1. Field of the Invention
The present invention relates to a nozzle-contacting device of an injection molding machine, and more particular to a nozzle-contacting device of an injection molding machine for avoiding a stuff leaking and reducing a defective fraction of the products.
2. Description of the Prior Art
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Thus it can bee seen, the prior art described above still has some defects, is not a good design, however, and is urgently to be improved.
Because of the technical defects of the conventional nozzle-contacting device of the injection molding machine described above, the applicant keeps on carving unflaggingly to develop a nozzle-contacting device of an injection molding machine of the present invention through wholehearted experience and research.
It is an object of the present invention to provide a nozzle-contacting device of an injection molding machine for avoiding a stuff leaking.
It is another object of the present invention to provide a nozzle-contacting device of an injection molding machine for reducing a defective fraction of the finished products.
The nozzle-contacting device of the injection molding machine for achieving the purposes described above includes:
an injection module set on a sliding trough which is locked and fixed on a lathe bed, wherein a back end of the injection module is set a nozzle-adjusting device which is locked and fixed on the lathe bed; and
a mold-holding structure set on the lathe bed and comprising an adjusting plate and a mold-clamping structure having plural tie rods, wherein the adjusting plate is sleeved on plural tie rods, and one or more driver is set on a front of the mold-clamping structure for penetrating a dead plate of the molding-holding structure and connecting to the adjusting plate;
wherein the injection module is set on a front end of the dead plate of the mold-holding structure and the dead plate has a perforation set on a centre thereof corresponding to a position of the nozzle of the injection module.
The drawings disclose an illustrative embodiment of the present invention which serves to exemplify the various advantages and objects hereof, and are as follows:
1 Injection module
11 Nozzle
12 Sliding trough
13 Nozzle-adjusting device
131 Screw
132 Screw nut
133 Adjusting seat
2 Mold-holding structure
21 Mold-clamping structure
22 Dead plate
221 Perforation
23 Plural tie rods
24 Adjusting plate
25 Driver
26 Guiding rod
3 Lathe bed
4 Mold
5 Compressing clearance
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an injection module 1, wherein the injection module 1 has a nozzle 11 set on a front end thereof, the injection module 1 is set on a sliding trough 12 which is locked and fixed on a lathe bed 3, a back end of the injection module 1 is set a nozzle-adjusting device 13 which is locked and fixed on the lathe bed 3, and the nozzle-adjusting device 13 is capable of moving the injection module 1 to slide on the sliding trough 12 by utilizing a screw; and
a mold-holding structure 2, wherein the mold-holding structure 2 is set on the lathe bed 3 and comprises a mold-clamping structure 21 and an adjusting plate 24; plural tie rods 23 are set on the mold-clamping structure 21, the mold 4 is fixed on the adjusting plate 24, and then the adjusting plate 24 is sleeved on each plural tie rods 23; one or more driver 25 is set on a front end of a dead plate 22 and is penetrated the dead plate 22 to connect to the adjusting plate 24; and one or more driver 25 is capable of driving the adjusting plate 24 to move on plural tie rods 23 by utilizing a vapour cylinder;
wherein the injection module 1 is set on the front end of the dead plate 22 of the mold-holding structure 2 and the dead plate 22 has a perforation 221 set on a centre thereof corresponding to a position of the nozzle 11 of the injection module 1.
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The nozzle-contacting device of the injection molding machine according to the present invention, when being compared with the other prior arts, further includes the advantages as follows:
1. The nozzle-contacting device of the injection molding machine according to the present invention utilizes the clamping force produced by the mold-clamping structure to push the injection module and the mold, so that a contacting force will be produced between the nozzle set at the front end of the injection module and the mold. The contacting force produced by this way will be greater than that produced by the prior art, and when an injection pressure or a retaining pressure is getting higher, the clearance will not be produced between the nozzle and the mold and a leak of the plastic will not be happened.
2. In the nozzle-contacting device of the injection molding machine according to the present invention, before injection molding, through the nozzle-adjusting device to pre-leave the compressing clearance between the nozzle-adjusting device and the dead plate, the nozzle will take up the compression amount of the compressing clearance and produce an elastic deformation so as to increase the contacting force between the nozzle and the mold when the nozzle and the mold suffer the compression.
Many changes and modifications in the above described embodiment of the invention can, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in science and-the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims.
Number | Date | Country | Kind |
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91218639 U | Nov 2002 | TW | national |
Number | Name | Date | Kind |
---|---|---|---|
5382158 | Herbst | Jan 1995 | A |
5895670 | Jaroschek et al. | Apr 1999 | A |
6203312 | Romi | Mar 2001 | B1 |
6554606 | Koide et al. | Apr 2003 | B1 |
Number | Date | Country | |
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20040096541 A1 | May 2004 | US |