CN2350009Y

CN2350009Y - Improved artificial tooth forming device feed tube

Info

Publication number: CN2350009Y
Application number: CN 98248733
Authority: CN
Inventors: 简金田
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-27
Filing date: 1998-11-27
Publication date: 1999-11-24
Anticipated expiration: 2008-11-27

Abstract

The utility model relates to an improved artificial tooth forming device feed barrel which comprises an outer barrel, an inner barrel and a tabletting, wherein the vertical wall plane of the tabletting has a taper that can be contained exactly in the inner barrel, and the maximum diameter of the tabletting is exactly matched with the internal diameter of the inner barrel. Thereby, the tabletting can be arranged in the inner barrel for extruding plastic. Because of the low cost of the tabletting in the inner barrel, when the feeding work is completed, the tabletting can be left in the inner barrel and discarded together with the inner barrel. The device has the function that the device can inject conveniently the plastic into a moulding box.

Description

The material feeding tube of the Denture forming machine of improvement

This utility model relates to a kind of manufacturing field of artificial tooth, particularly relates to a kind of material feeding tube that can conveniently plastics be injected the Denture forming machine of the improvement in the moulding box.

See also Fig. 1, the device of general artificial tooth molding must cooperatively interact with material injecting device 10, moulding box 20 and material feeding tube 30, to obtain required artificial tooth molding product.This material injecting device 10 mainly comprise one can upper and lower displacement lifting platform 11, and the depression bar 12 used of material feeding; This moulding box 20 is made up of plurality of module, which is provided with sprue 21, be equipped with the Gypsum Fibrosum master mold 22 of tool profile of tooth in the moulding box 20, and after moulding box 20 is fixed in lifting platform 11, again material feeding tube 30 is placed sprue 21 tops of moulding box 20, make lifting platform 11 rise after, depression bar 12 is resisted against material feeding tube 30, plastics (thermoplastic resin) in the material feeding tube 30 are injected in the moulding box 20, treat that the plastics that molding is taken out in the dried solid back demoulding promptly become artificial tooth molding product.

Please cooperate and consult Fig. 2,3, above-mentioned material feeding tube 30 is to be made of outer cylinder body 31, inner barrel 32 and piston block 33, and its middle cylinder body 31 is the cylindrical shell of hollow, inner barrel 32 is a shape cylindrical shell, and can be placed in the outer cylinder body 31, piston block 33 is a cylindrical piece made of copper, it just can be placed in the inner barrel 32.By above-mentioned structure, plastics (thermoplastic resin) can be placed inner barrel 32, after its heater via is heated as the liquid condition that dissolves, pick and place sprue 21 tops, make lifting platform 11 rise again to moulding box 20, depression bar 12 is resisted against the piston block 33 in the inner barrel 32, make plastics be pressurized to certain pressure, inner barrel 32 bottoms, corresponding sprue 21 parts then can be broken because of release of pressure, make plastics be injected Gypsum Fibrosum master mold 22 in the moulding box 20 fast, and then finish the material feeding program.Because piston block 33 is a cylindrical piece made of copper, its cost is quite high, so after material feeding is finished, then need utilize the punching press towards tool, inner barrel 32 is dashed from outer cylinder body 31, and break inner barrel 32 again, and then obtain piston block 33.Yet, bother again owing to destroy the complex operation of inner barrel 32, and easily make the sharp-pointed part incised wound operator of breaking when breaking inner barrel 32, and piston block 33 places inner barrel 32 can be stained with glutinous plastics, make piston block 33 recovery operation difficulties, and then increase the puzzlement in the material feeding operation.

The purpose of this utility model is, provides a kind of material feeding tube that can conveniently plastics be injected the Denture forming machine of the improvement in the moulding box, to improve the shortcoming that above-mentioned material feeding tube is produced because of the material feeding problem.

The purpose of this utility model is realized by following technical scheme.

A kind of material feeding tube of Denture forming machine of improvement, it mainly cooperates institute to constitute by outer cylinder body, inner barrel and tabletting, it is characterized in that the vertical walls of this tabletting has tapering, it just can be placed among the inner barrel, makes the maximum gauge of tabletting just be fit to the internal diameter of inner barrel.Tabletting can be placed inner barrel whereby, for the usefulness of extruding plastic, because the intravital tabletting cost of inner core is extremely low, so after material feeding work is finished, tabletting can be kept somewhere in inner barrel, and be abandoned (or reclaiming the system again that dissolves) in the lump, reach the convenient effect that plastics are injected moulding box with inner barrel.

Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Fig. 1 is general Denture forming machine floor map.

Fig. 2 is the preceding sketch map of the material feeding tube material feeding of general Denture forming machine.

Fig. 3 is a sketch map after the material feeding tube material feeding of general Denture forming machine.

Fig. 3 A is the enlarged diagram at position shown in Figure 3.

Fig. 4 is the exploded perspective sketch map of this utility model structure.

Fig. 5 is a plan cross-section decomposing schematic representation of the present utility model.

Fig. 6 is a sketch map before this utility model material feeding.

Fig. 7 is a sketch map after this utility model material feeding.

Fig. 7 A is the enlarged diagram at position shown in Figure 7.

As shown in Figure 4, this utility model mainly is to be cooperated by outer cylinder body 40, inner barrel 50 and tabletting 60 to constitute, wherein:

Outer cylinder body 40 please consults 4,5 simultaneously, and it is made by the preferable metal of hardness (as: rustless steel), and establish a through hole 41 in central authorities, make its cylindrical shell that becomes hollow, this through hole 41 has suitable tapering, and the outer wall upper limb of outer cylinder body 40 is established a clamping annular groove 42.

Inner barrel 50, please consult Fig. 4,5 more simultaneously, it is made by the lower metal of hardness (as: aluminum), an end seals, the shape cylindrical shell of end opening and be, this inner barrel 50 can be placed through the through hole 41 of outer cylinder body 40, and, when being placed, inner barrel 50 just can be placed among the outer cylinder body 40 because of through hole 41 has suitable tapering.

Tabletting 60 is also please consulted Fig. 4,5 simultaneously, and it is the lamellar body that generally is shape, and makes its vertical walls have suitable tapering, and 60 of this tablettings just can be placed among the inner barrel 50, makes the maximum gauge of tabletting 60 just be fit to the internal diameter of inner barrel 50.

By above-mentioned structure, please consult Fig. 6 simultaneously, 7, plastics (thermoplastic resin) can be placed in the inner barrel 50, inner barrel 50 places outer cylinder body 40 again, after its heater via is heated as the liquid condition that dissolves, clamping annular groove 42 with clamp outer cylinder body 40 outer wall upper limbs, and pick and place sprue 21 tops to moulding box 20, make outer cylinder body 40 and inner barrel 50 bottom bearings on moulding box 20, make lifting platform 11 rise again, depression bar 12 is resisted against the tabletting 60 in the inner barrel 50, tabletting 60 is squeezed and to plastics (thermoplastic resin) pressurizations, when plastics (thermoplastic resin) are pressurized to certain pressure, inner barrel 50 bottoms, corresponding sprue 21 parts, then can be because of release of pressure break, make plastics (thermoplastic resin) be injected Gypsum Fibrosum master mold 22 in the moulding box 20 fast, and then finish the material feeding program.Again, after material feeding was finished, outer cylinder body 40, inner barrel 50 and tabletting 60 utilized the punching press towards tool again, and inner barrel 50 and tabletting 60 are dashed from outer cylinder body 40.Because tabletting 60 costs in the inner barrel 50 are extremely low, thus after material feeding work is finished, tabletting 60 can be kept somewhere in inner barrel 50, and abandon (or reclaiming the system again that dissolves) in the lump with inner barrel 50, and only keep the usefulness of outer cylinder body 40 as next material feeding.

As can be known, this utility model provides a kind of convenience that plastics (thermoplastic resin) are injected material feeding tube structure in the moulding box from the above and embodiment shown in the drawings.Technological means that this utility model used and structural feature thereof really can reach its purpose, have significant practicality and progressive, and it really at first finishes for the creator, meet novel patent requirement, so file an application in accordance with the law.

Claims

A kind of material feeding tube of Denture forming machine of improvement, it mainly cooperates institute to constitute by outer cylinder body, inner barrel and tabletting, it is characterized in that the vertical walls of this tabletting has tapering, it just can be placed among the inner barrel, makes the maximum gauge of tabletting just be fit to the internal diameter of inner barrel.