CN2933642Y

CN2933642Y - Mold structure of tube element

Info

Publication number: CN2933642Y
Application number: CNU2006201236722U
Authority: CN
Inventors: 林志琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-12
Filing date: 2006-07-12
Publication date: 2007-08-15
Anticipated expiration: 2016-07-12

Abstract

The utility model relates to a die structure of a pipe fitting, which comprise two sectional dies, an upper die and a lower die, the upper die and a pipe fitting facing the lower die and to be formed are provided respectively with a first cavity and a second cavity, connected with each other. The first cavity is provided with concave die patterns or both the first cavity and the second cavity can be provided with concave die patterns. When the pipe fitting is put into the sectional dies, high pressure oil is pumped through both ends of the pipe fitting, allowing the larger areas and thicker wall of the pipe fitting to form first. Then oil supply is stopped to enable the internal pipe fitting a sealing status, and then pressure is added at the axial direction to the high pressure oil through both ends of the pipe fitting, forming 3D patterns on the pipe wall of the pipe fitting. The present technology is that, the pipe fitting is formed by outward distraction of the forming die core, which makes the concave block on the forming die core to outwardly extrude the inner wall of the pipe fitting, which is consequently restricted by the shape and the size of the pipe and is difficult to draw the die. The utility model can effectively solve the problems and can easily make the pipe wall form the 3D patterns, thereby is very practical.

Description

The mould structure of pipe fitting

Technical field

The utility model relates to a kind of bicycle pipe part forming mould, particularly relates to a kind of plastic mould structure that goes out to have the pipe fitting of three-dimensional decoration pipe fitting.

Background technology

The pipe fitting of Regular Bicycle, as bicycle profile tube, handle or front fork tube, back breeches pipe, making in the processing is to utilize a molding heart to be placed through on this bicycle pipe part mostly, again this shaping mould mind-set is strutted outward, the stud module that makes this shaping mould be provided with specific moulding is in the heart outwards extruded by the inwall of this pipe fitting, make the tube wall of this pipe fitting form the decoration moulding (as sample trademark pattern) of protrusion thereupon, yet this kind method need be placed through the shaping mould heart among this pipe fitting, and this shaping mould stud module in the heart is all fixing structure, therefore only can impose and extend out to process decoration to the pipe fitting of same diameter, and for standpipe that handle or different big or small caliber constituted, front fork tube or back breeches pipe, owing to can be difficult for because of the demoulding, just can't produce the moulding with concave-convex decoration comes, therefore make general hundle-bar, standpipe, and before, back breeches pipe all can only be limited to same equal caliber, and can not be protruding in sample trademark pattern again on this caliber, and cause the outward appearance of product very dull and old-fashioned and inflexible, what can not catch a buying public chooses wish.

This shows that the mould structure of above-mentioned existing pipe fitting obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but does not see always that for a long time suitable design finished by development, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of mould structure of new pipe fitting, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.

Because the defective that the mould structure of existing pipe fitting exists, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and cooperates the scientific principle utilization, actively studied innovation, in the hope of founding a kind of mould structure of new pipe fitting, make it have more practicality.Through constantly research, design, and, create the utility model finally through after studying repeatedly and improving.

Summary of the invention

The utility model main purpose is, overcome the defective of the mould structure existence of existing pipe fitting, and provide a kind of mould structure of novel pipe fitting, technical problem to be solved is to make it inject hydraulic oil in pipe fitting by the pipe fitting two ends, and hydraulic oil is imposed axial pressurization by these pipe fitting two ends, make the tube wall of this pipe fitting mold decoration moulding by this, thereby be suitable for practicality more with stereo concave-convex.

The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.Mould structure according to a kind of pipe fitting that the utility model proposes, this mould structure comprises a mold and a bed die that is involutory, this mold and this bed die opposite face also respectively are provided with first die cavity and second die cavity that is connected according to a pipe fitting to be formed, this first die cavity and be provided with stud mould line.

The purpose of this utility model and solve its technical problem and can also be able to be further achieved by the following technical measures.The mould structure of aforesaid pipe fitting, wherein said stud mould line also can be arranged on this second die cavity.

The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the mould structure of the utility model pipe fitting has following advantage at least: because mould of the present utility model is for inserting a preformed pipe fitting, can inject hydraulic oil by the two ends of this pipe fitting after making mold closing, make the pipe fitting of desiring moulding in part elder generation moulding than large tracts of land or relatively thick, again with the closed at both ends of pipe fitting, hydraulic oil is imposed axial pressurization, make the plastic moulding decoration that goes out to have solid of relatively thick part; So can effectively solve in the prior art and strut outward by the shaping mould mind-set, make shaping mould in the heart the stud module outwards push by the inwall of this pipe fitting, and can be limited by the caliber shape and the size of pipe fitting, and the problem that is difficult for withdrawing pattern, can make the tube wall of this pipe fitting mold decoration moulding very easily, be very suitable for practicality with stereo concave-convex.

