A thin-walled bearing component for a circuit board and a powder metallurgy forming device thereof

Abstract

The present invention relates to the technical field related to powder metallurgy extrusion molding, and discloses a thin-walled carrier of a circuit board and a powder metallurgy molding device thereof, wherein the device comprises a work surface and a pushing box; the device also comprises a powder taking mechanism, an automatic powder cleaning mechanism, a powder shifting mechanism and a driving motor; the automatic powder cleaning mechanism comprises a powder picking module and a powder sweeping module; when the powder taking mechanism is in a state of applying a force to the powder picking module with an interaction force, the powder picking module is in an energy storage state; when the powder taking mechanism and the powder picking module are in a state of no interaction force, the powder picking module is in an automatic energy release state; thereby, metal powder is prevented from remaining on the work surface, and at the same time, the powder shifting mechanism and the setting of the powder sweeping module driven synchronously by the powder shifting mechanism are used to avoid the problem of uneven distribution of metal powder in a mold forming part due to the metal powder not falling completely; at the same time, the delivered excess metal powder can be picked up and cleaned.

Description

Technical Field

[0001] The invention relates to the technical field related to powder metallurgy extrusion molding, and in particular to a circuit board thin-wall bearing component and a powder metallurgy molding device thereof. Background Art

[0002] The thin-walled bearing of the circuit board is a shell component used to support and fix the circuit board. As electronic equipment develops towards miniaturization and lightweight, the quality and performance requirements of thin-walled bearings are getting higher and higher. Powder metallurgy forming technology provides a feasible way to solve these problems. Powder metallurgy forming technology is to fill loose metal, ceramic or other material powders into a forming mold, and apply pressure to the mold to form the powder material into a semi-finished product with a predetermined geometric shape, size, density and strength. After demolding, the semi-finished blank is obtained, and finally the blank is sintered and heat treated to obtain the finished product. In order to better ensure the stable operation of the circuit board, metal powder is usually used as the production raw material to produce thin-walled bearings with high strength, hardness, toughness and the ability to withstand various stresses that the circuit board is subjected to during use.

[0003] In the powder metallurgy forming process of the existing thin-walled circuit board carrier, the pusher box used to push the metal powder is directly placed on the work surface and has an open bottom. That is to say, after the powder supply mechanism adds metal powder into the pusher box, the pusher box is pushed to the mold mechanism and the pusher box is driven to reset, the metal powder in the pusher box is concentrated and accumulated in the pusher box and is always in direct contact with the work surface. Due to the performance requirements of the thin-walled circuit board carrier, the particle size distribution of the metal powder should be uniform. Generally, the smaller the particle size, the better the density and performance of the formed parts. As a result, metal powder residue is easily generated during the reciprocating movement of the pusher box, resulting in waste of resources and excessive metal powder. Small particle size may affect the fluidity and formability of the powder. After the metal powder is concentrated in the push box and the workbench provides initial flat support for the metal powder, powder aggregation is likely to occur due to the friction and cohesion between the powder particles, causing the metal powder to not fall completely in the mold mechanism, just like the hole in an arch bridge, resulting in uneven distribution of metal powder in the mold mechanism and reduced product quality. Simple shaking of the push box may not eliminate the aggregation of metal powder and the problem of uneven distribution of metal powder in the mold mechanism still exists. At the same time, due to the thin-walled characteristics of the carrier, the strength, stability and other performance of the thin-walled carrier of the circuit board will be further insufficient. Summary of the invention

[0004] The object of the present invention is to provide a powder metallurgy forming device for a thin-walled carrier of a circuit board to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] An embodiment of the present invention provides a powder metallurgy forming device for a thin-walled bearing member of a circuit board, the device comprising a work surface and a material pushing box arranged on the work surface; the device further comprises:

[0007] The powder taking mechanism is arranged on the inner wall at the bottom of the pushing box body, and is used to provide a carrying space for the metal powder, quantitatively take the powder and deliver it, and provide driving force;

[0008] Automatic powder cleaning mechanism, which is arranged on the powder taking mechanism and is used to collect the residual metal powder on the work surface;

[0009] The powder-moving mechanism is arranged between the powder-taking mechanism and the top wall of the pushing box, and is used to dynamically move the metal powder above the powder-taking mechanism and provide driving force for the automatic powder-cleaning mechanism;

[0010] A driving motor is used for intermittently and synchronously driving a powder-pumping mechanism and a powder-taking mechanism;

[0011] Wherein, the automatic powder cleaning mechanism comprises:

[0012] The powder picking module is arranged on one side of the powder picking mechanism and is used for picking up the residual metal powder and storing and automatically releasing the energy required for picking up;

[0013] The powder sweeping module is arranged at the other side of the powder taking mechanism and is used to sweep the metal powder on the powder picking module;

[0014] Wherein, the powder-moving mechanism synchronously drives the powder-sweeping module;

[0015] When the powder taking mechanism is in a state of exerting a force on the powder picking module with an interaction force, the powder picking module is in an energy storage state;

[0016] When there is no interaction force between the powder taking mechanism and the powder picking module, the powder picking module is in an automatic energy release state.

[0017] Furthermore, the powder stirring mechanism comprises:

[0018] An installation frame is fixedly arranged on the top of the push box;

[0019] The elastic expansion member is symmetrically fixed on both sides of the top of the material taking mechanism;

[0020] A transition powder-digging frame is fixedly arranged on the top of the telescopic end of the elastic telescopic member;

[0021] The toggling module is arranged on the top wall of the pushing box and is located in the transition powder toggling frame, and is used to drive the transition powder toggling frame and dynamically toggling the metal powder in the transition powder toggling frame;

[0022] The transmission module is arranged in the installation frame and is used for transmitting power between the driving motor and the toggle module;

[0023] Wherein, a plurality of evenly distributed sieve holes are provided at the bottom of the transition powder mixing frame.

[0024] Furthermore, the elastic telescopic member is composed of a fixed outer tube and a telescopic inner rod elastically and slidably arranged in the fixed outer tube;

[0025] The transition powder-drilling frame is fixedly arranged on the top end of the telescopic inner rod.

[0026] Furthermore, the top wall of the push box body is symmetrically provided with guide slots, the top wall of the push box body is fixedly provided with first brackets at intervals, the top wall of the push box body is fixedly provided with second brackets, and the transmission module includes:

[0027] A driving shaft is rotatably disposed on the mounting frame and the second bracket;

[0028] The transmission unit corresponds to the guide slide groove one by one and is symmetrically arranged in the installation frame;

[0029] One end of the driving shaft is detachably connected to the output shaft of the driving motor, and the other end of the driving shaft is connected to the transmission unit via a bevel gear pair.

[0030] Furthermore, the toggle module includes:

[0031] The guide sliding blocks correspond to the guide sliding grooves one by one and are symmetrically slidably arranged in the guide sliding grooves;

[0032] The rotating shaft is turned to correspond to the guide slider one by one, and is rotatably arranged on the guide slider;

[0033] The toggle protrusion group corresponds to the toggle rotating shaft one by one and is symmetrically arranged on the bottom inner wall of the transition powder toggle frame;

[0034] The toggle unit is arranged on a symmetrically arranged toggle shaft;

[0035] Among them, the transmission unit is arranged on the toggle shaft, the toggle protrusion groups are all located on the lateral movement trajectory of adjacent toggle shafts, the bottom end of the toggle shaft is lower than the highest point of the protrusion of the toggle protrusion group; the toggle units located on the symmetrically arranged toggle shafts are staggered.

