CN214290836U - Convenient to use's powder forming machine - Google Patents

Abstract

Convenient to use's powder forming machine, including the master model unit that sets gradually, section mould unit and dynamic pressure unit, the dynamic pressure unit includes main pressure mechanism, and at least one-level prepressing mechanism, the master model unit is including the installation main part, and the master model, be equipped with card income piece on the lateral wall of master model, this card income piece passes through connection structure with the installation main part and is connected, connection structure is by last components of a whole that can function independently and the fit formation of components of a whole that can function independently down, go up components of a whole that can function independently and/or locate the installation main part along upper and lower direction with sliding down, go up the components of a whole that can function independently and the fit department of components of a whole that can function independently down extend to connection structure's one end side at least, be equipped with the screens structure that combines to form corresponding to card income piece and by last components of a whole that can function independently and lower components of a whole that can function independently along fit department extension direction. The utility model discloses a dynamic pressure unit that constitutes by main pressure mechanism and preformer increases powder shaping time, has the tight real, the high beneficial effect of product quality of powder shaping. The female die is mounted and dismounted through the split-combination of the upper split body and the lower split body, and the female die replacement efficiency is improved.

Description

Convenient to use's powder forming machine

Technical Field

The utility model relates to a powder forming equipment technical field, more specifically relates to a convenient to use's powder forming machine.

Background

Powder forming (compacting of powder) is a process of compacting a metal powder body into a compact of a certain shape, size, density and strength, which is one of the basic processes of powder metallurgy. A rotary powder forming machine is a common device for powder forming, and has the working principle that a plurality of stations are arranged on a rotary central disc, each station comprises a female die, an upper die and a lower die which are arranged correspondingly up and down and can be inserted into the female die, the upper die and the lower die are respectively connected with an upper pressing rod and a lower pressing rod, when the stations are rotated to the upper pressing wheel and the lower pressing wheel, the upper pressing rod and the lower pressing rod press the upper die and the lower die into the female die under the common pressure action of the upper pressing wheel and the lower pressing wheel, so that powder in the female die is pressed into a blank block under huge pressure.

The existing rotary powder forming machine generally adopts a power system with single pressure, the powder forming time is not suitable to be controlled, the powder pressing forming time of the produced product is not adjustable, and the technical problem of inaccurate product quality control exists. And the female die is connected with the central station through the pin bolt, and the pin bolt needs to be screwed by means of a tool during disassembly so as to realize the disassembly of the female die and the central station. If the mode is enough for producing products with single shapes, but for factories which produce products with various shapes and frequently replace female dies, more manpower and energy are needed for disassembling the dies, and meanwhile, the production efficiency is low due to low replacement efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above-mentioned defect and not enough, solve among the prior art powder shaping time short, the inconvenient technical problem is changed to the master model, provide a convenient to use's powder forming machine.

In order to achieve the above object, the utility model discloses a specific technical scheme be:

the utility model discloses a convenient to use's powder make-up machine, including the female mould unit that is used for the material loading and provides the powder shaping space, the section mould unit that is used for contacting powder press forming and the dynamic pressure unit that provides suppression power for the section mould unit that sets gradually, the dynamic pressure unit includes main pressure mechanism and at least one-level prepressing mechanism, the female mould unit includes the installation main part, and is used for the material loading and provides the master mould in shaping space, be equipped with card income piece on the lateral wall of master mould, this card income piece passes through connection structure with the installation main part and is connected, connection structure is formed by the upper part of a body and lower part of a body fit, upper part of a body and/or lower part of a body locate the installation main part with sliding along upper and lower direction, the fit department of upper part of a body and lower part of a body extends to the one end side of connection structure at least, is equipped with corresponding to card income piece and by the screens structure that upper part of a body and lower part of a body fit and form along the extension direction of a body, during forming, at least two stages of gradual pressing forming of powder is achieved through a dynamic pressure unit formed by a main pressing mechanism and a prepressing mechanism, so that the forming time of the powder is prolonged, the upper split body and the lower split body are separated in a sliding mode at a combined position to form a guide channel, the clamping piece enters the guide channel from the end side of the connecting structure and then is combined with the lower split body, and the clamping piece is matched with the clamping structure to achieve installation of the female die.

