Powder forming device

Abstract

The present invention relates to a powder forming device. The present invention comprises a bottom plate, a powder pressing mechanism, a lifting mechanism and an arm, the powder pressing mechanism comprises a female mold and a male mold, the female mold is provided with a cylindrical cavity, the male mold matches with the cylindrical cavity on the female mold, and the male mold is composed of a plurality of male mold modules with equal or unequal heights; in order to facilitate the formation of a male mold module assembly, magnetic materials are provided on the end faces of one or both ends of the male mold modules, and when two male mold modules are combined with each other, the two male mold modules are closely attached to each other through magnetism; the powder pressing mechanism is connected to the lifting mechanism through an arm, wherein the arm is fixed to the lifting slider, one end of the arm is fixed to the piston rod, and the other end of the arm is fixed to the female mold; the present invention has the characteristics of simple centering between the female mold and the male mold, convenient operation and high working efficiency.

Description

Technical Field

[0001] The invention relates to the field of powder metallurgy stamping forming equipment, and in particular to a powder forming device. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. Before sintering, the powder needs to be loaded into the workpiece mold of the powder forming device and formed by stamping, and pressure is applied to the positive mold during the stamping operation.

[0003] Since the gap between the female mold and the male mold in the powder molding device is very small, when the female mold and the male mold are not well aligned, the male mold will interfere with the female mold when it moves downward, so the alignment between the female mold and the male mold is very important.

[0004] The existing powder molding devices have the disadvantages of difficult alignment between the female mold and the male mold, complicated operation and low working efficiency. However, to date, a satisfactory powder molding device with simple alignment between the female mold and the male mold, convenient operation and high working efficiency has not been found. Summary of the invention

[0005] The purpose of the present invention is to provide a powder forming device which has the advantages of simple centering between a female mold and a male mold, convenient operation and high working efficiency.

[0006] The technical solution adopted for the purpose of the present invention is achieved in the following way: a powder molding device, which includes a powder pressing mechanism and a lifting mechanism, the powder pressing mechanism includes a female mold and a male mold, the female mold is provided with a cylindrical cavity, the male mold cooperates with the cylindrical cavity on the female mold, the male mold is composed of a plurality of male mold modules with equal or unequal heights, the combination of the male mold modules is determined according to the required length of the powder ingot, when the required length of the powder ingot is longer, the corresponding height of the male mold module assembly is shorter, conversely, when the required length of the powder ingot is shorter, the corresponding height of the male mold module assembly is longer.

[0007] Furthermore, the male mold is composed of a male mold module 1, a male mold module 2 and a male mold module 3, and the heights of the male mold module 1, the male mold module 2 and the male mold module 3 are not equal to each other;

[0008] Furthermore, magnetic materials are provided on the end surfaces of one or both ends of the male mold module 1, male mold module 2 and male mold module 3, and when the two male mold modules are combined with each other, the two male mold modules are closely attached to each other through magnetism;

[0009] Furthermore, the demoulding angle of the cavity on the female mold is 1° to 1.5°;

[0010] Furthermore, the powder pressing mechanism further includes a female mold base, a blocking block, a female mold guide ring, a blocking block bracket, a blocking block support plate, a limiting support block 1, a limiting support block 2, and a limiting support block 3, wherein:

[0011] The female mold base includes a female mold support seat and a flange plate. The female mold support seat is cylindrical, and the top of the female mold support seat is tray-shaped. A discharge port 1 is provided on the side surface of the top of the female mold support seat, and the bottom of the female mold support seat is fixed on the flange plate; the blocking block is provided at the cavity opening at the bottom of the female mold;

[0012] A guide groove 1 is provided on the top of the limit support block 1, a guide groove 2 is provided on the top of the limit support block 2, the limit support block 1, the limit support block 2 and the limit support block 3 are respectively fixed on the edges of the bottom of the tray-shaped plate at the top of the female mold support seat, wherein the limit support block 1 and the limit support block 2 are respectively fixed on the left and right sides of the discharge port 1 at the top of the female mold support seat, the limit support block 3 is fixed at a position between the limit support block 1 and the limit support block 2, and a straight rod hole is formed between the limit support block 1, the limit support block 2 and the limit support block 3;

[0013] The blocking bracket comprises a straight rod 1, a straight rod 2 and a handle 1, wherein the straight rod 1 and the straight rod 2 are fixed on the handle 1;

[0014] The block support plate includes a pressure plate, a baffle and a second handle, wherein the pressure plate is a flat plate structure, the baffle is an arc-shaped plate structure, the pressure plate is fixed on the concave surface of the baffle, and the second handle is fixed on the convex surface of the baffle;