[0036] Furthermore, the powder taking mechanism comprises:

[0037] A mounting seat, fixedly arranged on the inner wall of the bottom of the push box;

[0038] The powder taking avoidance groove is opened in the middle of the mounting seat, and the top and bottom are both open;

[0039] The powder taking shaft is provided with a damping rotation on the material pushing box, and one end thereof penetrates and rotates on the side wall of the material pushing box;

[0040] The powder taking and delivering roller is fixedly arranged on the powder taking rotating shaft;

[0041] The powder taking trough is provided on the powder taking and delivering roller;

[0042] The powder collecting rotating shaft is connected to the driving shaft through a first transmission member, the powder collecting avoidance groove, the powder collecting rotating shaft and the powder collecting and delivering roller are arranged coaxially, and the arc length corresponding to the powder collecting groove is less than half of the circumference of the powder collecting and delivering roller;

[0043] When the powder picking module corresponds to the area of ​​the powder picking slot, there is no interaction force between the powder picking and feeding roller and the powder picking module, and the powder picking module is in an automatic energy release state;

[0044] When the powder picking module is away from the powder collecting slot, the powder collecting and delivering roller is in a state of exerting force on the powder picking module with an interaction force, and the powder picking module is in an energy storage state.

[0045] Furthermore, a powder picking avoidance cavity is provided inside the mounting seat, an overflow groove is provided on the mounting seat between the powder picking avoidance cavity and the powder taking avoidance groove, a powder picking avoidance groove is provided on the pushing box and the mounting seat, and the powder picking module includes:

[0046] A powder picking shaft is rotatably arranged on the powder picking avoidance cavity;

[0047] The friction wheel is fixedly arranged on the powder picking shaft and interacts with the powder picking and feeding roller intermittently;

[0048] Energy storage spring, at least one set, one end of which is fixed on the powder picking shaft, and the other end is fixed on the inner wall of the powder picking avoidance cavity, for storing energy and providing power;

[0049] A powder picking unit, movably arranged at the powder picking avoidance slot;

[0050] A powder picking power transmission unit is provided between the powder picking shaft and the powder picking unit, and is used to drive the powder picking unit to move horizontally and longitudinally at the same time;

[0051] Wherein, the friction wheel overflows the powder collecting avoidance groove surface through the overflow groove;

[0052] When the powder picking unit is located at the powder picking avoidance groove, the energy storage spring is at the maximum energy storage value, and the lower bottom surface of the powder picking unit and the lower bottom surface of the material pushing box are in the same plane.

[0053] Furthermore, a stepped groove is provided on the inner wall of the powder picking avoidance cavity, and the stepped groove consists of a first flat groove, an inclined groove and a second flat groove, and the height of the second flat groove close to the lower powder through groove is higher than the height of the first flat groove, and the powder picking power transmission unit includes:

[0054] A transition shaft is rotatably arranged on the inner wall of the powder picking and avoiding chamber;

[0055] A driven rotating shaft is rotatably arranged on the inner wall of the powder picking and avoiding chamber;

[0056] A powder picking guide rod is slidably disposed on the inner wall of the powder picking avoidance chamber in a transverse direction;

[0057] A driving telescopic rod is provided in at least one group, one end of which is fixedly provided on the driven rotating shaft, and the other end of which is rotatably provided on the powder picking guide rod;

[0058] A powder picking installation rod, at least one set, is fixedly arranged on the powder picking guide rod away from the driving telescopic rod;

[0059] A powder picking positioning plate is longitudinally slidably arranged on the powder picking mounting rod;

[0060] The longitudinal adjustment rod corresponds to the stepped groove one by one and is fixedly arranged on the side wall of the powder picking positioning plate;

[0061] Among them, the powder picking shaft and the transition shaft are connected by a second transmission member, the transition shaft and the driven shaft are connected by a third transmission member, the step groove is arranged above the powder picking guide rod, the powder picking unit is arranged on the powder picking positioning plate, and the longitudinal adjustment rod is slidably arranged in the step groove.

[0062] Furthermore, the powder picking unit comprises:

[0063] The powder picking connecting plate is in an "L" shape and passes through the powder picking avoidance groove and is fixed on the powder picking positioning plate;

[0064] A powder picking fixing plate, fixedly arranged at the end of the powder picking connecting plate away from the powder picking positioning plate;

[0065] A powder picking sliding plate is elastically slidably arranged at the bottom of the powder picking fixed plate;

[0066] A powder picking rotating plate is elastically rotatably arranged on the powder picking sliding plate;

[0067] When the powder picking fixed plate, the powder picking sliding plate and the powder picking rotating plate are located at the powder picking avoidance groove, the energy storage spring is at the maximum energy storage value, and the lower bottom surfaces of the powder picking sliding plate and the powder picking rotating plate are in the same plane as the lower bottom surface of the pushing box body.

[0068] Furthermore, a powder sweeping avoidance cavity is provided inside the mounting seat, a telescopic inner rod away from the side of the powder picking avoidance cavity penetrates the fixed outer tube and the mounting seat and extends into the powder sweeping avoidance cavity, a powder sweeping avoidance groove is provided on the mounting seat, a powder sweeping baffle is elastically rotatably provided at the bottom of the powder sweeping avoidance groove, and the powder sweeping module comprises:

[0069] A positioning pin is fixedly arranged on the bottom inner wall of the powder sweeping avoidance chamber;

[0070] A cleaning follower rod, the end of which is close to the positioning pin and is rotatably arranged on the positioning pin;

[0071] A cleaning driving rod is elastically slidably arranged in the cleaning driven rod;

[0072] A cleaning brush is fixedly arranged on the cleaning driven rod;

[0073] The powder sweeping power transmission unit is arranged between the telescopic inner rod and the cleaning drive rod, and is used to convert the vertical moving force of the telescopic inner rod into the horizontal swinging force of the cleaning brush;

[0074] Wherein, the length of the cleaning driving rod is shorter than the length of the cleaning driven rod.

[0075] The above solution of the present invention includes at least the following beneficial effects:

[0076] The present invention arranges a powder taking mechanism at the bottom inner wall of the push box body and a driving motor to intermittently and synchronously drive the powder shifting mechanism and the powder taking mechanism, and utilizes the interaction relationship between the powder taking mechanism and the powder picking module to control the picking up of residual metal powder and the energy storage and automatic release required for picking up. During the working process of the powder taking mechanism, the powder shifting mechanism dynamically shifts the metal powder above the powder taking mechanism and provides driving force for the powder sweeping module, thereby forming a powder storage space between the powder taking mechanism and the top inner wall of the push box body, effectively preventing the metal powder from falling directly on the surface of the worktable, thereby preventing the metal powder from being residual in the reciprocating conveying process of the metal powder forming process. The powder is kept on the work surface, and at the same time, the powder shifting mechanism, the relative action relationship between the powder taking mechanism and the powder picking module and the setting of the powder shifting mechanism synchronously driving the powder sweeping module are used to avoid the powder aggregation like the holes of the arch bridge due to the friction and cohesion between the powder particles, thereby avoiding the problem that the metal powder does not fall completely when it is located at the mold forming part, resulting in uneven distribution of the metal powder in the mold forming part and reducing the product quality, thereby ensuring the initial production quality of the product; and at the same time, the excess metal powder delivered can be picked up and cleaned to avoid the metal powder remaining on the work surface and causing waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 A schematic diagram of the overall three-dimensional structure of a powder metallurgy forming device for a thin-walled carrier of a circuit board provided by an embodiment of the present invention;

[0078] Figure 2 Provided in the embodiments of the present invention Figure 1 Schematic diagram of the three-dimensional structure at A in the middle;

[0079] Figure 3 It is a schematic diagram of the three-dimensional structure inside the installation frame in an embodiment of the present invention;

[0080] Figure 4 In the embodiment of the present invention Figure 3 Schematic diagram of the three-dimensional structure at B in the middle;

[0081] Figure 5 It is a schematic diagram of the three-dimensional structure inside the material pushing box in an embodiment of the present invention;

[0082] Figure 6 It is a schematic diagram of the three-dimensional structure of the powder taking module, the powder picking module and the powder sweeping module in an embodiment of the present invention;

[0083] Figure 7 In the embodiment of the present invention Figure 6 Schematic diagram of the three-dimensional structure at C in the middle;

[0084] Figure 8 Schematic diagram of the three-dimensional structure of the local powder sweeping module in an embodiment of the present invention;

[0085] Fig. 9 A schematic diagram of the three-dimensional structure of a thin-walled bearing member of a circuit board provided in an embodiment of the present invention.

