US3841823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die carrier guiding device for injection molding machine
Assignee: Individual
•
Filing: 1972-07-26
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Granted: 1974-10-15
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Expires: 1992-07-26
Abstract
Abstract A die carrier guiding device for injection molding machine whose movable die carrier is independently guided on a rigid cantilever-type guide frame by means of axially adjustable flanged guide rollers engaging spaced guide profiles on horizontal and vertical guide surfaces.
Inventors
- 👤 K Hehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:30
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/1761
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
228 words
In an injection molding machine in which a rigid machine frame supports, among other machine components, a stationary die carrier fixedly mounted on the frame, a movable die carrier arranged for reciprocating opening and closing movements along a central die axis in cooperation with the stationary die carrier, and a die actuating unit connected to both die carriers and imparting to them said reciprocating movements, the combination therewith of a die carrier guiding device comprising: a rigid guide frame mounted to the machine in a solidary relationship with respect to the stationary die carrier and extending in the direction of the movable die carrier; first guide faces on said guide frame defining a primary guide plane which is parallel to the die axis; second oppositely facing guide faces on said guide frame defining two parallel secondary guide planes which are also parallel to the die axis and perpendicular to said primary guide plane; first guide means connected to the movable die carrier and engaging said first guide faces for supportive guidance of the movable die carrier thereagainst; second guide means connected to the movable die carrier and engaging said second guide faces for clearance-free, nonyielding guidance of the movable die carrier thereagainst; and means for transversely fine-adjusting the distance between the second guide means and the second guide faces so as to create a predetermined preload condition therebetween.
Claim 2
Dependent Claim
228 words
In an injection molding machine in which a rigid machine frame supports, among other machine components, a stationary die carrier fixedly mounted on the frame, a movable die carrier arranged for reciprocating opening and closing movements along a central die axis in cooperation with the stationary die carrier, and a die actuating unit connected to both die carriers and imparting to them said reciprocating movements, the combination therewith of a die carrier guiding device comprising: a rigid guide frame mounted to the machine in a solidary relationship with respect to the stationary die carrier and extending in the direction of the movable die carrier; first guide faces on said guide frame defining a primary guide plane which is parallel to the die axis; second oppositely facing guide faces on said guide frame defining two parallel secondary guide planes which are also parallel to the die axis and perpendicular to said primary guide plane; first guide means connected to the movable die carrier and engaging said first guide faces for supportive guidance of the movable die carrier thereagainst; second guide means connected to the movable die carrier and engaging said second guide faces for clearance-free, nonyielding guidance of the movable die carrier thereagainst; and means for transversely fine-adjusting the distance between the second guide means and the second guide faces so as to create a predetermined preload condition therebetween.
Claim 3
Dependent Claim
57 words
A die carrier guiding device as defined in claim 1, wherein: the guide frame includes two parallel, spaced guide profiles fixedly mounted to it, said first and second guide faces being defined by the two guide profiles; and the fine-adjusting means includes means for repositioning at least one of the two guide profiles relative to the other.
Claim 4
Dependent Claim
30 words
A die carrier guiding device as defined in claim 1, wherein: the fine-adjusting means includes threaded spindle means for repositioning the second guide means relative to the second guide faces.
Claim 5
Dependent Claim
43 words
A die carrier guiding device as defined in claim 1, wherein: the first and second guide means comprise a plurality of guide rollers which are journalled on the movable die carrier, the rollers having rolling surfaces engaging said first and second guide faces.
Claim 6
Dependent Claim
78 words
A die carrier guiding device as defined in claim 1, wherein: the first and second guide means comprise two guide rollers which are journalled on the movable die carrier; and each guide roller has a hub and an upstanding flange, the hub having a peripheral surface defining said first guide means engaging one of said first guide faces, and the flange having an axial shoulder surface defining said second guide means engaging one of said second guide faces.
Claim 7
Dependent Claim
56 words
A die carrier guiding device as defined in claim 5, wherein: the two flanged guide rollers have their rotational axis aligned in a plane which is parallel to said primary guide plane; the peripheral surfaces of the roller hubs are generally cylindrical surfaces; and the axial shoulder surfaces of the roller flanges are generally planar surfaces.
Claim 8
Dependent Claim
42 words
A die carrier guiding device as defined in claim 5, wherein: the journal connection between the guide rollers and the movable die carrier includes anti-friction bearings for the transmission of radial loads and axial loads between said rollers and said die carrier.
Claim 9
Dependent Claim
107 words
A die carrier guiding device as defined in claim 7, wherein: the first and second guide faces are defined by perpendicularly adjacent precision ground faces of two parallel, spaced guide profiles mounted on the guide frame, with said second guide faces located on the inside of the profiles so as to face toward one another; and the journal connection, in conjunction with the fine-adjusting means further includes, for each of the two flanged guiDe rollers: a bearing pin, a male threaded portion on the pin, a cooperating female threaded member defined by the movable die carrier, and means for securing any adjustment position on said threaded parts.
Claim 10
Dependent Claim
115 words
A die carrier guiding device as defined in claim 8, wherein: said journal connection and fine-adjusting means further include, for each guide roller: an inner bracket and an outer bracket on the movable die carrier accommodating the guide roller between them; a bore extending transversely across the two brackets; a cylindrical shoulder arranged on the inside end of the bearing pin and received within the bore portion in the inner bracket; said female threaded member being a stationary nut received within the bore portion in the outer bracket; and said adjustment position securing means is a clamping plug which radially engages the bearing pin through a radial bore in a wall portion of said nut.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |