CN222521919U - Garbage can mold with balanced hot runner system - Google Patents

Abstract

The utility model belongs to the field of mold technology, and particularly relates to a trash can mold with a balanced hot runner system. The utility model includes a trash can molding lower mold and a trash can molding upper mold, and the trash can molding lower mold is provided with two trash can molding protrusions symmetrical along the center line of the trash can molding lower mold. During the injection molding process, the utility model brings the trash can molding lower mold and the trash can molding upper mold close to each other, so that the trash can molding protrusions and the trash can molding chamber are abutted and matched to form a complete cavity, and the molten material is injected into the cavity through the injection molding diverter. After the injection molding is completed, the cooling water is introduced into the internal cooling balance cooling component and the upper mold cooling part, and the inner side of the plastic part is cooled by the internal cooling balance cooling component, and the outer side of the plastic part is cooled by the upper mold cooling part. The internal and external multi-channel cooling is adopted to achieve the cooling balance of the plastic part, avoid the expansion or concavity of the inside and outside, and improve the quality of the plastic part.

Description

Garbage can mold with balanced hot runner system

Technical Field

The utility model belongs to the technical field of molds, and relates to a garbage can mold with a balanced hot runner system.

Background

The injection mold is a tool for producing plastic products, and can be used for mass production of certain plastic products with complex shapes. The injection mold is usually composed of a movable mold and a fixed mold, the mold is installed in the injection molding machine during production, heated and melted plastic is injected into a mold cavity of the injection molding mold from high pressure by the injection molding machine, after cooling and solidification, the injection molding machine pulls the movable mold to be separated from the fixed mold, and then injection molded finished products are pushed out by an ejection mechanism, so that one-time injection molding is completed. The plastic dustbin also carries out injection moulding through the mould, and current plastic dustbin mould is in injection moulding in-process, because the garbage bin has darker chamber, and single external cooling leads to the inside and outside cooling of plastic part inhomogeneous easily, takes place to expand or sunken, and is unbalanced to the inside and outside cooling of plastic part, leads to plastic part quality relatively poor. It is therefore highly desirable to design a trash can mold with a balanced hot runner system that overcomes the above drawbacks.

In order to overcome the defects of the prior art, various solutions are proposed by people through continuous exploration, for example, china patent discloses a garbage can forming die [ application number: 202020697747.8], four forming sliding blocks which are mutually spliced to form a die cavity are arranged between the bottom surface of an upper die block and the top surface of a lower die block, die core columns at the bottom surface of a square groove of the lower die block are correspondingly inserted into the die cavity, a die cavity is formed between the die core columns, a hot runner plate and the die cavity, the top ends and the top ends of the four forming sliding blocks are respectively inserted into a concave of the square groove in the upper die block and a concave of the square groove in the lower die block, the outer inclined surfaces of the four forming sliding blocks are attached to the inclined surfaces of the concave, the inclined guide posts of the upper die block are correspondingly inserted into the inclined guide holes of the forming sliding blocks, the outer side surfaces of the two forming sliding blocks are provided with mutually-inserted hook blocks and positioning sleeves, the lower die plate, the lower die block and the die core columns are internally provided with mutually-corresponding air passages, the positioning strips on the two forming sliding blocks are inserted into the through grooves on the other two forming sliding blocks, and the inner side surfaces of the four forming sliding blocks are carved with textures.

Disclosure of Invention

The utility model aims to solve the problems and provide a garbage can mold with a balanced hot runner system.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a garbage bin mould with balanced type hot runner system, includes that garbage bin shaping lower mould and garbage bin shaping go up the mould, be equipped with two in the garbage bin shaping lower mould and follow the garbage bin shaping protruding of garbage bin shaping lower mould central line symmetry, be equipped with two in the garbage bin shaping go up the garbage bin shaping cavity of mould central line symmetry, the garbage bin shaping protruding corresponds and the shape matches the adaptation with the position of garbage bin shaping cavity, be equipped with protruding location cassette between garbage bin shaping lower mould and the garbage bin shaping upper mould, protruding location cassette cooperatees with the protruding looks joint of garbage bin shaping, be equipped with the reposition of redundant personnel piece of moulding plastics above the garbage bin shaping, be equipped with the last mould cooling part that sets up with garbage bin shaping cavity is crisscross in the garbage bin shaping upper mould, be equipped with inside cooling balance cooling assembly in the garbage bin shaping is protruding, inside cooling assembly corresponds with the position of last mould cooling part.

