CN216544407U - Electric appliance box manufacturing mold - Google Patents

Abstract

The utility model provides a die for manufacturing an electric appliance box, which belongs to the technical field of dies and comprises a fixed die and a movable die, wherein a groove is formed in the fixed die and forms a concave die; when the fixed mold insert is not assembled in the groove, the empty avoiding hole of the transformer is hollowed out. The movable die, the movable die insert and the movable die form a male die. When being fixed with the cover half mold insert in the recess, after cover half and movable mould compound die: a first electrical box cavity is formed between the male die and the female die; and when the fixed mold insert is not arranged in the groove, a second electrical box cavity is formed between the male mold and the female mold. The die can be used for manufacturing an electric box with a transformer vacancy-avoiding position and an electric box without the vacancy-avoiding position, improves the application occasion of the die, reduces the die cost and has wide market prospect.

Description

Electric appliance box manufacturing mold

Technical Field

The utility model relates to the technical field of molds, in particular to a mold for manufacturing an electric appliance box.

Background

Injection molds are important process equipment for producing various industrial products, and are widely applied to various industries such as aviation, aerospace, electronics, machinery, ships, automobiles and the like. The traditional injection mold consists of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable template of an injection molding machine, and the fixed mold is arranged on a fixed template of the injection molding machine. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out the plastic product.

At present, an injection mold for manufacturing an electrical box is used for assembling a transformer in the electrical box for subsequent use, and a transformer clearance hole is formed in the mold. As shown in figure 1, the electric box manufactured by using the die is provided with a clearance 13, and an electric box cover 11 is required to be arranged at the clearance for sealing when in use. The box cover 11 of the electrical box is usually fixed on the main body 12 of the electrical box by using screws, the electrical box is a general object of an air conditioner, the demand is large, each electrical box needs to be screwed to fix the box cover, a large number of personnel can complete the production plan after long-time labor, and a large amount of manpower resources are wasted.

At present, due to the change of electrical components, partial air conditioner production lines do not need to be provided with electrical boxes with transformer clearance holes. If the original injection mold is modified, the injection mold can be used for manufacturing an electric box with a transformer vacancy-avoiding position and an electric box without a vacancy-avoiding position, so that the cost of producing the electric box by enterprises is reduced, and the benefit is improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, one of the purposes of the utility model is to provide a die for manufacturing an electrical box, which can be used for manufacturing the electrical box with a transformer for avoiding the vacancy and also can be used for manufacturing the electrical box without avoiding the vacancy, thereby improving the application occasions of the die, reducing the cost of the die and having wide market prospect.

An electrical box manufacturing mold comprising:

the fixed die comprises a fixed die main body, a groove is formed in the fixed die main body, the groove forms a concave die, a transformer clearance hole is formed in the groove, and when a fixed die insert is assembled in the groove, the fixed die insert fills the clearance hole; when the fixed mold insert is not assembled in the groove, the transformer clearance hole is hollowed out;

the movable die comprises a movable die main body, a movable die insert is fixedly arranged on one side of the movable die main body, and the movable die insert and the movable die main body form a male die;

when the fixed die insert is fixed in the groove, after the fixed die and the movable die are assembled: a first electrical appliance box cavity is formed between the male die and the female die and comprises a cavity A and a cavity B which are communicated with each other, the cavity A is formed between the fixed die main body and the movable die main body, and the cavity B is formed between the fixed die insert and the movable die insert; and when the fixed die insert is not arranged in the groove, a second electrical appliance box cavity is formed between the male die and the female die.

In a preferable technical scheme of the utility model, the fixed die further comprises an insert, the fixed die main body is provided with the groove, the bottom of the groove is provided with an embedding position, and the insert is fixed at the embedding position and is matched with the embedding position.

In a preferred technical scheme of the utility model, the clearance hole penetrates through the groove along the depth direction of the groove; the cover die is characterized in that a connecting groove is formed in the fixed die main body, a first accommodating groove corresponding to the connecting groove is formed in the embedded block, and the first accommodating groove and the connecting groove form a clearance hole.

In a preferred technical scheme of the utility model, the fixed mold insert comprises a first insert and a second insert, and the first insert is fixed in the clearance hole; the insert block is provided with a mounting hole, and the second insert is fixed in the mounting hole.

In a preferred technical scheme of the utility model, a connecting block is arranged on the first insert, and the connecting block is matched with the connecting groove;

one side of the first insert, which is far away from the connecting block, is provided with a first boss, the first boss is matched with the first accommodating groove, the first insert is fixed behind the clearance hole, the connecting block is tightly matched with the connecting groove, and the first boss is tightly matched with the first accommodating groove.

In a preferred technical scheme of the present invention, two sides of the first insert perpendicular to the first boss are provided with outwardly protruding connecting convex strips, and after the first insert is fixed to the clearance hole, the connecting convex strips are embedded into the insert block.

In a preferred technical scheme of the utility model, the groove comprises a first groove body and a second groove body, the first groove body is connected with the second groove body, a groove with an L-shaped cross section is formed between the first groove body and the second groove body, and the clearance hole is arranged in the second groove body.

In a preferred technical scheme of the utility model, the movable mold main body is provided with a mounting position, the movable mold insert is fixed on the mounting position to form the male mold with the movable mold main body, and the shape of the male mold corresponds to that of the female mold.

In a preferred technical scheme of the present invention, the mounting position is provided with a second receiving groove, the movable die insert is provided with a second boss, and the second boss is embedded in the second receiving groove after the movable die insert is fixed on the movable die main body.

In a preferred technical scheme of the utility model, an injection molding opening is arranged on the fixed die and is communicated with the groove;

the movable mould is provided with a plurality of thimbles, and one ends of the thimbles penetrate through the movable mould and extend into the grooves.

The beneficial effects of the utility model are as follows:

the utility model provides a die for manufacturing an electric appliance box, which comprises a fixed die and a movable die, wherein a groove is formed in the fixed die, the groove forms a concave die, a transformer clearance hole is formed in the groove, and the fixed die insert is arranged in the clearance hole, so that the transformer clearance hole can be filled or not filled. The movable die is provided with a movable die insert, and the movable die insert form a male die. When being fixed with the cover half mold insert in the recess, after cover half and movable mould compound die: a first electrical box cavity is formed between the male die and the female die; and when the fixed mold insert is not arranged in the groove, a second electrical box cavity is formed between the male mold and the female mold. The first electrical box cavity comprises a cavity A and a cavity B, the cavity A forms an electrical box main body after injection molding, and the cavity B forms an electrical box cover after injection molding, so that the electrical box manufactured by the first electrical box cavity is free of a transformer and avoids a vacancy, and the electrical box manufactured by the second electrical box cavity is provided with a transformer and avoids a vacancy. The mold disclosed by the utility model has the advantages that the insert and the insert are arranged on the original mold, so that the two electric appliance boxes with different structures are produced, and the mold opening cost of an enterprise is reduced. When the produced electric appliance box without avoiding the vacant position is applied, the production link of fixing the box cover on the electric appliance box main body can be saved, manpower and material resources are saved, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic diagram of an electrical box with transformer clearance space;

FIG. 2 is a perspective view of a mold for manufacturing an electrical box according to the present invention;

fig. 3 is a sectional view of the electric appliance box manufacturing mold provided by the present invention;

FIG. 4 is a schematic structural view of a stationary mold with a stationary mold insert secured thereto according to the present invention;

FIG. 5 is a schematic structural view of a stationary mold provided by the present invention without the stationary mold insert installed;

fig. 6 is a perspective view of a first insert provided by the present invention;

fig. 7 is a perspective view of a second insert provided by the present invention;

fig. 8 is a perspective view of the appliance cartridge manufacturing mold provided by the present invention without the first insert installed;

FIG. 9 is a perspective view of the present invention providing a movable mold fitted with a movable mold insert;

FIG. 10 is a perspective view of a movable mold body provided by the present invention;

FIG. 11 is a perspective view of a moving die insert provided in accordance with the present invention;

fig. 12 is a schematic diagram of the structure of the electrical box without the transformer clearance space.

Reference numerals:

11. an electrical appliance box cover; 12. an electrical box body; 13. avoiding vacant positions; 100. fixing a mold; 110. a fixed die main body; 111. connecting grooves; 112. a first accommodating groove; 113. avoiding a void; 114. mounting holes; 120. An insert block; 130. a groove; 131. a first tank body; 132. a second tank body; 140. a fixed die insert; 141. a first insert; 142. a second insert; 1411. connecting blocks; 1412. a first boss; 1413. Connecting convex strips; 200. moving the mold; 210. a thimble; 220. a movable die insert; 230. an installation position; 240. A movable mold main body; 2301. a second accommodating groove; 2201. a second boss; 300. a first electrical box cavity; 310. a cavity A; 320. and a cavity B.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that, although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 2 to 11, an electrical box manufacturing mold includes:

