Mold assembly for forming protrusions on base field of the invention
a mold assembly and base technology, applied in the field of mold assembly for forming protrusions on the base, can solve the problems of difficult to remove products from the mold assembly, difficult to absorb the magnetic force and heavy metal material and the huge permanent magnet,
Inactive Publication Date: 2009-06-25
KWAN CHIEN
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention is about a mold assembly that has a bottom mold with concavities and a top mold with a recess that fits snugly with the bottom mold. The length of the recess is slightly less than the length of the bottom mold. The top mold has through holes that match the concavities and allow the forming material to fill them. The invention aims to provide a mold assembly that does not use magnetic force to match the top and bottom molds and ensures a snug match between them to minimize surplus.
Problems solved by technology
Both of the top and the bottom molds have to be made by heavy metal material so as to be sucked by the magnetic force and the heavy metal material and the huge permanent magnet are costly.
If the molds assembly is made to be thinner and a less powerful of the magnet is used, the shapes of the concavities are limited within the thin molds.
Besides, the products are difficult to be removed from the mold assembly.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018]Referring to FIGS. 1, 2, 2A and 2B, the mold assembly 1 of the present invention comprises a bottom mold 10 which includes a base 11 and a mold body 12 extends from a top of the base 11. A plurality of concavities 13 are defined in a top of the mold body 12. Each of the concavities 13 includes a U-shaped inner end. A first guide inclined surface “C” is defined along an edge of each top side of the mold body 12.
[0019]A top mold 20 includes a recess 21 which is defined by a skirt portion 202 extending from an underside of the top mold 20. A plurality of through holes 22 are defined through the top mold 20 and located corresponding to the concavities 13. The skirt portion 202 is a rectangular part on each of sides of the top mold 20 and a second guide inclined surface “C1” is defined along an edge of an inside edge of the skirt portion 202. The length “t” of the recess 21 between two insides is slightly less than a length “T” of the mold body 12 of the bottom mold 10 so that the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| magnetic force | aaaaa | aaaaa |
| shapes | aaaaa | aaaaa |
Login to View More
Abstract
A mold assembly includes a bottom mold having a plurality of concavities defined therein and a top mold which includes a recess defined in an underside thereof so that the bottom mold is engaged with the recess. The length of the recess between two insides is less than a length of the bottom mold so that the bottom mold is snugly engaged with the recess by proper scalability of the metal material of the top and bottom molds. A plurality of through holes are defined through the top mold and located corresponding to the concavities. Forming material is pouted into the concavities via the through holes.
Description
BACKGROUND OF THE INVENTION[0001](1) Field of the Invention[0002]The present invention relates to a mold assembly for forming protrusions on a base and includes a top mold and a bottom mold which is easily and precisely matched to the top mold.[0003](2) Description of the Prior Art[0004]A conventional method form making outsole for shoes generally uses two molds between which concavities are defined and forming material is poured into the concavities, a base material is then connected to the forming material in the concavities so as to form an outsole made by the base material with protrusions made by the forming material on the outsole. In order to reduce surplus on the outsole, the mold assembly includes a top mold and a bottom mold which is matched with the top mold. The smaller the gap between the two molds, the less the surplus is produced. An electro-magnetic clamp is used to firmly connect the top and bottom molds to reduce the gap, or a permanent magnet is used to suck the t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): B22C9/20
CPCB29D35/148B29D35/142
Inventor WU, CHI-KUNG
Owner KWAN CHIEN