CN219253876U

CN219253876U - Front cover closing-in forming die

Info

Publication number: CN219253876U
Application number: CN202320162077.3U
Authority: CN
Inventors: 邝沃光
Original assignee: Kaiping Hp Sanitary Ware Industrial Co ltd
Current assignee: Kaiping Hp Sanitary Ware Industrial Co ltd
Priority date: 2023-01-19
Filing date: 2023-01-19
Publication date: 2023-06-27
Anticipated expiration: 2033-01-19

Abstract

The utility model discloses a front cover closing-in forming die which comprises a lower die, a first upper die, a second upper die and a third upper die, wherein the lower die is provided with a forming cavity with an upward opening; the first upper die is provided with a stamping block, and the outer diameter of the stamping block is smaller than the inner diameter of the forming cavity; the second upper die is provided with a first positioning cavity and a first positioning block, the first positioning cavity is arranged around the first positioning block, the opening of the first positioning cavity faces downwards, the inner wall of the first positioning cavity is provided with a guide part, and the inner diameter of the guide part increases downwards; the third upper die is provided with a second shaping cavity and a second positioning block, the second shaping cavity is arranged around the second positioning block, the opening of the second shaping cavity faces downwards, and the inner wall of the opening of the second shaping cavity is provided with a first step part; the first upper die, the second upper die and the third upper die may be sequentially matched with the lower die. The front cover closing-in forming die does not need to transfer and position the front cover for multiple times, reduces labor intensity, improves production efficiency and reduces die development cost.

Description

Front cover closing-in forming die

Technical Field

The utility model relates to the technical field of dies, in particular to a front cover closing-in forming die.

Background

The side of gondola water faucet protecgulum has the multistage to bend out and have the radian, in the correlation technique, process every department of bending respectively through many sets of moulds, every set of mould all includes mould and lower mould, need in the course of working shift the protecgulum to the mould of next station from one set of mould, and all need to fix a position the protecgulum with the mould with putting into the mould at every turn, complex operation influences production efficiency, and need develop many sets of moulds, with high costs.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the front cover closing-in forming die provided by the utility model does not need to transfer and position the front cover for multiple times, reduces labor intensity, improves production efficiency and reduces die development cost.

According to an embodiment of the utility model, a front cover closing-in forming die comprises: the lower die is provided with a forming cavity with an upward opening; the first upper die is provided with a stamping block, the stamping block is overlapped with the central line of the forming cavity, and the outer diameter of the stamping block is smaller than the inner diameter of the forming cavity; the second upper die is provided with a first positioning cavity and a first positioning block, the first positioning cavity is arranged around the first positioning block, the opening of the first positioning cavity faces downwards, the inner wall of the first positioning cavity is provided with a guide part, and the inner diameter of the guide part increases downwards; the third upper die is provided with a second shaping cavity and a second positioning block, the second shaping cavity is arranged around the second positioning block, the opening of the second shaping cavity faces downwards, and the inner wall of the opening of the second shaping cavity is provided with a first step part; the first upper die, the second upper die and the third upper die can be matched with the lower die in sequence.

The technical scheme at least has the following beneficial effects: by arranging three upper dies to be matched with one lower die in sequence, the development quantity of the dies can be reduced, and the cost of the dies can be reduced; the first upper die and the lower die are matched to bend the front cover for the first time, so that the front cover forms a side plate, the second upper die and the lower die are matched to bend the side plate in advance, the third upper die and the lower die are matched to further bend the side plate for forming, so that the required front cover is obtained, the step forming is carried out, the forming effect is good, meanwhile, the front cover is always positioned in the lower die in the production process, the front cover is not required to be transferred and positioned for many times, the operation is simple, the processing precision is improved, the labor intensity is reduced, and the production efficiency is improved.

According to some embodiments of the utility model, a first round corner is arranged at the joint of the inner wall and the bottom wall of the forming cavity, and the stamping block is provided with a second round corner matched with the first round corner.

According to some embodiments of the utility model, the guiding part is configured as an inclined plane, and an included angle between the inclined plane and a horizontal plane is θ, so that: θ is more than or equal to 40 degrees and less than or equal to 60 degrees.

According to some embodiments of the utility model, the lower die is provided with a second step portion provided around the outer periphery of the molding cavity, and the lower end surface of the third upper die can abut against the second step portion.

According to some embodiments of the utility model, a third step part is arranged on the inner wall of the opening of the first cavity, and the third step part can be abutted against the second step part.

