CN206154659U - Elastic ejection pin part - Google Patents

Abstract

The utility model provides an elastic ejection pin part, include moving clamp plate, movable mould board, movable mould benevolence, ejection bottom plate, locate ejecting pin face plate, elastic ejection pin, ejecting spring and the ejector pin that resets above the ejection bottom plate, elastic ejection pin one end locates that ejection bottom plate goes up and the other end runs through ejecting pin face plate and movable mould benevolence, elastic ejection pin's top branching is two thimble branches, and have elasticity between two thimble branches and open one's mouth, be located the pole body of semicircle top with the lower part at top thimble branch including, set up the product die cavity on the face of opening and shutting of semicircle top, the pole is as the conical rod body that reduces the pole footpath from top to bottom gradually, ejecting spring mounting is in the moving clamp plate slotted hole, and the cushion is installed to ejecting spring one end, and the other end and ejection bottom plate connect. The beneficial effects of the utility model are that: have simple structure, it is nimble convenient to use, the operating power consumption characteristics of hanging down.

Description

A kind of elastic top needle part

Technical field

The utility model is related to demoulding device of injection mold, specifically a kind of elastic top needle part.

Background technology

Injection mo(u)lding is to produce a kind of processing method used during some complex-shaped parts in batches.Refer specifically to be heated and melt The material of change injects die cavity by high pressure, Jing after cooling and solidifying, obtains formed products.Injection mold is a kind of work for producing plasthetics Tool, is also to confer to the instrument of plasthetics complete structure and accurate dimension.Injection mold is generally by dynamic model and cover half two parts group Into dynamic model is arranged on the moving die plate of injection (mo(u)lding) machine, and cover half is arranged on the fixed form of injection (mo(u)lding) machine.It is being injected into Dynamic model constitutes running gate system and die cavity with cover half closure during type, and dynamic model and cover half are separated to take out plastic products during die sinking.

At present when injection molding is carried out, after injection mo(u)lding is completed, in order to improve the demoulding efficiency and demoulding matter of product Amount, is often provided with special product stripping push pin device on mould, and product is driven by push pin device reaches The purpose of the demoulding, but find in actual use, presently used push pin device structure is complex, and flexible adjustment is not Foot, therefore flexibility and the reliability that push pin device is used is significantly limit, at the same time, when the power of front thimble equipment sets Standby mainly to drive by hydraulic air cylinder pressure, kinetic stability is relatively poor, is especially the pole when product and mould scratch Easily cause product structure to be damaged, and power transmission ratio is relatively low, it is so as to cause operation energy consumption higher therefore existing for this Shape, in the urgent need to developing a kind of elastic top needle part, to meet actually used needs.

Utility model content

The purpose of this utility model is to solve defect present in prior art, there is provided a kind of elastic top needle part, Simple structure, flexible and convenient to use, the low feature of operation energy consumption is another to have and good stability uniform to product ejection driving force, Effectively reliable power can be provided for product stripping.

To achieve these goals, the technical solution of the utility model is as follows：

A kind of elastic top needle part, including Bottom clamp plate, moving platen, mavable module core, Ejector Retainer Plate, located at Ejector Retainer Plate top Thimble panel, elastic thimble, ejector spring and reset push rod, described elastic thimble one end other end on Ejector Retainer Plate Through thimble panel and mavable module core, the top bifurcated of the elastic thimble is two thimble poles, is had between two thimble poles Flexible to dehisce, the thimble pole includes being located at the shaft of half dome main body with bottom at top, the folding of half dome main body Product die cavity is opened up on face, the shaft is the cone-shaped rod body that bar footpath is from top to bottom gradually reduced；The ejector spring is installed on In Bottom clamp plate slotted eye, ejector spring one end is provided with rubber cushion, and the other end and Ejector Retainer Plate connect.

Preferably, the elastic thimble and reset push rod are at least two groups.

Compared with prior art, the beneficial effects of the utility model are：It is flexible and convenient to use with simple structure, operation The low feature of energy consumption, it is another that there is and good stability uniform to product ejection driving force, realized to note using the elasticity of the body of rod itself Molding product ejection is threaded off, and so as to injecting products not cause any damage in itself, it is ensured that carry out excellent stripping process, is lifted and is produced Product qualification rate.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Wherein, 1, Bottom clamp plate；2nd, moving platen；3rd, mavable module core；4th, Ejector Retainer Plate；5th, thimble panel；6th, elastic thimble；7、 Ejector spring；8th, reset push rod；9th, thimble pole；10th, product die cavity；11st, rubber cushion.

