CN219686393U

CN219686393U - Injection mold for washing machine panel

Info

Publication number: CN219686393U
Application number: CN202320775571.7U
Authority: CN
Inventors: 郑建林
Original assignee: Taizhou Huangyan Woma Moulding Co ltd
Current assignee: Taizhou Huangyan Woma Moulding Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-09-15
Anticipated expiration: 2033-04-10

Abstract

The utility model provides an injection mold for a washing machine panel, which belongs to the technical field of molds. It includes an upper template, a lower template and a molding cavity arranged between the upper template and the lower template. The molding cavity is annular, and a split-flow glue flow channel structure is provided at the center of the molding cavity. The outside of the molding cavity There are also four No. 1 core-pulling components and a No. 2 core-pulling component in a rectangular array. The split-flow glue inlet flow channel structure can realize multi-point glue inlet without setting up additional injection molding plates and injection molding tubes, which can improve injection molding efficiency and make injection molding more uniform. Four No. 1 core-pulling assemblies and a No. 2 core-pulling assembly Components can realize automatic core pulling when opening the mold, and there is no need to set up a driving device to reduce costs. The externally expanded ejection mechanism can push the product outward for a certain distance when the product is ejected, so that the thinner parts of the side and the lower part of the product can be ejected. The side part of the template is detached to prevent the thin part of the product side from being damaged due to tight adhesion between the product and the lower template.

Description

Injection mold for washing machine panel

Technical Field

The utility model belongs to the technical field of molds, and relates to an injection mold for a panel of a washing machine.

Background

The washing machine panel is generally formed through injection molding, at present, because the washing machine panel is hollow, when the washing machine panel mold is in injection molding, single-point glue feeding is needed to be realized in a mode that a glue feeding port is biased, but the injection molding efficiency of single-point glue feeding is slower, and the mold adopting multi-point glue feeding is needed to be provided with an injection molding plate and a plurality of injection molding pipes, so that the cost of the mold can be increased.

As disclosed in chinese patent, a washing machine control panel bracket injection mold [ application number: 201922336184.X ], including lower die body and filtration frame, the filtration frame is installed on the outer wall all around of lower die body, be provided with dustproof filter screen on the filtration frame, through having set up the injection molding mould courage in the upper end inside of lower die body, heat dissipation aluminum plate's inboard one end is hugged closely on the outer wall all around of injection molding mould courage.

Disclosure of Invention

The utility model aims to solve the problems and provides a washing machine panel injection mold.

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

the utility model provides a washing machine panel injection mold, includes cope match-plate pattern, lower bolster and sets up the shaping chamber between cope match-plate pattern and lower bolster, the shaping chamber be the annular, the center department of shaping chamber is provided with reposition of redundant personnel advances gluey runner structure, the shaping chamber outside still be equipped with four and be the subassembly of loosing core and a No. two subassemblies of loosing core that rectangular array distributes, the lower bolster downside still be equipped with outer expanding ejection mechanism.

In the injection mold for the panel of the washing machine, the center of the upper template is concavely provided with a groove connected with the forming cavity, the center of the lower template is convexly provided with a boss connected with the inner side of the forming cavity, the upper end face of the boss is abutted against the bottom of the groove to form sealing connection, and the split-type glue inlet runner structure is arranged at the joint of the boss and the groove.

In the injection mold for the panel of the washing machine, the split-flow type glue inlet runner structure comprises a glue inlet runner connected with a glue inlet arranged on the upper template, and further comprises a plurality of split-flow runners connected with the glue inlet runner and circumferentially arranged along the center line of the glue inlet runner, wherein one side of the split-flow runner far away from the glue inlet runner is connected with the forming cavity.

In the injection mold for the panel of the washing machine, the flow dividing flow passage is formed by combining an upper flow passage arranged on the groove and a lower flow passage arranged on the boss.

In the injection mold for the panel of the washing machine, the outer expansion type ejection mechanism comprises an ejector rod fixing plate, a plurality of inclined ejector rods are arranged on the ejector rod fixing plate, the inclined ejector rods are uniformly distributed on two sides of the forming cavity, and the bottoms of the inclined ejector rods are hinged with the ejector rod fixing plate.

In the injection mold for the panel of the washing machine, the ejector rod fixing plate is fixedly connected with a plurality of straight ejector pins arranged along the circumferential direction and a plurality of residual ejector pins arranged along the circumferential direction.

In the injection mold for the panel of the washing machine, the core pulling assembly comprises a core pulling block which is connected with the lower mold plate in a sliding manner through a limiting structure, a core pulling block which is inserted into the forming cavity is arranged at the inner end of the core pulling block, and a core pulling rod which is obliquely inserted into the core pulling block is fixedly connected to the upper mold plate.