According to some embodiments of the utility model, the lower die is provided with a guide post, the guide post extends upwards, and the first upper die, the second upper die and the third upper die are provided with guide holes matched with the guide post.

According to some embodiments of the utility model, the guide post is provided with a guide portion at an upper end, and an outer diameter of the guide portion decreases upwards.

According to some embodiments of the utility model, the first upper die, the second upper die and the third upper die are all provided with a demolding rod, the demolding rod is arranged in a sliding manner along a vertical direction, and the demolding rod can extend out of the lower end face of the first upper die, the second upper die or the third upper die and press against a front cover.

According to some embodiments of the utility model, the lower end of the stripper rod is provided with a buffer block.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a cross-sectional view of a lower die mated with a first upper die in an embodiment of the utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a cross-sectional view showing the cooperation of a lower die and a second upper die in an embodiment of the present utility model;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is a cross-sectional view showing the cooperation of the lower mold and the third upper mold in the embodiment of the present utility model;

fig. 6 is an enlarged view of C in fig. 5.

Reference numerals:

a lower die 100; a molding cavity 110; a first rounded corner 111; a second step 120; a guide post 130; a guide portion 131;

a first upper die 200; stamping block 210; a second rounded corner 211; a guide hole 220; a stripper bar 230; a buffer block 231;

a second upper die 300; a first cavity 310; a guide portion 311; a third step 312; a first positioning block 320;

a third upper die 400; a second stationary cavity 410; a first step 411; a second positioning block 420;

a front cover 500; a bottom plate 510; a side plate 520; an inclined portion 521; a vertical portion 522; a horizontal portion 523.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 6, an embodiment of the present utility model provides a front cover closing-in molding die including a lower die 100, a first upper die 200, a second upper die 300, and a third upper die 400.

Referring to fig. 1, 3 and 5, it can be appreciated that the first upper mold 200, the second upper mold 300 and the third upper mold 400 are all disposed above the lower mold 100, the first upper mold 200, the second upper mold 300 and the third upper mold 400 can be mounted on a slide block, and the first upper mold 200, the second upper mold 300 and the third upper mold 400 can be respectively disposed directly above the lower mold 100 by driving the slide block to move and sequentially cooperate with the lower mold 100 to realize the production of the front cover 500.

Referring to fig. 1 and 2, it can be understood that the lower mold 100 is provided with a molding cavity 110 having an upward opening, the cross section of the molding cavity 110 is circular, and the bottom wall of the molding cavity 110 has a planar structure. The lower end of the first upper die 200 is provided with a punching block 210, the cross section of the punching block 210 is circular, the central line of the punching block 210 coincides with the forming cavity 110, the outer inlet of the punching block 210 is smaller than the inner diameter of the forming cavity 110, and the difference between the radius of the forming cavity 110 and the radius of the punching block 210 is matched with the thickness of the front cover 500. In production, the flat plate is placed at the opening of the molding cavity 110, the first upper mold 200 moves downward toward the lower mold 100, and the flat plate is pressed into the molding cavity 110, so that the flat plate forms a bottom plate 510 and a side plate 520, and the side plate 520 extends upward and is connected to the periphery of the bottom plate 510, i.e., the embryonic form of the front cover 500 is formed.

Referring to fig. 3 and 4, it can be understood that the lower end of the second upper mold 300 is provided with a first cavity 310 and a first positioning block 320, the opening of the first cavity 310 is downward, the cross sections of the first cavity 310 and the first positioning block 320 are all circular, and the first cavity 310 is arranged around the circumference of the first positioning block 320, the center line of the first cavity 310 coincides with the center line of the first positioning block 320, the inner wall of the lower end of the first cavity 310 is provided with a guide part 311, the inner diameter of the guide part 311 increases downward, the guide part 311 is provided as a slope structure, and the difference between the radius of the upper end of the first cavity 310 and the radius of the first positioning block 320 matches the thickness of the side plate 520. During production, the second upper die 300 moves downwards towards the lower die 100, the guide part 311 guides the upper end of the side plate 520 to the upper end of the first fixed cavity 310, so that the upper end of the side plate 520 is offset, and as the second upper die 300 moves downwards further, the guide part 311 drives the side plate 520 to bend, so that the lower end of the side plate 520 forms an inclined part 521, and the upper end is a vertical part 522, at this time, the first positioning block 320 is pressed against the bottom plate 510, so that the bottom plate 510 is kept flat, and the side plate 520 is pre-bent.

