Laser-reinforced wear-resistant powder metallurgy valve seat

Abstract

The invention discloses a laser-strengthened wear-resistant powder metallurgy valve seat, which relates to the technical field of powder metallurgy, and comprises a middle concave platform, a collecting hopper is arranged at the top of the middle concave platform, a mold charging barrel is arranged in the collecting hopper, and a plurality of round rods are fixedly connected between the inner wall of the collecting hopper and the outer wall of the mold charging barrel; and a detachable collecting frame is arranged at the bottom of the collecting hopper. Through the arranged die pressing mechanism and the pressing vibration mechanism, when the detachable upper die presses raw material powder in the die charging barrel, the die charging barrel can be synchronously driven to vibrate, so that the raw material powder in the die charging barrel is dispersed, and the uniformity and sufficiency of pressing are guaranteed; and meanwhile, under the vibration effect, overflowing raw materials can conveniently and rapidly fall into the collecting hopper from the edge of the top end of the mold charging barrel, and collection of overflowing raw material powder is accelerated.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy, in particular to a laser-reinforced wear-resistant powder metallurgy valve seat. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder (or a mixture of metal powder and non-metal powder) as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. In the process of laser-enhanced wear-resistant powder metallurgy valve seats, it is often necessary to add raw material powder to the corresponding mold for pressing and forming to form laser-enhanced wear-resistant powder metallurgy valve seat blanks, thereby realizing the forming of laser-enhanced wear-resistant powder metallurgy valve seats, so as to facilitate subsequent sintering and obtain laser-enhanced wear-resistant powder metallurgy valve seats.

[0003] At present, in the process of laser enhanced wear-resistant powder metallurgy valve seat raw material powder pressing and molding, the raw material powder must first be added to the inside of the mold, and in the prior art, the raw material powder is often added continuously along one side, so that most of the raw material powder is concentrated in one side area inside the mold, and the distribution is uneven. As a result, during subsequent pressing and molding, the raw material powder inside the blank is unevenly distributed and cannot be fully compacted. The blank has defects, is not tight and full, and has a poor pressing effect. Moreover, during the pressing process, the side with more raw material powder distribution is prone to overflow of excess raw material during pressing, which makes subsequent collection more troublesome. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and provide a laser-reinforced wear-resistant powder metallurgy valve seat.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a laser-strengthened wear-resistant powder metallurgy valve seat, comprising a concave platform, a collecting bucket is provided on the top of the concave platform, and a mold barrel is provided inside the collecting bucket, a plurality of round rods are fixedly connected between the inner wall of the collecting bucket and the outer wall of the mold barrel, a detachable collecting frame is provided at the bottom of the collecting bucket, and a pair of sleeve sealing plates are connected to the top of the detachable collecting frame by bolts, the outer wall of the collecting bucket is in close contact with the inner wall of the pair of sleeve sealing plates, a moving and shifting mechanism is provided between the bottom end of the detachable collecting frame and the inner wall of the concave platform, and a material spreading mechanism is provided between the inside of the detachable collecting frame and the inner wall of the concave platform, a pressing mechanism is provided between the detachable collecting frame and the inside of the mold barrel and the top of the concave platform, and a rotating feeding mechanism is provided between the top of the mold barrel and the top of the concave platform.

[0006] As mentioned above, the movable switching mechanism includes a first motor installed on one end of the concave platform, a screw rod is rotatably connected between the inner walls of the concave platform through a bearing, and one end of the screw rod is fixedly connected to the output end of the first motor, the outer wall of the screw rod is sleeved with a movable sleeve block, the outer wall of the movable sleeve block is drilled with a threaded hole, and the movable sleeve block is threadedly connected to the outer wall of the screw rod through the threaded hole, and the bottom end of the detachable collection frame is connected to the top end of the movable sleeve block.

