CN219543925U - Ejector pin type injection mold - Google Patents

Abstract

The utility model relates to the technical field of injection molds, and discloses a thimble type injection mold, which solves the technical problems that a push rod and a push plate can push a forming plate and demolding the forming plate by respectively driving a hydraulic rod and two motors, but the hydraulic rod and the two motors are required to be respectively controlled, and the working synchronism of the two motors is difficult to be ensured; the device comprises a backup plate, a fixed die and a movable die, wherein the fixed die is fixedly arranged at the bottom of one side of the backup plate, an electric push rod is fixedly arranged at the top of one side of the backup plate, an end plate is fixedly connected with a telescopic rod of the electric push rod, the movable die is fixedly arranged at the bottom end of the end plate, two first ejector pins are slidably connected with the fixed die, and two second ejector pins are slidably connected with the movable die; according to the utility model, the movable mold and the fixed mold can be closed by controlling the telescopic rod of the electric push rod to shrink, the first vertical plate and the second vertical plate can be supported by the springs, the stability of the first thimble and the second thimble can be kept, and the mold opening movement can be performed by controlling the telescopic rod of the electric push rod to stretch.

Description

Ejector pin type injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a thimble type injection mold.

Background

The injection molding method has the advantages of high production speed, high efficiency, automation in operation, multiple colors, various shapes, large size, small size, accurate product size, easy updating of products, and capability of forming products with complex shapes, and is suitable for the molding processing fields of mass production, products with complex shapes and the like, and the injection mold ejects the products by using the ejector pins, thereby facilitating stripping of the products;

according to the injection mold with the line-position ejector pin structure provided by the Chinese patent grant publication No. CN214926767U, the ejector rod and the push plate can be respectively driven to push the forming plate and release the mold by driving the hydraulic rod and the two motors, but the hydraulic rod and the two motors are required to be respectively controlled, the working synchronism of the two motors is difficult to ensure, the production cost and the use cost are increased by adding the two motors, and once the hydraulic rod and the two motors are damaged, the maintenance is inconvenient.

Disclosure of Invention

The utility model provides a thimble type injection mold, which solves the technical problems that a push rod and a push plate can push a forming plate to be demolded by respectively driving a hydraulic rod and two motors, but the hydraulic rod and the two motors are required to be respectively controlled, and the working synchronism of the two motors is difficult to ensure.

In order to solve the technical problems, the ejector pin type injection mold provided by the utility model comprises a backup plate, a fixed mold and a movable mold, wherein the fixed mold is fixedly arranged at the bottom of one side of the backup plate, an electric push rod is fixedly arranged at the top of one side of the backup plate, an end plate is fixedly connected with a telescopic rod of the electric push rod, the bottom of the end plate is fixedly provided with the movable mold, the fixed mold is slidably connected with two first ejector pins, the movable mold is slidably connected with two second ejector pins, springs are respectively sleeved on the surfaces of the two first ejector pins and the surfaces of the two second ejector pins, a bump is fixedly arranged at one end of the first ejector pin and one end of the two second ejector pins, one side of the backup plate and one side of the movable mold are respectively provided with a first vertical plate and a second vertical plate, the other ends of the two first ejector pins and one ends of the two second ejector pins are respectively fixedly connected with the first vertical plate and the second vertical plate, the top of one side of the end plate and the top of one side of the end plate are respectively fixedly provided with a first transverse plate and a second transverse plate, the two ends of the first guide pins and the two guide sleeves are respectively fixedly connected with two sides of the first guide rails and the two guide rails are respectively arranged at two sides of the first guide rails and the two guide rails are respectively fixedly connected with two guide rails.

Preferably, forming grooves are formed in one side of the fixed die and one side of the movable die, two forming grooves are connected with two rod grooves, two first ejector pins and two second ejector pins are respectively in sliding connection with four rod grooves, and an injection nozzle is fixedly arranged on the surface of the fixed die.

Preferably, the two sides of the backup plate and the two sides of the movable mould are fixedly provided with supporting plates, and the middle parts of one side of the four supporting plates are fixedly connected with one ends of the two guide sleeves and one ends of the two guide posts respectively.

Preferably, the top of the backup plate is provided with a plate groove, and the first transverse plate is in sliding connection with the plate groove.

Preferably, two through holes are formed in the surface of the backup plate, and the two first ejector pins are respectively connected with the two through holes in a sliding mode.

Preferably, the first vertical plate and the second vertical plate are made of stainless steel materials, and cushion blocks are fixedly arranged in the middle of one side of the first vertical plate and the middle of one side of the second vertical plate.

