CN210174116U - Space-saving slider spring guide sleeve structure - Google Patents

Abstract

The utility model provides a space-saving slider spring uide bushing structure, including the front mould, back mould and slider, the slider sets up between front mould and back mould, front mould right side lower extreme is fixed with oblique guide pillar, the guide pillar lower extreme passes the slider right-hand member to one side, the guide pillar drives the slider through opening and shutting of front mould and back mould to remove to one side, the slider left side is equipped with the blind hole, be equipped with the spring in the blind hole, the spring right-hand member is hugged closely the right-hand member in the blind hole, the spring outside is equipped with the uide bushing, the spring left end is hugged closely the left end in the uide bushing, the uide bushing left end outside is hugged closely with the back mould, the uide bushing stretches out the. By utilizing the structure of the guide sleeve of the slide block spring, the guide sleeve and the spring are positioned at the same side, the thread processing of installing the guide rod on the side surface of the die core is cancelled, and the processing cost is saved; the guide sleeve is sleeved at one end of the spring, and the length of the guide sleeve and the length of the spring are overlapped, so that the occupation of space is reduced to the maximum extent.

Description

Space-saving slider spring guide sleeve structure

Technical Field

The utility model relates to the field of molds, especially, relate to a space-saving slider spring uide bushing structure.

Background

The slide block is one of the common structures of the injection mold, mainly solves the problem of local back-off characteristic forming and demolding inconsistent with the normal mold opening direction on a plastic product, and generally adopts a mechanical slide block lock for positioning after the mold opening of the slide block. However, when the slider was in mould day side position, received self size's influence, the phenomenon that can't reliably fix a position can appear in mechanical slider lock, and common solution is that increase the spring is supplementary, for preventing to take place crooked because of the draw-bar stroke length makes draw ratio grow, the rigidity reduction of spring, increases a guide bar simultaneously at the spring hole, and the one end and the mould benevolence side of guide bar are connected fixedly. This conventional structure has two disadvantages: firstly, the threaded hole on the side surface of the die core needs to be machined by using side milling equipment, so that the machining cost is high; secondly, a large installation space is required, which results in a large size of the whole die, and even one specification is increased, which increases the cost of the die and causes poor economy. For automobile ornament products, the back-off characteristics are usually different from several to tens of the back-off characteristics, the application of the integrity of the structure is restricted due to insufficient space, and once a guide rod is cancelled, the spring is easy to bend and deform, so that the slider is positioned and fails, the mold is maintained frequently, the service life of the mold is directly influenced, and the requirement of batch injection molding production cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slider spring uide bushing structure who saves space, the spring outside sets up the uide bushing, and the uide bushing leads the spring, and uide bushing length overlaps with spring itself, no longer needs spring length itself to add the length of uide bushing, has solved and has used the guide bar processing cost height, the big problem of installation space.

The utility model provides a space-saving slider spring uide bushing structure, including the front mould, back mould and slider, the slider sets up between front mould and back mould, front mould right side lower extreme is fixed with oblique guide pillar, the guide pillar lower extreme passes the slider right-hand member to one side, the guide pillar drives the slider through opening and shutting of front mould and back mould to remove to one side, the slider left side is equipped with the blind hole, be equipped with the spring in the blind hole, the spring right-hand member is hugged closely the right-hand member in the blind hole, the spring outside is equipped with the uide bushing, the spring left end is hugged closely the left end in the uide bushing, the uide bushing left end outside is hugged closely with the back mould, the uide bushing stretches out the.

The further improvement lies in that: the length of the guide sleeve is 1-2mm shorter than the fully compressed length of the spring.

The further improvement lies in that: the guide sleeve is a steel part.

The utility model has the advantages that: by utilizing the structure of the guide sleeve of the slide block spring, the guide sleeve and the spring are positioned at the same side, the thread processing of installing the guide rod on the side surface of the die core is cancelled, and the processing cost is saved; the uide bushing overlaps in the one end of spring, and the two length overlaps, and the maximize has reduced the occupation in space, provides effective, complete structural scheme for the stable location of especially mould inboard side position slider in the finite space, is favorable to guaranteeing the mould life-span, reduces mould cost and maintenance cost, promotes the rational use of the board of moulding plastics, realizes moulding plastics production's cost reduction increase.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Wherein: 1-front die, 2-rear die, 3-slide block, 4-inclined guide post, 5-blind hole, 6-spring and 7-guide sleeve.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in detail with reference to the following embodiments, which are only used for explaining the present invention and do not limit the protection scope of the present invention.

As shown in fig. 1, this embodiment provides a space-saving slider spring uide bushing structure, including front mould 1, back mould 2 and slider 3, slider 3 sets up between front mould 1 and back mould 2, 1 right lower extreme of front mould is fixed with oblique guide pillar 4, 4 lower extremes of oblique guide pillar pass slider 3 right-hand members, oblique guide pillar 4 drives slider 3 through opening and shutting of front mould 1 and back mould 2 and removes, slider 3 left side is equipped with blind hole 5, be equipped with spring 6 in the blind hole 5, the right-hand member is hugged closely at blind hole 5 at spring 6 right-hand member, spring 6 outside is equipped with uide bushing 7, the left end is hugged closely at uide bushing 7 at the left end, the uide bushing 7 left end outside is hugged closely with back mould 2 during the die sinking, uide bushing 7 stretches out blind hole 5 along with spring 6, uide bushing 7 is pressed back in the blind hole. The guide sleeve 7 is 2mm shorter than the fully compressed length of the spring 6. The guide sleeve 7 is a steel part.

When the mold is opened, the inclined guide post 4 drives the slide block 3 to move right, the guide sleeve 7 extends out of the blind hole 5 along with the extension of the spring 6, the left end of the guide sleeve 7 is kept in contact with the side surface of the rear mold 2, and the right end of the guide sleeve 7 prevents the spring 6 from bending; when the sliding block 3 moves right to the right, the prepressing elastic force of the spring 6 assists the positioning of the sliding block 3, and meanwhile, the guide sleeve 7 still has one third of the length left in the blind hole 5 of the sliding block 3. During die assembly, the inclined guide post 4 drives the slide block 3 to move left, and the guide sleeve 7 and the spring 6 are completely pressed into the blind hole 5 of the slide block 3 under the action of the die assembly force until the slide block 3 is die assembled. The guide sleeve 7 is sleeved outside the spring 6, the length of the guide sleeve is overlapped with the length of the spring 6, the length of the spring 6 and the length of the guide rod are not needed any more, the guide sleeve can be implemented in a limited space, the model number of a die set does not need to be increased, the control cost is low, meanwhile, lateral processing equipment is not needed, and equipment investment is reduced.

Claims (3)

1. The utility model provides a space-saving slider spring uide bushing structure, includes front mould (1), back mould (2) and slider (3), its characterized in that: slider (3) set up between front mould (1) and back mould (2), front mould (1) right side lower extreme is fixed with oblique guide pillar (4), slider (3) right-hand member is passed to oblique guide pillar (4) lower extreme, oblique guide pillar (4) drive slider (3) through opening and shutting of front mould (1) and back mould (2) and remove, slider (3) left side is equipped with blind hole (5), be equipped with spring (6) in blind hole (5), spring (6) right-hand member is hugged closely right-hand member in blind hole (5), spring (6) outside is equipped with uide bushing (7), left end in uide bushing (7) is hugged closely to spring (6) left end, uide bushing (7) during the die sinking hug bushing (5) stretch out along with spring (6), uide bushing (7) are pressed back in blind hole (5) along with spring (6) during the compound die.

2. A space-saving slider spring guide housing construction as claimed in claim 1, wherein: the length of the guide sleeve (7) is 1-2mm shorter than the fully compressed length of the spring (6).

3. A space-saving slider spring guide housing construction as claimed in claim 1, wherein: the guide sleeve (7) is a steel part.

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