Powder metallurgy pressing apparatus

Abstract

This invention relates to a powder metallurgy pressing device, comprising a platform, a pressing mechanism, and a cleaning mechanism. The platform is provided with a placement hole and a feeding port. The pressing mechanism includes a pressing block that can move up and down relative to the placement hole. The cleaning mechanism includes a first driving mechanism, a blower pipe, an adsorption cylinder, and a sliding brush. After the metallurgical powder inside the placement hole is compressed and dematerialized, the first driving mechanism drives the blower pipe, adsorption cylinder, and sliding brush to approach the surface of the platform and move from the front of the placement hole towards the feeding port. The sliding brush first brushes away most of the metallurgical powder towards the feeding port, which avoids jamming compared to a scraper structure and effectively reduces wear. At the same time, the blower pipe is opened to blow out gas, removing the metallurgical powder left by the sliding brush, which is then adsorbed by the rotating adsorption cylinder. This device can automatically, effectively, and timely clean and collect residual metallurgical powder, solving the problems of metallurgical powder jamming on scrapers and difficulty in effective removal. It facilitates maintenance, ensures the quality of powder metallurgy pressing, and avoids resource waste.

Description

Technical Field

[0001] This invention belongs to the field of powder metallurgy pressing technology, and specifically relates to a powder metallurgy pressing device. Background Technology

[0002] Powder metallurgy is a process technology that produces metallurgical powders or uses metallurgical powders as raw materials, and manufactures metal materials, composite materials, and various types of products through forming and sintering. In the powder metallurgy pressing process, a powder pressing press is used to press the powder into shaped metal modules, allowing workers to obtain the required metal modules. After pressing the metallurgical powder, residue remains on the equipment. Since metallurgical powder is small and dispersed, failure to clean it will affect the quality of subsequent pressing work. To address the problem of high workload and low efficiency in manually cleaning metallurgical powder, existing technologies propose designs that equip the pressing equipment with an automatic cleaning structure. For example, patent CN214321817U discloses a general-purpose powder metallurgy mold, which includes a pushing scraper located on a sliding base plate. When the pressing block completes pressing and the pressing plate moves upward, the scraper is driven by a transmission to clean the residue from the sliding base plate. When the sliding base plate moves to the left, the cleaned waste residue is discharged into a waste residue collection box.

[0003] Its main drawback is that metallurgical powder has the characteristics of high strength and fine grains, which can easily cause the scraper to get stuck. The wear rate is also high, which increases the gap between the scraper and the base plate. The cleaning effect tends to drop sharply with the increase of usage time. The metallurgical powder adhering to the surface to be cleaned is difficult to remove effectively, which is not conducive to maintenance and cannot meet the application requirements.

[0004] Secondly, the failure to separate and recover the metallurgical powder on the pressed product during the removal of residual metallurgical powder easily leads to resource waste.

[0005] In addition, the lack of a proper detection structure can easily lead to incomplete pressing or untimely cleaning after pressing: if cleaning is done too early, the pressed product has not yet left the pressing slot, and the pressing product will collide with the pressing equipment during cleaning; if cleaning is done too late, the pressing block will leave the cleaning area, making it difficult to clean the surface of the pressing block, thereby increasing the failure rate and affecting continuous operation. Summary of the Invention

[0006] The present invention aims to at least partially solve one of the above-mentioned technical problems. The present invention provides a powder metallurgy pressing device that can automatically, effectively and timely clean and collect residual metallurgical powder, which facilitates maintenance and ensures the quality of powder metallurgy pressing, and avoids resource waste.

[0007] The technical solution adopted by this invention to solve its technical problem is:

[0008] A powder metallurgy pressing device includes a platform, a pressing mechanism, and a cleaning mechanism. The platform is provided with a placement hole and a discharge port. The pressing mechanism includes a pressing block that can move up and down relative to the placement hole. The cleaning mechanism includes a first driving mechanism, a blower pipe, an adsorption cylinder, and a sliding brush arranged sequentially from the placement hole to the discharge port. The first driving mechanism is used to drive the blower pipe, the adsorption cylinder, and the sliding brush to move close to the surface of the platform and reciprocate between the placement hole and the discharge port. The adsorption cylinder can rotate perpendicular to the direction of movement of the adsorption cylinder.

