Raw material mixing device for metal powder injection molding

Abstract

The invention discloses a raw material mixing device for metal powder injection molding, the raw material mixing device comprises a fixing frame and a bottom plate, the bottom plate is fixedly mounted on the bottom surface of the fixing frame, the upper part of the inner wall of the fixing frame is fixedly connected with a mixing box, a mixing mechanism is arranged in the mixing box, and a beating mechanism is arranged on the outer surface of the mixing box. The invention relates to the technical field of metal powder processing. According to the raw material mixing device for metal powder injection molding, a supporting rod is fixedly connected with a weak magnetic spiral plate, a fixed cylinder rotates to drive the supporting rod and the weak magnetic spiral plate to rotate, stirring and mixing of metal powder are achieved, the weak magnetic spiral plate conducts magnetic attraction stirring on the metal powder during rotation, and the stirring effect is improved; the output end of a first air cylinder pushes a first telescopic column to move repeatedly, the first telescopic column drives a protruding block fixedly connected with the surface of one end of the first telescopic column to move repeatedly, the mixing box is hit, metal powder adsorbed by a weak magnetic spiral plate falls off, and waste caused by the fact that the metal powder remains in the mixing box is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of metal powder processing, in particular to a raw material mixing device for metal powder injection molding. Background Art

[0002] Metal powder refers to a group of metal particles with a size of less than 1mm. It includes single metal powder, alloy powder and some refractory compound powders with metallic properties. It is the main raw material of powder metallurgy. Metallic elements are generally silvery white. When metal is under certain conditions, it is black powder. Most metal powders are black. The preparation and application of metal powders have a long history. In ancient times, gold, silver, copper, bronze and some oxide powders were used as coatings for coloring and decoration of pottery, jewelry and other utensils. Metal powder is a loose substance, and its performance comprehensively reflects the properties of the metal itself, the properties of individual particles and the characteristics of the particle group. The properties of metal powder are generally divided into chemical properties, physical properties and process properties. Chemical properties refer to metal content and impurity content. Physical properties include the average particle size and particle size distribution of powder, the specific surface area and true density of powder, the shape, surface morphology and internal microstructure of particles. Process performance is a comprehensive performance, including powder fluidity, bulk density, tap density, compressibility, formability and sintering size change. In addition, for some special purposes, the powder is also required to have other chemical and physical properties, such as catalytic performance, electrochemical activity, corrosion resistance, electromagnetic properties, internal friction coefficient, etc. The performance of metal powder depends largely on the production method and preparation process of the powder. In the injection molding process of metal powder, the metal powder needs to be fully mixed with the other materials to ensure the quality of injection molding production, so it is necessary to use a corresponding mixing and stirring device for mixing the metal powder raw materials.

[0003] The existing raw material mixing device for metal powder injection molding has a relatively simple structure, a relatively single mixing method, and a relatively small stirring force, resulting in a poor mixing effect of the metal powder raw material and a long time required for mixing, which cannot meet the actual production needs of metal powder injection molding production; at the same time, the existing raw material mixing device for metal powder injection molding is not easy to discharge the mixed raw material during discharging, and the flow rate of the raw material during the discharging process is low and the time is long, which is not conducive to the rapid use and production of the metal powder raw material.

[0004] For example, a raw material mixing device for metal powder injection molding and a metal powder injection molding method disclosed in the Chinese invention patent publication number CN112791625A include a support seat and a collecting hopper, a mixing barrel is fixed on the top of the support seat, a first motor is fixed on an inner wall of the support seat, a cover plate is fixed on the top of the mixing barrel, a support plate is fixed on the top of the cover plate, a second motor is fixed on an inner wall of the support plate, and a first support rod is fixed on one end of the output shaft of the second motor. The present invention uses a gear transmission method to enable the second motor to synchronously drive a plurality of first spiral augers to rotate, so that the first spiral augers cooperate with the feed pipe to drive the raw materials in the mixing barrel to stir up and down, because the plurality of feed pipes are distributed in a circular array and the lengths decrease step by step in a clockwise direction, so that the raw materials at different depths in the mixing barrel can collide in the collecting hopper and be further fully mixed under the action of a plurality of second stirring rods, thereby significantly improving the effect and efficiency of raw material mixing.

[0005] The above device uses a plurality of first spiral augers to rotate and stir the metal powder, but the mixing effect is not good enough. When the metal powder is stirred and mixed and discharged, there may be residual metal powder that cannot be completely discharged, resulting in waste of metal powder.