In sum, the mould structure of the pipe fitting of the utility model novelty, comprise the mold and the bed die that are involutory, this mold and bed die opposite face, and respectively be provided with first die cavity and second die cavity that is connected according to a pipe fitting to be formed, this first die cavity or the second die cavity correct position are provided with the stud mould line that forms three-dimensional contouring, and this first die cavity, second die cavity be for this pipe fitting insert involutory after, inject hydraulic oil in pipe fitting by these pipe fitting two ends, make the first moulding of this pipe fitting larger area part, fuel cut-off again, make pipe fitting inside be the sealing shape again, and by these pipe fitting two ends hydraulic oil is imposed axial pressurization, make the tube wall of this pipe fitting mold decoration moulding by this, be very suitable for practicality with stereo concave-convex.It has above-mentioned plurality of advantages and practical value, no matter bigger improvement is all arranged on mould structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the mould structure of more existing pipe fitting has the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model one preferred embodiment.

Fig. 2 is the schematic perspective view of the moulding pipe fitting of the utility model one preferred embodiment.

Fig. 3 is the plastic stereogram that goes out bicycle handle tube spare of the utility model one preferred embodiment.

Fig. 4 and Fig. 5 are the plastic pipe fitting stereograms that goes out to have difformity and big or small caliber of the utility model one preferred embodiment.

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of mould structure, structure, feature and effect thereof according to the pipe fitting that the utility model proposes, describe in detail as after.

See also Fig. 1, shown in Figure 2, Fig. 1 is the stereogram of the utility model one preferred embodiment, and Fig. 2 is the stereogram of the moulding pipe fitting of the utility model one preferred embodiment.The mould structure of the pipe fitting of the utility model preferred embodiment, comprise the mold 10 and the bed die 20 that are involutory, this mold 10 is with these bed die 20 opposite faces and according to pipe fitting a (as shown in Figure 2) profile to be formed, be respectively equipped with one first die cavity 11 and second die cavity 21 that are connected, this first die cavity 11 is the bottom surfaces that are positioned at this mold 10, this second die cavity 21 is the end faces that are positioned at this bed die 20, and this first die cavity 11 or this second die cavity 21 can be provided with the stud mould line b of relative shape according to the decoration moulding of pipe fitting a to be formed, the space that this first die cavity 11 and second die cavity 21 constitute after the combination, be for inserting metal material pipe fitting a to be formed, mold closing injects hydraulic oil respectively by two ends of this pipe fitting a afterwards again, so that this pipe fitting a larger area partly reaches thicker tube wall elder generation moulding, fuel cut-off makes this pipe fitting a be the sealing shape again, then hydraulic oil is imposed axial pressurization by this pipe fitting a two ends, make thicker tube wall mold decoration moulding with solid according to the stud mould line b of this first die cavity 11 (or this second die cavity 21), and this decoration moulding can be brand logo, opens mold 10 and can take out the pipe fitting a that has three-dimensional decoration moulding after the moulding.

See also Fig. 3, Fig. 4 and shown in Figure 5, Fig. 3 is the plastic stereogram that goes out bicycle handle tube spare of the utility model one preferred embodiment, and Fig. 4 and Fig. 5 are the plastic pipe fitting stereograms that goes out to have difformity and big or small caliber of the utility model one preferred embodiment.By above-mentioned structure, this pipe fitting a can be bend pipe hundle-bar as shown in Figure 3, also can be other pipe fitting a with difformity or big or small caliber composition, as Fig. 4 and shown in Figure 5.

Because mould of the present utility model is for inserting a preformed pipe fitting a, can inject hydraulic oil by this pipe fitting a two ends after making mold closing, make the pipe fitting a that desires moulding in part elder generation moulding than large tracts of land or relatively thick, again with the closed at both ends of pipe fitting a, hydraulic oil is imposed axial pressurization, make the plastic moulding decoration that goes out to have solid of relatively thick part; So can solve in the existing conventional art and strut outward by the shaping mould mind-set, make shaping mould in the heart the stud module outwards push by the inwall of this pipe fitting, and can be limited by the caliber shape and the size of pipe fitting, have the problem that is difficult for withdrawing pattern.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1, a kind of mould structure of pipe fitting, it is characterized in that this mould structure comprises a mold (10) and a bed die (20) that is involutory, this mold (10) and this bed die (20) opposite face also respectively are provided with first die cavity (11) and second die cavity (21) that is connected according to a pipe fitting (a) to be formed, this first die cavity (11) and be provided with stud mould line (b).

2, the mould structure of pipe fitting according to claim 1 is characterized in that wherein said stud mould line (b) also can be arranged on this second die cavity (21).