CN115071068B - Injection mold is used in production of household electrical appliances shell - Google Patents

Abstract

The invention discloses an injection mold for producing a household appliance shell, which belongs to the technical field of household appliance shell production and comprises a first mold and a second mold which are mutually matched, wherein the first mold is of an inverted L-shaped structure; the first mould is provided with an auxiliary through groove, an auxiliary mould is slidably connected in the auxiliary through groove, at least one injection molding hole is formed in the first mould, the injection molding hole extends through the auxiliary mould, an injection molding pipe is connected in the injection molding hole, a matched mould groove is formed in the second mould, the first mould is sealed and propped against the second mould and forms an L-shaped mould cavity together with the mould groove, the injection molding hole and the injection molding pipe are communicated with the vertical part of the mould cavity, the injection molding pipe does not extend into the mould cavity all the time, and the injection molding hole extends into the mould cavity when the auxiliary mould moves downwards; when the injection molding machine is used for injection molding, the first mold and the second mold do not move, and the auxiliary mold can move upwards or downwards. The invention solves the problem of low sealing performance of the plate cover and can reduce the damage rate of the plate cover.

Description

Injection mold is used in production of household electrical appliances shell

Technical Field

The invention relates to an injection mold for producing a household appliance shell, and belongs to the technical field of household appliance shell production.

Background

The household appliance comprises a plurality of plastic products, in order to improve the performance of the product such as aesthetic property, assembly and the like, some plastic products need to be manufactured with a layer of plastic of another material in the plastic of one material, some plastic products are made with two different colors, and some plastic products are made with two different hardness, so that the plastic products are applied to a double-color injection molding process. The core of the double-color injection molding process is a double-color injection mold, which is a mold for injecting two different plastics in sequence and generating a double-color product, so that an injection molded part is a molding process formed by two materials.

The sealing strip can be inlayed to the inner periphery of the plate cover of current household electrical appliances, and plate cover and sealing strip be two individualities to separate for a few, but the sealing strip drops easily, and the long-term suitability that also can appear of live is poor, leads to the plate cover leakproofness to reduce, and plate cover and sealing strip pass through adhesive bonding for a few, but the glue feature of environmental protection is poor, meets the water and also can appear the phenomenon that the sealing strip drops, influences the leakproofness of plate cover, and some plate covers pass through high-pressure pressfitting with the sealing strip, and the plate cover spoilage is high during nevertheless the pressfitting.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the injection mold for producing the household appliance shell, which can improve the connection compactness and stability of the plate cover and the sealing strip, solve the problem of low sealing property of the plate cover and reduce the damage rate of the plate cover.

In order to achieve the purpose, the invention adopts the following technical scheme: an injection mold for producing a household appliance shell comprises a first mold and a second mold which are mutually matched, wherein the first mold is of an inverted L-shaped structure, and the first mold and the second mold are connected to a base;

the first mould is provided with an auxiliary through groove, an auxiliary mould is connected in the auxiliary through groove in a sliding mode, at least one injection molding hole is formed in the first mould and extends through the auxiliary mould, an injection molding pipe is connected in the injection molding hole, a matched mould groove is formed in the second mould, the first mould is in sealed abutting seat on the second mould and forms an L-shaped mould cavity together with the mould groove, the injection molding hole and the injection molding pipe are communicated with the vertical part of the mould cavity, the injection molding pipe does not extend into the mould cavity all the time, and the injection molding hole extends into the mould cavity when the auxiliary mould moves downwards;

when the injection molding machine is used for injection molding, the first mold and the second mold do not move, and the auxiliary mold can move upwards or downwards.

Preferably, supplementary mould is through the vertical single-axis drive of two symmetries, two vertical single-axis drive symmetrical arrangement is on a parallel with base plate length direction's both sides at first mould, supplementary mould and vertical single-axis drive's slider fixed connection, vertical single-axis drive passes through support column fixed connection on the base, the support column still with first mould fixed connection.

Preferably, during injection molding, the upward moving distance of the auxiliary mold is equal to or greater than the downward moving distance of the auxiliary mold.

Preferably, when the first mold and the second mold are opened or closed, the first mold does not move, the second mold horizontally moves linearly, the vertical plate of the first mold is fixedly connected to the base, and the second mold is slidably connected to the base through a horizontal single-shaft driver;

when the die is closed, the second die horizontally moves towards the direction close to the first die until the second die is tightly abutted against the vertical plate of the first die; and when the mold is opened, the second mold horizontally moves towards the direction away from the first mold until the second mold is completely separated from the first mold.