[0086] Description of reference numerals:

[0087] In the figure: 1, bearing body; 2, reinforcing rib; 3, first positioning hole; 4, second positioning hole; 5, work surface; 6, powder supply part; 7, molding drive part; 8, mold molding part; 9, push box; 10, demoulding part; 11, driving motor; 12, mounting frame; 13, powder sweeping avoidance cavity; 14, transition powder shifting frame; 15, telescopic inner rod; 16, guide slide; 17, driving shaft; 18, reciprocating screw; 19, driving slider; 20, driving rack; 21, transmission gear; 22, first bracket; 23, guide slider; 24, toggle shaft; 25, bump; 26, toggle unit; 27, mounting seat; 28, powder avoidance groove; 29, powder rotating shaft; 30, powder delivery roller; 31, Powder collection slot; 32. Powder collection avoidance chamber; 33. Powder collection shaft; 34. Friction wheel; 35. Energy storage spring; 36. Transition shaft; 37. Driven shaft; 38. Powder collection guide rod; 39. Driving telescopic rod; 40. Powder collection installation rod; 41. Powder collection positioning plate; 42. Powder collection avoidance slot; 43. Step groove; 44. Longitudinal adjustment rod; 45. Powder collection connecting plate; 46. Powder collection fixing plate; 47. Powder collection sliding plate; 48. Powder collection rotating plate; 49. Powder sweeping avoidance slot; 50. Powder sweeping baffle; 51. Positioning pin; 52. Cleaning driven rod; 53. Cleaning driving rod; 54. Cleaning brush; 55. Rack seat; 56. Powder sweeping transmission wheel; 57. Powder sweeping transmission rack plate; 58. Powder inlet chamber; 59. Baffle door. DETAILED DESCRIPTION

[0088] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0089] like Fig. 9 As shown, an embodiment of the present invention provides a thin-walled carrier for a circuit board, comprising a carrier body 1, the cross-section of the carrier body 1 is U-shaped, a plurality of reinforcing ribs 2 are evenly arranged on the inner wall of the carrier body 1, the reinforcing ribs 2 are composed of lower ribs and upper ribs, the cross-sections of the lower ribs and the upper ribs opposite to the carrier body 1 are trapezoidal, the side slope of the lower ribs is greater than the side slope of the upper ribs, and the lower ribs are fixedly arranged on the carrier body 1.

[0090] Specifically, to ensure that the carrier body 1 is positioned inside the device and the circuit board is positioned on the carrier body 1 , the carrier body 1 is evenly provided with first positioning holes 3 and second positioning holes 4 , and the second positioning holes 4 are located inside the first positioning holes 3 .

[0091] like Figures 1 to 8As shown, a powder metallurgy forming device for a thin-walled carrier of a circuit board comprises a work surface 5, a material pushing box 9 arranged on the work surface 5, a powder supply part 6 for reciprocatingly driving the material pushing box 9 and providing metal powder to the material pushing box 9, a forming driving part 7, a mold forming part 8, and a demoulding part 10 arranged in the work surface 5, and the device also comprises:

[0092] The powder taking mechanism is arranged on the inner wall of the bottom of the pushing box 9, and is used to provide a carrying space for the metal powder, quantitatively take the powder and deliver it, and provide driving force;

[0093] An automatic powder cleaning mechanism is provided on the powder collecting mechanism and is used to collect the residual metal powder on the work surface 5;

[0094] The powder-moving mechanism is arranged between the powder-taking mechanism and the top wall of the pushing box 9, and is used to dynamically move the metal powder above the powder-taking mechanism and provide driving force for the automatic powder-cleaning mechanism;

[0095] A driving motor 11 is used for intermittently and synchronously driving a powder-pumping mechanism and a powder-collecting mechanism;

[0096] Wherein, the automatic powder cleaning mechanism comprises:

[0097] The powder picking module is arranged on one side of the powder picking mechanism and is used for picking up the residual metal powder and storing and automatically releasing the energy required for picking up;

[0098] The powder sweeping module is arranged at the other side of the powder taking mechanism and is used to sweep the metal powder on the powder picking module;

[0099] Wherein, the powder-moving mechanism synchronously drives the powder-sweeping module;

[0100] When the powder taking mechanism is in a state of exerting a force on the powder picking module with an interaction force, the powder picking module is in an energy storage state;

[0101] When there is no interaction force between the powder taking mechanism and the powder picking module, the powder picking module is in an automatic energy release state.

[0102] Specifically, the pusher box 9 and the powder supply part 6 are detachably connected.

[0103] A powder storage space is formed between the powder taking mechanism and the top inner wall of the pushing box 9 to prevent the metal powder from directly acting on the work surface 5 .

[0104] The intermittent pause of the driving motor 11 is achieved by a control unit in the prior art, and the specific structure is not described in detail, as long as the intermittent pause can be achieved.

[0105] Furthermore, a powder lowering groove is provided at the bottom of the pusher box 9 to facilitate the metal powder delivered by the powder taking mechanism to enter the mold forming part 8 .

[0106] Furthermore, a powder inlet for adding metal powder is provided on the side of the push box 9.

[0107] Furthermore, in order to provide stability and guidance when adding metal powder, a powder feeding chamber 58 is fixedly provided on the outer side of the pushing box body 9 located in the powder inlet area, and the powder feeding chamber 58 is detachably connected to the powder adding channel of the powder supply part 6.

[0108] It should be noted that the powder supply unit 6, forming drive unit 7, mold forming unit 8 and demolding unit 10 in the embodiment of the present invention are all existing products in the prior art. The powder supply unit 6, forming drive unit 7, mold forming unit 8 and demolding unit 10 mentioned in the embodiment of the present invention are all existing matching products selected on the market according to the use needs and the requirements of the installation space. We just use them and do not improve them. These products are equipped with corresponding instructions and technical support. Therefore, in the embodiment of the present invention, we only need to complete the assembly according to the instructions and technical support and then use them. The structural diagram of the powder supply unit 6, forming drive unit 7, mold forming unit 8 and demolding unit 10 in the accompanying drawings is only for illustration. Therefore, the powder supply unit 6, forming drive unit 7, mold forming unit 8 and demolding unit 10 in the embodiment of the present invention are not described in detail. It is only necessary to realize the purpose of supplying metal powder and reciprocating movement of the pushing box 9, pressing and molding of the metal powder, and demolding after molding.

[0109] In the actual application process of this embodiment, after the powder supply unit 6 inputs the metal powder into the upper part of the material taking mechanism in the push box body 9 through the powder inlet chamber 58, the push box body 9 is pushed to the mold forming part 8. At this time, there is no interaction force between the powder taking mechanism and the powder picking module, the powder picking module is in an energy release state, and the powder picking module is in the state of moving to the powder sweeping module area. When the push box body 9 is pushed to the mold forming part 8, the drive motor 11 is started, and the drive motor 11 synchronously drives the powder moving mechanism and the powder taking mechanism. The powder moving mechanism moves the metal powder in the push box body 9, so that the metal powder in the push box body 9 is in a dynamic state of being moved. The powder picking mechanism is in a toggling state to avoid the formation of a dead zone of falling like an arch bridge hole in the pushing box 9, which may cause the problem of insufficient powder picking by the powder picking mechanism. The powder picking mechanism synchronously drives the powder sweeping module to clean the metal powder on the powder picking module. In the process of powder picking and delivery by the powder picking mechanism, the state between the powder picking mechanism and the powder picking module changes from a state of no interaction force to a state of interaction force. When the powder picking mechanism is in a state of applying a force to the powder picking module with an interaction force, the powder picking module is in an energy storage state, and the powder picking module is in a state away from the powder sweeping module area. When the powder picking mechanism is in a state where the metal powder is completely delivered, the powder picking mechanism The powder collecting module is in a state of no interaction force with the powder collecting module again, the driving motor 11 stops working, the powder collecting module is in an automatic energy release state, and the powder collecting module is in a powder collecting state moving toward the powder sweeping module area, and then the powder supply unit 6 drives the pusher box 9 to reset so that the forming drive unit 7, the mold forming unit 8 and the demolding unit 10 can perform subsequent processes, and this cycle is repeated, so that a powder storage space is formed between the powder collecting mechanism and the top inner wall of the pusher box 9, which effectively prevents the metal powder from falling directly on the surface of the work table 5, thereby preventing the metal powder from remaining on the work table during the reciprocating conveying process of the metal powder forming process. 5, at the same time, by using the powder-pumping mechanism, the relative action relationship between the powder-taking mechanism and the powder-picking module, and the setting of the powder-pumping mechanism synchronously driving the powder-sweeping module, it is possible to avoid the powder aggregation like the holes of an arch bridge due to the friction and cohesive force between the powder particles, thereby avoiding the problem that the metal powder does not fall completely when it is located at the mold forming part 8, resulting in uneven distribution of the metal powder in the mold forming part 8 and reduced product quality, thereby ensuring the initial production quality of the product; at the same time, the excess metal powder delivered can be picked up and cleaned, avoiding the metal powder remaining on the work table 5 and causing waste of resources.

[0110] As a preferred embodiment of the present invention, the powder moving mechanism comprises:

[0111] The mounting frame 12 is fixedly arranged on the top of the pushing box 9;

[0112] The elastic expansion member is symmetrically fixed on both sides of the top of the material taking mechanism;

[0113] A transition powder-digging frame 14 is fixedly arranged on the top of the telescopic end of the elastic telescopic member;

[0114] The shifting module is arranged on the top wall of the pushing box 9 and is located in the transition powder shifting frame 14, and is used to dynamically shift the metal powder in the transition powder shifting frame 14 while driving the transition powder shifting frame 14;

[0115] The transmission module is arranged in the installation frame 12 and is used for transmitting power between the driving motor 11 and the toggle module;

[0116] Among them, a plurality of evenly distributed sieve holes are opened at the bottom of the transition powder shifting frame 14, the outer side surface of the transition powder shifting frame 14 is slidably fitted to the inner wall of the pushing box 9, the transition powder shifting frame 14 is located below the powder inlet, and the drive motor 11 is fixedly arranged on the outer wall of the mounting frame 12 through a motor bracket.

[0117] Specifically, the elastic telescopic member is composed of a fixed outer tube and a telescopic inner rod 15 elastically slidably disposed in the fixed outer tube;

[0118] The transition powder-drilling frame 14 is fixedly arranged on the top end of the telescopic inner rod 15 .

[0119] In the actual application of this embodiment, the powder supply unit 6 inputs the metal powder into the transition powder dialing frame 14 through the powder feeding chamber 58. Due to the effect of the sieve holes on the transition powder dialing frame 14, part of the metal powder falls into the transition powder dialing frame 14, and part falls between the transition powder dialing frame 14 and the powder taking mechanism. When the powder supply unit 6 pushes the pushing box 9 to the mold forming part 8, the drive motor 11 is started, and the power of the drive motor 11 is transmitted to the shifting module through the transmission module, so that the transition powder dialing frame 14 is driven and the metal powder in the transition powder dialing frame 14 is dynamically shifted, thereby providing a placement space for the metal powder entering the pushing box 9 to avoid the metal powder directly acting on the work surface 5, and the metal powder in the pushing box 9 can be dynamically shifted to avoid the metal powder forming a falling dead zone similar to an arch bridge hole in the pushing box 9.

[0120] As a preferred embodiment of the present invention, the top wall of the push box body 9 is symmetrically provided with guide slots 16, the top wall of the push box body 9 between the guide slots 16 is fixedly provided with first brackets 22 at intervals, and the top wall of the push box body 9 between the first brackets 22 is fixedly provided with second brackets, and the transmission module includes:

[0121] A driving shaft 17 is rotatably mounted on the mounting frame 12 and the second bracket;

[0122] The transmission unit corresponds to the guide slot 16 one by one and is symmetrically arranged in the installation frame 12;

[0123] One end of the driving shaft 17 is detachably connected to the output shaft of the driving motor 11 via a coupling, and the other end of the driving shaft 17 is transmission-connected to the transmission unit via a bevel gear pair.

[0124] Specifically, the transmission unit includes:

[0125] A reciprocating screw rod 18 is rotatably mounted on the mounting frame 12 and the first bracket 22;

[0126] A driving slider 19 is threadedly engaged with the reciprocating screw rod 18;

[0127] The driving rack 20 is fixedly arranged on the top wall of the pushing box 9 and is parallel to the guide chute 16 in space;

[0128] The transmission gear 21 is disposed on the toggle module and meshes with the driving rack 20;

[0129] The driving slider 19 is slidably disposed on the inner wall of the installation frame 12 through an auxiliary rod, and the driving slider 19 is disposed on the toggle module.

[0130] Furthermore, in order to increase the toggle range of the toggle module, the number of teeth of the bevel gear on the driving shaft 17 is greater than the number of teeth of the bevel gear on the reciprocating screw 18 .

[0131] In actual application of this embodiment, by providing mutually cooperating reciprocating screw 18 and driving slider 19 as well as mutually cooperating driving rack 20 and transmission gear 21, the driving force of the driving motor 11 is converted into the reciprocating lateral movement driving force and reciprocating rotation driving force of the toggling module. That is to say, under the transmission connection of the bevel gear pair, the rotation of the driving motor 11 drives the symmetrically arranged reciprocating screw 18 to rotate, and the rotation of the reciprocating screw 18 drives the driving slider 19 cooperating therewith to move laterally reciprocatingly along the reciprocating screw 18. Under the action of the mutually cooperating driving rack 20 and transmission gear 21, the lateral reciprocating movement of the driving slider 19 drives the toggling module to reciprocate, thereby driving the toggling module to drive the transition powder frame 14 while dynamically toggling the metal powder in the transition powder frame 14.

[0132] As a preferred embodiment of the present invention, the toggle module includes:

[0133] The guide slider 23 corresponds to the guide slot 16 one by one and is symmetrically slidably disposed in the guide slot 16;

[0134] The rotating shaft 24 is rotatably arranged on the guide slider 23 and the driving slider 19 in one-to-one correspondence with the guide slider 23;

[0135] The toggle protrusion group corresponds to the toggle shaft 24 one by one and is symmetrically arranged on the bottom inner wall of the transition powder toggle frame 14;

[0136] The toggle unit 26 is arranged on the toggle shaft 24 which is symmetrically arranged;

[0137] Among them, the transmission gear 21 is fixedly set on the toggle shaft 24, the toggle protrusion groups are all located on the lateral movement trajectory of the adjacent toggle shafts 24, the bottom end of the toggle shaft 24 is lower than the highest point of the protrusion of the toggle protrusion group; the toggle units 26 located on the symmetrically arranged toggle shafts 24 are staggered.

[0138] Specifically, the toggle unit 26 includes:

[0139] A plurality of toggle crossbars are arranged on the toggle rotating shaft 24 symmetrically arranged;

[0140] A plurality of vertical toggle rods are arranged on the horizontal toggle rods;

[0141] The toggle brush is arranged on the toggle rotating shaft 24 which is symmetrically arranged;

[0142] The horizontal toggle rod, vertical toggle rod and toggle brush on the symmetrically arranged toggle shaft 24 are all staggered.

[0143] Specifically, the moving protrusion group includes a plurality of protrusions 25, and the upper surfaces of the protrusions 25 are all arranged in a curved surface.

[0144] Furthermore, in order to ensure the smoothness of the relative movement between the toggle shaft 24 and the protrusion 25 , a movable ball is embedded in the bottom of the toggle shaft 24 , and the lowest point of the ball is lower than the highest point of the protrusion 25 .

[0145] In the actual application process of this embodiment, by setting a toggle shaft 24 and a toggle protrusion group corresponding to the toggle shaft 24, the driving motor 11 rotates to drive the symmetrically arranged reciprocating screw 18 to rotate, and the reciprocating screw 18 rotates to drive the driving slider 19 that cooperates with it to move back and forth laterally along the reciprocating screw 18, that is, the symmetrically arranged toggle shaft 24 is driven to move back and forth laterally along the guide slide 16. Under the joint action of the toggle protrusion group and the elastic telescopic member, the transition powder frame 14 is driven to reciprocate vertically. At the same time, under the action of the driving rack 20 and the transmission gear 21 that cooperate with each other, the lateral reciprocating movement of the driving slider 19 drives the toggle shaft 24 to move The toggle shaft 24 reciprocates and the reciprocating rotation drives the toggle cross bar, the toggle vertical bar and the toggle brush to toggle the metal powder in the transition powder frame 14 laterally while dynamically rotating the metal powder. Moreover, the toggle cross bar, the toggle vertical bar and the toggle brush on the symmetrically arranged toggle shaft 24 are staggered, that is, the movement trajectories of the toggle cross bar, the toggle vertical bar and the toggle brush do not interfere with each other, thereby avoiding the problem of interference in the movement trajectories of the symmetrically arranged toggle shaft 24 during the process of moving and rotating toward each other, thereby ensuring the effective stirring of the metal powder and avoiding the problem of insufficient powder taking by the powder taking mechanism due to the formation of a falling dead zone similar to an arch bridge hole in the pushing box 9.

[0146] As a preferred embodiment of the present invention, the powder taking mechanism comprises:

[0147] The mounting seat 27 is fixedly arranged on the inner wall of the bottom of the pushing box 9;

[0148] The powder taking avoidance groove 28 is provided in the middle of the mounting seat 27, and the top and the bottom are both open;

[0149] The powder taking rotating shaft 29 is provided on the material pushing box 9 with a damping rotation, and one end thereof penetrates and rotates on the side wall of the material pushing box 9;

[0150] The powder feeding roller 30 is fixedly arranged on the powder rotating shaft 29 located in the powder avoiding groove 28;

[0151] A powder collecting groove 31 is provided on the powder collecting and delivering roller 30;

[0152] Among them, the powder collecting shaft 29 is connected to the driving shaft 17 through a first transmission member, the powder collecting avoidance groove 28, the powder collecting shaft 29 and the powder collecting and delivering roller 30 are coaxially arranged, the arc length corresponding to the powder collecting groove 31 is less than half of the circumference of the powder collecting and delivering roller 30, the open end at the bottom of the powder collecting avoidance groove 28 is interconnected with the lower powder through groove, and the elastic telescopic member is fixedly arranged on the top of the mounting seat 27.

[0153] When the powder collecting module corresponds to the area of ​​the powder collecting slot 31, there is no interaction force between the powder collecting and delivering roller 30 and the powder collecting module, and the powder collecting module is in an automatic energy release state.

[0154] When the powder picking module is away from the powder collecting slot 31, the powder collecting and delivering roller 30 is in a state of exerting a force on the powder picking module with an interaction force, and the powder picking module is in an energy storage state.

[0155] Furthermore, in order to improve the effect of the metal powder falling, the middle part of the upper surface of the mounting seat 27 corresponding to the powder taking and delivering roller 30 is set in a "V" shape.

[0156] In the actual application process of this embodiment, the powder supply part 6 pushes the pushing box 9 to the mold forming part 8. At this time, the powder feeding roller 30 is at the initial end where the powder picking module is just located in the powder picking slot 31 area. The powder feeding roller 30 and the powder picking module are in a state of no interaction force. The powder picking module is in an automatic energy release state, and the powder picking module is in the state of moving to the powder sweeping module area. Subsequently, the driving motor 11 is started, and under the transmission connection action of the first transmission member, the powder picking shaft 29 is driven to rotate. The rotation of the powder picking shaft 29 drives the powder feeding roller 30 to rotate, and the rotation of the powder feeding roller 30 drives the powder picking slot 31 to change the position. In the process from the initial end of the powder picking module being located in the powder picking slot 31 area to the end of the powder picking module being located in the powder picking slot 31 area, the powder feeding roller 30 and the powder picking module are still in a state of no interaction force. state, the powder picking module is in the powder sweeping module area, the powder sweeping module cleans the metal powder on the powder picking module, and when the powder picking and delivering roller 30 rotates to drive the powder picking trough 31 away from the powder picking module, the powder picking and delivering roller 30 is in a state of exerting force on the powder picking module with an interaction force, the powder picking module is in an energy storage state, and the powder picking module is in a state away from the powder sweeping module area, and the powder picking trough 31 acquires and delivers the metal powder; when the powder picking and delivering roller 30 rotates again until the powder picking module is just located at the initial end of the powder picking trough 31 area, at this time the powder picking trough 31 is in a state where the metal powder is completely delivered, the powder picking and delivering roller 30 is again in a state of no interaction force with the powder picking module, the drive motor 11 stops working, the powder picking module is in an automatic energy release state, and the powder picking module is in a powder picking state moving toward the powder sweeping module area.

[0157] As a preferred embodiment of the present invention, a powder picking avoidance chamber 32 is provided inside the mounting seat 27 located on one side of the powder picking and delivering roller 30, an overflow groove is provided on the mounting seat 27 located between the powder picking avoidance chamber 32 and the powder picking avoidance groove 28, and a powder picking avoidance groove 42 is provided on the pushing box 9 and the mounting seat 27 located at the lower powder through groove area facing the side of the powder picking avoidance chamber 32, and the powder picking module includes:

[0158] The powder picking shaft 33 is rotatably disposed on the powder picking avoidance chamber 32;

[0159] The friction wheel 34 is fixedly arranged on the powder picking shaft 33 and interacts with the powder picking and delivering roller 30 intermittently;

[0160] The energy storage spring 35 is provided in at least one group, one end of which is fixedly provided on the powder picking shaft 33, and the other end of which is fixedly provided on the inner wall of the powder picking avoidance chamber 32, for storing energy and providing power;

[0161] A powder picking unit, movably arranged at the powder picking avoidance slot 42;

[0162] A powder picking power transmission unit is provided between the powder picking shaft 33 and the powder picking unit, and is used to drive the powder picking unit to move horizontally and longitudinally at the same time;

[0163] Wherein, the friction wheel 34 passes through the overflow groove and overflows the powder collection avoidance groove 28 surface;

[0164] When the powder picking unit is located at the powder picking avoidance groove 42 , the energy storage spring 35 is at the maximum energy storage value, and the lower bottom surface of the powder picking unit and the lower bottom surface of the material pushing box 9 are in the same plane.

[0165] Specifically, a stepped groove 43 is provided on the inner wall of the powder picking avoidance chamber 32, and the stepped groove 43 is composed of a first flat groove, an inclined groove and a second flat groove. The height of the second flat groove close to the lower powder through groove is higher than that of the first flat groove. The powder picking power transmission unit includes:

[0166] The transition shaft 36 is rotatably disposed on the inner wall of the powder picking and avoiding chamber 32;

[0167] A driven rotating shaft 37 is rotatably disposed on the inner wall of the powder picking and avoiding chamber 32;

[0168] A powder picking guide rod 38 is slidably disposed on the inner wall of the powder picking avoidance chamber 32 in a transverse direction;

[0169] A driving telescopic rod 39 is provided in at least one group, one end of which is fixedly provided on the driven rotating shaft 37, and the other end of which is rotatably provided on the powder picking guide rod 38;

[0170] The powder picking installation rod 40 is provided in at least one group and is fixedly provided on the powder picking guide rod 38 away from the side of the driving telescopic rod 39;

[0171] A powder picking positioning plate 41 is longitudinally slidably disposed on the powder picking mounting rod 40;

[0172] The longitudinal adjustment rod 44 corresponds to the stepped groove 43 one by one and is fixedly arranged on the side wall of the powder picking positioning plate 41;

[0173] Among them, the powder picking shaft 33 and the transition shaft 36 are connected by a second transmission member, the transition shaft 36 and the driven shaft 37 are connected by a third transmission member, the step groove 43 is arranged above the powder picking guide rod 38, the powder picking unit is arranged on the powder picking positioning plate 41, and the longitudinal adjustment rod 44 is slidably arranged in the step groove 43.