[0006] Therefore, we propose a raw material mixing device for metal powder injection molding to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a raw material mixing device for metal powder injection molding, which solves the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a raw material mixing device for metal powder injection molding, comprising a fixed frame and a bottom plate, the bottom plate is fixedly installed on the bottom surface of the fixed frame, a mixing box is fixedly connected to the upper part of the inner wall of the fixed frame, a No. 1 connecting plate is fixedly installed on one side of the outer surface of the mixing box, a rotating shaft is rotatably installed on the upper part of the outer surface of the No. 1 connecting plate, a No. 2 connecting plate is fixedly connected to both ends of the outer surface of the rotating shaft, a reinforcing rib is fixedly installed on one side of the outer surface of the No. 2 connecting plate, a cover plate is fixedly connected to one side of the outer surface of the reinforcing rib, a No. 3 connecting plate is fixedly installed on one side of the outer surface of the cover plate, a handle is fixedly installed on the outer surface of the No. 3 connecting plate, a mixing mechanism is arranged inside the mixing box, and a striking mechanism is arranged on the outer surface of the mixing box; The mixing mechanism includes a clamping seat fixedly installed on one side of the outer surface of the mixing box, a No. 1 fixing ring is fixedly installed on one side of the outer surface of the clamping seat, one end surface of the No. 1 fixing ring is fixedly connected to a reduction box, the output end of the reduction box is connected to a transmission shaft, one end of the transmission shaft is fixedly connected to a fixed cylinder, the outer surface of the fixed cylinder is fixedly connected to a support rod, one end of the support rod is fixedly connected to a weak magnetic spiral plate, the bottom surface of the reduction box is fixedly connected to a driving motor, one side of the outer surface of the transmission shaft is rotatably connected to a mounting ring, and the other side of the outer surface of the transmission shaft is rotatably connected to a No. 2 fixing ring.

[0009] A further improvement of the technical solution of the present invention is that the striking mechanism includes a horizontal column fixedly installed on one side of the outer surface of the fixing frame, a circular hole penetrates through one side of the outer surface of the horizontal column, a No. 1 cylinder is fixedly installed on one side of the outer surface of the horizontal column, an output end of the No. 1 cylinder is connected to a No. 1 telescopic column, and a protrusion is fixedly connected to one end surface of the No. 1 telescopic column.

[0010] A further improvement of the technical solution of the present invention is that a limiting mechanism is arranged on the upper part of one side of the outer surface of the mixing box, and the limiting mechanism includes a fixed block fixedly installed on the upper part of one side of the outer surface of the mixing box, and a No. 4 connecting plate is movably connected to one side of the outer surface of the fixed block, and an adjustable wrench is movably connected to the outer surface of the No. 4 connecting plate, and a limiting bolt is connected to one end of the adjustable wrench, and a bolt hole is opened on one side of the outer surface of the reinforcing rib.

[0011] A further improvement of the technical solution of the present invention is that a discharging mechanism is provided at the lower part of the outer surface of the mixing box, and the discharging mechanism includes a square plate fixedly installed on one side of the lower part of the outer surface of the mixing box, a No. 2 cylinder is fixedly installed on one side of the outer surface of the square plate, and the output end of the No. 2 cylinder is connected to a No. 2 telescopic column, and a connecting shaft is rotatably installed at one end of the No. 2 telescopic column, and a triangular plate is fixedly connected to the outer surface of the connecting shaft, and a slide plate is fixedly installed on the upper surface of the triangular plate.