the fixed die 100 comprises a fixed die main body 110, a groove 130 is formed in the fixed die main body 110, a concave die is formed by the groove 130, a transformer clearance hole 113 is formed in the groove 130, and when a fixed die insert 140 is assembled in the groove 130, the clearance hole 113 is filled with the fixed die insert 140; when the fixed mold insert 140 is not assembled in the groove 130, the transformer clearance hole 113 is hollowed out;

the moving die 200 comprises a moving die main body 240, a moving die insert 220 is fixedly arranged on one side of the moving die main body 240, and the moving die insert 220 and the moving die 200 form a male die;

when the fixed mold insert 140 is fixed in the groove 130, after the fixed mold 100 and the movable mold 200 are assembled: a first electrical appliance box cavity 300 is formed between the male die and the female die, the first electrical appliance box cavity 300 comprises a cavity A310 and a cavity B320 which are communicated with each other, the cavity A310 is formed between the fixed die main body 110 and the movable die main body 240, and the cavity B320 is formed between the fixed die insert 140 and the movable die insert 220; when the fixed mold insert 140 is not arranged in the groove 130, a second electrical appliance box cavity is formed between the male mold and the female mold.

More specifically, the electrical box produced by injection molding of the first electrical box cavity 300 is free of the transformer clearance hole 113, so that the electrical box cover does not need to be installed. The electrical box cover produced by injection molding of the second electrical box cavity is provided with a transformer space avoiding position 13, and the space avoiding position 13 is required to be fixed on the electrical box cover during industrial application.

Further, the fixed die 100 further comprises an insert 120, the groove 130 is formed in the fixed die main body 110, a clamping position is formed at the bottom of the groove 130, and the insert 120 is fixed at the clamping position and matched with the clamping position. Further, the insert 120 and the retainer facilitate sealing against each other to prevent plastic from flowing out during injection molding. The design of the stationary mold 100 including the combination of the stationary mold body 110 and the insert 120 can reduce the production cost on the one hand and facilitate lean production on the other hand. The female die forms a shell of the electric appliance box, the male die forms a cavity of the electric appliance box after demolding is completed after injection molding, and electric appliance parts are installed in the cavity. The electrical box manufactured by using the die is provided with an opening on one side, various electrical components are fixed through the opening, and then the electrical box with the fixed electrical components is fixed on the air conditioner main body. The fixed electric box is fixed on the air conditioner main body at one side of the opening, so that the electric box is hermetically arranged on the air conditioner main body.

More specifically, the electrical apparatus box mold manufacturing that this patent provided changes the shape of original mould through set up the mould mold insert on original mould to realize electrical apparatus box lid integration production. The fixed mold insert 140 is arranged on the fixed mold 100, and the fixed mold insert 140 is matched with the fixed mold 100 to form the external shape characteristic of the electric appliance box. The movable die insert 220 is matched with the movable die 200 to form the internal shape characteristics of the electrical box. After the movable die 200 and the fixed die 100 are assembled, a box cover integrated electrical box cavity can be formed. The electric appliance box with the integrated box cover can be obtained after injection molding, the original production mode that the electric appliance box is sealed by the electric appliance box cover is changed, and the production cost is reduced. It should be noted that the mold includes holes for mounting various electrical components, which will not be described in detail herein due to space limitations. In addition, a heating rod hole is further formed in the fixed die 100 and used for installing a heating rod.

The above-mentioned mold for manufacturing an electrical box includes the fixed mold 100 and the movable mold 200, the fixed mold 100 is provided with the groove 130, the groove 130 forms a concave mold, the groove 130 is provided with the transformer clearance hole 113, and the fixed mold insert 140 is disposed in the clearance hole 113, so that the transformer clearance hole 113 can be filled or the transformer clearance hole 113 can be hollowed out. The movable die 200 is provided with a movable die insert 220, and the movable die 200 and the movable die insert 220 form a male die. When the fixed mold insert 140 is fixed in the groove 130, after the fixed mold 100 and the movable mold 200 are assembled: a first electrical box cavity 300 is formed between the male die and the female die; when the fixed mold insert 140 is not arranged in the groove 130, a second electrical appliance box cavity is formed between the male mold and the female mold. The first electrical box cavity 300 is free of clearance holes 113 and the second electrical box cavity has clearance holes 113. The mold can produce two electric appliance boxes with different structures by arranging the insert and the insert, and can reduce the mold opening cost of enterprises. And the production link of fixing the box cover on the main body of the electric appliance box can be omitted when the produced electric appliance box without the clearance hole 113 is applied, so that manpower and material resources are saved, and the manufacturing cost is reduced.

