CN216832032U - Injection mold with linkage core-pulling mechanism - Google Patents

Abstract

The utility model discloses an injection mold with mechanism of loosing core in linkage, including the movable mould subassembly, be located the cover half subassembly and the linkage mechanism of loosing core of movable mould subassembly below, the linkage mechanism of loosing core includes oblique guide pillar, main sliding block, the first subassembly and the second subassembly of loosing core, the first subassembly of loosing core with the movable mould subassembly is connected, the second loose core the subassembly with the main sliding block is connected, movable mould subassembly, cover half subassembly, main sliding block, the first subassembly and the second of loosing core are loosed core the subassembly and are enclosed and close and form the mould die cavity, oblique guide pillar one end with the movable mould subassembly is connected, the main sliding block be equipped with oblique guide pillar other end complex guide hole to one side, the transversal waist of personally submitting of guide hole to one side appears. The utility model discloses injection mold with linkage mechanism of loosing core, its linkage mechanism of loosing core simple structure, reasonable in design compactness can realize that first subassembly, the second of loosing core is loosed core respectively around the subassembly, compares in the hydro-cylinder side and takes out, and its is with low costs, and can effectively reduce the mould volume.

Description

Injection mold with linkage core-pulling mechanism

Technical Field

The utility model relates to an injection mold technical field particularly, relates to an injection mold with mechanism of loosing core in linkage.

Background

In the injection mold, if a hole or a groove is formed in the side surface of an injection molding part and the inner wall of the hole or the groove is an inclined surface or a step surface, the injection mold needs to be provided with a side pulling structure to realize mold opening, and different holes or grooves are usually not coaxial, so that core pulling cannot be simultaneously performed and core pulling is performed respectively in the front and at the back. The existing side-pulling structure is generally that a side core-pulling sliding block is arranged in a movable mould plate, a side-pulling oil cylinder which is obliquely arranged is arranged on the outer wall of the movable mould plate, and a piston rod of the oil cylinder drives the side core-pulling sliding block to be pulled out for mould opening. The side-pulling structure has the following disadvantages: the oil cylinder is adopted for side pumping, so that the manufacturing cost of the die is improved; the oil cylinder is arranged on the outer wall of the die, so that the size of the die is increased; when a plurality of non-coaxial holes or grooves are formed, a plurality of side pumping oil cylinders need to be correspondingly arranged, and the cost and the size of the die are further increased.

In view of the above, the inventor of the present application invented an injection mold with a linked core-pulling mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a side is taken out simple structure and reasonable in design, simultaneously can effectively reduce cost and mould volume's injection mold with linkage mechanism of loosing core.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an injection mold with mechanism of loosing core in linkage, includes the movable mould subassembly, is located the cover half subassembly and the mechanism of loosing core in linkage below the movable mould subassembly, the mechanism of loosing core in linkage includes oblique guide pillar, slider, the first subassembly and the second of loosing core and looses the subassembly, the first subassembly of loosing core with the movable mould subassembly is connected, the second loose core the subassembly with the slider is connected, movable mould subassembly, cover half subassembly, slider, the first subassembly of loosing core and second loose core the subassembly and enclose and close and form the mould die cavity, guide pillar one end to one side with the movable mould subassembly is connected, the slider be equipped with oblique guide hole of guide pillar other end complex to one side, the transversal waist shape of personally submitting of guide hole to one side.

Further, the inclined guide post inclines downwards from the inner side to the outer side of the die, and the cross section of the inclined guide hole is a waist-shaped hole extending from the inner side to the outer side of the die.

Further, the first core pulling assembly comprises a driving piece and an inclined sliding block, one end of the driving piece is connected with the movable die assembly, a driving inclined plane is arranged at the other end of the driving piece, and the inclined sliding block is provided with a driven inclined plane matched with the driving inclined plane.

Further, the inclined slide block is inclined upwards from the inner side to the outer side of the mold, and the driving inclined plane is inclined downwards from the inner side to the outer side of the mold.

Further, the main sliding block is provided with a first inclined sliding groove matched with the inclined sliding block to slide.

Furthermore, the top end notch of the first inclined sliding groove is provided with a limiting block, the inclined sliding block is provided with a limiting step matched with the limiting block, and when the inclined sliding block moves to the limiting step and is clamped with the limiting block, the driving piece can be separated from the inclined sliding block.

Further, the second core pulling assembly comprises an inclined top, a spring and a fixed rod, the inclined top, the spring and the fixed rod are horizontally arranged, the main sliding block is provided with a second inclined sliding groove matched with the inclined top to slide, the fixed rod is fixed in the second inclined sliding groove, one end of the spring is abutted to the end portion, facing the outer side of the mold, of the inclined top, and the other end of the spring is abutted to the fixed rod.

