A metal powder injection molding sintering fixture

Abstract

The invention relates to the field of sintering jigs and discloses a metal powder injection molding sintering jig, comprising a base plate, a telescopic mechanism fixedly connected to the left side of the upper surface of the base plate, a movable plate fixedly connected to the right side of the telescopic mechanism, a mold plate disassembled and installed on the right side of the movable plate by bolts, the upper surface of the base plate located on the right side of the mold plate is fixedly connected to a mold forming mechanism, a feeding mechanism is fixedly connected to the top of the mold forming mechanism, the upper surface of the base plate located on the right side of the mold forming mechanism is fixedly connected to a circulating cooling mechanism, and a groove is provided at the lower right side of the mold plate; by starting the telescopic mechanism on the base plate, the movable plate and the mold plate are pushed to move, and can be moved toward the mold forming mechanism to close, or away from the mold forming mechanism to open, molding raw materials are fed into the mold forming mechanism through the feeding mechanism, and demoulding cooling is achieved through the circulating cooling mechanism.

Description

Technical Field

[0001] The invention relates to the field of sintering jigs, and more particularly to a sintering jig processed by metal powder injection molding. Background Art

[0002] Metal powder injection molding technology is a new manufacturing process technology that combines powder metallurgy with plastic molding technology. It first mixes the selected powder with a binder, then granulates the mixture and then injects it into the required shape. After molding, the binder is removed and the degreased blank is sintered.

[0003] Patent Publication No. (CN213135047U) discloses a metal injection molding sintering fixture, the technical solution of which is as follows: it comprises a fixed base, a slide rail is installed on the upper surface of the fixed base, a slider is slidably arranged on the slide rail, a positioning seat is welded on the upper surface of the slider, a first mold is arranged on one side of the positioning seat, a cushion block is welded on the upper surface of the fixed base, a first servo electric cylinder is installed on the upper surface of the cushion block, the output end of the first servo electric cylinder is fixedly connected to the surface of the positioning seat, a second mold is arranged on the upper surface of the fixed base, a barrel is arranged on the top of the second mold, a funnel is connected to one side of the top of the barrel, and a second servo electric cylinder is installed on one side of the barrel; the push plate is pushed to move by the second servo electric cylinder, so that the push plate pushes the raw material inside the barrel, thereby facilitating the full discharge of the raw material inside the barrel and increasing the utilization rate of the raw materials;

[0004] In the above technology, it is necessary to connect to an external water source during cooling and demoulding. When the external water source is inconvenient to use, cooling is inconvenient and needs to be improved. For this reason, we propose a metal powder injection molding sintering fixture. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a metal powder injection molding sintering jig, which can solve the problem that the above technology needs to be connected to an external water source during cooling and demolding, and cooling is inconvenient when the external water source is inconvenient to use.

[0006] To solve the above technical problems, according to one aspect of the present invention, more specifically, a metal powder injection molding processing sintering jig includes a base plate, a telescopic mechanism is fixedly connected to the left side of the upper surface of the base plate, a movable plate is fixedly connected to the right side of the telescopic mechanism, a mold plate is removably installed on the right side of the movable plate by bolts, the upper surface of the base plate is located on the right side of the mold plate and is fixedly connected to a mold forming mechanism, the top of the mold forming mechanism is fixedly connected to a feeding mechanism, the upper surface of the base plate is located on the right side of the mold forming mechanism and is fixedly connected to a circulating cooling mechanism, and a groove is opened at the lower right side of the mold plate.

[0007] Furthermore, a concave sliding member is symmetrically fixedly connected to the bottom of the movable plate, and a guide rail is fixedly connected to the inner side of the concave sliding member on the upper surface of the bottom plate.

[0008] Furthermore, the telescopic mechanism includes an air pressure box, the internal front surface of the air pressure box is fixedly connected to a motor, the rear end of the output shaft of the motor is fixedly connected to a cam, a through-type exhaust hole is opened on the right side of the air pressure box, and a piston plate is slidably connected to the interior of the air pressure box above the cam.

[0009] Furthermore, the top of the air pressure box one is fixedly connected to the air pressure box two, a ventilation hole is fixedly connected between the air pressure box two and the air pressure box one, a piston plate two is slidably connected inside the air pressure box two, a plurality of springs one are fixedly connected between the piston plate two and the air pressure box two, a push plate is fixedly connected to the right side of the piston plate two, and the right end of the push plate passes through the right side of the air pressure box two.

