CN221271936U

CN221271936U - Composite structure of inner jacking block of straight jacking and inclined jacking of die

Info

Publication number: CN221271936U
Application number: CN202323110915.1U
Authority: CN
Inventors: 陈镇森; 杨勇刚
Original assignee: Dongguan Tathing Plastic Mold Co ltd
Current assignee: Dongguan Tathing Plastic Mold Co ltd
Filing date: 2023-11-17
Publication date: 2024-07-05
Anticipated expiration: 2033-11-17

Abstract

The utility model discloses a die straight-ejection and inclined-ejection inner ejector block composite structure, which comprises a front die assembly and a rear die assembly, wherein a die cavity for placing a product and a die water gap assembly is arranged in the front die assembly and the rear die assembly, the product is poured on the die water gap assembly, and a water gap top plate at the top of the die water gap assembly and the die water gap assembly are fixed on an ejector rod through a fixing ring; the die water gap assembly comprises a rear die core, a guide pillow position, an inclined ejection, an ejection block, a spring, an ejection stroke, a straight ejection and the like, wherein in the ejection movement process, the ejection block passes through a delay plane, the ejection stroke of the ejection block is realized in the ejection movement process, and when the ejection block passes over the upper end of the delay plane, the spring mechanically resets the ejection block. The utility model solves the problem that the product cannot be normally ejected due to complex internal structure of the product, and the die combines the straight ejector block and the oblique ejector block to realize the non-sticking oblique ejection of the product, thereby solving the problem of difficult taking of the product.

Description

Composite structure of inner jacking block of straight jacking and inclined jacking of die

Technical Field

The utility model relates to the technical field of mold manufacturing and development, in particular to a mold straight-top and inclined-top inner top block composite structure.

Background

The mold is called the master of the industry, and the mold production and development level is one of the important marks of the machine manufacturing level. With the rapid development of manufacturing industry, people have a high pursuit of quality, weight and appearance of products. The annual yield of plastic has exceeded the sum of the annual yields of steel and nonferrous metals before 10 years, and plastic products are widely used in various fields related to the national pillar industries of automobiles, electromechanics, instruments, aerospace, and the like, and daily life of people. The plastic product is formed by injection molding. The injection mold can produce products with high efficiency.

The injection mold is divided into a large water gap mold, a fine water gap mold and a hot runner mold. The prior demoulding technology has the following defects: firstly, the applicability is poor, when the internal structure of a product is complex, the ribs of the product are arranged on the inclined top, the product is stuck on the inclined top and cannot be taken out, so that the product cannot be taken out, a movable insert is required to be designed to prevent sticking, but the movable insert is required to be manually taken out and installed, so that the quality of the mould is poor, and the production period is long; secondly, the reject ratio of the product is increased, and the problems of product strain, unstable size and the like are caused when the movable insert is manually taken out due to the influence of the movable insert; thirdly, the product quality is poor, because the mould is difficult to normally produce because of the restriction of product structure, leads to the product to carry out the die sinking through cutting into two products, leads to the intensity of product, impact resistance, parameter such as equipment stability to descend, can't satisfy new energy automobile headrest intensity impact test demand. Therefore, a new composite structure of straight top and inclined top inner top blocks of a die is needed to solve the above problems.

Disclosure of utility model

The utility model provides a composite structure of a straight top and an inclined top inner top block of a die, which aims to solve at least one technical problem in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a mould straight top adds interior kicking block composite construction of oblique top, includes front mould subassembly and back mould subassembly, the inside of front mould subassembly and back mould subassembly is provided with the die cavity that supplies product and mould mouth of a river subassembly to place, the product sets up on the mould mouth of a river subassembly, front mould subassembly and back mould subassembly pass through slide bar sliding connection, the top of mould mouth of a river subassembly is provided with mouth of a river top roof, mouth of a river top roof and mould mouth of a river subassembly are fixed in on the ejector pin through the solid fixed ring;

The die water gap assembly comprises a rear die core, a guide pillow position, an inclined ejection, an ejection block, a spring and ejection strokes, wherein the inclined ejection is arranged adjacent to the rear die core, the inclined ejection is arranged on two sides of the top of the die water gap assembly, a time delay plane is arranged in the rear die core, the ejection block is arranged adjacent to the time delay plane and is arranged at the top of the inclined ejection, the spring is arranged at the bottom of the ejection block, the ejection strokes are arranged adjacent to one side of the ejection block, which is close to the rear die core, in the ejection movement process, the ejection block is pushed out to eject strokes through the time delay plane, and the spring mechanically resets the ejection block after the ejection block passes over the upper end of the time delay plane.

Preferably, both sides of the lower part of the rear mold core are provided with straight tops, and the tops of the straight tops are provided with straight top guide inclined planes.

Preferably, two sides of the middle part of the rear mold core are provided with delay planes, and the delay planes are positioned below the ejection stroke.

Preferably, the ejector rod is arranged in the middle of the rear mould core, and the rear mould core, the guide pillow position, the inclined ejector, the ejector block, the spring, the ejection stroke, the delay plane and the straight ejector guide inclined plane are all arranged in mirror symmetry along the ejector rod as the center.

Preferably, the top of the front mould assembly is provided with a top plate, an injection port is formed in the middle of the upper surface of the top plate, and a plugging screw is fixedly arranged on the upper surface of the top plate.

Preferably, the front mold assembly further includes a shroud disposed around the bottom of the top plate.

Preferably, the rear mold core is uniformly provided with a plurality of through holes.

Preferably, the rear module comprises a supporting plate, a base, square iron, a first ejector plate and a second ejector plate, wherein the supporting plate is fixedly arranged on the upper portion of the square iron, the bottom of the square iron is fixed on the base, the first ejector plate is arranged between the inner walls of the square iron, and the second ejector plate is fixedly arranged on the lower surface of the first ejector plate.

Preferably, the straight ejector and the inclined ejector are sequentially inserted on the first ejector plate and the second ejector plate.

Compared with the prior art, the die straight-top and inclined-top inner-top block composite structure provided by the utility model has the following beneficial effects:

1. The ejection and release are realized to the oblique top, and straight top and kicking block are used for propping up the product, prevent that the product from sticking to the oblique top.

2. According to the utility model, the product can be taken by the manipulator, the movable insert is not required to be taken out and installed by personnel, the plastic deformation caused by manual workpiece taking is reduced, the reject ratio is effectively reduced, and the production efficiency is improved.

3. The utility model has strong applicability, the internal structure of the product is complex, and the product can be opened by the mode of opening the die of the structure.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the utility model in the normal open mode state;

FIG. 2 is a schematic view of the overall structure of the present utility model in the normal normally closed mode;

FIG. 3 is a top view of a mold gate assembly of the present utility model;

FIG. 4 is an enlarged view of A-A of FIG. 3;

FIG. 5 is a schematic view of the structure of the product and mold nozzle assembly of the present utility model;

Fig. 6 is an exploded view of the product and mold gate assembly of the present utility model.

In the figure: 1. a front mold assembly; 11. a top plate; 12. an injection port; 13. plugging a screw; 14. coaming plate; 2. a rear module assembly; 21. a support plate; 22. a base; 23. square iron; 24. a first ejector plate; 25. a second ejector plate; 3. a product; 4. a mold gate assembly; 40. straight roof; 41. a rear mold core; 42. guiding the pillow position; 43. a pitched roof; 44. a top block; 45. a spring; 46. an ejection stroke; 47. a delay plane; 48. a straight top guiding inclined plane; 5. a slide bar; 6. a push rod; 7. a through hole; 8. a top plate at the top of the water gap; 9. and a fixing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-6, the present embodiment provides a mold straight-ejection and inclined-ejection inner-ejection block composite structure, which comprises a front mold assembly 1 and a rear mold assembly 2, wherein mold cavities for placing a product 3 and a mold nozzle assembly 4 are arranged in the front mold assembly 1 and the rear mold assembly 2, the product 3 is poured and arranged on the mold nozzle assembly 4, the front mold assembly 1 and the rear mold assembly 2 are slidably connected through a sliding rod 5, a nozzle top plate 8 is arranged at the top of the mold nozzle assembly 4, and the nozzle top plate 8 and the mold nozzle assembly 4 are fixed on a top rod 6 through a fixing ring 9;

The die water gap assembly 4 comprises a rear die core 41, a guide pillow position 42, an inclined ejection 43, an ejection block 44, a spring 45 and an ejection stroke 46, wherein the inclined ejection 43 is arranged adjacent to the rear die core 41, the inclined ejection 43 is arranged on two sides of the top of the die water gap assembly 4, a delay plane 47 is arranged in the rear die core 41, the ejection block 44 is arranged adjacent to the delay plane 47 and is arranged at the top of the inclined ejection 43, the spring 45 is arranged at the bottom of the ejection block 44, the ejection stroke 46 is arranged adjacent to one side of the ejection block 44, close to the rear die core 41, in the ejection movement process, the ejection block 44 is ejected out of the ejection stroke 46 through the delay plane 47, and after the ejection block 44 passes over the upper end of the delay plane 47, the spring 45 mechanically resets the ejection block 44.

In the embodiment, a large water gap die is adopted, the die is normally opened, the injection molding machine drives the movable die to move backwards to finish die opening, as shown in fig. 1, after the die opening, a first ejector plate 24 and a second ejector plate 25 are ejected by an ejector rod 6 of the injection molding machine, a fixed ring 9 is removed, and a water gap top plate 8 at the top of a water gap assembly 4 of the die and the water gap assembly 4 of the die are separated from the ejector rod 6; in the ejection movement process, the ejector block 44 passes through a delay plane 47 designed in the rear mold core 41, so that the ejector block 44 ejects 5-8 mm ejection stroke 46 in the ejection movement process of the inclined ejector 43, and when the ejector block 44 passes over the upper end of the delay plane 47, the spring 45 can mechanically reset the ejector block 44, so that the effect of releasing after ejection is achieved. When the ejector pins 6 of the injection molding machine are retracted, the first ejector pin plate 24 and the second ejector pin plate 25 are pulled back, and when the ejector block 44 moves forwards under the action of the guide pillow position, the ejector block 44 is reset.

In a specific embodiment, as shown in fig. 4-6, two sides of the lower portion of the rear mold core 41 are provided with a straight top 40, and a straight top guiding inclined plane 48 is provided at the top of the straight top 40; the two sides of the middle part of the rear mould core 41 are provided with delay planes 47, the ejector rod 6 is arranged in the middle part of the rear mould core 41, and the rear mould core 41, the guide pillow position 42, the inclined ejection 43, the ejection block 44, the spring 45, the ejection stroke 46, the delay planes 47 and the straight ejection guide inclined plane 48 are all arranged in mirror symmetry along the ejector rod 6 as the center.

In this embodiment, the straight ejection guiding inclined plane 48 is provided to prevent collision between the inclined ejection 43 and the straight ejection 40 during movement, and in movement, the ejection block 44 is embedded on the head of the inclined ejection 43, after the inclined ejection 43 and the straight ejection 40 eject 28mm, the ejection block 44 is delayed to be flat, the ejection is 5mm, the straight ejection 40 and the ejection block 44 are combined to simultaneously eject the product 3, the straight ejection 40 ejects the product 3 all the time during ejection, and the ejection state is ejection 100mm. The product 3 is propped up through the combination of the straight jacking 40 and the jacking block 44, the effect that the product 3 does not stick to the inclined jacking 43 is achieved, when the inclined jacking 43 is continuously ejected, after the jacking block 44 passes through the delay level, the jacking block 44 is acted by the force of the spring 45, and the jacking block 44 is retracted. Through the operation above to realize that the manipulator gets the piece, get the piece through realizing the manipulator, need not to take out and install movable mold insert through personnel and get the piece, and reduce the manual work and get the plastic deformation that causes, reduced the defective rate effectively, improved production efficiency.

In a specific embodiment, as shown in fig. 1-2, a top plate 11 is disposed on the top of the front mold assembly 1, an injection port 12 is disposed in the middle of the upper surface of the top plate 11, and a plugging screw 13 is fixedly installed on the upper surface of the top plate 11; the front mold assembly 1 further comprises a coaming 14, and the coaming 14 is arranged along the periphery of the bottom of the top plate 11.

In this embodiment, the product 3 is injected into the mold gate assembly 4 through the injection port 12, the product 3 is prevented from overflowing through the shroud 14, and the product is fixed to the mold gate assembly 4 by the stopper screws 13.

In a specific embodiment, as shown in fig. 1, 2 and 4, the rear mold core 41 is uniformly provided with a plurality of through holes 7; the rear module 2 comprises a supporting plate 21, a base 22, square iron 23, a first ejector plate 24 and a second ejector plate 25, wherein the supporting plate 21 is fixedly arranged on the upper part of the square iron 23, the bottom of the square iron 23 is fixedly arranged on the base 22, the first ejector plate 24 is arranged between the inner walls of the square iron 23, and the second ejector plate 25 is fixedly arranged on the lower surface of the first ejector plate 24; the straight ejector 40 and the inclined ejector 43 are sequentially inserted on the first ejector plate 24 and the second ejector plate 25.

In this embodiment, by providing the square iron 23, the square iron 23 is provided in two pieces, and the first ejector plate 24 and the second ejector plate 25 are limited by the two square irons 23, so that the first ejector plate 24 and the second ejector plate 25 are prevented from being separated to cause ejection failure of the product 3.

The working principle or working process of the utility model is as follows: the method comprises the steps of using a large water gap die to open the die normally, firstly, driving a movable die to move backwards by an injection molding machine to complete die opening, ejecting a first ejector plate 24 and a second ejector plate 25 by an ejector rod 6 of the injection molding machine after die opening, and removing a fixed ring 9, wherein a water gap top plate 8 at the top of a water gap assembly 4 of the die and the water gap assembly 4 of the die are separated from the ejector rod 6; in the ejection movement process, the ejector block 44 passes through a delay plane 47 designed in the rear mold core 41, so that the ejector block 44 pushes against the product 5-8 mm ejection stroke 46 in the ejection movement process, and when the ejector block 44 passes over the upper end of the delay plane 47, the spring 45 mechanically resets the ejector block 44, so that the effect of releasing after ejection is achieved. When the ejector pins 6 of the injection molding machine are retracted, the first ejector pin plate 24 and the second ejector pin plate 25 are pulled back, and when the ejector block 44 moves forwards under the action of the guide pillow position, the ejector block 44 is reset. The straight top guiding inclined plane 48 is provided to prevent collision between the inclined top 43 and the straight top 40 during movement, and the straight top 40 and the top block 44 are combined to support the product 3, so that the effect that the product 3 does not adhere to the inclined top 43 is achieved. Thereby realizing the picking of the mechanical arm. The above mold structure is used for production, and the action of tripping the side inclined roof 43 and combining the roof block 44 and the straight roof 40 is completed. The method effectively solves the difficulty of demolding of the product and provides a new demolding method for the product. The utility model is suitable for products with complex internal structure and difficult demolding, has strong applicability and meets the requirements of customers.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A mould straight top adds interior kicking block composite construction of oblique top, its characterized in that: the mold comprises a front mold assembly (1) and a rear mold assembly (2), wherein a mold cavity for placing a product (3) and a mold water gap assembly (4) is arranged in the front mold assembly (1) and the rear mold assembly (2), the product (3) is arranged on the mold water gap assembly (4), the front mold assembly (1) and the rear mold assembly (2) are in sliding connection through a sliding rod (5), a water gap top plate (8) is arranged at the top of the mold water gap assembly (4), and the water gap top plate (8) and the mold water gap assembly (4) are fixed on a top rod (6) through a fixing ring (9);

The die water gap assembly (4) comprises a rear die core (41), a guide pillow position (42), an inclined ejection (43), an ejection block (44), a spring (45) and an ejection stroke (46), wherein the inclined ejection (43) is arranged adjacent to the rear die core (41), the inclined ejection (43) is arranged on two sides of the top of the die water gap assembly (4), a time delay plane (47) is arranged in the rear die core (41), the ejection block (44) is arranged adjacent to the time delay plane (47) and is arranged at the top of the inclined ejection (43), the spring (45) is arranged at the bottom of the ejection block (44), the ejection stroke (46) is close to one side of the rear die core (41) and is arranged adjacent to the ejection block (44) in the ejection movement process, the ejection block (44) is used for ejecting the ejection stroke (46) in the ejection movement process of the inclined ejection block (43) beyond the time delay plane (47), and the ejection block (44) is reset to the spring (45).

2. The die straight ejection and oblique ejection inner ejection block composite structure according to claim 1, wherein: the two sides of the lower part of the rear mold core (41) are respectively provided with a straight top (40), and the top of the straight top (40) is provided with a straight top guide inclined plane (48).

3. The die straight ejection and oblique ejection inner ejection block composite structure according to claim 1, wherein: and delay planes (47) are arranged on two sides of the middle part of the rear mold core (41), and the delay planes (47) are positioned below the ejection stroke (46).

4. The die straight ejection and oblique ejection inner ejection block composite structure according to claim 1, wherein: the ejector rod (6) is arranged in the middle of the rear die core (41), and the rear die core (41), the guide pillow position (42), the inclined ejector (43), the ejector block (44), the spring (45), the ejection stroke (46), the delay plane (47) and the straight ejector guide inclined plane (48) are arranged in mirror symmetry along the ejector rod (6) as the center.

5. The die straight ejection and oblique ejection inner ejection block composite structure according to claim 1, wherein: the top of front mould subassembly (1) is provided with roof (11), injection mouth (12) have been seted up at the upper surface middle part of roof (11), the upper surface fixed mounting of roof (11) has stopper screw (13).

6. The die straight ejection and oblique ejection inner ejection block composite structure of claim 5, wherein: the front mould assembly (1) further comprises a coaming (14), and the coaming (14) is arranged around the bottom of the top plate (11).

7. The die straight ejection and oblique ejection inner ejection block composite structure according to claim 1, wherein: a plurality of through holes (7) are uniformly formed in the rear die core (41).

8. The die straight ejection and oblique ejection inner ejection block composite structure according to claim 2, wherein: the rear module assembly (2) comprises a supporting plate (21), a base (22), square iron (23), a first ejector plate (24) and a second ejector plate (25), wherein the supporting plate (21) is fixedly arranged on the upper portion of the square iron (23), the bottom of the square iron (23) is fixed on the base (22), the first ejector plate (24) is arranged between the inner walls of the square iron (23), and the second ejector plate (25) is fixedly arranged on the lower surface of the first ejector plate (24).

9. The die straight ejection and oblique ejection inner ejection block composite structure of claim 8, wherein: the straight ejector (40) and the inclined ejector (43) are sequentially inserted on the first ejector plate (24) and the second ejector plate (25).