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

the utility model provides a thimble type injection mold, which can enable a movable mold to be clamped with a fixed mold by controlling the telescopic rod of an electric push rod to shrink, can enable injection molding movement to be performed through an injection nozzle, can support a first vertical plate and a second vertical plate through a spring, can keep the stability of the first thimble and the second thimble, can enable mold opening movement to be performed by controlling the telescopic rod of the electric push rod, can increase the distance between the fixed mold and the movable mold, and can enable an injection molding part to be ejected out of the fixed mold by pushing two first thimbles through the first vertical plate when the injection molding part is clamped in a molding groove of the fixed mold;

when the fixed die and the movable die are controlled to be closed and opened by the electric push rod, the two guide sleeves and the two guide posts can guide the fixed die and the movable die, so that the position precision and stability between the fixed die and the movable die can be ensured, the fixed die and the movable die are not easy to deviate, an injection molding piece can drop after the fixed die and the movable die are opened, and after the fixed die and the movable die are controlled to be closed again, the spring can push the first ejector pin and the second ejector pin to reset by the first vertical plate and the second vertical plate.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic cross-sectional view of a stationary mold according to the present utility model;

fig. 4 is a schematic structural view of the back plate of the present utility model.

Reference numerals in the drawings: 1. a backup plate; 2. a fixed mold; 3. an electric push rod; 4. an end plate; 5. a movable mold; 6. a first thimble; 7. a second thimble; 8. a bump; 9. a spring; 10. a first vertical plate; 11. a second vertical plate; 12. a forming groove; 13. a first cross plate; 14. a first push plate; 15. a second cross plate; 16. a second push plate; 17. a cushion block; 18. a plate groove; 19. a through hole; 20. guide sleeve; 21. a guide post; 22. a support plate; 23. and (5) an injection nozzle.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a thimble type injection mold, including backup plate 1, cover half 2 and movable mould 5, the fixed cover half 2 that is equipped with in bottom of backup plate 1 one side, the fixed electric push rod 3 that is equipped with in top of backup plate 1 one side, the telescopic link fixedly connected with end plate 4 of electric push rod 3, the bottom fixed of end plate 4 is equipped with movable mould 5, cover half 2 sliding connection has two first thimble 6, movable mould 5 sliding connection has two second thimble 7, the surface of two first thimble 6 and the surface of two second thimble 7 all overlap and are equipped with spring 9, the one end of two first thimble 6 and the one end of two second thimble 7 all are fixed and are equipped with lug 8, one side of backup plate 1 and one side of movable mould 5 are equipped with first riser 10 and second riser 11 respectively, the other end of two first thimble 6 and the other end of two second thimble 7 respectively with first riser 10 and second riser 11 fixed connection, the top of one side of backup plate 1 and one side of end plate 4 respectively is equipped with first diaphragm 13 and second riser 15, the first side of first thimble 13 and second riser 15 can both sides are equipped with the guide pin bushing 20 through the first riser 10 and second riser 15, the two sides of movable mould 20 can both sides are connected with first riser 20, the guide pin bushing 20 can both sides through the first riser 20 and second riser 5, both sides 20 can be kept through the first riser 20 and second riser 7 and second riser 20.

Referring to fig. 1 and 3, a molding groove 12 is formed in one side of a fixed mold 2 and one side of a movable mold 5, two molding grooves 12 are connected with two rod grooves, two first ejector pins 6 and two second ejector pins 7 are respectively in sliding connection with four rod grooves, an injection nozzle 23 is fixedly arranged on the surface of the fixed mold 2, and injection molding can be performed through the injection nozzle 23.

Referring to fig. 1, support plates 22 are fixedly arranged on both sides of the backup plate 1 and both sides of the movable mold 5, and the middle parts of one sides of the four support plates 22 are fixedly connected with one ends of two guide sleeves 20 and one ends of two guide posts 21 respectively, so that the guide sleeves 20 and the guide posts 21 can be supported by the support plates 22.

Referring to fig. 2 and 3, the top of the backup plate 1 is provided with a plate groove 18, the first transverse plate 13 is slidably connected with the plate groove 18, and the first transverse plate 13 can be guided through the plate groove 18, so that the horizontal movement of the first transverse plate 13 can be ensured.

Referring to fig. 3 and 4, two through holes 19 are formed in the surface of the backup plate 1, the two first ejector pins 6 are respectively connected with the two through holes 19 in a sliding manner, and horizontal movement of the first ejector pins 6 can be ensured through the through holes 19.

Referring to fig. 3, the first vertical plate 10 and the second vertical plate 11 are made of stainless steel materials, cushion blocks 17 are fixedly arranged at the middle part of one side of the first vertical plate 10 and the middle part of one side of the second vertical plate 11, and after the springs 9 are compressed, pressure can be transmitted through the cushion blocks 17.

In summary, in the utility model, a worker firstly controls the telescopic rod of the electric push rod 3 to shrink, so that the movable mould 5 and the fixed mould 2 are clamped, the springs 9 can support the first vertical plate 10 and the second vertical plate 11, the stability of the first thimble 6 and the second thimble 7 can be kept, then the injection molding mouth 23 is used for injection molding, after injection molding, the worker controls the telescopic rod of the electric push rod 3 to stretch, the movable mould 5 and the fixed mould 2 are opened, the distance between the fixed mould 2 and the movable mould 5 can be increased, when the injection molding is clamped in the molding groove 12 of the fixed mould 2, the first push plate 14 can push the two first thimbles 6 through the first vertical plate 10, the injection molding can be ejected out from the fixed mould 2, and when the injection molding is clamped in the molding groove 12 of the movable mould 5, the second push plate 16 can push two second ejector pins 7 through the second vertical plate 11, can eject the injection molding part from the movable mold 5, is convenient to discharge the injection molding part rapidly, in the process, the two guide sleeves 20 and the two guide columns 21 can guide the fixed mold 2 and the movable mold 5, the position precision and stability between the fixed mold 2 and the movable mold 5 can be ensured, the fixed mold 2 and the movable mold 5 are not easy to deviate, the telescopic rod of the electric push rod 3 is controlled to shrink again, the fixed mold 2 and the movable mold 5 are clamped, the first push plate 14 and the second push plate 16 can stop pressing the first vertical plate 10 and the second vertical plate 11, and the spring 9 can push the first ejector pin 6 and the second ejector pin 7 to reset through the first vertical plate 10 and the second vertical plate 11.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a thimble type injection mold, includes backup plate (1), cover half (2) and movable mould (5), its characterized in that: the bottom of backup plate (1) one side is fixed and is equipped with cover half (2), the fixed electricity push rod (3) that is equipped with in top of backup plate (1) one side, the telescopic link fixedly connected with end plate (4) of electricity push rod (3), the bottom mounting of end plate (4) is equipped with movable mould (5), cover half (2) sliding connection has two first thimble (6), movable mould (5) sliding connection has two second thimble (7), two the surface of first thimble (6) and the surface of two second thimble (7) all overlap and are equipped with spring (9), two the one end of first thimble (6) and the one end of two second thimble (7) are all fixed and are equipped with lug (8), one side of backup plate (1) and one side of movable mould (5) are equipped with first riser (10) and second riser (11) respectively, two the other end of first thimble (6) and two second thimble (7) respectively with first riser (10) and second riser (11) and fixed connection's (13) of top of first thimble (1) and second riser (7) respectively, one side of backup plate (1) and one side of second riser (15) and one side of being equipped with first riser (13) and second riser (15) respectively, guide sleeves (20) are arranged on two sides of the backup plate (1), guide posts (21) are arranged on two sides of the movable die (5), and the two guide posts (21) are respectively connected with the two guide sleeves (20) in a sliding mode.

2. The ejector pin type injection mold according to claim 1, wherein forming grooves (12) are formed in one side of the fixed mold (2) and one side of the movable mold (5), two forming grooves (12) are connected with two rod grooves, two first ejector pins (6) and two second ejector pins (7) are respectively in sliding connection with four rod grooves, and an injection nozzle (23) is fixedly arranged on the surface of the fixed mold (2).

3. The ejector pin type injection mold according to claim 1, wherein the support plates (22) are fixedly arranged on both sides of the backup plate (1) and both sides of the movable mold (5), and the middle parts of one side of four support plates (22) are fixedly connected with one ends of two guide sleeves (20) and one ends of two guide posts (21) respectively.

4. The ejector pin type injection mold according to claim 1, wherein a plate groove (18) is formed in the top of the backup plate (1), and the first transverse plate (13) is slidably connected with the plate groove (18).

5. The ejector pin type injection mold according to claim 1, wherein two through holes (19) are formed in the surface of the backup plate (1), and the two first ejector pins (6) are respectively connected with the two through holes (19) in a sliding manner.

6. The ejector pin type injection mold according to claim 1, wherein the first vertical plate (10) and the second vertical plate (11) are made of stainless steel materials, and cushion blocks (17) are fixedly arranged in the middle of one side of the first vertical plate (10) and the middle of one side of the second vertical plate (11).