[0010] Furthermore, the mold forming mechanism includes a forming seat, a forming cavity is opened on the right side of the forming seat, a plurality of cooling cavities are opened inside the forming cavity, the top of the cooling cavity passes through the right side of the forming cavity, the bottoms of the plurality of cooling cavities are fixedly connected to a collecting cavity, two connecting columns are fixedly connected to the right side of the forming seat, the opposite sides of the two connecting columns are rotatably connected with a baffle through a rotating shaft, and a spring 2 is fixedly connected between the baffle and the bottom plate.

[0011] Furthermore, the feeding mechanism includes a feeding barrel, the upper surface of which is integrally formed with a feeding port, a pushing plate is slidably connected to the inside of the feeding barrel, an electric push rod is fixedly connected to the right side of the feeding barrel, the left end of the output end of the electric push rod passes through the interior of the feeding barrel and is fixedly connected to the right side of the pushing plate, and a feeding cavity is fixedly connected between the feeding barrel and the forming cavity.

[0012] Furthermore, the circulating cooling mechanism includes water tank 1 and water tank 2, and water tank 1 and water tank 2 are fixedly connected. The upper left side of water tank 1 and the upper left side of water tank 2 are both fixedly connected with a liquid inlet pipe, and the lower left side of water tank 1 and the lower left side of water tank 2 are both fixedly connected with a liquid outlet pipe. The right ends of the two liquid outlet pipes are commonly fixedly connected with a circulating pump, and the output end of the circulating pump is fixedly connected with the interior of the collecting chamber, and the left ends of the two liquid inlet pipes are commonly fixedly connected with a transfer chamber, and the left side of the transfer chamber is fixedly connected with multiple branch pipes, and the left ends of the multiple branch pipes are respectively fixedly connected with the interiors of the multiple cooling chambers.

[0013] Furthermore, a rack is fixedly connected to the lower part of the interior of water tank 1 and water tank 2, a transverse groove is opened on the right side of water tank 1, and an electric push rod 2 is fixedly connected to the right side of water tank 1 behind the transverse groove, the front end of the output end of electric push rod 2 is located on the inner side of the transverse groove and is fixedly connected to a connecting strip, the left end of the connecting strip is located in the interior of water tank 1 and is fixedly connected to shaft rod 1, the front surface of shaft rod 1 is located in the interior of water tank 2 and is fixedly connected to shaft rod 2, the bottom ends of shaft rod 1 and shaft rod 2 are rotatably connected to stirring rods via rotating shafts, the bottom ends of the stirring rods are fixedly connected to gears, and the gears are meshingly connected to the rack.

[0014] Furthermore, a limiting guide groove is provided on the left inner side of the water tank one and the left inner side of the water tank two, the limiting guide groove is fixedly connected to a limiting guide rod inside, the outer wall of the limiting guide rod is slidably connected to a limiting guide block, the right side of the limiting guide block is fixedly connected to a sealing baffle plate, the interior of the sealing baffle plate is symmetrically provided with through-type docking holes, the right side of the sealing baffle plate is fixedly connected to a pressure plate, the outer wall of the limiting guide rod is sleeved with a spring three, the bottom end and the top end of the spring three are respectively fixedly connected to the limiting guide groove and the opposite sides of the limiting guide block.

[0015] Furthermore, the outer wall of the shaft rod one and the outer wall of the shaft rod two are both fixedly connected to a rotating cylinder, the outer wall of the rotating cylinder is sleeved with a toggle extrusion piece, the interior of the toggle extrusion piece is located on the outside of the rotating cylinder and is provided with an arc-shaped limiting groove, the outer wall of the rotating cylinder is located on the inner side of the arc-shaped limiting groove and is fixedly connected to a limiting block, and the outer wall of the toggle extrusion piece is in contact with the upper surface of the pressure plate.

[0016] The beneficial effects of the metal powder injection molding sintering fixture of the present invention are:

[0017] By starting the telescopic mechanism on the bottom plate, the movable plate and the mold plate are pushed to move, and the mold plate can be moved toward the mold forming mechanism to close or away from the mold forming mechanism to open. The molding raw materials are fed into the mold forming mechanism through the feeding mechanism, and demoulding cooling is achieved through the circulating cooling mechanism.