[0012] Embodiment 1: A raw material mixing device for metal powder injection molding, comprising a fixed frame and a bottom plate, the bottom plate is fixedly mounted on the bottom surface of the fixed frame, a mixing box is fixedly connected to the upper part of the inner wall of the fixed frame, a No. 1 connecting plate is fixedly mounted on one side of the outer surface of the mixing box, a rotating shaft is rotatably mounted on the upper part of the outer surface of the No. 1 connecting plate, a No. 2 connecting plate is fixedly connected to both ends of the outer surface of the rotating shaft, a reinforcing rib is fixedly mounted on one side of the outer surface of the No. 2 connecting plate, a cover plate is fixedly connected to one side of the outer surface of the reinforcing rib, a No. 3 connecting plate is fixedly mounted on one side of the outer surface of the cover plate, a handle is fixedly mounted on the outer surface of the No. 3 connecting plate, a mixing mechanism is arranged inside the mixing box, and a striking mechanism is arranged on the outer surface of the mixing box; The mixing mechanism includes a clamping seat fixedly installed on one side of the outer surface of the mixing box, a No. 1 fixing ring is fixedly installed on one side of the outer surface of the clamping seat, and a reduction box is fixedly connected to one end surface of the No. 1 fixing ring, and a reduction box is fixedly connected to the output end of the reduction box, a transmission shaft is connected to one end of the transmission shaft, a fixed cylinder is fixedly connected to the outer surface of the fixed cylinder, a support rod is fixedly connected to one end of the support rod, a weak magnetic spiral plate is fixedly connected to the bottom surface of the reduction box, a driving motor is fixedly connected to one side of the outer surface of the transmission shaft, and a mounting ring is rotatably connected to the other side of the outer surface of the transmission shaft. A through hole runs through one side of the outer surface of the mixing box, and the fixed cylinder passes through the through hole to be connected to the output end of the reduction box, and a mounting seat is fixedly installed on one side of the outer surface of the mixing box, and one side of the outer surface of the mounting seat is fixedly connected to one end of the reduction box; a support rod is fixedly installed on the outer surface of the fixed cylinder, and the weak magnetic spiral plate is fixedly connected to the support rod. When the transmission shaft rotates to drive the fixed cylinder to rotate, the fixed cylinder rotates to drive the support rod and the weak magnetic spiral plate to rotate, so as to achieve stirring and mixing of the metal powder, and the weak magnetic spiral plate magnetically stirs the metal powder when rotating, thereby improving the stirring effect; The striking mechanism includes a horizontal column fixedly installed on one side of the outer surface of the fixing frame, a circular hole penetrates through one side of the outer surface of the horizontal column, a No. 1 cylinder is fixedly installed on one side of the outer surface of the horizontal column, the output end of the No. 1 cylinder is connected to a No. 1 telescopic column, and a protrusion is fixedly connected to the surface of one end of the No. 1 telescopic column; by setting the striking mechanism, after the metal powder is mixed in the mixing box, the No. 1 cylinder is operated, the output end of the No. 1 cylinder pushes the No. 1 telescopic column to move repeatedly, and the No. 1 telescopic column drives the protrusion fixedly connected to the surface of one end thereof to move repeatedly, and strikes the mixing box, so that the metal powder adsorbed by the weak magnetic spiral plate falls off, thereby avoiding the waste caused by the metal powder remaining in the mixing box. A discharging mechanism is arranged at the lower part of the outer surface of the mixing box, and the discharging mechanism includes a square plate fixedly installed on one side of the lower part of the outer surface of the mixing box, a No. 2 cylinder is fixedly installed on one side of the outer surface of the square plate, the output end of the No. 2 cylinder is connected to a No. 2 telescopic column, a connecting shaft is rotatably installed at one end of the No. 2 telescopic column, a triangular plate is fixedly connected to the outer surface of the connecting shaft, and a slide plate is fixedly installed on the upper surface of the triangular plate; mounting frames are fixedly installed on both sides of the lower part of the outer surface of the mixing box, a fixing frame is fixedly installed on the bottom surface of the mounting frame, and the inner wall of the fixing frame and the bottom surface of the mounting frame are slidably connected to the upper surface of the slide plate.

[0013] In this embodiment, metal powder is placed inside the mixing box, and the power supply of the driving motor is started. The power generated by the driving motor is transmitted to the reduction box, and the output end of the reduction box drives the transmission shaft to rotate, and the transmission shaft drives the fixed cylinder to rotate. When the fixed cylinder rotates, the weak magnetic spiral plate is driven to rotate through the support rod to stir and mix the metal powder. When the weak magnetic spiral plate rotates, its weak magnetism magnetically attracts and stirs the metal powder, thereby improving the stirring and mixing effect and the stirring uniformity. After the metal powder is mixed, the No. 2 cylinder is operated, and the output end of the No. 2 cylinder drives the No. 2 telescopic column to move, and the No. 2 telescopic column drives the slide plate to slide on the bottom surface of the mounting frame through the connecting shaft and the triangular plate to discharge the metal powder. When discharging the metal powder, the No. 1 cylinder is operated, and the output end of the No. 1 cylinder drives the No. 1 telescopic column to move, and the No. 1 telescopic column drives the protrusion to move, and the outer surface of the mixing box is repeatedly struck, and the metal powder magnetically attracted to the outer surface of the weak magnetic spiral plate is struck and falls off, thereby avoiding any metal powder residue in the mixing box.

[0014] A further improvement of the technical solution of the present invention is that mounting frames are fixedly installed on both sides of the lower part of the outer surface of the mixing box, a fixing frame is fixedly installed on the bottom surface of the mounting frame, and the inner wall of the fixing frame and the bottom surface of the mounting frame are slidably connected to the upper surface of the slide plate.

[0015] A further improvement of the technical solution of the present invention is that a through hole is penetrated on one side of the outer surface of the mixing box, the fixed cylinder passes through the through hole and is connected to the output end of the reduction box, a mounting seat is fixedly installed on one side of the outer surface of the mixing box, and one side of the outer surface of the mounting seat is fixedly connected to one end of the reduction box.

[0016] Embodiment 2: Based on Embodiment 1: a limiting mechanism is provided on the upper part of one side of the outer surface of the mixing box, the limiting mechanism includes a fixed block fixedly installed on the upper part of one side of the outer surface of the mixing box, one side of the outer surface of the fixed block is movably connected with a No. 4 connecting plate, the outer surface of the No. 4 connecting plate is movably connected with an adjustable wrench, one end of the adjustable wrench is connected with a limiting bolt, and one side of the outer surface of the reinforcing rib is provided with a bolt hole; A No. 1 connecting rod is arranged on both sides of the outer surface of the mixing box, and a hydraulic cylinder is rotatably installed at one end of the No. 1 connecting rod, and a support rod is connected to the output end of the hydraulic cylinder. A No. 2 connecting rod is movably installed at one end of the support rod, and one end surface of the No. 2 connecting rod is fixedly connected to one side of the outer surface of the cover plate.

