CN210911006U

CN210911006U - Secondary slide structure of injection mold

Info

Publication number: CN210911006U
Application number: CN201921769676.1U
Authority: CN
Inventors: 林成广; 周春望
Original assignee: Shenzhen Jimei Mold Technology Co ltd
Current assignee: Shenzhen Jimei Mold Technology Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-03
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses an injection mold's capable bit architecture of secondary, include: the mould comprises a plate A, a front mould core arranged below the plate A, a plate B, a rear mould core arranged above the plate B, a small slide, a large slide, an inclined guide post and a shovel base, wherein the small slide is arranged above the large slide; the shovel base is locked on the A plate and is respectively abutted against the tail parts of the small row position and the large row position; the small slide is provided with an inclined guide post passing hole, the large slide is provided with an inclined guide post avoiding hole, the inner diameter of the inclined guide post avoiding hole is larger than that of the inclined guide post passing hole, one end of the inclined guide post is fixed on the front die core, and the other end of the inclined guide post sequentially passes through the inclined guide post passing hole and the inclined guide post avoiding hole and is held in a avoiding groove of the B plate. The utility model provides a back-off have the production difficult problem of contained angle structure product, the die sinking is simple.

Description

Secondary slide structure of injection mold

Technical Field

The utility model relates to the field of mechanical design, concretely relates to injection mold's capable bit architecture of secondary.

Background

In the production process of injection products, products with inverted structures and included angle structures are designed according to the traditional mold process, and the mold opening is generally completed by twice core pulling. However, the mold which adopts twice core pulling to complete mold opening is complex in structure, in the injection molding production process, the mold opening sequence of the mold is complex, the control difficulty is high, mold collision is easy to occur, the product yield is low, the product manufacturing cost is correspondingly increased, and the production requirement is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

For solving the above technical problem, the utility model provides an injection mold's capable bit architecture of secondary.

The technical scheme of the utility model as follows: the utility model provides an injection mold's capable bit architecture of secondary, include: the mould comprises a plate A, a plate B, a front mould core arranged below the plate A, a rear mould core arranged above the plate B, a small slide, a large slide, an inclined guide post and a shovel base, wherein the small slide is arranged above the large slide; the shovel base is locked on the A plate and is respectively abutted against the tail parts of the small row position and the large row position; the novel inclined guide post structure is characterized in that an inclined guide post passing hole is formed in the small row position, an inclined guide post avoiding hole is formed in the large row position, the inner diameter of the inclined guide post avoiding hole is larger than that of the inclined guide post passing hole, or the inclined guide post avoiding hole is a long-strip-shaped hole or the end face of the inclined guide post avoiding hole is oval, one end of the inclined guide post is fixed on the front die core, and the other end of the inclined guide post sequentially passes through the inclined guide post passing hole and the inclined guide post avoiding hole and is contained in a avoiding groove of the B plate.

Furthermore, a first T groove is arranged on the small row position, and the small row position is sleeved on the large row position through the first T groove; the large slide is provided with a second T-shaped groove and sleeved on the rear mold core through the second T-shaped groove.

Furthermore, corresponding to the first T-shaped slot, a first bump is arranged on the large row bit, and the first T-shaped slot is sleeved on the first bump; and a second lug is arranged on the rear die core corresponding to the second T-shaped groove, and the second T-shaped groove is sleeved on the second lug.

Further, the diameter of the inclined guide post penetrating hole is the same as the outer diameter of the inclined guide post.

Further, the inner diameter of the clearance groove is larger than or equal to that of the inclined guide pillar clearance hole.

Furthermore, the tail part of the large slide is provided with a limit screw which has a limiting effect on the movement of the small slide.

Furthermore, the shovel base is provided with a first inclined surface and a second inclined surface, the first inclined surface abuts against the tail of the small slide, and the second inclined surface abuts against the tail of the large slide.

Adopt above-mentioned scheme, the utility model discloses an injection mold's secondary slide structure is through setting up big line position, little line position to set up oblique guide pillar on little line position and pass the hole, set up oblique guide pillar clearance hole on big line position, and will the diameter that oblique guide pillar clearance hole set up to be greater than the diameter that oblique guide pillar passed the hole perhaps oblique guide pillar clearance hole is rectangular shape hole perhaps the terminal surface that oblique guide pillar kept away the clearance hole is the ellipse, when making the die sinking, the guide pillar drives earlier to one side little line position motion, reachs when the limit of guide pillar to one side during the inner wall in clearance hole is kept away to oblique guide pillar, just drives big line position motion accomplishes the secondary line position, has solved the difficult problem of production of back-off and contained angle structure product well, and the die sinking is simple, and the product percent of pass is high, just the utility model discloses a secondary slide structure simple structure, low in production cost is worth wideling use widely.