[0174] More specifically, the powder picking unit includes:

[0175] The powder picking connecting plate 45 is in an "L" shape, passes through the powder picking avoiding groove 42 and is fixedly arranged on the powder picking positioning plate 41;

[0176] A powder picking fixing plate 46 is fixedly arranged at an end of the powder picking connecting plate 45 away from the side of the powder picking positioning plate 41;

[0177] A powder picking sliding plate 47 is elastically slidably arranged at the bottom of the powder picking fixed plate 46;

[0178] The powder picking rotating plate 48 is elastically rotatably arranged on the powder picking sliding plate 47;

[0179] When the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 are located at the powder picking avoidance groove 42, the energy storage spring 35 is at the maximum energy storage value, and the lower bottom surfaces of the powder picking sliding plate 47 and the powder picking rotating plate 48 are in the same plane as the lower bottom surface of the pushing box 9.

[0180] Specifically, a plurality of torsion springs are arranged at the rotation connection between the powder picking rotating plate 48 and the powder picking sliding plate 47 for elastic connection.

[0181] The third transmission member includes an incomplete gear fixedly disposed on the transition shaft 36 and a driven gear fixedly disposed on the driven shaft 37;

[0182] The incomplete gear and the driven gear are intermittently meshed.

[0183] Furthermore, in order to prevent the picked-up metal powder from sliding off the two sides of the powder picking sliding plate 47 , side baffles are fixedly provided on both sides of the powder picking sliding plate 47 .

[0184] Furthermore, the side surface of the powder picking rotating plate 48 away from the rotation connection with the powder picking sliding plate 47 is arranged as an inclined surface, so as to better pick up the metal powder on the work table 5.

[0185] It should be noted that, in this embodiment, the first transmission member and the second transmission member can be a belt pair or a chain pair, and are products already available in the prior art. This embodiment is not limited here. The first transmission member, the combined structure diagram of the first transmission member and the powder picking shaft 29 and the driving shaft 17, the second transmission member and the combined structure diagram of the second transmission member and the powder picking shaft 33 and the transition shaft 36 in the accompanying drawings are only used as structural diagrams and have no practical significance. In actual scenarios, they are used and installed according to existing products. Therefore, the first transmission member and the second transmission member in the disclosed embodiment will not be described in detail, and it is only necessary to achieve the purpose of power transmission.

[0186] In the actual application process of this embodiment, the powder supply part 6 pushes the push box 9 to the mold forming part 8. At this time, the powder feeding roller 30 is at the initial end where the friction wheel 34 is just located in the powder collecting groove 31 area. There is no interaction force between the powder feeding roller 30 and the friction wheel 34. The energy storage spring 35 is in an untightened state where the energy is automatically released. The powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 are all moved to the powder sweeping module area.

[0187] Subsequently, the driving motor 11 is started, and under the transmission connection of the first transmission member, the powder collecting shaft 29 is driven to rotate, and the rotation of the powder collecting shaft 29 drives the powder collecting and delivering roller 30 to rotate, and the rotation of the powder collecting and delivering roller 30 drives the powder collecting groove 31 to change its position. In the process from the initial end of the friction wheel 34 being located in the powder collecting groove 31 area to the end of the friction wheel 34 being located in the powder collecting groove 31 area, the powder collecting and delivering roller 30 and the friction wheel 34 are still in a state of no interaction force, and the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 are in the powder sweeping module area, and the powder sweeping module cleans the metal powder on the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48. When the powder collecting and delivering roller 30 rotates and drives the powder collecting groove 31 away from the friction wheel 34, the powder collecting The powder delivery roller 30 is in a state of applying force to the friction wheel 34 with an interaction force, that is, under the friction force between the powder delivery roller 30 and the friction wheel 34, the positive rotation of the powder delivery roller 30 drives the friction wheel 34 to rotate in the opposite direction, that is, drives the powder picking shaft 33 to rotate in the opposite direction, at this time, the energy storage spring 35 is in a tightened state to store energy, and the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 are in a state away from the powder sweeping module area, that is, under the transmission action of the second transmission member and the third transmission member, the reverse rotation of the powder picking shaft 33 drives the transition shaft 36 to rotate in the opposite direction, and the reverse rotation of the transition shaft 36 drives the driven shaft 37 to rotate forward, and under the lateral movement limiting action of the powder picking guide rod 38, the driven shaft 37 rotates forward. The telescopic rod 39 and the powder picking guide rod 38 are driven to move in the direction away from the powder sweeping module. Through the installation support of the powder picking installation rod 40 and the mutual cooperation of the stepped groove 43 and the longitudinal adjustment rod 44, the powder picking guide rod 38 moves in the direction away from the powder sweeping module and further drives the powder picking fixing plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 to move in the direction away from the powder sweeping module through the powder picking connecting plate 45. Due to the rotational connection between the powder picking rotating plate 48 and the powder picking sliding plate 47, when the longitudinal adjustment rod 44 moves in the direction away from the powder sweeping module to the inclined groove position of the stepped groove 43, since the inclined groove is in a downwardly inclined state at this time, that is, the longitudinal adjustment rod 44 moves downward during the lateral movement, which means that the powder picking fixing plate 46 , the powder picking sliding plate 47 and the powder picking rotating plate 48 move downward during the lateral movement, at this time, the powder picking rotating plate 48 is located at the bottom side wall position of the powder picking avoidance chamber 32, under the action of the reverse force of the bottom side wall of the powder picking avoidance chamber 32, the powder picking rotating plate 48 rotates, thereby avoiding the interference problem of the moving trajectory between the powder picking rotating plate 48 and the bottom side wall of the powder picking avoidance chamber 32, when the longitudinal adjustment rod 44 moves to the first flat groove position of the stepped groove 43 in the direction away from the powder sweeping module, the lower bottom surfaces of the powder picking rotating plate 48 and the powder picking sliding plate 47 are located in the same plane as the lower bottom surface of the pushing box 9, and when the energy storage spring 35 is in the maximum energy storage state, the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 are all stored in the powder picking avoidance groove 42,The powder taking slot 31 is used to obtain and deliver metal powder;

[0188] When the powder feeding roller 30 rotates again until the friction wheel 34 is just located at the initial end of the powder feeding groove 31, the powder feeding groove 31 is in a state where the metal powder is completely fed, and the powder feeding roller 30 is in a state of no interaction with the friction wheel 34 again, the drive motor 11 stops working, and the energy storage spring 35 is in a state of automatic energy release, that is, under the transmission action of the second transmission member and the third transmission member, the positive rotation of the powder picking shaft 33 drives the positive rotation of the transition shaft 36, and the positive rotation of the transition shaft 36 drives the driven shaft 37 to rotate in the opposite direction. The driven rotating shaft 37 rotates in the opposite direction under the lateral movement limiting action of the powder picking guide rod 38, driving the telescopic rod 39 and the powder picking guide rod 38 to move toward the direction close to the powder sweeping module. Through the installation support of the powder picking installation rod 40 and the cooperation of the stepped groove 43 and the longitudinal adjustment rod 44, the powder picking guide rod 38 moves toward the direction close to the powder sweeping module and further drives the powder picking fixing plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 to move toward the direction close to the powder sweeping module through the powder picking connecting plate 45, thereby 6. The powder picking sliding plate 47 and the powder picking rotating plate 48 pick up the excess metal powder on the work surface 5. When the longitudinal adjustment rod 44 moves toward the direction close to the powder sweeping module to the inclined slot position of the stepped slot 43, the powder picking rotating plate 48 touches the side wall of the lower powder through slot. Since the inclined slot is in an upward tilted state at this time, that is, the longitudinal adjustment rod 44 moves upward during the lateral movement, it means that the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 move upward during the lateral movement. Due to the elastic sliding setting of the powder picking sliding plate 47 At the bottom of the powder picking fixed plate 46, the longitudinal adjustment rod 44 moves along the oblique groove position of the step groove 43, the powder picking sliding plate 47 and the powder picking rotating plate 48 elastically slide at the bottom of the powder picking fixed plate 46, and the powder picking rotating plate 48 always slides upward in contact with the side wall of the lower powder through groove. When the longitudinal adjustment rod 44 moves to the second flat groove position of the step groove 43 toward the direction close to the powder sweeping module, the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 all move into the powder picking avoidance cavity 32, thereby realizing the picking up of metal powder, and this cycle is repeated.