Preferably, the horizontal single-axis drive of second mould through two symmetries, two horizontal single-axis drive all follow the length direction fixed connection of base on the base, are provided with two sliders on every horizontal single-axis drive, two sliders on every horizontal single-axis drive respectively with the both ends fixed connection that base length direction arranged is followed to second mould bottom surface.

Preferably, the injection molding pipe is fixedly connected with the injection molding hole in the first mold, the injection molding pipe is in sliding connection with the injection molding hole in the auxiliary mold, the upper end of the injection molding hole in the auxiliary mold is communicated with the embedded sliding groove, and the embedded sliding groove is not communicated with the mold cavity all the time.

Preferably, two the symmetry is provided with Rong Huacao on the support column, two it is provided with the retaining member to hold the spout internal symmetry, the retaining member is kept away from the one end cooperation of holding the spout and is had crouch T type groove, crouch T type groove arranges on the side that the second mould is close to the support column.

Preferably, the locking part comprises a clamping block, a driving shaft and a small motor, the small motor is arranged in the containing chute, the small motor is fixedly connected with the clamping block through the driving shaft, the clamping block is matched with the horizontal T-shaped groove, and the small motor drives the clamping block to rotate for 90 degrees;

during injection molding, the clamping block is in a vertical state, and the side surface of the clamping block, which is close to the horizontal part of the horizontal T-shaped groove, is abutted against the groove wall of the vertical part of the horizontal T-shaped groove, which is close to the horizontal T-shaped groove; when the mold is opened or closed, the clamping block is in a horizontal state, and the clamping block can horizontally move in the horizontal part of the horizontal T-shaped groove.

Preferably, through grooves are symmetrically formed in the two support columns, a support spring fixedly connected with the base is arranged in each through groove, a transition plate is fixedly connected to one end, far away from the base, of each support spring, one end, far away from the base, of each transition plate is fixedly connected to a sliding block of the vertical single-shaft driver, and the driving shaft is rotatably connected with the transition plate;

during the first injection molding, the fixture block is positioned at the lowest end of the vertical part of the horizontal T-shaped groove; when moulding plastics for the second time, the vertical portion that the retaining member is located crouching T groove is located the crossing position of horizontal part that crouches T groove with the fixture block.

Preferably, a sealing gasket is embedded at the position where the inner surface of the first mold is contacted with the edge of the mold cavity.

Preferably, a cooling chamber is arranged in the first die, and a liquid inlet pipe and a liquid outlet pipe are communicated with the cooling chamber.

Preferably, the auxiliary through groove is arranged into a U-shaped structure, a C-shaped structure, an L-shaped structure or a straight-line structure; when supplementary logical groove is U type structure, C type structure, the opening that supplementary logical groove deviates from the setting with the pipe of moulding plastics.

The invention has the beneficial effects that: 1. according to the invention, the auxiliary mold is arranged on the first mold, the auxiliary mold moves up and down, during injection, the soft material can be embedded in the hard material for injection molding, the sealing strip and the plate cover are closely connected, the connection stability is high, the plate cover does not fall off, the sealing property of the plate cover is effectively improved, and the condition that the plate cover is damaged due to press fit with the sealing strip is also avoided.

2. The second mold horizontally moves relative to the first mold, so that mold opening or mold closing in the horizontal direction is realized, injection molded parts are convenient to take out, operation of mechanical part taking equipment is also convenient, damage to the injection molded parts is reduced, and machining efficiency is improved.

3. The locking piece and the horizontal T-shaped groove are matched with each other, so that the second mold and the first mold are always tightly combined during injection molding, and the opening or closing of the second mold and the first mold is not limited.

4. The locking member of the present invention also cooperates with the vertical single-axis actuator to determine the stage of injection molding when the second mold is urged into close engagement with the first mold.

Drawings

FIG. 1 is a schematic structural diagram of an injection mold according to the present invention.

FIG. 2 is a top view of the injection mold of the present invention during the first injection.

FIG. 3 isbase:Sub>A vertical cross-sectional view taken along the length of the base, A-A, of the injection molded tube of FIG. 2.

Fig. 4 is a vertical sectional view in the base width direction, i.e., B-B direction, between two support columns in fig. 2.

Fig. 5 is an enlarged view at C in fig. 3.

FIG. 6 is a vertical cross-sectional view along the length of the base during a second shot of the injection mold of the present invention.

FIG. 7 is a vertical cross-sectional view along the width of the base between two support columns during a second shot of the injection mold of the present invention.

Fig. 8 is a state diagram of a mold closing or opening process of the injection mold of the present invention.

Fig. 9 is a vertical sectional view in the width direction of the base between two support columns during the closing or opening process of the injection mold of the present invention.

Fig. 10 is a view showing a state where the first mold and the second mold of the injection mold of the present invention are completely separated.

In the figure: 1. the device comprises a base, 2, a first die, 3, a second die, 31, a die cavity, 32, a horizontal T-shaped groove, 4, a die cavity, 5, an auxiliary die, 51, an embedded sliding groove, 6, an injection hole, 7, an injection pipe, 8, a locking piece, 81, a clamping block, 82, a driving shaft, 83, a small motor, 9, a supporting column, 91, rong Huacao, 92, a through groove, 10, a horizontal single-shaft driver, 11, a vertical single-shaft driver, 12, a transition plate, 13, a supporting spring, 14, a sealing gasket, 15, a cooling chamber, 151, a liquid inlet pipe, 152 and a liquid outlet pipe.

Detailed Description

The technical solutions in the implementation of the present invention will be made clear below with reference to the accompanying drawings, and the described embodiments are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 10, the present invention provides an injection mold for manufacturing a housing of a home appliance.

Referring to fig. 1 to 5, an injection mold for producing a housing of a household appliance according to an embodiment of the present invention includes a first mold 2 and a second mold 3, the first mold 2 and the second mold 3 are adapted to each other, the first mold 2 is in an inverted L-shaped structure, the first mold 2 can be hermetically clamped on the second mold 3, the second mold 3 is provided with an adaptive mold groove 31, a cross-slope of a plate cover processed according to the present invention is in an L-shaped structure, the mold groove 31 is hermetically sealed by an inner surface of the first mold 2 to form a mold cavity 4, the mold cavity 4 is in an L-shaped structure, one end of a top surface of the first mold 2 is provided with at least one injection hole 6, the injection hole 6 is located at one end of the first mold 2 away from a vertical plate of the first mold 2 and is communicated with a vertical portion of the mold cavity 4, all the injection holes 6 are located at the same end of the top surface of the first mold 2, the injection holes 6 are two injection holes 6, each injection pipe 7 is connected in the injection hole 6, the injection molding pipe 7 is communicated with the mold cavity 4, in order to improve the connection compactness and stability between a plate cover and a sealing strip of an injection molding part and improve the sealing property of the plate cover, the cross slope of the plate cover processed by the invention is in an L-shaped structure, when the plate cover is injected, an injection molding groove is formed on the inner periphery of the plate cover, the front view of the vertical projection of the injection molding groove can be a U-shaped groove or a C-shaped groove with an open structure or an L-shaped groove or a straight-line-shaped groove, the shape of the injection molding groove is selected according to the sealing condition of the plate cover required by a household appliance, in addition, the injection groove is only displayed on the injection molded plate cover, in order to form the injection groove when the plate cover is injected, an auxiliary through groove matched with the sealing sliding connection of an auxiliary mold 5 is arranged, the bottom end of the auxiliary mold 5 can extend into the mold cavity, the auxiliary through groove is arranged on the first mold 2, and the opening of the auxiliary through groove and the injection molding pipe 7 are mutually deviated, the injection molding hole 6 extends to the auxiliary mold 5 to be communicated with the mold cavity 4, the injection molding pipe 7 extends and is connected in the injection molding hole 6 of the auxiliary mold 5, the injection molding hole 6 can extend into the mold cavity 4 along with the downward movement of the auxiliary mold 5, the injection molding hole 6 is communicated with the mold cavity 4 along with the upward movement of the auxiliary mold 5, but the injection molding pipe 7 does not extend into the mold cavity 4 all the time, when in injection molding, the auxiliary mold 5 is pushed to move downward to enable the bottom end of the auxiliary mold 5 to extend into the mold cavity 4, the hard material is firstly injected, the plate cover is firstly injected, namely, when in first injection molding, the hard liquid material enters the mold cavity 4 through the injection molding pipe 7, is cooled to form the plate cover with a solid structure, the auxiliary mold 5 is pushed to move upward, and at the plate cover with the solid structure forms an injection molding groove, because the auxiliary mold 5 adopts a U-shaped structure, the injection molding groove is a U-shaped groove, the auxiliary mold 5 is moved upwards to be flush with the inner top surface of the first mold 2 or the auxiliary mold 5 is moved upwards to be higher than the inner top surface of the first mold 2, then the liquid soft material is injected, the sealing strip is injected, namely, the sealing strip is cooled during the second injection molding, the solid sealing strip connected to the plate cover with the solid structure is formed, then the mold is opened, the injection molding part, namely, the plate cover with the sealing strip is injected, the sealing strip is embedded and injected into the plate cover, and the sealing performance of the plate cover is effectively improved.