[0009] Furthermore, the pressing mechanism includes a second drive mechanism, a slide bar, and a slide plate. The second drive mechanism is used to drive the slide plate to rise and fall. The slide bar passes vertically through the slide plate, and the pressing block is connected to the slide plate.

[0010] Furthermore, the platform is provided with slide rails on both sides of the placement hole, and the first drive mechanism includes an electric push rod and a bracket connected to the electric push rod. The two ends of the bracket are slidably engaged with the slide rails, and the blower pipe and the slide brush are mounted on the bracket.

[0011] Furthermore, the slide brush slides in conjunction with the slide rail.

[0012] Furthermore, the blower duct includes a main pipe and several branch pipes, the main pipe is connected to a blower, and the outlets of the several branch pipes are inclined downwards.

[0013] Furthermore, the skateboard brush is provided with a notch for setting an adsorption cylinder, the adsorption cylinder is provided with a magnetic surface, and a round rod connected to the skateboard brush is provided inside the adsorption cylinder, the round rod being perpendicular to the moving direction of the adsorption cylinder.

[0014] Furthermore, a top component capable of lifting and moving is provided inside the placement hole, and a third driving mechanism for driving the top component to rise is provided between the top component and the platform.

[0015] Furthermore, the platform includes a controller. The platform is equipped with a first sensor and a second sensor. The first sensor is used to detect the signal of the top component descending to the designated position and transmit it to the controller. The second sensor is used to detect the signal of the top component rising to the designated position and transmit it to the controller. The controller is used to control the pressing block to stop descending based on the descending signal and to control the pressing block to stop rising based on the rising signal, while simultaneously driving the cleaning mechanism to perform cleaning operations.

[0016] Furthermore, the platform includes a platform plate and a base, the placement hole is disposed on the platform plate, the platform plate is provided with a through hole connected to the placement hole, the base is provided with a groove, the top member includes a top block, a top rod and a pressure plate, the top block is slidably engaged with the placement hole, one end of the top rod is connected to the top block, the other end of the top rod extends through the through hole into the groove, and the pressure plate is disposed in the groove and connected to the top rod;

[0017] The third driving mechanism includes a helical spring and a nitrogen spring disposed between the pressure plate and the base;

[0018] The first sensor is used to detect the descending top rod, and the second sensor is used to detect the rising pressure plate;

[0019] The controller is used to control the extension of the nitrogen spring based on the signal indicating that the descent has reached the designated position.

[0020] Furthermore, a fixing frame is provided behind the discharge port, the fixing frame is provided with a filter layer and a collection box, the collection box is located below the filter layer and is detachably connected to the fixing frame.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) The metallurgical powder is placed into the placement hole. The pressing block of the pressing mechanism moves down into the placement hole to compress and remove the metallurgical powder inside the placement hole. Then, the first drive mechanism of the cleaning mechanism drives the blower pipe, adsorption cylinder and sliding brush to approach the surface of the platform and move from the front of the placement hole towards the lower feed port. The sliding brush first brushes away most of the metallurgical powder on the surface of the platform towards the lower feed port. Compared with the scraper structure, it can avoid jamming and effectively reduce wear. At the same time, the blower pipe is turned on to blow out gas to blow away the metallurgical powder left by the sliding brush. The adsorption cylinder rotates to adsorb the blown metallurgical powder, which can automatically and effectively clean the residual metallurgical powder, solve the problem of metallurgical powder jamming on the scraper and difficulty in effective removal, reduce the workload of the staff, facilitate maintenance and ensure the quality of powder metallurgy pressing, and meet the application requirements.

[0023] (2) The sliding brush brushes the pressed product and metallurgical powder from the feed port to the top of the fixed frame. The metallurgical powder is first filtered by the filter layer. The filtered metallurgical powder finally enters the inside of the collection box, which can separate and recycle the metallurgical powder on the pressed product, thereby avoiding the waste of resources.

