CN212764600U

CN212764600U - Secondary ejection mechanism for mold

Info

Publication number: CN212764600U
Application number: CN202021303108.5U
Authority: CN
Inventors: 孟仕春; 刘红灯
Original assignee: Shenzhen Kemeng Precision Mould Co ltd
Current assignee: Shenzhen Kemeng Precision Mould Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-23
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a secondary ejection mechanism for mould, it includes: the mounting seat is provided with a moving groove on one side of the mounting seat facing the die, clamping grooves are formed in two sides of the moving groove, a first inclined plane is arranged at the upper end of each clamping groove, and the clamping grooves are communicated with the moving grooves; one end of the baffle is inserted into the motion groove and the clamping groove, and a second inclined surface matched with the first inclined surface is arranged on the baffle; and the hook rod, the hook rod bottom stretches into in the motion groove, hook the baffle, the hook rod bottom be equipped with second inclined plane matched with third inclined plane, the hook rod is hooking during baffle upward movement, the mount pad can with in the baffle pushed down the thimble board completely, just the hook rod is pushing up during baffle downstream, can with in the thimble board is pushed down completely to the baffle. Adopt above-mentioned design, make the utility model discloses can realize that the secondary is ejecting, increase ejecting stroke in finite space.

Description

Secondary ejection mechanism for mold

Technical Field

The utility model relates to a mould field especially relates to a secondary ejection mechanism for mould.

Background

After a product is injected and molded on a mold, the product can be adhered to the mold, the mold adhesion force is large, and the product needs to be ejected out of the mold by an ejector pin. When the traditional mold is ejected and demolded, the problems of dragging, white ejection and the like are easily caused to products, particularly, for some products with special shapes, such as products with grooves, the ejector pins are inserted into the grooves, the ejector pins are required to be separated from the grooves after the products are separated from the mold cavities, and the requirements of the products on ejection stroke are larger than those of common products.

Accordingly, there is a need to devise a secondary ejection mechanism for a mold that addresses one or more of the problems set forth above.

SUMMERY OF THE UTILITY MODEL

For solving one or more problems that exist among the prior art, the utility model provides a secondary ejection mechanism for mould.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be: a secondary ejection mechanism for a mold, the secondary ejection mechanism comprising:

the bottom end of the mounting seat is fixed on the mounting seat on the die base, a moving groove is formed in one side, facing the die, of the mounting seat, clamping grooves are formed in two sides of the moving groove, a first inclined plane is formed in the upper end of each clamping groove, and the clamping grooves are communicated with the moving groove;

the baffle is movably connected with the lower ejector plate of the die, one end of the baffle is inserted into the moving groove and the clamping groove, and a second inclined surface matched with the first inclined surface is arranged on the baffle; and

the hook rod on the thimble board on the mould is fixed on the top, the hook rod bottom stretches into in the motion groove, hooks the baffle, the hook rod bottom be equipped with second inclined plane matched with third inclined plane, the hook rod is hooking during the baffle upward movement, the mount pad can with in the thimble board under the baffle is pushed into completely, just the hook rod is pushing up during the baffle downstream, can with in the thimble board under the baffle is pushed into completely.

In some embodiments, the slot is in the shape of a right trapezoid.

In some embodiments, the secondary ejection mechanism further comprises a movable groove which is arranged on the lower ejector plate and matched with the baffle, one end of the baffle is inserted into the movable groove, and a threaded hole is formed in the movable groove.

In some embodiments, the secondary ejection mechanism further comprises a bolt rod, and one end of the bolt rod penetrates through the baffle plate and is in threaded connection with the threaded hole.

In some embodiments, the bolt shaft is further sleeved with a spring, and the spring is located between the baffle and the threaded hole.

In some embodiments, the hook stem is hook-shaped.

The utility model has the advantages that: compared with the prior art, the utility model discloses a: the bottom end of the mounting seat is fixed on the mounting seat on the die base, a moving groove is formed in one side, facing the die, of the mounting seat, clamping grooves are formed in two sides of the moving groove, a first inclined plane is formed in the upper end of each clamping groove, and the clamping grooves are communicated with the moving groove; the baffle is movably connected with the lower ejector plate of the die, one end of the baffle is inserted into the moving groove and the clamping groove, and a second inclined surface matched with the first inclined surface is arranged on the baffle; and the top end is fixed on the hook rod on the thimble board on the mould, the hook rod bottom stretches into in the motion groove, hook the baffle, the hook rod bottom be equipped with second inclined plane matched with third inclined plane, the hook rod is hooking during the baffle upward movement, the mount pad can with in the thimble board under the baffle is pushed in completely, just the hook rod is being pushed up during the baffle downstream, can with in the thimble board under the baffle is pushed in completely. Adopt above-mentioned design, make the utility model discloses can realize that the secondary is ejecting, increase ejecting stroke in finite space.

Drawings

FIG. 1 is a schematic view of the assembly of the preferred embodiment of the present invention on a mold;

FIG. 2 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 4 is a schematic structural view of a mounting base according to a preferred embodiment of the present invention;

FIG. 5 is a schematic view of a baffle according to a preferred embodiment of the present invention;

fig. 6 is a schematic structural view of a hook rod according to a preferred embodiment of the present invention.

In the figure:

1. a mounting seat; 11. a motion groove; 12. a card slot; 13. a first inclined plane;

2. a baffle plate; 21. a second inclined plane;

3. a hook rod; 31. a third inclined plane;

4. a base;

5. a lower ejector plate;

6. an upper ejector plate;

7. a bolt shank;

8. a spring.

Detailed Description

In order to make the above objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1-6, the utility model provides a secondary ejection mechanism for mould, secondary ejection mechanism includes:

the bottom end of the mounting seat 1 is fixed on the die base 4, a moving groove 11 is formed in one side, facing a die, of the mounting seat 1, clamping grooves 12 are formed in two sides of the moving groove 11, a first inclined surface 13 is arranged at the upper end of each clamping groove 12, and the clamping grooves 12 are communicated with the moving groove 11;

the baffle 2 is movably connected with the lower ejector plate 5 of the mold, one end of the baffle 2 is inserted into the moving groove 11 and the clamping groove 12, and a second inclined surface 21 matched with the first inclined surface 13 is arranged on the baffle 2; and

the top is fixed on the mould on thimble board 6 the

gib block

3, 3 bottoms of gib block stretch into in the motion groove 11,

hook baffle

2, 3 bottoms of gib block be equipped with second inclined plane 21 matched with third

inclined plane

31, 3 hooks of gib block during the baffle 2 upward movement, mount pad 1 can with in 2 complete pressdown thimble boards 5 of baffle, just 3 pushing up of gib block during the baffle 2 downstream, can with in 2 complete pressdown thimble boards 5 of baffle.

In some embodiments, the slot 12 is in the shape of a right trapezoid.

In some embodiments, the secondary ejection mechanism further comprises a movable groove which is arranged on the lower ejector plate 5 and matched with the baffle 2, one end of the baffle 2 is inserted into the movable groove, and the movable groove is provided with a threaded hole.

In some embodiments, the secondary ejection mechanism further comprises a bolt rod 7, and one end of the bolt rod 7 penetrates through the baffle plate 2 and is in threaded connection with the threaded hole.

In some embodiments, the bolt rod 7 is further sleeved with a spring 8, and the spring 8 is located between the baffle 2 and the threaded hole.

In some embodiments, the hooking rod 3 is hook-shaped.

Specifically, the conventional mold generally includes a base 4, an ejector plate, a lower template, an upper template, an ejector seat, an ejector pin, a return pin, a guide pillar and the like, and by ejecting the ejector plate upward, the upper template is separated from the lower template, and the ejector pin ejects the product for demolding. The thimble board of this embodiment includes thimble board 6 and lower thimble board 5 down, also can set up well thimble board as required, and the thimble includes the thimble of fixing on thimble board 5 down and fixes the thimble on last thimble board 6, and in the thimble on lower thimble board 5 inserted into the recess of product, the bottom surface of product is being pushed up to the thimble on the thimble board 6.

This embodiment sets up the both sides at the mould, wherein including fixing the gib block 3 in 6 sides of last thimble board, fix mount pad 1 on base 4, mount pad 1 is located gib block 3 below, in the motion groove 11 of mount pad 1 is down stretched into from last to gib block 3, and connect baffle 2 on thimble board 5 down, in baffle 2 was equipped with the motion groove 11 and the draw-in groove 12 of mount pad 1 is gone into to the one end card that second inclined plane 21 was equipped with, draw-in groove 12 top is equipped with the first inclined plane 13 with second inclined plane 21 matched with. The bottom end of the hook rod 3 is below the baffle 2, and the top end of the hook rod 3 is above the baffle 2, i.e. the hook rod 3 hooks the baffle 2, so that the baffle 2 moves together with the baffle. The lower ejector retainer plate 5 is provided with a movable groove, the movable groove is provided with a threaded hole, the baffle 2 is provided with a corresponding through hole, a bolt rod 7 penetrates through the through hole of the baffle 2 and is in threaded connection with the threaded hole, the bolt rod 7 is sleeved with a spring 8, the spring 8 has an outward ejecting force on the baffle 2, and by means of the design, the baffle 2 cannot be separated from the movable groove, the baffle 2 can be completely extruded into the movable groove under external force extrusion, and the baffle can be returned to the original position to be clamped into the clamping groove 12 under the condition that no external force is applied to the baffle. The through holes on the baffle 2 are sunk, so that the bolt heads of the bolt rods 7 cannot block the hook rods 3 after the baffle 2 is extruded into the movable groove.

