CN118288603A - Powder product hot briquetting equipment - Google Patents

Abstract

The application relates to the technical field of material forming, in particular to powder product hot-press forming equipment which comprises a frame, and further comprises a powder feeding mechanism, a hot-press forming mechanism and a forming and blanking mechanism which are arranged on the frame, wherein the powder feeding mechanism conveys powder to the powder feeding mechanism, the powder feeding mechanism is positioned on one adjacent side of the hot-press forming mechanism, the powder feeding mechanism is used for conveying powder to the hot-press forming mechanism, the hot-press forming mechanism is used for hot-press forming powder, and the forming and blanking mechanism is used for conveying formed powder out of the hot-press forming mechanism. The application has the effect of improving the problem of complex process of the powder forming mode in the prior art.

Description

Powder product hot briquetting equipment

Technical Field

The application relates to the technical field of material molding, in particular to powder product hot-press molding equipment.

Background

A powder forming machine is an apparatus for press forming a powder product, which is an apparatus for processing loose powder into a certain size, shape, and density and strength. The main implementation of powder molding is to send a certain amount of powder into a mold on a powder molding machine, press the powder with the mold, mold the powder in the mold and solidify the powder, and the powder product hot-press molding equipment is widely used in the production of various powder products, such as powder metallurgy, ceramics, medicine, food and other industries.

The molding of powders on the market generally involves either cold molding followed by sintering or heat finishing after molding. Specifically: firstly cold forming and then sintering, namely firstly cold forming the powder, then sintering, wherein the powder is subjected to plastic deformation in the cold forming process so as to change the shape and the size of the powder, and then sintering, wherein particles in the powder are mutually combined through heating to form a formed body with good mechanical property and physical property; after forming, the powder is firstly formed and then subjected to heat finishing, and the heat finishing is used for further improving the properties of the powder, such as sintering temperature, atmosphere, heat preservation time and the like, which affect the final properties of the powder.

In summary, the manner in which powders are formed on the market still relies on conventional cold forming and sintering equipment, which typically includes powder presses, dies, sintering ovens, etc. that cooperate to complete the manufacturing process from powder to shaped articles. In this process, the powder is compressed into a part of the desired shape and then sintered or otherwise heat treated to increase density and mechanical properties. Such conventional cold forming and sintering processes typically involve cooperation between multiple devices, such that the overall process has a certain complexity, the conversion and handover between procedures requires time, and may be affected by factors such as device operation efficiency, process parameter adjustment, etc., and the overall production cycle may be relatively long, which may be improved.

Disclosure of Invention

In order to solve the problem of complex process in the powder forming mode in the prior art, the application provides powder product hot-press forming equipment.

The application provides powder product hot-press molding equipment, which adopts the following technical scheme:

The powder product hot-press forming equipment comprises a frame, and further comprises a powder feeding mechanism, a hot-press forming mechanism and a forming blanking mechanism which are arranged on the frame, wherein the powder feeding mechanism conveys powder to the powder feeding mechanism, the powder feeding mechanism is positioned on one adjacent side of the hot-press forming mechanism, the powder feeding mechanism is used for conveying powder to the hot-press forming mechanism, the hot-press forming mechanism is used for hot-press forming powder, and the forming blanking mechanism is used for conveying formed powder out of the hot-press forming mechanism; the hot press forming mechanism comprises an upper die assembly arranged on the frame, a first driving piece fixed on the frame and used for driving the upper die assembly to move up and down, a lower die assembly positioned below the upper die assembly, a second driving piece fixed on the frame and used for driving the lower die assembly to move up and down, and a middle die assembly fixed on the frame and positioned between the upper die assembly and the lower die assembly, wherein the middle die assembly comprises a heating plate close to one side of the upper die assembly, a cooling plate close to one side of the lower die assembly, a connecting plate arranged between the heating plate and the cooling plate, a plurality of heating cavities arranged on the heating plate, a plurality of cooling cavities arranged on the cooling plate, a plurality of connecting cavities arranged on the connecting plate, and the heating cavities, the cooling cavities and the connecting cavities are mutually communicated, and the diameters of the heating cavities, the diameters of the cooling cavities and the diameters of the connecting cavities are equal;

The second driving piece drives a second forming plate in the lower die assembly to sequentially penetrate through the cooling cavity and the connecting cavity and then to be embedded into the heating cavity, the powder feeding mechanism conveys powder to the heating cavity, the first driving piece drives a first forming plate in the upper die assembly to be embedded into the heating cavity, and a forming space for powder hot press forming is formed by a gap between the second forming plate and the first forming plate; when powder is hot-pressed and molded, the second driving piece drives the second molding plate to move towards one side of the cooling cavity, and the first driving piece drives the first molding plate to move towards one side of the cooling cavity, so that the molding space is positioned in the cooling cavity; after the molding powder is cooled, the second molding plate is driven by the second driving piece to be separated from the cooling cavity, the molding blanking mechanism moves to the lower part of the cooling plate, and the first molding plate is driven by the first driving piece to move towards one side of the molding blanking mechanism so as to transport the molding powder to the molding blanking mechanism.

