CN210148645U

CN210148645U - Core pulling structure and mold

Info

Publication number: CN210148645U
Application number: CN201921001531.7U
Authority: CN
Inventors: 禹琰; 何生成
Original assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Current assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-03-17
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a structure of loosing core and mould, the structure of loosing core includes: a movable mould core; the bottom surface of the first side wall of the fixed template is provided with a limiting mechanism; a second side wall of the fixed die core, which is positioned on the same side as the first side wall, is provided with a lateral sliding mechanism, and the lateral sliding mechanism can slide relative to the limiting mechanism; when the movable mold core and the fixed mold core are assembled, the lateral sliding mechanism is abutted against the fixed mold core; when the movable mold core moves towards the mold opening direction, the lateral sliding mechanism slides along the mold opening direction and the closing direction perpendicular to the mold opening direction until the movable mold core is limited by the limiting mechanism.

Description

Core pulling structure and mold

Technical Field

The utility model relates to the technical field of molds, particularly, relate to a structure of loosing core and mould.

Background

In the field of air conditioning and the like, a mold is often used for processing products such as a shell and the like. When the requirement of the product on the appearance precision is high, the product is not allowed to be subjected to die drawing or is subjected to small die drawing. The product is processed by adopting the existing mould, and for the product without drawing or with small drawing, the mould can scratch the product in the mould opening process, thereby influencing the product quality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how make structure of loosing core and mould can not the fish tail product at the die sinking in-process to improve product quality.

In order to solve the above problem, the utility model provides a core pulling structure, include:

a movable mould core;

the bottom surface of the first side wall of the fixed template is provided with a limiting mechanism;

a second side wall of the fixed die core, which is positioned on the same side as the first side wall, is provided with a lateral sliding mechanism, and the lateral sliding mechanism can slide relative to the limiting mechanism;

when the movable mold core and the fixed mold core are assembled, the lateral sliding mechanism is abutted against the fixed mold core;

when the movable mold core moves towards the mold opening direction, the lateral sliding mechanism slides along the mold opening direction and the closing direction perpendicular to the mold opening direction until the movable mold core is limited by the limiting mechanism.

Through the structure, the sliding direction of the lateral sliding mechanism is the closing direction of the die opening direction and the direction perpendicular to the die opening direction, the product die-out space can be made in the die opening process, and the product without die drawing or with small die drawing is ensured not to be scratched.

In an embodiment of the present invention, the second sidewall has:

a slider accommodating groove;

the guide groove is formed in the side wall of the sliding block accommodating groove and extends along the closing direction;

the spring groove is formed in the bottom surface of the sliding block accommodating groove;

the lateral sliding mechanism includes:

the sliding block is arranged in the sliding block accommodating groove;

the spring is arranged between the spring groove and the sliding block;

under the action of the spring, the sliding block can slide along the guide groove in the closing direction.

In the embodiment of the utility model, the top surface of the slide block is provided with a spring accommodating groove;

the lateral sliding mechanism further includes:

a spring rod fixed in the spring groove,

the spring is sleeved on the spring rod, one end of the spring is accommodated in the spring groove, and the other end of the spring abuts against the spring accommodating groove of the sliding block.

In an embodiment of the present invention, a wear-resistant block is fixed on a surface of the sliding block facing the fixed die plate.

In the embodiment of the utility model, the slide block is provided with a limit groove; when the limiting groove is abutted to the limiting mechanism, the sliding block is limited by the limiting mechanism.

In an embodiment of the present invention, the bottom surface of the first sidewall is provided with a fixing groove;

the limiting mechanism 37 includes: the limiting hook is fixed in the fixing groove; when the lateral sliding mechanism is abutted against the limiting hook, the lateral sliding mechanism is limited by the limiting hook.

In an embodiment of the present invention, the lateral sliding mechanism and the movable mold core are provided with a linkage mechanism;

when the movable mold core moves towards the mold opening direction, the lateral sliding mechanism slides along with the movable mold core under the action of the linkage mechanism.