[0018] Start the motor to rotate, control the cam to rotate, push the piston plate 1 to move along the inside of the air pressure box 1, and fill the gas inside the air pressure box 1 into the inside of the air pressure box 2, drive the piston plate 2 and the push plate to the right, so as to drive the mold plate to move to the right, cover the mold forming mechanism, control the cam to continue to rotate, and under the push of the spring 1, pull the mold plate to move to the left to reset;

[0019] Put the material box into the feeding barrel through the feeding port, start the electric push rod 1 so that the push plate pushes the material into the forming cavity for metal powder injection molding. The cooling cavity can be cooled and demoulded by passing cold water. The baffle is adapted to the groove. When the mold plate is attached to the forming seat, the baffle will be stuck in the groove. When the mold plate is away from the forming seat for demoulding, the formed mold can be prevented from being directly separated and easily damaged under the support of spring 2. Start the circulation pump to pass the water in the water tank into the collecting cavity, and then after passing through the cooling cavity, it flows back to the water tank through multiple water pipes to achieve a water circulation cooling effect.

[0020] Start the circulation pump, use the liquid outlet pipe to draw water from the inside of water tank one or water tank two, enter the cooling chamber for cooling, then flow to the transfer chamber through multiple branch pipes, and then flow back to the inside of water tank one or water tank two through the liquid inlet pipe, completing the circulation cooling effect;

[0021] By controlling the extension or retraction of the second electric push rod, the two stirring rods can be driven to move forward or backward at the same time under the connection of the connecting bar. With the meshing of the gear and the rack, the stirring rods can move back and forth repeatedly while rotating and stirring, which increases the stirring range and accelerates the cooling of the water.

[0022] By setting up water tank one and water tank two, they can be alternately connected to the cooling chamber, so that cooling water can be stored in the two boxes for circulation cooling. When the water in one box is circulating cooling, the water in the other box stops circulating cooling, thereby accelerating its own cooling. This method has higher cooling efficiency than cooling with water stored in a single box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] Figure 1 This is a schematic diagram of the overall structure of a metal powder injection molding sintering jig of the present invention;

[0025] Figure 2 It is a schematic cross-sectional view of a gas pressure box 1 of a metal powder injection molding sintering jig according to the present invention;

[0026] Figure 3 It is a schematic cross-sectional view of the structure of a gas pressure box 2 of a metal powder injection molding sintering jig according to the present invention;

[0027] Figure 4 It is a schematic diagram of the cross-sectional connection structure of a mold forming mechanism and a feeding mechanism of a metal powder injection molding sintering jig of the present invention;

[0028] Figure 5It is a schematic cross-sectional structural diagram of a water tank 1 of a metal powder injection molding sintering jig of the present invention;

[0029] Figure 6 This is a schematic cross-sectional structure diagram of a water tank 2 of a sintering jig for metal powder injection molding processing according to the present invention.

[0030] Figure 7 The present invention is a schematic diagram of the side view connection structure of a toggle extrusion piece and a rotating cylindrical vertical section of a metal powder injection molding sintering fixture.

[0031] In the figure: 1, bottom plate; 2, telescopic mechanism; 3, moving plate; 4, mold plate; 5, mold forming mechanism; 6, feeding mechanism; 7, circulating cooling mechanism; 8, concave sliding member; 9, guide rail; 10, groove; 201, air pressure box 1; 202, motor; 203, cam; 204, exhaust hole; 205, piston plate 1; 206, air pressure box 2; 207, ventilation hole; 208, piston plate 2; 209, spring 1; 210, push plate; 501, forming seat; 502, forming cavity; 503, cooling cavity; 504, collecting cavity; 505, connecting column; 506, stop bar; 507, spring 2; 601, feeding barrel; 602, feeding port; 603, push plate; 604, Electric push rod one; 605, feed chamber; 701, water tank one; 702, water tank two; 703, liquid inlet pipe; 704, liquid outlet pipe; 705, circulation pump; 706, transfer chamber; 707, branch pipe; 708, rack; 709, transverse groove; 710, electric push rod two; 711, connecting strip; 712, shaft rod one; 713, shaft rod two; 714, stirring rod; 715, gear; 716, limit guide groove; 717, limit guide rod; 718, limit guide block; 719, sealing baffle; 720, docking hole; 721, pressure plate; 722, rotating cylinder; 723, toggle extrusion member; 724, arc limit groove; 725, limit block; 726, spring three. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0033] According to one aspect of the present invention, Figure 1-6As shown, a metal powder injection molding processing sintering jig is provided, including a bottom plate 1, a telescopic mechanism 2 is fixedly connected to the left side of the upper surface of the bottom plate 1, a moving plate 3 is fixedly connected to the right side of the telescopic mechanism 2, a mold plate 4 is disassembled and installed on the right side of the moving plate 3 by bolts, a mold forming mechanism 5 is fixedly connected to the upper surface of the bottom plate 1 located on the right side of the mold plate 4, a feeding mechanism 6 is fixedly connected to the top of the mold forming mechanism 5, a circulating cooling mechanism 7 is fixedly connected to the upper surface of the bottom plate 1 located on the right side of the mold forming mechanism 5, and a groove 10 is opened at the lower right side of the mold plate 4;

