CN117429026A - Insert for cooling assistance and washing machine tray seat plastic mold based on insert - Google Patents

Abstract

The utility model discloses an insert and washing machine dish seat plastic mold based on it for cooling assistance in the injection mold field, the insert is the cuboid, four surfaces in the outside of insert are equipped with four waterways, are first waterway, second waterway, third waterway and fourth waterway in proper order, and first waterway and second waterway communicate, and second waterway and fourth waterway all communicate with third waterway, and four waterways all extend to the top of insert from the position that the bottom of insert was gone up. Because of the structural complexity of the tray seat, the tray seat is seriously deformed due to uneven local cooling, and the insert is added at the position to uniformly bring cooling water below the die which is not easy to set up a waterway channel, so that the die is cooled more uniformly and rapidly, the deformation of the tray seat is reduced, and the yield of the tray seat is increased.

Description

Insert for cooling assistance and washing machine tray seat plastic mold based on insert

Technical Field

The invention belongs to the field of injection molds, and particularly relates to an insert for cooling assistance and a washing machine tray seat plastic mold based on the insert.

Background

In the household electric die, the structure of the die of the washing machine, in particular the tray seat of the washing machine, is complex, the ribs are more, and the ejection mechanisms which need to be designed are also more, so that the cooling uniformity of the die is difficult to consider when the cooling water path of the die is designed. The waterway channel of the conventional washing machine tray die is shown in figures 1 and 2, and comprises a die body, wherein a cavity, a water inlet channel, two first channels and two second channels are arranged in the die body, one end of the water inlet channel is communicated with the outside, the other end of the water inlet channel is communicated with the middle section of the second channels, one end of the second channel is communicated with the outside, the other end of the second channel is communicated with the first channels, the other ends of the first channels are communicated with the outside, the first channels and the second channels form an L-shaped loop, the die and the cavity are symmetrical in central line, the two second channels and the two first channels are respectively and symmetrically arranged along the central line of the die, a connecting channel is communicated between the two second channels, and the connecting channel and the water inlet channel are positioned on the same horizontal line;

however, the existing water inlet channel, the first channel, the second channel and the connecting channel cannot cool the position of the mold close to the lower side cavity, if a circular waterway channel is directly added at the position, the mold is required to be drilled through a machine tool, and because of the complexity of the washing machine tray mold, the waterway channel is directly processed at the position and is extremely easy to break down with the adjacent holes or cavities, so that the conventional waterway channel cannot be arranged at the position, and the thermoplastic material in the cooling cavity cannot be uniformly cooled at the position, thereby causing deformation of the washing machine tray and reducing the yield of the washing machine tray.

Disclosure of Invention

The invention aims to provide an insert for cooling assistance and a washing machine tray seat plastic mold based on the insert for cooling assistance, so as to solve the problems that the conventional waterway channel is used for the mold of the washing machine tray seat, so that the washing machine tray seat is not uniformly cooled in the injection molding process, deformation is generated, and the deformation and the yield of the washing machine tray seat are reduced.

The utility model provides an in this scheme with insert and washing machine dish seat plastic mold based on it is assisted in cooling, the insert is the cuboid, four surfaces in the outside of insert are equipped with four water route passageway, are first water route passageway, second water route passageway, third water route passageway and fourth water route passageway in proper order, and first water route passageway and second water route passageway communicate, and second water route passageway and fourth water route passageway all communicate with third water route passageway, and four water route passageways all extend to the top of inserting from the position that the bottom of insert was gone up.