In the embodiment of the present invention, the bottom surface of the lateral sliding mechanism is provided with a mounting groove;

the link gear includes:

the first drag hook is fixed in the mounting groove;

the second draw hook is fixed on the movable mould core;

when the movable mould core moves towards the mould opening direction, the second draw hook pulls the first draw hook, so that the lateral sliding mechanism slides along with the movable mould core.

In an embodiment of the present invention, when the lateral sliding mechanism is limited by the limiting mechanism, the second hook is disengaged from the first hook.

In an embodiment of the present invention, an included angle between the closing direction and the mold opening direction is 18 ° to 25 °.

The utility model also provides a mould, include: any of the above core pulling structures.

Drawings

FIG. 1 is an external view of a product;

fig. 2 is a schematic structural diagram of a core pulling structure according to an embodiment of the present invention;

FIG. 3 is a structural diagram of the fixed mold core and the lateral sliding mechanism according to the embodiment of the present invention;

FIG. 4 is a structural diagram of a lateral sliding mechanism according to an embodiment of the present invention;

fig. 5 is an exploded view of a lateral sliding mechanism according to an embodiment of the present invention;

FIG. 6 is a structural diagram of a cover half assembly according to an embodiment of the present invention;

fig. 7 is a structural diagram of the core-pulling structure in the mold closing state according to the embodiment of the present invention;

fig. 8 is a structural diagram of the core pulling structure in the mold opening state according to the embodiment of the present invention;

fig. 9 is a structural diagram of a lateral sliding mechanism when the core-pulling structure of the embodiment of the present invention is in the mold-opening state;

fig. 10 is the structure diagram of the embodiment of the present invention for completing the mold opening of the core pulling structure.

Description of reference numerals:

1-product 1; 2-straight side; 3-a lateral sliding mechanism; 4-a slide block; 5-a guide bar; 6-guide bar screw; 7-a guide groove; 8-a spring rod; 9-a spring; 10-a wear-resistant block; 11-wear block screws; 12-limit hook screw; 13-a limit hook; 14-a first draw hook; 15-first hook screw; 16-second hook screw; 17-a second draw hook; 18-a limiting groove; 19-mounting grooves; 20-a stationary mold base plate; 21-hot runner plate; 22-fixing a template; 23-fixing the mold core; 24-moving die core; 25-moving the template; 26-square iron; 27-a thimble panel; 28-thimble baseplate; 29-moving die base plate; 30-a spring receiving groove; 31-a guide groove; 32-fixed slots; 33-a slider receiving groove; 34-a spring groove; 35-a stationary mold assembly; 36-a movable die assembly; 37-a limiting mechanism; 38-a receiving tank; 39-a first side wall; 40-a second side wall; h-vertical stroke; d-horizontal stroke; x-the mold opening direction; y-is vertical to the mold opening direction; h-resultant direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

An embodiment of the utility model provides a structure of loosing core, as shown in fig. 2 and fig. 3, include: the device comprises a fixed die plate 22, a fixed die core 23, a movable die core 24, a movable die plate 25, a lateral sliding mechanism 3 and a limiting mechanism 37.

The movable mould core 24 and the movable mould plate 25 are arranged opposite to the fixed mould plate 22 and the fixed mould core 23 and can move relative to the fixed mould plate 22 and the fixed mould core 23. In fig. 2, the upward direction is the mold closing direction, and the downward direction is the mold opening direction. The movable mold core 24 and the movable mold plate 25 can move along the mold closing direction or the mold opening direction relative to the fixed mold plate 22 and the fixed mold core 23.

When the movable mold core 24 and the fixed mold core 23 are closed, the lateral sliding mechanism 3 is abutted against the fixed mold core 23. When the movable mold core 24 moves towards the mold opening direction, the lateral sliding mechanism 3 can slide along with the movable mold core 24 until being limited by the limiting mechanism 37. The sliding direction of the lateral sliding mechanism 3 is a diagonally downward direction, that is, a mold opening direction and a closing direction perpendicular to the mold opening direction.

