CN213350820U

CN213350820U - Novel multi-cavity powder metallurgy forming die

Info

Publication number: CN213350820U
Application number: CN202022011288.6U
Authority: CN
Inventors: 李军; 张炜程; 方勇
Original assignee: Yangzhou Yuneng Precision Machinery Technology Co ltd
Current assignee: Yangzhou Yuneng Precision Machinery Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-04
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a novel one-die multi-cavity powder metallurgy forming die, which comprises an upper fixed plate and a lower fixed plate, wherein the upper fixed plate is arranged above the lower fixed plate, a movable die is arranged at the lower side of the upper fixed plate, the lower end of the movable die is equidistantly provided with a male die, both sides of the male die are provided with grooves, and pressing blocks are arranged in the grooves; the cover half is installed to the upside of bottom plate, the upper end equidistance of cover half seted up with terrace die assorted die, the stand of die both sides be hollow post, the top surface of hollow post sets up the through-hole that the diameter of size and briquetting equals, the position one-to-one of hollow post and briquetting, the inside of hollow post all is equipped with the spring. The pressing block arranged on the movable die in the die closing process extrudes the spring installed in the fixed die, the spring absorbs pressure brought by the pressing block in the descending process, the descending speed of the movable die is slowed down by the buffering effect, powder flying due to the too high speed when the die closing is used for performing press forming on metal powder is prevented, and the forming rate of products is improved.

Description

Novel multi-cavity powder metallurgy forming die

Technical Field

The utility model relates to a powder metallurgy technical field especially relates to a novel a mould multicavity powder metallurgy forming die.

Background

Powder metallurgy is a process technology for manufacturing metal materials, composite materials and various products by using metal powder as a raw material through molding and sintering, and a mold with multiple cavities can be used for molding and sintering during powder metallurgy. The multi-cavity die is used for producing a plurality of workpieces in one pouring cycle by using the die with a plurality of cavities under the conditions of large product batch and small part volume, so that the efficiency is improved.

The existing one-die multi-cavity die has some problems, when the die is used for carrying out compression molding on metal powder, the falling speed of the movable die is too high, so that the powder is easy to fly during the compression, and the molding rate of a product is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a novel a mould multicavity powder metallurgy forming die can cushion when the movable mould descends and slow down its falling speed.

In order to solve the technical problem, the utility model provides a following technical scheme: a novel one-die multi-cavity powder metallurgy forming die comprises an upper fixing plate, a lower fixing plate, a movable die, a fixed die and a lifting mechanism, wherein the upper fixing plate is arranged above the lower fixing plate, the movable die is arranged on the lower side of the upper fixing plate, male dies are arranged at the lower end of the movable die at equal intervals, grooves are formed in two sides of each male die, and pressing blocks are arranged in the grooves; the cover half is installed to the upside of bottom plate, the upper end equidistance of cover half seted up with terrace die assorted die, the stand of die both sides is hollow post, the top surface of hollow post is seted up the through-hole that the diameter of size and briquetting equals, the position one-to-one of hollow post and briquetting, the inside of hollow post all is equipped with the spring.

As a preferred technical scheme of the utility model, elevating system includes hydraulic stem, fixed column, the both ends symmetry of bottom plate is fixed with the fixed column, install the pneumatic cylinder in the fixed column, the output of pneumatic cylinder is connected with the hydraulic stem, one section setting of hydraulic stem is in the fixed column, and the other end extends to the outside of fixed column and links to each other with the upper fixed plate.

As an optimized technical scheme of the utility model, the length of briquetting is greater than the length of recess but is less than the length of spring.

As an optimal technical scheme of the utility model, the surface of briquetting is equipped with one deck wear pad.

As a preferred technical scheme of the utility model, the length of spring is greater than the length of cover half but is less than the length of hollow post.