The working principle of the scheme and the beneficial effects thereof are that: when the mold is used, the two inserts are mounted at the bottom of the mold, the first waterway channel and the second waterway channel are communicated with the waterway channel of the mold, thermoplastic liquid enters the cavity of the mold during injection molding, cooling water is injected into the waterway channel of the mold after filling the cavity, the cooling water enters the first waterway channel of the two inserts through the waterway channel of the mold, then flows into the second waterway channel, the third waterway channel and the fourth waterway channel through the first waterway channel, flows into the waterway channel of the mold from the fourth waterway channel, and the inserts longitudinally extend to flow of the cooling water, so that the cooling of the part is more uniform, the mold is required to be drilled by a machine tool due to the fact that the conventional waterway channel is limited in position, the thermoplastic liquid is very easy to break down with the adjacent holes and the cavity during processing, and the cooling water in the waterway channel existing above can be drained into the inserts by the inserts, so that the part of the mold is cooled, the part of the mold is cooled more uniformly, and the yield of the washing machine disk group is increased.

Further, the second waterway channel and the fourth waterway channel of the insert are both inverted U-shaped. The inverted U-shaped waterway channel can enable cooling water to flow upwards from the position of the insert close to the lower part, the die at the position is cooled, the flowing distance of the cooling water is increased, uneven cooling of the upper part of the insert caused by accumulation of the cooling water under the action of gravity is avoided, the tray seat of the washing machine is deformed, and the flowing direction of the cooling water in the insert is shown in fig. 6 and 7.

Further, two inserts are arranged, the two inserts are arranged at the joint position of the first channel and the second channel, and the two inserts are close to two sides of the cavity. The insert is adopted to replace the joint of the first channel and the second channel, the insert guides cooling water downwards, and the mold close to the lower side is cooled, so that the mold is cooled more uniformly.

Further, the position of the fourth waterway channel close to the upper end is connected with the first channel, and the position of the first waterway channel close to the upper end is communicated with the second channel. When cooling water enters the water inlet channel, then enters the second channel from the water inlet channel, flows into the first waterway channel of the insert from the position of the insert close to the upper end, then flows into the lower part of the die along with the guidance of the first waterway channel, cools the die below, then flows out along with the flow direction of the fourth waterway channel to the first channel, the insert guides the cooling water positioned above to the lower part, cools the die below, ensures that the die below is cooled more uniformly, and avoids deformation of a tray of the washing machine.

Further, the bottoms of the two inserts are provided with mounting tables, two symmetrical sides of the mounting tables are provided with threaded holes, and the threaded holes are connected with screws for fixing the inserts in a threaded mode. After the cooling is finished, the washing machine tray seat is taken out, cooling water is extremely easy to leave in the insert, the insert is taken out only by unscrewing the screw during cleaning, the screw is more stable to install, and the disassembly is extremely convenient when overhauling is needed.

Further, the application also provides a washing machine tray seat plastic mold comprising the cooling auxiliary insert. The mold provided with the insert can cool the part of the mold more uniformly, and reduce the deformation rate of the washing machine tray.

Further, sealing rings are arranged at the contact positions of the upper surfaces of the mounting tables of the two inserts and the die. The sealing ring makes the contact between the insert and the die more compact, and avoids the cooling water from leaking out to contact with the disc seat when passing through the insert.

Drawings

FIG. 1 is a partial cross-sectional view of a prior art washing machine tray;

FIG. 2 is a cross-sectional view of FIG. 1 containing a first channel;

FIG. 3 is a partial cross-sectional view of a cooling-assist insert and washer tray plastic mold based thereon of the present invention;

FIG. 4 is a cross-sectional view taken along section B-B of FIG. 3;

FIG. 5 is a partial cross-sectional view taken along section A-A of FIG. 3;

FIG. 6 is a schematic view of the structure of an insert;

fig. 7 is a rear view of fig. 6.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: insert 1, first waterway channel 11, second waterway channel 12, fourth waterway channel 13, first channel 2, second channel 3, connecting channel 4, water inlet channel 5, die 6, screw 7.

