CN211542247U

CN211542247U - Injection mold of secondary drawing of patterns

Info

Publication number: CN211542247U
Application number: CN201922489906.5U
Authority: CN
Inventors: 郝秋生; 陈永华
Original assignee: Suzhou Taizhike Mould Co ltd
Current assignee: Suzhou Taizhike Mould Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-22
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an injection mold of secondary drawing of patterns, including last mould seat, bed die seat, cope match-plate pattern, lower bolster, upper die benevolence, lower mould benevolence, upper and lower bolster are located upper and lower mould seat respectively, upper and lower mould benevolence is located upper and lower bolster respectively, the central point of lower mould benevolence puts and is provided with outstanding tubulose mold insert, centers on tubulose mold insert periphery is provided with multiunit drawing of patterns subassembly, drawing of patterns subassembly is including setting up the spout on the lower bolster and setting up the mould benevolence slider in the spout, upper die benevolence, lower mould benevolence, tubulose mold insert, mould benevolence slider form the die cavity of moulding plastics jointly. The utility model discloses an injection mold of secondary drawing of patterns, after the completion of moulding plastics, the in-process of upper and lower template die sinking, drawing of patterns subassembly is tight fixed with the formed part clamp earlier, makes the formed part separate between the upper and lower mould benevolence, accomplishes the drawing of patterns once, then removes mould benevolence slider on the drawing of patterns subassembly, makes the formed part separate from the drawing of patterns subassembly, accomplishes the secondary drawing of patterns.

Description

Injection mold of secondary drawing of patterns

Technical Field

The utility model relates to an injection mold field, concretely relates to injection mold of secondary drawing of patterns.

Background

Plastic products are widely applied to daily life of people, and the plastic products are manufactured by injection molding or blow molding of a mold. An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the material melted by heating is injected into a die cavity from high pressure, and a formed part is obtained after cooling and solidification.

For a tubular molded part, the molded part is generally sleeved on the lower mold core, and the molded part is difficult to take out of the lower mold core, and the wall thickness of the tubular molded part is thin, so that an ejector pin cannot be arranged below the tubular molded part, and the injection molded part is difficult to eject out of the mold through the ejector pin.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide an injection mold of secondary drawing of patterns, during the drawing of patterns, press from both sides the formed part through drawing of patterns subassembly earlier and tightly fix, make the formed part from the separation between the upper and lower mould benevolence, accomplish a drawing of patterns, then remove mould benevolence slider on the drawing of patterns subassembly, make the formed part separate from the drawing of patterns subassembly, accomplish the secondary drawing of patterns.

In order to solve the technical problem, the utility model provides an injection mold of secondary drawing of patterns, including last mould seat, bed die seat, cope match-plate pattern, lower bolster, upper mold benevolence, lower mould benevolence, upper and lower bolster is located upper and lower mould seat respectively, upper and lower mould benevolence is located upper and lower bolster respectively, the central point of lower mould benevolence puts and is provided with outstanding tubulose mold insert, centers on tubulose mold insert periphery is provided with multiunit drawing of patterns subassembly, drawing of patterns subassembly is including setting up the spout on the lower bolster and setting up the mould benevolence slider in the spout, upper mold benevolence, lower mould benevolence, tubulose mold insert, mould benevolence slider form the die cavity of moulding plastics jointly.

In a preferred embodiment of the present invention, further comprising an inclined guide pillar disposed in the sliding groove, the mold insert sliding block slides along the inclined guide pillar.

The utility model discloses a preferred embodiment, further include four groups drawing of patterns subassemblies, four groups drawing of patterns subassemblies set up respectively in four sides of lower template, four groups mould benevolence sliders in the drawing of patterns subassembly are spliced end to end, form closed die cavity.

The utility model discloses a preferred embodiment, further include be provided with the mold insert fixed plate in the cope match-plate pattern, be provided with the strip mold insert that inserts the die cavity of moulding plastics on the mold insert fixed plate.

The utility model discloses a preferred embodiment, further include be provided with the mouth of moulding plastics on the upper die base, it is provided with the pipeline of moulding plastics to mould plastics mouthful below, the pipeline of moulding plastics runs through the cope match-plate pattern, the pipeline of moulding plastics communicates with the die cavity of moulding plastics.

The utility model discloses a preferred embodiment, further include four angles departments in the cope match-plate pattern are provided with the guide pin bushing, four angles departments of lower bolster be provided with guide pin bushing complex guide pillar, the guide pillar is followed the guide pin bushing motion is accomplished upper and lower template compound die and die sinking.

The utility model discloses a preferred embodiment, further include be provided with the guide post between lower mould seat and the lower bolster, the cover is equipped with the elastic component on the guide post, the one end butt of elastic component is on the lower mould seat, and other end butt is on the lower bolster.

In a preferred embodiment of the present invention, the mold further comprises a plurality of cooling water pipes which are independently arranged, wherein the cooling water pipes are respectively arranged in the upper mold plate and the upper mold core, and the lower mold plate and the lower mold core, one side of the upper mold plate is provided with a plurality of water inlets which are communicated with the cooling water pipes, and the other side of the upper mold plate is provided with a water outlet; one side of the lower template is provided with a plurality of water inlets communicated with the cooling water pipe, and the other side of the lower template is provided with a water outlet.

The utility model has the advantages that: the utility model discloses when moulding plastics, after upper and lower template compound die, go up mould benevolence, lower mould benevolence, tubulose mold insert, mould benevolence slider and form the die cavity of moulding plastics jointly, after the completion of moulding plastics, the in-process of upper and lower template die sinking, drawing of patterns subassembly is tight fixed with the clamp of formed part earlier, makes the formed part from the separation between the upper and lower mould benevolence, accomplishes the drawing of patterns once, then removes the mould benevolence slider on the drawing of patterns subassembly, makes the formed part separate from the drawing of patterns subassembly, accomplishes the.

Drawings

Fig. 1 is a schematic view of an external structure of an injection mold of the present invention;

FIG. 2 is a schematic view of the internal structure of the injection mold of the present invention;

fig. 3 is a schematic structural view of the demolding assembly of the present invention.

The reference numbers in the figures illustrate: 1. an upper die base; 2. a lower die base; 3. mounting a template; 4. a lower template; 5. an upper die core; 6. a lower die core; 7. a tubular insert; 8. a demolding component; 801. a chute; 802. a mold core slide block; 803. An inclined guide post; 9. an insert fixing plate; 10. strip-shaped inserts; 11. an injection molding port; 12. injecting a pipeline; 13. A guide sleeve; 14. a guide post; 15. a guide post; 16. an elastic member; 17. a cooling water pipe; 18. a water inlet; 19. And (7) a water outlet.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-2, the utility model discloses an embodiment of injection mold of secondary drawing of patterns, an injection mold of secondary drawing of patterns, including last mould seat 1, lower mould seat 2, cope match-plate pattern 3, lower bolster 4, upper mold benevolence 5, lower mould benevolence 6, upper and lower bolster is located upper and lower mould seat respectively, upper and lower mould benevolence is located upper and lower bolster respectively, the central point of lower mould benevolence 6 puts and is provided with outstanding tubulose mold insert 7, centers on 7 peripheries of tubulose mold insert are provided with multiunit drawing of patterns subassembly 8, drawing of patterns subassembly 8 is including setting up spout and the mould benevolence slider of setting in the spout on lower bolster 4, upper mold benevolence 5, lower mould benevolence 6, tubulose mold insert 7, mould benevolence slider form the die cavity of moulding plastics jointly. After the injection molding is finished, in the process of opening the upper and lower templates, the demolding component 8 firstly clamps and fixes the molded part to separate the molded part from the upper and lower mold cores to finish primary demolding, and then moves the mold core slide block on the demolding component 8 to separate the molded part from the demolding component 8 to finish secondary demolding.

Referring to fig. 3, in this embodiment, an inclined guide pillar 803 is disposed in the chute 801, the mold core slider 802 slides along the inclined guide pillar 803, in the process of demolding the upper and lower mold plates, the positions of the plurality of sets of demolding assemblies 8 are fixed, at the moment when the upper and lower mold plates are separated and opened, the demolding assemblies 8 clamp and fix the molded parts first, the molded parts are separated from the upper and lower mold cores, and along with the gradual mold opening movement of the upper and lower mold plates, the mold core slider 802 slides in the chute 801 under the driving of the inclined guide pillar 803, so that the molded parts are separated from the demolding assemblies 8, and by disposing the inclined guide pillar 803, the molded parts are subjected to twice demolding in the process of one mold.

In this embodiment, the mold comprises four sets of demolding assemblies 8, the four sets of demolding assemblies 8 are respectively arranged on four side surfaces of the lower mold plate 4, mold core sliders 802 in the four sets of demolding assemblies 8 are spliced end to form a closed cavity, the four sets of demolding assemblies 8 form the outer wall of an injection molding cavity, the tubular mold insert 7 forms the inner wall of the injection molding cavity, and the upper mold core 5 and the lower mold core 6 respectively form the top and the bottom of the injection molding cavity; in other embodiments, two sets of demolding assemblies 8 arranged in opposite directions may be provided, the two sets of demolding assemblies 8 are spliced end to form a closed cavity, and the two sets of demolding assemblies 8 clamp the molded part.

In this embodiment, an insert fixing plate 9 is disposed in the upper mold plate 3, a strip-shaped insert 10 inserted into the injection mold cavity is disposed on the insert fixing plate 9, and a plurality of sets of inserts may be disposed in the upper mold plate 3 and the lower mold plate 4 according to the shape of a molded part to be obtained, so that the shape of the injection mold cavity is changed by the inserts, thereby enabling injection molding of molded parts of various shapes.

Specifically, be provided with on the upper die base 1 and mould plastics mouthful 11, it is provided with the pipeline 12 of moulding plastics to mould plastics mouthful 11 below, the pipeline 12 of moulding plastics runs through the cope match-plate pattern 3, the pipeline 12 of moulding plastics communicates with the mould cavity of moulding plastics, follows the mouth 11 of moulding plastics injects the injection molding material to the mould cavity of moulding plastics intracavity high pressure.

Specifically, guide sleeves 13 are arranged at four corners in the upper template 3, guide posts 14 matched with the guide sleeves 13 are arranged at four corners of the lower template 4, the guide posts 14 move along the guide sleeves 13 to complete the die assembly and die opening of the upper template and the lower template, the positions of the upper template and the lower template after die assembly are more accurate through the matching of the guide posts 14 and the guide sleeves 13, the shape in an injection molding cavity is ensured, and the quality of a die molding product is ensured.

Specifically, be provided with guide post 15 between lower mould seat 2 and the lower bolster 4, the cover is equipped with elastic component 16 on the guide post 15, the one end butt of elastic component 16 is on lower mould seat 2, and the other end butt is on lower bolster 4, and when initial position, elastic component 16 is in free state, and after upper and lower bolster compound die, elastic component 16 is in compression state, and after the completion of moulding plastics, the die sinking is convenient for through the reaction force of elastic component 16.

In order to enable the injection molding to be rapidly cooled and molded, the injection molding machine further comprises a plurality of cooling water pipes 17 which are independently arranged, the cooling water pipes 17 are respectively arranged in the upper template 3 and the lower template 4 in a penetrating manner, a plurality of water inlets 18 communicated with the cooling water pipes 17 are arranged on one side of the upper template 3, and a water outlet 19 is arranged on the other side of the upper template 3; one side of the lower template 4 is provided with a plurality of water inlets 18 communicated with the cooling water pipe 17, the other side of the lower template 4 is provided with a water outlet 19, cooling water is continuously injected into the cooling water pipe 17 from the water inlets 18 and is discharged from the water outlet 19, so that the cooling water is continuously refreshed and flows, and an injection molding part is cooled and molded at the fastest speed.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides an injection mold of secondary drawing of patterns, includes upper die base, bed die base, cope match-plate pattern, lower bolster, upper mold benevolence, lower mould benevolence, upper and lower bolster are located upper and lower die base respectively, upper and lower mould benevolence is located upper and lower bolster respectively, its characterized in that, the central point of lower mold benevolence puts and is provided with outstanding tubulose mold insert, centers on tubulose mold insert periphery is provided with multiunit drawing of patterns subassembly, drawing of patterns subassembly is including setting up the spout on the lower bolster and setting up the mould benevolence slider in the spout, upper mold benevolence, lower mold benevolence, tubulose mold insert, mould benevolence slider form the die cavity of moulding plastics jointly.

2. The secondary demolded injection mold according to claim 1, wherein an inclined guide post is disposed in the slide groove, and the core block slides along the inclined guide post.

3. The injection mold with secondary demolding according to claim 1, comprising four sets of demolding assemblies, wherein the four sets of demolding assemblies are respectively arranged on four sides of the lower mold plate, and the mold core sliding blocks in the four sets of demolding assemblies are spliced end to form a closed mold cavity.

4. The secondary demolded injection mold according to claim 1 wherein an insert-holding plate is provided in the top mold plate, the insert-holding plate having strip-shaped inserts inserted into the injection cavities.

5. The injection mold with secondary demolding according to claim 1, wherein an injection port is formed in the upper mold base, an injection pipeline is arranged below the injection port, the injection pipeline penetrates through the upper mold plate, and the injection pipeline is communicated with the injection cavity.

6. The injection mold with secondary demolding according to claim 1, wherein guide sleeves are arranged at four corners in the upper mold plate, guide pillars matched with the guide sleeves are arranged at four corners of the lower mold plate, and the guide pillars move along the guide sleeves to complete mold closing and mold opening of the upper mold plate and the lower mold plate.

7. The injection mold with secondary demolding according to claim 1, wherein a guide column is arranged between the lower mold base and the lower mold plate, an elastic piece is sleeved on the guide column, one end of the elastic piece abuts against the lower mold base, and the other end of the elastic piece abuts against the lower mold plate.

8. The injection mold with secondary demolding according to claim 1, further comprising a plurality of independently arranged cooling water pipes, wherein the cooling water pipes are respectively arranged in the upper mold plate, the upper mold core, the lower mold plate and the lower mold core in a penetrating manner, a plurality of water inlets communicated with the cooling water pipes are arranged on one side of the upper mold plate, and a water outlet is arranged on the other side of the upper mold plate; one side of the lower template is provided with a plurality of water inlets communicated with the cooling water pipe, and the other side of the lower template is provided with a water outlet.