Specific embodiment

To make to have a better understanding and awareness architectural feature of the present utility model and the effect reached, to compared with Good embodiment and accompanying drawing coordinates detailed description, is described as follows：

A kind of elastic top needle part, including Bottom clamp plate 1, moving platen 2, mavable module core 3, Ejector Retainer Plate 4, located at Ejector Retainer Plate The thimble panel 5 of 4 tops, elastic thimble 6, ejector spring 7 and reset push rod 8, described one end of elastic thimble 6 is located at Ejector Retainer Plate On 4 and the other end through thimble panel 5 and mavable module core 3, the top bifurcated of the elastic thimble 6 is two thimble poles 9, two Dehisce with elasticity between individual thimble pole 9, the thimble pole 9 includes being located at the shaft of half dome main body with bottom at top, Product die cavity 10 is opened up on the folding face of half dome main body, the shaft is the tapered rod that bar footpath is from top to bottom gradually reduced Body；The ejector spring 7 is installed in the slotted eye of Bottom clamp plate 1, and the one end of ejector spring 7 is provided with rubber cushion 11, the other end and thimble Base plate 4 connects.

The elastic thimble 6 and reset push rod 8 are at least two groups.

Elastic thimble 6 stretches through in the circular pilot hole opened up on mavable module core 3, and thimble 6 elastic first all stretches embedded dress In distribution, elasticity is caused to dehisce to close because the size of pilot hole is limited, two thimble poles 9 are affixed to form a full circle body of rod, And the upper end of the full circle body of rod has the integral product die cavity 10 that split is formed.Complete to carry out a point mould, bullet after injection and refrigerating work procedure Property thimble 6 ejected from the bottom to top simultaneously, the elasticity during gradually rising between two thimble poles 9 dehisces to be acted in elastic force Under slowly recover nature open configuration.Because the shaft of thimble pole 9 is diminishing cone-shaped rod body so that shaft is filled with mould There is clearance space between distribution, therefore the offer of gradually opening dehisced for elasticity in uphill process allows bit space.Until elastic top Pin 6 rises to extreme higher position, and elasticity dehisces to recover to maximum stretching degree, and then will by the ejection action of elastic thimble 6 Molded portion in product die cavity 10 is threaded off, and ensures the excellent stripping process of integral molded plastic product.

After die sinking, Injection Motor Template 2 pulls mould dynamic model part to retreat, and mold parting surface goes out to open, and mold cores lose The suppression to reset push rod 8 is gone, under the pushing of ejector spring 7, Ejector Retainer Plate 4 promotes elastic thimble 6 to retreat with dynamic model Paces ejection in the mavable module core 3 by product, product is stayed on mold cores mold insert, so as to complete mechanism's front mould ejection work( Energy；

During reset, during mold closing, core promotes reset push rod 8, compresses so as to oppress ejector spring 7, and top board base plate resets； Mould is closed, and waits the beginning of next injection cycle.

General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply principle of the present utility model, the utility model also has respectively on the premise of without departing from the utility model spirit and scope Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.The utility model is required Protection domain defined by appending claims and its equivalent.

Claims (2)

1. a kind of elastic top needle part, it is characterised in that：Including Bottom clamp plate, moving platen, mavable module core, Ejector Retainer Plate, located at top Thimble panel, elastic thimble, ejector spring and reset push rod above pin base plate, described elastic thimble one end is located at Ejector Retainer Plate Through thimble panel and mavable module core, the top bifurcated of the elastic thimble is two thimble poles, two thimbles for the upper and other end Dehisce with elasticity between pole, the thimble pole includes being located at the shaft of half dome main body with bottom at top, the semicircle Product die cavity is opened up on the folding face of top, the shaft is the cone-shaped rod body that bar footpath is from top to bottom gradually reduced；The ejection Spring is installed in Bottom clamp plate slotted eye, and ejector spring one end is provided with rubber cushion, and the other end and Ejector Retainer Plate connect.

2. elastic top needle part according to claim 1, it is characterised in that：The elastic thimble and reset push rod are at least Two groups.