Preferably, at least one end of the upper split body forms a slope body structure, and the lower split body forms a notch corresponding to the upper split body.

Preferably, the two ends of the upper split body form slope body structures with opposite inclination directions, and the clamping structures are formed at the positions corresponding to the gaps and the roots of the slope body structures.

Preferably, the upper split body and the lower split body form an annular connecting structure, and threads in sliding fit with the mounting main body are arranged on the peripheral side wall of the upper split body and/or the lower split body.

Preferably, the snap-in piece is connected with the outer side wall body.

Preferably, the end of the clamping piece forms a polygonal structure, and the outer side wall is provided with an embedding groove with the shape and size matched with the polygonal structure.

Preferably, the master model is formed primarily of an outer layer, a middle layer, and an inner laminate.

Preferably, the inner wall of the outer layer is provided with a first boss, the outer wall of the middle layer is provided with a second boss in an inverted buckling manner corresponding to the first boss, and the outer layer, the middle layer and the inner layer are all in over tight fit.

Preferably, the mounting main body is provided with a plurality of through holes for mounting the connecting structure, and the upper split body and/or the lower split body are/is slidably connected with the through holes.

Preferably, the mounting body is of a disc-like structure and is rotatable about the axis of the disc-like structure.

Preferably, the braking pressure ratio of the main pressure mechanism to the pre-pressure mechanism is 1.25-2.85: 1.

preferably, the braking pressure ratio of the main pressure mechanism to the pre-pressure mechanism is 1.5-2.5: 1.

compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses when the shaping, the mould unit is pressed to dynamic pressure unit oppression section mould unit along upper and lower direction motion, and section mould unit and female mould unit contact suppression powder shaping realize gradually slowly pressing the type of making to the at least two-stage of powder through the dynamic pressure unit that constitutes by main pressure mechanism and precompression mechanism to increase powder shaping time. Has the advantages of compact powder molding and high product quality.

The utility model discloses the master model passes through connection structure with the installation main part and is connected, is equipped with the screens piece on the master model, connection structure is by last components of a whole that can function independently and the fit of components of a whole that can function independently down forms, go up components of a whole that can function independently and/or components of a whole that can function independently down locate the installation main part with sliding along upper and lower direction, go up the components of a whole that can function independently and the fit department of components of a whole that can function independently down extends to connection structure's one end side at least, is equipped with corresponding to the card income piece and combines the screens structure that forms by last components of a whole that can function independently and lower components of a whole that can function independently along the fit department extension direction, during the installation, goes up components of a whole that can function independently and the fit of components of a whole that can function independently down behind the last components of a whole that can function independently and the lower components of a whole that can function independently, the card income piece and the installation of a whole that can function independently realize the master model with the cooperation of screens structure are gone into by connection structure. The female die is mounted and dismounted through the split-combination of the upper split body and the lower split body, the female die replacement efficiency is improved, the production efficiency is further improved, and the female die replacement device has the advantages of convenience in replacement and few auxiliary tools.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a powder forming machine according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the powder forming machine according to the preferred embodiment of the present invention.

Fig. 3 is a schematic view of the internal structure of the powder forming machine from another perspective in the preferred embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a dynamic pressure unit in a preferred embodiment of the present invention.

Fig. 5 is a schematic structural view of a pressure receiving member according to a preferred embodiment of the present invention.

Fig. 6 is a schematic view of another structure of the pressure receiving member according to the preferred embodiment of the present invention.

Fig. 7 is a schematic view of a structure of a main body for installation in a preferred embodiment of the present invention.

Fig. 8 is a schematic view of a female mold and a connecting structure according to a preferred embodiment of the present invention.

