Many aspects of the molding apparatus can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present molding apparatus. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Embodiments of the present molding apparatus will now be described in detail below and with reference to the drawings.
Referring to
The first mold core 10 includes a molding portion 102, preferably, the first mold core 10 further includes a base portion 108 on one end of the molding portion 102. The molding portion 102 has a molding surface 104 on the other end thereof. The first mold core receiving member 14 can be members such as a sleeve, and is mounted compactly on an outer wall of the molding portion 102. Preferably, a supporting plate 106 is disposed between the base portion 108 and the first mold core receiving member 14, so a height of the first mold core receiving member 14 relative to the base portion 108 can be adjusted.
The second mold core 12 includes a molding portion 122, preferably, the second mold core 10 further includes a base portion 128 on one end of the molding portion 122. The molding portion 122 has a molding surface 124 shaped on the other end thereof.
The second mold core receiving member 16 can be members such as a sleeve, the second mold core receiving member 16 defines a through hole 161 for receiving the molding portion 122, at least three spaced receptacles 162 in an inner wall of the through hole 161, and at least three spaced receiving holes 164 defined with one through each of the receptacles 162. A main axis of each of the receptacles 162 is oriented perpendicular to the main axis of the first mold core receiving member 14 and the second mold core receiving member 16, and a main axis of each of the receiving holes 164 is defined parallel to the main axis of the first mold core receiving member 14 and the second mold core receiving member 16. The positioning members 18 may be members such as steel ball-bearings, and are received in each of the receptacles 162 respectively. Preferably, a wear resistant film (not shown) such as diamond film can be formed on surfaces of the positioning members 18. The pushing members 19 may be members such as elongated pins, and are defined with one lengthwise movably received in each of the receiving holes 164 and can apply pushing forces to the positioning members 18 respectively. Preferably, an elastic member 182 such as spring is mounted in each of the receptacles 162 and is configured for pulling each of the positioning members 18 when the pushing members 19 do not apply pushing forces to the positioning members 18. An inside size of the second mold core receiving member 16 is larger than an outside size of the molding portion 122 of second mold core 12, thus the second mold core 12 can move easily (without friction) when in an assembly with the first mold core 10 or in a disassembly from the first mold core 10.
Referring to
When the workpiece is finally formed, the second mold core 12 moves away from the first mold core 10, so that the pushing members 19 do not apply force to the positioning members 18, and the positioning members 18 are pulled into the receptacles 162 by action of the elastic members 182.
Referring to
It is understood that the first mold core receiving member and the second mold core receiving member illustrated in the above-described embodiments can be integrally formed together.
It is understood that the above-described embodiment are intended to illustrate rather than limit the invention. Variations may be made to the embodiments and methods without departing from the spirit of the invention. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the invention.
Number | Date | Country | Kind |
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200610062134.1 | Aug 2006 | CN | national |
This application is related to commonly-assigned co-pending applications entitled, “MOLD FOR FORMING OPTICAL LENS AND METHOD FOR MANUFACTURING SUCH MOLD”, filed on Mar 8, 2006 (U.S. application Ser. No. 11/308128), “METHOD FOR MANUFACTURING A MOLD CORE”, filed on Jun. 28, 2006 (U.S. application Ser. No. 11/478414), “MOLD AND MOLD RELEASING METHOD OF THE SAME”, filed on Jul. 17, 2006 (U.S. application Ser. No. 11/458079), “MOLD FOR FORMING WORKPIECE”, filed on Oct. 13, 2006 (U.S. application Ser. No. 11/309859), and “MOLDING ASSEMBLY”, filed on Nov. 8, 2006 (U.S. application Ser. No. 11/557900). Disclosures of the above identified applications are incorporated herein by reference.