CN203557642U - Mold for releasing interrupted thread by virtue of inclined sliding block - Google Patents

Abstract

The utility model discloses a mold for releasing an interrupted thread by virtue of an inclined sliding block. The mold consists of a moving mold seat plate, a push rod fixing plate, guide pillars, push rods, a stop pin, a core, an internal inclined sliding block, a fixed mold sleeve plate, a fixed mold seat plate, a fixed mold insert, a fixed mold core, a moving mold insert, a moving mold sleeve plate, a supporting plate, a reset rod, a push plate and a pouring gate sleeve, wherein the internal inclined sliding block (8) is in sliding clearance fit with the core (7); a first push rod (4) is in sliding clearance fit with the supporting plate (16); a second push rod (5) is in clearance fit with the supporting plate (16) and the core (7); the fixed mold insert (11) is arranged in a step hole of the fixed mold sleeve plate (9), is pressed by the fixed mold seat plate (10) and is fastened by virtue of screws. The mold has the advantages of firmness and reliability in motion, good pressure transmission and attractive products, and is suitable for being used as metal pressure casting and plastic injection molds.

Description

Angled-lift splits departs from the mould of intermittent screw thread

Technical field

The present invention relates to die cast metal mould and plastic injection mould moulding, is the mould that angled-lift splits departs from intermittent screw thread.

Background technology

At present, at mould, manufacture boundary, the demoulding for intermittent screw thread, owing to can not being designed to rotating stripping demoulding, therefore in the existing stage, be all to adopt hand ejection outside mould, it be before moulding by casting by movable whorl core with being manually arranged on mould, after moulding, movable whorl core ejects outside mould together with mould pushing-off mechanism with goods, then by manually utilizing the fixture of respective shapes and extractor that goods are taken off from the moving thread core that overflows outward at mould.In addition, after releasing movable whorl core and goods, then by being manually installed, second group of movable whorl core carry out moulding by casting.Though its mould structure is simple, it is convenient to manufacture, keep in repair, debug, and die cost is low, but its operating efficiency is extremely low, and labor strength is very big, and workman removes to install movable whorl core with hand, and safety can not get ensureing.On the other hand, in order to guarantee production efficiency, therefore when design, movable whorl core is at least more than four groups, therefore during due to every group of movable whorl core of machining and heat treatment, all can cause the size of movable whorl core inconsistent, every group of movable whorl core moulding product size is out also inconsistent.Bring very large difficulty to the assembling of follow-up goods.Again on the one hand because goods are manually separated in mould external application, in separation process, there is very big a part of products appearance can damaged, or scrap screw thread and cause goods not use.In order to overcome the defect of above-mentioned mould, spy provides following a kind of mould to solve above problem.

Summary of the invention

The present invention is to provide the mould that angled-lift splits departs from intermittent screw thread, and it is that in adopting, angled-lift splits is loosed core and doubles as ejecting mechanism.The interior angled-lift splits of several sections of internal threads of moulded products inside utilizes inclined guide groove on dynamic mould core to loose core to the inside, realizes the demoulding of goods internal thread.During die sinking, goods are greater than the package power to cover half to the package power of dynamic model, therefore goods are deviate from cover half die cavity smoothly, stay in dynamic model one side.Die sinking is after certain distance, and in molding machine push rod promotes, angled-lift splits, along the guide runner side core-pulling of core, is realized and departed from intermittent screw thread, simultaneously by outside goods launch mode.Its action is solid and reliable, and pressure transmission is good, and quality of item is graceful, and hand labor intensity is little.Angled-lift splits departs from the mould of intermittent screw thread, has solved operating efficiency extremely low, and hand labor intensity is very big, and workman removes installation mold movable whorl core with hand, and safety can not get the problem ensureing.On the other hand, in order to guarantee production efficiency, therefore when design, movable whorl core is at least more than four groups, therefore during due to every group of movable whorl core of machining and heat treatment, all can cause the size of movable whorl core inconsistent, every group of movable whorl core moulding product size is out also inconsistent.To the assembling of follow-up goods, bring the problem of very large difficulty.Again on the one hand because goods are manually separated in mould external application, in separation process, there is very big a part of products appearance can damaged, or scrap screw thread and cause the obsolete problem of goods.Angled-lift splits departs from the mould of intermittent screw thread, it is characterized in that: interior angled-lift splits (8) coordinates with core (7) glade plane space, push rod (4) coordinates with support plate (16) glade plane space, the second push rod (5) and support plate (16), core (7) matched in clearance, after fixed die insert (11) is arranged in the stepped hole of cover half cage plate (9), use again top clamping plate (10) compress and connect with screw fastening, fixed mold (12) becomes to be slidably matched with the hole on fixed die insert (11), after moving die insert (14) and dynamic model cage plate (15) matched in clearance, with support plate (16), compress and use again screw fastening, core (7) coordinates with moving die insert (14) glade plane space, after the first guide pillar (3) and support plate interference fit, be slidably matched with the first guide pin bushing being arranged in ejector pin retaining plate (2) and push pedal (18) again, the 3rd push rod (19) and support plate (16), the hole of inserting on (20) is slidably matched, sprue bush (21) is slidably matched with cover half cage plate (9) and top clamping plate, the second guide pillar (13) is slidably connected with the second guide pin bushing being arranged on dynamic model cage plate (15).