Drawings

Fig. 1 is a schematic diagram of a secondary slide structure of an injection mold of the present invention.

Fig. 2 is a partial enlarged view of a secondary slide structure of the injection mold of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the present invention provides a secondary slide structure of an injection mold, which is suitable for injection molding of a product with a structure reverse buckle and an included angle structure, and includes: the device comprises an A plate 1, a B plate 3, a front mold core 2 arranged below the A plate 1, a rear mold core 4 arranged above the B plate 3, a small row position 5, a large row position 6, an inclined guide pillar 7 and a shovel base 8, wherein the small row position 5 is arranged above the large row position 6; after the plate A1 and the plate B3 are buckled, the small slide 5, the large slide 6, the front mold core 2 and the rear mold core 4 are accommodated between the plate A1 and the plate B3 and are in firm and close fit to form a cavity 10, and the cavity 10 extends to the end parts of the small slide 5 and the large slide 6. The shovel base 8 is locked on the A plate 1 through a screw 9, the shovel base 8 abuts against the tail portions of the small row position 5 and the large row position 6 respectively, an inclined guide pillar passing hole (not shown) is formed in the small row position 5, an inclined guide pillar avoiding hole 61 is formed in the large row position 6, the inner diameter of the inclined guide pillar avoiding hole 61 is larger than that of the inclined guide pillar passing hole, one end of the inclined guide pillar 7 is fixed on the front mold core 2, and the other end of the inclined guide pillar sequentially passes through the inclined guide pillar passing hole and the inclined guide pillar avoiding hole 61 and is contained in the avoiding groove 31 of the B plate 3. In other embodiments, the inclined guide post clearance hole 61 is a long-strip-shaped hole, and the inclined guide post 7 can move in the long-strip-shaped hole; or the end surface of the inclined guide post clearance hole 61 is oval, and the inclined guide post 7 can move in the hole with the oval end surface, and the same effects as the above embodiment are also achieved.

Specifically, the shovel base 8 is provided with a first inclined surface 81 and a second inclined surface 82, the first inclined surface 81 abuts against the tail of the small travel position 5, and the second inclined surface 82 abuts against the tail of the large travel position 6. A third inclined surface (not shown) which is attached to the first inclined surface 81 is arranged at the tail part of the small slide 5 in cooperation with the first inclined surface 81; a fourth inclined plane (not shown) attached to the second inclined plane 82 is arranged at the tail of the big row 6 in cooperation with the second inclined plane 82; after the mold is closed, the first inclined surface 81 of the shovel base 8 is tightly attached and abuts against the third inclined surface of the small row position 5, the second inclined surface 82 of the shovel base 8 is tightly attached and abuts against the fourth inclined surface of the large row position 6, and the small row position 5 and the large row position 6 are fixed between the front mold core 2 and the rear mold core 4 by the shovel base 8. In this embodiment, the first inclined surface 81 and the second inclined surface 82 have the same inclination angle as the inclined guide post 7.

A first T-shaped slot 51 is formed in the small row position 5, and the small row position 5 is sleeved on the large row position 6 through the first T-shaped slot 51; the big row 6 is provided with a second T-shaped groove 61, and the big row 6 is sleeved on the rear mold core 4 through the second T-shaped groove 61. Corresponding to the first T-shaped slot 51, a first bump 62 is arranged on the large row, and the first T-shaped slot 51 is sleeved on the first bump 62; the rear mold core 4 is provided with a second protrusion 41 corresponding to the second T-shaped groove 61, and the second T-shaped groove 61 is sleeved on the second protrusion 41. The small slide 5 is closely attached to the first protrusion 61 of the large slide 6 through the first T-shaped groove 51, and the large slide 6 is closely attached to the second protrusion 41 of the rear mold core 4 through the second T-shaped groove 61, and it should be noted that, by this arrangement, the front end of the small slide 5 and the front end of the large slide 6 can form the cavity 10 together with the front mold core 2 and the rear mold core 4 according to the shape requirement of the injection molding product.