As an optimized technical scheme of the utility model, distance between movable mould and the cover half is less than the collapsible length of hydraulic stem.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the pressing block arranged on the movable die extrudes the spring arranged in the fixed die in the die closing process, the spring absorbs impact force brought by the falling process of the pressing block, the buffer effect is generated, the falling speed of the movable die is reduced, powder flying due to too high speed in the process of die closing for press forming of metal powder is prevented, and the forming rate of products is improved;

2. the hydraulic cylinder drives the hydraulic rod to contract, the hydraulic rod drives the movable die to descend and attach to the fixed die to complete die assembly, and the automatic die assembly process can be realized without manual operation; after the work is finished, the hydraulic cylinder is started again to drive the hydraulic rod to stretch, so that the demolding can be finished, the process is simple, the time is saved rapidly, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention during demolding;

FIG. 2 is a schematic structural view of the mold closing of the present invention;

FIG. 3 is an enlarged view of the point A of the present invention;

FIG. 4 is a front view of the present invention when the mold is closed;

wherein: 1. an upper fixing plate; 2. a hydraulic lever; 3. fixing a column; 4. a lower fixing plate; 5. moving the mold; 6. briquetting; 7. a hollow column; 8. a spring; 9. fixing a mold; 10. and (4) a groove.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1 and 2, the utility model provides a novel one-die multi-cavity powder metallurgy forming die, which comprises an upper fixing plate 1, a lower fixing plate 4, a movable die 5, a fixed die 9 and a lifting mechanism, wherein the upper fixing plate 1 is arranged above the lower fixing plate 4, the movable die 5 is arranged at the lower side of the upper fixing plate 1, the male die is arranged at the lower end of the movable die 5 at equal intervals, grooves 10 are respectively arranged at two sides of the male die, and a pressing block 6 is arranged in each groove 10; a fixed die 9 is mounted on the upper side of the lower fixed plate 4, female dies matched with the male dies are equidistantly arranged at the upper end of the fixed die 9, hollow columns 7 are arranged on the two sides of the female dies, through holes with the size equal to the diameter of the pressing blocks 6 are formed in the top end surfaces of the hollow columns 7, the hollow columns 7 correspond to the pressing blocks 6 in position one by one, and springs 8 are arranged inside the hollow columns 7;

the device during operation, movable mould 5 descends and is close to cover half 9 gradually, and at this in-process, briquetting 6 passes through the through-hole contact spring 8 that hollow post 7 upper surface was seted up and compresses spring 8, and after compressing a section distance, spring 8 has absorbed the impact force that briquetting 6 brought and has produced the effect of buffering, has slowed down movable mould 5's falling speed, and after terrace die and the complete joint of die, briquetting 6 is accomplished spring 8's compression, begins to carry out the briquetting to metal powder. The pressing block 6 arranged on the movable die 5 extrudes the spring 8 arranged in the fixed die 9 in the die closing process, the spring 8 absorbs the impact force caused in the descending process of the pressing block 6, the descending speed of the movable die 5 is slowed down by the buffering effect, the powder flying due to the over-high speed when the die is closed to perform press forming on the metal powder is prevented, and the forming rate of the product is improved.

In another embodiment, as shown in fig. 1, the embodiment discloses that the lifting mechanism includes a hydraulic rod 2 and fixed columns 3, the fixed columns 3 are symmetrically fixed at two ends of the lower fixed plate 4, a hydraulic cylinder is installed in the fixed columns 3, an output end of the hydraulic cylinder is connected with the hydraulic rod 2, one section of the hydraulic rod 2 is arranged in the fixed columns 3, and the other end of the hydraulic rod 2 extends to the outside of the fixed columns 3 and is connected with the upper fixed plate 1;

when the device works, the hydraulic cylinder is started, the hydraulic cylinder drives the hydraulic rod 2 to contract, the hydraulic rod 2 drives the upper fixing plate 1, the movable mold 5 gradually descends along with the contraction of the hydraulic rod 2 to be attached to the fixed mold 9 to complete mold assembly, and the hydraulic cylinder is immediately closed; after the work is finished, the hydraulic cylinder is started again to enable the hydraulic cylinder to stretch, and then the demolding can be achieved. The hydraulic cylinder drives the hydraulic rod 2 to contract, the hydraulic rod 2 drives the movable die 5 to descend to be attached to the fixed die 9 to complete die assembly, and the automatic die assembly process can be realized without manual operation; after the work is finished, the hydraulic cylinder is started again to drive the hydraulic rod 2 to stretch, so that the demolding can be finished, the process is simple, the time is saved rapidly, and the working efficiency is improved.