[0007] The above-mentioned rotary feeding mechanism includes a mounting plate fixedly connected to the top of the concave platform, the top of the mounting plate is fixedly connected to the second motor through an L-shaped plate, the mounting plate is rotatably connected to the first electric telescopic rod through a bearing, and the top of the first electric telescopic rod is fixedly connected to the output end of the second motor, the bottom end of the first electric telescopic rod is fixedly connected to a connecting sleeve, and the inner wall of the connecting sleeve is fixedly connected to a storage hopper, the bottom end of the storage hopper is fixedly connected to a discharge pipe, and the bottom end of the discharge pipe is located inside the mold barrel, the outer wall of the discharge pipe is fixedly connected to a control valve, the top sleeve of the storage hopper is provided with a sealing plug, and the outer wall of the sealing plug is in close contact with the inner wall of the storage hopper, and an air blowing and dispersing mechanism is provided between the outer wall of the discharge pipe and the inner top of the mounting plate.

[0008] The above-mentioned air blowing and dispersing mechanism includes an outer embedded cylinder embedded and connected to the outer wall of the connecting sleeve frame, a T-shaped rod is slidably connected inside the outer embedded cylinder, and an elastic tube sleeve is fixedly connected between one end of the T-shaped rod and the inner wall of the outer embedded cylinder, a through hole is drilled on the inner wall of the outer embedded cylinder, and the end of the T-shaped rod away from the elastic tube sleeve passes through the through hole and is fixedly connected with a movable hemisphere, a plurality of evenly distributed fixed hemispheres are fixedly connected to the inner top end of the mounting plate, and the movable hemisphere is in contact with the fixed hemisphere, a plurality of air holes are drilled on the outer wall of the outer embedded cylinder, and a waterproof breathable sheet is fixedly connected to the inner wall of the air hole, an air blowing pipe is fixedly connected between the bottom end of the outer embedded cylinder and the outer wall of the discharge pipe, and a one-way valve is fixedly connected to the outer wall of the air blowing pipe.

[0009] The above-mentioned die pressing mechanism includes a connecting platform fixedly connected to the inner wall of the collecting bucket, the top of the connecting platform is fixedly connected to the second electric telescopic rod, the interior of the mold barrel is provided with a lower mold in close contact with the lower mold, and the bottom end of the lower mold is fixedly connected to the top of the second electric telescopic rod, the top of the concave platform is fixedly connected to a sliding rod cylinder, and the output end of the sliding rod cylinder is fixedly connected to a connecting seat, the top of the connecting seat is fixedly connected to a die pressing detection terminal, the bottom end of the connecting seat is fixedly connected to a detachable upper mold, and the outer diameter of the detachable upper mold matches the inner diameter of the mold barrel, a moving detection mechanism is provided between the outer wall of the first electric telescopic rod and the bottom end of the detachable upper mold, and a pressing vibration mechanism is provided between the connecting seat and the outer wall of the collecting bucket.

[0010] The above-mentioned mobile detection mechanism includes a gear sleeved on the outer wall of the first electric telescopic rod, the outer wall of the gear is meshingly connected with a rack plate, and the bottom end of the rack plate is slidably connected to the top end of the mounting plate, the end of the rack plate close to the removable upper mold is fixedly connected to a supporting tray, and the interior of the supporting tray is fixedly connected to a visual inspection device, the visual inspection device is electrically connected to the die inspection terminal, and the top of the visual inspection device is fixedly connected to a pair of cleaning wipes, and the top of the pair of cleaning wipes is flush with the bottom end of the removable upper mold.

[0011] As mentioned above, the bottom end of the rack plate is fixedly connected with a sliding block, the top end of the mounting plate is provided with a sliding groove, and the sliding block is located in the sliding groove and is slidably connected thereto.

[0012] As mentioned above, the vibration suppression mechanism includes a pair of side sliding rails, the opposite sides of the pair of side sliding rails are fixedly connected to the outer wall of the concave platform, the inside of the pair of side sliding rails are provided with rolling pulleys, and the outer walls of the rolling pulleys are slidably connected to the inner walls of the side sliding rails, the outer walls of the pair of rolling pulleys are rotatably connected to an elliptical plate through a rotating shaft, the outer wall of the collecting bucket is fixedly connected to two pairs of third electric telescopic rods, and the ends of the two pairs of third electric telescopic rods away from each other are fixedly connected to straight plates, and the ends of the two pairs of straight plates close to the side sliding rails are fixedly connected to a plurality of evenly distributed collision balls, and the outer walls of the collision balls are in contact with one end of the elliptical plate.