[0034] By starting the telescopic mechanism 2 on the bottom plate 1, the movable plate 3 and the mold plate 4 are pushed to move toward the mold forming mechanism 5 to close, or away from the mold forming mechanism 5 to open, and the molding raw materials are fed into the mold forming mechanism 5 through the feeding mechanism 6, and demolding cooling is achieved through the circulating cooling mechanism 7.

[0035] In this embodiment, a concave sliding member 8 is symmetrically fixedly connected to the bottom of the moving plate 3, and a guide rail 9 is fixedly connected to the inner side of the concave sliding member 8 on the upper surface of the bottom plate 1;

[0036] It has a guiding effect on the movable plate 3.

[0037] In this embodiment, the telescopic mechanism 2 includes an air pressure box 201, the inner front surface of the air pressure box 201 is fixedly connected to a motor 202, the rear end of the output shaft of the motor 202 is fixedly connected to a cam 203, a through-type exhaust hole 204 is provided on the right side of the air pressure box 201, a piston plate 205 is slidably connected to the inside of the air pressure box 201 above the cam 203, an air pressure box 206 is fixedly connected to the top of the air pressure box 201, an air exchange hole 207 is fixedly connected between the air pressure box 206 and the air pressure box 201, a piston plate 208 is slidably connected to the inside of the air pressure box 206, a plurality of springs 209 are fixedly connected between the piston plate 208 and the air pressure box 206, a push plate 210 is fixedly connected to the right side of the piston plate 208, and the right end of the push plate 210 penetrates to the right side of the air pressure box 206;

[0038] Start the motor 202 to rotate, control the cam 203 to rotate, and push the piston plate 205 to move along the inside of the air pressure box 201. The internal gas of the air pressure box 201 can be filled into the inside of the air pressure box 206, driving the piston plate 208 and the push plate 210 to push to the right, thereby driving the mold plate 4 to move to the right, covering the mold forming mechanism 5, and controlling the cam 203 to continue to rotate. Under the push of the spring 209, the mold plate 4 can be pulled to move to the left and reset.

[0039] In this embodiment, the mold forming mechanism 5 includes a forming seat 501, a forming cavity 502 is opened on the right side of the forming seat 501, and a plurality of cooling cavities 503 are opened inside the forming seat 501 and located inside the forming cavity 502. The top of the cooling cavity 503 passes through the right side of the forming cavity 502, and the bottoms of the plurality of cooling cavities 503 are fixedly connected to a collecting cavity 504. Two connecting columns 505 are fixedly connected to the right side of the forming seat 501, and the opposite sides of the two connecting columns 505 are rotatably connected to a stop bar 506 through a rotating shaft. A spring 2 507 is fixedly connected between the blocking bar 506 and the bottom plate 1, and the feeding mechanism 6 includes a feeding barrel 601, and a feeding port 602 is integrally formed on the upper surface of the feeding barrel 601, and a pushing plate 603 is slidably connected inside the feeding barrel 601, and an electric push rod 1 604 is fixedly connected to the right side of the feeding barrel 601, and the left end of the output end of the electric push rod 1 604 penetrates into the inside of the feeding barrel 601 and is fixedly connected to the right side of the pushing plate 603, and a feeding cavity 605 is fixedly connected between the feeding barrel 601 and the forming cavity 502;

[0040] The material box is placed into the feed barrel 601 through the feed port 602, and the electric push rod 604 is started to make the push plate 603 push the material into the forming cavity 502 for metal powder injection molding. The cooling cavity 503 can cool and demold the molded material by passing cold water. The baffle 506 is adapted to the groove 10. When the mold plate 4 is attached to the forming seat 501, the baffle 506 will be stuck in the groove 10. When the mold plate 4 is away from the forming seat 501 for demolding, the problem of direct detachment and easy damage of the formed mold can be prevented under the support of the spring 2 507.