[0189] As a preferred embodiment of the present invention, a powder sweeping avoidance chamber 13 is provided inside the mounting seat 27 located on the other side of the powder taking and delivering roller 30, and the telescopic inner rod 15 on the side away from the powder picking avoidance chamber 32 penetrates the fixed outer tube and the mounting seat 27 and extends into the powder sweeping avoidance chamber 13, and a powder sweeping avoidance groove 49 is provided on the mounting seat 27 close to the powder sweeping avoidance chamber 13 and the lower powder through groove. The powder sweeping avoidance groove 49 and the powder picking avoidance groove 42 are arranged with equal width, and a powder sweeping baffle 50 is elastically rotatably provided at the bottom of the powder sweeping avoidance groove 49, and the powder sweeping module includes:

[0190] A positioning pin 51 is fixedly arranged on the bottom inner wall of the powder sweeping and avoiding chamber 13;

[0191] A cleaning driven rod 52, whose end close to the positioning pin 51 is rotatably disposed on the positioning pin 51;

[0192] A cleaning driving rod 53 is elastically slidably disposed in the cleaning driven rod 52;

[0193] A cleaning brush 54 is fixedly mounted on the cleaning driven rod 52;

[0194] The powder sweeping power transmission unit is arranged between the telescopic inner rod 15 and the cleaning drive rod 53, and is used to convert the vertical movement force of the telescopic inner rod 15 into the horizontal swing force of the cleaning brush 54;

[0195] The length of the cleaning driving rod 53 is shorter than the length of the cleaning driven rod 52 .

[0196] Specifically, a plurality of torsion springs are arranged at the rotation connection between the powder sweeping baffle plate 50 and the powder sweeping avoidance groove 49 to achieve elastic connection.

[0197] Specifically, the powder sweeping baffle 50 is in a “T” shape.

[0198] More specifically, the powder sweeping power transmission unit includes:

[0199] The rack seat 55 is fixedly arranged at the bottom end of the telescopic inner rod 15;

[0200] The powder sweeping transmission wheel 56 is meshed with the rack seat 55 and is rotatably disposed on the inner wall of the powder sweeping avoidance chamber 13 through the powder sweeping transmission shaft;

[0201] The powder sweeping transmission rack plate 57 is meshed with the powder sweeping transmission wheel 56 and is laterally slidably disposed on the inner wall of the powder sweeping avoidance chamber 13;

[0202] The cleaning driving rod 53 on the side away from the cleaning driven rod 52 is rotatably connected to the powder sweeping transmission rack plate 57; the telescopic inner rod 15 and the powder sweeping transmission rack plate 57 are perpendicular to each other in space; the gap distance between the rack seat 55 and the powder sweeping transmission rack plate 57 is greater than the vertical movement stroke of the telescopic inner rod 15;

[0203] When the rack seat 55 is located at the highest point, the powder sweeping transmission wheel 56 and the cleaning driving rod 53 are staggeredly arranged on both sides of the powder sweeping transmission rack plate 57 .

[0204] Furthermore, in order to facilitate the discharge of metal powder in the powder sweeping avoidance chamber 13, a powder outlet is provided on the pushing box body 9 and the mounting seat 27 corresponding to the powder sweeping avoidance chamber 13; a baffle 59 is detachably mounted on the powder outlet.

[0205] In the actual application of this embodiment, since the telescopic inner rod 15 on the side away from the powder picking avoidance chamber 32 passes through the fixed outer tube and the mounting seat 27 and extends into the powder sweeping avoidance chamber 13 and the rack seat 55 fixedly arranged at the bottom end of the telescopic inner rod 15, under the joint action of the powder sweeping transmission wheel 56 meshing with the rack seat 55 and the powder sweeping transmission rack plate 57 meshing with the powder sweeping transmission wheel 56, during the reciprocating extension and retraction process of the telescopic inner rod 15, the powder sweeping transmission wheel 56 is driven to rotate, and the powder sweeping transmission wheel 56 rotates The powder sweeping transmission rack plate 57 is driven to move laterally. Under the joint action of the positioning pin 51 and the cleaning drive rod 53 and the cleaning driven rod 52 which are elastically slidably matched, the powder sweeping transmission rack plate 57 moves laterally to drive the cleaning drive rod 53 and the cleaning driven rod 52 to swing back and forth around the positioning pin 51, thereby driving the cleaning brush 54 to swing back and forth. After the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 squeeze and knock down the powder sweeping baffle 50, the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48 The plate 48 picks up the metal powder and locates it in the powder sweeping avoidance chamber 13. At this time, the drive motor 11 is in a stopped working state. When the powder supply unit 6 pushes the push box 9 to the mold forming unit 8 again, the powder feeding roller 30 is in the initial end where the friction wheel 34 is just located in the powder collecting slot 31 area. There is no interaction force between the powder feeding roller 30 and the friction wheel 34. The energy storage spring 35 is in an untightened state where the energy is automatically released. Then the drive motor 11 is started, and the drive motor 11 starts to drive the powder feeding roller 30 rotates, from the initial end where the friction wheel 34 is located in the powder collecting groove 31 area to the end where the friction wheel 34 is located in the powder collecting groove 31 area, the powder collecting and feeding roller 30 and the friction wheel 34 are still in a state of no interaction force, and at the same time, the transition powder moving frame 14 is in a vertical reciprocating movement state of moving the metal powder, thereby driving the telescopic inner rod 15 to reciprocate, and then driving the cleaning brush 54 to swing back and forth to clean the metal powder on the powder picking fixed plate 46, the powder picking sliding plate 47 and the powder picking rotating plate 48.