In another embodiment, as shown in fig. 1 and 3, the embodiment discloses that the length of the pressing block 6 is greater than the length of the groove 10 but less than the length of the spring 8;

when the device works, in the process that the movable die 5 is attached to the fixed die 9, the pressing block 6 extrudes the spring 8, and the process that the pressing block 6 extrudes the spring 8 can be realized only when the length of the pressing block 6 is greater than that of the groove 10 but smaller than that of the spring 8.

In another embodiment, as shown in fig. 1, this embodiment discloses that the outer surface of the compact 6 is provided with a layer of wear-resistant sheet; when the device works, the pressing block 6 extrudes the spring 8, and the friction between the pressing block 6 and the spring 8 can be reduced by the wear-resistant sheet arranged on the outer surface of the pressing block 6, so that the service lives of the pressing block 6 and the spring 8 are prolonged.

In another embodiment, as shown in fig. 1 and 2, the present embodiment discloses a length relationship that the length of the spring 8 is greater than that of the fixed mold 9 but less than that of the hollow column 7; when the device works, the movable die 5 is attached to the fixed die 9 to realize die assembly, and the descending speed of the movable die 5 can be slowed down before the die assembly only by the length of the spring 8 being larger than that of the fixed die 9.

In another embodiment, as shown in fig. 1 and 4, the embodiment discloses a length relationship that the distance between the movable mold 5 and the fixed mold 9 is smaller than the length of the hydraulic rod 2 which can be contracted;

the device during operation starts the pneumatic cylinder, and 2 shrink of hydraulic stem, movable mould 5 are close to and laminate to cover half 9 gradually, and the distance between movable mould 5 and the cover half 9 is less than 2 telescopic lengths of hydraulic stem and prevents that the mould from not having compound die hydraulic stem 2 just can not stretch out and draw back yet.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel multi-chamber powder metallurgy forming die of a mould, includes upper fixed plate (1), bottom plate (4), movable mould (5), cover half (9) and elevating system, its characterized in that: the upper fixing plate (1) is arranged above the lower fixing plate (4), a movable die (5) is arranged on the lower side of the upper fixing plate (1), male dies are arranged at the lower end of the movable die (5) at equal intervals, grooves (10) are formed in two sides of each male die, and pressing blocks (6) are arranged in the grooves (10); cover half (9) are installed to the upside of bottom plate (4), the upper end equidistance of cover half (9) seted up with terrace die assorted die, the stand of die both sides is hollow post (7), the through-hole that the diameter of size and briquetting (6) equals is seted up on the top surface of hollow post (7), the position one-to-one of hollow post (7) and briquetting (6), the inside of hollow post (7) all is equipped with spring (8).

2. The novel one-mold multi-cavity powder metallurgy forming mold as claimed in claim 1, wherein: the lifting mechanism comprises a hydraulic rod (2) and fixing columns (3), the fixing columns (3) are symmetrically fixed at two ends of the lower fixing plate (4), a hydraulic cylinder is installed in the fixing columns (3), the output end of the hydraulic cylinder is connected with the hydraulic rod (2), one section of the hydraulic rod (2) is arranged in the fixing columns (3), and the other end of the hydraulic rod extends to the outside of the fixing columns (3) and is connected with the upper fixing plate (1).

3. The novel one-mold multi-cavity powder metallurgy forming mold as claimed in claim 1, wherein: the length of the pressing block (6) is greater than that of the groove (10) but less than that of the spring (8).

4. The novel one-mold multi-cavity powder metallurgy forming mold as claimed in claim 1, wherein: the outer surface of the pressing block (6) is provided with a layer of wear-resistant sheet.

5. The novel one-mold multi-cavity powder metallurgy forming mold as claimed in claim 1, wherein: the length of the spring (8) is greater than that of the fixed die (9) but less than that of the hollow column (7).

6. The novel one-mold multi-cavity powder metallurgy forming mold as claimed in claim 2, wherein: the distance between the movable die (5) and the fixed die (9) is smaller than the length of the hydraulic rod (2) which can be contracted.