[0024] (3) The first sensor and the second sensor form a positioning detection structure. The controller obtains the descent positioning signal from the first sensor and uses it as the execution signal of the cylinder to control the pressing block to stop descending, which can ensure that the pressing is in place. The controller controls the pressing block to stop rising according to the rising positioning signal. At this time, the pressed product is completely removed from the placement hole and the pressing block has not yet left the cleaning area. The cleaning mechanism can be driven to perform cleaning operations in a timely manner to avoid premature cleaning and damage to the pressing product and the platform before the pressing product has left the placement hole. It also avoids late cleaning and failure to clean the pressing block, which moves upward and loses contact with the sliding brush. This reduces the failure rate and facilitates continuous operation. Attached Figure Description

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the split structure of one embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the pressing mechanism structure according to one embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the blower duct structure according to one embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the adsorption cylinder and sliding brush structure according to one embodiment of the present invention;

[0031] Figure 6 This is a cross-sectional structural schematic diagram of an embodiment of the present invention;

[0032] Figure 7 This is an exploded schematic diagram of a platform according to an embodiment of the present invention;

[0033] Figure 8 This is a top view of the platform structure according to an embodiment of the present invention;

[0034] Figure 9 yes Figure 8 Schematic diagram of the change in cross-sectional state along the AA direction;

[0035] The diagram shows: platform 1, placement hole 101, discharge port 102, platform 103, base 104, through hole 105, groove 106, first groove 1061, second groove 1062, third groove 1063, connecting hole 107, first mounting hole 108, second mounting hole 109, third mounting hole 110.

[0036] Pressing mechanism 2, pressing block 201, second drive mechanism 202, slide bar 203, slide plate 204, support frame 205;

[0037] Cleaning mechanism 3, first drive mechanism 301, blower pipe 302, main pipe 3021, air distribution pipe 3022, adsorption cylinder 303, magnetic surface 3031, round rod 3032, sliding brush 304, notch 3041, moving plate 305, connecting rod 306.

[0038] 4. Slide rail, 5. Arc block, 6. Blower, 7. Top piece, 701. Top block, 702. Top rod, 703.

[0039] First sensor 8, third drive mechanism 9, helical spring 901, nitrogen spring 902;

[0040] Second sensor 10, fixed frame 11, filter layer 12, collection box 13, placement groove 111, metallurgical powder 14, pressed product 15. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] like Figure 1-9As shown, this is a preferred embodiment of the powder metallurgy pressing equipment of the present invention. The equipment includes a platform, a pressing mechanism, and a cleaning mechanism. The platform is provided with a placement hole and a discharge port. The pressing mechanism includes a pressing block that can move up and down relative to the placement hole. The cleaning mechanism includes a first driving mechanism, a blower pipe, an adsorption cylinder, and a sliding brush arranged sequentially from the placement hole to the discharge port. The first driving mechanism is used to drive the blower pipe, the adsorption cylinder, and the sliding brush to move close to the surface of the platform and reciprocate between the placement hole and the discharge port. The adsorption cylinder can rotate perpendicular to the direction of movement of the adsorption cylinder.

[0045] To address the problem of metallurgical powders being prone to jamming on scrapers and difficult to effectively remove due to their high strength and fine grains, the aforementioned powder metallurgy pressing equipment operates as follows: Workers place the metallurgical powder into the placement hole, and the pressing mechanism's pressing block descends and moves towards the placement hole, compressing the powder inside. After compression, the pressed product is obtained and removed from the placement hole. The first drive mechanism of the cleaning mechanism then drives the blower pipe, adsorption cylinder, and sliding brush close to the platform surface, moving them from the front of the placement hole towards the lower feed inlet. Simultaneously, the blower pipe is activated to blow out gas.

