CN113263693A

CN113263693A - Simple injection mold with quick-change mold core

Info

Publication number: CN113263693A
Application number: CN202110695231.9A
Authority: CN
Inventors: 谢宇; 沈力; 何园明
Original assignee: Youlian New Material Technology Shanghai Co ltd
Current assignee: Youlian New Material Technology Shanghai Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-08-17
Anticipated expiration: 2041-06-23
Also published as: CN113263693B

Abstract

The invention discloses a simple injection mold with a quick-change mold core, which comprises a mold frame, wherein a base is arranged on the mold frame, the top end of the base is connected with a lower mold, the top end of the lower mold is provided with an upper mold, the top end of the upper mold is connected with a top seat, and the top end of the top seat is connected with a supporting plate through symmetrically arranged supporting rods; the screw is driven to rotate by the first turntable and drives the supporting plate to ascend or descend, the supporting plate drives the top seat and the upper die to ascend and descend by the supporting rod and realize die opening and die closing, so that the upper die and the lower die are convenient to control when opened and closed, the safety is high, the problem that the lower die is easily excessively impacted when the upper die descends is avoided, the service life of the die is prolonged to a certain extent, the die is convenient to use, the screw rod is driven to rotate by the second turntable, the top plate on the screw rod drives the top rod to ascend and eject the die core, the die core is convenient to replace, the die core is only replaced when a produced product sample needs to be replaced, and the die development cost is reduced.

Description

Simple injection mold with quick-change mold core

Technical Field

The invention relates to the technical field of injection molds, in particular to a simple injection mold with a quick-change mold core.

Background

The injection molding is a method for producing and molding industrial products, the products generally use rubber injection molding and plastic injection molding, the injection molding can also be divided into an injection molding die pressing method and a die casting method, the injection molding die is a die used in injection molding processing, the simple injection molding die is a die which simplifies the structure of the injection molding die as much as possible, shortens the production period, reduces the manufacturing cost of the injection molding die, is only suitable for small-batch products and is generally used for detecting sample piece manufacturing, detecting the performance of raw materials which are independently developed and the like, and the simple injection molding die reduces the processing amount in the production process, thereby reducing the manufacturing cost of the die, but along with the development of the technology, the requirements of people on the simple injection molding die are higher;

the existing simple injection mold is single in structure, mold cores are convenient to replace, and formal production molds can be redeveloped after product sample pieces are verified, so that after a product is verified, the corresponding simple injection mold can be scrapped, and therefore a new product needs a new simple injection mold, and development input cost is increased.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a simple injection mold with a quick-change mold core, in which a first turntable drives an upper mold to lift and realize mold opening and mold closing, so that the upper mold and the lower mold are controlled conveniently when being opened and closed, and meanwhile, the problem that the upper mold is prone to causing excessive impact on the lower mold when the upper mold descends is avoided, and a second turntable drives an ejector rod to lift and eject the mold core, so that the mold core is convenient to replace.

In order to achieve the purpose of the invention, the invention is realized by the following technical scheme: the utility model provides a simple and easy injection mold of quick change mould benevolence, includes the mould frame, be equipped with the base on the mould frame, the base top is connected with the lower mould, the lower mould top is equipped with the mould, it is connected with the footstock to go up the mould top, the footstock top is connected with the backup pad through the bracing piece that the symmetry set up, backup pad top bearing is connected with the screw rod, screw rod top screw thread runs through mould frame top and is fixed with first carousel, mould benevolence is installed to lower mould top gomphosis, the inside cavity that is located mould benevolence below of seting up of lower mould, be equipped with top mould mechanism in the cavity, the die cavity has been seted up on the mould benevolence top, be equipped with the sprue on the footstock, die cavity and sprue are through the inside notes material passageway intercommunication of last mould.

The further improvement lies in that: the top die mechanism comprises a screw rod driven to rotate by a second turntable, a top plate is sleeved on the screw rod in a threaded manner, ejector rods are fixed on two sides of the top end of the top plate, and through holes matched with the ejector rods are formed in the top end of the cavity.

The further improvement lies in that: the cavity below is equipped with the drive chamber, the bottom of lead screw runs through to the drive intracavity through the bearing and is connected with first bevel gear, the second carousel runs through to the drive intracavity through the pivot and is connected with the second bevel gear with first bevel gear meshing.

The further improvement lies in that: the top plate is fixed with the slider at both ends, all set up the spout that matches with the slider on the both sides wall of cavity.

The further improvement lies in that: the top end of the supporting plate is fixed with sliding rods which are symmetrically distributed on two sides of the screw rod, and the top ends of the sliding rods penetrate through the top end of the die frame in a sliding mode.

The further improvement lies in that: the base and the top seat are respectively connected and fixed with the lower die and the upper die through first bolts, and the die core is connected and fixed with the lower die through second bolts.

The further improvement lies in that: the four corners position on lower mould top all is fixed with direction buffering post, the guiding hole that matches with direction buffering post is all seted up to the four corners position of going up the mould bottom, there is the buffer board on the inside top of guiding hole through damping spring connection.

