CN105034271A

CN105034271A - Elbow injection mold

Info

Publication number: CN105034271A
Application number: CN201510411001.XA
Authority: CN
Inventors: 季音
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2015-11-11

Abstract

The invention provides an elbow injection mold. The elbow injection mold comprises an upper mold base plate, a cavity fixing plate, a core fixing plate, a mold foot cushion block, an ejector pin cover plate, an ejector pin push plate, a lower mold base plate, a core insert, a cavity insert, an elbow core pulling oil cylinder, an oil cylinder stay, a first connecting pin, a small center pull block, a second connecting pin, an arc-shaped sliding block, an arc-shaped guiding block, an elbow core, a straight tube core, a sliding block body, an oblique guide pillar and a sliding block reinforcing support. By the adoption of the elbow injection mold, the defects of the prior art that in the two-section elbow injection molding process, filling is insufficient and short shot is caused are overcome, and the practical production problems that mold cavity pressure is hard to balance, the number of burrs is large, filling is insufficient, wall thickness uniformity is hard to guarantee, and efficiency is low are solved; automatic zero-defect molding is achieved with the simple mechanism, and product molding quality is effectively guaranteed; the structural design is reasonable, the structure is compact, and working is stable.

Description

A kind of bent pipe injection die

Technical field

The present invention relates to injection mold mechanism design field, be specially a kind of bent pipe injection die.

Background technology

As shown in Figure 1, during the injection mo(u)lding of binodal bend pipe, be limited to the feature of shape of product, there is following problem when actual production in existing mold: one is that gate location difficulty is determined, easily look for partially, when causing injection moulding product filling not full, the defect such as to short, another problem is that cavity closed difficult sealing is to ensure, injection moulding overlap is more, and wall thickness is difficult to ensure that card evenly; Three to be moulds be that one cavity mold is produced for it, and efficiency is low; Thus, the palpus special demoulding core-pulling mechanism of design and mould structure are produced with the automation injection moulding completing product.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of bent pipe injection die, reasonable in design, compact conformation, and working stability is safe and reliable, easy-to-use; For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of bent pipe injection die, comprises upper clamping plate, impression bolster, core fixing plate, mould foot rest, thimble cover plate, thimble push plate, counterdie seat board, core mold insert, die cavity mold insert, bend pipe loose core oil cylinder, oil cylinder tie rod, the first coupling pin, the little pulling block in center, the second coupling pin, circular arc slide block, circular arc guide pad, bend pipe core, straight tube core, slide body, Angle Pin, slide block reinforced support.

As preferably, described mould die carrier structure assembly comprises upper clamping plate, impression bolster, core fixing plate, mould foot rest, thimble cover plate, thimble push plate, counterdie seat board.

As preferably, described mould molding assembly comprises core mold insert, die cavity mold insert, bend pipe core, straight tube core.

As preferably, described mould bend pipe assembly of loosing core comprises bend pipe and to loose core oil cylinder, oil cylinder tie rod, the first coupling pin, the little pulling block in center, the second coupling pin, circular arc slide block, circular arc guide pad, bend pipe core; Circular arc slide block one end is provided with bend pipe core, and one end is by oil cylinder tie rod, the first coupling pin, the little pulling block in center, the second coupling pin, connect with bend pipe oil cylinder of loosing core in addition; Bend pipe core, straight tube core touch and pass as the conical surface touches the mode of wearing.

As preferably, described mould straight tube assembly of loosing core comprises straight tube core, slide body, Angle Pin, slide block reinforced support.

As preferably, described mold layout is that a mould goes out two chambeies, and running gate system adopts side to enter to water mode.

As preferably, described mould structure layout is mould four chamber, and entering the mode of watering is central point cast gate mode; Runner and each half of cast gate are arranged on left slider, right slide block, and for slide block being arranged running channel mode, integrated poured runner is closed formed by left slider, right slide block lobe.

Beneficial effect: a kind of bent pipe injection die that the present invention adopts technique scheme to provide, overcome in binodal bend pipe product molding injection molding process, during prior art injection moulding product filling not full, the defect such as to short, cavity pressure have much difficulty in healing weighing apparatus, overlap is many, filling is not full, overlap is more, wall thickness be difficult to ensure card evenly, the actual production problem such as efficiency is low, the zero-fault automation molding achieving the said goods with simple mechanism is produced, and effectively ensure that forming quality of products; Reasonable in design, compact conformation, working stability.

Accompanying drawing explanation

Fig. 1 is a kind of bent pipe injection die institute of the present invention application product schematic diagram;

Fig. 2 is a kind of bent pipe injection die dynamic model of the present invention structural representation;

Fig. 3 is a kind of bent pipe injection die fixed mould structure of the present invention schematic diagram;

Fig. 4 is a kind of bent pipe injection die die carrier structure of the present invention schematic diagram;

Fig. 5 is a kind of bent pipe injection die core pulling mechanism for bent tube of the present invention scheme of installation;

Fig. 6 is a kind of bent pipe injection die straight tube of the present invention core-pulling mechanism scheme of installation;

Fig. 7 is a kind of bent pipe injection die straight tube of the present invention core-pulling slide block scheme of installation.

