CN2396951Y - Integrated injection moulding die core (2) of plastic pipe with flexible mouthpiece - Google Patents
Integrated injection moulding die core (2) of plastic pipe with flexible mouthpiece Download PDFInfo
- Publication number
- CN2396951Y CN2396951Y CN 99230115 CN99230115U CN2396951Y CN 2396951 Y CN2396951 Y CN 2396951Y CN 99230115 CN99230115 CN 99230115 CN 99230115 U CN99230115 U CN 99230115U CN 2396951 Y CN2396951 Y CN 2396951Y
- Authority
- CN
- China
- Prior art keywords
- core
- short time
- mandrel
- oil cylinder
- small
- 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
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to an integrated injection moulding die core of a plastic pipe fitting with a flexible mouthpiece, which comprises a sleeve barrel 10, a core shaft 7 inserted into the sleeve barrel 10, a core lug assembly sheathed on the core shaft 7, a small insert seat 6, a connecting flange 8, a large insert seat 5, a flange 12, a hollow connecting rod 9 connected with the flange, a small air cylinder 14, a connecting plate 13 of an oil cylinder, and an oil cylinder 15. An annular bulge 1 is manufactured at the front end of the core lug assembly which is composed of a plurality of large inserts 4 and small inserts 3, wherein, the large inserts and the small inserts are uniformly distributed at intervals in the radial direction. The back ends of the large inserts and the small inserts are connected with the large insert seat and the small insert seat respectively through positioning pins 18, 19. The core has the advantages of simple moulding and good product quality.
Description
The utility model relates to a kind of flexible interface plastic pipe integral molded plastic mould core.The single injection-molded that is used for plastic pipe bellmouth inner groovy (can be square and circular arc type).
Existing plastic pipe bellmouth inner groovy, general what adopt is secondary thermoforming enlarging or first injection moulding after the technology of turning processing inner groovy, the pipe fitting that this technology is made, its bellmouth inner groovy moulding degree is undesirable, poor sealing performance, and waste of material is big, plastic part quality is poor, and production efficiency is low.
The flexible interface plastic pipe mould core that provides a kind of pipe fitting bellmouth inner groovy moulding degree good is provided the purpose of this utility model.
The purpose of this utility model is achieved in that a kind of flexible interface plastic pipe integral molded plastic mould core, comprises sleeve, mandrel, core projection assembly, the large and small seat of inserting, connecting flange, ring flange, cored screw, little cylinder, oil cylinder and oil cylinder connecting plate.Described mandrel is inserted in the sleeve, the core projection assembly and the cover for seat of inserting for a short time are contained on the mandrel, connecting flange is packed in core back-end, the seat of inserting greatly, before ring flange is packed in sleeve, back two ends, cored screw one end is inserted on the ring flange, the other end is packed on the connecting flange, the small cylinder piston bar is inserted in the cored screw, oil cylinder links to each other with cored screw by the oil cylinder gusset piece, core projection assembly front end outside wall surface is provided with annular protrusion, annular protrusion is corresponding with mould external mold inner groovy, and the core assembly is inserted by a plurality of radially alternate uniform sizes and formed, and the rear end of inserting greatly is connected with a long draw, and by alignment pin with insert greatly the seat link to each other, the long draw back-end device has a block, and the rear end of inserting for a short time links to each other with the seat of inserting for a short time by alignment pin, and the front end inboard of inserting for a short time links to each other with mandrel by connecting rod.
The large and small flare up of inserting protrudes shape before the injection moulding, and large and small inserting shunk its projection in core, to realize going out out of whole core when die sinking was finished in injection moulding.Large and small opening and shrink by reciprocating motion of the pistons of inserting realizes that piston is then by hydraulic-driven.When opening large and small inserting, the state of throw-out collar and the large and small whole inner cavity of inserting reaches when integrated, this-the locking bearing capacity of inserting is very high.