In the injection mold for the panel of the washing machine, the first limiting structure comprises a first limiting block arranged on the lower mold plate, wherein the section of the first limiting block is T-shaped and is inserted into a first limiting chute at the bottom of the first core-pulling block.

In the injection mold for the panel of the washing machine, the second core-pulling assembly comprises a second core-pulling block which is connected with the lower mold plate in a sliding manner through a second limiting structure, a second core-pulling block which is inserted into the forming cavity is arranged at the inner end of the second core-pulling block, and at least two second core-pulling rods which are obliquely inserted into the second core-pulling block are fixedly connected to the upper mold plate.

In the injection mold for the panel of the washing machine, the second limiting structure comprises limiting pressing plates which are fixed on the lower die plate and located on two sides of the second core-pulling block.

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

1. the annular forming cavity can be used for injection molding of a washing machine panel product, the split-type glue inlet runner structure can realize multi-point glue inlet under the condition that an injection molding plate and an injection molding pipe are not additionally arranged, injection molding efficiency can be improved, injection molding is more uniform, four core-pulling assemblies and one core-pulling assembly can realize automatic core pulling during die opening, a driving device is not required to be arranged, cost is reduced, and the outward expansion type ejection mechanism can enable a thinner part of a product side part and a lower template side part to be separated by a distance when the product is ejected, so that the product and the lower template are prevented from being adhered and too tightly to cause the thinner part of the product side part to be damaged.

2. After the injection molding liquid enters the glue inlet flow passage from the glue inlet, the injection molding liquid can enter the molding cavity in a multi-point manner through a plurality of flow distribution flow passages, so that the injection molding efficiency can be improved.

3. When the ejector rod fixing plate moves upwards, the thinner part of the side part of the product can be ejected outwards for a distance through the inclined ejector rod, so that the thinner part of the side part of the product is separated from the side part of the lower template, and the product can be prevented from being damaged during ejection.

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 view of the internal structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the lower die plate;

FIG. 4 is a schematic view of the structure of the upper die plate;

fig. 5 is a schematic structural view of a flaring ejector mechanism.

In the figure, an upper die plate 1, a lower die plate 2, a forming cavity 3, a first core-pulling component 4, a second core-pulling component 5, a groove 6, a boss 7, a glue inlet 8, a glue inlet runner 9, a flow distribution runner 10, an ejector rod fixing plate 11, an inclined ejector rod 12, a straight ejector pin 13, a first core-pulling block 14, a first core-pulling rod 15, a first limiting block 16, a second core-pulling block 17, a second core-pulling rod 18, a limiting pressing plate 19 and a residual ejector pin 20.

Detailed Description

As shown in fig. 1-5, a washing machine panel injection mold comprises an upper template 1, a lower template 2 and a forming cavity 3 arranged between the upper template 1 and the lower template 2, wherein the forming cavity 3 is annular, a split-type glue inlet runner structure is arranged at the center of the forming cavity 3, four core-pulling assemblies 4 and a core-pulling assembly 5 which are distributed in a rectangular array are further arranged outside the forming cavity 3, and an outward-expansion type ejection mechanism is further arranged at the lower side of the lower template 2.

According to the utility model, the annular forming cavity can be used for injection molding of a washing machine panel product, the split-type glue inlet runner structure can be used for realizing multi-point glue inlet under the condition that an injection molding plate and an injection molding pipe are not additionally arranged, injection molding efficiency can be improved, injection molding is more uniform, four core-pulling assemblies 4 and one core-pulling assembly 5 can realize automatic core pulling during mold opening, a driving device is not required to be arranged for reducing cost, and the outward-expanding type ejection mechanism can be used for ejecting a product outwards for a certain distance during ejection of the product so as to separate a thinner part of the side part of the product from the side part of the lower template, so that damage to the thinner part of the side part of the product caused by adhesion and overtightening of the product and the lower template is prevented.

Specifically, as shown in fig. 1-4, a groove 6 connected with the molding cavity 3 is concavely arranged in the center of the upper die plate 1, a boss 7 connected with the inner side of the molding cavity 3 is convexly arranged in the center of the lower die plate 2, the upper end surface of the boss 7 abuts against the bottom of the groove 6 to form sealing connection, and the split-type glue inlet runner structure is arranged at the joint of the boss 7 and the groove 6. The boss 7 and recess form a sealing connection that enables a cavity to be formed in the middle of the product.

Specifically, as shown in fig. 1-4, the split-type glue inlet channel structure comprises a glue inlet channel 9 connected with a glue inlet 8 arranged on the upper template 1, and a plurality of split-flow channels 10 connected with the glue inlet channel 9 and circumferentially arranged along the center line of the glue inlet channel 9, wherein one side, far away from the glue inlet channel 9, of each split-flow channel 10 is connected with the forming cavity 3.