In the garbage can mold with the balanced hot runner system, the internal cooling balanced cooling assembly comprises a plurality of internal cooling water channels arranged in the garbage can forming protrusions, a lower mold elastic stripping piece is arranged at the top of each internal cooling water channel, the lower mold elastic stripping piece is in sliding fit with the garbage can forming protrusions, and the top of each lower mold elastic stripping piece is flush with the garbage can forming protrusions.

In the garbage can mold with the balanced hot runner system, the lower mold elastic stripping module comprises a lower mold stripping sliding shaft arranged at the top of the internal cooling water channel, and a first spring is arranged in the lower mold stripping sliding shaft.

In the garbage can mold with the balanced hot runner system, a lower mold inlet channel is formed in the side part of the garbage can molding lower mold, and the lower mold inlet channel is communicated with the internal cooling water channel.

In the garbage can mold with the balanced hot runner system, an upper mold elastic stripping module is arranged in the garbage can molding cavity and is positioned right above the lower mold stripping sliding shaft.

In the garbage can mold with the balanced hot runner system, the upper mold elastic stripping module comprises an upper mold stripping sliding shaft arranged in a garbage can forming cavity, and a second spring is arranged in the upper mold stripping sliding shaft.

In the garbage can mold with the balanced hot runner system, the upper mold cooling part comprises a longitudinal cooling channel and a plurality of transverse cooling channels which are arranged in the garbage can molding upper mold, and the longitudinal cooling channel and the transverse cooling channels are respectively arranged in a staggered manner with the garbage can molding cavity.

In the garbage can mold with the balanced hot runner system, an upper mold inlet channel is further arranged in the garbage can molding upper mold, and the upper mold inlet channel is communicated with the longitudinal cooling channel.

In the garbage can mold with the balanced hot runner system, the transverse cooling channels penetrate through the garbage can molding upper mold, and the transverse cooling channels are parallel to each other.

In the garbage can mold with the balanced hot runner system, the injection molding split piece comprises an injection molding main plate and an injection molding pipe which are arranged above the garbage can molding upper mold.

Compared with the prior art, the utility model has the advantages that:

1. in the injection molding process, the garbage can molding lower die and the garbage can molding upper die are mutually close to each other, so that the garbage can molding bulge and the garbage can molding cavity are abutted and matched to form a complete cavity, molten materials are injected into the cavity through the injection molding flow dividing piece, cooling water is introduced into the internal cooling balance cooling assembly and the upper die cooling part after injection molding is finished, the inner side of a plastic part is cooled through the internal cooling balance cooling assembly, the outer side of the plastic part is cooled through the upper die cooling part, and the cooling balance of the plastic part is realized by adopting internal and external multi-channel cooling, so that the expansion or the sinking of the inner side and the outer side is avoided, and the quality of the plastic part is improved.

2. After the mold is opened, the lower mold demolding sliding shaft can be moved upwards by the pressure of cooling water, the plastic part is subjected to auxiliary demolding by the lower mold demolding sliding shaft, the ejector rod structure is reduced, the cost is reduced, the subsequent demolding is convenient, and the first spring can be reset conveniently.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a top view of the present utility model.

Fig. 3 is a schematic cross-sectional view at A-A in fig. 2.

Fig. 4 is a partial structural schematic diagram of the present utility model.

Fig. 5 is a schematic structural view of an upper molding die of the trash can.