[0013] The material spreading mechanism comprises a pair of external connecting tubes which are fixedly connected to the outer wall of the detachable collecting frame, a movable rod is arranged inside the pair of external connecting tubes, circular holes are drilled on the inner wall of the external connecting tubes and one end of the detachable collecting frame close to the movable rod, one end of the movable rod passes through the circular hole on one side and is fixedly connected with a ball ring, a pair of special-shaped rods are fixedly connected between the inner walls of the concave platform, and a pair of ball rings are respectively sleeved on the outer walls of the pair of special-shaped rods, the other end of the movable rod passes through the circular hole on the other side and Extending to the interior of the detachable collecting frame, the outer wall of the movable rod is fixedly connected with a spreading strip, the inner wall of the detachable collecting frame is fixedly connected with a filtering dense net, and the bottom end of the spreading strip contacts with the top of the filtering dense net, the outer wall of the movable rod is sleeved with a circular plate, the outer wall of the movable rod is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to one end of the built-in circular plate and the inner wall of the external connecting tube, the outer wall of the movable rod is fixedly connected with a pair of built-in balls, and the outer walls of the pair of built-in balls are both in contact with one end of the detachable collecting frame close to the movable rod.

[0014] As mentioned above, the inner walls of a pair of ball rings are movably connected with a plurality of balls, and the outer walls of the plurality of balls are in contact with the outer wall of the special-shaped rod.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The present invention can drive the collection hopper, the mold barrel and the detachable collection frame to switch the feeding and pressing positions by means of the mobile transposition mechanism and the spreading mechanism. At the same time, during the movement, the spreading strip moves back and forth, so as to spread the raw material powder collected in the detachable collection frame due to overflow during the feeding and pressing process, reduce accumulation, and facilitate rapid filtration and collection of the raw material powder under the knocking and vibration of the built-in ball, thereby enhancing the filtering and collection effect; Second, the present invention can drive the discharge pipe to discharge materials in multiple directions along the mold barrel by means of the rotary feeding mechanism and the blowing and breaking mechanism, so as to avoid the uneven distribution of raw material powder caused by long-term discharge at one position. By means of subsequent pressing and molding, the agglomerated raw material powder and residual raw material powder inside the discharge pipe can be broken up and blown down by repeated blowing and impact of gas during the discharge process, so as to make the raw material powder fully discharged, reduce the residue and enhance the discharge effect. 3. The present invention can detect the integrity of the bottom end of the detachable upper die during the feeding process by providing a rotating feeding mechanism and a die pressing mechanism in combination with a mobile detection mechanism, so as to facilitate timely replacement when damage or defects occur, thereby avoiding affecting the quality of the pressed blank; 4. The present invention provides a die pressing mechanism and a pressing vibration mechanism, which can simultaneously drive the mold barrel to vibrate when the detachable upper mold presses the raw material powder inside the mold barrel, so as to disperse the raw material powder inside, ensure the uniformity and sufficiency of the pressing, so as to form a dense and substantial laser-reinforced wear-resistant powder metallurgy valve seat forming blank, enhance the pressing effect, and at the same time, under the action of vibration, it is also convenient for the overflowed raw material to quickly fall from the top edge of the mold barrel to the inside of the collecting bucket, thereby accelerating the collection of the overflowed raw material powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the partial cutaway structure of the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the mobile transposition mechanism and the material spreading mechanism in the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 It is a partial cross-sectional structural schematic diagram of the rotary feeding mechanism and the air blowing and scattering mechanism in the present invention from another perspective; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at B in the middle; Figure 7 It is a three-dimensional structural schematic diagram of the die pressing mechanism and the pressing vibration mechanism in the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the mobile detection mechanism in the present invention; Fig. 9 It is a partial cross-sectional structural schematic diagram of the suppression vibration mechanism in the present invention; Fig.10 It is a schematic diagram of the partial cross-section structure of the material spreading mechanism in the present invention.

[0017] In the figure: 1, concave platform; 2, collecting hopper; 3, round rod; 4, mold barrel; 5, removable collecting frame; 501, filter mesh; 6, sleeve sealing plate; 7, mobile transposition mechanism; 701, first motor; 702, screw rod; 703, movable sleeve block; 8, rotating feeding mechanism; 801, mounting plate; 802, second motor; 803, first electric telescopic rod; 804, connecting sleeve; 805, storage hopper; 806, discharge pipe; 807, control valve; 808, sealing plug; 9, blowing and scattering mechanism; 901, external embedded cylinder; 902, T-shaped rod; 903, elastic cylinder sleeve; 904, blowing pipe; 905, one-way valve; 906, waterproof breathable sheet; 907, movable hemisphere; 908, fixed hemisphere; 10, die pressing mechanism; 1001, connection platform; 1002, second electric telescopic rod; 1 003, lower die; 1004, slide cylinder; 1005, docking seat; 1006, detachable upper die; 1007, die detection terminal; 11, mobile detection mechanism; 1101, gear; 1102, rack plate; 11021, slider; 11022, slideway; 1103, tray; 1104, visual inspection equipment; 1105, cleaning wipe; 12, suppression vibration mechanism; 120 1. Side sliding track; 1202. Rolling pulley; 1203. Elliptical plate; 1204. Third electric telescopic rod; 1205. Straight plate; 1206. Collision ball; 13. Material spreading mechanism; 1301. External tube; 1302. Movable rod; 1303. Ball ring; 1304. Special-shaped rod; 1305. Spreading strip; 1306. Spring; 1307. Built-in round plate; 1308. Built-in ball. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-Figure 10As shown, the present invention provides a technical solution: a laser-strengthened wear-resistant powder metallurgy valve seat, comprising a concave platform 1, a collecting bucket 2 is provided on the top of the concave platform 1, and a mold barrel 4 is provided inside the collecting bucket 2, a plurality of round rods 3 are fixedly connected between the inner wall of the collecting bucket 2 and the outer wall of the mold barrel 4, a detachable collecting frame 5 is provided at the bottom of the collecting bucket 2, and a pair of sleeve sealing plates 6 are connected to the top of the detachable collecting frame 5 by bolts, the outer wall of the collecting bucket 2 is in close contact with the inner wall of the pair of sleeve sealing plates 6, a moving displacement mechanism 7 is provided between the bottom end of the detachable collecting frame 5 and the inner wall of the concave platform 1, and a material spreading mechanism 13 is provided between the inside of the detachable collecting frame 5 and the inner wall of the concave platform 1, a pressing mechanism 10 is provided between the detachable collecting frame 5 and the inside of the mold barrel 4 and the top of the concave platform 1, and a rotating feeding mechanism 8 is provided between the top of the mold barrel 4 and the top of the concave platform 1.

[0020] During use of the present solution, raw materials are added to the inside of the mold barrel 4 to facilitate pressing thereof, thereby realizing the forming of laser-reinforced wear-resistant powder metallurgy valve seats. The collecting bucket 2 cooperates with the detachable collecting frame 5 to collect the overflowed raw material powder during the adding and pressing process for subsequent utilization, thereby preventing it from being scattered everywhere and reducing the burden of collection. At the same time, through a pair of detachable sleeve sealing plates 6, the collecting bucket 2 and the detachable collecting frame 5 can be driven to be disassembled and separated, thereby facilitating the processing of the raw material powder collected inside the detachable collecting frame 5.

[0021] like Figure 1 and Figure 3-Figure 4 As shown, the movable transposition mechanism 7 includes a first motor 701 installed on one end of the concave platform 1, a screw rod 702 is rotatably connected between the inner walls of the concave platform 1 through a bearing, and one end of the screw rod 702 is fixedly connected to the output end of the first motor 701, the outer wall of the screw rod 702 is sleeved with a movable sleeve block 703, the outer wall of the movable sleeve block 703 is drilled with a threaded hole, and the movable sleeve block 703 is threadedly connected to the outer wall of the screw rod 702 through the threaded hole, and the bottom end of the detachable collection frame 5 is connected to the top end of the movable sleeve block 703.

[0022] During use of this solution, the first motor 701 drives the screw rod 702 to rotate, so that the movable sleeve 703 moves horizontally under the rotation of the screw rod 702, driving the collecting hopper 2, the mold barrel 4 and the detachable collecting frame 5 to switch the feeding and pressing molding positions.

[0023] like Figure 1 and Figure 5As shown, the rotary feeding mechanism 8 includes a mounting plate 801 fixedly connected to the top of the concave platform 1, the top of the mounting plate 801 is fixedly connected to the second motor 802 through an L-shaped plate, the mounting plate 801 is rotatably connected to the first electric telescopic rod 803 through a bearing, and the top of the first electric telescopic rod 803 is fixedly connected to the output end of the second motor 802, the bottom end of the first electric telescopic rod 803 is fixedly connected to a connecting sleeve 804, and the inner wall of the connecting sleeve 804 is fixedly connected to a storage hopper 805, the bottom end of the storage hopper 805 is fixedly connected to a discharge pipe 806, and the bottom end of the discharge pipe 806 is located inside the mold barrel 4, the outer wall of the discharge pipe 806 is fixedly connected to a control valve 807, the top of the storage hopper 805 is provided with a sealing plug 808, and the outer wall of the sealing plug 808 is in close contact with the inner wall of the storage hopper 805, and an air blowing and dispersing mechanism 9 is provided between the outer wall of the discharge pipe 806 and the inner top of the mounting plate 801.

[0024] During use of the present solution, the first electric telescopic rod 803 drives the storage hopper 805 and the discharge pipe 806 to move downward, so that the bottom end of the discharge pipe 806 extends to the interior of the mold barrel 4 to prevent the material from spilling out during subsequent feeding, and the control valve 807 can drive the discharge pipe 806 to open, so that the raw material powder is discharged downward to the interior of the mold barrel 4 through the discharge pipe 806. At the same time, the second motor 802 drives the first electric telescopic rod 803 to rotate, so that it drives the storage hopper 805 and the discharge pipe 806 to discharge along the mold barrel 4 through the connecting sleeve 804, thereby realizing multi-directional discharge, avoiding long-term discharge at one position resulting in uneven distribution of the raw material powder, and facilitating subsequent sufficient pressing. When the raw material powder in the storage hopper 805 is insufficient, the sealing plug 808 can be opened to add the raw material powder for its subsequent feeding and use.

[0025] like Figure 1 and Figure 5-Figure 6 As shown, the air blowing and dispersing mechanism 9 includes an outer embedded cylinder 901 which is embedded and connected to the outer wall of the connecting sleeve frame 804, a T-shaped rod 902 is slidably connected inside the outer embedded cylinder 901, and an elastic sleeve 903 is fixedly connected between one end of the T-shaped rod 902 and the inner wall of the outer embedded cylinder 901, a through hole is drilled on the inner wall of the outer embedded cylinder 901, and the end of the T-shaped rod 902 away from the elastic sleeve 903 passes through the through hole and is fixedly connected to a movable hemisphere 907, a plurality of evenly distributed fixed hemispheres 908 are fixedly connected to the inner top end of the mounting plate 801, and the movable hemisphere 907 is in contact with the fixed hemisphere 908, a plurality of air holes are drilled on the outer wall of the outer embedded cylinder 901, and a waterproof breathable sheet 906 is fixedly connected to the inner wall of the air hole, an air blowing pipe 904 is fixedly connected between the bottom end of the outer embedded cylinder 901 and the outer wall of the discharge pipe 806, and a one-way valve 905 is fixedly connected to the outer wall of the air blowing pipe 904.

[0026] During use of the present solution, when the connecting sleeve 804 rotates, the outer embedded cylinder 901 is driven to rotate synchronously, so that the T-shaped rod 902 and the movable hemisphere 907 are driven to rotate synchronously along the inner top of the mounting plate 801, so that the movable hemisphere 907 repeatedly contacts and separates with the plurality of fixed hemispheres 908 during the rotation process, and drives the movable hemisphere 907 to move up and down along the inside of the outer embedded cylinder 901 with the assistance of the elastic sleeve 903. When moving downward, the air inside the outer embedded cylinder 901 is squeezed and blown to the inside of the discharge pipe 806 through the one-way conduction of the blowing pipe 904 and the one-way valve 905, so as to disperse the agglomerated raw material powder inside the discharge pipe 806, and at the same time, the raw material powder remaining on the inner wall of the discharge pipe 806 is blown, so as to ensure that the raw material powder is fully discharged, reduce the residue, and enhance the discharge effect.

[0027] like Figure 1-Figure 2 and Figure 7 As shown, the die pressing mechanism 10 includes a connecting platform 1001 fixedly connected to the inner wall of the collecting bucket 2, the top of the connecting platform 1001 is fixedly connected to the second electric telescopic rod 1002, the interior of the mold barrel 4 is provided with a lower mold 1003 in close contact with it, and the bottom end of the lower mold 1003 is fixedly connected to the top of the second electric telescopic rod 1002, the top of the concave platform 1 is fixedly connected to the sliding rod cylinder 1004, and the output end of the sliding rod cylinder 1004 is fixedly connected to the connecting seat 1005, the top of the connecting seat 1005 is fixedly connected to the die pressing detection terminal 1007, the bottom end of the connecting seat 1005 is fixedly connected to the detachable upper mold 1006, and the outer diameter of the detachable upper mold 1006 matches the inner diameter of the mold barrel 4, a moving detection mechanism 11 is provided between the outer wall of the first electric telescopic rod 803 and the bottom end of the detachable upper mold 1006, and a pressing vibration mechanism 12 is provided between the connecting seat 1005 and the outer wall of the collecting bucket 2.

[0028] During use of this solution, raw material powder is added to the inside of the mold barrel 4 and located on the top of the lower mold 1003. The slide cylinder 1004 drives the removable upper mold 1006 to move downward and extend to the inside of the mold barrel 4 to press the raw material powder. The raw material powder is accommodated in the mold barrel 4 and is extruded toward each other by the removable upper mold 1006 and the lower mold 1003, so that the raw material powder is pressed into a blank in the shape of a laser-reinforced wear-resistant powder metallurgy valve seat, thereby realizing the molding of laser-reinforced wear-resistant powder metallurgy valve seat.

[0029] like Figure 1 and Figure 8As shown, the mobile detection mechanism 11 includes a gear 1101 sleeved on the outer wall of the first electric telescopic rod 803, the outer wall of the gear 1101 is meshedly connected with a rack plate 1102, and the bottom end of the rack plate 1102 is slidably connected to the top of the mounting plate 801, the end of the rack plate 1102 close to the detachable upper mold 1006 is fixedly connected to a supporting tray 1103, and the interior of the supporting tray 1103 is fixedly connected to a visual inspection device 1104, the visual inspection device 1104 is electrically connected to the die detection terminal 1007, the top of the visual inspection device 1104 is fixedly connected to a pair of cleaning wipes 1105, and the top of the pair of cleaning wipes 1105 is flush with the bottom end of the detachable upper mold 1006, the bottom end of the rack plate 1102 is fixedly connected to a slider 11021, the top of the mounting plate 801 is opened with a slide groove 11022, and the slider 11021 is located in the slide groove 11022 and is slidably connected thereto.

[0030] During use of this solution, the second motor 802 drives the first electric telescopic rod 803 to rotate, and the corresponding gear 1101 also rotates synchronously, and drives the rack plate 1102 to move toward the detachable upper mold 1006 with the assistance of the sliding of the slider 11021 and the slide groove 11022 through the meshing transmission action, pushing the supporting tray 1103, the visual inspection device 1104 and the cleaning wipe 1105 close to the detachable upper mold 1006 and contacting its bottom end, so that a pair of cleaning wipes 1105 cleans the dust at the bottom end of the detachable upper mold 1006 to avoid affecting the subsequent pressing. At the same time, the bottom end of the detachable upper mold 1006 in a clean state is more convenient for the visual inspection device 1104, and cooperates with the die detection terminal 1007 to detect whether there is any damage or defect at the bottom end of the detachable upper mold 1006. If there is any defect or damage, an alarm is issued to remind the relevant staff to replace the detachable upper mold 1006 to avoid interference with subsequent pressing and molding, thereby ensuring the integrity and quality of the blank.