The embodiment is basically as shown in figures 1-5: the utility model provides an insert for cooling assistance and washing machine dish seat plastic mold based on it, including the mould 6 body, die cavity and two inserts 1, the mould 6 body is along the central line symmetry, four water route passageway have all been seted up to the surface of two inserts 1, be first water route passageway 11 in proper order, second water route passageway 12, third water route passageway and fourth water route passageway 13, first water route passageway 11 and second water route passageway 12 intercommunication, second water route passageway 12 and fourth water route passageway 13 all communicate with the third water route passageway, second water route passageway 12 and fourth water route passageway 13 are the shape of falling "U", the inside of mould 6 body is equipped with two first passageway 2 and two second passageway 3, the four are in same horizontal plane and mutually perpendicular, two inserts 1, two first passageway 2 and two second passageway 3 are all along the central line symmetry of mould 6 body, the position intercommunication that first water route passageway 11 on second passageway 3 and the insert is close to the upper end, the position intercommunication that first water route passageway 13 on first passageway 2 and the insert is close to the upper end, first passageway 2 and fourth water route passageway 13 on the insert are all in the position intercommunication, first passageway 2 and second passageway 3 and the outside of inserting are in the horizontal passageway 5 and are in the same horizontal direction and are connected to the outside passageway 5, the water inlet channel is in the position that the outside is in the horizontal direction is left of two passageways 3 and 5 outside channels are connected to the same, the water inlet channel is connected to the outside of two first passageway 1 and 2 and two channels are in the horizontal channel and 5; the bottoms of the two inserts 1 are provided with mounting tables, threaded holes are formed in two opposite sides of each mounting table, the threaded holes are located in two shorter sides of each mounting table, screws 7 are connected in the two threaded holes in a threaded mode, the screws 7 penetrate through the mounting tables and are connected with the die 6 in a threaded mode, and O-shaped sealing rings are arranged at positions, connected with the die 6, of the upper ends of the mounting tables of the two inserts 1.

The specific implementation process is as follows: after the injection molding is completed, the mold 6 needs to be cooled quickly, when the part is cooled, the cooling water enters the water inlet channel 5, then flows into the outside, the connecting channel 4 and the insert 1 respectively at the positions where the water inlet channel 5 is communicated with the second channel 3, wherein one cooling water flows to the second channel 3 on the other side through the connecting channel 4, then flows to the outside and the insert 1 on the other side from the second channel 3 on the other side, the cooling water flowing into the second channel 3 flows to the outside along with the second channel 3, the cooling water flowing into the first water channel 11 of the two inserts 1 enters the insert 1, then flows through the second water channel 12, the third water channel and the fourth water channel 13 in sequence, finally flows out from the first channel 2 above the fourth water channel 13, the cooling water located above the insert 1 flows to the lower side of the insert 1, thereby cooling the lower mold 6, then flows to the outside from the first channel 2 on the upper side, thereby completing the cooling of the two molds 6, and making the cooling of the mold 6 more uniform, as shown by arrows in fig. 3, 7 and 7.

The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (7)

1. An insert for cooling assistance, characterized in that: the insert is rectangular, four surfaces in the outer side of the insert are provided with four waterways, namely a first waterway, a second waterway, a third waterway and a fourth waterway, the first waterway and the second waterway are communicated, the second waterway and the fourth waterway are communicated with the third waterway, and the four waterways extend to the top end of the insert from the position of the bottom of the insert.

2. The cooling aid insert according to claim 1, wherein: the second waterway channel and the fourth waterway channel of the insert are both inverted U-shaped.

3. The cooling aid insert according to claim 2, wherein: the two inserts are arranged at the joint positions of the first channel and the second channel, and are close to two sides of the cavity.

4. A cooling aid insert according to claim 3, wherein: the position of the fourth waterway channel close to the upper end is connected with the first channel, and the position of the first waterway channel close to the upper end is communicated with the second channel.

5. The cooling aid insert according to claim 4, wherein: the bottoms of the two inserts are provided with mounting tables, two symmetrical sides of each mounting table are provided with threaded holes, and threaded holes are in threaded connection with screws used for fixing the inserts.

6. A washing machine dish seat plastic mold is characterized in that: comprising the cooling auxiliary insert according to any one of claims 1 to 5.

7. A washing machine tray plastic mold as claimed in claim 7, wherein: and sealing rings are arranged at the contact positions of the upper surfaces of the mounting tables of the two inserts and the die.