Based on the first embodiment, the second embodiment, in order to more conveniently take out the injection molding part, the injection molding part of the present embodiment is the plate cover and the sealing strip which are molded together, but the existing injection molding part is taken out manually, which has a large labor intensity and a low processing efficiency, and when the injection molding part is difficult to take out, the injection molding part is deformed by the force of personnel, so that the yield is reduced, in order to improve the processing efficiency and reduce the damage to the injection molding part, the injection molding part is taken out by using a taking device when the injection molding part is taken out, the taking device is not the content of the present invention, the drawing does not show the taking device, and with reference to fig. 8 and fig. 10, when the first mold 2 and the second mold 3 are opened or closed, the second mold 3 horizontally moves relative to the first mold 2, and the mold opening and separating process is as follows: the first die 2 is fixed, the second die 3 moves relative to the first die 2, the second die 3 moves horizontally and linearly in the direction far away from the first die 2, so that the die cavity 4 arranged on the second die 3 gradually extends out of the first die 2 until the second die is completely exposed outside the first die 2, or the die cavity 4 can be positioned obliquely below the first die 2, namely the vertically downward projection of the first die 2 does not fall on the die cavity 4, and the first die 2 is completely separated from the second die 3, so that the phenomenon that the upper die is detached during each die opening in the prior art is effectively solved, a feed nozzle or a feed pipe is also prevented from being pulled out during each die detaching, and the abutting and die closing process of the first die 2 and the second die 3 is opposite to the die opening and separating process of the first die 2 and the second die 3.

According to a further technical scheme, for an injection-molded sealing strip, according to the condition that an opening between a plate cover of a household appliance and a household appliance main body is covered, the sealing strip can be flush with the inner side outer edge of the plate cover and can also extend out of the inner side outer edge of the plate cover, and the attached drawings show the condition that the sealing strip is flush with the inner side outer edge of the plate cover, if the sealing strip is flush with the inner side outer edge of the plate cover, the upward moving distance of an auxiliary mold 5 is equal to the downward moving distance of the auxiliary mold 5, if the sealing strip extends out of the inner side outer edge of the plate cover, the upward moving distance of the auxiliary mold 5 is greater than the downward moving distance of the auxiliary mold 5, and during injection molding, when the auxiliary mold 5 moves downward for a certain distance, the upward moving distance of the auxiliary mold 5 can be equal to the downward moving distance of the auxiliary mold 5 and can also be greater than the downward moving distance of the auxiliary mold 5, so that sealing types of different structures of the plate cover and the sealing strip can be processed.

According to a further technical scheme of the invention, after the first injection molding and cooling are completed to form the solid plate cover, the auxiliary mold 5 is moved upwards, but the first mold 2 does not move, namely the auxiliary mold 5 moves up and down relative to the stationary first mold 2, the auxiliary mold 5 is driven to move up and down by two synchronous and same-speed vertical single-shaft drivers 11, sliders of the vertical single-shaft drivers 11 are fixedly connected with the top end of the auxiliary mold 5, the vertical single-shaft drivers 11 are fixedly connected to the supporting columns 9, the supporting columns 9 are fixedly connected to two sides of the first mold 2 parallel to the length direction of the base 1, and the supporting columns 9 are fixedly connected to the base 1, so that the stability of the first mold 2 can be further improved.