[0017] In this embodiment, when metal powder is placed inside the mixing box for stirring and mixing, the handle is pulled to drive the No. 3 connecting plate to move downward, and the cover plate is driven to move until the bottom side of the cover plate contacts the upper surface of the mixing box. When the cover plate moves, the strut is driven to move through the No. 2 connecting rod, so that the strut is recovered into the hydraulic cylinder. The adjustable wrench is pulled upward, and the adjustable wrench pulls the No. 4 connecting plate to move so that the limit bolt is located above the bolt hole. The adjustable wrench is then moved in the opposite direction and the limit bolt is moved downward so that the limit bolt contacts the upper surface of the bolt hole. The limit bolt is rotated to engage and enter the bolt hole to fix the cover plate, thereby preventing metal powder from splashing out of the mixing box and causing waste during stirring and mixing.

[0018] A further improvement of the technical solution of the present invention is that a shock absorbing mechanism is arranged on the bottom surface of the base plate, the shock absorbing mechanism includes a shock absorbing unit and a buffer unit, the shock absorbing unit includes an upper connecting head fixedly connected to the bottom surface of the base plate, the bottom end of the upper connecting head is fixedly connected to a fixing rod, a circular piece is fixedly installed on the bottom surface of the fixing rod, a compression spring is fixedly connected to the bottom surface of the circular piece, a bottom end of the compression spring is fixedly connected to a bottom column, a pull rod is movably installed on the upper surface of the bottom column, a lower connecting head is fixedly installed on the bottom surface of the bottom column, a connecting column is fixedly installed on the bottom surface of the lower connecting head, and a fixed base is fixedly installed on the bottom surface of the connecting column.

[0019] A further improvement of the technical solution of the present invention is that the buffer unit includes a square seat fixedly installed in the middle position of the upper surface of the fixed base, and buffer cotton columns are fixedly installed on the upper surface of the square seat, and the buffer cotton columns are distributed in sequence on the upper surface of the square seat at equal intervals.

[0020] Embodiment 3: On the basis of Embodiment 1 and Embodiment 2: A shock absorbing mechanism is arranged on the bottom surface of the bottom plate, the shock absorbing mechanism includes a shock absorbing unit and a buffer unit, the shock absorbing unit includes an upper connecting head fixedly connected to the bottom surface of the bottom plate, a fixing rod is fixedly connected to the bottom end of the upper connecting head, a circular sheet is fixedly installed on the bottom surface of the fixing rod, a compression spring is fixedly connected to the bottom surface of the circular sheet, a bottom column is fixedly connected to the bottom end of the compression spring, a pull rod is movably installed on the upper surface of the bottom column, a lower connecting head is fixedly installed on the bottom surface of the bottom column, a connecting column is fixedly installed on the bottom surface of the lower connecting head, and a fixed base is fixedly installed on the bottom surface of the connecting column; The buffer unit includes a square seat fixedly installed in the middle position of the upper surface of the fixed base, and buffer cotton columns are fixedly installed on the upper surface of the square seat. The buffer cotton columns are distributed on the upper surface of the square seat in equal intervals. By arranging a shock-absorbing mechanism, when the metal powder is rotated, stirred and mixed in the mixing box, when vibration is generated due to the rotation, the upper connecting head moves with the fixed rod and the circular sheet to squeeze the compression spring, and at the same time squeeze the pull rod, so that the compression spring generates a restoring elastic force to reversely buffer and damp the vibration, thereby achieving a more stable mixing of the metal powder.

[0021] In this embodiment, the upper connecting head moves with the fixed rod and the circular piece to squeeze the compression spring and the pull rod at the same time, so that the compression spring generates a restoring elastic force to reversely buffer and reduce vibration, thereby achieving a more stable mixing of metal powder. When the base plate descends, its bottom surface contacts the upper outer surface of the buffer cotton column, and the buffer cotton column buffers the contact between the base plate and the upper surface of the square seat, thereby protecting the bottom surface of the base plate.

[0022] A further improvement of the technical solution of the present invention is that: there is a No. 1 connecting rod on both sides of the outer surface of the mixing box, one end of which is rotatably mounted with a hydraulic cylinder, the output end of the hydraulic cylinder is connected to a support rod, one end of the support rod is movably mounted with a No. 2 connecting rod, and one end surface of the No. 2 connecting rod is fixedly connected to one side of the outer surface of the cover plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The present invention fixes a support rod on the outer surface of a fixed cylinder, and fixes a weak magnetic spiral plate through the support rod. When the transmission shaft rotates to drive the fixed cylinder to rotate, the rotation of the fixed cylinder drives the support rod and the weak magnetic spiral plate to rotate, thereby achieving stirring and mixing of the metal powder. The weak magnetic spiral plate magnetically stirs the metal powder when rotating, thereby improving the stirring effect.

[0024] The present invention provides a striking mechanism. After the metal powders are mixed in a mixing box, a No. 1 cylinder is operated. The output end of the No. 1 cylinder pushes a No. 1 telescopic column to move repeatedly. The No. 1 telescopic column drives a protrusion fixedly connected to a surface of one end thereof to move repeatedly, and strikes the mixing box, so that the metal powders adsorbed by the weak magnetic spiral plate fall off, thereby avoiding waste caused by residual metal powders in the mixing box.

[0025] The present invention provides a shock absorbing mechanism. When the metal powder is rotated, stirred and mixed in the mixing box, vibration is generated due to the rotation. The upper connecting head, the fixed rod and the circular sheet move to squeeze the compression spring, and at the same time squeeze the pull rod, so that the compression spring generates a restoring elastic force to reversely buffer and damp the vibration, thereby achieving a more stable mixing of the metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a raw material mixing device for metal powder injection molding from a first perspective; Figure 2 This is a schematic diagram of the cover structure of a raw material mixing device for metal powder injection molding; Figure 3 This is a schematic diagram of the internal structure of a mixing box of a raw material mixing device for metal powder injection molding; Figure 4 This is a schematic diagram of the structure of a mixing mechanism of a raw material mixing device for metal powder injection molding; Figure 5This is a schematic diagram of the striking mechanism structure of a raw material mixing device for metal powder injection molding; Figure 6 This is a schematic diagram of the structure of the shock absorbing mechanism of the raw material mixing device for metal powder injection molding; Figure 7 This is a schematic diagram of the structure of a shock absorbing unit of a raw material mixing device for metal powder injection molding; Figure 8 This is a schematic diagram of the structure of the discharging mechanism of the raw material mixing device for metal powder injection molding; Fig. 9 This is a schematic diagram of the structure of the limiting mechanism of the raw material mixing device for metal powder injection molding.

[0027] In the figure: 1, fixed frame; 2, bottom plate; 3, mixing box; 301, through hole; 4, No. 1 connecting plate; 401, rotating shaft; 402, No. 2 connecting plate; 403, reinforcing rib; 404, cover plate; 405, No. 3 connecting plate; 406, handle; 407, No. 1 connecting rod; 408, hydraulic cylinder; 409, support rod; 410, No. 2 connecting rod; 411, fixed block; 412, No. 4 connecting plate; 413, adjustable wrench; 414, limit bolt; 415, bolt hole; 5, driving motor; 501, reduction box; 502, No. 1 fixing ring; 503, transmission shaft; 504, mounting ring; 505, fixed cylinder; 506, support rod; 507, Weak magnetic spiral plate; 508, No. 2 fixing ring; 509, clamping seat; 510, mounting seat; 6, horizontal column; 601, round hole; 602, No. 1 cylinder; 603, No. 1 telescopic column; 604, bump; 7, square plate; 701, No. 2 cylinder; 702, No. 2 telescopic column; 703, connecting shaft; 704, triangular plate; 705, slide plate; 706, mounting frame; 707, fixing frame; 8, upper connector; 801, fixing rod; 802, circular sheet; 803, compression spring; 804, bottom column; 805, pull rod; 806, lower connector; 807, connecting column; 808, fixing base; 809, square seat; 810, buffer cotton column. DETAILED DESCRIPTION

[0028] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0029] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0030] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0031] Reference Figure 1 - Fig. 9 , the present invention provides three technical solutions: Embodiment 1: A raw material mixing device for metal powder injection molding, comprising a fixed frame 1 and a bottom plate 2, the bottom plate 2 is fixedly installed on the bottom surface of the fixed frame 1, a mixing box 3 is fixedly connected to the upper part of the inner wall of the fixed frame 1, a No. 1 connecting plate 4 is fixedly installed on one side of the outer surface of the mixing box 3, a rotating shaft 401 is rotatably installed on the upper part of the outer surface of the No. 1 connecting plate 4, a No. 2 connecting plate 402 is fixedly connected to both ends of the outer surface of the rotating shaft 401, a reinforcing rib 403 is fixedly installed on one side of the outer surface of the No. 2 connecting plate 402, a cover plate 404 is fixedly connected to one side of the outer surface of the reinforcing rib 403, a No. 3 connecting plate 405 is fixedly installed on one side of the outer surface of the cover plate 404, a handle 406 is fixedly installed on the outer surface of the No. 3 connecting plate 405, a mixing mechanism is arranged inside the mixing box 3, and a striking mechanism is arranged on the outer surface of the mixing box 3; The mixing mechanism includes a clamping seat 509 fixedly installed on one side of the outer surface of the mixing box 3, a No. 1 fixing ring 502 is fixedly installed on one side of the outer surface of the clamping seat 509, a reduction box 501 is fixedly connected to one end surface of the No. 1 fixing ring 502, a transmission shaft 503 is connected to the output end of the reduction box 501, a fixed cylinder 505 is fixedly connected to one end of the transmission shaft 503, a support rod 506 is fixedly connected to the outer surface of the fixed cylinder 505, a weak magnetic spiral plate 507 is fixedly connected to one end of the support rod 506, a driving motor 5 is fixedly connected to the bottom surface of the reduction box 501, a mounting ring 504 is rotatably connected to one side of the outer surface of the transmission shaft 503, and a No. 2 fixing ring 508 is rotatably connected to the other side of the outer surface of the transmission shaft 503; A through hole 301 is penetrated on one side of the outer surface of the mixing box 3, and the fixed cylinder 505 passes through the through hole 301 and is connected to the output end of the reduction box 501. A mounting seat 510 is fixedly installed on one side of the outer surface of the mixing box 3, and one side of the outer surface of the mounting seat 510 is fixedly connected to one end of the reduction box 501; by fixing a support rod 506 on the outer surface of the fixed cylinder 505, and fixing a weak magnetic spiral plate 507 through the support rod 506, when the transmission shaft 503 rotates to drive the fixed cylinder 505 to rotate, the fixed cylinder 505 rotates to drive the support rod 506 and the weak magnetic spiral plate 507 to rotate, so as to achieve stirring and mixing of the metal powder, and the weak magnetic spiral plate 507 performs magnetic attraction stirring on the metal powder when rotating, thereby improving the stirring effect; The striking mechanism includes a horizontal column 6 fixedly installed on one side of the outer surface of the fixing frame 1, a circular hole 601 penetrates through one side of the outer surface of the horizontal column 6, a cylinder 602 is fixedly installed on one side of the outer surface of the horizontal column 6, the output end of the cylinder 602 is connected to a telescopic column 603, and a protrusion 604 is fixedly connected to one end surface of the telescopic column 603; by setting the striking mechanism, after the metal powder is mixed in the mixing box 3, the cylinder 602 is operated, the output end of the cylinder 602 pushes the telescopic column 603 to move repeatedly, and the telescopic column 603 drives the protrusion 604 fixedly connected to one end surface to move repeatedly, and the mixing box 3 is struck, so that the metal powder adsorbed by the weak magnetic spiral plate 507 falls off, avoiding the waste caused by the metal powder remaining in the mixing box 3. A discharging mechanism is provided at the lower part of the outer surface of the mixing box 3, and the discharging mechanism includes a square plate 7 fixedly installed on one side of the lower part of the outer surface of the mixing box 3, a No. 2 cylinder 701 is fixedly installed on one side of the outer surface of the square plate 7, the output end of the No. 2 cylinder 701 is connected to the No. 2 telescopic column 702, a connecting shaft 703 is rotatably installed at one end of the No. 2 telescopic column 702, a triangular plate 704 is fixedly connected to the outer surface of the connecting shaft 703, and a slide plate 705 is fixedly installed on the upper surface of the triangular plate 704; mounting frames 706 are fixedly installed on both sides of the lower part of the outer surface of the mixing box 3, a fixed frame 707 is fixedly installed on the bottom surface of the mounting frame 706, and the inner wall of the fixed frame 707 and the bottom surface of the mounting frame 706 are slidably connected to the upper surface of the slide plate 705.

[0032] In this embodiment, metal powder is placed inside the mixing box 3, and the power supply of the driving motor 5 is started. The power generated by the driving motor 5 is transmitted to the reduction box 501, and the output end of the reduction box 501 drives the transmission shaft 503 to rotate, and the transmission shaft 503 drives the fixed cylinder 505 to rotate. When the fixed cylinder 505 rotates, the weak magnetic spiral plate 507 is driven to rotate through the support rod 506 to stir and mix the metal powder. When the weak magnetic spiral plate 507 rotates, its weak magnetic property magnetically stirs the metal powder, thereby improving the stirring and mixing effect and the stirring uniformity. After the metal powder is mixed, the No. 2 gas is operated. Cylinder 701, the output end of the No. 2 cylinder 701 drives the No. 2 telescopic column 702 to move, and the No. 2 telescopic column 702 drives the slide plate 705 to slide on the bottom surface of the mounting frame 706 through the connecting shaft 703 and the triangular plate 704 to discharge the metal powder. When discharging the metal powder, operate the No. 1 cylinder 602, the output end of the No. 1 cylinder 602 drives the No. 1 telescopic column 603 to move, and the No. 1 telescopic column 603 drives the protrusion 604 to move, and repeatedly hits the outer surface of the mixing box 3, and hits and falls off the metal powder magnetically attracted to the outer surface of the weak magnetic spiral plate 507, so as to avoid the metal powder remaining in the mixing box 3.

[0033] Embodiment 2: On the basis of the first embodiment: a limiting mechanism is provided on the upper part of one side of the outer surface of the mixing box 3, the limiting mechanism includes a fixing block 411 fixedly installed on the upper part of one side of the outer surface of the mixing box 3, one side of the outer surface of the fixing block 411 is movably connected with a fourth connecting plate 412, the outer surface of the fourth connecting plate 412 is movably connected with an adjustable wrench 413, one end of the adjustable wrench 413 is connected with a limiting bolt 414, and one side of the outer surface of the reinforcing rib 403 is provided with a bolt hole 415; There is a No. 1 connecting rod 407 on both sides of the outer surface of the mixing box 3, and a hydraulic cylinder 408 is rotatably installed at one end of the No. 1 connecting rod 407. The output end of the hydraulic cylinder 408 is connected to a support rod 409, and a No. 2 connecting rod 410 is movably installed at one end of the support rod 409. One end surface of the No. 2 connecting rod 410 is fixedly connected to one side of the outer surface of the cover plate 404.