Furthermore, the lateral wall of oblique top is equipped with a gag lever post, main slider corresponds and is equipped with the gliding spacing spout of matching the gag lever post.

Further, the number of the core pulling assemblies is two.

After the technical scheme is adopted, compared with the prior art, the utility model, have following advantage:

the utility model discloses injection mold with linkage mechanism of loosing core, its linkage mechanism of loosing core simple structure, reasonable in design compactness can realize that first subassembly, the second of loosing core is loosed core respectively around the subassembly, compares in the hydro-cylinder side and takes out, and its is with low costs, and can effectively reduce the mould volume.

Drawings

FIG. 1 is a schematic view of a product injection molded by an injection mold according to an embodiment of the present invention;

FIG. 2 is a schematic view of the mold opening state of the injection mold according to the embodiment of the present invention;

FIG. 3 is a perspective view of the linkage core-pulling mechanism according to the embodiment of the present invention;

FIG. 4 is a perspective view of another perspective of the linkage core-pulling mechanism according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view of the first core pulling assembly along the sliding direction of the oblique slider according to the embodiment of the present invention;

FIG. 6 is a schematic view of a second core pulling assembly according to an embodiment of the present invention;

fig. 7 is a sectional view of the second core pulling assembly along one of the slanted ejecting sliding directions according to the embodiment of the present invention.

Description of reference numerals:

10-a movable mould component, wherein,

20-a fixed die assembly, wherein,

30-a linkage core-pulling mechanism,

31-an inclined guide post which is arranged on the upper part of the frame,

32-main sliding block, 321-inclined guide hole, 322-first inclined sliding groove, 323-limiting block, 324-second inclined sliding groove, 325-limiting sliding groove,

33-first loose core component, 331-driving piece, 3311-driving inclined plane, 332-inclined sliding block, 3321-driven inclined plane, 3322-limit step,

34-a second core-pulling assembly, 341-an inclined top, 342-a spring, 343-a fixed rod, 344-a limiting rod,

40-the step of preparing the product,

part 41-A, part 42-B.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

With reference to fig. 1 to 7, the utility model discloses an injection mold with linkage mechanism of loosing core 30, including movable mould subassembly 10, be located the cover half subassembly 20 and the linkage mechanism of loosing core 30 of movable mould subassembly 10 below, wherein, cover half subassembly 20 is fixed motionless, and movable mould subassembly 10 is driven by the injection molding machine, and at the in-process of die sinking, movable mould subassembly 10 keeps away from (the drawing is upwards keeping away from) cover half subassembly 20 gradually, and at the in-process of compound die, movable mould subassembly 10 is close to (the drawing is downwards) cover half subassembly 20 gradually.

The linkage core pulling mechanism 30 includes an inclined guide post 31, a main slide block 32, a first core pulling assembly 33 and a second core pulling assembly 34, wherein the first core pulling assembly 33 and the second core pulling assembly 34 respectively correspond to the inner wall of a hole or the inner wall of a groove on the side of the molded product 40. First loose core subassembly 33 with movable mould subassembly 10 is connected, second loose core subassembly 34 with main slider 32 is connected, movable mould subassembly 10, cover half subassembly 20, main slider 32, first loose core subassembly 33 and second loose core subassembly 34 enclose and close and form the mould die cavity, oblique guide pillar 31 one end with movable mould subassembly 10 is connected, main slider 32 be equipped with oblique guide hole 321 of the other end complex of oblique guide pillar 31, the waist shape is personally submitted to oblique guide hole 321's cross section. Specifically, the inclined guide post 31 is inclined downward from the inner side to the outer side of the mold, and the cross section of the inclined guide hole 321 is a kidney-shaped hole extending from the inner side to the outer side of the mold.