[0041] In this embodiment, the circulating cooling mechanism 7 includes a water tank 1 701 and a water tank 2 702, which are fixedly connected. The upper left side of the water tank 1 701 and the upper left side of the water tank 2 702 are both fixedly connected with a liquid inlet pipe 703, and the lower left side of the water tank 1 701 and the lower left side of the water tank 2 702 are both fixedly connected with a liquid outlet pipe 704. The right ends of the two liquid outlet pipes 704 are commonly fixedly connected with a circulation pump 705, and the output end of the circulation pump 705 is fixedly connected with the interior of the collecting chamber 504. The left ends of the two liquid inlet pipes 703 are commonly fixedly connected with a transfer chamber 706, and the left side of the transfer chamber 706 is fixedly connected with a plurality of branch pipes 707, and the left ends of the plurality of branch pipes 707 are respectively fixedly connected with the interior of the plurality of cooling chambers 503.

[0042] Start the circulation pump 705, use the liquid outlet pipe 704 to draw water from the inside of water tank 1 701 or water tank 2 702, enter the cooling chamber 503 for cooling, flow to the transfer chamber 706 through multiple branch pipes 707, and then flow back to the inside of water tank 1 701 or water tank 2 702 through the liquid inlet pipe 703, completing the circulation cooling effect.

[0043] In this embodiment, a rack 708 is fixedly connected to the lower part of the inner part of water tank 1 701 and water tank 2 702, a transverse groove 709 is opened on the right side of water tank 1 701, and an electric push rod 2 710 is fixedly connected to the right side of water tank 1 701 behind the transverse groove 709, the front end of the output end of the electric push rod 2 710 is located on the inner side of the transverse groove 709 and is fixedly connected to a connecting strip 711, the left end of the connecting strip 711 is located inside water tank 1 701 and is fixedly connected to an axle rod 1 712, the front surface of the axle rod 1 712 is located inside water tank 2 702 and is fixedly connected to an axle rod 2 713, the bottom ends of the axle rod 1 712 and the bottom ends of the axle rod 2 713 are both rotatably connected to a stirring rod 714 through a rotating shaft, the bottom end of the stirring rod 714 is fixedly connected to a gear 715, and the gear 715 is meshed with the rack 708;

[0044] By controlling the extension or retraction of the electric push rod 710, the two stirring rods 714 can be driven to move forward or backward at the same time under the connection of the connecting bar 711. The engagement of the gear 715 and the rack 708 allows the stirring rods 714 to move back and forth repeatedly while rotating and stirring, thereby increasing the stirring range and accelerating the cooling of the water.

[0045] In this embodiment, the inner left side of water tank 1 701 and the inner left side of water tank 2 702 are both provided with a limiting guide groove 716, the inner part of the limiting guide groove 716 is fixedly connected to a limiting guide rod 717, the outer side wall of the limiting guide rod 717 is slidably connected to a limiting guide block 718, the right side of the limiting guide block 718 is fixedly connected to a sealing baffle plate 719, the inner part of the sealing baffle plate 719 is symmetrically provided with through-type docking holes 720, the right side of the sealing baffle plate 719 is fixedly connected to a pressure plate 721, the outer side wall of the limiting guide rod 717 is provided with a spring three 726, the spring three The bottom and top ends of 726 are fixedly connected to the opposite sides of the limiting guide groove 716 and the limiting guide block 718 respectively. The outer wall of the shaft rod 1 712 and the outer wall of the shaft rod 2 713 are fixedly connected with a rotating cylinder 722. The outer wall of the rotating cylinder 722 is sleeved with a toggle extrusion piece 723. The interior of the toggle extrusion piece 723 is located on the outer side of the rotating cylinder 722 and is provided with an arc-shaped limiting groove 724. The outer wall of the rotating cylinder 722 is located on the inner side of the arc-shaped limiting groove 724 and is fixedly connected to the limiting block 725. The outer wall of the toggle extrusion piece 723 contacts the upper surface of the pressure plate 721.