In the figure, a garbage can molding lower die 1, a garbage can molding upper die 2, a garbage can molding protrusion 3, a garbage can molding cavity 4, a protrusion positioning clamping seat 5, an injection molding split piece 6, an upper die cooling part 7, an internal cooling balance cooling assembly 8, an internal cooling water channel 9, a lower die elastic stripping module 10, a lower die stripping sliding shaft 11, a first spring 12, a lower die inlet channel 13, an upper die elastic stripping module 14, an upper die stripping sliding shaft 15, a second spring 16, a longitudinal cooling channel 17, a transverse cooling channel 18, an upper die inlet channel 19, an injection molding main board 20 and an injection molding pipe 21.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-5, a garbage can mold with a balanced hot runner system comprises a garbage can molding lower mold 1 and a garbage can molding upper mold 2, two garbage can molding protrusions 3 symmetrical along the center line of the garbage can molding lower mold 1 are arranged in the garbage can molding lower mold 1, two garbage can molding cavities 4 symmetrical along the center line of the garbage can molding upper mold 2 are arranged in the garbage can molding upper mold 2, the positions of the garbage can molding protrusions 3 and the garbage can molding cavities 4 correspond to each other and are matched with each other in shape, a protrusion positioning clamping seat 5 is arranged between the garbage can molding lower mold 1 and the garbage can molding upper mold 2, the protrusion positioning clamping seat 5 is matched with the garbage can molding protrusions 3 in a clamping manner, an injection molding diverting piece 6 is arranged above the garbage can molding upper mold 2, an upper mold cooling part 7 which is arranged in a staggered manner with the garbage can molding cavities 4 is arranged in the garbage can molding upper mold 2, an internal cooling balance cooling assembly 8 is arranged in the garbage can molding protrusions 3, and the internal cooling balance cooling assembly 8 corresponds to the positions of the upper mold cooling parts 7.

In this embodiment, in the injection molding process, with garbage bin shaping lower mould 1 and garbage bin shaping upper mould 2 be close to each other for garbage bin shaping protruding 3 forms complete die cavity with garbage bin shaping cavity 4 butt cooperation, and the molten material carries out to the die cavity in through moulding plastics reposition of redundant personnel spare 6 and moulds plastics, after accomplishing the injection molding, lets in cooling water in inside cooling balance cooling module 8 and last mould cooling part 7, cools off the plastic part inboard through inside cooling balance cooling module 8, cools off the plastic part outside through last mould cooling part 7, adopts inside and outside multichannel cooling, realizes the cooling balance to the plastic part, avoids inside and outside to take place to expand or sunken, improves the plastic part quality.

Referring to fig. 1-5, the internal cooling balance cooling assembly 8 comprises a plurality of internal cooling water channels 9 arranged in the garbage can forming protrusions 3, a lower die elastic stripping module 10 is arranged at the top of each internal cooling water channel 9, the lower die elastic stripping module 10 is in sliding fit with the garbage can forming protrusions 3, and the top of each lower die elastic stripping module 10 is flush with each garbage can forming protrusion 3.

Specifically, after the injection molding is completed, cooling water is introduced into the internal cooling water channel 9, the inner side of a plastic part is cooled through the internal cooling water channel 9, after the mold is opened, the lower mold elastic demolding piece 10 can be moved upwards through the pressure of the cooling water, the plastic part is subjected to auxiliary demolding through the lower mold elastic demolding piece 10, the ejector rod structure is reduced, the cost is reduced, and the subsequent demolding is facilitated.

Referring to fig. 3, the lower mold elastic stripping module 10 includes a lower mold stripping slide shaft 11 disposed at the top of the internal cooling water channel 9, and a first spring 12 is disposed in the lower mold stripping slide shaft 11.

In this embodiment, after the mold is opened, the lower mold demolding sliding shaft 11 can be moved upwards by the pressure of cooling water, the plastic part is subjected to auxiliary demolding by the lower mold demolding sliding shaft 11, so that the ejector rod structure is reduced, the cost is reduced, the subsequent demolding is facilitated, and the first spring 12 can be reset conveniently.

The side part of the garbage can molding lower die 1 is provided with a lower die inlet channel 13, and the lower die inlet channel 13 is communicated with the internal cooling water channel 9.

In this embodiment, cooling water enters the internal cooling water channel 9 from the lower mold inlet 13 during cooling.

Referring to fig. 3, an upper mold elastic stripping member 14 is disposed in the garbage can forming chamber 4, and the upper mold elastic stripping member 14 is located right above the lower mold stripping slide shaft 11.

In this embodiment, after the mold is opened, the upper mold elastic demolding piece 14 can be moved downward, and the plastic part is demolded through the upper mold elastic demolding piece 14, so as to avoid adhesion between the plastic part and the upper mold 2 for molding the garbage can.

The upper mould elastic demoulding piece 14 comprises an upper mould demoulding slide shaft 15 arranged in the garbage can forming cavity 4, and a second spring 16 is arranged in the upper mould demoulding slide shaft 15.

In this embodiment, after the mold is opened, the upper mold demolding sliding shaft 15 can be moved downwards, the plastic part is demolded through the upper mold demolding sliding shaft 15, the adhesion between the plastic part and the garbage can molding upper mold 2 is avoided, and the second spring 16 is convenient to reset.

The upper die cooling part 7 comprises a longitudinal cooling channel 17 and a plurality of transverse cooling channels 18 which are arranged in the garbage can forming upper die 2, and the longitudinal cooling channel 17 and the transverse cooling channels 18 are respectively arranged in a staggered manner with the garbage can forming cavity 4.

In this embodiment, after the injection molding is completed, cooling water is introduced into the longitudinal cooling channels 17 and the plurality of transverse cooling channels 18 to cool the outer side of the molded part.

As shown in fig. 3, an upper mold inlet channel 19 is further arranged in the upper molding mold 2 of the garbage can, and the upper mold inlet channel 19 is communicated with the longitudinal cooling channel 17.

In this embodiment, cooling water is introduced into the longitudinal cooling channels 17 through the upper mold inlet channels 19.

As shown in fig. 1 and 3, the transverse cooling channels 18 penetrate through the garbage can forming upper die 2, and the transverse cooling channels 18 are parallel to each other.

In this embodiment, the transverse cooling channel 18 penetrates through the garbage can forming upper die 2, so that water can be conveniently fed in and discharged out.

As shown in fig. 1 and 3, the injection molding splitter 6 includes an injection molding main board 20 and an injection molding pipe 21 disposed above the upper molding die 2 of the trash can.

In this embodiment, during injection molding, molten material is injected into the cavity through the injection molding main plate 20 and the injection molding pipe 21.

The working principle of the utility model is as follows:

In the injection molding process, the garbage can molding lower die 1 and the garbage can molding upper die 2 are mutually close to each other, so that the garbage can molding bulge 3 and the garbage can molding cavity 4 are in abutting fit to form a complete cavity, molten materials are injected into the cavity through the injection molding main board 20 and the injection molding pipe 21,

After injection molding is completed, cooling water enters the internal cooling water channel 9 from the lower die inlet channel 13, the internal side of the plastic part is cooled through the internal cooling water channel 9, the cooling water is introduced into the longitudinal cooling channel 17 and the plurality of transverse cooling channels 18 to cool the external side of the plastic part, the internal and external multi-channel cooling is adopted to realize cooling balance of the plastic part, the internal and external sides are prevented from expanding or sinking, the quality of the plastic part is improved,

After the die is opened, the lower die demolding sliding shaft 11 can be moved upwards by the pressure of cooling water, the plastic part is subjected to auxiliary demolding by the lower die demolding sliding shaft 11, so that the ejector rod structure is reduced, the cost is reduced, the subsequent demolding is convenient, the first spring 12 can be conveniently reset, the upper die demolding sliding shaft 15 can be moved downwards after the die is opened, the plastic part is demolded by the upper die demolding sliding shaft 15, the adhesion between the plastic part and the garbage can molding upper die 2 is avoided, the second spring 16 is conveniently reset,

Cooling water is introduced into the longitudinal cooling channels 17 through the upper mould inlet channels 19, and the transverse cooling channels 18 penetrate through the garbage can forming upper mould 2, so that water can be conveniently introduced and discharged.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.

Although the terms of the trash can molding lower die 1, the trash can molding upper die 2, the trash can molding protrusion 3, the trash can molding chamber 4, the protrusion positioning clip seat 5, the injection molding split 6, the upper die cooling portion 7, the internal cooling balance cooling assembly 8, the internal cooling water channel 9, the lower die elastic stripping member 10, the lower die stripping slide 11, the first spring 12, the lower die inlet channel 13, the upper die elastic stripping member 14, the upper die stripping slide 15, the second spring 16, the longitudinal cooling channel 17, the transverse cooling channel 18, the upper die inlet channel 19, the injection molding main plate 20, the injection molding pipe 21, etc. are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.

Claims (10)

1. The utility model provides a garbage bin mould with balanced type hot runner system, includes garbage bin shaping lower mould (1) and garbage bin shaping upper mould (2), its characterized in that, be equipped with two in garbage bin shaping lower mould (1) along garbage bin shaping lower mould (1) central line symmetry's garbage bin shaping protruding (3), be equipped with two in garbage bin shaping upper mould (2) along garbage bin shaping upper mould (2) central line symmetry's garbage bin shaping cavity (4), the position of garbage bin shaping protruding (3) and garbage bin shaping cavity (4) is corresponding and the shape matches and suits, be equipped with protruding location cassette (5) between garbage bin shaping lower mould (1) and garbage bin shaping upper mould (2), protruding location cassette (5) and garbage bin shaping protruding (3) looks joint cooperation, garbage bin shaping upper mould (2) top is equipped with injection molding shunt (6), be equipped with in garbage bin shaping upper mould (2) cooling part (7) that the crisscross setting of mould cavity (4), be equipped with in garbage bin shaping protruding (3) cooling part (8) cooling balance module inside cooling module (8) cooling module inside cooling module (8 cooling module.

2. The trash can die with balanced hot runner system according to claim 1, characterized in that the internal cooling balanced cooling assembly (8) comprises a plurality of internal cooling water channels (9) arranged in the trash can forming protrusion (3), a lower die elastic stripping module (10) is arranged at the top of each internal cooling water channel (9), the lower die elastic stripping module (10) is in sliding fit with the trash can forming protrusion (3), and the top of each lower die elastic stripping module (10) is flush with the trash can forming protrusion (3).

3. The trash can die with balanced hot runner system according to claim 2, characterized in that the lower die elastic stripping module (10) comprises a lower die stripping slide shaft (11) arranged at the top of the internal cooling water channel (9), and a first spring (12) is arranged in the lower die stripping slide shaft (11).

4. A trash can die with balanced hot runner system according to claim 3, characterized in that a lower die inlet (13) is provided at the side of the trash can molding lower die (1), the lower die inlet (13) being in communication with an internal cooling water channel (9).

5. The trash can mold with balanced hot runner system according to claim 4, characterized in that an upper mold elastic stripping module (14) is arranged in the trash can molding cavity (4), and the upper mold elastic stripping module (14) is located right above the lower mold stripping slide shaft (11).

6. The trash can die with balanced hot runner system according to claim 5, characterized in that the upper die elastic stripping module (14) comprises an upper die stripping slide shaft (15) arranged in the trash can forming cavity (4), and a second spring (16) is arranged in the upper die stripping slide shaft (15).

7. The trash can die with balanced hot runner system according to claim 6, characterized in that the upper die cooling part (7) comprises a longitudinal cooling channel (17) and a plurality of transverse cooling channels (18) arranged in the trash can molding upper die (2), and the longitudinal cooling channel (17) and the plurality of transverse cooling channels (18) are respectively staggered with the trash can molding cavity (4).

8. The trash can mold with balanced hot runner system according to claim 7, characterized in that an upper mold inlet (19) is further provided in the trash can molding upper mold (2), and the upper mold inlet (19) is communicated with the longitudinal cooling channel (17).

9. The trash can die with balanced hot runner system according to claim 8, characterized in that the transverse cooling channels (18) extend through the trash can forming upper die (2), the several transverse cooling channels (18) being parallel to each other.

10. The trash can die with balanced hot runner system according to claim 9, characterized in that the injection molded splitter (6) comprises an injection molded main plate (20) and an injection molded tube (21) arranged above the trash can molding upper die (2).