When the movable mold assembly 10 is separated from the fixed mold assembly 20 and the mold is opened, the first core pulling assembly 33 is separated from the product 40 along with the movement of the movable mold assembly 10, and the side pulling of the first core pulling assembly 33 is completed. Because the inclined guide hole 321 is a waist-shaped hole, in this process, the inclined guide post 31 moves along the inclined guide hole 321 of the main slider 32 (when the mold is closed, the inclined guide post 31 is fitted to the inner wall of the inclined guide hole 321), and the main slider 32 is not moved. When the side pulling of the first core pulling assembly 33 is completed, after the inclined guide post 31 contacts with the inner wall of the outer side of the inclined guide hole 321, the movable mold assembly 10 continues to move in the direction away from the fixed mold assembly 20, the main slider 32 slides to the outer side of the mold under the matching of the inclined guide post 31 and the inclined guide hole 321 to open the mold, and the second core pulling assembly 34 connected with the main slider 32 also moves along with the sliding of the main slider 32 and finally breaks away from the product 40, so that the side pulling of the main slider 32 and the second core pulling assembly 34 is realized. Finally, the product 40 is ejected by the ejector plate in the stationary mold assembly 20, thereby achieving the demolding of the product 40. Thus, the main sliding block 32 and the second core pulling assembly 34 are used for core pulling in a delayed manner, core pulling of the first core pulling assembly 33 and core pulling of the second core pulling assembly 34 can be achieved sequentially and respectively, the whole linkage core pulling mechanism 30 is simple in structure and reasonable in design, compared with the existing oil cylinder side pulling, the cost is low, and the whole size of the mold is small.

It will be understood by those skilled in the art that the respective core back directions of the core back assemblies in a set of injection molds may be different, and may be perpendicular, parallel or intersecting, depending on the product 40 to be injection molded.

In the present embodiment, an injection mold with a linked core-pulling mechanism 30 for injection molding a product 40 as shown in fig. 1 is specifically disclosed, the side surface of the product 40 has an a portion 41 and a B portion 42 which need to be molded by a core-pulling component, both the a portion 41 and the B portion 42 have a step surface, wherein the a portion 41 is an outer step, and the B portion 42 is an inner step. Further, the design of the B portions 42 includes two, and the two B portions 42 are bilaterally symmetrical.

The first core back assembly 33 and the second core back assembly 34 of the injection mold of the product 40 are used for molding the a portion 41 and the B portion 42, respectively. As shown in fig. 1 to 5, the first core pulling assembly 33 includes a driving member 331 and an inclined sliding block 332, one end of the driving member 331 is connected to the movable mold assembly 10, the other end of the driving member 331 is provided with a driving inclined surface 3311, and the inclined sliding block 332 is provided with a driven inclined surface 3321 matched with the driving inclined surface 3311. The main sliding block 32 is provided with a first inclined sliding slot 322 which is matched with the inclined sliding block 332 to slide. The end of the inclined slider 332 facing the inside of the mold corresponds to the a portion 41 of the molded product 40.

Specifically, the top end of the driving part 331 is fixedly connected to the movable mold component 10, and when the mold is opened, the driving part 331 moves along with the movable mold component 10, and under the matching action of the driving inclined surface 3311 and the driven inclined surface 3321, the inclined slider 332 slides along the first inclined sliding groove 322 to separate from the product 40, so as to realize the core pulling of the first core pulling component 33.

The inclined slide block 332 is inclined upward from the inner side to the outer side of the mold, so that the first inclined chute 322 is correspondingly inclined upward from the inner side to the outer side of the mold, and the driving inclined plane 3311 is inclined downward from the inner side to the outer side of the mold.

The top end notch of the first inclined sliding groove 322 is provided with a limit block 323, the inclined sliding block 332 is provided with a limit step 3322 matched with the limit block 323, and when the inclined sliding block 332 moves to the limit step 3322 to be clamped with the limit block 323, the driving member 331 can be separated from the inclined sliding block 332. The limiting block 323 is fixed on the main sliding block 32, and the arrangement of the limiting block 323 and the limiting step 3322 can prevent the inclined sliding block 332 from separating from the main sliding block 32, so that subsequent mold closing is facilitated.

As shown in fig. 1 to 4 and 5 to 6, the second core-pulling assembly 34 includes an inclined top 341, a spring 342, and a fixing rod 343, the inclined top 341, the spring 342, and the fixing rod 343 are horizontally disposed, the main slider 32 is provided with a second inclined sliding groove 324 matching with the inclined top 341 to slide, the fixing rod 343 is fixed in the second inclined sliding groove 324, one end of the spring 342 abuts against an end of the inclined top 341 facing the outside of the mold, and the other end abuts against the fixing rod 343. The end of the slanted ejecting portion 341 facing the inside of the mold corresponds to the B portion 42 of the molded product 40, and when the main slider 32 slides towards the outside of the mold, the slanted ejecting portion 341 slides along the second slanted sliding groove 324 towards the outside of the mold to separate from the product 40, thereby implementing the core pulling of the second core pulling assembly 34.