The core plate 23 is fixed in the core plate 22. The limiting mechanism 37 is arranged on the bottom surface of the first side wall 39 of the fixed die plate 22. The side sliding mechanism 3 is disposed on a second side wall 40 of the core 23 on the same side as the first side wall 39, and can slide relative to the limiting mechanism 37. The cavity 23 has a receiving groove 38, and the lateral sliding mechanism 3 is disposed in the receiving groove 38.

As shown in fig. 3, the lateral sliding mechanism 3 of the present embodiment is composed of other components such as a slider 4, two springs 9, and the like, and can slide along an oblique downward direction relative to the core 23.

Referring to fig. 4 and 5, in the lateral sliding mechanism 3 of the present embodiment, the sliding block 4 is a rectangular parallelepiped structure. The top and bottom surfaces of the slider 4, and one pair of side surfaces thereof, are parallel to each other, and the other pair of side surfaces are not parallel. One of the pair of non-parallel side surfaces is perpendicular to the top and bottom surfaces, and the other side surface is not perpendicular to the top and bottom surfaces and forms an angle with the opposite side surface. In the present embodiment, for convenience of description, a pair of side surfaces parallel to each other is referred to as a left side surface and a right side surface, and the surface not perpendicular to the top surface and the bottom surface is referred to as a slope.

The slider 4 of this embodiment has guide grooves 7 formed on both the left and right side surfaces thereof, the guide grooves 7 of the two are parallel to each other, and the guide grooves 7 extend in an obliquely downward direction, that is, the extending direction of the guide grooves 7 is not perpendicular to the top and bottom surfaces of the slider 4 and is parallel to the inclined surface of the slider 4.

The guide strip 5 is fixed in the guide groove 7, and the height of the guide strip 5 is greater than the depth of the guide groove 7, so that the guide strip 5 is higher than the left side surface and the right side surface of the sliding block 4. The guide strip 5 can be fixed by means of guide strip screws. The guide strip 5 is aligned with the extension direction of the guide groove 7, i.e., extends in an obliquely downward direction, is not perpendicular to the top and bottom surfaces of the slider 4, and is parallel to the inclined surface of the slider 4.

The slide block 4 of the embodiment is provided with a mounting groove on the inclined surface, and a wear-resistant block 10 is fixed in the mounting groove. The wear block 10 may be secured, for example, by wear block screws. The wear-resisting block 10 is used for protecting the sliding block 4 and reducing the abrasion of the sliding block 4 in the mold opening process.

The slider 4 is opened at its top surface with two spring receiving grooves 30, and one end of the spring 9 can be received in the spring receiving groove 3 (). The spring 9 is aligned with the extending direction of the guide groove 7, i.e., extends in an obliquely downward direction, is not perpendicular to the top and bottom surfaces of the slider 4, and is parallel to the inclined surface of the slider 4. The spring 9 can provide elasticity for the slide block 4 so that the slide block 4 follows the moving die core 24 to move.

The inclined plane of the sliding block 4 is also provided with a limiting groove 18, and the limiting groove 18 is matched with a limiting mechanism 37. When the stopper groove 18 abuts against the stopper mechanism 37, the slider 4 is stopped by the stopper mechanism 37.

The lateral sliding mechanism 3 and the movable die core 24 of this embodiment are provided with a linkage mechanism. When the movable mold core 24 moves towards the mold opening direction, the lateral sliding mechanism 3 slides along with the movable mold core 24 under the action of the linkage mechanism. The link gear includes: a first hook 14 and a second hook 17.