[0034] In this embodiment, when the metal powder is placed inside the mixing box 3 for stirring and mixing, the handle 406 is pulled to drive the No. 3 connecting plate 405 to move downward, and the cover plate 404 is driven to move until the bottom side of the cover plate 404 contacts the upper surface of the mixing box 3. When the cover plate 404 moves, the strut 409 is driven to move through the No. 2 connecting rod 410, so that the strut 409 is recovered into the hydraulic cylinder 408, and the movable wrench 413 is pulled upward. The movable wrench 413 pulls the No. 4 connecting plate 412 to move, so that the limit bolt 414 is located above the bolt hole 415, and then the movable wrench 413 is moved in the opposite direction, and the limit bolt 414 is moved downward so that the limit bolt 414 contacts the upper surface of the bolt hole 415, and the limit bolt 414 is rotated to engage and enter the bolt hole 415 to fix the cover plate 404 to prevent the metal powder from splashing out of the mixing box 3 and causing waste during stirring and mixing.

[0035] Embodiment three: On the basis of the first and second embodiments: a shock absorbing mechanism is provided on the bottom surface of the bottom plate 2, the shock absorbing mechanism includes a shock absorbing unit and a buffer unit, the shock absorbing unit includes an upper connector 8 fixedly connected to the bottom surface of the bottom plate 2, a fixing rod 801 is fixedly connected to the bottom end of the upper connector 8, a circular sheet 802 is fixedly installed on the bottom surface of the fixing rod 801, a compression spring 803 is fixedly connected to the bottom surface of the circular sheet 802, a bottom end of the compression spring 803 is fixedly connected to a bottom column 804, a pull rod 805 is movably installed on the upper surface of the bottom column 804, a lower connector 806 is fixedly installed on the bottom surface of the bottom connector 806, a connecting column 807 is fixedly installed on the bottom surface of the connecting column 807, and a fixed base 808 is fixedly installed on the bottom surface of the connecting column 807; The buffer unit includes a square seat 809 fixedly installed in the middle position of the upper surface of the fixed base 808, and buffer cotton columns 810 are fixedly installed on the upper surface of the square seat 809. The buffer cotton columns 810 are distributed on the upper surface of the square seat 809 in an equidistant order. By setting a shock absorbing mechanism, when the metal powder is rotated, stirred and mixed in the mixing box 3, when vibration is generated due to the rotation, the upper connecting head 8 moves with the fixed rod 801 and the circular sheet 802 to squeeze the compression spring 803, and at the same time squeeze the pull rod 805, so that the compression spring 803 generates a restoring elastic force to reversely buffer and damp the vibration, thereby achieving a more stable mixing of the metal powder.

[0036] In this embodiment, the upper connecting head 8 moves together with the fixed rod 801 and the circular piece 802 to squeeze the compression spring 803, and at the same time squeeze the pull rod 805, so that the compression spring 803 generates a restoring elastic force to reversely buffer and reduce the vibration, thereby achieving a more stable mixing of the metal powder. When the base plate 2 descends, its bottom surface contacts the upper outer surface of the buffer cotton column 810, and the buffer cotton column 810 buffers the contact between the base plate 2 and the upper surface of the square seat 809, thereby protecting the bottom surface of the base plate 2.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. 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 these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing device for metal powder injection molding, comprising a fixed frame (1) and a bottom plate (2), the bottom plate (2) being fixedly mounted on the bottom surface of the fixed frame (1), a mixing box (3) being fixedly connected to the upper portion of the inner wall of the fixed frame (1), a first connecting plate (4) being fixedly mounted on one side of the outer surface of the mixing box (3), a rotating shaft (401) being rotatably mounted on the upper portion of the outer surface of the first connecting plate (4), a second connecting plate (402) being fixedly connected to both ends of the outer surface of the rotating shaft (401), a reinforcing rib (403) being fixedly mounted on one side of the outer surface of the second connecting plate (402), a cover plate (404) being fixedly connected to one side of the outer surface of the reinforcing rib (403), a third connecting plate (405) being fixedly mounted on one side of the outer surface of the cover plate (404), a handle (406) being fixedly mounted on the outer surface of the third connecting plate (405), and characterized in that: A mixing mechanism is provided inside the mixing box (3), and a striking mechanism is provided on the outer surface of the mixing box (3); The mixing mechanism comprises a clamping seat (509) fixedly mounted on one side of the outer surface of the mixing box (3); a first fixing ring (502) is fixedly mounted on one side of the outer surface of the clamping seat (509); a reduction box (501) is fixedly connected to one end surface of the first fixing ring (502); a transmission shaft (503) is connected to the output end of the reduction box (501); a fixing cylinder (505) is fixedly connected to one end of the transmission shaft (503); a support rod (506) is fixedly connected to the outer surface of the fixing cylinder (505); a weak magnetic spiral plate (507) is fixedly connected to one end of the support rod (506); a driving motor (5) is fixedly connected to the bottom surface of the reduction box (501); a mounting ring (504) is rotatably connected to one side of the outer surface of the transmission shaft (503); and a second fixing ring (508) is rotatably connected to the other side of the outer surface of the transmission shaft (503).

2. A raw material mixing device for metal powder injection molding according to claim 1, characterized in that: The striking mechanism comprises a horizontal column (6) fixedly mounted on one side of the outer surface of the fixing frame (1), a circular hole (601) passing through one side of the outer surface of the horizontal column (6), a first cylinder (602) fixedly mounted on one side of the outer surface of the horizontal column (6), an output end of the first cylinder (602) connected to a first telescopic column (603), and a protrusion (604) fixedly connected to one end surface of the first telescopic column (603).

3. The raw material mixing device for metal powder injection molding according to claim 1, characterized in that: A limiting mechanism is provided at an upper portion of one side of the outer surface of the mixing box (3), the limiting mechanism comprising a fixing block (411) fixedly mounted at an upper portion of one side of the outer surface of the mixing box (3), a fourth connecting plate (412) being movably connected to one side of the outer surface of the fixing block (411), an outer surface of the fourth connecting plate (412) being movably connected to an adjustable wrench (413), one end of the adjustable wrench (413) being connected to a limiting bolt (414), and a bolt hole (415) being provided at one side of the outer surface of the reinforcing rib (403).

4. The raw material mixing device for metal powder injection molding according to claim 1, characterized in that: A discharging mechanism is provided at the lower portion of the outer surface of the mixing box (3), the discharging mechanism comprising a square plate (7) fixedly mounted on one side of the lower portion of the outer surface of the mixing box (3), a No. 2 air cylinder (701) fixedly mounted on one side of the outer surface of the square plate (7), an output end of the No. 2 air cylinder (701) connected to a No. 2 telescopic column (702), a connecting shaft (703) rotatably mounted at one end of the No. 2 telescopic column (702), a triangular plate (704) fixedly connected to the outer surface of the connecting shaft (703), and a sliding plate (705) fixedly mounted on the upper surface of the triangular plate (704).

5. The raw material mixing device for metal powder injection molding according to claim 1, characterized in that: Mounting frames (706) are fixedly mounted on both sides of the lower portion of the outer surface of the mixing box (3), a fixing frame (707) is fixedly mounted on the bottom surface of the mounting frame (706), and the inner wall of the fixing frame (707) and the bottom surface of the mounting frame (706) are slidably connected to the upper surface of the slide plate (705).

6. A raw material mixing device for metal powder injection molding according to claim 1, characterized in that: A through hole (301) is formed on one side of the outer surface of the mixing box (3); the fixed cylinder (505) passes through the through hole (301) and is connected to the output end of the reduction box (501); a mounting seat (510) is fixedly mounted on one side of the outer surface of the mixing box (3); and one side of the outer surface of the mounting seat (510) is fixedly connected to one end of the reduction box (501).

7. The raw material mixing device for metal powder injection molding according to claim 1, characterized in that: A shock absorbing mechanism is provided on the bottom surface of the base plate (2), the shock absorbing mechanism comprising a shock absorbing unit and a buffer unit, the shock absorbing unit comprising an upper connecting head (8) fixedly connected to the bottom surface of the base plate (2), the bottom end of the upper connecting head (8) being fixedly connected to a fixing rod (801), the bottom surface of the fixing rod (801) being fixedly mounted with a circular sheet (802), the bottom surface of the circular sheet (802) being fixedly connected with a compression spring (803), the bottom end of the compression spring (803) being fixedly connected with a bottom column (804), the upper surface of the bottom column (804) being movably mounted with a pull rod (805), the bottom surface of the bottom column (804) being fixedly mounted with a lower connecting head (806), the bottom surface of the lower connecting head (806) being fixedly mounted with a connecting column (807), and the bottom surface of the connecting column (807) being fixedly mounted with a fixed base (808).

8. A raw material mixing device for metal powder injection molding according to claim 7, characterized in that: The buffer unit comprises a square seat (809) fixedly mounted in the middle of the upper surface of the fixed base (808), and buffer cotton columns (810) are fixedly mounted on the upper surface of the square seat (809). The buffer cotton columns (810) are distributed in sequence at equal intervals on the upper surface of the square seat (809).

9. The raw material mixing device for metal powder injection molding according to claim 1, characterized in that: A No. 1 connecting rod (407) is provided on both sides of the outer surface of the mixing box (3); a hydraulic cylinder (408) is rotatably mounted on one end of the No. 1 connecting rod (407); a support rod (409) is connected to the output end of the hydraulic cylinder (408); a No. 2 connecting rod (410) is movably mounted on one end of the support rod (409); and one end surface of the No. 2 connecting rod (410) is fixedly connected to one side of the outer surface of the cover plate (404).

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