Compare with existing pipe fitting bellmouth inner groovy forming technique, but adopt this mold cores single injection-molded, bellmouth inner groovy moulding degree is good, and good seal performance saves material, and plastic part quality is good.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model being done one describes in detail:
As described in Figure 1, a kind of flexible interface plastic pipe integral molded plastic mould core.It comprises: sleeve 10, mandrel 7, core projection assembly, insert seat 6, insert seat 5, connecting flange 8, ring flange 12, cored screw 9, stingy cylinder 14 (3), oil cylinder 15 and oil cylinder connecting plate 13 greatly for a short time.Mandrel 7 is inserted in the sleeve 10, core projection assembly, for a short time the seat 6 of inserting is sleeved on the mandrel 7, connecting flange 8 is packed in mandrel 7 rear ends, insert greatly the seat 5, before ring flange 12 is packed in sleeve 10, back two ends, cored screw 9 one ends are inserted on the ring flange 12, the other end is packed on the connecting flange 8, stingy cylinder 14 places cored screw 9 one ends, its piston rod 16 is inserted in the cored screw 9, oil cylinder 15 links to each other with cored screw 9 by oil cylinder gusset piece 13, core projection assembly front end outside wall surface is provided with the annular protrusion 1 corresponding with mould external mold inner groovy, core projection assembly is by a plurality of radially alternate uniform big, for a short time insert 4,3 form, 4 rear ends of inserting greatly are connected with a long draw 11, and 5 link to each other with the seat of inserting greatly by alignment pin 18, long draw 11 back-end device have block 17, and 3 rear ends of inserting for a short time link to each other with the seat 6 of inserting for a short time by alignment pin 19, and 3 front ends of inserting for a short time are inboard to link to each other with mandrel 7 by connecting rod 2.
Operation principle:
During core closure (large and small inserting propped up), withstand the seat 6 of inserting for a short time by small cylinder piston bar 16 earlier, oil cylinder 15 promotes oil cylinder connecting plates 13 and inserts for a short time by cored screw 9, connecting flange 8, mandrel 7 and 3 move forward then, small cylinder piston bar 16 retreats, insert greatly and 4 outwards prop up around alignment pin 18 under the effect of mandrel 7 this moment, when amount of movement is L
1+ L
2+ L
3The time, insert 4 greatly, inserting for a short time 3 puts in place, prop up and change subsequent processing over to after being unified into an integral body.
When 2, core draws (being the large and small gathering of inserting) in, move backward by oil cylinder 15, by moving L behind oil cylinder connecting plate 13, cored screw 9, connecting flange 8, the mandrel 7
1Distance, insert for a short time and 3 turn over certain angle around alignment pin 19 under the drive of connecting rod 2 this moment, and 4 the cylindrical inserted greatly this moment is by d
2Narrow down to less than d
1Circumscribed circle diameter, continue to move backward, whole core can be extracted out from product.
This is a working cycles of this bellmouth core.
Claims (1)
1, a kind of flexible interface plastic pipe integral molded plastic mould core (two), it is characterized in that it comprises: sleeve (10), mandrel (7), core projection assembly, for a short time insert (6), insert greatly (5), connecting flange (8), ring flange (12), cored screw (9), little cylinder (14), oil cylinder (15) and oil cylinder connecting plate (13), mandrel (7) is inserted in the sleeve (10), core projection assembly, for a short time the seat (6) of inserting is sleeved on the mandrel (7), connecting flange (8) is packed in mandrel (7) rear end, insert greatly (5), it is preceding that ring flange (12) is packed in sleeve (10), back two ends, cored screw (9) one ends are inserted on the ring flange (12), the other end is packed on the connecting flange (8), little cylinder (14) piston rod (16) is inserted in the cored screw (9), oil cylinder (15) links to each other with cored screw (9) by oil cylinder gusset piece (13), core projection assembly front end outside wall surface is provided with the annular protrusion (1) corresponding with mould external mold inner groovy, core projection assembly is by a plurality of radially alternate uniform big, for a short time insert (4), (3) form, (4) rear end of inserting greatly is connected with a long draw (11), and by alignment pin (18) with insert greatly the seat (5) link to each other, long draw (11) back-end device has block (17), for a short time (3) rear end of inserting links to each other with the seat (6) of inserting for a short time by alignment pin (19), and the inboard connecting rod (2) that passes through of (3) front end of inserting for a short time links to each other with mandrel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230115 CN2396951Y (en) | 1999-11-27 | 1999-11-27 | Integrated injection moulding die core (2) of plastic pipe with flexible mouthpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230115 CN2396951Y (en) | 1999-11-27 | 1999-11-27 | Integrated injection moulding die core (2) of plastic pipe with flexible mouthpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396951Y true CN2396951Y (en) | 2000-09-20 |
Family
ID=34019259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99230115 Expired - Lifetime CN2396951Y (en) | 1999-11-27 | 1999-11-27 | Integrated injection moulding die core (2) of plastic pipe with flexible mouthpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2396951Y (en) |
-
1999
- 1999-11-27 CN CN 99230115 patent/CN2396951Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |