CN212219142U

CN212219142U - A mould for making washing machine base

Info

Publication number: CN212219142U
Application number: CN202020245865.5U
Authority: CN
Inventors: 戴卫东
Original assignee: Shanghai Yongxing Plastics Co ltd
Current assignee: Shanghai Yongxing Plastics Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-12-25
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a mould for making washing machine base, including last mould and lower mould, it includes the top plate that from the top down set gradually to go up the mould, flow distribution plate and A board, be equipped with hot runner system in the flow distribution plate, be equipped with the die cavity in the A board, the lower mould includes the core that from the top down set gradually, the B board, thimble board and bottom plate, be equipped with the thimble that runs through B board and core on the thimble board, the oblique top, be equipped with the drain pipe passageway front mould in the die cavity, be equipped with the drain pipe passageway back mould corresponding with the drain pipe passageway front mould in the core, hot runner system includes two hot runners, one of them is located drain pipe passageway front mould department, another is located the die cavity opposite side relative with the drain pipe passageway front mould, the hot nozzle of hot runner. Compared with the prior art, the utility model discloses a valve pin type hot runner system realizes injecting timing control, plays to injection moulding and prevents to form the unbalanced phenomenon of gummosis, eliminates defects such as product weld line and bubble, has improved the quality of product.

Description

A mould for making washing machine base

Technical Field

The utility model relates to a mould especially relates to a mould for making washing machine base.

Background

The mold structure of the current washing machine base is generally a cold runner three-plate mold structure, which is easy to lack materials and trap air, and has a long molding period. When the base product of the washing machine is large in size, the rubber position is easy to lack materials due to the deep cavity of the mold, and the reinforcing rib position is broken.

SUMMERY OF THE UTILITY MODEL

The present invention aims at providing a mold for making a washing machine base to overcome the above-mentioned defects of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

a mould for manufacturing a washing machine base comprises an up-down through opening, a drain pipe channel structure is arranged on the inner side of the opening, the mould comprises an upper mould and a lower mould, the upper mould comprises an upper fixing plate, a splitter plate and a plate A which are sequentially arranged from top to bottom, a hot runner system is arranged in the splitter plate, a cavity is arranged in the plate A, the lower mould comprises a mould core, a plate B, an ejector plate and a lower fixing plate which are sequentially arranged from top to bottom, an ejector pin and an inclined top which penetrate through the plate B and the mould core are arranged on the ejector plate, a drain pipe channel front mould is arranged in the cavity, a drain pipe channel rear mould corresponding to the drain pipe channel front mould is arranged in the mould core, the hot runner system comprises two hot runners, one of which is positioned at the drain pipe channel front mould, and the other of which is positioned at the other side of the mould cavity, the hot runner adopts a needle valve type hot nozzle.

Preferably, the outer side of the core is provided with a slide block.

Preferably, two sliding blocks are arranged on the two sides of the rear die of the drain pipe channel respectively and are arranged oppositely.

Preferably, two inclined tops are arranged on one side, facing the core, of each of the two sliding blocks.

Preferably, a plurality of return rods are arranged between the B plate and the ejector plate.

Preferably, the hot runner system includes a valve pin controller disposed outside of the manifold.

Preferably, the hot runner system employs an internal heating system.

Preferably, square irons are arranged on two sides of the ejector plate.

Compared with the prior art, the utility model has the advantages of it is following:

1. aiming at the conditions of large product volume, deep cavity, easy material shortage of glue positions and easy breakage of reinforcing ribs, the mold adopts a valve needle type hot runner system to realize injection timing control, prevents the formation of uneven glue flow phenomenon for injection molding, eliminates the defects of product weld lines, bubbles and the like, improves the product quality and shortens the molding period; and considering different muscle position saturation intensity, set up the hot runner in two positions of product, solved the problem of excessive glue easily, satisfy product appearance requirement.

2. The mould is changed from the existing secondary parting device into a primary parting device, one mould is a cavity, the sliding blocks are separated after injection timing control molding, and the conditions of material shortage, breakage, glue overflow and flash of a product at a rib position are effectively controlled by using an inclined ejector and an ejector pin ejection device.

Drawings

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

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic view of the upper mold structure of the present invention;

fig. 4 is a schematic view of the lower mold structure of the present invention.

The figure is marked with: 1. the device comprises an upper fixing plate, 2, a flow distribution plate, 3, an A plate, 4, a washing machine base product, 5, a sliding block, 6, a mold core, 7, an inclined top, 8, a B plate, 9, square iron, 10, an upper ejector plate, 11, a lower ejector plate, 12, a lower fixing plate, 13, a hot runner system, 14, a drainage pipe channel front mold, 15, a drainage pipe channel rear mold, 16, a return rod, 17, a valve needle controller, 18 and a mold cavity.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Examples

As shown in fig. 1 to 4, the application provides a mold for manufacturing a washing machine base, the mold comprises an upper mold and a lower mold, the upper mold comprises an upper fixing plate 1, a flow distribution plate 2 and an a plate 3 which are sequentially arranged from top to bottom, a hot runner system 13 is arranged in the flow distribution plate 2, and a cavity 18 is arranged in the a plate 3; the lower die comprises a core 6, a B plate 8, an ejector plate and a lower fixing plate 12 which are sequentially arranged from top to bottom, and the ejector plate is provided with an ejector pin and an inclined ejector 7 which penetrate through the B plate 8 and the core 6. Two sliding blocks 5 are arranged on the outer side of the mold core 6, are respectively arranged on two sides of the rear mold 15 of the drain pipe channel and are arranged oppositely. Two inclined tops 7 are arranged on one side of the two sliding blocks 5 facing the mold core 6 respectively.

The washing machine base product 4 manufactured by the mould comprises an opening which is communicated up and down, and a drain pipe channel structure is arranged on the inner side of the opening. A drain passage front mold 14 is provided in the mold cavity 18, and a drain passage rear mold 15 corresponding to the drain passage front mold 14 is provided in the core 6. The hot runner system 13 includes two hot runners, one of which is located at the drain passage chase 14 and the other of which is located on the opposite side of the mold cavity 18 from the drain passage chase 14. The hot runner adopts a needle valve type hot nozzle which can adopt injection timing control, the flow balance filling of each glue inlet is controlled by a needle valve controller 17, the smooth filling of the cavity 18 is ensured, the melt flows to each rib position evenly, the phenomena of welding and air trapping at the rib position are eliminated, the deep rib position is functionally solved, and the appearance of the whole product is free from defects. The needle control 17 is arranged specifically outside the diverter plate 2. In this embodiment, the hot runner system 13 employs an internal heating system.

The ejector plate comprises an upper ejector plate 10 and a lower ejector plate 11, and square irons 9 are arranged on two sides of the ejector plate. A plurality of return bars 16 are provided between the B plate 8 and the ejector plate.

The mould is opened after injection, pressure maintaining, cooling and cavity product shaping, the A plate 3 of the upper mould and the B plate 8 of the lower mould are directly separated, the product moves backwards together with the movable mould at the fixed mould side of the cavity 18, the position is set in place, the ejection machine is pushed, the product starts to move forwards and separate under the action of the inclined top 7, the ejector block and the ejector pin, after the mechanism is set to the top ejection distance, the ejection machine is stopped and retreated, and then the reset is completed under the action of the reset element.

The drain pipe channel structure made of PP-GF30 material is fixed in the mold core 6, can not shrink and warp, and is injection molded together with TPE, so that the probability of pressure injury or glue leakage is much lower, and the product yield is also improved. When the product is manufactured, the workbench of the double-color injection molding machine automatically rotates 180 degrees, so that the link of manually placing the product insert is reduced, and the production efficiency is greatly improved.

Claims

1. The utility model provides a mould for making washing machine base, washing machine base includes the opening that link up from top to bottom, the open-ended inboard is equipped with drain pipe passageway structure, the mould includes mould and lower mould, the mould includes top plate (1), flow distribution plate (2) and A board (3) that set gradually from the top down, be equipped with hot runner system (13) in the flow distribution plate (2), be equipped with die cavity (18) in the A board (3), the lower mould includes core (6), B board (8), thimble board and bottom plate (12) that set gradually from the top down, be equipped with on the thimble board and run through B board (8) and core (6) thimble, oblique top (7), its characterized in that, be equipped with drain pipe passageway front mould (14) in die cavity (18), be equipped with in the core (6) with drain pipe passageway rear mould (15) corresponding with drain pipe passageway front mould (14), the hot runner system (13) comprises two hot runners, one of which is positioned at the front mould (14) of the drain channel and the other of which is positioned at the other side of the mould cavity (18) opposite to the front mould (14) of the drain channel, and the hot runners adopt needle valve type hot nozzles.

2. A mould for making a washing machine foundation according to claim 1, characterised in that the outside of the core (6) is provided with slides (5).

3. A mould for making a washing machine foundation according to claim 2, characterised in that said slide (5) is provided in two, respectively opposite, sides of said rear mould (15) of the drain duct.

4. A mould for making a washing machine foundation according to claim 3, characterised in that said lifter (7) is provided in two, respectively on the side of the two slides (5) facing the core (6).

5. A mould for making a washing machine foundation according to claim 1, characterised in that a plurality of return bars (16) are provided between the B plate (8) and the ejector plate.

6. A mould for making a washing machine base according to claim 1, characterised in that the hot runner system (13) comprises a valve needle controller (17), the valve needle controller (17) being arranged outside the manifold plate (2).

7. A mould for making a washing machine base, according to claim 1, characterized in that said hot runner system (13) employs an internal heating system.

8. A mould for making a washing machine base according to claim 1, characterised in that the ejector plate is provided with square irons (9) on both sides.