[0046] Since the blower duct, adsorption cylinder, and sliding brush are arranged sequentially from the placement hole to the discharge port, the sliding brush can first remove most of the metallurgical powder from the surface of the platform towards the discharge port. The flexible bristles of the sliding brush, compared to a scraper structure, prevent jamming and effectively reduce wear, avoiding a sharp decline in cleaning effectiveness after long-term operation. Then, under the exhaust effect of the blower duct, a small amount of metallurgical powder remaining on the platform surface after the sliding brush operation is blown towards the adsorption cylinder. The adsorption cylinder, under the action of wind or friction with the platform, can rotate in a direction perpendicular to the direction of movement, adsorbing the blown metallurgical powder onto it. This solves the problem of metallurgical powder adhesion and stubborn adsorption on the platform surface, achieving effective removal. After cleaning, the first drive mechanism moves the blower duct, adsorption cylinder, and sliding brush from the discharge port towards the front of the placement hole to reset, allowing for restarting. This facilitates maintenance, reduces manual cleaning by personnel, and thus reduces workload, meeting application requirements.

[0047] like Figure 1-9As shown, this is a preferred embodiment of the powder metallurgy pressing equipment of the present invention. The equipment includes a platform 1, a pressing mechanism 2, and a cleaning mechanism 3. The platform 1 is provided with a placement hole 101 and a discharge port 102. The pressing mechanism 2 includes a pressing block 201 that can move up and down relative to the placement hole 101. The cleaning mechanism 3 includes a first driving mechanism 301, a blower pipe 302, an adsorption cylinder 303, and a sliding brush 304 arranged sequentially from the placement hole 101 to the discharge port 102. The first driving mechanism 301 is used to drive the blower pipe 302, the adsorption cylinder 303, and the sliding brush 304 to move close to the surface of the platform 1 and reciprocate between the placement hole 101 and the discharge port 102. The adsorption cylinder 303 can rotate perpendicular to the direction of movement of the adsorption cylinder 303.

[0048] To address the problem of metallurgical powder easily getting stuck on the scraper and being difficult to remove effectively due to its high strength and fine grains, the above-mentioned powder metallurgy pressing equipment is operated as follows: the operator places the metallurgical powder into the placement hole 101, and the pressing block 201 of the pressing mechanism 2 moves downward towards the placement hole 101 to compress the metallurgical powder inside the placement hole 101. After compression, the pressed product is obtained and removed from the placement hole 101. The first drive mechanism 301 of the cleaning mechanism 3 drives the blower pipe 302, the adsorption cylinder 303 and the sliding brush 304 to approach the surface of the platform 1 and move from the front of the placement hole 101 towards the lower feed port 102. At the same time, the blower pipe 302 is turned on to blow out gas.

[0049] Since the blower duct 302, the adsorption cylinder 303, and the sliding brush 304 are arranged sequentially from the placement hole 101 to the discharge port 102, the sliding brush 304 can first brush away most of the metallurgical powder on the surface of the platform 1 towards the discharge port 102. The flexibility of the bristles of the sliding brush 304, compared to a scraper structure, prevents jamming and effectively reduces wear, avoiding a sharp decline in cleaning effect after long-term operation. Then, under the exhaust effect of the blower duct 302, a small portion of the metallurgical powder remaining on the surface of the platform 1 after the sliding brush 304 operation is blown towards the adsorption cylinder 303. Under the action of wind or friction with the platform 1, it can rotate in the direction perpendicular to the direction of movement, adsorbing the blown metallurgical powder onto the adsorption cylinder 303. This solves the problem of metallurgical powder adhering and stubbornly adsorbing on the surface of the platform 1, thereby achieving effective removal. After removal, the first drive mechanism 301 drives the blower pipe 302, the adsorption cylinder 303 and the slide brush 304 to move from the discharge port 102 to the front of the placement hole 101 to reset, so that it can work again, facilitate maintenance, reduce the need for manual cleaning of the equipment by the staff, thereby reducing the workload of the staff and meeting the application requirements.

[0050] like Figure 3As shown, the pressing mechanism 2 further includes a second driving mechanism 202, a slide bar 203, and a slide plate 204. The second driving mechanism 202 is used to drive the slide plate 204 to rise and fall. The slide bar 203 passes vertically through the slide plate 204. The pressing block 201 is connected to the slide plate 204. When the slide plate 204 is driven to rise and fall by the second driving mechanism 202, the sliding cooperation between the slide bar 203 and the slide plate 204 provides guidance, further improving the stability of the pressing block 201's rising and falling operation.

