CS274631B2 - Method of hollow articles forming from thermoplastic material and device for realization of this method - Google Patents
Method of hollow articles forming from thermoplastic material and device for realization of this methodInfo
- Publication number
- CS274631B2 CS274631B2 CS614688A CS614688A CS274631B2 CS 274631 B2 CS274631 B2 CS 274631B2 CS 614688 A CS614688 A CS 614688A CS 614688 A CS614688 A CS 614688A CS 274631 B2 CS274631 B2 CS 274631B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- belt
- melt
- conveyor
- forming
- temperature
- Prior art date
Links
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The melt belt of thermoplastic mass is transferred from the ejector via heating cylinders through the belt conveyor to the device for forming hollow objects, e.g. crucibles, cups and other vessels, especially for food-industry purposes. In order to prevent the melt belt from clinging to the conveyor belt, one cools down in a controlled manner such a layer of the melt that is in contact with the conveyor belt. The forming temperature is achieved by spontaneous heat transfer from the middle part of the cross section of the melt belt into the surface part before entry of the belt of the plastic mass into the forming device. The relative positions of the heating cylinders (2, 3, 4) of the conveyor (10) and the length of the transport path of the conveyor (10), which is in contact with the melt belt (11) are adjustable, which results in controllability of the temperature of the surface of the melt belt (11), which is in contact with the conveyor (10). The melt belt (11) thus enters into the warm-forming device cooled down to the forming temperature, which is lower than the temperature that would result into clinging of the melt belt to the conveyor belt (10).<IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS614688A CS274631B2 (en) | 1988-09-14 | 1988-09-14 | Method of hollow articles forming from thermoplastic material and device for realization of this method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS614688A CS274631B2 (en) | 1988-09-14 | 1988-09-14 | Method of hollow articles forming from thermoplastic material and device for realization of this method |
Publications (2)
Publication Number | Publication Date |
---|---|
CS614688A2 CS614688A2 (en) | 1990-11-14 |
CS274631B2 true CS274631B2 (en) | 1991-09-15 |
Family
ID=5407834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS614688A CS274631B2 (en) | 1988-09-14 | 1988-09-14 | Method of hollow articles forming from thermoplastic material and device for realization of this method |
Country Status (1)
Country | Link |
---|---|
CS (1) | CS274631B2 (en) |
-
1988
- 1988-09-14 CS CS614688A patent/CS274631B2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CS614688A2 (en) | 1990-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
IF00 | In force as of 2000-06-30 in czech republic | ||
MM4A | Patent lapsed due to non-payment of fee |
Effective date: 20060914 |