The invention has the beneficial effects that: the mould comprises a mould frame, a screw is driven to rotate by a first turntable and drives a supporting plate to ascend or descend, the supporting plate drives a top seat and an upper mould to ascend and descend by a supporting rod and realize mould opening and mould closing, so that the upper mould and the lower mould are convenient to control when being opened and closed, the safety is higher, the problem that the lower mould is easily excessively impacted when the upper mould descends is avoided, the service life of the mould is prolonged to a certain extent, the mould is convenient to use, the screw is driven to rotate by a second turntable, the top plate on the screw drives the top rod to ascend and push out a mould core, the mould core is convenient to replace, the mould core is only replaced when a produced product sample needs to be replaced, and the development cost of the mould is reduced.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a top view of the lower die of the present invention;

FIG. 4 is an enlarged view of the invention at A;

FIG. 5 is an enlarged view of the invention at B;

fig. 6 is an enlarged view of the invention at C.

Wherein: 1. a mold frame; 2. a base; 3. a lower die; 4. an upper die; 5. a top seat; 6. a support bar; 7. a support plate; 8. a screw; 9. a first turntable; 10. a mold core; 11. a cavity; 12. a mold cavity; 13. a material injection port; 14. a material injection channel; 15. a second turntable; 16. a screw rod; 17. a top plate; 18. a top rod; 19. a drive chamber; 20. a first bevel gear; 21. a rotating shaft; 22. a second bevel gear; 23. a slider; 24. a chute; 25. a slide bar; 26. a first bolt; 27. a second bolt; 28. guiding the buffer column; 29. a guide hole; 30. a buffer plate; 31. a coil pipe; 32. a sealing groove; 33. and (5) sealing rings.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

Example one

According to fig. 1, 2, 3, 4, 5, and 6, the embodiment provides a simple injection mold for quickly changing a mold core, which includes a mold frame 1, a base 2 is disposed on the mold frame 1, a lower mold 3 is connected to a top end of the base 2, an upper mold 4 is disposed on a top end of the lower mold 3, a top seat 5 is connected to a top end of the upper mold 4, a support plate 7 is connected to a top end of the top seat 5 through a support rod 6 symmetrically disposed, a screw 8 is connected to a top end bearing of the support plate 7, a top thread of the screw 8 penetrates through a top end of the mold frame 1 and is fixed with a first rotary table 9, the screw 8 is driven to rotate by the first rotary table 9 and drives the support plate 7 to ascend or descend, the support plate 7 drives the top seat 5 and the upper mold 4 to ascend and descend through the support rod 6 and descend to realize mold opening and closing, so as to facilitate control when the upper mold 4 and the lower mold 3 are opened and closed, the safety is high, and simultaneously, the problem that the upper mold 4 easily causes excessive impact on the lower mold 3 when descending is avoided, the service life of mould has been improved to a certain extent, mould benevolence 10 is installed in the gomphosis of 3 tops of lower mould, 3 inside cavities 11 that are located mould benevolence 10 below of seting up of lower mould, be equipped with top mould mechanism in the cavity 11, die cavity 12 has been seted up on mould benevolence 10 tops, and die cavity 12 spouts the release agent before the production and prevents that the product from gluing the mould, be equipped with sprue 13 on the footstock 5, die cavity 12 and sprue 13 are convenient for pour into the raw materials of moulding plastics through the inside notes material passageway 14 intercommunication of last mould 4.

The mold ejecting mechanism comprises a screw rod 16 driven to rotate by a second turntable 15, a top plate 17 is sleeved on the screw rod 16 in a threaded manner, ejector rods 18 are fixed on two sides of the top end of the top plate 17, a through hole matched with the ejector rod 18 is formed in the top end of the cavity 11, and the screw rod 16 is driven to rotate by the second turntable 15, so that the ejector rod 18 is driven by the top plate 17 on the screw rod 16 to ascend and eject the mold core 10.

The cavity 11 below is equipped with drive chamber 19, the bottom of lead screw 16 runs through to drive chamber 19 in through the bearing and is connected with first conical gear 20, second carousel 15 runs through to drive chamber 19 in through pivot 21 and is connected with the second conical gear 22 with first conical gear 20 meshing, drives pivot 21 through second carousel 15 and drives second conical gear 22 and rotate, and second conical gear 22 drives first conical gear 20 rotation with it meshing again, and first conical gear 20 drives lead screw 16 again and rotates.

Both ends of the top plate 17 are fixed with sliding blocks 23, and sliding grooves 24 matched with the sliding blocks 23 are formed in both side walls of the cavity 11, so that the top plate 17 is more stable in the lifting process.

Slide bars 25 symmetrically distributed on two sides of the screw 8 are fixed at the top end of the supporting plate 7, and the top ends of the slide bars 25 penetrate through the top end of the die frame 1 in a sliding manner, so that the supporting plate 7 is more stable in the lifting process.

The base 2 and the top seat 5 are respectively connected and fixed with the lower die 3 and the upper die 4 through first bolts 26, and the die core 10 is connected and fixed with the lower die 3 through second bolts 27, so that the upper die 4, the lower die 3 and the die core 10 can be conveniently disassembled and assembled.

The four corners position on 3 tops of lower mould all is fixed with direction buffering post 28, the guiding hole 29 that matches with direction buffering post 28 is all seted up to the four corners position of going up 4 bottoms of mould, there is buffer board 30 on the inside top of guiding hole 29 through damping spring connection, plays the effect of buffering direction, avoids going up mould 4 and lower mould 3 striking excessively and damage.

The coil pipe 31 located around the mold insert 10 is arranged inside the lower mold 3, two ends of the coil pipe 31 penetrate through the outer portion of the lower mold 3 and are connected with the quick connectors, cooling water is injected into the mold insert 10 through the coil pipe 31 to accelerate cooling, and therefore forming efficiency of products is improved.

The upper surface of mould benevolence 10 has seted up the seal groove 32, the lower surface of going up mould 4 is fixed with the sealing washer 33 that matches with seal groove 32, has guaranteed the sealing performance of curtain 12 to the quality of moulding plastics has been promoted.

When the simple injection mold needs to be subjected to mold core replacement, the first rotary table 9 is rotated to drive the screw 8 to rotate upwards and drive the supporting plate 7 to ascend, the supporting plate 7 drives the top seat 5 and the upper mold 4 to ascend through the supporting rod 6 and realize mold opening, then the second screw 27 is screwed out, the second rotary table 15 is rotated to drive the rotating shaft 21 to drive the second bevel gear 22 to rotate, the second bevel gear 22 drives the first bevel gear 20 meshed with the second bevel gear to rotate, the first bevel gear 20 drives the screw rod 16 to rotate, so that the top plate 17 on the screw rod 16 drives the top rod 18 to ascend and eject the mold core 10, and finally the old mold core 10 is taken out and a new mold core is installed on the lower mold 3.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a simple and easy injection mold of quick change mould benevolence, includes mould frame (1), its characterized in that: a base (2) is arranged on the die frame (1), the top end of the base (2) is connected with a lower die (3), an upper die (4) is arranged at the top end of the lower die (3), a top seat (5) is connected with the top end of the upper die (4), the top end of the top seat (5) is connected with a supporting plate (7) through symmetrically arranged supporting rods (6), the top end of the supporting plate (7) is connected with a screw rod (8) through a bearing, the top end of the screw rod (8) penetrates through the top end of the die frame (1) in a threaded manner and is fixed with a first rotating disc (9), a mold core (10) is embedded at the top end of the lower mold (3), a cavity (11) positioned below the mold core (10) is arranged in the lower mold (3), a mold ejecting mechanism is arranged in the cavity (11), a mold cavity (12) is arranged at the top end of the mold core (10), be equipped with sprue (13) on footstock (5), die cavity (12) and sprue (13) are through going up inside notes material passageway (14) intercommunication of mould (4).

2. The simple injection mold with the quick-change mold core as claimed in claim 1, wherein: the top die mechanism comprises a screw rod (16) driven to rotate through a second turntable (15), a top plate (17) is sleeved on the screw rod (16) in a threaded manner, ejector rods (18) are fixed on two sides of the top end of the top plate (17), and through holes matched with the ejector rods (18) are formed in the top end of the cavity (11).

3. The simple injection mold with the quick-change mold core as claimed in claim 2, wherein: a driving cavity (19) is arranged below the cavity (11), the bottom end of the screw rod (16) penetrates into the driving cavity (19) through a bearing and is connected with a first bevel gear (20), and the second rotary disc (15) penetrates into the driving cavity (19) through a rotating shaft (21) and is connected with a second bevel gear (22) meshed with the first bevel gear (20).

4. The simple injection mold with the quick-change mold core as claimed in claim 2, wherein: both ends of the top plate (17) are fixed with sliding blocks (23), and sliding grooves (24) matched with the sliding blocks (23) are formed in the two side walls of the cavity (11).

5. The simple injection mold with the quick-change mold core as claimed in claim 1, wherein: the top end of the supporting plate (7) is fixed with sliding rods (25) which are symmetrically distributed on two sides of the screw rod (8), and the top ends of the sliding rods (25) penetrate through the top end of the die frame (1) in a sliding mode.

6. The simple injection mold with the quick-change mold core as claimed in claim 1, wherein: the base (2) and the top seat (5) are respectively connected and fixed with the lower die (3) and the upper die (4) through first bolts (26), and the die core (10) is connected and fixed with the lower die (3) through second bolts (27).

7. The simple injection mold with the quick-change mold core as claimed in claim 1, wherein: the four corners position on lower mould (3) top all is fixed with direction buffering post (28), guide hole (29) that match with direction buffering post (28) are all seted up to the four corners position of going up mould (4) bottom, there is buffer board (30) on the inside top of guide hole (29) through damping spring connection.