[0051] Furthermore, the pressing mechanism 2 includes a support frame 205, and the second driving mechanism 202 is a cylinder. The cylinder and the slide rod 203 are mounted on the support frame 205. The cylinder rod is connected to the slide plate 204. The support frame 205 can adopt a portal structure. There are two slide rods 203, which are located on both sides of the cylinder. The extension and retraction of the cylinder rod drives the slide plate 204 to move up and down under the guidance of the sliding cooperation with the vertical slide rod 203, thereby quickly driving the pressing block 201 to move up and down.

[0052] Furthermore, the platform 1 is provided with slide rails 4 on both sides of the placement hole 101. The first drive mechanism 301 includes an electric push rod and a bracket connected to the electric push rod. The two ends of the bracket are slidably engaged with the slide rails 4. The blower pipe 302 and the slide brush 304 are mounted on the bracket. The electric push rod drives the bracket to move stably under the guidance of the sliding engagement with the slide rails 4, thereby driving the blower pipe 302, the adsorption cylinder 303 and the slide brush 304 to move back and forth, thereby improving stability.

[0053] Furthermore, the platform 1 is provided with an arc-shaped block 5, and the electric push rods can be two parallel ones. One end of the electric push rod is connected to the arc-shaped block 5. The bracket includes a movable plate 305 and a connecting rod 306. The movable plate 305 is connected to the other end of the electric push plate. The blower pipe 302 is installed on the movable plate 305. The connecting plate connects the movable plate 305 and the sliding brush 304. The structure is simple and easy to install.

[0054] Furthermore, the sliding brush 304 is slidably engaged with the slide rail 4, and the stability of the cleaning operation can be further improved by the sliding brush 304 engaging with the slide rail 4 when it moves.

[0055] Furthermore, the blower duct 302 includes a main pipe 3021 and several branch pipes 3022. The main pipe 3021 is connected to a blower 6. The outlets of the branch pipes 3022 are inclined downwards. The blower 6 controls the opening and closing of the exhaust of the blower duct 302. When the blower 6 is started, the power supply of the blower 6 is activated during the movement of the slide brush 304. The blower 6 blows out gas and discharges the gas through the branch pipes 3022, so that the discharged gas is sprayed downwards at an angle to blow away the metallurgical powder left by the slide brush 304. Furthermore, by uniformly spraying the gas downwards at an angle, the metallurgical powder removal rate and cleaning uniformity are improved.

[0056] Furthermore, the skateboard brush 304 is provided with a notch 3041 for setting up an adsorption cylinder 303. The adsorption cylinder 303 is provided with a magnetic surface 3031. Inside the adsorption cylinder 303, there is a round rod 3032 connected to the skateboard brush 304. The round rod 3032 is perpendicular to the moving direction of the adsorption cylinder 303. The adsorption cylinder 303 can be integrated into the skateboard brush 304 by the notch 3041, resulting in a compact structure. At the same time, the skateboard brush 304 blocks the dust caused by excessive wind. When the adsorption cylinder 303 rotates around the round rod 3032 relative to the skateboard brush 304, the magnetic surface 3031 can further improve the adsorption and cleaning effect.

[0057] like Figure 6-9 As shown, the placement hole 101 is further provided with a top member 7 that can be raised and lowered. A third driving mechanism 9 for driving the top member 7 to rise is provided between the top member 7 and the platform body 1. During pressing, the top rod 702 descends. After pressing, the top member 7 is driven to rise by the third driving mechanism 9, which can push the pressed product formed in the placement hole 101 out of the placement hole 101, further facilitating automatic unloading.

[0058] Furthermore, including a controller, the platform 1 is provided with a first sensor 8 and a second sensor 10. The first sensor 8 is used to detect the signal of the top piece 7 descending to the position and transmit it to the controller. The second sensor 10 is used to detect the signal of the top piece 7 rising to the position and transmit it to the controller. The controller is used to control the pressing block 201 to stop descending according to the descending position signal, and to control the pressing block to stop rising according to the rising position signal, while driving the cleaning mechanism 3 to perform cleaning operations.

[0059] The controller is electrically connected to the air supply system of the cylinder, the electric push rod, and the blower 6. The first sensor 8 and the second sensor 10 form a positioning detection structure. The controller obtains the descent positioning signal from the first sensor 8 and uses it as the execution signal of the cylinder to control the pressing block 201 to stop descending, which can ensure that the pressing is in place.

[0060] The controller receives a rising position signal from the second sensor 10, which serves as the execution signal for the cylinder and electric push rod. This signals the mounting block to stop rising. Simultaneously, the electric push rod drives the blower pipe 302, the suction cylinder 303, and the sliding brush 304 to move and perform the cleaning operation. At this point, the pressed product is completely detached from the placement hole 101, but the pressing block 201 is still within the cleaning area, allowing for timely cleaning. The sliding brush 304 can clean the surface of the platform 1 from below and push the pressed product along the feeding port 102. The sliding brush 304 can also clean the lower surface of the pressing block 201 from above, preventing metallurgical powder from adhering to the surface of the pressing block 201. This avoids premature cleaning before the pressed product has detached from the placement hole 101, which could cause collision damage between the pressed product and the platform 1. It also avoids delayed cleaning where the pressing block moves upward and loses contact with the sliding brush 304, making cleaning impossible. This reduces the failure rate and facilitates continuous operation.

[0061] Furthermore, the platform 1 includes a platform plate 103 and a base 104. The placement hole 101 is provided on the platform plate 103. The platform plate 103 is provided with a through hole 105 connected to the placement hole 101. The base 104 is provided with a groove 106. The top member 7 includes a top block 701, a top rod 702 and a pressure plate 703. The top block 701 is slidably engaged with the placement hole 101. One end of the top rod 702 is connected to the top block 701. The other end of the top rod 702 extends through the through hole 105 into the groove 106. The pressure plate 703 is provided in the groove 106 and is connected to the top rod 702.

[0062] The third drive mechanism 9 includes a helical spring 901 and a nitrogen spring 902 disposed between the pressure plate 703 and the base 104;

[0063] The first sensor 8 is used to detect the descending top rod 702, and the second sensor 10 is used to detect the rising pressure plate 703;

[0064] The controller is used to control the extension of the nitrogen spring 902 according to the signal indicating that the descent has reached the designated position.

[0065] Furthermore, the platform 103 and the base 104 are provided with connecting holes 107, which can be used to connect the platform 103 and the base 104 with bolts to achieve a detachable connection, which facilitates the installation of the top piece 7 and the third drive mechanism 9. The pressure block and the top rod 702 can be installed with threaded engagement.

[0066] Furthermore, the groove 106 includes a first groove 1061, a second groove 1062, and a third groove 1063. The first groove 1061 and the second groove 1062 are located below the through hole 105. The helical spring 901 is sleeved outside the push rod 702 and located inside the first groove 1061. The bottom of the push rod 702 extends into the second groove 1062. A vertical first mounting hole 108 is connected to the bottom side of the second groove 1062. The first sensor 8 is disposed in the first mounting hole 108. The third groove 1063 is laterally connected to the first groove 1061. The third groove 1063 is connected to the second mounting hole 109 and the third mounting hole 110. The second mounting hole 109 is vertically located above the side of the third groove 1063. The second sensor 10 is disposed in the second mounting hole 109. One end of the pressure plate 703 extends into the third groove 1063. The nitrogen spring 902 is located below the pressure plate 703 in the third groove 1063. The lead wire of the nitrogen spring 902 is led out from the third mounting hole 110.

[0067] During installation, the top rod 702 is passed through the through hole 105 of the platform 103, and the pressure plate 703 is connected to the top rod 702. The helical spring 901 is sleeved on the outside of the top rod 702 below the pressure plate 703. The first sensor 8, the second sensor 10, and the nitrogen spring 902 are respectively installed in the base 104. The first sensor 8 and the second sensor 10 can be proximity switches. The pressure plate 703 corresponds to the third groove 1063, and the bottom of the top rod 702 is inserted into the second groove 1062. The base 104 is connected to the platform 103 to achieve quick and easy disassembly and installation.

[0068] At work, such as Figure 9 As shown in Figure a, in the initial state, the pre-compressed helical spring 901 lifts the entire pressing component through the elastic support plate 703. The top of the plate 703 contacts the bottom of the platform 103 for limiting, and the surface of the top block 701 is flush with the surface of the platform 103.

[0069] like Figure 9 As shown in Figure b, after metallurgical powder is added above the placement hole 101, the top piece 7 is pressed down under the gravity of the metallurgical powder. The top block 701 slides along the placement hole 101, the top rod 702 slides along the through hole 105 and the second groove 1062, and the pressure plate 703 slides along the third groove 1063. The guide descends stably, compressing the helical spring 901. Figure 9 a transformation to Figure 9 b state.

[0070] like Figure 9As shown in Figure c, when the pressing block 201 descends into the placement hole 101 to perform the pressing operation, it drives the top member 7 to continue descending, further compressing the spiral spring 901, until the bottom of the top rod 702 descends to the sensing area of ​​the first sensor 8. The first sensor 8 detects that the top rod 702 has descended to the correct position, obtains a descent completion signal, and transmits it to the controller, indicating that the pressing is complete. The controller, based on the descent completion signal, controls the pressing block 201 to stop descending further. Figure 9 b transforms to Figure 9 c state.

[0071] like Figure 9 As shown in diagram d, the controller controls the extension of the nitrogen spring 902 based on the descent signal. When the pressing block 201 rises, the nitrogen spring 902 and the helical spring 901 elastically support the pressure plate 703, driving the pressure plate 703, the push rod 702, and the top block 701 to rise until the pressing block reaches the sensing area of ​​the second sensor 10. The second sensor 10 detects the pressing block has risen to the correct position. At this time, the top block 701 pushes the pressed product out of the placement hole 101. The pressed product is completely removed from the placement hole 101, but the pressing block 201 has not yet left the cleaning area. Figure 9 c changes to Figure 9 In state d, the control block stops rising according to the rising position signal, and at the same time drives the cleaning mechanism 3 to perform cleaning operations, which can be carried out in a timely manner.

[0072] After the cleaning operation, the controller resets the cleaning mechanism 3. Figure 9 d transform to Figure 9 The system returns to its initial state (state A) for resuming operation, enabling rapid and convenient timely cleaning through the automatic unloading and positioning detection structure.

[0073] Furthermore, a fixed frame 11 is provided behind the feed port 102. The fixed frame 11 is provided with a filter layer 12 and a collection box 13. The collection box 13 is located below the filter layer 12 and is detachably connected to the fixed frame 11. After the sliding brush 304 brushes the pressed product and metallurgical powder from the feed port 102 to the top of the fixed frame 11, the filter layer 12 first filters the metallurgical powder. The filtered metallurgical powder finally enters the interior of the collection box 13, thereby filtering and collecting the metallurgical powder. This allows for the separation and recycling of the metallurgical powder on the pressed product, thus avoiding resource waste.

[0074] Furthermore, the filter layer 12 adopts a mesh structure, the fixing frame 11 is provided with a side-opening placement groove 111, the collection box 13 is slidably engaged with the placement groove 111, the collection box 13 opens upward, and after the collection box 13 is placed in the placement groove 111, it can collect the metallurgical powder filtered by the filter layer 12. After the collection box 13 is slidably pulled out along the opening of the placement groove 111, the metallurgical powder accumulated in the collection box 13 can be poured out, and the empty box can be put back, which is convenient for operation.