The bottom surface of the sliding block 4 is provided with a mounting groove 19. The first hook 14 is fixed in this mounting groove 19 of the slide 4 by means of a first hook screw 15. The second hook 17 is fixed on the movable die core 24 through a second hook screw 17. When the movable die core 24 moves towards the die opening direction, the second draw hook 17 pulls the first draw hook 14, so that the slide block 4 slides along with the movable die core 24.

Referring to fig. 6, the receiving groove 38 of the fixed mold core 23 is formed in the second sidewall 40 of the fixed mold core 23, and the receiving groove 38 includes: a slider receiving groove 33, a guide groove 31, and two spring grooves 34.

The slide receiving groove 33 is formed on the second sidewall 40 of the cavity 23 for receiving the slide 4.

The number of the guide grooves 31 is two, and the two guide grooves are respectively formed in two opposite side walls of the slider accommodating groove 33. The guide groove 31 provides a guide for the sliding of the slider 4. The guide groove 31 of the slider receiving groove 33 is aligned with the extending direction of the guide bar 5 of the slider 4, i.e., extends in a diagonally downward direction, is not perpendicular to the upper and lower surfaces of the slider 4, and is parallel to the inclined surface of the slider 4. After the slide block 4 is placed in the slide block accommodating groove 33, the two guide strips 5 of the slide block 4 are respectively inserted into the two guide grooves 31 of the core insert 23, so that the slide block 4 can slide along the guide grooves 31.

The spring groove 34 is opened at the bottom of the slider receiving groove 33. When the slider 4 is placed in the slider receiving groove 33, one end of the spring 9 is received in the spring receiving groove 30 of the slider 4 and the other end is received in the spring groove 34.

The spring groove 34 is provided with a spring lever 8 therein. The spring bar 8 coincides with the direction of extension of the guide strip 5 of the slider 4, i.e. extends in an obliquely downward direction, is not perpendicular to the top and bottom surfaces of the slider 4, and is parallel to the inclined surface of the slider 4. The spring 9 is sleeved on the spring rod 8, one end of the spring 9 is accommodated in the spring groove 34, and the other end of the spring 9 is abutted against the spring accommodating groove 30.

In the core back structure of the present embodiment, the fixing groove 32 is formed on the bottom surface of the first side wall 39 of the stationary platen 22, i.e., the surface facing the movable platen 25. The limit mechanism 37 includes: and the limit hook 13 is fixed in the fixing groove 32 of the fixed template 22 through a limit hook screw 12. When the sliding block 4 slides towards the closing direction and the sliding limiting groove 18 abuts against the limiting hook 13, the sliding block 4 is limited by the limiting hook 13 and stops sliding.

The above is a description of the structure of the core back structure of the present embodiment, and the following is a description of the operation process of the core back structure.

As shown in fig. 7, in the core pulling structure of the present embodiment, when the movable mold core 24 and the fixed mold core 23 are combined together, the core pulling structure is in a mold closing state, and the product 1 is processed.

In the clamped state, the movable platen 25 abuts against the fixed platen 22. The movable mold plate 25 abuts against the slide block 4 at the same time, so that the slide block 4 abuts against the cavity block 23, and the top end of the slide block 4 abuts against the bottom surface of the slide block accommodating groove 33. The spring 9 is sandwiched by the slider 4 and the fixed mold core 23 and is in a compressed state. The second draw hook 17 of the movable mould core 24 hooks the first draw hook 14.

And opening the mold to take out the product 1 after the product 1 is processed. As shown in fig. 8, the mold opening process is as follows:

the movable die plate 25 and the movable die core 24 move in the die opening direction x under the driving of the driving device. In fig. 8, the mold opening direction x is a downward direction. At this time, because the second draw hook 17 of the movable mold core 24 hooks the first draw hook 14 of the slide block 4, under the combined action of the second draw hook 17 and the first draw hook 14, the movable mold core 24 drives the slide block 4 to start sliding, that is, the slide block 4 starts to slide along with the movable mold core 24. Since the guide strip 5 of the slide block 4 is accommodated in the guide groove 31 of the fixed mold core 23, and the extending directions of the guide groove 31 and the guide strip 5 are both obliquely downward directions, i.e. are not parallel to the mold opening direction x, but form an included angle with the mold opening direction x, the slide block 4 slides in the obliquely downward direction.

At the initial stage of sliding of the slide block 4, the spring 9 is in a pre-stressed state, and the elastic force of the spring 9 is released in a delayed manner, so that the slide block 4 is pulled to slide mainly under the action of the second draw hook 17 and the first draw hook 14. At the later stage of the slider sliding, the elastic force of the spring 9 is released, and at this time, the slider 4 is pushed to slide in a diagonally downward direction mainly by the elastic force of the spring 9.

As shown in fig. 9, when the stopper groove 18 of the slider 4 abuts against the stopper hook 13 of the stationary platen 22, the slider 4 slides to the stopper position. Due to the blocking of the limiting hook 13, the sliding block 4 does not slide continuously and is clamped at the limiting position, and the core pulling process of the sliding block 4 is completed. Meanwhile, the second draw hook 17 is separated from the first draw hook 14, and the second draw hook 17 does not pull the sliding block 4 any more.

Then, as shown in fig. 10, the movable mold plate 25 and the movable mold core 24 continue to move a distance in the mold opening direction, the slide block 4 does not slide any more, the entire mold opening process is completed, and the product 1 can be taken out from the mold.

In the core-pulling structure of this embodiment, during the mold opening process, the sliding direction of the slider 4 is the closing direction h of the mold opening direction and the direction perpendicular to the mold opening direction y, that is, the slider 4 moves downward and also moves laterally. The movement of the slider 4 comprises a vertical stroke H and a horizontal stroke D. Wherein, the horizontal stroke D is determined according to the size of the die, the size and the structure of the product 1. The included angle between the closing direction and the opening direction is determined according to the size of the die, the size and the structure of the product 1 and the horizontal stroke D, and the included angle is generally in the range of 18-25 degrees.

In the core pulling structure of the embodiment, the sliding block 4 moves downwards and laterally at the same time, the sliding direction is the closing direction of the mold opening direction and the direction perpendicular to the mold opening direction, the mold stripping space of the product 1 can be made in the mold opening process, and the product 1 with no or small mold stripping is ensured not to be scratched. Through the mutual cooperation of the sliding block 4, the drag hook, the limiting hook 13 and the spring 9, the motion is stable, the control precision is high, the stability is good, and the demolding product 1 is not easy to deform. Meanwhile, the whole core pulling structure is compact in structure, and parts are easy to prepare.

Meanwhile, the inclined plane of the sliding block 4 is provided with a mounting groove, and a wear-resistant block 10 is fixed in the mounting groove. In the frequent die opening process, the wear-resistant block 10 protects the sliding block 4 and reduces the wear to the sliding block 4. The spring 9 is sleeved on the spring rod 8, so that the spring 9 can be prevented from being stressed and inclined, and the motion stability of the sliding block 4 is ensured.

The structure and operation of the present embodiment are described above, but the present invention is not limited thereto. The number of springs 9 may be one or more than three. Accordingly, the number of the spring bars 8, the spring receiving grooves 30, and the spring grooves 34 may be one or more than three. The core pulling structure of the embodiment can be a one-die two-cavity structure, two products 1 can be formed at one time, and each cavity is provided with a sliding block which comprises two lateral sliding mechanisms 3. The structure can be a structure with one cavity or more than three cavities, one or more than three products 1 can be molded at a time, and each cavity is provided with a slide block and comprises one or more than three lateral sliding mechanisms 3.