After the injection molding liquid enters the glue inlet flow passage from the glue inlet, the injection molding liquid can enter the molding cavity in a multi-point manner through a plurality of flow distribution flow passages, so that the injection molding efficiency can be improved.

Specifically, the flow dividing flow passage 10 is formed by combining an upper flow passage provided on the groove 6 and a lower flow passage provided on the boss 7.

Specifically, as shown in fig. 1, 3 and 5, the outward expansion type ejection mechanism comprises an ejector rod fixing plate 11, wherein a plurality of inclined ejector rods 12 are arranged on the ejector rod fixing plate 11, the inclined ejector rods 12 are uniformly distributed on two sides of the forming cavity 3, and the bottom of each inclined ejector rod 12 is hinged with the ejector rod fixing plate 11. When the ejector rod fixing plate 11 moves upwards, the thinner part of the side part of the product can be ejected outwards for a distance through the inclined ejector rod, so that the thinner part of the side part of the product is separated from the side part of the lower template, and the product can be prevented from being damaged during ejection.

Specifically, the ejector rod fixing plate 11 is also fixedly connected with a plurality of straight ejector pins 13 arranged along the circumferential direction and a plurality of residual ejector pins 20 arranged along the circumferential direction. When the ejector rod fixing plate moves upwards, the product can be ejected out through the straight ejector pin, and the residual material ejector pin can eject the residual material left in the flow distribution channel when the product is ejected out.

Specifically, referring to fig. 3 and 4, the core-pulling assembly 4 includes a core-pulling block 14 slidably connected with the lower die plate 2 through a first limiting structure, a core block inserted into the forming cavity 3 is arranged at the inner end of the core-pulling block 14, a core-pulling rod 15 obliquely inserted into the core-pulling block 14 is fixedly connected to the upper die plate 1, the first limiting structure includes a first limiting block 16 arranged on the lower die plate 2, and the section of the first limiting block 16 is T-shaped and is inserted into a first limiting chute at the bottom of the first core-pulling block 14. When the upper template moves vertically upwards, the core-pulling block I is driven to move to one side far away from the forming cavity through the core-pulling rod I, so that the core-pulling block I and the forming cavity are separated, core pulling is achieved, products can be ejected and demoulded conveniently, and the core-pulling block I with the T-shaped section can be limited by the core-pulling block I through the limiting block I16.

Specifically, as shown in fig. 2, 3 and 4, the second core-pulling assembly 5 comprises a second core-pulling block 17 slidably connected with the lower die plate 2 through a second limiting structure, a second core block inserted into the forming cavity 3 is arranged at the inner end of the second core-pulling block 17, at least two second core-pulling rods 18 obliquely inserted into the second core-pulling block 17 are fixedly connected to the upper die plate 1, and the second limiting structure comprises limiting pressing plates 19 fixed on the lower die plate 2 and located on two sides of the second core-pulling block 17. When the upper template moves vertically upwards, the second core-pulling block is driven to move towards one side far away from the forming cavity through the second core-pulling rod, so that the second core block and the forming cavity are separated to realize core pulling, the product is conveniently ejected and demolded, and the limiting pressing plates on the two sides of the second core-pulling block can limit the second core-pulling block.

The working principle of the utility model is as follows: the annular forming cavity can be used for injection molding of a washing machine panel product, the split-type glue inlet runner structure can realize multi-point glue inlet under the condition that an injection molding plate and an injection molding pipe are not additionally arranged, injection molding efficiency can be improved, injection molding is more uniform, four first core-pulling components 4 and one second core-pulling component 5 can realize automatic core pulling during mold opening, a driving device is not required to be arranged to reduce cost, and the outward expanding type ejection mechanism can be used for ejecting a product outwards for a certain distance during ejection of the product so as to separate a thinner part of the side part of the product from the side part of the lower template, so that the product and the lower template are prevented from being adhered and overtightened to cause damage to the thinner part of the side part of the product;

the boss 7 and the groove form a sealing connection, so that a cavity can be formed in the middle of a product, and injection molding liquid can enter the glue inlet flow channels from the glue inlet and then can enter the molding cavity in a multi-point manner through a plurality of flow distribution channels, so that the injection molding efficiency can be improved;

the ejector rod fixing plate 11 can eject the thinner part of the side part of the product outwards for a distance through the inclined ejector rod when moving upwards, so that the thinner part of the side part of the product is separated from the side part of the lower template, damage of the product can be prevented when the product is ejected, the product can be ejected through the straight ejector pin when moving upwards, and the residual ejector pin can eject the residual remained in the flow distribution channel when the product is ejected;

the upper template can be through a core pulling rod drive a core pulling block to keeping away from one side of the shaping die cavity and remove when vertically upwards moving to can make a core block break away from realization core pulling with the shaping cavity, so that the ejecting drawing of patterns of product, a stopper 16 that the cross-section is T type can carry out spacingly to a core pulling block, can drive No. two core pulling blocks to keeping away from one side of the shaping die cavity through No. two core pulling rods when vertically upwards moving of upper template, thereby can make No. two core blocks break away from realization core pulling with the shaping cavity, so that the ejecting drawing of patterns of product, no. two spacing clamp plates of core pulling block both sides can carry out spacingly to No. two core pulling blocks.