[0075] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A powder metallurgical pressing apparatus, characterized in that, The system includes a platform (1), a pressing mechanism (2), a cleaning mechanism (3), and a controller. The platform (1) has a placement hole (101) and a discharge port (102). The pressing mechanism (2) includes a pressing block (201) that can move up and down relative to the placement hole (101). The cleaning mechanism (3) includes a first driving mechanism (301), a blower pipe (302), an adsorption cylinder (303), and a sliding brush (304) arranged sequentially from the placement hole (101) to the discharge port (102). The device is used to drive the blower pipe (302), the adsorption cylinder (303) and the slide brush (304) to move back and forth between the placement hole (101) and the discharge port (102) near the surface of the platform (1). The adsorption cylinder (303) can rotate perpendicular to the direction of movement of the adsorption cylinder (303). The adsorption cylinder (303) is provided with a magnetic surface (3031). The blower pipe (302) includes a main pipe (3021) and several air distribution pipes (3022). The outlets of the several air distribution pipes (3022) are inclined downward. The placement hole (101) is provided with a top piece (7) that can be raised and lowered, and a third drive mechanism (9) for driving the top piece (7) to rise is provided between the top piece (7) and the platform (1). The platform (1) includes a platform plate (103) and a base (104). The placement hole (101) is provided on the platform plate (103). The platform plate (103) is provided with a through hole (105) connected to the placement hole (101). The base (104) is provided with a groove (106). The top member (7) includes a top block (701), a top rod (702), and a pressure plate (703). The top block (701) is slidably engaged with the placement hole (101). One end of the top rod (702) is connected to the top block (701), and the other end of the top rod (702) extends through the through hole (105) into the groove (106). The pressure plate (703) is provided in the groove (106) and connected to the top rod (702). The third driving mechanism (9) includes a helical spring (901) and a nitrogen spring (902) provided between the pressure plate (703) and the base (104). The platform (1) is equipped with a first sensor (8) and a second sensor (10). The first sensor (8) is used to detect the descending top rod (702), obtain the signal that the top part (7) has descended to the position and transmit it to the controller. The second sensor (10) is used to detect the rising pressure plate (703), obtain the signal that the top part (7) has risen to the position and transmit it to the controller. The controller is used to control the pressing block (201) to stop descending and control the nitrogen spring (902) to extend according to the descent signal, and to control the pressing block (201) to stop rising according to the ascent signal, while driving the cleaning mechanism (3) to perform cleaning operations. The groove includes a first groove, a second groove, and a third groove. The first and second grooves are located below the through hole. The helical spring is sleeved outside the top rod and located inside the first groove. The bottom of the top rod extends into the second groove. The bottom side of the second groove is connected to a first mounting hole perpendicular to the second groove. The first sensor is located inside the first mounting hole. The third groove is connected to the side of the first groove. The third groove is connected to a second mounting hole and a third mounting hole. The second mounting hole is perpendicular to the third groove and is located above the side of the third groove. The second sensor is located inside the second mounting hole. One end of the pressure plate extends into the third groove. The nitrogen spring is located below the pressure plate inside the third groove. The lead wire of the nitrogen spring is led out from the third mounting hole.

2. A powder metallurgy pressing apparatus according to claim 1, wherein The pressing mechanism (2) includes a second driving mechanism (202), a slide bar (203) and a slide plate (204). The second driving mechanism (202) is used to drive the slide plate (204) to rise and fall. The slide bar (203) passes vertically through the slide plate (204). The pressing block (201) is connected to the slide plate (204).

3. A powder metallurgy pressing apparatus according to claim 1, wherein The platform (1) is provided with slide rails (4) on both sides of the placement hole (101). The first drive mechanism (301) includes an electric push rod and a bracket connected to the electric push rod. The two ends of the bracket are slidably engaged with the slide rails (4). The blower pipe (302) and the slide brush (304) are arranged on the bracket.

4. A powder metallurgy pressing apparatus according to claim 3, wherein The slide brush (304) slides in conjunction with the slide rail (4).

5. A powder metallurgy pressing apparatus according to claim 1, wherein The main pipe (3021) is connected to a blower (6).

6. A powder metallurgy pressing apparatus according to claim 1, wherein The slide brush (304) is provided with a notch (3041) for setting an adsorption cylinder (303). The adsorption cylinder (303) is provided with a round rod (3032) connected to the slide brush (304). The round rod (3032) is perpendicular to the moving direction of the adsorption cylinder (303).

7. A powder metallurgy pressing apparatus according to any one of claims 1 to 6, wherein A fixed frame (11) is provided behind the discharge port (102). The fixed frame (11) is provided with a filter layer (12) and a collection box (13). The collection box (13) is located below the filter layer (12) and is detachably connected to the fixed frame (11).

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