GB1392517A - Moulding casting and like machines - Google Patents
Moulding casting and like machinesInfo
- Publication number
- GB1392517A GB1392517A GB3596672A GB3596672A GB1392517A GB 1392517 A GB1392517 A GB 1392517A GB 3596672 A GB3596672 A GB 3596672A GB 3596672 A GB3596672 A GB 3596672A GB 1392517 A GB1392517 A GB 1392517A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- platen
- clamping
- tie
- ram
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
- B29C45/6714—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement using a separate element transmitting the mould clamping force from the clamping cylinder to the mould
-
- 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
- B29C45/1751—Adjustment means allowing the use of moulds of different thicknesses
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
1392517 Mould clamping unit LITTON INDUSTRIES Inc 1 Aug 1972 [2 Aug 1971] 35966/72 Heading B5A A clamping unit for an injection or casting mould comprises fixed and movable platens 14, 18 supporting mould halves 10, 12 and interconnected by tie bars 20, and a clamping structure 22 connected to the movable platen 18 by a mechanism, e.g. ram 17 for displacing the platen to close the mould and slidably connected to the tie rods 20 by a piston and cylinder unit 28 for applying full clamping pressure to the platens, the piston 26 of each unit being in the form of a nut threaded on to a tie bar and rotatable for displacement of the clamping structure along the tie bars separately to and through a greater distance than the displacement by operation of the cylinder and piston units. Two guide bars 50, 52 are fixed to the movable platen 18 and slide through the clamping structure 22 as the ram 47 closes the mould. The platen is prevented from moving back by inserting blocking elements 53 (Fig. 7, not shown) in slots in clamping device 22 in the path of the guide bars 50, 52 or by gripping the guide bars by pairs of pivoted arms 80, 82 mounted on the clamping member and closed by a ram-operated toggle, Fig. 6, ram-operated cams (Fig. 5) or motor-driven double threaded screw (Fig. 4). The closed mould is clamped by fluid being fed to the R.H. chamber of each cylinder 28 to displace the clamping member and thereby the platen 18 with respect to the pistons 32 which are screwed on to the ends of tie bars 20. The pistons 20 are rotatable in unison by a chain 45 engaging sprockets 42 to adjust their position along the tie bars to accommodate different mould sizes. An ejector plate 94 is mounted on guide bars 50, 52 and carries ejector pins which enter mould half 12 on mould opening. The stationary platen may be positioned between the clamping structure and the fixed platen, the mould being clamped by tension applied to tie rods extending through the fixed platen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16804271A | 1971-08-02 | 1971-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1392517A true GB1392517A (en) | 1975-04-30 |
Family
ID=22609852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3596672A Expired GB1392517A (en) | 1971-08-02 | 1972-08-01 | Moulding casting and like machines |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2235758C3 (en) |
| GB (1) | GB1392517A (en) |
| IT (1) | IT961785B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433480A (en) * | 2017-09-13 | 2017-12-05 | 永康市嘉宏工具制造有限公司 | The clamp system and milling drum of milling drum |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3736634A1 (en) * | 1987-10-29 | 1989-05-18 | Wefoba Gmbh Werkzeug Formenbau | CENTERING DEVICE FOR AN INJECTION MOLDING TOOL |
| DE3920690A1 (en) * | 1989-06-21 | 1991-01-10 | Mannesmann Ag | COLUMN DRAWING DEVICE FOR INJECTION MOLDING MACHINES |
| DE10122260B4 (en) * | 2001-05-08 | 2004-03-18 | Mannesmann Plastics Machinery Gmbh | Linear drive device for opening and closing molds and applying a closing force thereon |
| CN115157137B (en) * | 2022-06-15 | 2024-02-20 | 上海肇民新材料科技股份有限公司 | Auxiliary device for processing injection mold |
-
1972
- 1972-07-21 DE DE19722235758 patent/DE2235758C3/en not_active Expired
- 1972-07-31 IT IT5188372A patent/IT961785B/en active
- 1972-08-01 GB GB3596672A patent/GB1392517A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433480A (en) * | 2017-09-13 | 2017-12-05 | 永康市嘉宏工具制造有限公司 | The clamp system and milling drum of milling drum |
| CN107433480B (en) * | 2017-09-13 | 2023-08-04 | 浙江嘉宏工具制造有限公司 | Clamping mechanism of grinding machine and grinding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| IT961785B (en) | 1973-12-10 |
| DE2235758B2 (en) | 1977-08-25 |
| DE2235758C3 (en) | 1978-04-27 |
| DE2235758A1 (en) | 1973-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |