US3877861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blow moulding machine with cam controlled reciprocating carriage
Assignee: KAUTEX WERKE GmbH
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Filing: 1973-01-30
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Granted: 1975-04-15
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Expires: 1993-01-30
Abstract
Abstract A blow moulding apparatus including two mould halves 14a, 14b movable between a first station where a preform is clamped within the mould halves as they are brought together, and a second station where the mould is opened after a compressed air nozzle 16 has been lowered into the closed mould to expand the preform. The mould movements are controlled through a scissors linkage by reciprocating carriage members, which in turn are controlled by cam rollers riding in tracks on a rotating drum.
Inventors
- 👤 Erich Kiefer
- 👤 Peter Klusener
- 👤 Dieter Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:21
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/28; B29C49/30; B29C49/32; B29C49/02; B29C49/04; B29C49/04102; B29C49/42; B29C49/56; B29C49/5601; B29C49/5602; B29C33/00; B29C33/20; B29C33/26; B29L; B29L2031/00; B29L2031/712; B29L2031/7158
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
211 words
In an apparatus for blow moulding hollow bodies, in particular bottles, containers or the like from thermoplastic synthetic material, having a two piece hollow sectional mould movable between an open and closed position, a first station wherein the synthetic material is extruded into the closed mould and a second station laterally adjacent to said first station wherein the synthetic material is released from the open mould after means for expanding the synthetic material has been brought into contact with the closed mold, the improved means to open and close said mould and to move said mould between said first and second stations comprising: a. reciprocating carriage slidingly affixed to a stationary base structure, b. mechanical linkage means attaching each mould piece to said reciprocating carriage such that the mould is movable between an open and closed position, c. means attached to said mechanical linkage to move said mould between said open and closed positions, d. means to move said reciprocating carriage linearly between said first and second stations comprising a drive roller having a cam surface about its periphery, said cam surface being engaged by a follower attached to said carriage such that rotation of said drive roller causes said carriage to reciprocate, and e. means to rotate said drive roller.
Claim 2
Dependent Claim
211 words
In an apparatus for blow moulding hollow bodies, in particular bottles, containers or the like from thermoplastic synthetic material, having a two piece hollow sectional mould movable between an open and closed position, a first station wherein the synthetic material is extruded into the closed mould and a second station laterally adjacent to said first station wherein the synthetic material is released from the open mould after means for expanding the synthetic material has been brought into contact with the closed mold, the improved means to open and close said mould and to move said mould between said first and second stations comprising: a. reciprocating carriage slidingly affixed to a stationary base structure, b. mechanical linkage means attaching each mould piece to said reciprocating carriage such that the mould is movable between an open and closed position, c. means attached to said mechanical linkage to move said mould between said open and closed positions, d. means to move said reciprocating carriage linearly between said first and second stations comprising a drive roller having a cam surface about its periphery, said cam surface being engaged by a follower attached to said carriage such that rotation of said drive roller causes said carriage to reciprocate, and e. means to rotate said drive roller.
Claim 3
Dependent Claim
91 words
The improved blow moulding apparatus of claim 1 wherein each mould section is mechanically attached by a first link (21) which is pivotably attached to said carriage at approximately its mid point, one end of said first link being pivotably attached to a mould section, the other end of each of said first link being pivotably attached to one end of a pair of second links, (23), the other ends of said second links being pivotably attached to a pin which engages the means for opening and closing said mould sections.
Claim 4
Dependent Claim
58 words
The improved blow moulding apparatus of claim 2 wherein the drive roller has a second cam surface about its periphery which engages a member attached to said pin connecting said ends of the second links such that rotation of said drive roller causes the opening and closing of said mould sections as well as reciprocation of said carriage.
Claim 5
Dependent Claim
39 words
The improved blow moulding apparatus of claim 3 wherein said member attached to said pin is slidingly attached to a plurality of guide members rigidly affixed to said carriage such that said member may move relative to said carriage.
Claim 6
Dependent Claim
55 words
The improved blow moulding apparatus of claim 4 wherein said guide members are affixed to the underside of said carriage, said first links are attached to the top side of said carriage and said pin connecting said second links with said member slindingly attached to said guide rails passes through a slot in said carriage.
Claim 7
Dependent Claim
26 words
The improved blow moulding apparatus of claim 4 wherein the longitudinal axes of said guide members are parallel to the direction of movement of said carriage.
Claim 8
Dependent Claim
21 words
The improved blow moulding apparatus of claim 6 wherein said projection engaging said cam surface is attached to said guide members.
Claim 9
Dependent Claim
29 words
The improved blow moulding apparatus of claim 1 wherein said carriage is slidingly attached to a plurality of spaced, parallel support beams rigidly affixed to a stationary base structure.
Claim 10
Dependent Claim
29 words
The iMproved blow moulding apparatus of claim 8 wherein said support beams also support apparatus to release said synthetic material from said open mould used in said second station.
Claim 11
Dependent Claim
28 words
The improved blow moulding apparatus of claim 1 wherein said mould sections are moved past said second station during the opening or closing movement of the mould sections.
Claim 12
Dependent Claim
27 words
The improved blow moulding apparatus of claim 1 wherein the rotation of said drive roller controls the operation of the apparatus at the first and second stations.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |