CN216782554U

CN216782554U - Pouring ejection stress decentralized balancing device

Info

Publication number: CN216782554U
Application number: CN202123295432.4U
Authority: CN
Inventors: 洪华; 张亮; 胡星
Original assignee: Nanjing Pinzhen Precision Mould Co ltd
Current assignee: Nanjing Pinzhen Precision Mould Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-21
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a pouring ejection stress dispersion balancing device, which relates to the technical field of pouring ejection and comprises a device main body, wherein a cross groove column is fixedly arranged on the inner bottom surface of the device main body, a push plate mechanism is arranged on the cross groove column, a top cover plate is arranged at the inner top of the device main body, a lifting plate is arranged below the top cover plate, a plurality of groups of ejector pins are fixedly connected to the upper surface of the lifting plate, ejector caps are clamped at the upper ends of the plurality of groups of ejector pins, a buffer mechanism is arranged between the lifting plate and the top cover plate, the push plate mechanism comprises four groups of first inclined plates and four groups of second inclined plates, and a first moving block is arranged on the lower sides of the four groups of first inclined plates; the ejector pin has the advantages that the function of balanced ejection is realized, the operation is convenient and fast, the qualification rate of the cast finished product is improved, the damage of the cast finished product caused by the over-high lifting speed of the ejector pin can be avoided, the ejector pin has a good buffering and protecting function, and the qualification rate of the cast finished product is further improved.

Description

Pouring ejection stress decentralized balancing device

Technical Field

The utility model relates to the technical field of casting and ejection, in particular to a casting and ejection stress decentralized balancing device.

Background

An injection mold is a tool for producing plastic products, and is also a tool for giving the plastic products complete structures and precise dimensions. Often, the plastic product can be adsorbed in the female die, which causes difficulty in taking out the plastic product, and in order to smoothly take out the plastic product from the female die, a material ejecting device is added below the female die, and the ejector pin can cause deformation of the plastic product due to uneven stress, thereby reducing the qualified rate of the plastic product.

Through retrieval, chinese patent No. CN202020385681.9 discloses a balanced type fast ejection device for an injection mold, which reduces the pressure on the surface of an injection-molded workpiece compared with a conventional ejector pin structure, prevents the occurrence of damage to the injection-molded workpiece, improves the product quality, enhances the structural strength, and greatly increases the service life, but usually fails to eject the finished product in a balanced manner, is inconvenient to operate, and the ejector pin has no good buffering protection function because the ejector pin is too fast in lifting speed, thereby reducing the qualification rate of the poured finished product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pouring ejection stress decentralized balancing device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a pouring is ejecting atress and is disperseed balancing unit, includes the device main part, the inside bottom surface fixed mounting of device main part has cross groove post, be provided with push pedal mechanism on the cross groove post, the interior top of device main part is provided with the lamina tecti, the below of lamina tecti is provided with the lifter plate, the last fixed surface of lifter plate is connected with a plurality of groups thimble, a plurality of groups the top cap has all been clamped to the upper end of thimble, be provided with buffer gear between lifter plate and the lamina tecti.

As a further scheme of the utility model, the push plate mechanism comprises four groups of first inclined plates and four groups of second inclined plates, a first moving block is arranged at the lower side of each of the four groups of first inclined plates, a first hinge is connected between each of the four groups of first inclined plates and each of the four groups of first movable blocks, a second hinge is connected between each of the two groups of first inclined plates, a second moving block is arranged at the lower side of each of the four groups of second inclined plates, a third hinge is connected between each of the four groups of second inclined plates and each of the four groups of second movable blocks, a fourth hinge is connected between each of the two groups of second inclined plates, a micro motor is fixedly installed at the middle position of the bottom of one side of the device main body, a first threaded shaft is installed at the output end of the micro motor, a first gear is fixedly sleeved on the outer side surface of the first threaded shaft close to the middle position, and a second gear is arranged at the middle position inside the cross grooved column, one side of No. two gears runs through and is provided with No. two threaded shafts.

By adopting the technical scheme, the following technical effects can be achieved: the lifting plate can be conveniently lifted for use.

As a further scheme of the utility model, the four first inclined plates are respectively and movably connected with the four first moving blocks through first hinges, the four second inclined plates are respectively and movably connected with the four second moving blocks through third hinges, and the two second hinges and the two fourth hinges are both movably connected to the lower surface of the lifting plate.

By adopting the technical scheme, the following technical effects can be achieved: the connection of the first inclined plate and the second inclined plate is convenient.

As a further scheme of the utility model, symmetrical thread sections are arranged on the outer side surfaces of the first threaded shaft and the second threaded shaft close to two sides, threaded holes are formed in one sides of four groups of first moving blocks and one side of four groups of second moving blocks in a penetrating mode, the four groups of first moving blocks and the four groups of second moving blocks are in threaded connection with the first threaded shaft and the second threaded shaft through the threaded holes respectively, and the four groups of first moving blocks and the four groups of second moving blocks are located inside the cross grooved columns.

By adopting the technical scheme, the following technical effects can be achieved: the first moving block and the second moving block can be conveniently moved and used.

As a further scheme of the utility model, the buffer mechanism comprises a compression spring, vertical rods are fixedly arranged at positions, close to corners, of the inner bottom surface of the device main body, two groups of baffle rings are sleeved on the outer side surfaces, close to the top, of the four groups of vertical rods, and elastic ring pads are sleeved on the outer side surfaces, close to the bottom, of the four groups of vertical rods.

By adopting the technical scheme, the following technical effects can be achieved: the installation and the use of the elastic ring cushion are convenient.

As a further scheme of the utility model, a plurality of groups of compression springs are respectively sleeved on the outer sides of a plurality of groups of ejector pins, the plurality of groups of ejector pins and a plurality of groups of ejector caps are uniformly distributed on the upper side of the lifting plate at equal distances, the top cover plate is positioned inside two groups of baffle rings, and the two groups of baffle rings are in threaded connection with the top of the outer side of the vertical rod.

By adopting the technical scheme, the following technical effects can be achieved: the buffer use of thimble is convenient for.

Compared with the prior art, the utility model has the beneficial effects that:

1. the first threaded shaft and the first gear are driven to rotate by starting a micro motor on one side of the device body, so that two groups of first moving blocks on two sides of the first gear are driven to respectively and relatively move under the matching of a threaded hole and a symmetrical threaded end, four groups of first inclined plates are respectively and continuously inclined under the matching of a first hinge and a second hinge, and simultaneously, the second threaded shaft is driven to rotate under the meshing action of the first gear and the second gear, so that two groups of second moving blocks on two sides of the second gear are respectively and relatively moved, and four groups of second inclined plates are respectively and continuously inclined under the matching of a third hinge and a fourth hinge, so that the lifting plate is driven to horizontally and stably move upwards until a plurality of groups of top caps are contacted with a poured finished product, the stress of a plurality of groups of top pins is the same and is dispersed, the function of balanced ejection is realized, and the operation is convenient, the qualification rate of the cast finished product is improved.

2. When the finished casting product is ejected, the compression springs on the outer sides of the plurality of groups of thimbles respectively block the rising movement of the thimbles through contraction, meanwhile, the elastic ring pads on the outer sides of the four groups of vertical rods can be continuously compressed respectively to block the rising of the lifting plate, the damage to the finished casting product caused by the overhigh rising speed of the thimbles can be avoided, the fine buffer protection function is realized, and the qualified rate of the finished casting product is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal connection structure of the present invention.

Fig. 3 is a schematic view of a connection structure of a first threaded shaft and a second threaded shaft according to the present invention.

Fig. 4 is a schematic top view of the present invention.

In the figure: 1. a device main body; 2. a cross slot post; 3. a micro motor; 4. a first threaded shaft; 5. a first gear; 6. a first moving block; 7. a first inclined plate; 8. a first hinge; 9. a second hinge; 10. a second threaded shaft; 11. a second gear; 12. a second moving block; 13. a second inclined plate; 14. a third hinge; 15. a fourth hinge; 16. a lifting plate; 17. a thimble; 18. a top cap; 19. a top cover plate; 20. a vertical rod; 21. a baffle ring; 22. an elastic ring pad; 23. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1:

referring to fig. 1-4, the present invention provides a technical solution: a pouring ejection stress decentralized balancing device comprises a device main body 1, wherein a cross groove column 2 is fixedly installed on the inner bottom surface of the device main body 1, a push plate mechanism is arranged on the cross groove column 2, a top cover plate 19 is arranged on the inner top of the device main body 1, a lifting plate 16 is arranged below the top cover plate 19, a plurality of groups of ejector pins 17 are fixedly connected to the upper surface of the lifting plate 16, ejector caps 18 are clamped at the upper ends of the groups of ejector pins 17, and a buffer mechanism is arranged between the lifting plate 16 and the top cover plate 19;

in this embodiment, referring to fig. 1-4, the push plate mechanism includes four sets of first inclined plates 7 and four sets of second inclined plates 13, a first moving block 6 is disposed on the lower side of each of the four sets of first inclined plates 7, a first hinge 8 is connected between each of the four sets of first inclined plates 7 and each of the four sets of second movable blocks 6, a second hinge 9 is connected between each of the two sets of first inclined plates 7, a second moving block 12 is disposed on the lower side of each of the four sets of second inclined plates 13, a third hinge 14 is connected between each of the four sets of second inclined plates 13 and each of the four sets of second movable blocks 12, a fourth hinge 15 is connected between each of the two sets of second inclined plates 13, a micro motor 3 is fixedly disposed at the middle position of the bottom of one side of the device main body 1, a first threaded shaft 4 is disposed at the output end of the micro motor 3, a first gear 5 is fixedly sleeved on the outer side surface of the first threaded shaft 4, a second gear 11 is disposed at the middle position inside the cross grooved column 2, a second threaded shaft 10 penetrates through one side of a second gear 11, four groups of first inclined plates 7 are movably connected with four groups of first moving blocks 6 through first hinges 8, four groups of second inclined plates 13 are movably connected with four groups of second moving blocks 12 through third hinges 14, two groups of second hinges 9 and two groups of fourth hinges 15 are movably connected to the lower surface of a lifting plate 16, symmetrical thread sections are arranged on the outer side surfaces, close to two sides, of a first threaded shaft 4 and the outer side surface of a second threaded shaft 10, threaded holes are formed in one sides of the four groups of first moving blocks 6 and the four groups of second moving blocks 12 in a penetrating mode, the four groups of first moving blocks 6 and the four groups of second moving blocks 12 are in threaded connection with the first threaded shaft 4 and the second threaded shaft 10 through the threaded holes, and the four groups of first moving blocks 6 and the four groups of second moving blocks 12 are located inside a cross grooved column 2;

specifically, when in use, the micro motor 3 on one side of the main body 1 of the starting device drives the first threaded shaft 4 and the first gear 5 to rotate, so that the two groups of first moving blocks 6 on two sides of the first gear 5 are driven to respectively and relatively move under the matching of the threaded hole and the symmetrical threaded end, the four groups of first tilting plates 7 are respectively and continuously tilted under the matching of the first hinge 8 and the second hinge 9, meanwhile, the second threaded shaft 10 is driven to rotate under the meshing action of the first gear 5 and the second gear 11, so that the two groups of second moving blocks 12 on two sides of the second gear 11 are respectively and relatively moved, the four groups of second tilting plates 13 are respectively tilted under the matching of the third hinge 14 and the fourth hinge 15, so as to drive the lifting plate 16 to continuously and stably move upwards horizontally until a plurality of groups of top caps 18 are contacted with finished products, and the stress of a plurality of top pins 17 is the same and dispersed, the function of balanced ejection is realized, the operation is convenient, and the qualification rate of the cast finished product is improved.

Example 2:

this embodiment is shown in fig. 2, and the present invention provides a technical solution: a pouring ejection stress decentralized balancing device also comprises a buffer mechanism, wherein the buffer mechanism comprises compression springs 23, vertical rods 20 are fixedly mounted on the inner bottom surface of a device main body 1 close to corners, two groups of baffle rings 21 are sleeved on the outer side surfaces of four groups of vertical rods 20 close to the tops, elastic ring cushions 22 are sleeved on the outer side surfaces of four groups of vertical rods 20 close to the bottoms, a plurality of groups of compression springs 23 are respectively sleeved on the outer sides of a plurality of groups of ejector pins 17, a plurality of groups of ejector pins 17 and a plurality of groups of ejector caps 18 are uniformly distributed on the upper side of a lifting plate 16 at equal distances, a top cover plate 19 is positioned inside the two groups of baffle rings 21, and the two groups of baffle rings 21 are in threaded connection with the tops of the outer sides of the vertical rods 20;

specifically, on the basis of embodiment 1, when the cast product is ejected, the compression springs 23 on the outer sides of the plurality of groups of ejector pins 17 respectively hinder the ascending movement of the ejector pins 17 through contraction, and meanwhile, the elastic ring pads 22 on the outer sides of the four groups of vertical rods 20 are respectively and continuously compressed to hinder the ascending movement of the lifting plate 16, so that the damage to the cast product due to the excessively high ascending speed of the ejector pins 17 can be avoided, a good buffering protection function is provided, and the qualification rate of the cast product is further improved.

The working principle is as follows: for the utility model, firstly, a worker clamps a top cover plate 19 on the inner top of a device main body 1 through four groups of vertical rods 20 and eight groups of baffle rings 21, and installs the device on the lower side of a concave film of a mold, when in use, a micro motor 3 on one side of the device main body 1 is started to drive a first threaded shaft 4 and a first gear 5 in a cross grooved column 2 to rotate together, so that two groups of first moving blocks 6 on two sides of the first gear 5 are driven to move relatively respectively under the matching of a threaded hole and a symmetrical threaded end, further, four groups of first inclined plates 7 are respectively inclined continuously under the matching of a first hinge 8 and a second hinge 9, and simultaneously, a second threaded shaft 10 is driven to rotate in the cross grooved column 2 under the meshing action of the first gear 5 and a second gear 11, so that two groups of second moving blocks 12 on two sides of the second gear 11 are driven to move relatively respectively, further, four groups of second plates 13 are respectively inclined under the matching of a third hinge 14 and a fourth hinge 15, the lifting plate 16 is driven to move upwards in a horizontal stable mode until a plurality of groups of ejector caps 18 are in contact with a finished casting product, the stress of the plurality of groups of ejector pins 17 is the same and dispersed, the balanced ejection function is achieved, the operation is convenient and fast, the qualification rate of the finished casting product is improved, when the finished casting product is ejected, compression springs 23 on the outer sides of the plurality of groups of ejector pins 17 respectively obstruct the ascending movement of the ejector pins 17 through contraction, meanwhile, elastic ring pads 22 on the outer sides of the four groups of vertical rods 20 can be respectively and continuously compressed to obstruct the ascending of the lifting plate 16, the damage to the finished casting product due to the fact that the ascending speed of the ejector pins 17 is too fast can be avoided, the lifting plate has a good buffering protection function, the qualification rate of the finished casting product is further improved, and the operation is completed.

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 person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a pouring ejection stress decentralized balancing unit, includes device main part (1), its characterized in that, the inside bottom surface fixed mounting of device main part (1) has cross groove post (2), be provided with push pedal mechanism on cross groove post (2), the interior top of device main part (1) is provided with lamina tecti (19), the below of lamina tecti (19) is provided with lifter plate (16), the last fixed surface of lifter plate (16) is connected with a plurality of groups thimble (17), and a plurality of groups the upper end of thimble (17) all clamps hood (18), be provided with buffer gear between lifter plate (16) and lamina tecti (19).

2. The pouring ejection stress dispersion balancing device according to claim 1, wherein the push plate mechanism comprises four sets of first inclined plates (7) and four sets of second inclined plates (13), a first moving block (6) is arranged on the lower sides of the four sets of first inclined plates (7), first hinges (8) are respectively connected between the four sets of first inclined plates (7) and the four sets of first moving blocks (6), a second hinge (9) is connected between two sets of first inclined plates (7), a second moving block (12) is arranged on the lower sides of the four sets of second inclined plates (13), third hinges (14) are respectively connected between the four sets of second inclined plates (13) and the four sets of second moving blocks (12), a fourth hinge (15) is connected between the two sets of second inclined plates (13), and a micro motor (3) is fixedly mounted at the middle position of the bottom of one side of the device body (1), a threaded shaft (4) is installed to the output of micro motor (3), gear (5) has been cup jointed near the intermediate position is fixed to the lateral surface of a threaded shaft (4), the inside intermediate position of cross groove post (2) is provided with No. two gears (11), one side of No. two gears (11) is run through and is provided with No. two threaded shaft (10).

3. The pouring ejection stress dispersion balancing device according to claim 2, wherein four sets of the first inclined plates (7) are movably connected with four sets of the first moving blocks (6) through first hinges (8) respectively, four sets of the second inclined plates (13) are movably connected with four sets of the second moving blocks (12) through third hinges (14) respectively, and two sets of the second hinges (9) and two sets of the fourth hinges (15) are movably connected to the lower surface of the lifting plate (16).

4. The pouring and ejecting stress dispersion balancing device according to claim 2, wherein symmetrical thread sections are arranged on the outer side surfaces of the first threaded shaft (4) and the second threaded shaft (10) close to two sides, threaded holes are formed in one sides of the four groups of first moving blocks (6) and four groups of second moving blocks (12) in a penetrating mode, the four groups of first moving blocks (6) and the four groups of second moving blocks (12) are in threaded connection with the first threaded shaft (4) and the second threaded shaft (10) through the threaded holes respectively, and the four groups of first moving blocks (6) and the four groups of second moving blocks (12) are located inside the cross grooved column (2).

5. The pouring ejection stress dispersion balancing device according to claim 1, wherein the buffering mechanism comprises compression springs (23), vertical rods (20) are fixedly mounted on the inner bottom surface of the device body (1) near the corners, two groups of baffle rings (21) are sleeved on the outer side surfaces of the four groups of vertical rods (20) near the top, and elastic ring pads (22) are sleeved on the outer side surfaces of the four groups of vertical rods (20) near the bottom.

6. The pouring ejection stress dispersion balancing device according to claim 5, wherein a plurality of groups of compression springs (23) are respectively sleeved outside a plurality of groups of ejector pins (17), a plurality of groups of ejector pins (17) and a plurality of groups of ejector caps (18) are uniformly distributed on the upper side of the lifting plate (16) at equal distances, the top cover plate (19) is positioned inside two groups of baffle rings (21), and two groups of baffle rings (21) are in threaded connection with the tops of the outer sides of the vertical rods (20).