CN2392659Y

CN2392659Y - Water-supply and sewerage pipe mould

Info

Publication number: CN2392659Y
Application number: CN 98226447
Authority: CN
Inventors: 周柏兴
Original assignee: Wujin City No1 Pipe-Mould Factory
Current assignee: Wujin City No1 Pipe-Mould Factory
Priority date: 1998-04-09
Filing date: 1998-04-09
Publication date: 2000-08-23
Anticipated expiration: 2008-04-09

Abstract

The utility model relates to a water-supply and sewerage pipe mould which is provided with an oil cylinder piston. A piston plate, a guide sleeve and a fixed mould plate are fixed at the end part of the oil cylinder piston. A convex mould core under a concave mould core is arranged under the piston plate, and a movable cavity is formed among the convex mould core, the concave mould core and the fixed mould plate. Two groups of movable mould core groups are arranged in the movable cavity, and a trapezoidal movable cavity is formed between the groups of movable mould core groups and the convex mould core. Two groups of draw rod groups which are arranged on the piston plate extend into the trapezoidal movable cavity, and the inner side of the fixed mould plate in the movable cavity is provided with a supporting mould ring. An injection cavity is formed among the supporting mould ring, the two groups of the movable mould core groups, the convex mould core and the fixed mould plate, and the position of the injection cavity corresponding to the end parts of the two groups of draw rod groups is a shaped concavity injection cavity. The utility model can make a non-straight water-supply and sewerage pipe molded in a one-step injection mode.

Description

Plumbing pipe fitting mould

The utility model relates to the single injection-molded mould of a kind of injection mold of duroplasts plumbing pipe fitting, particularly non-direct type pipe fitting.

In water supply and sewage work, for pipe fitting is connected closely, the plumbing pipe fitting that uses generally adopts non-direct type core pipe fitting at present, as Fig. 1, because the restriction of ejection technique, conventional this type of pipe fitting of making needs post forming, at first be injection molded into as Fig. 2, used core rod is straight pattern core, is convenient to the demoulding, and then carry out secondary operations, be processed into as shown in Figure 1.Since can not one-shot forming, the manufacturing of the plumbing pipe fitting of this routine, and efficient is low, the cost height.

The purpose of this utility model is to design the plumbing pipe fitting mould of a kind of energy with the non-direct type wick feed water-drainage tube part single injection-molded of above-mentioned as 1 class of quarrelling.

The technical solution of the utility model: have an oil cylinder piston 1, be fixed on piston plate 2, fairlead 3, the solid plate 4 of piston 1 end, solid plate 4 connects with fairlead 2 by screw and forms mold cavity, a. the piston plate 2 in the mold cavity has die plate insert 5, the chimeric part that " protruding " portion that is located at mold cavity below punch insert 6 is arranged of its " recessed " portion, be provided with the lockplate 7 that is fixed on screw 71 ends between solid plate 4 and the die plate insert 5, be connected by screw 71 between lockplate 7 and the solid plate 4, solid plate 4 inboards of corresponding lockplate 7 have cavity 41; B. " shoulder " portion of die plate insert 5 and punch insert 6, " protruding " portion of punch insert 6, solid plate 4 madial walls form movable chamber 8, be provided with movable core rod group 91 and movable core rod group 92 in the movable chamber 8, the single-unit activity core rod of two groups of activity core rods is adjacent at interval, " protruding " portion of two groups of activity core rod groups and punch insert 6 and " shoulder " portion formation ladder activities chamber 81, between die plate insert 5 and movable core rod group, be provided with " protruding " portion that the punch collar 10 is enclosed within punch insert 6, solid plate 4 inboards in the movable chamber 8 are provided with a modular ring 11, prop up movable core rod group 91,92 outer middle side parts, solid plate 4 madial walls that prop up 10 of the modular ring 11 and the punch collars are provided with core rod ring 12, joint bolt 13 is with die plate insert 5, the punch collar 10 connects with a modular ring 11, c. on piston plate 2, be provided with pull bar group 141 and pull bar group 142, corresponding two groups of activity core rod groups 91,92, tie rod end is a pull bar die head 15, and pull bar is by die plate insert 5, the punch collar 10, movable core rod group reaches 81 bottoms, ladder activities chamber; D. prop up and form injection molding cavity 16 between modular ring 11, movable core rod group 91,92, punch insert 6 outer walls and solid plate 4 madial walls, wherein corresponding pull bar die head 15 places, movable core rod group evagination, solid plate madial wall indent forms special-shaped concavity injection molding cavity 161.