[0015] The bottom surface of the female mold guide ring is provided with a socket 1 and a socket 2, the side surface of the female mold guide ring is provided with a discharge port 2, and the female mold guide ring is fixed to the top of the female mold support seat, wherein the discharge port 2 on the female mold guide ring matches with the discharge port 1 on the female mold support seat, the socket 1 on the female mold guide ring matches with the guide groove 1 on the limiting support block 1 and the guide groove 2 on the limiting support block 2, and the socket 2 on the female mold guide ring matches with the straight rod hole formed between the limiting support block 1, the limiting support block 2 and the limiting support block 3;

[0016] The straight rod 1 and the straight rod 2 on the blocking bracket are respectively inserted into the insertion hole 1 and the insertion hole 2 on the female mold guide ring;

[0017] The pressure plate on the blocking block support plate is inserted into the discharge port composed of the discharge port 1 on the female mold support seat and the discharge port 2 on the female mold guide ring, and the baffle on the blocking block support plate blocks the discharge port composed of the discharge port 1 on the female mold support seat and the discharge port 2 on the female mold guide ring.

[0018] Furthermore, the female mold includes a female mold upper part, a female mold lower part and a female mold bottom. The outer diameter of the female mold upper part is smaller than the outer diameter of the female mold lower part, the outer diameter of the female mold lower part is smaller than the outer diameter of the female mold bottom, and the female mold bottom of the female mold cooperates with the female mold guide ring.

[0019] In the powder forming device, the lifting mechanism includes a pneumatic drive device, a lifting mechanism fixing plate, a guide column, a guide column fixing seat and a lifting slider, the pneumatic drive device includes a cylinder and a piston rod, the guide column is fixed on the guide column fixing seat, and the cylinder and the guide column fixing seat are fixed on the bottom plate; the lifting slider is matched with the guide column through the guide column hole on the lifting slider, and the lifting slider can slide up and down on the guide column; the powder pressing mechanism is connected to the lifting mechanism through an arm rod, wherein the arm rod is fixed to the lifting slider, one end of the arm rod is fixed to the piston rod, and the other end of the arm rod is fixed to the female mold;

[0020] Furthermore, one end of the arm rod is provided with a hole matching the piston rod, and one end of the arm rod is fixedly connected to the piston rod through a fixing nut and the hole on the arm rod; the other end of the arm rod is provided with a connecting hole, and the other end of the arm rod is fixed to the female mold in the following manner: first, the connecting hole on the other end of the arm rod is put on the female mold upper part of the female mold, and then the other end of the arm rod is fixedly connected to the female mold through a female mold fixing ring.

[0021] The powder forming device of the present invention provides a powder forming device for a powder forming process, which has the advantages of simple centering between a female mold and a male mold, convenient operation and high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a powder forming device of the present invention.

[0023] Figure 2 This is a structural exploded view of a powder forming device of the present invention.

[0024] Figure 3 This is a structural breakdown diagram of the powder pressing mechanism.

[0025] In the attached Figure 1 To Attachment Figure 3Among them, 1 indicates a bottom plate; 2 indicates a powder pressing mechanism; 2a indicates a female mold; 2a1 indicates an upper part of the female mold; 2a2 indicates a lower part of the female mold; 2a3 indicates a bottom part of the female mold; 2a4 indicates a cavity; 2b indicates a male mold; 2b1 indicates a male mold module 1; 2b2 indicates a male mold module 2; 2b3 indicates a male mold module 3; 2c indicates a female mold base; 2c1 indicates a female mold support seat; 2c11 indicates a discharge port 1; 2c2 indicates a flange; 2d indicates a female mold fixing ring; 2e indicates a blocking block; 2f indicates a female mold guide ring; 2f1 indicates a socket 1; 2f2 indicates a socket 2; 2f3 indicates a discharge port 2; 2g indicates a blocking block bracket; 2g1 indicates straight rod one; 2g2 indicates straight rod two; 2g3 indicates handle one; 2h indicates blocking block support plate; 2h1 indicates pressure plate; 2h2 indicates baffle plate; 2h3 indicates handle two; 2i indicates limit support block one; 2i1 indicates guide groove one; 2j indicates limit support block two; 2j1 indicates guide groove two; 2k indicates limit support block three; 3 indicates lifting mechanism; 3a indicates cylinder; 3b indicates piston rod; 3c indicates lifting mechanism fixing plate; 3d indicates guide column; 3e indicates guide column fixing seat; 3f indicates lifting slide block; 3f1 indicates guide column hole; 3g indicates fixing nut; 4 indicates arm rod; 4a indicates hole. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail with reference to the embodiments given in the accompanying drawings:

[0027] See attached Figure 1 To Attachment Figure 3A powder forming device comprises a base plate 1, a powder pressing mechanism 2, a lifting mechanism 3 and an arm 4, wherein the powder pressing mechanism 2 comprises a female mold 2a and a male mold 2b, wherein the female mold 2a comprises a female mold upper part 2a1, a female mold lower part 2a2 and a female mold bottom 2a3, wherein the outer diameter of the female mold upper part 2a1 is smaller than the outer diameter of the female mold lower part 2a2, and the outer diameter of the female mold lower part 2a2 is smaller than the outer diameter of the female mold bottom 2a3, and the female mold 2a is provided with a cylindrical mold cavity 2a4, and in order to facilitate demoulding, the demoulding slope of the mold cavity 2a4 on the female mold 2a is 1° to 1.5°; the male mold 2b cooperates with the cylindrical mold cavity 2a4 on the female mold 2a, and the male mold 2b is composed of a male mold module 1 2b1, a male mold module 2b2 and a male mold module 3 2b3, wherein the male mold module 1 2b1, the male mold module 2b2 and The heights of the three male mold modules 2b3 are not equal to each other; the combination of the three male mold modules is determined according to the length of the required powder ingot. When the required length of the powder ingot is longer, the height of the corresponding male mold module assembly is shorter. Conversely, when the required length of the powder ingot is shorter, the height of the corresponding male mold module assembly is longer; in order to facilitate the formation of the male mold module assembly, the male mold module 1 2b1, the male mold module 2b2 and the male mold module 3 2b3 are provided with magnetic materials on their respective end faces at one or both ends. When the two male mold modules are combined with each other, the two male mold modules are tightly attached to each other through magnetism; the powder pressing mechanism 2 also includes a female mold base 2c, a blocking block 2e, a female mold guide ring 2f, a blocking block bracket 2g, a blocking block support plate 2h, a limit support block 1 2i, a limit support block 2j, and a limit support block 3 2k, wherein:

[0028] The female mold base 2c includes a female mold support seat 2c1 and a flange 2c2. The female mold support seat 2c1 is cylindrical, and the top of the female mold support seat 2c1 is tray-shaped. A discharge port 2c11 is provided on the top side of the female mold support seat 2c1. The bottom of the female mold support seat 2c1 is fixed on the flange 2c2. The blocking block 2e is provided at the opening of the cavity 2a4 at the bottom of the female mold 2a.

[0029] A guide groove 1 2i1 is provided on the top of the limit support block 2i, and a guide groove 2j1 is provided on the top of the limit support block 2j. The limit support block 1 2i, the limit support block 2j and the limit support block 3 2k are respectively fixed on the edges of the bottom of the tray-shaped plate at the top of the female mold support seat 2c1, wherein the limit support block 1 2i and the limit support block 2j are respectively fixed on the left and right sides of the discharge port 1 2c11 at the top of the female mold support seat 2c1, and the limit support block 3 2k is fixed at a position between the limit support block 1 2i and the limit support block 2j, and a straight rod hole is formed between the limit support block 1 2i, the limit support block 2j and the limit support block 3 2k;

[0030] The blocking bracket 2g includes a straight rod 1 2g1, a straight rod 2g2 and a handle 1 2g3, and the straight rod 1 2g1 and the straight rod 2g2 are fixed on the handle 1 2g3;

[0031] The block support plate 2h includes a pressure plate 2h1, a baffle plate 2h2 and a second handle 2h3. The pressure plate 2h1 is a flat plate structure, the baffle plate 2h2 is an arc plate structure, the pressure plate 2h1 is fixed on the concave surface of the baffle plate 2h2, and the second handle 2h3 is fixed on the convex surface of the baffle plate 2h2;

[0032] The female mold guide ring 2f cooperates with the female mold bottom 2a3 of the female mold 2a, and the bottom surface of the female mold guide ring 2f is provided with a socket 1 2f1 and a socket 2f2, and the side of the female mold guide ring 2f is provided with a discharge port 2f3, and the female mold guide ring 2f is fixed to the top of the female mold support seat 2c1, wherein the discharge port 2f3 on the female mold guide ring 2f cooperates with the discharge port 1 2c11 on the female mold support seat 2c1, the socket 1 2f1 on the female mold guide ring 2f cooperates with the guide groove 1 2i1 on the limiting support block 1 2i and the guide groove 2j1 on the limiting support block 2j, and the socket 2f2 on the female mold guide ring 2f cooperates with the straight rod hole formed between the limiting support block 1 2i and the limiting support block 2j and the limiting support block 3 2k;

[0033] The straight rod 1 2g1 and the straight rod 2g2 on the blocking bracket 2g are respectively inserted into the insertion hole 1 2f1 and the insertion hole 2f2 on the female mold guide ring 2f;

[0034] The pressure plate 2h1 on the blocking block support plate 2h is inserted into the discharge port composed of the discharge port 1 2c11 on the female mold support seat 2c1 and the discharge port 2f3 on the female mold guide ring 2f, and the baffle 2h2 on the blocking block support plate 2h blocks the discharge port composed of the discharge port 1 2c11 on the female mold support seat 2c1 and the discharge port 2f3 on the female mold guide ring 2f.

[0035] The lifting mechanism 3 includes a pneumatic drive device, a lifting mechanism fixing plate 3c, a guide column 3d, a guide column fixing seat 3e and a lifting slider 3f, the pneumatic drive device includes a cylinder 3a and a piston rod 3b, the guide column 3d is fixed on the guide column fixing seat 3e, and the cylinder 3a and the guide column fixing seat 3e are fixed on the base plate 1; the lifting slider 3f cooperates with the guide column 3d through the guide column hole 3f1 on the lifting slider 3f, and the lifting slider 3f can slide up and down on the guide column 3d; the powder pressing mechanism 2 is connected to the lifting mechanism 3 through an arm rod 4, wherein the arm rod 4 is fixed to the lifting slider 3f, one end of the arm rod 4 is fixed to the piston rod 3b, and the other end of the arm rod 4 is fixed to the female mold 2a.

[0036] One end of the arm rod 4 is provided with a hole 4a that matches the piston rod 3b, and one end of the arm rod 4 is fixedly connected to the piston rod 3b through a fixing nut 3g and the hole 4a on the arm rod 4; the other end of the arm rod 4 is provided with a connecting hole, and the fixation between the other end of the arm rod 4 and the female mold 2a is carried out in the following manner: first, the connecting hole on the other end of the arm rod 4 is put on the female mold upper part 2a1 of the female mold 2a, and then the other end of the arm rod 4 is fixedly connected to the female mold 2a through the female mold fixing ring 2d.

[0037] When in use, first put the powder forming device in the initial state, at this time, the piston rod 3b is in the lower stop position; the pressure plate 2h1 on the block support plate 2h is inserted into the discharge port composed of the discharge port 1 2c11 on the female mold support seat 2c1 and the discharge port 2f3 on the female mold guide ring 2f, and the baffle 2h2 on the block support plate 2h blocks the discharge port composed of the discharge port 1 2c11 on the female mold support seat 2c1 and the discharge port 2f3 on the female mold guide ring 2f; at the same time, the straight rod 1 2g1 and the straight rod 2g2 on the block support 2g are respectively inserted into the socket 1 2f1 and the socket 2f2 on the female mold guide ring 2f and overlapped on the pressure plate 2h1 of the block support plate 2h; the female mold 2a4 whose opening at the bottom of the mold cavity 2a4 is blocked by the block 2e a is pressed on the straight rod 1 2g1 and the straight rod 2g2 on the block bracket 2g; the metal powder as the raw material is loaded into the cavity 2a4 of the female mold 2a; then the male mold 2b composed of the male mold module 1 2b1, the male mold module 2b2 and the male mold module 3 2b3 is inserted into the cavity 2a4 of the female mold 2a from above, and then a punching machine applies a punching pressure to the male mold 2b to punch and form the metal powder loaded in the cavity 2a4 of the female mold 2a; after the metal powder loaded in the cavity 2a4 of the female mold 2a is punched and formed, the block bracket 2g is pulled out, the female mold 2a is lifted by the rise of the piston rod 3b, the block support plate 2h is pulled out, and pressure is applied to the male mold 2b, and the metal powder ingot is ejected from the cavity 2a4 of the female mold 2a, and a powder pressing and demolding work cycle is completed.

[0038] The above is only a preferred embodiment of the present invention, but it cannot be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the description of the present invention are still within the scope of the patent of the present invention.

Claims

1. A powder forming device, characterized in that The powder forming device comprises a powder pressing mechanism and a lifting mechanism, wherein the powder pressing mechanism comprises a female mold and a male mold, wherein the female mold is provided with a cylindrical cavity, wherein the male mold matches the cylindrical cavity on the female mold, and wherein the male mold is composed of a plurality of male mold modules with equal or unequal heights; The powder pressing mechanism further includes a female mold base, a blocking block, a female mold guide ring, a blocking block bracket, a blocking block support plate, a limiting support block 1, a limiting support block 2, and a limiting support block 3, wherein: The female mold base includes a female mold support seat and a flange plate. The female mold support seat is cylindrical, and the top of the female mold support seat is tray-shaped. A discharge port 1 is provided on the side surface of the top of the female mold support seat, and the bottom of the female mold support seat is fixed on the flange plate; the blocking block is provided at the cavity opening at the bottom of the female mold; A guide groove 1 is provided on the top of the limit support block 1, a guide groove 2 is provided on the top of the limit support block 2, the limit support block 1, the limit support block 2 and the limit support block 3 are respectively fixed on the edges of the bottom of the tray-shaped plate at the top of the female mold support seat, wherein the limit support block 1 and the limit support block 2 are respectively fixed on the left and right sides of the discharge port 1 at the top of the female mold support seat, the limit support block 3 is fixed at a position between the limit support block 1 and the limit support block 2, and a straight rod hole is formed between the limit support block 1, the limit support block 2 and the limit support block 3; The blocking bracket comprises a straight rod 1, a straight rod 2 and a handle 1, wherein the straight rod 1 and the straight rod 2 are fixed on the handle 1; The block support plate includes a pressure plate, a baffle and a second handle, wherein the pressure plate is a flat plate structure, the baffle is an arc-shaped plate structure, the pressure plate is fixed on the concave surface of the baffle, and the second handle is fixed on the convex surface of the baffle; The bottom surface of the female mold guide ring is provided with a socket 1 and a socket 2, the side surface of the female mold guide ring is provided with a discharge port 2, and the female mold guide ring is fixed to the top of the female mold support seat, wherein the discharge port 2 on the female mold guide ring matches with the discharge port 1 on the female mold support seat, the socket 1 on the female mold guide ring matches with the guide groove 1 on the limiting support block 1 and the guide groove 2 on the limiting support block 2, and the socket 2 on the female mold guide ring matches with the straight rod hole formed between the limiting support block 1, the limiting support block 2 and the limiting support block 3; The straight rod 1 and the straight rod 2 on the blocking bracket are respectively inserted into the insertion hole 1 and the insertion hole 2 on the female mold guide ring; The pressure plate on the blocking block support plate is inserted into the discharge port formed by the discharge port 1 on the female mold support seat and the discharge port 2 on the female mold guide ring, and the baffle on the blocking block support plate blocks the discharge port formed by the discharge port 1 on the female mold support seat and the discharge port 2 on the female mold guide ring; The lifting mechanism includes a pneumatic drive device, a lifting mechanism fixing plate, a guide column, a guide column fixing seat and a lifting slider, the pneumatic drive device includes a cylinder and a piston rod, the guide column is fixed on the guide column fixing seat, and the cylinder and the guide column fixing seat are fixed on the bottom plate; the lifting slider is matched with the guide column through the guide column hole on the lifting slider, and the lifting slider can slide up and down on the guide column; the powder pressing mechanism is connected to the lifting mechanism through an arm rod, wherein the arm rod is fixed to the lifting slider, one end of the arm rod is fixed to the piston rod, and the other end of the arm rod is fixed to the female mold.

2. A powder forming device according to claim 1, characterized in that The male mold is composed of a male mold module 1, a male mold module 2 and a male mold module 3, and the heights of the male mold module 1, the male mold module 2 and the male mold module 3 are not equal to each other.

3. A powder forming device according to claim 2, characterized in that The male mold module 1, the male mold module 2 and the male mold module 3 are provided with magnetic materials on the end surfaces of one end or both ends, and the two male mold modules are closely attached to each other through magnetism.

4. A powder forming device according to claim 1, characterized in that The demoulding angle of the cavity on the female mold is 1° to 1.5°.

5. A powder forming device according to claim 1, characterized in that Further, the female mold includes a female mold upper part, a female mold lower part and a female mold bottom. The outer diameter of the female mold upper part is smaller than the outer diameter of the female mold lower part, the outer diameter of the female mold lower part is smaller than the outer diameter of the female mold bottom, and the female mold bottom of the female mold cooperates with the female mold guide ring.

6. A powder forming device according to claim 1, characterized in that One end of the arm rod is provided with a hole matching with the piston rod, and one end of the arm rod is fixedly connected to the piston rod through a fixing nut and the hole on the arm rod; the other end of the arm rod is provided with a connecting hole, and the fixation between the other end of the arm rod and the female mold is carried out in the following manner: first, the connecting hole on the other end of the arm rod is put on the upper part of the female mold of the female mold, and then the other end of the arm rod is fixedly connected to the female mold through a female mold fixing ring.

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