sealant towards the border, the main part outside of pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205022757U CN202388719U (en) | 2011-12-06 | 2011-12-06 | Annular plastic feeding and precutting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205022757U CN202388719U (en) | 2011-12-06 | 2011-12-06 | Annular plastic feeding and precutting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388719U true CN202388719U (en) | 2012-08-22 |
Family
ID=46663669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205022757U Expired - Fee Related CN202388719U (en) | 2011-12-06 | 2011-12-06 | Annular plastic feeding and precutting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388719U (en) |
-
2011
- 2011-12-06 CN CN2011205022757U patent/CN202388719U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103737804A (en) | Precision mould of combined-type carbon powder cartridge main member | |
| CN104369328B (en) | In a kind of mould, automatic shearing diaphragm gate coagulates the injection mold of material | |
| CN102019667B (en) | Automatic cutoff and ejection mechanism for plastic mould gate | |
| CN205767300U (en) | A kind of injection mold cutting off demoulding synchronization | |
| CN205238466U (en) | Automatic blank mechanism in injection moulding mould | |
| CN202239241U (en) | Combined mold | |
| CN202388719U (en) | Annular plastic feeding and precutting structure | |
| CN203496226U (en) | Injection mould for automatic water gap shearing plastic products | |
| CN217803038U (en) | Automatic cut mouth of a river plastic goods injection mold | |
| CN201609948U (en) | Automatic material-cutting and ejecting mechanism of plastic die gating | |
| CN206264265U (en) | Fervent, hot pressing mechanism in injection mold mould | |
| CN205033486U (en) | Medicine bottle lid injection mold | |
| CN207388215U (en) | Plastic mold automatic shearing edge glue mouth mechanism | |
| CN211389977U (en) | Automobile connector product forming die | |
| CN108973023B (en) | Injection mold | |
| CN209832441U (en) | Prevent injection mold of starved adhesive | |
| CN208146780U (en) | A kind of composable mold manufacturing threeway | |
| CN203092947U (en) | Plastic feeding structure of mold | |
| CN203371737U (en) | Thermal-insulation hot runner injection mold | |
| CN202097902U (en) | Injection mold | |
| CN207120428U (en) | A kind of reverse buckle demolding mechanism | |
| CN207256729U (en) | It is a kind of that there is the injection mold for cutting runner mechanism automatically | |
| CN105128278A (en) | Medicine bottle cap injection mold | |
| CN211591104U (en) | Mold opening tool with cooling effect | |
| CN203509036U (en) | Sprue self-cutting structure for mold formed in metal powder injection mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20141206 |
|
| EXPY | Termination of patent right or utility model |