Through adopting above-mentioned technical scheme, powder feed mechanism is with powder transportation to powder feeding mechanism on, and powder feeding mechanism is used for transporting powder to hot briquetting mechanism, and hot briquetting mechanism is used for powder hot briquetting, and shaping unloading mechanism is used for transporting shaping powder out hot briquetting mechanism, and wherein, the concrete step of powder shaping is: firstly, the second forming plate is embedded into the heating cavity through the second driving piece, then the powder is conveyed into the heating cavity through the powder feeding mechanism, then the first forming plate is embedded into the heating cavity through the first driving piece, so that a forming space for powder hot press forming is formed between the first forming plate and the second forming plate (namely, the powder is pressurized through the first forming plate and the second forming plate), then the first forming plate and the second forming plate are displaced through the first driving piece and the second driving piece, at the moment, the forming space is positioned in the cooling cavity to cool the formed powder, finally, the second forming plate is taken out of the cooling cavity through the second driving piece, the first forming plate is driven by the first driving piece to push the formed powder out of the cooling cavity to enable the formed material to be conveyed into the forming and blanking mechanism.

Optionally, powder feed mechanism including set up in powder feeding mechanism top and be used for storing the powder box, a plurality of set up in the powder box is close to the first discharge hole of powder feeding mechanism one side, run through the powder axle of powder box, set up in adjacent one side of powder box and be used for the drive the powder cylinder of stamping along linear reciprocating motion, set up in the powder box with the ration subassembly between the powder feeding mechanism, the powder cylinder drive stamp the powder axle along linear reciprocating motion, so that powder passes through first discharge hole transportation extremely in the ration subassembly, the ration subassembly will quantitative powder transportation extremely powder feeding mechanism.

Through adopting above-mentioned technical scheme, through the drive of mark powder cylinder mark powder axle along straight line reciprocating motion, the motion of mark powder axle in the powder box makes the powder in the powder box produce the flow to make powder discharge through first discharge port powder box, measure the powder through quantitative assembly, be favorable to improving the uniformity of product, in order to make the weight of every shaping powder unanimous, have quantitative assembly to measure the back, with powder transmission to powder feeding mechanism again.

Optionally, the quantifying component comprises a supporting plate fixed on the frame, a quantifying plate arranged on one side of the supporting plate, close to the powder box, and in sliding connection with the supporting plate, a quantifying cylinder arranged on the supporting plate and used for driving the quantifying plate to slide along a straight line, a plurality of quantifying holes arranged on the quantifying plate, and a plurality of second discharging holes arranged on the supporting plate; the quantitative assembly comprises a metering state and a conveying state, and when the quantitative assembly is in the metering state, the quantitative cylinder drives the quantitative plate to move so that the quantitative hole is communicated with the first discharging hole and the quantitative hole is not communicated with the second discharging hole; when the quantitative assembly is in the conveying state, the quantitative cylinder drives the quantitative plate to move, so that the quantitative hole is communicated with the second discharging hole, the quantitative hole is not communicated with the first discharging hole, and powder is conveyed to the powder feeding mechanism through the second discharging hole.

Through adopting above-mentioned technical scheme, when the quantitative assembly is located the measurement state, quantitative cylinder drive quantitative board removes to make quantitative hole and first discharge gate intercommunication, powder enters into quantitative downthehole through first discharge gate, confirms the volume of powder through the volume of design quantitative hole, when quantitative hole fills up powder, quantitative assembly changes the delivery state from the measurement state into, quantitative cylinder drive quantitative board removes, so that quantitative hole and second discharge gate intercommunication, conveys powder to powder feeding mechanism through the second discharge gate.

Optionally, the powder feeding mechanism includes a first fixing frame arranged on the frame, a feeding plate arranged on the first fixing frame, a material carrying plate arranged on one side of the feeding plate, which is close to the powder feeding mechanism, and is in sliding connection with the feeding plate, a plurality of material carrying holes arranged on the material carrying plate, a plurality of third discharging holes arranged on the feeding plate, a feeding cylinder arranged on the first fixing frame and used for driving the feeding plate to move along a straight line, and a powder discharging cylinder arranged on the feeding plate and used for driving the material carrying plate to move along a straight line; the powder feeding mechanism comprises a loading state and a discharging state, when the powder feeding mechanism is in the loading state, the feeding cylinder conveys the feeding plate to the lower part of the powder feeding mechanism, the powder feeding mechanism conveys powder into the loading hole, and the loading hole is not communicated with the third discharging hole; when the powder feeding mechanism is in the discharging state, the feeding cylinder conveys the feeding plate into the hot press forming mechanism, the feeding cylinder drives the carrying plate to move along a straight line, so that the carrying hole is communicated with the third discharging hole, and powder is conveyed to the hot press forming mechanism through the third discharging hole.

Through adopting above-mentioned technical scheme, when powder feeding mechanism is in the loading state, the feeding cylinder transports the charge plate to powder feed mechanism below, powder feed mechanism is with powder transmission to carrying the downthehole, carry the downthehole non-intercommunication of downthehole with the third discharge hole this moment, after carrying the downthehole back of carrying the material with powder feeding mechanism's state from carrying the material state to unloading state, when powder feeding mechanism is in the unloading state, the feeding cylinder transports the charge plate to hot briquetting mechanism in, the feeding cylinder drives the charge plate along rectilinear motion, so that carry the downthehole and the third discharge hole intercommunication, pass through the third discharge hole with powder transmission to hot briquetting mechanism.

Optionally, the molding blanking mechanism comprises a second fixing frame arranged on the frame and positioned at one side adjacent to the hot press molding mechanism, a receiving plate arranged on the second fixing frame, a receiving cylinder arranged on the second fixing frame and used for driving the receiving plate to move along a straight line, a scraping plate arranged on the receiving plate and connected with the receiving plate in a sliding manner, a scraping cylinder arranged on the receiving plate and used for driving the scraping plate to move along a straight line, and a finished product box arranged at one side, far away from the second fixing frame, of the hot press molding mechanism; the molding blanking mechanism comprises a receiving state and a scraping state, when the molding blanking mechanism is in the receiving state, the receiving cylinder drives the receiving plate to move into the hot-press molding mechanism, and the hot-press molding mechanism conveys molding powder onto the receiving plate; when the forming and blanking mechanism is in a scraping state, the scraping cylinder drives the scraping plate to move along the length direction of the receiving plate so as to transport the forming powder on the receiving plate into the finished product box.

Through adopting above-mentioned technical scheme, when shaping unloading mechanism is located the material state, connect material cylinder drive to connect the flitch and remove to hot briquetting mechanism in, hot briquetting mechanism transports shaping powder to connect the flitch on, after shaping powder all transported to the flitch, change the state of shaping unloading mechanism from the material state into scraping the material state, scrape the flitch and remove along the length direction of material plate is scraped in the drive of material cylinder to with the shaping powder transportation on the material plate to in the finished product box.

Optionally, the upper die assembly further includes a first guide rod disposed on one side of the frame and close to the first forming plate, and a first guide plate sleeved on the first guide rod and moving reciprocally along an axial direction of the first guide rod, and a first displacement sensor disposed on the frame and used for measuring displacement of the first guide plate, where the first forming plate is fixed on one side of the first guide plate and close to the middle die assembly.

Through adopting above-mentioned technical scheme, in order to improve the accuracy of the motion trail of last mould subassembly to make upward mould subassembly follow vertical direction and reciprocate, install first guide bar and first deflector in the frame, in order to make first deflector along the straight line direction reciprocating motion of first guide bar, install first displacement sensor in the frame for accurate first deflector's travel distance, the travel distance of first deflector is recorded through first displacement sensor first sensor, thereby accurate first shaping board is in the position of heating die cavity or cooling die cavity.

Optionally, the lower die assembly further includes a second guide rod disposed on one side of the frame and close to the second forming plate, a second guide plate sleeved on the second guide rod and moving reciprocally along the axis direction of the second guide rod, and a second displacement sensor disposed on the frame and used for measuring displacement of the second guide plate, wherein the second forming plate is fixed on one side of the second guide plate and close to the middle die assembly.

Through adopting above-mentioned technical scheme, in order to improve the accuracy of the motion trail of lower mould subassembly to make lower mould subassembly follow vertical direction and reciprocate, install second guide bar and second deflector in the frame, in order to make second deflector follow the straight line direction reciprocating motion of second guide bar, install second displacement sensor in the frame for accurate second deflector's travel distance, record the travel distance of first deflector through the second displacement sensor, thereby accurate second shaping board is in the position of heating die cavity or cooling die cavity.

Optionally, the first driving member and the second driving member are both hydraulic cylinders.

By adopting the technical scheme, the hydraulic cylinder can provide high torque and high force output and has the characteristics of quick response and stable operation, and the hydraulic cylinder is generally composed of a piston and a piston rod, and the piston is pushed or pulled through hydraulic force, so that the movement of the cylinder is realized.

Optionally, a vibrator is disposed on the support plate.

Through adopting above-mentioned technical scheme, in order to improve the flow rate of powder, install the vibrator in the backup pad, shake and install vibrator or vibrator in the backup pad and can effectively improve the flow rate of powder, the vibration can break the static friction power between the powder, makes the powder particle slide more easily to reduce the possibility of caking, improved the mobility.

Optionally, the cross section of the second discharging hole is in a horn shape.

Through adopting above-mentioned technical scheme, the horn-shaped design can help the powder to flow out more evenly, has reduced the jam or the inhomogeneous circumstances that flows that probably appear in the ejection of compact in-process, helps improving production efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Powder feed mechanism is with powder transportation to powder feeding mechanism on, and powder feeding mechanism is used for transporting powder to hot briquetting mechanism, and hot briquetting mechanism is used for carrying out hot briquetting mechanism with powder hot briquetting, shaping unloading mechanism, and wherein, the concrete step of powder shaping is: firstly, embedding a second forming plate into a heating cavity through a second driving member, secondly, conveying powder into the heating cavity through a powder feeding mechanism, secondly, embedding a first forming plate into the heating cavity through a first driving member, so that a forming space for powder hot press forming is formed by a gap between the first forming plate and the second forming plate (namely, the powder is pressurized through the first forming plate and the second forming plate), then, displacing the first forming plate and the second forming plate through the first driving member and the second driving member, at the moment, the forming space is positioned in a cooling cavity to cool formed powder, finally, taking the second forming plate out of the cooling cavity through the second driving member, and driving the first forming plate to push the formed powder out of the cooling cavity through the first driving member to convey formed materials into a forming and blanking mechanism.

2. The powder stamping cylinder drives the powder stamping shaft to reciprocate along a straight line, the powder in the powder box flows due to the movement of the powder stamping shaft in the powder box, so that the powder is discharged out of the powder box through the first discharging hole, the powder is metered through the quantitative assembly, the consistency of products is improved, the weight of each formed powder is consistent, and the powder is conveyed to the powder feeding mechanism after being metered through the quantitative assembly;

3. In order to improve the flow rate of the powder, the supporting plate is provided with the vibrator, and the vibrator or the vibrator is arranged on the supporting plate to effectively improve the flow rate of the powder, and the static friction force between the powder can be broken through vibration, so that the powder particles slide more easily, the possibility of agglomeration is reduced, and the fluidity is improved.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of the overall structure of a hot press forming mechanism according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of an upper die assembly, a lower die assembly, and a middle die assembly in accordance with an embodiment of the present application;

FIG. 4 is a diagram showing a state change of the first molding plate and the second molding plate in the embodiment of the present application;

FIG. 5 is a schematic view of the powder feeding mechanism and the dosing assembly in an embodiment of the present application;

FIG. 6 is a cross-sectional view of a powder feed mechanism and a dosing assembly in an embodiment of the application;

FIG. 7 is an enlarged view of portion A of FIG. 6 in accordance with an embodiment of the present application;

fig. 8 is a schematic diagram of a mechanism of a molding and blanking mechanism in an embodiment of the present application.

Reference numerals illustrate:

1. A frame; 2. a powder feeding mechanism; 3. a powder feeding mechanism; 4. a hot press forming mechanism; 5. a molding blanking mechanism; 6. an upper die assembly; 7. a first driving member; 8. a lower die assembly; 9. a second driving member; 10. a middle mold assembly; 11. a heating plate; 12. a cooling plate; 13. a connecting plate; 14. heating the cavity; 15. cooling the cavity; 16. connecting the cavity; 17. a first molding plate; 18. a second molding plate; 19. a molding space; 20. a powder box; 21. a first discharge hole; 22. a powder poking shaft; 23. a powder stamping cylinder; 24. a dosing assembly; 25. a support plate; 26. a metering plate; 27. a dosing cylinder; 28. a metering orifice; 29. a second discharge hole; 30. a first fixing frame; 31. a feeding plate; 32. a material carrying plate; 33. a loading hole; 34. a third discharge hole; 35. a feeding cylinder; 36. a powder discharging cylinder; 37. the second fixing frame; 38. a receiving plate; 39. a material receiving cylinder; 40. a scraping plate; 41. a scraping cylinder; 42. a finished product box; 43. a first guide bar; 44. a first guide plate; 45. a first displacement sensor; 46. a second guide bar; 47. a second guide plate; 48. a second displacement sensor; 49. a vibrator.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, may be in communication with each other between two elements or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The embodiment of the application discloses powder product hot-press molding equipment.

Referring to fig. 1 and 2, a powder product hot-press forming apparatus includes a frame 1, and a powder feeding mechanism 2, a powder feeding mechanism 3, a hot-press forming mechanism 4 and a forming and blanking mechanism 5 mounted on the frame 1, compared with the conventional powder forming process which needs to involve cooperation among a plurality of apparatuses, the whole process has a certain complexity, and the process of feeding, forming and blanking is integrated by adopting a scheme in the application, and the process of powder forming can be completed by adopting a single apparatus. In order to simplify the hot press forming mechanism 4 for hot pressing the powder product, so as to improve the production efficiency, the hot press forming mechanism 4 includes an upper die assembly 6, a first driving member 7, a lower die assembly 8, a second driving member 9, and a middle die assembly 10, wherein the middle die assembly 10 is mainly used for powder forming.

Specifically, the hot press forming mechanism 4 is sequenced from top to bottom into an upper die assembly 6, a middle die assembly 10 and a lower die assembly 8, the first driving piece 7 and the second driving piece 9 are both fixed on the frame 1, the first driving piece 7 is used for driving the upper die assembly 6 to move up and down, the second driving piece 9 is used for driving the lower die assembly 8 to move up and down, the lower die assembly 8 is firstly driven to abut against the middle die assembly 10 through the second driving piece 9, then powder is conveyed to a cavity in the middle die assembly 10 through the powder feeding mechanism 3, then the upper die assembly 6 is driven to abut against the middle die assembly 10 through the first driving piece 7, and the upper die assembly 6, the middle die assembly 10 and the lower die assembly 8 perform hot press forming on the powder. In one embodiment, the first driving member 7 and the second driving member 9 are hydraulic cylinders, which can provide high torque and high power output, and have the characteristics of quick response and stable operation, and the hydraulic cylinders are generally composed of pistons and piston rods, and the pistons are pushed or pulled by hydraulic force, so that the movement of the cylinders is realized. To facilitate an understanding of the powder hot pressing process of the present application, the upper die assembly 6, the middle die assembly 10, and the lower die assembly 8 are disclosed as follows:

Referring to fig. 2 and 3, the middle mold assembly 10 includes a heating plate 11, a cooling plate 12, a connecting plate 13, a heating cavity 14, a cooling cavity 15, and a connecting cavity 16; the upper die assembly 6 includes a first molding plate 17, a first guide bar 43, a first guide plate 44, and a first displacement sensor 45, and the lower die assembly 8 includes a second molding plate 18, a second guide bar 46, a second guide plate 47, and a second displacement sensor 48. The heating plate 11 is located on the side of the first forming plate 17 near the upper die assembly 6, the cooling plate 12 is located on the side of the second forming plate 18 near the lower die assembly 8, the connecting plate 13 is located between the heating plate 11 and the cooling plate 12, it should be noted that the heating plate 11, the connecting plate 13 and the cooling plate 12 are fixedly connected, and the heating cavity 14 on the heating plate 11, the connecting cavity 16 on the connecting plate 13 and the cooling cavity 15 on the cooling plate 12 are mutually communicated, and the heating cavity 14, the cooling cavity 15 and the connecting cavity 16 form a cavity for powder supply.

Specifically, the first forming plate 17 is fixed on the side of the first guide plate 44 near the heating plate 11 in the middle mold assembly 10, the second forming plate 18 is fixed on the side of the second guide plate 47 near the cooling plate 12 in the middle mold assembly 10, in order to improve the moving accuracy of the first guide plate 44 and the second guide plate 47, both the first guide plate 43 and the second guide plate 46 are fixed on the frame 1, the first guide plate 44 is sleeved on the first guide plate 43, the second guide plate 47 is sleeved on the second guide plate 46 so that the first guide plate 44 reciprocates along the length direction of the first guide plate 43, the second guide plate 47 is sleeved on the second guide plate 46 so that the second guide plate 47 reciprocates along the length direction of the second guide plate 46, and in order to accurately determine the moving distance of the first guide plate 44 and the second guide plate 47, a first displacement sensor 45 and a second displacement sensor 48 are mounted on the frame 1, and the moving distance of the first guide plate 44 is recorded by the second displacement sensor 48, so that the second guide plate 44 reciprocates along the length direction of the second guide plate 43, and the second guide plate 47, and the position of the cooling cavity 14 in the cooling cavity 15 are accurately heated.

In one embodiment, the displacement sensor includes, but is not limited to, a laser rangefinder, an ultrasonic sensor, an infrared sensor, an encoder, and a capacitive sensor. The laser rangefinder uses the laser beam to measure the reflection time of the object surface to determine the distance, which is calculated by measuring the time the laser beam takes from the transmitter to the object surface and back to the receiver. The ultrasonic sensor emits an ultrasonic pulse and measures its return time to determine the distance between the object and the sensor, which can be determined by calculating the propagation time of the ultrasonic wave and multiplying by the speed of sound. Infrared sensors determine the distance between an object and the sensor by emitting an infrared beam and measuring the extent to which it is reflected or absorbed by the object. Infrared sensors are commonly used for close range measurements. Encoders can determine the position or distance moved of an object by measuring rotational or linear motion, rotary encoders are typically used to measure rotational motion, and linear encoders are used to measure linear motion. The capacitive sensor measures a distance using a change in capacitance between the object and the sensor, and when the object approaches the sensor, the capacitance changes, so that the distance between the object and the sensor can be determined.

The features and connection relationships of the upper die assembly 6, the middle die assembly 10 and the lower die assembly 8 are disclosed above, and for convenience of understanding of the skilled person, as shown in fig. 4, the following description is given of the process flow of powder hot press molding:

As shown in fig. 4, fig. 4 is a state change diagram of a first molding plate 17 and a second molding plate 18, and in fig. 4, a moving track of the first molding plate 17 and the second molding plate 18 in the process of powder hot press molding is shown, firstly, because the cooling cavity 15, the connecting cavity 16 and the heating cavity 14 are in a mutually communicated relationship, in order to prevent powder from leaking out after passing through three cavities due to self weight, the second molding plate 18 in the lower molding member 8 is driven by the second driving member 9 to sequentially pass through the cooling cavity 15 and the connecting cavity 16 and then is embedded in the heating cavity 14 (as shown by a in fig. 4), then, the powder is transported to the heating cavity 14 by the powder feeding mechanism 3, secondly, the first driving member 7 drives the first molding plate 17 in the upper molding plate 6 to be embedded in the heating cavity 14, and a gap between the second molding plate 18 and the first molding plate 17 forms a molding space 19 for powder hot press molding (as shown by b in fig. 4), wherein when the powder hot press molding, the second driving member 9 drives the second molding plate 18 to move towards one side of the cooling cavity 15, the first driving member 7 drives the first molding plate 17 towards one side of the cooling cavity 15, the first driving member 17 towards the cooling side 15, the second driving member 17 towards the other side of the cooling cavity 5, and finally moves the second driving plate 5 towards the lower molding plate 5 to the cooling plate 5 (as shown by the cooling mechanism 5), and finally moves the first driving plate 17 towards the cooling plate 5 side 5 to the cooling plate 5, and finally moves towards the lower molding plate 5 side 5, and is located in the cooling space 19 shown in the cooling space 5, and is located in the cooling space 5, and is shown in the cooling space 5 is shown space 5.

Referring to fig. 5 and 6, the powder feeding mechanism 2 includes a powder cartridge 20, a first discharge hole 21, a powder-stamping shaft 22, a powder-stamping cylinder 23, and a dosing assembly 24, wherein the dosing assembly 24 includes a support plate 25, a dosing plate 26, a dosing cylinder 27, a dosing hole 28, and a second discharge hole 29. The powder box 20 is installed and is used for storing powder in powder feeding mechanism 3 top, and a plurality of first discharge opening 21 are offered in powder box 20 and are close to powder feeding mechanism 3 one side, and in one embodiment, the lid is installed to powder box 20 side that keeps away from first discharge opening 21, after the powder of powder box 20 inner chamber has consumed, the staff can be through opening the mode of lid, with the powder replenishing. The powder stamping shaft 22 penetrates through the powder box 20, so that one end of the powder stamping shaft 22 is fixedly connected with an output shaft of the powder stamping cylinder 23, the powder stamping cylinder 23 is arranged on the adjacent side of the powder box 20, the powder stamping shaft 22 is driven to reciprocate along a straight line through the powder stamping cylinder 23, powder in the powder box 20 flows due to the movement of the powder stamping shaft 22 in the powder box 20, so that the powder is discharged out of the powder box 20 through the first discharging hole 21, the powder is metered through the quantitative assembly 24, the uniformity of products is improved, the weight of each formed powder is uniform, and the powder is transmitted to the powder feeding mechanism 3 after being metered through the quantitative assembly 24. In one embodiment, the longitudinal section of the powder stamping shaft 22 may be fishbone-shaped, and the fishbone-shaped powder stamping shaft 22 may generate more stirring and mixing effects during movement, so that the powder is more uniformly distributed in the powder box 20, local caking or accumulation is avoided, flowability is facilitated, the blocking and blocking phenomena of the powder around the shaft can be reduced by designing the fishbone-shaped powder stamping shaft 22, and the stability and reliability of the system are improved.

Specifically, refine quantitative subassembly 24, backup pad 25 is fixed on frame 1, and quantitative board 26 is installed and is close to powder box 20 one side and with backup pad 25 sliding connection in backup pad 25, and quantitative cylinder 27 is installed on backup pad 25 and is used for driving quantitative board 26 to slide along the straight line, and quantitative hole 28 of a plurality of is seted up on quantitative board 26, and a plurality of second discharge hole 29 is seted up on backup pad 25. The dosing assembly 24 comprises a dosing state and a delivery state, it being noted that whether the dosing aperture 28 and the second outlet aperture 29 are in communication depends on the current state of the dosing assembly 24. In one embodiment, the cross section of the second discharge hole 29 is in a horn shape, and the horn-shaped design can help the powder to flow out more uniformly, so that the situation of blocking or uneven flow possibly occurring in the discharging process is reduced, and the production efficiency is improved. Wherein, when the metering assembly 24 is in the metering state, the metering cylinder 27 drives the metering plate 26 to move so that the metering hole 28 is communicated with the first discharging hole 21, powder enters the metering hole 28 through the first discharging hole 21 (the metering hole 28 is communicated with the first discharging hole 21, and the metering hole 28 is not communicated with the second discharging hole 29), and the volume of the powder is determined by designing the volume of the metering hole 28; when the dosing aperture 28 is filled with powder, the dosing assembly 24 is changed from the dosing state to the delivery state, and the dosing cylinder 27 drives the dosing plate 26 to move so that the dosing aperture 28 communicates with the second discharge aperture 29 (the dosing aperture 28 communicates with the second discharge aperture 29, the dosing aperture 28 does not communicate with the first discharge aperture 21), and the powder is delivered to the powder feeding mechanism 3 through the second discharge aperture 29.

In one embodiment, in order to increase the flow rate of the powder, as shown in fig. 5, a vibrator 49 is mounted on the support plate 25, and the vibrator 49 or vibrator mounted on the support plate 25 can effectively increase the flow rate of the powder, and the vibration can break the static friction force between the powders, so that the powder particles slide more easily, thereby reducing the possibility of agglomeration and improving the fluidity.

Referring to fig. 6 and 7, the powder feeding mechanism 3 includes a first mount 30, a feeding plate 31, a carrier plate 32, a carrier hole 33, a third discharge hole 34, a feeding cylinder 35, and a powder discharging cylinder 36. Wherein, the first fixing frame 30 is fixed on the frame 1, the feeding plate 31 is mounted on the feeding plate 31, the loading plate 32 is mounted on one side of the feeding plate 31 close to the powder feeding mechanism 2, it should be noted that the loading plate 32 is slidably connected with the feeding plate 31, a plurality of loading holes 33 are formed in the loading plate 32, a plurality of third discharging holes 34 are formed in the feeding plate 31, a feeding cylinder 35 is mounted on the first fixing frame 30, the feeding cylinder 35 is used for driving the feeding plate 31 to move along a straight line, a powder discharging cylinder 36 is mounted on the feeding plate 31, and the powder discharging cylinder 36 is used for driving the loading plate 32 to move along a straight line. The powder feeding mechanism 3 includes a loading state and a discharging state, and it is noted that whether or not the loading hole 33 and the third discharging hole 34 are communicated depends on the current state of the powder feeding mechanism 3. Specifically, when the powder feeding mechanism 3 is in the loading state, the feeding cylinder 35 transports the feeding plate 31 to the lower side of the powder feeding mechanism 2, the powder feeding mechanism 2 transports the powder into the loading hole 33, at this time, the loading hole 33 is not communicated with the third discharging hole 34, when the powder is quantitatively transported into the loading hole 33, the state of the powder feeding mechanism 3 is changed from the loading state to the unloading state, when the powder feeding mechanism 3 is in the unloading state, the feeding cylinder 35 transports the feeding plate 31 into the hot press forming mechanism 4, the feeding cylinder 35 drives the loading plate 32 to move along a straight line so that the loading hole 33 is communicated with the third discharging hole 34, and the powder is transported to the hot press forming mechanism 4 through the third discharging hole 34.

Referring to fig. 8, the molding and blanking mechanism 5 includes a second fixing frame 37, a receiving plate 38, a receiving cylinder 39, a scraping plate 40, a scraping cylinder 41, and a finishing box 42. The second fixing frame 37 is arranged on the frame 1 and is positioned on one side adjacent to the hot press forming mechanism 4, the receiving plate 38 is arranged on the second fixing frame 37, the receiving cylinder 39 is arranged on the second fixing frame 37 and is used for driving the receiving plate 38 to move along a straight line, the scraping plate 40 is arranged on the receiving plate 38 and is connected with the scraping plate 38 in a sliding manner, the scraping cylinder 41 is arranged on the scraping cylinder 41 and is used for driving the scraping plate 40 to move along a straight line, and the finished product box 42 is arranged on one side, far away from the second fixing frame 37, of the hot press forming mechanism 4. The molding blanking mechanism 5 comprises a receiving state and a scraping state, when the molding blanking mechanism 5 is in the receiving state, the receiving cylinder 39 drives the receiving plate 38 to move into the hot press molding mechanism 4, the hot press molding mechanism 4 conveys molding powder onto the receiving plate 38, after the molding powder is completely conveyed to the receiving plate 38, the state of the molding blanking mechanism 5 is changed from the receiving state to the scraping state, and the scraping cylinder 41 drives the scraping plate 40 to move along the length direction of the receiving plate 38 so as to convey the molding powder on the receiving plate 38 into the finished product box 42.

The implementation principle of the powder product hot press molding equipment provided by the embodiment of the application is as follows: the powder feeding mechanism 2 conveys powder to the powder feeding mechanism 3, the powder feeding mechanism 3 is used for conveying powder to the hot press forming mechanism 4, the hot press forming mechanism 4 is used for hot press forming of the powder, the forming discharging mechanism 5 is used for conveying formed powder out of the hot press forming mechanism 4, and the specific steps of powder forming are as follows: the second forming plate 18 is firstly inserted into the heating cavity 14 through the second driving member 9, then the powder is conveyed into the heating cavity 14 through the powder feeding mechanism 3, then the first forming plate 17 is inserted into the heating cavity 14 through the first driving member 7, so that a forming space 19 for powder hot press forming is formed by a gap between the first forming plate 17 and the second forming plate 18 (namely, the powder is pressurized through the first forming plate 17 and the second forming plate 18), then the first forming plate 17 and the second forming plate 18 are displaced through the first driving member 7 and the second driving member 9, at the moment, the forming space 19 is positioned in the cooling cavity 15 to cool the formed powder, finally, the second forming plate 18 is carried out of the cooling cavity 15 through the second driving member 9, and the first forming plate 17 is driven by the first driving member 7 to push the formed powder out of the cooling cavity 15, so that the formed component is conveyed into the forming and blanking mechanism 5. The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The powder product hot-press forming equipment comprises a frame (1) and is characterized by further comprising a powder feeding mechanism (2), a powder feeding mechanism (3), a hot-press forming mechanism (4) and a forming blanking mechanism (5) which are arranged on the frame (1), wherein the powder feeding mechanism (2) conveys powder to the powder feeding mechanism (3), the powder feeding mechanism (3) is positioned on one adjacent side of the hot-press forming mechanism (4), the powder feeding mechanism (3) is used for conveying powder to the hot-press forming mechanism (4), the hot-press forming mechanism (4) is used for carrying powder out of the hot-press forming mechanism (4), and the forming blanking mechanism (5) is used for conveying formed powder out of the hot-press forming mechanism (4); wherein, hot briquetting mechanism (4) including set up in last mould subassembly (6) on frame (1), fix on frame (1) and be used for the drive go up first driving piece (7) of mould subassembly (6) up-and-down motion, be located go up lower mould subassembly (8) of mould subassembly (6) below, fix on frame (1) and be used for the drive go on lower mould subassembly (8) second driving piece (9) of up-and-down motion, fix on frame (1) and be located go up mould subassembly (6) with well mould subassembly (10) between lower mould subassembly (8), well mould subassembly (10) are including being close to go up hot plate (11) of mould subassembly (6) one side, be close to cooling plate (12) of one side of lower mould subassembly (8), set up in hot plate (11) with connecting plate (13) between cooling plate (12), a plurality of set up in heating cavity (14) on lower mould subassembly (8), a plurality of set up in cooling plate (12) on cooling plate (15), a plurality of cooling plate (14) are arranged in cooling plate (14), a plurality of cooling plate (13) and a plurality of cavity (16) are connected in order to connect the cavity (14) with each other, the diameter of cavity (14) is connected The diameter of the cooling cavity (15) and the diameter of the connecting cavity (16) are equal;

The second driving piece (9) drives a second forming plate (18) in the lower die assembly (8) to sequentially penetrate through the cooling cavity (15) and the connecting cavity (16) and then to be embedded into the heating cavity (14), the powder feeding mechanism (3) conveys powder to the heating cavity (14), the first driving piece (7) drives a first forming plate (17) in the upper die assembly (6) to be embedded into the heating cavity (14), and a forming space (19) for powder hot press forming is formed by a gap between the second forming plate (18) and the first forming plate (17); when powder is hot-pressed and molded, the second driving piece (9) drives the second molding plate (18) to move towards one side of the cooling cavity (15), and the first driving piece (7) drives the first molding plate (17) to move towards one side of the cooling cavity (15), so that the molding space (19) is positioned in the cooling cavity (15); after the molding powder is cooled, the second molding plate (18) is driven by the second driving piece (9) to be separated from the cooling cavity (15), the molding blanking mechanism (5) is moved to the lower part of the cooling plate (12), and the first molding plate (17) is driven by the first driving piece (7) to move towards one side of the molding blanking mechanism (5) so as to transport the molding powder to the molding blanking mechanism (5).

2. The powder product hot press molding equipment according to claim 1, wherein the powder feeding mechanism (2) comprises a powder box (20) arranged above the powder feeding mechanism (3) and used for storing powder, a plurality of first discharging holes (21) arranged on one side of the powder box (20) close to the powder feeding mechanism (3), a powder stamping shaft (22) penetrating through the powder box (20), a powder stamping cylinder (23) arranged on the adjacent side of the powder box (20) and used for driving the powder stamping shaft (22) to reciprocate along a straight line, and a quantitative assembly (24) arranged between the powder box (20) and the powder feeding mechanism (3), wherein the powder stamping cylinder (23) drives the powder stamping shaft (22) to reciprocate along the straight line so that the powder is transported into the quantitative assembly (24) through the first discharging holes (21), and the quantitative assembly (24) conveys quantitative powder to the powder feeding mechanism (3).

3. A powder product hot press forming apparatus according to claim 2, wherein the dosing assembly (24) comprises a support plate (25) fixed on the frame (1), a dosing plate (26) arranged on one side of the support plate (25) close to the powder box (20) and slidingly connected with the support plate (25), a dosing cylinder (27) arranged on the support plate (25) and used for driving the dosing plate (26) to slide along a straight line, a plurality of dosing holes (28) arranged on the dosing plate (26), and a plurality of second discharging holes (29) arranged on the support plate (25); the dosing assembly (24) comprises a metering state and a conveying state, and when the dosing assembly (24) is in the metering state, the dosing cylinder (27) drives the dosing plate (26) to move so that the dosing hole (28) is communicated with the first discharging hole (21) and the dosing hole (28) is not communicated with the second discharging hole (29); when the quantitative assembly (24) is in the conveying state, the quantitative air cylinder (27) drives the quantitative plate (26) to move so that the quantitative hole (28) is communicated with the second discharging hole (29), the quantitative hole (28) is not communicated with the first discharging hole (21), and powder is conveyed to the powder feeding mechanism (3) through the second discharging hole (29).

4. The powder product hot press forming equipment according to claim 1, wherein the powder feeding mechanism (3) comprises a first fixing frame (30) arranged on the frame (1), a feeding plate (31) arranged on the first fixing frame (30), a material carrying plate (32) arranged on one side of the feeding plate (31) close to the powder feeding mechanism (2) and in sliding connection with the feeding plate (31), a plurality of material carrying holes (33) arranged on the material carrying plate (32), a plurality of third material discharging holes (34) arranged on the feeding plate (31), a feeding cylinder (35) arranged on the first fixing frame (30) and used for driving the feeding plate (31) to move along a straight line, and a powder discharging cylinder (36) arranged on the feeding plate (31) and used for driving the material carrying plate (32) to move along a straight line; the powder feeding mechanism (3) comprises a loading state and a discharging state, when the powder feeding mechanism (3) is in the loading state, the feeding cylinder (35) conveys the feeding plate (31) to the lower part of the powder feeding mechanism (2), the powder feeding mechanism (2) conveys powder into the loading hole (33), and the loading hole (33) is not communicated with the third discharging hole (34); when the powder feeding mechanism (3) is in the discharging state, the feeding cylinder (35) conveys the feeding plate (31) into the hot press forming mechanism (4), the feeding cylinder (35) drives the carrying plate (32) to move along a straight line, so that the carrying hole (33) is communicated with the third discharging hole (34), and powder is conveyed to the hot press forming mechanism (4) through the third discharging hole (34).

5. The powder product hot press forming equipment according to claim 1, wherein the forming and blanking mechanism (5) comprises a second fixing frame (37) arranged on the frame (1) and positioned on one side adjacent to the hot press forming mechanism (4), a receiving plate (38) arranged on the second fixing frame (37), a receiving cylinder (39) arranged on the second fixing frame (37) and used for driving the receiving plate (38) to move along a straight line, a scraping plate (40) arranged on the receiving plate (38) and connected with the receiving plate (38) in a sliding manner, a scraping cylinder (41) arranged on the receiving plate (38) and used for driving the scraping plate (40) to move along a straight line, and a finished product box (42) arranged on one side, away from the second fixing frame (37), of the hot press forming mechanism (4); the forming and blanking mechanism (5) comprises a material receiving state and a scraping state, when the forming and blanking mechanism (5) is in the material receiving state, the material receiving cylinder (39) drives the material receiving plate (38) to move into the hot press forming mechanism (4), and the hot press forming mechanism (4) conveys forming powder onto the material receiving plate (38); when the molding blanking mechanism (5) is in a scraping state, the scraping cylinder (41) drives the scraping plate (40) to move along the length direction of the receiving plate (38) so as to transport molding powder on the receiving plate (38) into a finished product box (42).

6. The powder product hot press molding apparatus according to claim 1, wherein the upper die assembly (6) further comprises a first guide rod (43) disposed on a side of the frame (1) close to the first molding plate (17), a first guide plate (44) sleeved on the first guide rod (43) and reciprocally moving along an axial direction of the first guide rod (43), and a first displacement sensor (45) disposed on the frame (1) and configured to measure a displacement of the first guide plate (44), wherein the first molding plate (17) is fixed on a side of the first guide plate (44) close to the middle die assembly (10).

7. The powder product hot press molding apparatus according to claim 1, wherein the lower die assembly (8) further comprises a second guide bar (46) provided on a side of the frame (1) close to the second molding plate (18), a second guide plate (47) fitted over the second guide bar (46) and reciprocally movable in an axial direction of the second guide bar (46), and a second displacement sensor (48) provided on the frame (1) for measuring a displacement of the second guide plate (47), the second molding plate (18) being fixed on a side of the second guide plate (47) close to the middle die assembly (10).

8. A powder article hot briquetting apparatus as claimed in claim 1, characterised in that the first drive member (7) and the second drive member (9) are hydraulic cylinders.

9. A powder article hot briquetting apparatus as claimed in claim 3, characterised in that the support plate (25) is provided with a vibrator (49).

10. A powder article hot briquetting apparatus as claimed in claim 3, characterised in that the second discharge aperture (29) is of horn-like cross section.