As shown in fig. 4-5, further, the groove 130 includes a first slot 131 and a second slot 132, the first slot 131 is connected to the second slot 132, and the groove 130 with an L-shaped cross section is formed between the first slot 131 and the second slot 132; be equipped with in the second cell body 132 and avoid empty hole 113 and mounting hole 114, avoid empty hole 113 follows the degree of depth direction 132 of second cell body runs through the cover half main part 110, mounting hole 114 sets up on the abaculus 120. Further, the fixed mold insert 140 is disposed in the second trough 132, the fixed mold insert 140 includes a first insert 141 and a second insert 142, the first insert 141 is fixed in the clearance hole 113, and the second insert 142 is fixed in the mounting hole 114.

The first insert 141, the second insert 142, the first slot 131 and the second slot 132 form the complete groove 130. That is, after the first insert 141 is fixed to the clearance hole 113 and the second insert 142 is fixed to the mounting hole 114, the groove 130 becomes an electrical box main body housing cavity with one side open and a sealed bottom. The cross-sectional area of the second slot 132 is greater than the cross-sectional area of the first slot 131. When the fixed mold insert 140 is not installed, the fixed mold 100 and the movable mold 200 are assembled and then injection-molded to form the transformer clearance hole 113 through the clearance hole 113 formed in the second groove 132. After the fixed mold insert 140 is installed, the fixed mold 100 and the movable mold 200 are assembled, and then the clearance hole 113 can form a plane of the cover of the electrical appliance box after injection molding, and more specifically, the first insert 141 and the fixed mold main body 110 are tightly matched to form a plane of the cover of the electrical appliance box at the first insert 141 after injection molding. More specifically, the first insert member 141 is provided with outwardly protruding coupling beads 1413 on both sides perpendicular to the first bosses 1412, and after the first insert member 141 is fixed to the clearance hole 113, the coupling beads 1413 are fitted into the insert block 120.

Further, as shown in fig. 3 to 4, a connecting block 1411 is arranged on the first insert 141, a connecting groove 111 is arranged on the fixed mold body 110, and the connecting block 1411 is adapted to the connecting groove 111;

a first boss 1412 is arranged on one side of the first insert 141 facing away from the connecting block 1411, a first accommodating groove 112 matched with the first boss 1412 is arranged on the insert 120, after the first insert 141 is fixed in the clearance hole 113, the connecting block 1411 is tightly matched with the connecting groove 111, and the first boss 1412 is tightly matched with the first accommodating groove 112. The first insert 141 is fixed to the fixed mold body 110 at one side by a sidewall of the connecting block 1411 and the connecting groove 111 that are engaged with each other, and fixed to the insert 120 at the other side by the first protrusion 1412 and the first receiving groove 112 that are engaged with each other. A screw is further provided between the first insert 141 and the insert 120.

Further, as shown in fig. 8-10, the movable mold main body 240 is provided with a mounting position 230, the movable mold insert 220 is fixed on the mounting position 230 to form the male mold with the movable mold main body 240, and the male mold corresponds to the shape of the female mold. Further, a second receiving groove 2301 is formed in the mounting position 230, a second boss 2201 is arranged on the movable die insert 220, and after the movable die insert 220 is fixed on the movable die main body 240, the second boss 2201 is embedded in the second receiving groove 2301. The movable die insert 220 is better positioned on the mounting position 230 by the mutual matching of the second boss 2201 and the second receiving groove 2301. It should be noted that, the movable mold insert 220 is fixed on the movable mold 200, except for the mutual matching between the second boss 2201 and the second receiving groove 2301, screws are also needed for fixing, and the screw holes after screw fixing need to be filled with copper, so as to prevent plastic from being filled in the holes during injection molding.

Further, an injection port is formed in the fixed mold 100, and the injection port is communicated with the groove 130; and in the injection molding process, plastic is injected into the cavity of the electrical appliance box with the integrated box cover through the injection molding opening.

A plurality of ejector pins 210 are arranged on the movable die 200, and one ends of the ejector pins 210 penetrate through the movable die 200 and extend into the grooves 130. The thimble 210 is used for ejecting the formed electrical box after the injection molding is finished.

A method of manufacturing an electrical box, the method being performed using the mold described above, the method comprising the steps of:

when an electrical box without a transformer clearance space 13 needs to be manufactured:

assembling the fixed die 100, and fixing the fixed die insert 140 in the clearance hole 113 to form the concave die;

assembling the movable die 200, and fixing the movable die insert 220 on the movable die 200 to form the male die;

assembling the assembled fixed die 100 and the assembled movable die 200 on an injection molding machine for die assembly, so that the first electrical box cavity 300 is formed between the male die and the female die;

injecting a material into the first electrical box cavity 300, and cooling and solidifying to obtain the electrical box with an integrated box cover;

when an electrical box with a transformer space-avoiding position 13 needs to be manufactured:

the fixed mold insert 140 is disassembled, so that the clearance hole 113 is hollowed out;

assembling the movable die 200, and fixing the movable die insert 220 on the movable die 200 to form the male die;

assembling the assembled fixed die 100 and the assembled movable die 200 on an injection molding machine for die assembly, so that a second electrical box cavity is formed between the male die and the female die;

and injecting a material into the cavity of the second electrical box, and cooling and solidifying to obtain the electrical box with the transformer vacancy-avoiding position 13.

By the method, the electric appliance box with the integrated box cover can be manufactured, the integrated production of the box cover and the electric appliance box main body is realized, the link of manually fixing the box cover on the electric appliance box through screws is reduced, manpower and material resources are saved, and the automatic production is realized. But also can manufacture an electrical box with the transformer vacancy-avoiding position 13, thereby being suitable for different production requirements.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. An electrical box manufacturing mold, comprising:

the fixed die comprises a fixed die main body, a groove is formed in the fixed die main body, the groove forms a concave die, a transformer clearance hole is formed in the groove, and when a fixed die insert is assembled in the groove, the fixed die insert fills the clearance hole; when the fixed mold insert is not assembled in the groove, the transformer clearance hole is hollowed out;

the movable die comprises a movable die main body, a movable die insert is fixedly arranged on one side of the movable die main body, and the movable die insert and the movable die main body form a male die;

when the fixed die insert is fixed in the groove, after the fixed die and the movable die are assembled: a first electrical appliance box cavity is formed between the male die and the female die and comprises a cavity A and a cavity B which are mutually communicated, the cavity A is formed between the fixed die main body and the movable die main body, and the cavity B is formed between the fixed die insert and the movable die insert; and when the fixed die insert is not arranged in the groove, a second electrical appliance box cavity is formed between the male die and the female die.

2. The electrical box manufacturing mold according to claim 1, wherein:

the fixed die further comprises an embedded block, wherein the bottom of the groove is provided with an embedded position, and the embedded block is fixed at the embedded position and matched with the embedded position.

3. The electrical box manufacturing mold according to claim 2, wherein:

the clearance hole penetrates through the groove along the depth direction of the groove; the cover die is characterized in that a connecting groove is formed in the fixed die main body, a first accommodating groove corresponding to the connecting groove is formed in the embedded block, and the first accommodating groove and the connecting groove form a clearance hole.

4. The electrical box manufacturing mold according to claim 3, wherein:

the fixed die insert comprises a first insert and a second insert, and the first insert is fixed in the clearance hole; the insert block is provided with a mounting hole, and the second insert is fixed in the mounting hole.

5. The electrical box manufacturing mold according to claim 4, wherein:

the first insert is provided with a connecting block, and the connecting block is matched with the connecting groove; one side of the first insert, which is far away from the connecting block, is provided with a first boss, the first boss is matched with the first accommodating groove, the first insert is fixed behind the clearance hole, the connecting block is tightly matched with the connecting groove, and the first boss is tightly matched with the first accommodating groove.

6. The electrical box manufacturing mold according to claim 5, wherein:

the two sides of the first insert, which are perpendicular to the first boss, are provided with connecting convex strips protruding outwards, and the first insert is fixed behind the clearance hole, and the connecting convex strips are embedded into the insert blocks.

7. The electrical box manufacturing mold according to claim 4, wherein:

the groove comprises a first groove body and a second groove body, the first groove body is connected with the second groove body, a groove with the cross section in an L shape is formed between the first groove body and the second groove body, and the clearance hole is formed in the second groove body.

8. The electrical box manufacturing mold according to claim 1, wherein:

the movable die is characterized in that the movable die main body is provided with a mounting position, the movable die insert is fixed on the mounting position and forms the male die with the movable die main body, and the shape of the male die corresponds to that of the female die.

9. The electrical box manufacturing mold according to claim 8, wherein:

the mounting position is provided with a second accommodating groove, the movable die insert is provided with a second boss, and the second boss is embedded into the second accommodating groove after the movable die insert is fixed on the movable die main body.

10. The electrical box manufacturing mold according to any one of claims 1 to 9, wherein:

an injection molding opening is formed in the fixed die and communicated with the groove;

the movable mould is provided with a plurality of thimbles, and one ends of the thimbles penetrate through the movable mould and extend into the grooves.

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