[0046] Under normal conditions, the sealing shielding plate 719, under the action of the spring three 726, will cause the docking hole 720 and the liquid inlet pipe 703 and the liquid outlet pipe 704 to be misaligned, so that the water tank 1 701 or the water tank 2 702 cannot discharge or inlet liquid. At the same time, the two toggle extrusion members 723 are limited in different directions by the limit block 725 and the arc-shaped limit groove 724, so that when the toggle extrusion members 723 move forward or backward, one will be blocked by the limit block 725 and cannot move, and the other will not be restricted and can rotate slightly when blocked, so that the two toggle extrusion members 723 will contact the two pressure plates 721 as the shaft rod 1 712 and the shaft rod 2 713 move back and forth repeatedly. When the stirring rod 714 is moved forward and backward repeatedly for stirring, the water tank 1 701 or the water tank 2 702 will alternately open the water inlet and outlet, so that the water can flow in and out alternately, so that the water flow is kept alternately to circulate and cool the cooling chamber 503. This method can avoid the problem of poor cooling effect caused by the circulating flow of water stored in a single box.

[0047] The working principle of the device is: by starting the telescopic mechanism 2 on the bottom plate 1, the movable plate 3 and the mold plate 4 are pushed to move toward the mold forming mechanism 5 to close, or away from the mold forming mechanism 5 to open, and the molding raw materials are fed into the mold forming mechanism 5 through the feeding mechanism 6, and demoulding cooling is achieved through the circulating cooling mechanism 7.

[0048] The electrical components that appear in this article are all electrical components that exist in reality.

[0049] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A metal powder injection molding sintering jig, comprising a base plate (1), characterized in that: The left side of the upper surface of the bottom plate (1) is fixedly connected to a telescopic mechanism (2), the right side of the telescopic mechanism (2) is fixedly connected to a movable plate (3), the right side of the movable plate (3) is detachably mounted with a mold plate (4) by means of bolts, the upper surface of the bottom plate (1) is located to the right of the mold plate (4) and is fixedly connected to a mold forming mechanism (5), the top of the mold forming mechanism (5) is fixedly connected to a feeding mechanism (6), the upper surface of the bottom plate (1) is located to the right of the mold forming mechanism (5) and is fixedly connected to a circulating cooling mechanism (7), and a groove (10) is provided at the lower right side of the mold plate (4); The mold forming mechanism (5) comprises a forming seat (501), a forming cavity (502) is provided on the right side of the forming seat (501), a plurality of cooling cavities (503) are provided inside the forming seat (501) and are located inside the forming cavity (502), the top of the cooling cavity (503) passes through the right side of the forming cavity (502), the bottoms of the plurality of cooling cavities (503) are fixedly connected to a collecting cavity (504), two connecting columns (505) are fixedly connected to the right side of the forming seat (501), the opposite sides of the two connecting columns (505) are rotatably connected to a stop bar (506) via a rotating shaft, and a second spring (507) is fixedly connected between the stop bar (506) and the bottom plate (1); The circulating cooling mechanism (7) comprises a water tank 1 (701) and a water tank 2 (702), wherein the water tank 1 (701) and the water tank 2 (702) are fixedly connected, and the upper left side of the water tank 1 (701) and the upper left side of the water tank 2 (702) are both fixedly connected with a liquid inlet pipe (703), and the lower left side of the water tank 1 (701) and the lower left side of the water tank 2 (702) are both fixedly connected with a liquid outlet pipe (704), and the right ends of the two liquid outlet pipes (704) are fixedly connected with a circulating pump (705), and the output end of the circulating pump (705) is fixedly connected with the inside of the collecting chamber (504), and the left ends of the two liquid inlet pipes (703) are fixedly connected with a transfer chamber (706), and the left side of the transfer chamber (706) is fixedly connected with a plurality of branch pipes (707), and the left ends of the plurality of branch pipes (707) are respectively fixedly connected with the inside of the plurality of cooling chambers (503); The inner bottom of each of the water tanks 1 (701) and 2 (702) is fixedly connected with a rack (708); a transverse groove (709) is provided on the right side of the water tank 1 (701); an electric push rod 2 (710) is fixedly connected to the right side of the water tank 1 (701) behind the transverse groove (709); the front end of the output end of the electric push rod 2 (710) is located inside the transverse groove (709) and is fixedly connected with a connecting strip (711); the left end of the connecting strip (711) is located at the inner side of the transverse groove (709); A shaft rod (712) is fixedly connected inside the water tank (701), a front surface of the shaft rod (712) is located inside the water tank (702) and is fixedly connected to a shaft rod (713), the bottom ends of the shaft rod (712) and the shaft rod (713) are both rotatably connected to a stirring rod (714) via a rotating shaft, a gear (715) is fixedly connected to the bottom end of the stirring rod (714), and the gear (715) is meshingly connected to the rack (708); The inner left side of the water tank 1 (701) and the inner left side of the water tank 2 (702) are both provided with a limit guide groove (716), the inner part of the limit guide groove (716) is fixedly connected to a limit guide rod (717), the outer side wall of the limit guide rod (717) is slidably connected to a limit guide block (718), the right side of the limit guide block (718) is fixedly connected to a sealing baffle plate (719), the inner part of the sealing baffle plate (719) is symmetrically provided with through-type docking holes (720), the right side of the sealing baffle plate (719) is fixedly connected to a pressure plate (721), the outer side wall of the limit guide rod (717) is sleeved with a spring three (726), the bottom end and the top end of the spring three (726) are respectively fixedly connected to the limit guide groove (716) and the opposite sides of the limit guide block (718); The outer wall of the shaft rod 1 (712) and the outer wall of the shaft rod 2 (713) are both fixedly connected with a rotating cylinder (722), the outer wall of the rotating cylinder (722) is sleeved with a toggle extrusion piece (723), the interior of the toggle extrusion piece (723) is located on the outer side of the rotating cylinder (722) and is provided with an arc-shaped limiting groove (724), the outer wall of the rotating cylinder (722) is located on the inner side of the arc-shaped limiting groove (724) and is fixedly connected with a limiting block (725), and the outer wall of the toggle extrusion piece (723) is in contact with the upper surface of the pressure plate (721); The two toggle extrusion members (723) are limited in different directions by the limit block (725) and the arc-shaped limit groove (724), so that when the toggle extrusion members (723) move forward or backward, one of them is blocked by the limit block (725) and cannot move, while the other is not restricted and can rotate slightly when blocked. Therefore, when the two toggle extrusion members (723) repeatedly move forward and backward along with the shaft rod 1 (712) and the shaft rod 2 (713), when they contact the two pressure plates (721), the blocked toggle extrusion member (723) will squeeze the pressure plate (721) to move, and the unblocked toggle extrusion member (723) will rotate slightly when in contact with the pressure plate (721). The squeezed pressure plate (721) descends, causing the docking hole (720) to dock and communicate with the liquid inlet pipe (703) and the liquid outlet pipe (704), so that the water tank 1 (701) Or one of the water tanks (702) is filled with water and drained.