Preferably, the inner diameter of the angle guide post passing hole is the same as the outer diameter of the angle guide post 7, and the angle guide post 7 passes through the angle guide post passing hole and slides along the angle guide post passing hole. The B plate 3 is provided with an inclined guide post clearance groove 31, one end of the inclined guide post 7 is accommodated in the clearance groove 31, in a preferred embodiment, the inner diameter of the clearance groove 31 is greater than or equal to the inner diameter of the inclined guide post clearance hole 61, so that the inclined guide post 7 has a certain moving range during mold opening to complete the mold opening process.

Preferably, the tail part of the large row 6 is provided with a limit screw 11, and the limit screw 11 limits the movement of the small row 5. Specifically, when the mold is opened, the plate A1 and the front mold core 2 are opened upwards to be separated from the upper part of the injection molding product and the small row position 5, the shovel base 8 moves rightwards to lose the abutting pressure on the small row position 5 and the large row position 6, and the small row position 5 moves rightwards firstly under the action of the inclined guide pillar 7 to finish the product back-off; when the inclined guide post 7 contacts the inner wall of the right side of the inclined guide post clearance hole 61, the acting force of the inclined guide post 7 is applied to the large slide 6, so that the large slide 6 starts to move rightwards, one end of the inclined guide post 7 moves in the clearance groove 31 in the process until the tail of the small slide 5 is blocked by the limiting screw 11, and at the moment, the large slide 6 and a product complete reverse buckling demolding, so that the product can be ejected in order, and the whole demolding process is completed.

In summary, the utility model provides a secondary slide structure of an injection mold, which is characterized in that a large slide and a small slide are arranged, an inclined guide post is arranged on the small slide to pass through a hole, an inclined guide post clearance hole is arranged on the large slide, the diameter of the inclined guide post clearance hole is larger than that of the inclined guide post passing hole, or the inclined guide post clearance hole is a long-strip-shaped hole or the end surface of the inclined guide post clearance hole is oval, so that when the mold is opened, the inclined guide post drives the small slide to move firstly, when the edge of the inclined guide post reaches the inner wall of the inclined guide post clearance hole, the large slide is driven to move to complete the secondary slide, the production problem of the product which is reversely buckled and has an included angle structure is well solved, the die sinking is simple, the product percent of pass is high, just the utility model discloses a secondary slide structure simple structure, low in production cost is worth wideling popularize and use.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an injection mold's secondary slide structure which characterized in that includes: the mould comprises a plate A, a plate B, a front mould core arranged below the plate A, a rear mould core arranged above the plate B, a small slide, a large slide, an inclined guide post and a shovel base, wherein the small slide is arranged above the large slide; the shovel base is locked on the A plate and is respectively abutted against the tail parts of the small row position and the large row position; the novel inclined guide post structure is characterized in that an inclined guide post passing hole is formed in the small row position, an inclined guide post avoiding hole is formed in the large row position, the inner diameter of the inclined guide post avoiding hole is larger than that of the inclined guide post passing hole, or the inclined guide post avoiding hole is a long-strip-shaped hole or the end face of the inclined guide post avoiding hole is oval, one end of the inclined guide post is fixed on the front die core, and the other end of the inclined guide post sequentially passes through the inclined guide post passing hole and the inclined guide post avoiding hole and is contained in a avoiding groove of the B plate.

2. The secondary slide structure of an injection mold according to claim 1, wherein the small slide is provided with a first T-slot, and the small slide is sleeved on the large slide through the first T-slot; the large slide is provided with a second T-shaped groove and sleeved on the rear mold core through the second T-shaped groove.

3. The secondary slide structure of an injection mold according to claim 2, wherein a first protrusion is disposed on the large slide corresponding to the first T-shaped groove, and the first T-shaped groove is sleeved on the first protrusion; and a second lug is arranged on the rear die core corresponding to the second T-shaped groove, and the second T-shaped groove is sleeved on the second lug.

4. The secondary slide structure of an injection mold according to claim 1, wherein an inner diameter of the oblique guide post passing hole is the same as an outer diameter of the oblique guide post.

5. The secondary slide structure of an injection mold according to claim 1, wherein the inner diameter of the clearance groove is greater than or equal to the inner diameter of the oblique guide post clearance hole.

6. An injection mold secondary slide structure as claimed in any of claims 1-3, wherein the tail of the large slide is provided with a limit screw, and the limit screw is used for limiting the movement of the small slide.

7. The secondary slide structure of an injection mold according to claim 1, wherein the shovel base is provided with a first inclined surface and a second inclined surface, the first inclined surface abuts against the small slide tail, and the second inclined surface abuts against the large slide tail.