CN211518390U - Ejection device of injection molding machine - Google Patents

Ejection device of injection molding machine Download PDF

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Publication number
CN211518390U
CN211518390U CN201922477363.5U CN201922477363U CN211518390U CN 211518390 U CN211518390 U CN 211518390U CN 201922477363 U CN201922477363 U CN 201922477363U CN 211518390 U CN211518390 U CN 211518390U
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China
Prior art keywords
threaded rod
injection molding
molding machine
ejection
fluted disc
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CN201922477363.5U
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Chinese (zh)
Inventor
石小凤
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Chengdu Electric Appliance Co ltd
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Chengdu Electric Appliance Co ltd
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Priority to CN201922477363.5U priority Critical patent/CN211518390U/en
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Abstract

The utility model discloses an injection molding machine ejecting device, include roof, bottom plate, go up mould, lower mould, support column and cylinder. The utility model discloses in, setting through the handle, can make the threaded rod take place to rotate, the outside of threaded rod closes two sets of thread bush soon, at threaded rod pivoted in-process, two sets of thread bushes are close to simultaneously or keep away from the movable block, the bottom of setting at the half fluted disc of movable block both sides all is fixed with extensible member and is connected for rotating between the thread bush, thread bush accessible extensible member makes the half fluted disc take place to rotate, and half fluted disc is connected for the meshing with the ejector pin, so the half fluted disc is at the pivoted in-process, the movable block can drive the ejector pin and move on vertical direction, can be ejecting in the die cavity with the lower mould with the product, compare traditional ejecting mode, the device's structure is simpler, need not to use driving motor or hydraulic push rod, the cost of mould has been reduced, and is economical and practical more.

Description

Ejection device of injection molding machine
Technical Field
The utility model relates to an injection molding machine ejecting device technical field especially relates to an injection molding machine ejecting device.
Background
An injection molding machine, also known as an injection molding machine or an injection machine, is a main molding device for making thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold, and is divided into a vertical type, a horizontal type and an all-electric type.
The ejection mechanism of the injection mould is called as a demoulding mechanism, the plastic part must be taken out of a mould cavity in each cycle of injection moulding, and the mechanism for finishing the action of taking out the plastic part is the ejection mechanism, and the ejection mechanism has the following two main functions of ensuring that the plastic part and the condensed material of a pouring system are smoothly ejected from the mould without deformation when the mould is opened; after the plastic part, the condensed material and the like are taken out of the mold, the ejection mechanism is ensured to be correctly reset when the mold is closed.
However, the existing ejection mechanism is complex in structure, usually a driving motor or a hydraulic push rod is adopted to drive the ejection rod to push the mold out of the mold cavity, the cost of the mold is increased by using a driving device, and the ejection mechanism is not economical and environment-friendly and is difficult to popularize in small and medium-sized enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the ejection device of the injection molding machine is provided for solving the problem that the existing ejection mechanism is complex in structure, a driving motor or a hydraulic telescopic rod is usually adopted to drive an ejection rod to push a mold out of a mold cavity, and the production cost of the mold is increased.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an injection molding machine ejecting device, includes roof, bottom plate, goes up mould, lower mould, support column and cylinder, still including setting up the ejecting casing in the lower mould bottom, the inner chamber of ejecting casing just is close to its bottom interior table wall department and is equipped with the threaded rod on the horizontal direction, close four thread bush on the threaded rod soon, the last wall department of ejecting casing has the top that the cunning of two ejector pins and two ejector pins all penetrates the die cavity of lower mould, and the both sides that the bottom of two ejector pins all was fixed with movable block and movable block all are equipped with the half fluted disc, the last wall that the bottom mounting of half fluted disc has extensible member and thread bush is connected for rotating.
As a further description of the above technical solution:
the moving block is connected with the semi-fluted disc in a meshing manner.
As a further description of the above technical solution:
the telescopic part consists of a sleeve and a moving rod.
As a further description of the above technical solution:
the end part of the threaded rod penetrates through the side wall of the ejection shell and is fixed with a handle.
As a further description of the above technical solution:
the threaded rod is provided with two groups of threads, the two groups of threads are symmetrically arranged relative to the center of the threaded rod, each group of threads comprises two sections of threads, and the two sections of threads are symmetrically arranged relative to the moving block.
As a further description of the above technical solution:
four sections of sliding grooves are formed in the lower surface wall of the ejection shell, and the four threaded sleeves are located in inner cavities of the four sections of sliding grooves respectively.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, setting through the handle, can make the threaded rod take place to rotate, the outside of threaded rod closes two sets of thread bush soon, at threaded rod pivoted in-process, two sets of thread bushes are close to simultaneously or keep away from the movable block, the bottom of setting at the half fluted disc of movable block both sides all is fixed with extensible member and is connected for rotating between the thread bush, thread bush accessible extensible member makes the half fluted disc take place to rotate, and half fluted disc is connected for the meshing with the ejector pin, so the half fluted disc is at the pivoted in-process, the movable block can drive the ejector pin and move on vertical direction, can be ejecting in the die cavity with the lower mould with the product, compare traditional ejecting mode, the device's structure is simpler, need not to use driving motor or hydraulic push rod, the cost of mould has been reduced, and is economical and practical more.
2. The utility model discloses in, four sections spouts have been seted up to the lower table wall of ejecting casing, and four thread bush are located the inner chamber of four sections spouts respectively, through the setting of spout, can carry on spacingly to the thread bush for the thread bush can only move on the horizontal direction, prevents that the thread bush from taking place the skew, has improved the device's stability.
Drawings
Fig. 1 shows a schematic structural diagram of an ejection device provided according to an embodiment of the present invention;
fig. 2 shows a schematic diagram of an internal structure of an ejection housing according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of the expansion piece provided according to an embodiment of the present invention;
illustration of the drawings:
1. a top plate; 2. an upper die; 3. a cylinder; 4. ejecting the shell; 5. a base plate; 6. a handle; 7. a support pillar; 8. a lower die; 9. a top rod; 10. a moving block; 11. a threaded sleeve; 12. a telescoping member; 13. a chute; 14. a half fluted disc; 15. a threaded rod; 1201. a sleeve; 1202. the rod is moved.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an ejection device of an injection molding machine comprises a top plate 1, a bottom plate 5, an upper die 2, a lower die 8, a supporting column 7 and a cylinder 3, wherein the top plate 1 is fixedly connected with the bottom plate 5 through the supporting column 7, the cylinder 3 is arranged between the upper die 2 and the top plate 1, the ejection device also comprises an ejection shell 4 arranged at the bottom of the lower die 8, a threaded rod 15 in the horizontal direction is arranged in an inner cavity of the ejection shell 4 and close to the inner surface wall of the bottom of the ejection shell, four threaded sleeves 11 are screwed on the threaded rod 15, two ejector rods 9 are slidably embedded in the upper surface wall of the ejection shell 4, the top ends of the two ejector rods 9 penetrate into cavities of the lower die 8, the ejector rods 9 are in sliding fit with the ejection shell 4, moving blocks 10 are fixed at the bottom ends of the two ejector rods 9, semi-toothed discs 14 are arranged on two sides of the moving blocks 10, the semi-toothed discs, half fluted disc 14 is at the pivoted in-process, and movable block 10 can drive ejector pin 9 and move in vertical direction, is provided with two sets of screw threads and two sets of screw threads about the central department symmetry setting of threaded rod 15 on the threaded rod 15 altogether, and every group screw thread all includes two sections screw threads and two sections screw threads about movable block 10 symmetry setting, and the bottom mounting of half fluted disc 14 has extensible member 12 and the last wall of thread bush 11 to be connected for rotating.
Specifically, as shown in fig. 3, the telescopic member 12 is composed of a sleeve 1201 and a moving rod 1202, the moving rod 1202 penetrates into an inner cavity of the sleeve 1201, the moving rod 1202 is in sliding fit with the sleeve 1201, an end of the moving rod 1202 is fixedly connected with the half-toothed disc 14, and the sleeve 1201 is rotatably connected with the threaded sleeve 11.
Specifically, as shown in fig. 1 and 2, the end of the threaded rod 15 penetrates through the side wall of the ejection housing 4 and is fixed with the handle 6, and the handle 6 facilitates the rotation of the threaded rod 15 by the worker.
Specifically, as shown in fig. 2, four sliding grooves 13 are formed in the lower surface wall of the ejection housing 4, the four thread bushings 11 are respectively located in inner cavities of the four sliding grooves 13, the sliding grooves 13 are in sliding fit with the thread bushings 11, and the sliding grooves 13 can limit the thread bushings 11, so that the thread bushings 11 can only move in the horizontal direction, the thread bushings 11 are prevented from being deviated, and the stability of the device is improved.
The working principle is as follows: when a product in a cavity of a lower die 8 needs to be ejected, a handle 6 is rotated, the handle 6 can drive a threaded rod 15 to rotate, the threaded rod 15 can enable four threaded sleeves 11 to move towards a moving block 10 close to the threaded sleeves 11 simultaneously in a rotating process, in the process that the threaded sleeves 11 move, the extensible part 12 stretches out and draws back, the extensible part 12 can drive a half-toothed disc 14 to rotate, the half-toothed disc 14 is connected with the moving block 10 in a meshed mode, therefore, the half-toothed disc 14 is in the rotating process, the moving block 10 can drive an ejector rod 9 to move in the vertical direction, the product in the cavity of the lower die 8 is ejected by the ejector rod 9, the ejection device is simpler in structure compared with a traditional ejection mode, a driving motor or a hydraulic push rod is not needed, the cost of the die is reduced, and the ejection device.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An ejection device of an injection molding machine comprises a top plate (1), a bottom plate (5), an upper die (2), a lower die (8), a support pillar (7) and a cylinder (3), it is characterized by also comprising an ejection shell (4) arranged at the bottom of the lower die (8), a threaded rod (15) in the horizontal direction is arranged in the inner cavity of the ejection shell (4) and close to the inner surface wall of the bottom of the ejection shell, four threaded sleeves (11) are screwed on the threaded rod (15), two ejector rods (9) are slidably embedded in the upper wall of the ejection shell (4), the top ends of the two ejector rods (9) penetrate into a cavity of the lower die (8), a moving block (10) is fixed at the bottom ends of the two ejector rods (9), semi-toothed discs (14) are arranged on two sides of the moving block (10), the bottom end of the semi-fluted disc (14) is fixed with an expansion piece (12), and the expansion piece (12) is rotatably connected with the upper wall of the threaded sleeve (11).
2. The ejection device of an injection molding machine as claimed in claim 1, wherein the movable block (10) is in meshing engagement with the half-toothed disc (14).
3. An injection molding machine ejector apparatus as claimed in claim 2, wherein said telescoping member (12) is comprised of a sleeve (1201) and a movable rod (1202).
4. An injection molding machine ejector according to claim 1, wherein the end of the threaded rod (15) extends through the side wall of the ejector housing (4) and is fixed with a handle (6).
5. The ejection device of an injection molding machine according to claim 4, wherein the threaded rod (15) is provided with two sets of threads, and the two sets of threads are symmetrically arranged about the center of the threaded rod (15), each set of threads comprises two sections of threads, and the two sections of threads are symmetrically arranged about the movable block (10).
6. The ejection device of an injection molding machine according to claim 5, wherein the lower surface wall of the ejection housing (4) is provided with four sliding grooves (13), and the four threaded sleeves (11) are respectively positioned in the inner cavities of the four sliding grooves (13).
CN201922477363.5U 2019-12-31 2019-12-31 Ejection device of injection molding machine Active CN211518390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922477363.5U CN211518390U (en) 2019-12-31 2019-12-31 Ejection device of injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922477363.5U CN211518390U (en) 2019-12-31 2019-12-31 Ejection device of injection molding machine

Publications (1)

Publication Number Publication Date
CN211518390U true CN211518390U (en) 2020-09-18

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ID=72448450

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922477363.5U Active CN211518390U (en) 2019-12-31 2019-12-31 Ejection device of injection molding machine

Country Status (1)

Country Link
CN (1) CN211518390U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112485849A (en) * 2020-11-06 2021-03-12 韩磊 Wear-resistant, antifouling and high-temperature-resistant lens and mold for processing lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112485849A (en) * 2020-11-06 2021-03-12 韩磊 Wear-resistant, antifouling and high-temperature-resistant lens and mold for processing lens

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