GB1348276A - Hot runner structure for plastics injection moulds - Google Patents
Hot runner structure for plastics injection mouldsInfo
- Publication number
- GB1348276A GB1348276A GB1348276DA GB1348276A GB 1348276 A GB1348276 A GB 1348276A GB 1348276D A GB1348276D A GB 1348276DA GB 1348276 A GB1348276 A GB 1348276A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insert member
- runner
- gate
- bore
- flow control
- 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
Links
Classifications
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
- B29C45/2711—Gate inserts
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/278—Nozzle tips
- B29C2045/2783—Nozzle tips with a non-axial outlet opening of the melt channel
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2796—Axially movable nozzles or nozzle tips
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1348276 Injection mould hot runner L W PUTKOWSKI 19 April 1971 [9 March 1970] 23405/71 Heading B5A [Also in Division H5] A hot runner assembly for an injection mould has in the outlet of its bore a cylindrical insert member which co-operates with the gate. The insert member is slidable in the bore to allow axial expansion and contraction movement of the outlet end of the runner. In the first embodiment, Fig. 3, the flow control insert member 48<SP>1</SP> is connected by pins 84 to an actuating piston 72, 78. The pins 84 pass through holes in the runner 30 and escape of plastics through these holes indicates wear of the parts. In a second embodiment, Fig. 5, the flow control insert member 4811 is biased to a gate closing position by springs 96. The pressure of the plastics in chamber 50a builds up to overcome the springs 96 and move the tip 108 of the insert member away from the gate 26<SP>11</SP>. In another embodiment, Fig. 13, the gate 202 is in the flow control insert member 194 which is loaded by a spring 206. The gate 202 is off centre to allow regulation of flow by rotation of the member 194. A torpedo may be located in the bore of the insert member 194. The inlet and/or outlet end of the runner has a seal where it enters a bore and the seal may, as shown in Fig. 10, comprise a sleeve 132 of flexible stainless steel located, e.g. by silver soldering on the reduced diameter end of the runner, the diameter of the sleeve being enlarged at 140. The runner may be L-shaped or comprise two tubular members formed at rightangles. The heaters may be semicircular and arranged in pairs one of which may not be connected to supply or may be a dummy to act as an insulator. A heater may comprise four arcuate parts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA076781A CA928468A (en) | 1970-03-09 | 1970-03-09 | Hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1348276A true GB1348276A (en) | 1974-03-13 |
Family
ID=4086438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1348276D Expired GB1348276A (en) | 1970-03-09 | 1971-04-19 | Hot runner structure for plastics injection moulds |
Country Status (2)
| Country | Link |
|---|---|
| CA (2) | CA928468A (en) |
| GB (1) | GB1348276A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016702A1 (en) * | 1979-05-07 | 1980-11-20 | Nipki Tech Material | DEVICE FOR POINT-FREE CASTING UNDER PRESSURE OF POLYMER PRODUCTS |
| WO2005018906A1 (en) * | 2003-08-13 | 2005-03-03 | Günther Heisskanaltechnik Gmbh | Injection molding nozzle |
| DE102012219251B4 (en) * | 2012-10-22 | 2017-11-30 | Hans Schreck | Hot runner nozzle and hot runner injection molding device |
-
1970
- 1970-03-09 CA CA076781A patent/CA928468A/en not_active Expired
-
1971
- 1971-04-19 GB GB1348276D patent/GB1348276A/en not_active Expired
-
1972
- 1972-05-03 CA CA141166A patent/CA928469A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016702A1 (en) * | 1979-05-07 | 1980-11-20 | Nipki Tech Material | DEVICE FOR POINT-FREE CASTING UNDER PRESSURE OF POLYMER PRODUCTS |
| WO2005018906A1 (en) * | 2003-08-13 | 2005-03-03 | Günther Heisskanaltechnik Gmbh | Injection molding nozzle |
| EP2133189A3 (en) * | 2003-08-13 | 2010-08-25 | Günther Heisskanaltechnik GmbH | Injection molding nozzle |
| US7841855B2 (en) | 2003-08-13 | 2010-11-30 | Gunther Heisskanaltechnik Gmbh | Injection molding nozzle |
| DE102012219251B4 (en) * | 2012-10-22 | 2017-11-30 | Hans Schreck | Hot runner nozzle and hot runner injection molding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA928468A (en) | 1973-06-19 |
| CA928469A (en) | 1973-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |