Automatic material taking and discharging device of metal powder injection molding machine

Abstract

The invention discloses an automatic material taking and discharging device of a metal powder injection molding machine, and relates to the technical field of metal injection molding, the automatic material taking and discharging device comprises a motor base, an output shaft of the motor base is connected with a vertical rod, the upper end of the vertical rod is connected with a cross beam, and a hydraulic cylinder is installed on the upper portion of one side of the cross beam; a manipulator is connected to the position, located below the cross beam, of an output shaft of the hydraulic cylinder, the manipulator comprises a shell base, a servo motor is installed on the upper portion of the shell base, the output shaft of the hydraulic cylinder is connected to the upper portion of the servo motor, and a screw is connected to the position, located in the shell base, of the output shaft of the servo motor. According to the automatic material taking and discharging device of the metal powder injection molding machine, the servo motor drives the screw rod and the threaded sleeve to be linked, so that a workpiece is accurately adsorbed by the suction cup, meanwhile, the supporting plate gradually moves towards the bottom of the workpiece in the upward moving process of the threaded sleeve, and finally the bottom of the workpiece is supported; by means of the design, the workpieces are effectively prevented from falling off in the sucking and hoisting processes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal injection molding, in particular to an automatic material taking and discharging device of a metal powder injection molding machine. BACKGROUND

[0002] Metal powder injection molding technology, as an advanced powder metallurgy forming method, is widely used in the manufacture of high-precision and complex-shaped metal parts. This technology mixes metal powder with binder, injects it into the mold for forming, and then goes through processes such as debinding and sintering to finally obtain the finished product. In this process, the automatic material taking and discharging device is one of the key equipment, responsible for taking the formed workpiece out of the mold and ensuring the continuity and efficiency of the production process. The traditional automatic material taking and discharging device usually uses mechanical hands, suction cups and other components to achieve the extraction and placement of workpieces through servo motors and control systems.

[0003] The existing automatic material taking and discharging device has some significant defects in actual application. First, during the material taking process, due to the inaccuracy of the cooperation between the mechanical hand and the suction cup, the workpiece is prone to falling during suction and lifting, which not only affects the production efficiency, but also may cause workpiece damage and increase the scrap rate. Second, after taking the material, there are often some iron filings left in the mold, which are difficult to completely remove, affecting the cleanliness of the mold and thus the quality and precision of the next forming operation. The iron filings attached in the mold not only shorten the service life of the mold, but also may cause defects on the surface of the formed parts, reducing the qualification rate of the products. Therefore, it is of great practical significance and application value to develop an automatic material taking and discharging device that can effectively solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an automatic material taking and discharging device of a metal powder injection molding machine, which solves the two defects of the existing automatic material taking and discharging device, i.e. the workpiece is prone to falling and the iron filings are left in the mold, affecting the production efficiency and product quality.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: an automatic material taking and discharging device of a metal powder injection molding machine, comprising a motor base, the output shaft of the motor base is connected with a vertical rod, the upper end of the vertical rod is connected with a cross beam, a hydraulic cylinder is installed on the upper part of one side of the cross beam, the output shaft of the hydraulic cylinder is connected with a mechanical hand at the lower position of the cross beam, the mechanical hand comprises a shell base, a servo motor is installed on the upper part of the shell base, the output shaft of the servo motor is connected to the upper part of the servo motor, the output shaft of the servo motor is connected with a screw rod at the inner position of the shell base, the outer part of the screw rod is threadedly connected with a threaded sleeve matched therewith, the lower end of the threaded sleeve longitudinally slides through the inside bottom of the shell base and is connected with a suction head, and a material taking auxiliary mechanism is arranged on both sides of the shell base.

[0006] The material taking auxiliary mechanism comprises a limiting rod connected to one side of the upper end of the threaded sleeve, the other end of the limiting rod is hinged with a connecting rod, the other end of the connecting rod passes through the inner side wall of the shell seat and is hinged with a connecting rod, the lower end of the connecting rod is connected with a rotating plate, the upper side of the rotating plate is hinged at the lower edge of one side of the shell seat, and the outer part of the rotating plate is longitudinally sleeved with a supporting plate, the supporting plate is located below the adsorption head, and the material taking auxiliary mechanism further comprises an adjusting part for driving the longitudinal displacement of the supporting plate.

[0007] The three-dimensional motion mechanism composed of the motor base, the vertical rod and the cross beam cooperates with the manipulator driven by the hydraulic cylinder to realize multi-degree-of-freedom motion. The core design of the manipulator is the screw-threaded sleeve transmission mechanism driven by the servo motor, which not only controls the lifting motion of the adsorption head, but also realizes the workpiece lifting function through the linkage design of the material taking auxiliary mechanism. It is particularly worth noting that the mechanical linkage relationship between the material taking auxiliary mechanism and the threaded sleeve, through the transmission of the limiting rod, the connecting rod and the connecting rod, converts the linear motion of the threaded sleeve into the rotation of the rotating plate, and finally realizes the lifting and angle adjustment of the supporting plate. This mechanical linkage design avoids the use of additional driving devices, and improves the system reliability.

[0008] Preferably, the shell seat is provided with a limiting groove on both sides, and the connecting rod slides through the limiting groove. By providing the limiting groove on both sides of the shell seat, the movement of the connecting rod is accurately guided. This design has a dual effect: on the one hand, it ensures that the connecting rod maintains a predetermined trajectory during movement and avoids deviation; on the other hand, the structural parameters of the limiting groove can adjust the movement range of the connecting rod, thereby controlling the rotation angle of the rotating plate.

[0009] Preferably, the adsorption head comprises a suction cup connected to the lower end of the threaded sleeve, and a vacuum pump is mounted on the upper side of one side of the suction cup. This compact design directly integrates the vacuum pump above the suction cup, which not only shortens the length of the vacuum pipeline and improves the adsorption response speed, but also avoids the interference of external pipelines. The direct connection of the suction cup and the threaded sleeve ensures the shortest force transmission path and improves the position control accuracy. The vacuum pump is installed on the upper side of one side of the suction cup, which is convenient for maintenance and repair, and does not affect the working space of the suction cup, which reflects good engineering design consideration.

[0010] Preferably, the adjusting part comprises a guide groove arranged on one side of the rotating plate and a stepping motor mounted on the bottom of the rotating plate, a screw rod is rotatably arranged in the guide groove, the screw rod is driven by the stepping motor, the outer part of the screw rod is threadedly connected with a moving block, and the two ends of the moving block are connected with the supporting plate, so that the screw rod-moving block mechanism driven by the stepping motor is used to realize the accurate positioning of the supporting plate. The arrangement of the guide groove ensures the stability of the screw rod transmission system, and the selection of the stepping motor meets the accuracy requirement of position control. In particular, the double-side connection design of the moving block and the supporting plate effectively prevents the supporting plate from deflecting when bearing the load. The adjusting part structure not only can realize the stable lifting of the supporting plate, but also can adapt to the support requirements of workpieces of different sizes through the accurate control of the stepping motor.

[0011] In the above scheme: the motor base drives the vertical rod to rotate, the mechanical hand moves to the material taking position of the metal powder injection molding machine, then the servo motor drives the screw rod to rotate, the screw rod drives the threaded sleeve to move downward, the suction cup moves to the molded metal workpiece, under the action of the vacuum pump, the suction cup adsorbs the metal workpiece, in the process of moving downward of the threaded sleeve, the limit rods on the upper end of the threaded sleeve swing the connecting rod downward, and then the rotating plate rotates counterclockwise, the rotating plate makes the supporting plate turn counterclockwise to leave the lower side of the suction cup, after the workpiece is adsorbed, the servo motor continues to drive the screw rod to rotate, the threaded sleeve moves upward to take out the adsorbed metal workpiece, in the process of moving upward of the threaded sleeve, the supporting plate gradually moves to the lower side of the workpiece, when the supporting plate rotates to the lower side of the workpiece, the stepping motor drives the screw rod to rotate, the screw rod drives the moving block to move upward, the moving block drives the supporting plate to move upward, and the bottom of the workpiece is supported to prevent the workpiece from falling during suction and hoisting.

[0012] Preferably, the bottom of the supporting plate is provided with a notch, and a movable plate is hingedly connected in the notch, a rotary cylinder for driving the movable plate to rotate is mounted on one side of the outer part of the supporting plate, a brush is arranged on one side of the movable plate, and a flexible electromagnetic strip is arranged on the side of the movable plate between the two brush ends. The movable plate, the brush and the flexible electromagnetic strip are integrated on the bottom of the supporting plate to realize the dual functions of material taking and mold cleaning. The movable plate turning mechanism driven by the rotary cylinder is designed ingeniously and can be switched between the material taking position and the cleaning position. The arrangement of the flexible electromagnetic strip makes the iron filings adsorption more efficient, and the arrangement of the brush ensures the comprehensive cleaning of the mold surface. The multifunctional integrated design significantly improves the comprehensive use efficiency of the equipment.

[0013] The rotation angle of 90 degrees is carefully calculated, which can make the bristles fully expand for cleaning and save space to the maximum extent when stored, embodying the design idea of motion parameter optimization.

[0014] In the above scheme: after the workpiece is taken out, the movable plate is driven to rotate downward by 90 degrees by the rotary cylinder, and under the action of the hydraulic cylinder, the bristles are inserted into the formed mold, and then under the action of the motor base, the bristles are cleaned in the mold, and the flexible electromagnetic strip after being energized has magnetism, so that the cleaned iron metal is attracted to the bristles. After cleaning is completed, the rotary cylinder rotates the movable plate to the notch at the bottom of the supporting plate, completing the cleaning work of the forming mold, facilitating the next forming work of the mold.

[0015] Preferably, a heating pipe is connected above the movable plate in the notch, a moving sleeve is transversely sleeved outside the heating pipe, and a memory alloy is further sleeved outside the heating pipe, both ends of the memory alloy are connected with one side of the moving sleeve and one side of the notch, and the memory alloy is in a spiral shape. The lower part of the moving sleeve is provided with a comb tooth, and the temperature sensitive property of the memory alloy is used to realize the automatic movement of the comb tooth. The combination of the heating pipe, the moving sleeve and the memory alloy constitutes an intelligent execution system, which can automatically complete the cleaning work of the bristles according to the temperature change. The spiral-shaped memory alloy design increases the deformation stroke, and the cooperation relationship between the comb tooth and the bristles is carefully calculated to ensure the cleaning effect. This design shows the innovative application of intelligent materials in industrial automation equipment.

[0016] Preferably, the memory alloy undergoes shortening phase change when the temperature is above 70 degrees, at which time the comb tooth is completely away from the position of the bristles, and the memory alloy undergoes elongation phase change when the temperature is below 40 degrees, at which time the comb tooth is inserted into the bristles and close to the position of the movable plate. The phase change temperature parameters of the memory alloy are limited. The setting of the shortening phase change temperature threshold above 70 degrees and the elongation phase change temperature threshold below 40 degrees ensures the reliable switching of the system in different working states. The selection of this temperature parameter considers the balance between operation safety and material durability, so that the memory alloy can maintain stable performance in long-term use. The accurate control of the temperature threshold also reflects the careful design of the device in terms of heat management, ensuring the stable work of the system under various environmental conditions.

[0017] In the above scheme: turn on the power supply of the heating pipe to heat the memory alloy, and at the same time turn off the power supply of the flexible electromagnetic strip to lose its magnetism, so that the iron metal attached to the bristles will fall off, but some iron metal will still be attached to the bristles, when the memory alloy is heated to above 70 DEG C, the memory alloy undergoes phase change and gradually shortens, when shortening, the moving sleeve slides on the heating pipe, and then the comb teeth at the bottom of the moving sleeve scrape the residual iron metal on the flexible electromagnetic strip, facilitating the recycling of the iron metal, after scraping, turn off the power supply of the heating pipe to stop heating the memory alloy, when the memory alloy cools to below 40 DEG C, the memory alloy undergoes phase change again, and the memory alloy will elongate, so that the moving sleeve returns to the initial position, facilitating the next time the comb teeth to scrape the iron metal attached to the bristles.

[0018] The application provides a metal powder injection molding machine automatic material taking and discharging device. 1、The metal powder injection molding machine automatic material taking and discharging device, through the linkage of the servo motor, the screw rod and the threaded sleeve, the suction cup can accurately adsorb the workpiece, and the supporting plate gradually moves to the bottom of the workpiece during moving on the threaded sleeve, and finally supports the bottom of the workpiece, which effectively prevents the workpiece from falling during suction and hoisting, significantly improves the safety and stability of operation, and ensures the integrity of the workpiece.

[0019] 2、The metal powder injection molding machine automatic material taking and discharging device, through the cooperation of the rotary cylinder and the hydraulic cylinder, the bristles can deeply enter the mold for thorough cleaning, and the application of the flexible electromagnetic strip further enhances the cleaning effect, and through the magnetic adsorption of iron filings, the cleanliness of the inner surface of the mold is ensured, the cleaning efficiency of the mold is improved, and the service life of the mold is prolonged, thereby providing a good foundation for the next molding work.

[0020] 3、The metal powder injection molding machine automatic material taking and discharging device, through the heating pipe, the memory alloy is heated to change phase and shorten, the moving sleeve and the comb teeth are driven to scrape the residual iron filings on the flexible electromagnetic strip and the bristles, and after cooling, the memory alloy returns to the original state, ensuring the recycling and efficient maintenance of the system, improving the efficiency of iron filings recycling, and embodying the innovative application of intelligent materials in automatic equipment, thereby providing an efficient and convenient solution for iron filings cleaning and recycling. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the mechanical hand structure of the application; Figure 3 It is a schematic diagram of the internal structure of the shell seat of the application; Figure 4Structure schematic view of the material taking auxiliary mechanism of the application; Figure 5 Structure schematic view of the supporting plate of the application.

[0022] In the figure: 1, motor base; 2, vertical rod; 3, cross beam; 4, hydraulic cylinder; 5, mechanical hand; 51, housing base; 52, servo motor; 53, screw rod; 54, threaded sleeve; 55, suction head; 551, suction cup; 552, vacuum pump; 56, material taking auxiliary mechanism; 561, limiting rod; 562, connecting rod; 563, connecting rod; 564, rotating plate; 565, supporting plate; 5651, notch; 5652, movable plate; 5653, rotating cylinder; 5654, brush; 5655, flexible electromagnetic strip; 5656, heating pipe; 5657, moving sleeve; 5658, memory alloy; 5659, comb tooth; 566, guide groove; 567, screw rod; 568, moving block; 569, stepping motor; 57, limiting groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0024] Please refer to Figures 1-5 The application provides three technical solutions: Embodiment one Please refer to Figures 1-3 In the embodiments of the application, the automatic material taking and discharging device of the metal powder injection molding machine comprises a motor base 1, a vertical rod 2 connected to the output shaft of the motor base 1, a cross beam 3 connected to the upper end of the vertical rod 2, a hydraulic cylinder 4 installed on the upper part of one side of the cross beam 3, a mechanical hand 5 connected to the output shaft of the hydraulic cylinder 4 at a position below the cross beam 3, the mechanical hand 5 comprising a housing base 51, a servo motor 52 installed on the upper part of the housing base 51, the output shaft of the hydraulic cylinder 4 being connected to the upper part of the servo motor 52, a screw rod 53 connected to the output shaft of the servo motor 52 at a position inside the housing base 51, a threaded sleeve 54 threadedly connected to the outside of the screw rod 53, a suction head 55 longitudinally sliding through the inside bottom of the housing base 51 and connected to the lower end of the threaded sleeve 54, and a material taking auxiliary mechanism 56 arranged on both sides of the housing base 51.

[0025] Please refer to Figures 3-4In the embodiment of the present application, the material taking auxiliary mechanism 56 comprises a limiting rod 561 connected to one side of the upper end of the threaded sleeve 54, the other end of the limiting rod 561 is hinged with a connecting rod 562, the other end of the connecting rod 562 passes through the inner side wall of the shell seat 51 and is hinged with a connecting rod 563, the lower end of the connecting rod 563 is connected with a rotating plate 564, the upper side of the rotating plate 564 is hinged at one side of the lower edge of the shell seat 51, and the outer part of the rotating plate 564 is longitudinally slidably sleeved with a supporting plate 565, the supporting plate 565 is located below the suction head 55, and the material taking auxiliary mechanism 56 further comprises an adjusting part for driving the longitudinal displacement of the supporting plate 565.

[0026] Please refer to Figures 3-4 In the embodiment of the present application, the adjusting part comprises a guide groove 566 arranged on one side of the rotating plate 564 and a stepping motor 569 mounted on the bottom of the rotating plate 564, a lead screw 567 is rotatably arranged in the guide groove 566, the lead screw 567 is driven by the stepping motor 569, and the outer part of the lead screw 567 is threadedly rotatable with a moving block 568, and the two ends of the moving block 568 are connected with the supporting plate 565.

[0027] In this embodiment, the motor base 1 drives the vertical rod 2 to rotate, so that the mechanical hand 5 moves to the material taking position of the metal powder injection molding machine, then the servo motor 52 drives the screw rod 53 to rotate, the screw rod 53 drives the threaded sleeve 54 to move downward, so that the suction cup 551 moves to the molded metal workpiece, under the action of the vacuum pump 552, the suction cup 551 adsorbs the metal workpiece, in the process of moving downward of the threaded sleeve 54, the limiting rods 561 on both sides of the upper end of the threaded sleeve 54 make the connecting rod 562 drive the connecting rod 563 to swing downward, so that the rotating plate 564 rotates counterclockwise, the rotating plate 564 makes the supporting plate 565 turn counterclockwise, so that it is away from the lower side of the suction cup 551, which is convenient for the suction head 55 to move downward to the workpiece position and adsorb the workpiece, then the servo motor 52 continues to drive the screw rod 53 to rotate, so that the threaded sleeve 54 moves upward and takes out the adsorbed metal workpiece, in the process of moving upward of the threaded sleeve 54, the supporting plate 565 gradually moves to the lower side of the workpiece, when the supporting plate 565 rotates to the lower side of the workpiece, the stepping motor 569 drives the lead screw 567 to rotate, the lead screw 567 drives the moving block 568 to move upward, and the moving block 568 drives the supporting plate 565 to move upward, so as to support the bottom of the workpiece and prevent the workpiece from falling during suction and hoisting.

[0028] Further, please refer to Figures 2-3 In the embodiment of the present application, the two sides of the shell seat 51 are provided with limiting grooves 57, the connecting rod 562 slides through the limiting grooves 57, and the limiting grooves 57 are arranged to facilitate the rotation of the connecting rod 562 and the connecting rod 563.

[0029] Further, please refer to Figures 2-3The adsorption head 55 comprises a suction cup 551 connected to the lower end of the threaded sleeve 54, and a vacuum pump 552 is mounted on the upper portion of one side of the suction cup 551.

[0030] Embodiment two is different from embodiment one in that: Please refer to Figure 5 In the embodiment of the present application, the bottom of the supporting plate 565 is provided with a notch 5651, and a movable plate 5652 is hingedly connected in the notch 5651, a rotary cylinder 5653 for driving the movable plate 5652 to rotate is mounted on the outer side of the supporting plate 565, a brush 5654 is arranged on one side of the movable plate 5652, and a flexible electromagnetic strip 5655 is arranged on the side of the movable plate 5652 and located at the middle of the brush 5654.

[0031] Please refer to Figure 5 In the embodiment of the present application, the rotary cylinder 5653 rotates 90 degrees clockwise or counterclockwise each time.

[0032] In this embodiment, after the workpiece is taken out, the rotary cylinder 5653 drives the movable plate 5652 to rotate downward by 90 degrees, under the action of the hydraulic cylinder 4, the brush 5654 extends into the formed mold, and then under the action of the motor base 1, the brush 5654 sweeps in the mold, and the flexible electromagnetic strip 5655 after being electrified has magnetism, so that the iron metal swept will be adsorbed on the brush 5654, after the sweeping is completed, the rotary cylinder 5653 rotates the movable plate 5652 to the notch 5651 at the bottom of the supporting plate 565, and the sweeping work of the forming mold is completed, which is convenient for the next forming work of the mold.

[0033] Embodiment three is different from embodiment one in that: Please refer to Figure 5 In the embodiment of the present application, a heating pipe 5656 is connected above the movable plate 5652 in the notch 5651, a moving sleeve 5657 is transversely sleeved outside the heating pipe 5656, a memory alloy 5658 is further sleeved outside the heating pipe 5656, two ends of the memory alloy 5658 are connected with one side of the moving sleeve 5657 and one side of the notch 5651 respectively, the memory alloy 5658 is in a spiral shape, and a comb tooth 5659 is arranged at the lower portion of the moving sleeve 5657.

[0034] Please refer to Figure 5In the embodiment of the present application, the memory alloy 5658 is shortened at a temperature above 70 degrees, at which time the comb teeth 5659 are completely separated from the brush hairs 5654; the memory alloy 5658 is elongated at a temperature below 40 degrees, at which time the comb teeth 5659 are inserted into the brush hairs 5654 and close to the position of the movable plate 5652.

[0035] In the embodiment, the power supply of the heating pipe 5656 is turned on to heat the memory alloy 5658, and the power supply of the flexible electromagnetic strip 5655 is turned off to lose the magnetism, so that the iron metal attached to the brush hairs 5654 falls off, but some iron metal is still attached to the brush hairs 5654; when the memory alloy 5658 is heated to above 70 degrees, the memory alloy 5658 is phase changed to gradually shorten, and the moving sleeve 5657 slides on the heating pipe 5656, so that the comb teeth 5659 at the bottom of the moving sleeve 5657 scrape the residual iron metal on the flexible electromagnetic strip 5655, facilitating the recycling of the iron metal; after the iron metal is scraped off, the power supply of the heating pipe 5656 is turned off to stop heating the memory alloy 5658; when the memory alloy 5658 cools to below 40 degrees, the memory alloy 5658 is phase changed again to elongate, so that the moving sleeve 5657 returns to the initial position, facilitating the scraping of the iron metal attached to the brush hairs 5654 by the comb teeth 5659 next time.

[0036] Working principle: the motor base 1 drives the vertical rod 2 to rotate, so that the mechanical hand 5 moves to the material taking position of the metal powder injection molding machine, then the servo motor 52 drives the screw rod 53 to rotate, the screw rod 53 drives the threaded sleeve 54 to move downward, so that the suction cup 551 moves to the molded metal workpiece, under the working of the vacuum pump 552, the suction cup 551 adsorbs the metal workpiece, in the process of moving upward of the threaded sleeve 54, the two limit rods 561 on the upper end of the threaded sleeve 54 make the connecting rod 562 swing downward, so that the rotating plate 564 rotates counterclockwise, the supporting plate 565 is turned counterclockwise, so that it is away from the lower side of the suction cup 551, facilitating the suction cup 551 to move downward to the workpiece position and adsorb the workpiece, then the servo motor 52 continues to drive the screw rod 53 to rotate, so that the threaded sleeve 54 moves upward to take out the adsorbed metal workpiece, in the process of moving upward of the threaded sleeve 54, the supporting plate 565 gradually moves to the lower side of the workpiece, when the supporting plate 565 rotates to the lower side of the workpiece, the stepping motor 569 drives the lead screw 567 to rotate, the lead screw 567 drives the moving block 568 to move upward, the moving block 568 drives the supporting plate 565 to move upward, so as to support the bottom of the workpiece, preventing the workpiece from falling off during the suction and lifting; After the workpiece is taken out, the movable plate 5652 is driven by the rotary cylinder 5653 to rotate downward by 90 degrees, and under the action of the hydraulic cylinder 4, the bristles 5654 are extended into the formed mold, and then under the action of the motor base 1, the bristles 5654 are cleaned in the mold, and the flexible electromagnetic strip 5655 after being powered on has magnetism, so that the iron metal cleaned will be adsorbed on the bristles 5654, after cleaning is completed, the rotary cylinder 5653 rotates the movable plate 5652 to the notch 5651 at the bottom of the supporting plate 565, and the cleaning work of the forming mold is completed, facilitating the next forming work of the mold; Then the power supply of the heating pipe 5656 is turned on to heat the memory alloy 5658, and the power supply of the flexible electromagnetic strip 5655 is turned off to lose magnetism, so that the iron metal attached to the bristles 5654 will fall off, but some iron metal will still be attached to the bristles 5654, when the memory alloy 5658 is heated to above 70 degrees, the memory alloy 5658 changes phase, thereby gradually shortening, when shortening, the moving sleeve 5657 slides on the heating pipe 5656, thereby making the comb teeth 5659 at the bottom of the moving sleeve 5657 scrape the residual iron metal on the flexible electromagnetic strip 5655, facilitating the recycling of the iron metal, after scraping, the power supply of the heating pipe 5656 is turned off to stop heating the memory alloy 5658, when the memory alloy 5658 cools to below 40 degrees, the memory alloy 5658 changes phase again, the memory alloy 5658 will elongate, so that the moving sleeve 5657 returns to the initial position, facilitating the next scraping of the comb teeth 5659 on the iron metal attached to the bristles 5654; When discharging, the servo motor 52 is operated to drive the suction cup 551 to move the metal workpiece downward to the discharging place, and then the power supply of the vacuum pump 552 is turned off to stop the suction cup 551 from adsorbing the workpiece, thereby completing the discharging work.