[0031] like Figure 1 and Figure 8-Figure 9 As shown, the suppression vibration mechanism 12 includes a pair of side sliding rails 1201, the opposite sides of the pair of side sliding rails 1201 are fixedly connected to the outer wall of the concave platform 1, the inside of the pair of side sliding rails 1201 is provided with a rolling pulley 1202, and the outer wall of the rolling pulley 1202 is slidingly connected to the inner wall of the side sliding rail 1201, the outer walls of the pair of rolling pulleys 1202 are rotatably connected to an elliptical plate 1203 through a rotating shaft, the outer wall of the collecting bucket 2 is fixedly connected to two pairs of third electric telescopic rods 1204, and the ends of the two pairs of third electric telescopic rods 1204 away from each other are fixedly connected to a straight plate 1205, and the ends of the two pairs of straight plates 1205 close to the side sliding rail 1201 are fixedly connected to a plurality of evenly distributed collision balls 1206, and the outer wall of the collision ball 1206 is in contact with one end of the elliptical plate 1203.

[0032] During the use of this solution, when the detachable upper mold 1006 is pressed downward, a pair of rolling pulleys 1202 respectively move synchronously with the connecting seat 1005 along a pair of side sliding rails 1201, and drive the pair of elliptical plates 1203 to rotate. When the bottom end of the detachable upper mold 1006 begins to enter the mold barrel 4, a plurality of evenly distributed collision balls 1206 appear on the falling path of the pair of elliptical plates 1203, so that during the rotation process, the pair of elliptical plates 1203 repeatedly contact and collide with the plurality of collision balls 1206 using the protruding ends, so that the straight plate 1205 generates vibration during the repeated contact and collision process. The vibration is transmitted to the collecting bucket 2 and the mold barrel 4, causing the collecting bucket 2 and the mold barrel 4 to vibrate, causing the mold barrel 4 to use the vibration effect to disperse the raw material powder inside the detachable upper mold 1006 during the pressing process, so as to avoid one place being relatively dense and full and another place being relatively loose and empty during the pressing process, so that the raw material powder can be pressed evenly to form a dense and full laser-reinforced wear-resistant powder metallurgy valve seat forming blank, thereby enhancing the pressing effect. At the same time, under the action of vibration, it is also convenient for the overflowed raw material to quickly fall from the top edge of the mold barrel 4 to the inside of the collecting bucket 2, thereby accelerating the collection of the overflowed raw material powder.

[0033] like Figure 1 , Figure 3 and Fig.10 As shown, the material spreading mechanism 13 includes a pair of external connection tubes 1301 that are fixedly connected to the outer wall of the detachable collecting frame 5, and a movable rod 1302 is provided inside the pair of external connection tubes 1301. Circular holes are drilled in the inner wall of the external connection tube 1301 and one end of the detachable collecting frame 5 close to the movable rod 1302. One end of the movable rod 1302 passes through the circular hole on one side and is fixedly connected with a ball ring 1303. A pair of special-shaped rods 1304 are fixedly connected between the inner walls of the concave platform 1, and the pair of ball rings 1303 are respectively sleeved on the outer walls of the pair of special-shaped rods 1304. The other end of the movable rod 1302 passes through the circular hole on the other side and extends to the inside of the detachable collecting frame 5. The outer wall of the movable rod 1302 is fixedly connected with a spreading strip 13 05. The inner wall of the detachable collecting frame 5 is fixedly connected with a filter mesh 501, and the bottom end of the spreading strip 1305 is in contact with the top of the filter mesh 501. The outer wall of the movable rod 1302 is sleeved with a circular plate. The outer wall of the movable rod 1302 is sleeved with a spring 1306, and the two ends of the spring 1306 are respectively fixedly connected with one end of the built-in circular plate 1307 and the inner wall of the external connection tube 1301. The outer wall of the movable rod 1302 is fixedly connected with a pair of built-in balls 1308, and the outer walls of the pair of built-in balls 1308 are in contact with one end of the detachable collecting frame 5 close to the movable rod 1302. The inner walls of a pair of ball rings 1303 are movably connected with multiple balls, and the outer walls of the multiple balls are in contact with the outer wall of the special-shaped rod 1304.