[0206] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A powder metallurgy forming device for a thin-walled carrier of a circuit board, the device comprising a work surface (5) and a pusher box (9) arranged on the work surface (5); characterized in that: The device also includes: A powder taking mechanism is arranged on the inner wall of the bottom of the pushing box (9) and is used to provide a carrying space for the metal powder while quantitatively taking out the powder and delivering it, as well as providing a driving force; An automatic powder cleaning mechanism, arranged on the powder collecting mechanism, for collecting residual metal powder on the work surface (5); A powder moving mechanism is arranged between the powder taking mechanism and the top wall of the material pushing box (9), and is used to dynamically move the metal powder above the powder taking mechanism while providing driving force for the automatic powder cleaning mechanism; A driving motor (11) is used for intermittently and synchronously driving a powder-pumping mechanism and a powder-collecting mechanism; Wherein, the automatic powder cleaning mechanism comprises: The powder picking module is arranged on one side of the powder picking mechanism and is used for picking up the residual metal powder and storing and automatically releasing the energy required for picking up; The powder sweeping module is arranged at the other side of the powder taking mechanism and is used to sweep the metal powder on the powder picking module; Wherein, the powder-moving mechanism synchronously drives the powder-sweeping module; When the powder taking mechanism is in a state of exerting a force on the powder picking module with an interaction force, the powder picking module is in an energy storage state; When there is no interaction force between the powder taking mechanism and the powder picking module, the powder picking module is in an automatic energy release state; The powder stirring mechanism comprises: A mounting frame (12) is fixedly arranged on the top of the pusher box (9); The elastic expansion member is symmetrically fixed on both sides of the top of the material taking mechanism; A transition powder-drying frame (14) is fixedly arranged on the top of the telescopic end of the elastic telescopic member; A stirring module is arranged on the top wall of the pushing box (9) and is located in the transition powder stirring frame (14), and is used to dynamically stir the metal powder in the transition powder stirring frame (14) while driving the transition powder stirring frame (14); A transmission module, arranged in the installation frame (12), and used for transmitting power between the driving motor (11) and the toggle module; Wherein, a plurality of evenly distributed sieve holes are provided at the bottom of the transition powder separation frame (14); The top wall of the material pushing box (9) is symmetrically provided with guide slots (16), the top wall of the material pushing box (9) is fixedly provided with first brackets (22) at intervals, and the top wall of the material pushing box (9) is fixedly provided with a second bracket, and the transmission module comprises: A driving shaft (17) rotatably mounted on the mounting frame (12) and the second bracket; The transmission unit corresponds to the guide slots (16) one by one and is symmetrically arranged in the installation frame (12); One end of the driving shaft (17) is detachably connected to the output shaft of the driving motor (11), and the other end of the driving shaft (17) is connected to the transmission unit via a bevel gear pair; The powder taking mechanism comprises: A mounting seat (27) is fixedly arranged on the bottom inner wall of the pusher box (9); A powder taking avoidance groove (28) is provided in the middle of the mounting seat (27), and the top and the bottom are both open; A powder taking rotating shaft (29) is rotatably arranged on the material pushing box (9) with damping, and one end of the shaft passes through and rotates on the side wall of the material pushing box (9); A powder collecting and delivering roller (30) is fixedly arranged on the powder collecting rotating shaft (29); A powder collecting groove (31) is provided on the powder collecting and delivering roller (30); The powder collecting rotating shaft (29) is connected to the driving shaft (17) via a first transmission member, the powder collecting avoidance groove (28), the powder collecting rotating shaft (29) and the powder collecting and delivering roller (30) are coaxially arranged, and the arc length corresponding to the powder collecting groove (31) is less than half the circumference of the powder collecting and delivering roller (30); When the powder picking module corresponds to the area of ​​the powder picking slot (31), there is no interaction force between the powder picking delivery roller (30) and the powder picking module, and the powder picking module is in an automatic energy release state; When the powder picking module is away from the area of ​​the powder picking slot (31), the powder picking and delivering roller (30) is in a state of exerting a force on the powder picking module with an interaction force, and the powder picking module is in an energy storage state; A powder picking avoidance cavity (32) is provided inside the mounting seat (27), an overflow groove is provided on the mounting seat (27) between the powder picking avoidance cavity (32) and the powder taking avoidance groove (28), a powder picking avoidance groove (42) is provided on the pushing box (9) and the mounting seat (27), and the powder picking module comprises: A powder picking shaft (33) rotatably disposed on the powder picking avoidance chamber (32); The friction wheel (34) is fixedly mounted on the powder picking shaft (33) and interacts intermittently with the powder picking and delivering roller (30); An energy storage spring (35), at least one set, one end of which is fixedly arranged on the powder picking shaft (33) and the other end of which is fixedly arranged on the inner wall of the powder picking avoidance chamber (32), for storing energy and providing power; A powder picking unit, movably arranged at the powder picking avoidance groove (42); A powder picking power transmission unit is arranged between the powder picking rotating shaft (33) and the powder picking unit, and is used to drive the powder picking unit to move horizontally and longitudinally at the same time; Wherein, the friction wheel (34) passes through the overflow groove and overflows onto the surface of the powder collection avoidance groove (28); When the powder picking unit is located at the powder picking avoidance groove (42), the energy storage spring (35) is at a maximum energy storage value, and the lower bottom surface of the powder picking unit and the lower bottom surface of the material pushing box (9) are in the same plane; The inner wall of the powder picking avoidance chamber (32) is provided with a stepped groove (43), the stepped groove (43) being composed of a first flat groove, an inclined groove and a second flat groove, the height of the second flat groove close to the lower powder passage groove being higher than the height of the first flat groove, and the powder picking power transmission unit comprising: A transition shaft (36) rotatably disposed on the inner wall of the powder picking and avoiding chamber (32); A driven rotating shaft (37) rotatably disposed on the inner wall of the powder picking and avoiding chamber (32); A powder picking guide rod (38) is slidably disposed transversely on the inner wall of the powder picking avoidance chamber (32); A driving telescopic rod (39), at least one set of which has one end fixedly disposed on the driven rotating shaft (37) and the other end rotatably disposed on the powder picking guide rod (38); Powder picking mounting rods (40), at least one set, fixedly mounted on the powder picking guide rod (38) at a side away from the driving telescopic rod (39); A powder picking positioning plate (41) is longitudinally slidably disposed on the powder picking mounting rod (40); A longitudinal adjustment rod (44) corresponds one-to-one to the stepped groove (43) and is fixedly arranged on the side wall of the powder picking positioning plate (41); The powder picking shaft (33) and the transition shaft (36) are connected to each other via a second transmission member, the transition shaft (36) and the driven shaft (37) are connected to each other via a third transmission member, the stepped groove (43) is arranged above the powder picking guide rod (38), the powder picking unit is arranged on the powder picking positioning plate (41), and the longitudinal adjustment rod (44) is slidably arranged in the stepped groove (43); The powder picking unit comprises: The powder picking connection plate (45) is in an "L" shape and passes through the powder picking avoidance groove (42) and is fixedly arranged on the powder picking positioning plate (41); A powder picking fixing plate (46) fixedly arranged at an end of the powder picking connecting plate (45) at a side away from the powder picking positioning plate (41); A powder picking sliding plate (47) elastically slidably disposed at the bottom of the powder picking fixed plate (46); A powder picking rotating plate (48) is elastically rotatably arranged on the powder picking sliding plate (47); When the powder picking fixed plate (46), the powder picking sliding plate (47) and the powder picking rotating plate (48) are located at the powder picking avoidance groove (42), the energy storage spring (35) is at a maximum energy storage value, and the lower bottom surfaces of the powder picking sliding plate (47) and the powder picking rotating plate (48) are in the same plane as the lower bottom surface of the material pushing box (9).

2. The powder metallurgy forming device for thin-walled circuit board carrier according to claim 1, characterized in that: The elastic telescopic member is composed of a fixed outer tube and a telescopic inner rod (15) elastically slidably arranged in the fixed outer tube; The transition powder-drilling frame (14) is fixedly arranged on the top end of the telescopic inner rod (15).

3. The powder metallurgy forming device for thin-walled circuit board carrier according to claim 2, characterized in that: The toggle module comprises: The guide sliding block (23) corresponds to the guide sliding groove (16) one by one and is symmetrically slidably arranged in the guide sliding groove (16); The rotating shaft (24) is turned to correspond to the guide slider (23) one by one and is rotatably arranged on the guide slider (23); The toggle protrusion group corresponds to the toggle rotating shaft (24) one by one and is symmetrically arranged on the bottom inner wall of the transition powder toggle frame (14); A toggle unit (26) is arranged on the symmetrically arranged toggle shaft (24); The transmission unit is arranged on the toggle shaft (24), the toggle protrusion groups are all located on the lateral movement track of adjacent toggle shafts (24), and the bottom end of the toggle shaft (24) is lower than the highest point of the protrusion of the toggle protrusion group; the toggle units (26) located on the symmetrically arranged toggle shafts (24) are staggered.

4. The powder metallurgy forming device for thin-walled circuit board carrier according to claim 3, characterized in that: The mounting seat (27) has a powder sweeping avoidance chamber (13) formed therein, a telescopic inner rod (15) on a side away from the powder picking avoidance chamber (32) penetrates the fixed outer tube and the mounting seat (27) and extends into the powder sweeping avoidance chamber (13), the mounting seat (27) has a powder sweeping avoidance groove (49) formed therein, a powder sweeping baffle (50) being elastically rotatably provided at the bottom of the powder sweeping avoidance groove (49), and the powder sweeping module comprises: A positioning pin (51) is fixedly arranged on the bottom inner wall of the powder sweeping avoidance chamber (13); A cleaning driven rod (52) is rotatably disposed on the positioning pin (51) at an end thereof close to the positioning pin (51); A cleaning driving rod (53) elastically slidably disposed inside the cleaning driven rod (52); A cleaning brush (54) fixedly mounted on the cleaning driven rod (52); A powder sweeping power transmission unit is disposed between the telescopic inner rod (15) and the cleaning drive rod (53) and is used to convert the vertical movement force of the telescopic inner rod (15) into a horizontal swing force of the cleaning brush (54); Wherein, the length of the cleaning driving rod (53) is shorter than the length of the cleaning driven rod (52).

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