Fig. 9 is a structural diagram illustrating a state of the connection structure in accordance with the preferred embodiment of the present invention.

Fig. 10 is a schematic diagram of an explosive structure of a female mold according to a preferred embodiment of the present invention.

Fig. 11 is a partially enlarged structural view of a portion a in fig. 10.

Fig. 12 is a schematic cross-sectional view of a female mold according to a preferred embodiment of the present invention.

Description of reference numerals:

10 supporting bodies, 11 rotating shafts,

20 mother die unit, 21 installation body, 211 through hole, 22 mother die, 221 insert, 222 embedding groove, 223 outer layer, 2231 first boss, 224 middle layer, 2241 second boss, 225 inner layer, 226 molding groove,

30 die unit, 31 pressure receiving piece, 32 rod-shaped body, 33 die, 34 elastic piece, 35 plug, 36 open cavity,

40 dynamic pressure unit, 41 main pressure mechanism, 42 pre-pressure mechanism, 43 driving device, 44 worm, 45 worm wheel, 46 brake shaft, 47 driving pressure piece, 471 upper driving pressure piece, 472 lower driving pressure piece,

50 carriers, 51 upper carriers, 511 mounting holes, 52 lower carriers,

60 concave-convex structure,

70 rotary power assembly, 71 rotary turbine, 72 rotary worm, 73 rotary driving device,

80 connecting structure, 81 upper split body, 82 lower split body, 83 combining part, 84 clamping structure, 85 guide channel, 86 slope body structure, 87 gap, 88 screw thread,

90 casing, 91 observation window, 92 main pressure control handle, 93 prepressing control handle and 94 circuit box.

Detailed Description

The present invention is further explained and illustrated by the following embodiments, it should be understood that the following embodiments are for the purpose of making the technical solution of the present invention clearer and easier to understand, and do not limit the scope of the claims.

As shown in fig. 7 to 12, the female die mounting structure for powder molding according to the present invention includes a mounting main body 21 and a female die 22 for loading and providing a molding space, wherein a snap-in member 221 is disposed on an outer side wall of the female die 22, the snap-in member 221 is connected to the mounting main body 21 through a connecting structure 80, the connecting structure 80 is formed by combining an upper split body 81 and a lower split body 82, the upper split body 81 and/or the lower split body 82 are slidably disposed on the mounting main body 21 along an up-down direction, a combined portion 83 of the upper split body 81 and the lower split body 82 at least extends to one end side of the connecting structure 80, a snap-in structure 84 corresponding to the snap-in member 221 and formed by combining the upper split body 81 and the lower split body 82 is disposed along an extending direction of the combined portion 83, during mounting, the upper split body 81 and the lower split body 82 are slidably separated from the combined portion 83 to form a guide channel 85, the snap-in which the snap-in member 221 enters the guide channel 85 from the end side of the connecting structure 80, the upper split body 81 and the lower split body 82, the snap-in elements 221 cooperate with the detent structures 84 to effect the installation of the master model 22.

In a preferred embodiment, at least one end of the upper split 81 is formed with a slope structure 86, and the lower split 82 is formed with a notch 87 corresponding to the upper split 81.

In a preferred embodiment, the two ends of the upper split body 81 are formed with slope body structures 86 with opposite inclination directions, and the locking structures 84 are formed at the root parts of the slope body structures 86 corresponding to the notches 87.

In a preferred embodiment, the upper part 81 and the lower part 82 form a ring-shaped connecting structure 80, and a thread 88 which is slidably engaged with the mounting body 21 is provided on the circumferential side wall of the upper part 81 and/or the lower part 82.

In a preferred embodiment, the snap-in piece 221 is connected to the outer sidewall integral body.

In a preferred embodiment, the end of the snap-in piece 221 forms a polygonal structure, and the outer side wall is provided with a scarf groove 222 with a shape and size matched with the polygonal structure.

In a preferred embodiment, the master mold 22 is primarily formed of an outer layer 223, a middle layer 224, and an inner layer 225.

In a preferred embodiment, the inner wall of the outer layer 223 is provided with a first boss 2231, the outer wall of the middle layer 224 is provided with a second boss 2241 in an inverted manner corresponding to the first boss 2231, and the outer layer 223, the middle layer 224 and the inner layer 225 are all over-tightly fitted.

In a preferred embodiment, the mounting body 21 is provided with a plurality of through holes 211 for mounting the connecting structure 80, and the upper part 81 and/or the lower part 82 are slidably connected with the through holes 211.

In a preferred embodiment, the mounting body 21 is a disk-like structure rotatable about its axis.

The present invention will be further described with reference to the following specific examples.

Example 1

As shown in fig. 1 to 3, embodiment 1 provides a powder forming machine, which includes a casing 90, wherein the casing 90 is provided with an observation window 91, a main pressure control handle 92, a pre-pressing control handle 93, and a circuit box 94, the observation window 91 is used for observing the internal pressing process and state, and has the effects of monitoring, acquiring the field working condition, and preventing program errors, the main pressure control handle 92 and the pre-pressing control handle 93 are respectively used for adjusting the pressure of the main pressure mechanism 41 and the pressure of the pre-pressing mechanism 42, and the circuit box 94 is used for loading wires, chips, and other parts required by the machine.

The central shaft 11 is axially provided with a middle layer material carrying disc (i.e. a mounting main body 21, as shown in fig. 7) which can rotate along with the central shaft, an upper layer rotating disc 51 and a lower layer rotating disc 52 (the upper and lower layer rotating discs belong to the lower concept of 50 carriers), and the middle layer material carrying disc, the upper layer rotating disc and the lower layer rotating disc rotate along the central shaft 11 around the axial direction to realize rotation. The bottom end of the central shaft 11 is connected with a worm wheel 71, a worm 72 and a driving device 73, the driving device 73 provides power and transmits the power to the worm wheel 71 through the worm 72, and then the worm wheel 71 drives the central shaft 11 connected with the worm wheel to rotate, so that the middle layer material carrying disc 21, the upper layer rotating disc and the lower layer rotating disc are driven to rotate.

The middle layer material loading disc is provided with a mounting hole 211 near the outer edge, and a female die 22 is mounted in the mounting hole 211, so that the female die rotates along with the female die.

The upper layer rotating disc 51 is provided with a mounting hole 511, the mounting hole 511 is slidably provided with an upper rod pressing unit, and the upper rod pressing unit is mounted in the mounting hole so that the upper rod pressing unit can rotate along with the upper scale rotating disc.

As shown in fig. 5 to 6, the upper press bar unit (the upper die unit 30) includes a case body 32 having an open end and a closed end, a lower die 33, a spring 34, and a lower press bar 35, wherein the lower die 33 is disposed at the closed end of the case body 32. The spring 34 and the lower pressing rod 35 are connected, the spring 34 is arranged inside the shell main body 32, part of the lower pressing rod 35 and the shell main body 32 seal the spring 34, the length of the upper pressing rod unit 30 is prolonged by the arrangement of the spring 34, the contact space between the upper pressing rod unit 30 and the lower pressing wheel 47 is increased, the lower pressing rod 35 can be in contact with the lower pressing wheel 47 in advance, when the lower pressing wheel 47 descends to the lowest point, the maximum pressure is provided, and the press forming of the material loaded in the female die 22 is completed.

The pressurized end of depression bar 35 forms sawtooth structure 60 down, and the pressurized end of sawtooth structure 60 can be with the better meshing contact of pinch roller 47 down, has avoided pinch roller 47 to push down the problem that the in-process appears skidding.

As shown in fig. 4, the upper pressure wheel assembly (which may be the main pressure mechanism 41 or the pre-pressure mechanism 42) includes a lower pressure wheel 47, a transmission shaft 46, a turbine 45, a worm 44, and a driving device 43, which are connected in sequence, the transmission shaft 46 is eccentrically connected to the lower pressure wheel 47, a contact lower pressure surface is formed on the peripheral side of the lower pressure wheel 47, and the contact lower pressure surface forms a sawtooth structure 60 adapted to the pressure receiving end of the lower pressure rod. The contact pushes down the downward motion of face and pushes down the contact of pole pressurized end, realizes firm relation of connection through multistage sawtooth meshing, avoids pushing down the problem of skidding of in-process.

Lower excellent unit, the lower pinch roller subassembly of vaulting down, structural respectively with last excellent unit of pressure and last pinch roller subassembly the same, invert corresponding to last excellent unit of pressure and last pinch roller subassembly in the position, lower excellent unit of vaulting is used for propping the bottom of propping cavity in the master model, prevents to carry the material whereabouts, provides pressure bearing structure in order to realize the two side press forming to the powder for last excellent unit of pressure simultaneously.

The main pressing mechanism 41 comprises a group of upper pressing wheel assemblies and a group of lower pressing wheel assemblies, the prepressing mechanism 42 also comprises a group of upper pressing wheel assemblies and a group of lower pressing wheel assemblies, and the uniform and consistent density of products is ensured through a mode of combining main pressing and prepressing. The main pressure is 15 tons, the pre-pressure is about 10 tons, and the pressure ratio of the main pressure to the pre-pressure is about 1.9: 1.

the female die 22 comprises an outer layer 223, a middle layer 224 and an inner layer 225 which are mutually independent and are in over-tight fit, because the manufacturing precision of the die is high, the forming precision of the female die 22 is extremely strictly controlled, the outer layer 223, the middle layer 224 and the inner layer 224 which are independently manufactured are combined into a complete female die, the forming difficulty of the female die is reduced, and products in various shapes can be conveniently formed by pressing through changing the shape of a cavity in the inner layer.

As shown in fig. 8 to 12, the outer layer 223, the middle layer 224 and the inner layer 224 are all annular, the inner wall of the outer layer 223 is provided with a boss 2231, the outer wall of the middle layer 224 is provided with a middle layer boss 2241 which is reversely buckled with the outer layer boss, the inner wall of the middle layer 224 is linear, the outer wall of the inner layer 224 is linear matched with the inner wall of the middle layer, and the hollow cavity of the inner layer 224 is used for carrying materials and performing compression molding.

The outer layer 223 is further provided with an outer layer as a combined structure on the basis of respectively independently manufacturing three layers of structures to combine the female die, and specifically comprises an outer layer main body and a clamping piece 221, wherein a fixing hole 222 is formed in the peripheral side wall of the outer layer main body, one end of the clamping piece 221 forms an embedding end 222 matched with the fixing hole, and the embedding end is embedded into the fixing hole and fixed to the outer layer.

The free end of the clamping piece 221 is in sliding fit with the inner wall of the mounting hole 211 formed in the middle layer material carrying disc 21 (the inner wall of the mounting hole 211 forms a female die mounting structure), and the clamping piece is mounted on the middle layer material carrying disc 21 in a sliding-in mode.

The female die mounting structure 80 comprises an annular base 82 and a movable wall 81, wherein the movable wall 81 is an incomplete partial annular body, two ends of the movable wall 81 form slope bodies 86 with opposite extension directions, a semicircular through hole 84 is formed at the root of the slope body 86 at one end, the annular base is provided with a corresponding semicircular through hole, the peripheral side wall of the movable wall 81 is provided with threads 88, and the female die mounting structure 80 is arranged in a mounting hole 211 of the middle layer material carrying disc 21 and is matched with the mounting hole 211 through the threads 88. The movable wall 81 is spirally lifted to form a sliding rail 85 for embedding the free end of the clamping piece 221, when the clamping piece 221 slides into the root part of the slope body 86, the clamping piece is clamped into the semicircular structure 84 of the annular base, the movable wall 81 spirally descends, the semicircular through holes are closed, the free end of the clamping piece is clamped, and the female die is rapidly replaced in this way. The present invention has been described in terms of embodiments, but not limitations, and other variations of the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be included within the scope of the present invention as defined in the following claims, in view of the description of the present invention.

Claims (10)

1. The utility model provides a convenient to use's powder forming machine which characterized in that:

comprises a female die unit (20) which is used for loading materials and providing a powder forming space, a die unit (30) which is used for contact powder press forming, and a dynamic pressure unit (40) which provides pressing power for the die unit (30) which are arranged in sequence,

the dynamic pressure unit (40) comprises a main pressure mechanism (41) and at least one stage of pre-pressure mechanism (42),

the female die unit (20) comprises a mounting body (21) and a female die (22) used for loading and providing a forming space,

the outer side wall of the female die (22) is provided with a clamping piece (221), the clamping piece (221) is connected with the mounting main body (21) through a connecting structure (80),

the connecting structure (80) is formed by combining an upper split body (81) and a lower split body (82),

the upper split body (81) and/or the lower split body (82) is/are provided to the mounting body (21) so as to slide in the vertical direction,

the combined part (83) of the upper split body (81) and the lower split body (82) at least extends to one end side of the connecting structure (80),

a clamping structure (84) which corresponds to the clamping piece (221) and is formed by combining the upper split body (81) and the lower split body (82) is arranged along the extending direction of the combining body (83),

during molding, at least two-stage gradual pressing molding of powder is realized through a dynamic pressure unit (40) composed of a main pressure mechanism (41) and a prepressing mechanism (42) so as to increase the powder molding time, an upper split body (81) and a lower split body (82) are separated in a sliding mode at a combined part (83) to form a guide channel (85), a clamping piece (221) enters the guide channel (85) from the end side of a connecting structure (80), then the upper split body (81) and the lower split body (82) are combined, and the clamping piece (221) is matched with a clamping structure (84) to realize the installation of the female die (22).

2. A powder forming machine of claim 1, wherein:

at least one end of the upper split body (81) forms a slope body structure (86),

the lower sub-body (82) forms a notch (87) corresponding to the upper sub-body (81).

3. A powder forming machine of claim 2, wherein:

slope body structures (86) with opposite inclination directions are formed at the two ends of the upper split body (81),

the clamping structure (84) is formed at the position, corresponding to the notch (87), of the root of the slope body structure (86).

4. A powder forming machine of claim 1, wherein:

the upper split body (81) and the lower split body (82) form a ring-shaped connecting structure (80),

and threads (88) which are in sliding fit with the mounting main body (21) are arranged on the peripheral side wall of the upper split body (81) and/or the lower split body (82).

5. A powder forming machine of claim 1, wherein:

the clamping piece (221) is connected with the outer side wall integrated body.

6. A powder forming machine of claim 5, wherein:

the ends of the snap-in pieces (221) form a polygonal structure,

the outer side wall is provided with an embedding groove (222) with the shape and the size matched with the polygonal structure.

7. A powder forming machine of claim 1, wherein:

the master model (22) is mainly formed by integrating an outer layer (223), a middle layer (224), and an inner layer (225).

8. A powder forming machine of claim 7, wherein:

the inner wall of the outer layer (223) is provided with a first boss (2231),

the outer wall of the middle layer (224) is provided with a second boss (2241) corresponding to the first boss (2231) in an inverted manner,

the outer layer (223), the middle layer (224), and the inner layer (225) are all over-tightly fitted.

9. A powder forming machine of claim 1, wherein:

the mounting main body (21) is provided with a plurality of through holes (211) for mounting the connecting structure (80),

the upper split body (81) and/or the lower split body (82) are/is connected with the through hole (211) in a sliding mode.

10. A powder forming machine of claim 1, wherein:

the pressure ratio of the main pressing mechanism (41) to the pre-pressing mechanism (42) is 1.5-2.5: 1.

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