CN220008717U

CN220008717U - Injection mold convenient to drawing of patterns

Info

Publication number: CN220008717U
Application number: CN202321022551.9U
Authority: CN
Inventors: 孔海权; 孔丽丽
Original assignee: Hangzhou Pengchi Hardware Machinery Co ltd
Current assignee: Hangzhou Pengchi Hardware Machinery Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-11-14
Anticipated expiration: 2033-05-04

Abstract

The utility model provides an injection mold convenient for demolding, which comprises a lower mold and an upper mold arranged above the lower mold, wherein an injection molding bin is formed on one side surface of the lower mold opposite to the upper mold, a plurality of cooling grooves are formed in the bottom wall of the injection molding bin at equal intervals, connecting pipes communicated with the cooling grooves are fixed at the two ends of the lower mold and the upper mold, electromagnetic plates are fixed at the bottom wall of the cooling grooves at equal intervals, protruding parts are fixed at the top ends of the side walls of the cooling grooves, sealing plates are fixedly sleeved on the sealing plates, magnetic suction rods corresponding to the electromagnetic plates are fixedly arranged at the bottom ends of the sealing plates at equal intervals, first springs sleeved on the magnetic suction rods are fixedly arranged at the bottom ends of the cooling grooves at equal intervals, a base is fixedly arranged at the bottom end of the lower mold, a plurality of telescopic rods are fixedly arranged at the top ends of the lower mold in a rectangular array, the telescopic sliding insertion connection is arranged in the upper mold, and top plates are fixedly arranged at the top ends of the telescopic rods.

Description

Injection mold convenient to drawing of patterns

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold convenient to demold.

Background

The injection mold is used for manufacturing and molding a product, hot melted plastic is injected into a molding cavity from an injection molding opening, and a finished product is obtained after molding, cooling and demolding, but the existing product is usually cooled in a natural cooling mode and then is demolded, so that the cooling speed is low, the effect is poor, and the demolding is not easy.

However, when the existing ejector pin ejects a molded product, the bottom of the product is easy to eject to be dented, so that the bottom of the product is damaged and dented, the quality of the product is affected, and the product demolding speed is low due to high temperature in the molding cavity, so that the efficiency is low.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides an injection mold convenient for demolding, which realizes the functions of cooling the mold and improving the demolding efficiency of the injection mold by matching an elastically arranged sealing plate structure with an electromagnetic plate and a magnetic suction rod structure which are mutually attracted, and solves the problems of slower demolding speed and low efficiency of products caused by high temperature in a molding cavity.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an injection mold convenient to drawing of patterns, includes the bed die and sets up the last mould in the bed die top, the storehouse of moulding plastics has all been seted up to a side in bed die and last mould in opposite directions, a plurality of cooling grooves have been seted up to the diapire equidistance in storehouse of moulding plastics, and wherein the bed die all is fixed with the connecting pipe that is linked together with a plurality of cooling grooves with the both ends of last mould, the diapire equidistance in cooling groove is fixed with the electromagnetic plate, and the lateral wall top in cooling groove is fixed with the bellying, coincide in the cooling groove to peg graft there is the closing plate, fixed the cup joint has the sealing washer on the closing plate, and the bottom equidistance of closing plate is fixed with the magnetic attraction pole corresponding with the electromagnetic plate, the diapire equidistance in cooling groove is fixed with the cover and establishes the second spring on the magnetic attraction pole.

Preferably, a base is fixed at the bottom end of the lower die, and a plurality of telescopic rods are fixed at the top end of the lower die in a rectangular array.

Preferably, the telescopic rods are slidably inserted into the upper die, and top plates are fixed at the top ends of the telescopic rods.

Preferably, the top end of the upper die is fixed with a first spring sleeved on the telescopic rod, and the top end of the top plate is fixed with a hydraulic rod connected with the upper die.

Preferably, the water storage tank and the water pump are respectively arranged on two sides of the top end surface of the base, and the water pump is fixedly connected with the bottom of the water storage tank through a pipeline.

Preferably, a water injection pipe is fixed at the top end of the water storage tank, and a control valve is arranged on the water injection pipe.

Preferably, the top end of the water storage tank is fixed with a water inlet pipe, and the bottom end of the water pump is provided with a water outlet pipe.

Preferably, tee joints are arranged on the water inlet pipe and the water outlet pipe, and the tee joints are respectively and fixedly connected with connecting pipes at two ends of the upper die and the lower die.

Preferably, both ends of the lower die and the upper die are provided with water inlet tanks communicated with the connecting pipes, and the water inlet tanks are respectively communicated with the plurality of cooling tanks.

Preferably, positioning parts are fixed at two ends of the sealing plate, and the top ends of the two positioning parts are abutted with the protruding parts.

The utility model has the beneficial effects that:

(1) According to the utility model, the injection molding grooves are formed in the upper die and the lower die, the sealing plate is elastically arranged in the cooling groove formed in the inner wall of the injection molding groove, the second spring pushes the sealing plate to separate the cooling groove, injection molding raw materials are prevented from entering the cooling groove, meanwhile, the electromagnetic plate is arranged in the cooling groove, the electromagnetic plate and the magnetic suction rod on the sealing plate are mutually attracted, so that the sealing plate is contracted to the bottom end of the cooling groove, the top end of the cooling groove is respectively communicated with the water inlet pipe and the water outlet pipe through the water inlet groove, the water pump enables water flow to circulate in the cooling groove, cooling is carried out on injection molding parts in the circulation process, and therefore the demolding efficiency of the injection molding die is greatly improved, and meanwhile, the parts are convenient to fall off from the die due to thrust generated by water pressure.

(2) According to the utility model, the bulge part is arranged on the inner wall of the cooling groove, the positioning part which is abutted against the bulge part is fixed on the sealing plate, and the elastic force of the second spring pushes the sealing plate to be in a horizontal state with the inner wall of the injection bin through the mutual abutment between the positioning part and the bulge part, so that the influence of the cooling groove on the molding of the injection mold is avoided.

In summary, the utility model has the advantages of avoiding the injection molding raw material from entering the cooling groove, improving the demolding efficiency of the injection mold, and the like.

Drawings

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

FIG. 2 is a schematic view of the lower die structure of the present utility model;

FIG. 3 is a schematic view of the internal structure of the lower die of the utility model;

FIG. 4 is an enlarged schematic view of the structure A in FIG. 2 according to the present utility model;

FIG. 5 is a schematic view of a seal plate according to the present utility model.

In the figure: 1. a base; 2. a water storage tank; 3. a lower die; 4. a water inlet pipe; 5. a first spring; 6. a hydraulic rod; 7. a top plate; 8. an upper die; 9. a water pump; 10. a telescopic rod; 11. a connecting pipe; 12. a tee joint; 13. a water outlet pipe; 14. an injection molding bin; 15. a cooling tank; 16. a second spring; 17. an electromagnetic plate; 18. a sealing plate; 19. a water inlet tank; 20. a boss; 21. a positioning part; 22. a seal ring; 23. a magnetic suction rod; 24. and a water injection pipe.

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. 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.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus 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.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

As shown in fig. 1, this embodiment provides an injection mold convenient to drawing of patterns, including bed die 3 and the last mould 8 of setting in bed die 3 top, injection molding storehouse 14 has all been seted up to a side that bed die 3 and last mould 8 are in opposite directions, a plurality of cooling grooves 15 have been seted up to the diapire equidistance of injection molding storehouse 14, wherein bed die 3 and the both ends of last mould 8 all are fixed with the connecting pipe 11 that is linked together with a plurality of cooling grooves 15, the diapire equidistance of cooling groove 15 is fixed with electromagnetic plate 17, and the lateral wall top of cooling groove 15 is fixed with bellying 20, coincide in the cooling groove 15 and peg graft sealing plate 18, fixed the cup joint sealing washer 22 on the sealing plate 18, and the bottom equidistance of sealing plate 18 is fixed with the magnetic suction rod 23 corresponding with electromagnetic plate 17, the diapire equidistance of cooling groove 15 is fixed with the second spring 16 of cover on magnetic suction rod 23.

The bottom end fixing of bed die 3 has base 1, and the top of bed die 3 is rectangular array and is fixed with a plurality of telescopic links 10, fix a position mould 8 through telescopic link 10, thereby make the connection between mould 8 and the bed die 3 coincide each other, telescopic slip grafting is in last mould 8, and the top of a plurality of telescopic links 10 all is fixed with roof 7, carry out embedded installation to hydraulic rod 6 through roof 7, and drive last mould 8 through hydraulic rod 6 and go up and down, the top of last mould 8 is fixed with the first spring 5 of cover on telescopic link 10, close connection between mould 8 and the bed die 3 has been promoted to the elasticity of first spring 5, thereby the stability of last mould 8 and bed die 3 contact has been promoted, the top of roof 7 is fixed with the hydraulic rod 6 of being connected with last mould 8.