As further technical measures of the present utility model, in above-mentioned two groups of pull bar groups, one group of pull bar group 142 is fixedlyed connected with piston plate 2, and another group pull bar group 141 can be slided relatively with piston plate 2, and the nut 1411 of its pull bar and 2 of piston plates have a gap.

As the utility model technical measures further, in the above-mentioned movable core rod group, every group of activity core rod group has three or four movable core rods, and every group of corresponding pull bar group has three or four pull bars.

The utility model adopts two groups of pull bar groups and two groups of activity core rod groups; the outer Zhi Youzhi modular ring of core rod group; when drawing on the pull bar group; elder generation's drive activity core rod group moves as lever; be convenient to the protruding demoulding in the core rod group outside, carry out total demoulding then, thereby can make non-direct type plumbing pipe fitting single injection-molded; improve work efficiency, reduced cost.

Fig. 1 is a non-direct type duroplasts plumbing pipe fitting structural representation;

Fig. 2 is the fitting structure schematic diagram that needs secondary operations behind the conventional demoulding;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is A-A cutaway view of the present utility model (embodiment one);

Fig. 5 is A-A cutaway view of the present utility model (embodiment two);

Fig. 6 is partial enlarged drawing C among Fig. 3.

Below in conjunction with accompanying drawing in detail embodiment is described in detail:

Embodiment one: oil cylinder piston 1 end of oil cylinder is fixed with piston plate 2; solid plate 4; connect with fairlead 3 and form mold cavity by screw; piston plate 2 in the mold cavity has die plate insert 5; its " recessed " portion embedding thing has the part of " protruding " portion that is located at mold cavity below punch insert 6; be provided with the lockplate 7 that is fixed on screw 71 ends between solid plate 4 and the die plate insert 5; be connected by screw 71 between lockplate 7 and the solid plate; solid plate 4 inboards of corresponding lockplate 7 have cavity 41; the shoulder of die plate insert 5 and punch insert 6; the protuberance of punch insert 6; solid plate 4 madial walls form movable chamber 8; be provided with movable core rod group 91 and movable core rod group 92 in the movable chamber 8; respectively have three single-unit activity core rods; two groups of activity core rod groups 91 and 92 single-unit activity core rod are adjacent at interval; two groups of activity core rod groups 91 and 92 and " protruding " portion of punch insert 6 and " shoulder " portion formation ladder activities chamber 81; in die plate insert 5 and movable core rod group 91; be provided with " protruding " portion that the punch collar 10 is enclosed within punch insert 6 between 92; solid plate 4 inboards in the movable chamber 8 are provided with a modular ring 11; prop up the movable core rod group of letter 91 and 92 outer middle side parts; solid plate 4 madial walls that prop up 10 of the modular ring 11 and the punch collars are provided with core rod ring 12; joint bolt 13 is with die plate insert 5; the punch collar 10 connects with a modular ring 11; on piston plate 2, be provided with pull bar group 141 and pull bar group 142; difference corresponding movable core rod group 91 and 92; pull bar group 141 and 142 ends are pull bar die head 15; pull bar group 141 and 142 is by die plate insert 5; the punch collar 10; movable core rod group 91 and 92 reaches 81 bottoms, ladder activities chamber; three pull bars of pull bar group 142 are fixedlyed connected with piston plate 2; three pull bars of pull bar group 141 can slide relatively with piston plate 2, and the nut 1411 of pull bar group 141 and 2 of piston plates have a gap.Prop up modular ring 11, movable core rod group 91,92, punch insert 6 outer walls and solid plate 4 madial wall indents, form special-shaped concavity injection molding cavity 161.

Embodiment two: bigger as plumbing pipe fitting caliber, when corresponding mould was also big, in the above-mentioned movable core rod group 91 and 92, every group of activity core rod group was for there being four single-unit activity core rods, and corresponding pull bar group 141 and 142 all has four pull bars.As Fig. 5.

During work, plastics are injected injection molding cavity 16, when treating that certain hour needs the demoulding, rotating screw 71 is brought lockplate 7 into the cavity 41 of solid plate 4, start oil cylinder, oil cylinder piston 1 drives on the piston plate 2 and draws, pull bar group 142 is fixing with

piston plate

2, and 2 of the nut 1411 of pull bar group 141 and piston plates have the space, the nut 1411 that piston plate 2 need push up pull bar group 141 just makes its rising, so pull bar group 141 and 142 rises difference in height is arranged, like this when pull bar group 141 and 142 each self-corresponding movable core rod group 91 of lifting and 92, two groups of activity core rod groups 91 and 92 rise can be poor if having time, when being unlikely to closely to draw on simultaneously because of structure because tensioner is all stiff mutually.When the pull bar die head 15 of pull bar group 141 and 142 is carried on the skew surface in ladder activities chamber 81; movable core rod group 91 and 92 is that fulcrum moves to 81 centers, ladder activities chamber with a modular ring 11; when pull bar group 141 and 142 rises to movable core rod group 91 and 92 upwards in the lifting process; movable core rod group 91 and 92 evagination are partly thrown off special-shaped injection molding cavity 161; thereby pull bar group 141 and 142 is with movable core rod group 91 and 92; prop up modular ring 11; the punch collar 10; die plate insert 5 is pulled out mold cavity; again fairlead 3 and solid plate 4 are thrown off; the solid plate 4 of taking away can take out the duroplasts plumbing pipe fitting of moulding from punch insert 6.

Claims

1, a kind of plumbing pipe fitting mould, has an oil cylinder piston (1), be fixed on the piston plate (2) of piston (1) end, fairlead (3), solid plate (4), solid plate (4) connects with fairlead (3) by screw (21) and forms mold cavity, it is characterized in that: the piston plate (2) in a. mold cavity has die plate insert (5), the chimeric part that " protruding " portion that is located at mold cavity below punch insert (6) is arranged of its " recessed " portion, be provided with the lockplate (7) that is fixed on screw (71) end between solid plate (4) and the die plate insert (5), be connected by screw (71) between lockplate (7) and the solid plate (4), solid plate (4) inboard of corresponding lockplate (7) has cavity (41); B. " shoulder " portion of die plate insert (5) and punch insert (6); " protruding " portion of punch insert (6); solid plate (4) madial wall forms movable chamber (8); be provided with movable core rod group (91) and movable core rod group (92) in the movable chamber (8); the single-unit activity core rod of two groups of activity core rods is adjacent at interval; " protruding " portion of two groups of activity core rod groups and punch insert (6) and " shoulder " portion formation ladder activities chamber (81); between die plate insert (5) and movable core rod group, be provided with " protruding " portion that the punch collar (10) is enclosed within punch insert (6); solid plate (4) inboard in the movable chamber (8) is provided with a modular ring (11); prop up movable core rod group (91; 92) outer middle side part; solid plate (4) madial wall that props up between the modular ring (11) and the punch collar (10) is provided with core rod ring (12); joint bolt (13) is with die plate insert (5); the punch collar (10) connects with a modular ring (11); c. on piston plate (2), be provided with pull bar group (141) and pull bar group (142); corresponding two groups of activity core rod groups (91; 92); tie rod end is pull bar die head (15); pull bar is by die plate insert (5); the punch collar (10); movable core rod group reaches bottom, ladder activities chamber (81) d. and props up modular ring (11); movable core rod group (91; 92); form injection molding cavity (16) between punch insert (6) outer wall and solid plate (4) madial wall; wherein corresponding pull bar die head (15) is located; movable core rod group evagination; solid plate madial wall indent forms special-shaped concavity injection molding cavity (161).

2, plumbing pipe fitting mould according to claim 1, it is characterized in that: in described two groups of pull bar groups (141,142), one group of pull bar group (142) is fixedlyed connected with piston plate (2), another group pull bar group (141) can be slided relatively with piston plate (2), and between nut of its pull bar (1411) and piston plate (2) gap is arranged.

3, plumbing pipe fitting mould according to claim 1 is characterized in that: described movable core rod group (91,92), and every group of activity core rod group has three or four movable core rods, and every group of corresponding pull bar group has three or four pull bars.