According to a further technical scheme of the invention, in order to enable the auxiliary mold 5 to move upwards and slide, the injection molding pipe 7 does not move, namely the injection molding pipe 7 is fixedly connected with the injection molding hole 6 on the first mold 2, the injection molding pipe 7 is in sliding connection with the injection molding hole 6 on the auxiliary mold 5, the auxiliary mold 5 is provided with an embedding sliding groove 51, the embedding sliding groove 51 is communicated with the upper end of the injection molding hole 6 on the auxiliary mold 5, the embedding sliding groove 51 is not communicated with the mold cavity 4 all the time, the embedding sliding groove 51 slides relative to the injection molding pipe 7, and the injection molding pipe 7 does not extend into the mold cavity 4 all the time.

According to a further technical scheme of the invention, the second die 3 is driven by two parallel horizontal single-axis drivers with the same speed and in a synchronous mode to move horizontally along the length direction of the base 1, in order to further keep the stability of the second die 3 during moving and enable pushing to be more uniform during moving, two sliding blocks are arranged on each horizontal single-axis driver 10, and the two sliding blocks of each horizontal single-axis driver 10 are respectively and fixedly connected to two ends of the bottom surface of the second die 3, which are arranged along the moving direction of the second die 3.

The invention further provides a technical scheme, which is combined with the figures 1, 4, 7, 9 and 10, the tight connection performance of the first mold 2 and the second mold 3 during injection molding is enhanced, two lateral surfaces, close to a support column 9, of the second mold 3 are provided with symmetrical horizontal T-shaped grooves 32 with horizontal T-shaped structures, the horizontal T-shaped grooves 32 play a role in a vertical part of the horizontal T-shaped grooves 32 and are matched with a locking piece 8, the locking piece 8 is locked and tightly abutted against the vertical part of the horizontal T-shaped grooves 32 and used for limiting the impact force of liquid materials on the second mold 3 during injection molding and avoiding gaps between the first mold 2 and the second mold 3, the horizontal part of the horizontal T-shaped grooves 32 plays a role on the other hand, the locking piece 8 is opened, the movement of the second mold 3 is not limited by the locking piece 8 any more and is used for opening a mold opening when the second mold 3 and the first mold 2 are opened, the locking piece 8 comprises a clamping block 81 for locking the second mold 3, the fixture block 81 is fixedly connected with a driving shaft 82, one end of the driving shaft 82, which is far away from the fixture block 81, is fixedly connected with a small motor 83, the small motor 83 is accommodated in the accommodating sliding groove 91, rong Huacao is arranged on the supporting column 9, the fixture block 81 is accommodated in the horizontal T-shaped groove 32 and is driven by the small motor 83, the fixture block 81 rotates 90 degrees, so that the fixture block 81 is locked or unlocked relative to the horizontal T-shaped groove 32, during injection molding, the fixture block 81 is always vertically accommodated in the vertical part of the horizontal T-shaped groove 32, the side surface, which is close to the horizontal part of the horizontal T-shaped groove 32, of the fixture block 81 is abutted and attached to the groove wall, which is close to the horizontal part of the horizontal T-shaped groove 32, of the vertical part of the horizontal T-shaped groove 32, during mold opening or mold closing of the first mold 2 and the second mold 3, the fixture block 81 is always in the horizontal state, and the side surface, which is close to the horizontal part 32 of the fixture block 81, during locking, is upward during mold opening or mold closing.

In order to reduce the buffer of the upward or downward movement of the auxiliary mold 5 on the collision of the injection molding pipe 7, a transition plate 12 is connected to a slide block of a vertical single-shaft driver 11, the other end of the transition plate 12, which is far away from the slide block of the vertical single-shaft driver 11, is rotatably sleeved with a driving shaft 82, a support spring 13 is fixedly connected to the other end of the transition plate 12, which is far away from the slide block of the vertical single-shaft driver 11, a support spring 13 is fixedly connected to a through groove 92, the through groove 92 is arranged on a support column 9, the support spring 13 can play a role of buffering the upward or downward movement of the auxiliary mold 5 on one hand, and also supports a locking member 8 on the other hand, the locking member 8 can move up and down along with the vertical single-shaft driver 11, so that an operator can judge the stage of injection molding according to the position when the locking member 8 is locked, and when the locking member 8 is located at the lowest end of the vertical portion of the horizontal T-shaped groove 32, as shown in fig. 3 and 4, at the first injection molding stage, when the locking member 8 is located at the position where the vertical portion of the horizontal T-shaped groove 32 intersects with the horizontal portion of the horizontal T-shaped groove 32, as shown in fig. 6 and 7, at the second injection stage.

In order to further improve the sealing performance of the mold cavity 4, the sealing gasket 14 is embedded at the position, contacting with the edge of the mold cavity 4, of the inner surface of the first mold 2, the sealing gasket 14 arranged on the inner surface of the vertical plate of the first mold 2 has certain buffering performance on the second mold 3 at the moment of mold closing of the first mold 2, collision of the second mold 3 and the first mold 2 is reduced, and the sealing effect of the second mold 3 and the first mold 2 is further improved.

According to a further technical scheme, an inverted L-shaped cooling chamber 15 is arranged in a first mold 2, a liquid inlet pipe 151 and a liquid outlet pipe 152 are communicated with the cooling chamber 15, the liquid inlet pipe 151 and the liquid outlet pipe 152 respectively penetrate out of the first mold 2, the liquid inlet pipe 151 is arranged at one end, close to an injection molding pipe 7, of the cooling chamber 15, and the liquid outlet pipe 152 is arranged at one end, far away from the injection molding pipe 7, of the cooling chamber 15.

In the working process, the horizontal single-axis driver 10, the vertical single-axis driver 11 and the small motor 83 of the invention are all connected with a controller, the controller belongs to the prior art and is not a protection technical scheme of the invention, so the description is not made, as long as the horizontal single-axis driver 10, the vertical single-axis driver 11 and the small motor 83 are controlled to realize the purposes of mold closing, injection molding and mold opening, specifically, the first mold 2 and the second mold 3 are closed, as shown in fig. 8 and 9, the controller controls a sliding block of the horizontal single-axis driver 10 to drive the second mold 3 to move towards the lower part of the first mold 2 until the second mold 3 is tightly abutted against the lower part of the first mold 2 to form a mold cavity 4, the controller controls the small motor 83 to drive a fixture block 81 to rotate to a vertical state, the side surface of the horizontal part of the fixture block 81 close to the horizontal T-shaped groove 32 is tightly abutted against the groove wall of the vertical part of the horizontal T-shaped groove 32 close to the horizontal part of the horizontal T-shaped groove 32, the controller controls the vertical single-shaft driver 11 to drive the auxiliary mold 5 to move downwards, as shown in fig. 3 and 4, the bottom end of the auxiliary mold 5 extends into the mold cavity 4, the fixture block 81 also moves downwards to the lowest end of the vertical part of the horizontal T-shaped groove 32, the support spring 13 is in a compressed state, when the first injection molding is started, the liquid hard material enters the mold cavity 4 through the injection molding pipe 7, the liquid in the cooling chamber is cooled in a circulating manner, a plate cover with a solid structure is formed, the controller controls the vertical single-shaft driver 11 to drive the auxiliary mold 5 to move upwards to a required position, fig. 6 and 7 show the condition that the sealing strip is flush with the edge of the plate cover after the injection molding, the fixture block 81 also moves upwards to the position where the vertical part of the horizontal T-shaped groove 32 and the horizontal part of the horizontal T-shaped groove 32 intersect, the support spring 13 gradually recovers to perform the second injection molding, and the soft liquid material is injected, and cooling the liquid in the cooling chamber in a circulating manner to form a solid sealing strip connected to the plate cover of the solid structure, opening the die, controlling the small motor 83 by the controller to drive the clamping block 81 to rotate to a horizontal state as shown in fig. 8 and 9, controlling the sliding block of the horizontal single-shaft driver 10 by the rear controller to drive the second die 3 to move in the direction away from the first die 2 as shown in fig. 10 until the injection molded part completely leaves the first die 2, taking out the injection molded part by the part taking device, and then carrying out the next injection molded part.

Based on the situation of the first embodiment, the cross section of the plate cover which can be processed is in a U-shaped structure, an injection molding groove which can be a circular groove or a square ring groove is formed on the inner periphery of the plate cover, an injection molding part is taken out, the first mold 2 can be in a straight structure, the mode of opening the first mold 2 and the second mold 3 is the mold opening of an up-and-down structure, if only the first mold 2 moves upwards, or only the second mold 3 moves downwards, or the problem of inconvenient part taking exists, if the second mold 3 and the first mold 2 are convenient to use, the second embodiment needs to be combined, the second mold 3 and the first mold 2 are horizontally separated under the condition of being vertically separated, a lifting device is fixedly connected between the second mold 3 and a slide block of the horizontal single-shaft driver 10, the lifting device can drive the second mold 3 to move upwards and downwards, the lifting device can be an air cylinder or a single-shaft driver, and the situation that the cross section of the plate cover is in the U-shaped structure or the injection molding groove or the circular groove or the square ring groove is not shown in the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims (6)

1. The injection mold for producing the household appliance shell is characterized by comprising a first mold in an inverted L-shaped structure, wherein an auxiliary through groove is formed in the first mold, an adaptive auxiliary mold is slidably connected in the auxiliary through groove, at least one injection hole is formed in the first mold, the injection hole extends through the auxiliary mold, an injection pipe is connected in the injection hole, and the auxiliary mold is driven by a vertical single-shaft driver to move up and down;

the injection molding hole and the injection molding pipe are communicated with the vertical part of the mold cavity, the injection molding pipe does not extend into the mold cavity all the time, and the injection molding hole extends into the mold cavity when the auxiliary mold moves downwards;

the first die and the second die are connected to the base, the vertical single-shaft driver is connected to the base through a support column, and the support column and the two sides of the first die, which are parallel to the length direction of the base, are fixedly connected;

during injection molding, the first mold and the second mold do not move, and the auxiliary mold moves downwards and then upwards;

the vertical plate of the first die is fixedly connected with the base, and the second die is connected with the base in a sliding manner through a horizontal single-shaft driver;

when the first mold and the second mold are opened or closed, the first mold does not move, and the second mold moves horizontally and linearly in a direction away from the first mold or in a direction close to the first mold;

the two supporting columns are symmetrically arranged, and the two supporting columns are symmetrically arranged;

each locking piece comprises a clamping block and a small motor, the small motors are fixedly connected with the clamping blocks through driving shafts, the small motors drive the clamping blocks to rotate by 90 degrees, the small motors are arranged in the containing sliding grooves, the clamping blocks are arranged in the corresponding and matched horizontal T-shaped grooves, the containing sliding grooves are arranged on the supporting columns, and the horizontal T-shaped grooves are arranged on the side faces, close to the supporting columns, of the second mold;

during injection molding, the clamping block is always in a vertical state, and the side surface of the clamping block, which is close to the horizontal part of the horizontal T-shaped groove, is mutually abutted against the groove wall of the vertical part of the horizontal T-shaped groove, which is close to the horizontal part of the horizontal T-shaped groove; when the die is opened or closed, the clamping block is always in a horizontal state, and the clamping block can horizontally move in the horizontal part of the horizontal T-shaped groove;

during injection molding, the upward moving distance of the auxiliary mold is equal to or greater than the downward moving distance of the auxiliary mold;

the injection molding hole and the injection molding pipe on the first mold are fixedly connected, the injection molding hole and the injection molding pipe on the auxiliary mold are in sliding connection, the upper end of the injection molding hole on the auxiliary mold is communicated with an embedded sliding groove, and the embedded sliding groove is not communicated with the mold cavity all the time.

2. The injection mold for producing the shells of household appliances according to claim 1, wherein each support column is further provided with a through groove, a support spring is arranged in each through groove, two ends of each support spring are respectively and fixedly connected with the base and the transition plate, one end of each transition plate, far away from the support spring, is fixedly connected with the sliding block of the vertical single-shaft driver, the transition plate is further rotatably connected with the drive shaft, and the two through grooves are symmetrically arranged.

3. The injection mold for producing home appliance housings as claimed in claim 1, wherein a gasket is fitted in a position where the inner surface of the first mold contacts the edge of the cavity of the mold.

4. The injection mold for producing the shells of household electrical appliances of claim 1, wherein the auxiliary through grooves are arranged in a U-shaped structure, a C-shaped structure, an L-shaped structure or a straight-line structure.

5. The injection mold for producing the shells of the household electrical appliances of claim 1, wherein the horizontal single-axis drivers are respectively connected to two ends of the second mold arranged along the width direction of the base, each horizontal single-axis driver is arranged along the length direction of the base, two sliding blocks of each horizontal single-axis driver are arranged, and two sliding blocks of each horizontal single-axis driver are respectively fixedly connected to two ends of the bottom surface of the second mold arranged along the length direction of the base.

6. The injection mold for producing the shells of the household appliances according to claim 1, wherein a cooling chamber is arranged in the first mold, and a liquid inlet pipe and a liquid outlet pipe are communicated with the cooling chamber.

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