Another embodiment of the present invention further provides a mold, as shown in fig. 1, including: the core pulling structure of the above embodiment, the fixed mold base plate 20, the hot runner plate 21, the square iron 26, the ejector pin panel 27, the ejector pin base plate 28, and the movable mold base plate 29. The fixed die seat plate 20, the hot runner plate 21 and the fixed die assembly 35 form a fixed die mechanism, and the movable die assembly 36, the square iron 26, the thimble panel 27, the thimble bottom plate 28 and the movable die bottom plate 29 form a movable die mechanism.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A core pulling structure is characterized by comprising:

a movable die core (24);

the bottom surface of a first side wall (39) of the fixed die plate (22) is provided with a limiting mechanism (37);

a second side wall (40) of the fixed die core (23), which is located on the same side as the first side wall (39), is provided with a lateral sliding mechanism (3), and the lateral sliding mechanism (3) can slide relative to the limiting mechanism (37);

when the movable mould core (24) and the fixed mould core (23) are closed, the lateral sliding mechanism (3) is propped against the fixed mould core (23);

when the movable mold core (24) moves towards the mold opening direction (x), the lateral sliding mechanism (3) slides along the mold opening direction (x) and the closing direction (h) perpendicular to the mold opening direction (y) until being limited by the limiting mechanism (37).

2. The core pulling structure according to claim 1, characterized in that the second side wall (40) is provided with: a slider accommodating groove (33);

the guide groove (31) is formed in the side wall of the sliding block accommodating groove (33) and extends along the closing direction (h);

the spring groove (34) is formed in the bottom surface of the sliding block accommodating groove (33);

the lateral sliding mechanism (3) comprises:

the sliding block (4) is arranged in the sliding block accommodating groove (33);

a spring (9) disposed between the spring groove (34) and the slider (4);

under the action of the spring (9), the sliding block (4) can slide along the guide groove (31) in the closing direction (h).

3. The core pulling structure according to claim 2, characterized in that the top surface of the slider (4) is provided with a spring receiving groove (30);

the lateral sliding mechanism (3) further comprises:

a spring bar (8) fixed in the spring groove (34),

the spring (9) is sleeved on the spring rod (8), one end of the spring is accommodated in the spring groove (34), and the other end of the spring abuts against the spring accommodating groove (30) of the sliding block (4).

4. The core pulling structure according to claim 2, characterized in that a wear-resistant block (10) is fixed to the surface of the slider (4) facing the stationary platen (22).

5. The core pulling structure according to claim 2, characterized in that the sliding block (4) is provided with a limiting groove (18); when the limiting groove (18) abuts against the limiting mechanism (37), the sliding block (4) is limited by the limiting mechanism (37).

6. The structure of loosing core according to claim 1, wherein the bottom surface of the first side wall (39) is opened with a fixing groove (32);

the limit mechanism (37) includes: the limiting hook (13) is fixed in the fixing groove (32);

when the lateral sliding mechanism (3) abuts against the limiting hook (13), the lateral sliding mechanism (3) is limited by the limiting hook (13).

7. The core pulling structure according to claim 1, wherein the lateral sliding mechanism (3) and the movable die core (24) are provided with a linkage mechanism;

when the movable mould core (24) moves towards the mould opening direction (x), the lateral sliding mechanism (3) slides along with the movable mould core (24) under the action of the linkage mechanism.

8. The core pulling structure as claimed in claim 7, characterized in that the bottom surface of the lateral sliding mechanism (3) is provided with a mounting groove (19);

the link gear includes:

the first draw hook (14) is fixed in the mounting groove (19);

the second draw hook (17) is fixed on the movable mould core (24);

when the movable mould core (24) moves towards the mould opening direction (x), the second draw hook (17) pulls the first draw hook (14), so that the lateral sliding mechanism (3) slides along with the movable mould core (24).

9. The core pulling structure according to claim 8, characterized in that the second pulling hook (17) is disengaged from the first pulling hook (14) when the lateral sliding mechanism (3) is stopped by the stopping mechanism (37).

10. The core pulling structure according to claim 1, wherein an angle between the closing direction (h) and the opening direction (x) is 18 ° to 25 °.

11. A mold, comprising: the core pulling structure of any one of claims 1 to 10.