The two sides of the top end surface of the base 1 are respectively provided with a water storage tank 2 and a water pump 9, the water pump 9 is fixedly connected with the bottom of the water storage tank 2 through a pipeline, water in the water storage tank 2 circularly flows in an upper die 8 and a lower die 3 along a tee joint 12 and a connecting pipe 11 respectively through the water pump 9, the upper die 8 and the lower die 3 are cooled in the flowing process, the top end of the water storage tank 2 is fixedly provided with a water injection pipe 24, the water injection pipe 24 is provided with a control valve, the water is added and changed into the water storage tank 2 through the water injection pipe 24, the top end of the water storage tank 2 is fixedly provided with a water inlet pipe 4, the bottom end of the water pump 9 is provided with a water outlet pipe 13, and the circulated water flows back to the inside of the water storage tank 2 through the water inlet pipe 4, tee bend 12 is all installed on inlet tube 4 and outlet pipe 13 to through tee bend 12 respectively with the connecting pipe 11 fixed connection at last mould 8 and bed die 3 both ends, make the water in last mould 8 and the bed die 3 circulate simultaneously through tee bend 12 and connecting pipe 11, the intake channel 19 that is linked together with connecting pipe 11 is all offered at the both ends of bed die 3 and last mould 8, intake channel 19 is linked together with a plurality of cooling tanks 15 respectively, the both ends of closing plate 18 all are fixed with location portion 21, the top of two location portions 21 all with bellying 20 butt, make the elasticity of second spring 16 promote closing plate 18 and the inner wall of moulding plastics storehouse 14 be in horizontally state, thereby avoided cooling tank 15 to the shaping of moulding plastics mould to cause the shadow.

Working procedure

Step one, close electromagnetic plate 17 during moulding plastics, second spring 16 promotes closing plate 18 and carries out the separation to cooling tank 15, avoided moulding plastics raw materials to get into cooling tank 15, when the drawing of patterns to the injection molding part between upper mould 8 and the lower mould 3, start electromagnetic plate 17, the mutual actuation of magnetic suction rod 23 on electromagnetic plate 17 and the closing plate 18, thereby make closing plate 18 shrink to cooling tank 15's bottom, make cooling tank 15's top be linked together with inlet tube 4 and outlet pipe 13 respectively through inlet channel 19, water pump 9 makes rivers circulate in cooling tank 15, and cool down the part of moulding plastics at the in-process of circulation, thereby promote injection molding mould's drawing of patterns efficiency greatly, the thrust that water pressure produced makes the part be convenient for drop from the mould simultaneously.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Injection mold convenient to drawing of patterns, including bed die (3) and last mould (8) of setting in bed die (3) top, a serial communication port, bed die (3) all have been seted up injection molding storehouse (14) with a side in the face of last mould (8), a plurality of cooling grooves (15) have been seted up to the diapire equidistance in injection molding storehouse (14), and wherein bed die (3) all are fixed with connecting pipe (11) that are linked together with a plurality of cooling grooves (15) with the both ends of last mould (8), the diapire equidistance in cooling groove (15) is fixed with electromagnetic plate (17), and the lateral wall top of cooling groove (15) is fixed with bellying (20), and coincide in cooling groove (15) to peg graft have closing plate (18), fixed cup joint sealing washer (22) on closing plate (18), and the bottom equidistance of closing plate (18) is fixed with magnetic suction rod (23) corresponding with electromagnetic plate (17), the diapire equidistance of cooling groove (15) is fixed with second spring (16) of cover on magnetic suction rod (23).

2. An injection mold convenient for demolding according to claim 1, characterized in that the bottom end of the lower mold (3) is fixed with a base (1), and the top end of the lower mold (3) is fixed with a plurality of telescopic rods (10) in a rectangular array.

3. An injection mould convenient for demoulding according to claim 2, characterized in that the telescopic rods are slidably inserted into the upper mould (8), and the top ends of the telescopic rods (10) are respectively fixed with a top plate (7).

4. An injection mould convenient for demoulding according to claim 3, characterized in that the top end of the upper mould (8) is fixed with a first spring (5) sleeved on a telescopic rod (10), and the top end of the top plate (7) is fixed with a hydraulic rod (6) connected with the upper mould (8).

5. The injection mold convenient to demolding according to claim 2, wherein the two sides of the top end surface of the base (1) are respectively provided with a water storage tank (2) and a water pump (9), and the water pump (9) is fixedly connected with the bottom of the water storage tank (2) through a pipeline.

6. An injection mould facilitating demoulding according to claim 5, characterized in that the top end of the water storage tank (2) is fixed with a water injection pipe (24), and the water injection pipe (24) is provided with a control valve.

7. The injection mold convenient to demolding according to claim 5, wherein the water inlet pipe (4) is fixed at the top end of the water storage tank (2), and the water outlet pipe (13) is installed at the bottom end of the water pump (9).

8. The injection mold convenient for demolding according to claim 7, wherein the tee joint (12) is arranged on the water inlet pipe (4) and the water outlet pipe (13), and the tee joint (12) is fixedly connected with the connecting pipes (11) at two ends of the upper mold (8) and the lower mold (3) respectively.

9. The injection mold convenient for demolding according to claim 1, wherein water inlet grooves (19) communicated with the connecting pipe (11) are formed at two ends of the lower mold (3) and the upper mold (8), and the water inlet grooves (19) are respectively communicated with the plurality of cooling grooves (15).

10. An injection mould facilitating demoulding according to claim 9, wherein positioning parts (21) are fixed at both ends of the sealing plate (18), and the top ends of the two positioning parts (21) are abutted with the protruding parts (20).