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the present invention is further described

Shown in figure:

Fig. 1 is the assembly relation of interior angled-lift splits and core and the cutaway view of each part of mould

Fig. 2 is the cutaway view of mould gate part and ejecting mechanism

Fig. 3 is the top view of mould

In figure, numeral number represents respectively:

1---Bottom clamp plate 2---ejector pin retaining plate 3---the first guide pillar

4---the first push rod 5---second push rod 6---backing pins

7---core 8---interior angled-lift splits 9---cover half cage plates

10---top clamping plate 11---fixed die insert 12---fixed molds

13---the second guide pillar 14---moving die insert 15---dynamic model cage plates

16---support plate 17---release link 18---push pedals

19---the 3rd push rod 20---inserts 21---sprue bush

The specific embodiment:

Shown in figure, be the mould that angled-lift splits departs from intermittent screw thread, this mould is that a mould goes out two goods, adopts eccentric cast gate, cross gate is located on two goods center lines, and cast gate is arranged on product enclosure limit, and first liquation fills place, dark chamber, gas is pressed to die joint, from overflow gas extraction system, get rid of.Dynamic model and cover half are by four the second guide pillars (13) and the second guide pin bushing guiding, and while guaranteeing matched moulds, dynamic model, cover half align; The reciprocating motion of push pedal relies on the first guide pillar (3) and the first guide pin bushing guiding.For the first push rod (4), the second push rod (5), the 3rd push rod (19) and interior angled-lift splits (8) are accurately put in place, 4 adjustable bolts are installed on Bottom clamp plate (1), by adjusting bolt height, determine the exact position of push pedal.The angled-lift splits double ejecting mechanism of loosing core in goods adopt.The interior angled-lift splits (8) of several sections of screw threads of moulded products inside utilizes the upper inclined guide groove of core (7) to loose core to the inside and realizes the demoulding of goods internal thread.During matched moulds, release link promotes push pedal (18), and push pedal (18) drives the first push rod (4), the second push rod (5), the 3rd push rod (19) to reset, and in fixed mold (12) promotion simultaneously, angled-lift splits (8) resets.During die sinking, goods are greater than the package power to cover half to the package power of dynamic model, therefore goods are pulled out cover half die cavity (11), stay on the core (7) and interior angled-lift splits (8) that is installed on dynamic model one side.Regularly, lathe push rod, by push pedal (18), drives the first push rod (4) to promote interior angled-lift splits (8) along moving side core-pulling in the inclined guide groove on core (7), realizes and departs from intermittent screw thread, goods is released to core (7) simultaneously in die sinking to.In this process, the second push rod (5) is pushing out product together with interior angled-lift splits (8), and after completing with pushing out product wait loosing core, manipulator just enters mould die sinking space and presss from both sides out goods.

Claims (1)

1. angled-lift splits departs from the mould of intermittent screw thread, it is characterized in that: interior angled-lift splits (8) coordinates with core (7) glade plane space, push rod (4) coordinates with support plate (16) glade plane space, the second push rod (5) and support plate (16), core (7) matched in clearance, fixed die insert (11) uses top clamping plate (10) compress and connect with screw fastening after being arranged in the stepped hole of cover half cage plate (9) again, fixed mold (12) becomes to be slidably matched with the hole on fixed die insert (11), after moving die insert (14) and dynamic model cage plate (15) matched in clearance, with support plate (16), compress and then use screw fastening, core (7) coordinates with moving die insert (14) glade plane space, after the first guide pillar (3) and support plate interference fit, be slidably matched with the first guide pin bushing being arranged in ejector pin retaining plate (2) and push pedal (18) again, the 3rd push rod (19) and support plate (16), the hole of inserting on (20) is slidably matched, sprue bush (21) is slidably matched with cover half cage plate (9) and top clamping plate, the second guide pillar (13) is slidably connected with the second guide pin bushing being arranged on dynamic model cage plate (15).

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