Raise certain distance up with last thimble board 6, simultaneously the hooked pole 3 is because fixed on last thimble board 6, so the hooked pole 3 also is hooking baffle 2 upward movement, and the hooked pole 3 of both sides acts on simultaneously, just is equivalent to lifting baffle 2 upwards together. Because mount pad 1 is fixed on base 4, and baffle 2 one end card is gone into in draw-in groove 12, so after the hook rod 3 is hooking baffle 2 upward movement certain distance, first inclined plane 13 of mount pad 1 cooperatees with second inclined plane 21 of baffle 2, make baffle 2 upward movement, in being extruded gradually into the movable slot on one side, when baffle 2 upward movement, because baffle 2 one end is inserted into the movable slot, so lower thimble board 5 also along with baffle 2 upward movement, the product is also upward moved in the top of ejector pin board 5 and the last thimble on the thimble board 6 down, leave the die cavity gradually, realize ejecting for the first time. After the baffle 2 is completely extruded into the movable groove, the hook rod 3 is not hooked with the baffle 2, and when the upper ejector plate 6 is continuously raised, the lower ejector plate 5 is not moved upwards together, and returns to the original position, so that the ejector pins on the lower ejector plate 5 are not moved upwards together with the ejector pins on the upper ejector plate 6, and thus, the ejector pins on the upper ejector plate 6 push the product upwards, and the ejector pins on the lower ejector plate 5 are separated from the product grooves, so that secondary ejection is realized.

After the lower ejector plate 5 returns to the original position, the baffle 2 returns to the original position without being extruded and is clamped at the clamping groove 12. The hook bar 3 moves downward with the upper ejector plate 6 until it is caught by the shutter 2 which is returned to the original position. The hook rod 3 continues to move downwards, the baffle 2 is extruded into the movable groove again under the matching of the third inclined surface 31 at the bottom of the hook rod 3 and the second inclined surface 21 of the baffle 2, the hook rod 3 can move downwards over the baffle 2 until the baffle 3 is not extruded, and the baffle 2 rebounds to the original position and is hooked by the hook rod 3.

To sum up, the utility model comprises a mounting seat 1 with the bottom end fixed on a mold base 4, wherein a moving groove 11 is arranged on one side of the mounting seat 1 facing to a mold, clamping grooves 12 are arranged on two sides of the moving groove 11, a first inclined plane 13 is arranged at the upper end of each clamping groove 12, and the clamping grooves 12 are communicated with the moving groove 11; the baffle 2 is movably connected with the lower ejector plate 5 of the mold, one end of the baffle 2 is inserted into the moving groove 11 and the clamping groove 12, and a second inclined surface 21 matched with the first inclined surface 13 is arranged on the baffle 2; and the top is fixed on the mould on thimble board 6 the gib block 3, 3 bottoms of gib block stretch into in the motion groove 11, hook baffle 2, 3 bottoms of gib block be equipped with second inclined plane 21 matched with third inclined plane 31, 3 hooks of gib block during baffle 2 upward movement, mount pad 1 can with baffle 2 is pressed down in the thimble board 5 completely, just 3 is pushing up of gib block during the baffle 2 downstream, can with baffle 2 is pressed down in the thimble board 5 completely. Adopt above-mentioned design, make the utility model discloses can realize that the secondary is ejecting, increase ejecting stroke in finite space.

The above-described embodiments are merely illustrative of one or more embodiments of the present invention, and the description thereof is more specific and detailed, but the scope of the invention is not limited thereto. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A secondary ejection mechanism for a mold, the secondary ejection mechanism comprising:

2. The secondary ejection mechanism for a mold according to claim 1, wherein the card slot is in a right trapezoid shape.

3. The secondary ejection mechanism for the mold according to claim 2, further comprising a movable groove provided on the lower ejector plate and engaged with the baffle, wherein one end of the baffle is inserted into the movable groove, and the movable groove is provided with a threaded hole.

4. The secondary ejection mechanism for a mold according to claim 3, further comprising a bolt rod, one end of which passes through the baffle plate and is in threaded connection with the threaded hole.

5. The secondary ejection mechanism for the mold as claimed in claim 4, wherein the bolt rod is further sleeved with a spring, and the spring is located between the baffle and the threaded hole.

6. The secondary ejection mechanism for a mold according to claim 5, wherein the hook lever is hook-shaped.