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 or exceeding the scope of the utility model as defined in the accompanying claims.

Although the upper die plate 1, the lower die plate 2, the forming cavity 3, the first core-pulling assembly 4, the second core-pulling assembly 5, the groove 6, the boss 7, the glue inlet 8, the glue inlet runner 9, the flow dividing runner 10, the ejector fixing plate 11, the inclined ejector pins 12, the straight ejector pins 13, the first core-pulling block 14, the first core-pulling rod 15, the first stopper 16, the second core-pulling block 17, the second core-pulling rod 18, the stopper presser 19, the remainder ejector pins 20, etc. are used more herein, these terms are used only for convenience in describing and explaining the essence of the present utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. An injection mold for a washing machine panel, including an upper template (1), a lower template (2) and a molding cavity (3) disposed between the upper template (1) and the lower template (2), characterized in that: The molding cavity (3) is annular, and the center of the molding cavity (3) is provided with a split-type glue inlet flow channel structure. There are also four No. 1 core pullers distributed in a rectangular array on the outside of the molding cavity (3). assembly (4) and a No. 2 core-pulling assembly (5). The lower side of the lower template (2) is also provided with an externally expanded ejection mechanism.

2. The washing machine panel injection mold according to claim 1, characterized in that the center of the upper template (1) is recessed inwardly and provided with a groove (6) connected to the molding cavity (3), and the There is a boss (7) protruding from the center of the lower template (2) connected to the inside of the molding cavity (3). The upper end surface of the boss (7) offsets the bottom of the groove (6) and forms a sealed connection. , the split-type glue flow channel structure is arranged at the connection between the boss (7) and the groove (6).

3. The washing machine panel injection mold according to claim 2, characterized in that the split-type glue inlet flow channel structure includes a glue inlet flow connected to the glue inlet (8) provided on the upper template (1). The channel (9) also includes a number of split flow channels (10) connected to the glue inlet flow channel (9) and arranged circumferentially along the center line of the glue inlet flow channel (9). The split flow channels (10) The side away from the glue inlet flow channel (9) is connected to the molding cavity (3).

4. The washing machine panel injection mold according to claim 3, characterized in that the split flow channel (10) consists of an upper flow channel arranged on the groove (6) and a lower flow channel arranged on the boss (7). Tao combination is formed.

5. The washing machine panel injection mold according to claim 4, characterized in that the externally expanded ejection mechanism includes an ejector fixing plate (11), and a plurality of ejector fixing plates (11) are provided with Inclined ejector rod (12), several inclined ejector rods (12) are evenly distributed on both sides of the molding cavity (3), and the bottom of the inclined ejector rod (12) is hinged with the ejector rod fixed plate (11).

6. The washing machine panel injection mold according to claim 5, characterized in that, the ejector fixing plate (11) is also fixedly connected with a number of circumferentially arranged straight ejector pins (13) and a number of circumferentially arranged straight ejector pins. The remaining material thimble (20).

7. The washing machine panel injection mold according to claim 1, characterized in that the No. 1 core-pulling assembly (4) includes a No. 1 core-pulling block slidably connected to the No. 1 limiting structure and the lower template (2). (14), the inner end of the No. 1 core block (14) has a No. 1 core block inserted into the molding cavity (3), and the upper template (1) is fixedly connected with a No. 1 core block inserted obliquely into the molding cavity (3). No. 1 core-pulling rod (15) in the core block (14).

8. The washing machine panel injection mold according to claim 7, characterized in that the No. 1 limit structure includes a No. 1 limit block (16) arranged on the lower template (2), and the No. 1 limiter The cross-section of the bit block (16) is T-shaped and is inserted into the No. 1 limit chute at the bottom of the No. 1 core-pulling block (14).

9. The washing machine panel injection mold according to claim 1, characterized in that the No. 2 core-pulling assembly (5) includes a No. 2 core-pulling block slidably connected to the No. 2 limiting structure and the lower template (2). (17), the inner end of the No. 2 core-pulling block (17) has a No. 2 core block inserted into the molding cavity (3), and the upper template (1) is fixedly connected with at least two obliquely inserted into The No. 2 core-pulling rod (18) in the No. 2 core-pulling block (17).

10. The washing machine panel injection mold according to claim 9, characterized in that the No. 2 limiting structure includes limiting pressure plates fixed on the lower template (2) and located on both sides of the No. 2 core-pulling block (17). (19).