The side wall of the slanted ejecting portion 341 is provided with a limiting rod 344, and the main sliding block 32 is correspondingly provided with a limiting sliding groove 325 matched with the limiting rod 344 for sliding. The design of the limit rod 344 and the limit sliding groove 325 can prevent the lifter 341 from separating from the main sliding block 32.

In this embodiment, the number of the core pulling assemblies is two, and the core pulling assemblies are respectively used for molding two symmetrically arranged B portions 42. One end of the lifter 341 facing the inside of the mold has a molding portion for molding the B portion 42, and the lifter 341 is inclined from the inside to the outside of the mold toward the side of the lifter 341 where the molding portion is designed. The second inclined chute 324 corresponds to the inclined direction of the inclined roof 341.

The mold opening process of the injection molding mold comprises the following steps: the injection molding machine drives the movable mold component 10 to move away from the fixed mold component 20, the driving member 331 moves along with the movable mold component, and the inclined slide block 332 slides along the first inclined slide slot 322 to separate from the product 40 under the cooperation of the driving inclined surface 3311 and the driven inclined surface 3321, so as to complete the core pulling action of the first core pulling component 33. In the process, the inclined guide post 31 moves along with the movable mold assembly 10, and the main slide block 32 is not moved under the yielding action of the inclined guide hole 321 of the main slide block 32. After the first core pulling assembly 33 bends and performs core pulling, the main sliding block 32 slides to the outside of the mold under the action of the inclined guide post 31 and the inclined guide hole 321 to separate from the product 40, and meanwhile, the inclined top 341 also slides along the second inclined chute 324 along with the sliding of the main sliding block 32 and separates from the product 40, thereby completing the core pulling of the main sliding block 32 and the second core pulling assembly 34.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides an injection mold with linkage mechanism of loosing core which characterized in that: including the movable mould subassembly, be located the cover half subassembly and the linkage mechanism of loosing core of movable mould subassembly below, the linkage mechanism of loosing core includes oblique guide pillar, main sliding block, the first subassembly of loosing core and second and looses the subassembly of loosing core, the first subassembly of loosing core with the movable mould subassembly is connected, the second loose core the subassembly with the main sliding block is connected, movable mould subassembly, cover half subassembly, main sliding block, the first subassembly of loosing core and second are loosed the subassembly and enclose and close and form the mould die cavity, guide pillar one end to one side with the movable mould subassembly is connected, the main sliding block be equipped with oblique guide hole of oblique guide pillar other end complex, the transversal waist of personally submitting of oblique guide hole appears.

2. An injection mold with a linked core-pulling mechanism as set forth in claim 1, wherein: the inclined guide post is inclined downwards from the inner side to the outer side of the die, and the cross section of the inclined guide hole is a waist-shaped hole extending from the inner side to the outer side of the die.

3. An injection mold having a linked core-pulling mechanism according to claim 1 or 2, characterized in that: the first core pulling assembly comprises a driving piece and an inclined sliding block, one end of the driving piece is connected with the movable die assembly, a driving inclined plane is arranged at the other end of the driving piece, and the inclined sliding block is provided with a driven inclined plane matched with the driving inclined plane.

4. An injection mold having a linked core-pulling mechanism as claimed in claim 3, wherein: the inclined slide block inclines upwards from the inner side to the outer side of the mold, and the driving inclined plane inclines downwards from the inner side to the outer side of the mold.

5. An injection mold having a linked core-pulling mechanism as claimed in claim 3, wherein: the main sliding block is provided with a first inclined sliding groove matched with the inclined sliding block to slide.

6. An injection mold having a linked core-pulling mechanism as set forth in claim 5, wherein: the top notch of first oblique spout is equipped with the stopper, oblique slider be equipped with stopper complex spacing step, when oblique slider move to spacing step with when the stopper block, the driving piece can break away from oblique slider.

7. An injection mold having a linked core-pulling mechanism according to claim 1 or 2, characterized in that: the second core pulling assembly comprises an inclined top, a spring and a fixed rod, the inclined top, the spring and the fixed rod are horizontally arranged, the main sliding block is provided with a second inclined sliding groove matched with the inclined top to slide, the fixed rod is fixed in the second inclined sliding groove, one end of the spring is abutted to the end portion, facing the outer side of the mold, of the inclined top, and the other end of the spring is abutted to the fixed rod.

8. An injection mold having a linked core-pulling mechanism as claimed in claim 7, wherein: the lateral wall of oblique top is equipped with a gag lever post, main slider corresponds and is equipped with the gliding spacing spout of matching the gag lever post.

9. An injection mold having a linked core-pulling mechanism as claimed in claim 7, wherein: the number of the core pulling assemblies is two.

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