CN208801564U

CN208801564U - A kind of Four-slider inner core pulling synchronization demoulding mechanism

Info

Publication number: CN208801564U
Application number: CN201821349873.3U
Authority: CN
Inventors: 文本辉
Original assignee: HONGLI TECHNOLOGY (SUZHOU) Co Ltd
Current assignee: HONGLI TECHNOLOGY (SUZHOU) Co Ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2019-04-30
Anticipated expiration: 2028-08-21

Abstract

The utility model proposes a kind of synchronous demoulding mechanisms of Four-slider inner core pulling; including bottom plate, ejector retainner plate, backing plate, rear pattern plate, front template, hot runner manifold and the upper mounted plate set gradually from bottom to top; shovel base is fixedly installed on the backing plate, there are four sliding blocks for setting on the rear pattern plate；The utility model closes the common shovel basigamy of four sliding blocks and one, core-pulling device is surrounded jointly, and utilize angular compliance different between each sliding block and the shovel base, it realizes and successively moves between each sliding block, it avoids using oil hydraulic cylinder, core pulling action can be realized, both increased the space of die cavity, in turn avoid risk of the product by oil pollution.

Description

A kind of Four-slider inner core pulling synchronization demoulding mechanism

Technical field

The utility model relates to injection mold fields, more particularly to a kind of synchronous demoulding mechanism of Four-slider inner core pulling.

Background technique

In current injection mold industry, when needing the synchronous demoulding of multiple core pullings to realize injection molding, often An outer oil hydraulic cylinder of adding is placed in mould to realize core pulling action；Following problem can be brought using multiple oil hydraulic cylinders:

(1) use of compressing cylinder has the risk of oil leak that can generate greasy dirt to product, and product defect rate is higher；

(2) use of compressing cylinder causes die cavity less due to the space of injection molding machine, is not able to satisfy client's capacity requirements.

Summary of the invention

A kind of in order to solve the above problems, the utility model proposes the synchronous demoulding mechanism of Four-slider inner core pulling.

The main contents of the utility model include:

A kind of Four-slider inner core pulling synchronization demoulding mechanism, including the bottom plate, ejector retainner plate, pad set gradually from bottom to top Plate, rear pattern plate, front template, hot runner manifold and upper mounted plate are provided with hot runner system, the preceding mould on the hot runner manifold Injection die cavities are provided on plate, the hot runner passageway of the hot runner system is connected with the injection die cavities；On the backing plate It is fixedly installed shovel base；There are four sliding blocks for fixed setting on the rear pattern plate；The shovel base and four sliding block phase interworkings It closes and constitutes core-pulling device, the core-pulling device is arranged in the injection die cavities；The shovel base includes four cooperation inclined-planes, molding When, four sliding blocks are equipped on four cooperation inclined-planes；Wherein, four cooperation inclined-planes and the shovel The angle of the upper surface of base in obtuse angle, and the edge of four sliding blocks be provided with for shaped article back-off concave face.

Preferably, four sliding blocks include two the first sub- sliding blocks and two the second sub- sliding blocks；Four cooperations are oblique Face includes symmetrically arranged two first cooperation inclined-planes and symmetrically arranged two second cooperations inclined-plane；The first sub- sliding block is set It sets on first cooperation inclined-plane, the second sub- sliding block setting is on second cooperation inclined-plane；First cooperation is oblique The gradient in face is less than the gradient on second cooperation inclined-plane.

Preferably, the angle of the upper surface of the first cooperation inclined-plane and the shovel base is 92 °；Second cooperation inclined-plane Angle with the upper surface of the shovel base is 96 °.

Preferably, the first mating groove is offered on first cooperation inclined-plane, second cooperation offers on inclined-plane Second mating groove is provided with the first fitting projection on the first sub- sliding block, and first fitting projection is matched with described first Groove is closed to be adapted；The second fitting projection is provided on the second sub- sliding block, second fitting projection is matched with described second Groove is closed to be adapted.

Preferably, the shovel base center offers cold water road, and the cold water road is connected with external cold water inlet.

The utility model has the beneficial effects that: the utility model proposes a kind of synchronous ingot strippers of Four-slider inner core pulling Structure closes the common shovel basigamy of four sliding blocks and one, surrounds core-pulling device jointly, and utilize between each sliding block and the shovel base not With angular compliance, realize and successively move between each sliding block, avoid that core pulling action can be realized, both increased using oil hydraulic cylinder The space of die cavity in turn avoids risk of the product by oil pollution.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model shaped article；

Fig. 2 is the overall structure diagram of the utility model；

Fig. 3 is the schematic top plan view of the utility model；

Fig. 4 is the cross-sectional view of the part B-B in Fig. 3；

Fig. 5 is the cross-sectional view of the part C-C in Fig. 3.

Specific embodiment

The technical solution protected below in conjunction with attached drawing to the utility model illustrates.

Fig. 1 is please referred to Fig. 5.The utility model proposes a kind of synchronous demoulding mechanisms of Four-slider inner core pulling, from bottom to top Including the bottom plate 10 set gradually, ejector retainner plate 11, backing plate 12, rear pattern plate 13, front template 14, hot runner manifold 15 and upper solid Fixed board 16；The wherein bottom plate 10, ejector retainner plate 11, backing plate 12, rear pattern plate 13 constitute lower die；The front template 14, hot-fluid Guidance tape 15 and upper mounted plate 16 constitute upper mold, and in the present embodiment, the lower die is dynamic model, and the upper mold is cover half.

Injection die cavities, setting in the hot runner manifold 15 are provided in the front template 14 in one of the embodiments, There is hot runner system, wherein the hot-fluid deferent of hot runner system is connected with the injection die cavities, and plastic material is passed through institute Hot-fluid deferent is stated to inject in the injection die cavities；Meanwhile core-pulling device is provided in the injection die cavities, the core-pulling device packet Shovel base 100 and four sliding blocks are included, and the surrounding of the shovel base 100, specifically, the shovel base is arranged in four sliding blocks 100 include there are four cooperation inclined-plane, and in molding, four sliding blocks are adapted with four cooperation inclined-planes, i.e., the described shovel Base 100 can drive four sliding blocks simultaneously；The shovel base 100 is fixed on the backing plate 12；And four sliding blocks are solid It is fixed to be arranged on the rear pattern plate, and the edge of four sliding blocks is additionally provided with the concave face for shaped article back-off, Fig. 1 The schematic diagram of the product using the utility model injection molding is given, the concave of shaped article is provided on four sliding blocks Face, with the back-off structure on shaped article.

Wherein, the angles of the shovel four of the base 100 cooperation inclined-planes and the upper surface for shoveling base 100 in obtuse angle, more Body, four cooperation inclined-planes include two symmetrically arranged first cooperation inclined-planes 110 and two symmetrically arranged second Cooperate inclined-plane 120, it is preferred that the included angle of the first cooperation inclined-plane 110 and shovel 100 upper surface of base is 92 °, described The included angle of the upper surface of second cooperation inclined-plane 120 and the shovel base 100 is 96 °；Likewise, four sliding blocks include two A first sub- sliding block 210 and two the second sub- sliding blocks 220, the first sub- sliding block 210 and the first cooperation 110 phase of inclined-plane are suitable Match, and the second sub- sliding block 220 is adapted with second cooperation inclined-plane 120.

It can be seen from the above, the fit angle of the first sub- sliding block 210 and the shovel base is less than the described second sub- sliding block 220 It is less than the inclination on second cooperation inclined-plane 120 with the fit angle of the shovel base namely the gradient on the first cooperation inclined-plane 110 Degree；To which when the shovel base 100 is moved downward relative to four sliding blocks, four sliding blocks are with different movement velocitys Successively move inward, to realize steady core pulling.

The first mating groove 111 is offered on first cooperation inclined-plane 110 in one of the embodiments, described the The second mating groove 121 is offered on two cooperation inclined-planes 120, correspondingly, the first sub- sliding block 210 and 100 phase of shovel base It is provided with the first fitting projection 211 on the side of adaptation, the second sub- sliding block 220 side compatible with the shovel base 100 It is equipped with the second fitting projection 221, first fitting projection 211 is adapted with first mating groove 111；Described second Fitting projection 221 is adapted with second mating groove 121；As shown in Fig. 2, under molding state, two first sons Sliding block 210 and two second sub- sliding blocks 220 are wrapped in the surrounding of the shovel base 100, surround the shape of approximate cylindrical body jointly Shape cooperates the injection die cavities, to form product as shown in Figure 1.

Cold water road 300, the cold water road 300 and outside are additionally provided in the shovel base 100 in one of the embodiments, Cold water inlet be connected, to inject cold water.

The course of work of the utility model is as follows: when die sinking, the lower die is moved downward, described in the shovel base and four The core-pulling device of sliding block composition also moves downwardly together, thimble after lower die moves to the process of setting, on the ejector retainner plate The rear pattern plate is pushed to separate with the backing plate, so that the shovel base is located remotely from each other with four sliding blocks, i.e., the described shovel base phase The sliding block described for four moves downward, meanwhile, four sliding blocks due to lose it is described shovel base pressuring action and inwardly Movement, to realize core pulling action.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims

1. a kind of synchronous demoulding mechanism of Four-slider inner core pulling, which is characterized in that including set gradually from bottom to top bottom plate, Ejector retainner plate, backing plate, rear pattern plate, front template, hot runner manifold and upper mounted plate are provided with hot flow path system on the hot runner manifold It unites, is provided with injection die cavities on the front template, the hot runner passageway of the hot runner system is connected with the injection die cavities； Shovel base is fixedly installed on the backing plate；There are four sliding blocks for fixed setting on the rear pattern plate；Described in the shovel base and four Sliding block, which cooperates, constitutes core-pulling device, and the core-pulling device is arranged in the injection die cavities；The shovel base includes four and matches Inclined-plane is closed, when molding, four sliding blocks are equipped on four cooperation inclined-planes；Wherein, four cooperations Inclined-plane and it is described shovel base upper surface angle in obtuse angle, and the edge of four sliding blocks be provided with for shaped article be buckled to Concave face.

2. a kind of Four-slider inner core pulling according to claim 1 synchronizes demoulding mechanism, which is characterized in that four sliding blocks Including two the first sub- sliding blocks and two the second sub- sliding blocks；Four cooperation inclined-planes include symmetrically arranged two first cooperations Inclined-plane and symmetrically arranged two second cooperations inclined-plane；The first sub- sliding block setting is described on first cooperation inclined-plane Second sub- sliding block setting is on second cooperation inclined-plane.

3. a kind of Four-slider inner core pulling according to claim 2 synchronizes demoulding mechanism, which is characterized in that first cooperation The angle of the upper surface of inclined-plane and the shovel base is 92 °；The second cooperation inclined-plane and the angle of upper surface for shoveling base are 96°。

4. a kind of Four-slider inner core pulling according to claim 2 synchronizes demoulding mechanism, which is characterized in that first cooperation The first mating groove is offered on inclined-plane, second cooperation offers the second mating groove, the first sub- sliding block on inclined-plane On be provided with the first fitting projection, first fitting projection is adapted with first mating groove；The second sub- sliding block On be provided with the second fitting projection, second fitting projection is adapted with second mating groove；First cooperation is oblique The gradient in face is less than the gradient on second cooperation inclined-plane.

5. a kind of Four-slider inner core pulling according to claim 1 synchronizes demoulding mechanism, which is characterized in that the shovel base center Cold water road is offered, the cold water road is connected with external cold water inlet.