Detailed description of the invention

Fig. 1-7 is depicted as related description figure of the present invention; A kind of bent pipe injection die, comprise upper clamping plate 1, impression bolster 2, core fixing plate 3, mould foot rest 4, thimble cover plate 5, thimble push plate 6, counterdie seat board 7, core mold insert 8, die cavity mold insert 9, bend pipe loose core oil cylinder 10, oil cylinder tie rod 11, first coupling pin 12, center little pulling block 13, second coupling pin 14, circular arc slide block 15, circular arc guide pad 16, bend pipe core 17, straight tube core 18, slide body 19, Angle Pin 20, slide block reinforced support 21, as shown in Fig. 2, Fig. 4, Fig. 5, Fig. 6.

Described mould die carrier structure assembly comprises upper clamping plate 1, impression bolster 2, core fixing plate 3, mould foot rest 4, thimble cover plate 5, thimble push plate 6, counterdie seat board 7, as shown in Figure 4.

Described mould molding assembly comprises core mold insert 8, die cavity mold insert 9, bend pipe core 17, straight tube core 18.

Described mould bend pipe assembly of loosing core comprises bend pipe and to loose core oil cylinder 10, oil cylinder tie rod 11, first coupling pin 12, center little pulling block 13, second coupling pin 14, circular arc slide block 15, circular arc guide pad 16, bend pipe core 17; Circular arc slide block 15 one end is provided with bend pipe core 17, and one end is by oil cylinder tie rod 11, first coupling pin 12, center little pulling block 13, second coupling pin 14, connect with bend pipe oil cylinder 10 of loosing core in addition; Bend pipe core 17, straight tube core 18 touch and pass as the conical surface touches the mode of wearing, as shown in Figure 5.

Described mould straight tube assembly of loosing core comprises straight tube core 18, slide body 19, Angle Pin 20, slide block reinforced support 21, as shown in Figure 6, Figure 7.

Described mold layout is that a mould goes out two chambeies, and running gate system adopts side to enter to water mode.

During real work, as shown in Figure 2, its motion operation principle is as follows:

1) injection moulding of side core-pulling die is complete, and after die sinking, cavity surface is the demoulding; Slide body 19 leading side under the drive of its cover half skew back guide pillar 20 is loosed core, and completes the core_pulling demoulding of side sky;

2) bend pipe position bend pipe of loosing core is loosed core oil cylinder 10 action, drives circular arc slide block 15 under the guiding of circular arc guide pad 16, to slide counterclockwise movement, thus is extracted out from product by bend pipe core 17, thus complete the core_pulling demoulding of product bend pipe position along arc groove;

3), after the inner bend pipe position of ejecting product, straight tube position core_pulling demoulding, injection machine push rod promotes thimble push plate 6, thus product ejects from core mold insert 8 by promotion thimble, so far, and the complete demoulding of product;

4) when resetting, bend pipe is loosed core the first action of oil cylinder 10, and drive circular arc slide block 15 to slide along arc groove and mobilely reset closed, be then mould when closing, side action sliders body 19 is pushed back reset, and last mould is completely closed, waits for the beginning of next injection cycle.

Specific embodiment described herein is only to the explanation for example of the present invention's spirit, those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims

1. a bent pipe injection die, comprise upper clamping plate (1), impression bolster (2), core fixing plate (3), mould foot rest (4), thimble cover plate (5), thimble push plate (6), counterdie seat board (7), core mold insert (8), die cavity mold insert (9), bend pipe is loosed core oil cylinder (10), oil cylinder tie rod (11), first coupling pin (12), the little pulling block in center (13), second coupling pin (14), circular arc slide block (15), circular arc guide pad (16), bend pipe core (17), straight tube core (18), slide body (19), Angle Pin (20), slide block reinforced support (21).

2., according to claim 1 bent pipe injection die, described mould die carrier structure assembly comprises upper clamping plate (1), impression bolster (2), core fixing plate (3), mould foot rest (4), thimble cover plate (5), thimble push plate (6), counterdie seat board (7).

3., according to claim 1 bent pipe injection die, described mould molding assembly comprises core mold insert (8), die cavity mold insert (9), bend pipe core (17), straight tube core (18).

4., according to claim 1 bent pipe injection die, described mould bend pipe assembly of loosing core comprises bend pipe and to loose core oil cylinder (10), oil cylinder tie rod (11), the first coupling pin (12), the little pulling block in center (13), the second coupling pin (14), circular arc slide block (15), circular arc guide pad (16), bend pipe core (17); Circular arc slide block (15) one end is provided with bend pipe core (17), and one end is by oil cylinder tie rod (11), the first coupling pin (12), the little pulling block in center (13), the second coupling pin (14), connect with bend pipe oil cylinder (10) of loosing core in addition; Bend pipe core (17), straight tube core (18) touch and pass as the conical surface touches the mode of wearing.

5., according to claim 1 bent pipe injection die, described mould straight tube assembly of loosing core comprises straight tube core (18), slide body (19), Angle Pin (20), slide block reinforced support (21).

6. according to claim 1 bent pipe injection die, described mold layout is that a mould goes out two chambeies, and running gate system adopts side to enter to water mode.