[0037] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0038] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A metal powder injection molding machine automatic material taking and discharging device, comprising a motor base (1), the output shaft of the motor base (1) is connected with a vertical rod (2), the upper end of the vertical rod (2) is connected with a cross beam (3), a hydraulic cylinder (4) is installed on the upper part of one side of the cross beam (3), the output shaft of the hydraulic cylinder (4) is connected with a manipulator (5) at a position below the cross beam (3), characterized in that: The mechanical arm (5) comprises a housing base (51), a servo motor (52) is installed on the upper portion of the housing base (51), the output shaft of the hydraulic cylinder (4) is connected to the upper portion of the servo motor (52), the output shaft of the servo motor (52) is connected with a screw rod (53) at the internal position of the housing base (51), the outer portion of the screw rod (53) is threadedly connected with a threaded sleeve (54) matched therewith, the lower end of the threaded sleeve (54) slides through the bottom of the inner side of the housing base (51) and is connected with a suction head (55), and material taking auxiliary mechanisms (56) are arranged on the two sides of the housing base (51). The material taking auxiliary mechanism (56) comprises a limiting rod (561) connected to one side of the upper end of the threaded sleeve (54), the other end of the limiting rod (561) is hingedly connected with a connecting rod (562), the other end of the connecting rod (562) penetrates through the inner side wall of the housing base (51) and is hingedly connected with a connecting rod (563), the lower end of the connecting rod (563) is connected with a rotating plate (564), the upper side of the rotating plate (564) is hingedly connected to the lower edge of one side of the housing base (51), the outer portion of the rotating plate (564) is longitudinally and slidably sleeved with a supporting plate (565), and the supporting plate (565) is located below the suction head (55), and the material taking auxiliary mechanism (56) further comprises an adjusting portion for driving the longitudinal displacement of the supporting plate (565).

2. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 1, characterized in that: The two sides of the housing base (51) are provided with limiting grooves (57), and the connecting rod (562) slides through the limiting grooves (57).

3. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 1, characterized in that: The suction head (55) comprises a suction disc (551) connected to the lower end of the threaded sleeve (54), and a vacuum pump (552) is installed on the upper portion of one side of the suction disc (551).

4. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 1, characterized in that: The adjusting portion comprises a guide groove (566) arranged on one side of the rotating plate (564) and a stepping motor (569) installed on the bottom of the rotating plate (564), a lead screw (567) is rotatably arranged in the guide groove (566), the lead screw (567) is driven by the stepping motor (569), and the outer portion of the lead screw (567) is threadedly connected with a moving block (568), and the two ends of the moving block (568) are connected with the supporting plate (565).

5. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 1, characterized in that: The bottom of the supporting plate (565) is provided with a notch (5651), and a movable plate (5652) is hingedly connected in the notch (5651), a rotating cylinder (5653) for driving the rotation of the movable plate (5652) is installed on one side of the outer portion of the supporting plate (565), a brush (5654) is arranged on one side of the movable plate (5652), and a flexible electromagnetic strip (5655) is further arranged on one side of the movable plate (5652) and located at the middle of the brush (5654).

6. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 5, characterized in that: The rotating cylinder (5653) rotates 90 degrees clockwise or counterclockwise each time.

7. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 5, characterized in that: The notch (5651) is connected with a heating pipe (5656) above the movable plate (5652), the outside of the heating pipe (5656) is slidably sleeved with a moving sleeve (5657), and the outside of the heating pipe (5656) is further sleeved with a memory alloy (5658), the two ends of the memory alloy (5658) are connected with one side of the moving sleeve (5657) and one side of the notch (5651) respectively, and the memory alloy (5658) is in a spiral shape, and the lower part of the moving sleeve (5657) is provided with a comb tooth (5659).

8. The automatic material taking and discharging device of the metal powder injection molding machine according to claim 5, characterized in that: When the temperature of the memory alloy (5658) is above 70 degrees, shortening phase change occurs, at this time, the comb tooth (5659) is completely away from the position of the brush (5654), when the temperature of the memory alloy (5658) is below 40 degrees, the memory alloy (5658) occurs elongation phase change, at this time, the comb tooth (5659) is just inserted into the brush (5654) and close to the position of the movable plate (5652).

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