2. A metal powder injection molding sintering jig according to claim 1, characterized in that: A concave sliding member (8) is symmetrically and fixedly connected to the bottom of the movable plate (3), and a guide rail (9) is fixedly connected to the upper surface of the bottom plate (1) located inside the concave sliding member (8).

3. A metal powder injection molding sintering jig according to claim 1, characterized in that: The telescopic mechanism (2) comprises an air pressure box (201), the inner front surface of the air pressure box (201) is fixedly connected to a motor (202), the rear end of the output shaft of the motor (202) is fixedly connected to a cam (203), a through-type exhaust hole (204) is provided on the right side of the air pressure box (201), and a piston plate (205) is slidably connected to the interior of the air pressure box (201) above the cam (203).

4. A metal powder injection molding sintering jig according to claim 3, characterized in that: The top of the air pressure box one (201) is fixedly connected to the air pressure box two (206), and a ventilation hole (207) is fixedly connected between the air pressure box two (206) and the air pressure box one (201). The interior of the air pressure box two (206) is slidably connected to the piston plate two (208), and a plurality of springs one (209) are fixedly connected between the piston plate two (208) and the air pressure box two (206). The right side of the piston plate two (208) is fixedly connected to a push plate (210), and the right end of the push plate (210) passes through the right side of the air pressure box two (206).

5. The metal powder injection molding sintering jig according to claim 1, characterized in that: The feeding mechanism (6) includes a feeding barrel (601), the upper surface of which is integrally formed with a feeding port (602), the interior of the feeding barrel (601) is slidably connected to a pushing plate (603), the right side of the feeding barrel (601) is fixedly connected to an electric push rod 1 (604), the left end of the output end of the electric push rod 1 (604) passes through the interior of the feeding barrel (601) and is fixedly connected to the right side of the pushing plate (603), and a feeding cavity (605) is fixedly connected between the feeding barrel (601) and the forming cavity (502).

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