Referring to fig. 5 and 6, it can be understood that the lower end of the third upper mold 400 is provided with a second fixed cavity 410 and a second positioning block 420, the cross sections of the second fixed cavity 410 and the second positioning block 420 are all circular, the opening of the second fixed cavity 410 is downward, the second fixed cavity 410 is circumferentially arranged around the second positioning block 420, the center line of the second fixed cavity 410 coincides with the center line of the second positioning block 420, the inner wall of the lower end (i.e., the opening) of the second fixed cavity 410 is provided with a first step 411, the difference between the radius of the upper end of the second fixed cavity 410 and the radius of the second positioning block 420 matches the thickness of the side plate 520, during production, the third upper mold 400 moves downward toward the lower mold 100, the vertical part 522 of the side plate 520 is accommodated in the upper end of the second fixed cavity 410, and as the third upper mold 400 moves downward further, the inclined part 521 of the side plate 520 is driven by the first step 521 to be further bent until the inclined part 521 is parallel to the bottom plate 510, i.e., the horizontal part 523 is formed, the second positioning block 420 is pressed against the bottom plate 510, and the difference between the radius of the upper end of the second fixed cavity 410 and the radius of the second positioning block 420 matches the thickness of the side plate 510, thus the required flat front cover 500 is obtained.

By arranging three upper dies to be matched with one lower die 100 in sequence, the development quantity of the dies can be reduced, and the cost of the dies can be reduced; wherein, first upper die 200 and lower mould 100 cooperation are bent for the first time to protecgulum 500, make protecgulum 500 form curb plate 520, second upper die 300 and lower mould 100 cooperation are bent in advance to curb plate 520, third upper die 400 and lower mould 100 cooperation are further bending shaping to curb plate 520, thereby obtain required protecgulum 500, step shaping, the shaping is effectual, simultaneously, in the production process, protecgulum 500 is positioned in lower mould 100 all the time, need not to transfer and fix a position protecgulum 500 many times, easy operation is favorable to improving machining precision, and reduce intensity of labour, improve production efficiency.

Referring to fig. 1 and 2, it can be understood that a first rounded corner 111 is provided at a connection portion between an inner wall and a bottom wall of the forming cavity 110, and correspondingly, a second rounded corner 211 matched with the first rounded corner 111 is provided at a lower end of the punching block 210, and generally, a difference between a radius of the first rounded corner 111 and a radius of the second rounded corner 211 matches a thickness of the bottom plate 510. Therefore, the connection part of the bottom plate 510 and the side plate 520 can form a round angle, so that the smooth transition is realized, on one hand, the appearance is attractive, and on the other hand, the bending forming is easy, and the forming effect is good.

Referring to fig. 4, it can be understood that the inclined plane of the guiding portion 311 has an angle θ with respect to the horizontal plane, which satisfies the following conditions: θ is more than or equal to 40 degrees and less than or equal to 60 degrees. For example, θ=40°, θ=50°, θ=60°, or the like, specifically θ=45°, on the one hand, the upper end of the side plate 520 can be smoothly guided to the upper end of the first cavity 310, and on the other hand, the inclined portion 521 is disposed at an angle of 45 ° with respect to the bottom plate 510, so that the inclined portion 521 can be further bent and molded.

Referring to fig. 5, it can be understood that the lower die 100 is provided with a second stepped portion 120, the second stepped portion 120 is disposed around the outer circumference of the cavity 110, and the second stepped portion 120 is located lower than the upper end of the molding cavity 110. When the third upper die 400 and the lower die 100 are matched for processing and forming is completed, the lower end surface of the third upper die 400 abuts against the second step portion 120, so that the third upper die 400 is limited to move further downwards, the front cover 500 is prevented from being crushed, and reliability is improved.

Referring to fig. 3 and 4, it can be understood that the inner wall of the opening (i.e., the lower end) of the first cavity 310 is provided with a third step portion 312, and when the second upper mold 300 is matched with the lower mold 100 for processing and forming is completed, the third step portion 312 abuts against the second step portion 120, thereby restricting the second upper mold 300 from further moving downward, avoiding crushing the front cover 500, and improving reliability.

Referring to fig. 1, 3 and 5, it can be understood that the upper end of the lower mold 100 is provided with a plurality of guide posts 130 spaced apart, the guide posts 130 extend upward, and the first, second and third

upper molds

200, 300 and 400 are each provided with a plurality of guide holes 220 engaged with the guide posts 130. Therefore, under the cooperation of the guide post 130 and the guide hole 220, the first upper die 200, the second upper die 300 and the third upper die 400 can be precisely moved downward to be accurately matched with the lower die 100, so that offset is prevented, and the improvement of processing precision is facilitated.

Referring to fig. 1, it can be understood that the guide portion 131 is provided at the upper end of the guide post 130, and the guide portion 131 may have a truncated cone structure or a tip portion, i.e. the outer diameter of the guide portion 131 decreases upwards, so that the difficulty of inserting the guide post 130 into the guide hole 220 is reduced, and the guide post 130 is easily inserted into the guide hole 220, thereby realizing guiding and improving reliability.

Referring to fig. 1, 3 and 5, it can be appreciated that the first upper die 200, the second upper die 300 and the third upper die 400 are each provided with a plurality of stripper bars 230 arranged at intervals. Taking the first upper die 200 as an example, the demolding rod 230 is vertically arranged and slidably mounted on the stamping block 210 of the first upper die 200 in the vertical direction, and the demolding rod 230 can extend out of the lower end surface of the stamping block 210. When the molding is completed, the first upper die 200 moves upward with respect to the lower die 100, and at the same time, the stripper bar 230 moves downward with respect to the first upper die 200, and the lower end of the stripper bar 230 abuts against the front cover 500, thereby enabling the punch block 210 to be separated from the front cover 500 for stripping. Similarly, in the second upper mold 300, the first positioning block 320 is separated from the front cover 500, and in the third upper mold 400, the second positioning block 420 is separated from the front cover 500.

Referring to fig. 1, it can be appreciated that the lower end of the knock out bar 230 is provided with a buffer block 231, and the buffer block 231 may be a rubber member, so that the knock out bar 230 is prevented from crushing the front cover 500.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. Closing-in forming die of protecgulum, its characterized in that includes:

the lower die is provided with a forming cavity with an upward opening;

the first upper die is provided with a stamping block, the stamping block is overlapped with the central line of the forming cavity, and the outer diameter of the stamping block is smaller than the inner diameter of the forming cavity;

the second upper die is provided with a first positioning cavity and a first positioning block, the first positioning cavity is arranged around the first positioning block, the opening of the first positioning cavity faces downwards, the inner wall of the first positioning cavity is provided with a guide part, and the inner diameter of the guide part increases downwards;

the third upper die is provided with a second shaping cavity and a second positioning block, the second shaping cavity is arranged around the second positioning block, the opening of the second shaping cavity faces downwards, and the inner wall of the opening of the second shaping cavity is provided with a first step part;

the first upper die, the second upper die and the third upper die can be matched with the lower die in sequence.

2. The front cover closing-in molding die according to claim 1, wherein: the junction of the inner wall and the bottom wall of the molding cavity is provided with a first fillet, and the stamping block is provided with a second fillet matched with the first fillet.

3. The front cover closing-in molding die according to claim 1, wherein: the guide part is set to the inclined plane, the contained angle of inclined plane and horizontal plane is θ, satisfies: θ is more than or equal to 40 degrees and less than or equal to 60 degrees.

4. A front cover closing-in molding die according to claim 3, wherein: the lower die is provided with a second step part, the second step part is arranged around the periphery of the forming cavity, and the lower end face of the third upper die can be abutted against the second step part.

5. The front cover closing-in molding die according to claim 4, wherein: the inner wall of the opening part of the first fixed cavity is provided with a third step part, and the third step part can be abutted to the second step part.

6. The front cover closing-in molding die according to claim 1, wherein: the lower die is provided with a guide pillar, the guide pillar extends upwards, and the first upper die, the second upper die and the third upper die are all provided with guide holes matched with the guide pillar.

7. The front cover closing-in molding die according to claim 6, wherein: the upper end of the guide post is provided with a guide part, and the outer diameter of the guide part decreases upwards.

8. The front cover closing-in molding die according to claim 1, 6 or 7, characterized in that: the first upper die, the second upper die and the third upper die are respectively provided with a demolding rod, the demolding rods are arranged in a sliding mode along the vertical direction, and the demolding rods can extend out of the lower end faces of the first upper die, the second upper die or the third upper die and abut against the front cover.

9. The front cover closing-in molding die according to claim 8, wherein: and a buffer block is arranged at the lower end of the demoulding rod.