[0034] During the use of this solution, during the feeding and pressing processes, the overflowed raw material powder falls into the detachable collection frame 5 through the collecting bucket 2, and falls on the filter mesh 501. The dust and impurities therein are filtered through the filter mesh 501, and during the movement and displacement of the detachable collection frame 5, a pair of ball rings 1303 respectively move synchronously along a pair of special-shaped rods 1304, driving a pair of movable rods 1302 to move toward or away from each other under the alternating switching of multiple peak-valley and flat-valley paths on the special-shaped rods 1304, pushing a pair of spreading strips 1305 to move toward or away from each other, and spreading the raw material powder accumulated on the filter mesh 501 back and forth. At the same time, a pair of built-in balls 1308 repeatedly contact and collide with one end of the detachable collection frame 5 to generate vibration, so that the raw material powder spread by the filter mesh 501 can be quickly filtered and collected by falling under the action of vibration, reducing the possibility of blockage and enhancing the filtering and collection effect.

[0035] Working principle: First, drive the first motor 701 to drive the screw rod 702 to rotate, so that the movable sleeve 703 moves horizontally under the rotation of the screw rod 702, and drives the collecting hopper 2, the mold barrel 4 and the detachable collecting frame 5 to move to the feeding area. Then the first electric telescopic rod 803 drives the storage hopper 805 and the discharge pipe 806 to move downward, so that the bottom end of the discharge pipe 806 extends to the inside of the mold barrel 4, and after the discharge pipe 806 is inserted, the control valve 807 is opened, so that the raw material powder inside the storage hopper 805 is discharged downward to the inside of the mold barrel 4 through the discharge pipe 806. At the same time, the second motor 802 drives the first electric telescopic rod 803 to rotate, so that it drives the storage hopper 805 and the discharge pipe 806 along the connecting sleeve frame 804. The mold barrel 4 performs multi-directional discharging, and the gear 1101 rotates synchronously with the first electric telescopic rod 803, and drives the rack plate 1102 to move toward the removable upper mold 1006 under the sliding assistance of the slider 11021 and the slide groove 11022 through the meshing transmission action, pushing the tray 1103 and the visual inspection device 1104 and the cleaning wipe 1105 close to the removable upper mold 1006 and contacting its bottom end, so that a pair of cleaning wipes 1105 cleans the dust at the bottom of the removable upper mold 1006. At the same time, the visual inspection device 1104 cooperates with the die inspection terminal 1007 to detect whether there is any damage or defect at the bottom of the removable upper mold 1006. If there is any damage or defect, the relevant staff will be notified to replace it. After the inspection, The second motor 802 drives the first electric telescopic rod 803 to rotate in the opposite direction, driving the rack plate 1102, the tray 1103, the visual inspection device 1104 and the cleaning wipe 1105 to reset. During the back-and-forth rotation of the storage hopper 805, the discharge pipe 806 and the connecting sleeve 804, the outer cylinder 901 rotates synchronously with the connecting sleeve 804, driving the T-shaped rod 902 and the movable hemisphere 907 to rotate synchronously along the inner top of the mounting plate 801, causing the movable hemisphere 907 to repeatedly contact and separate with the plurality of fixed hemispheres 908 during the rotation process, driving the movable hemisphere 907 to move up and down along the inside of the outer cylinder 901 with the assistance of the elastic sleeve 903, and squeezing the air inside the outer cylinder 901 when moving downward. The air is blown to the inside of the discharge pipe 806 through the one-way conduction of the blowing pipe 904 and the one-way valve 905, and the agglomerated raw material powder inside the discharge pipe 806 is blown away. At the same time, the raw material powder remaining on the inner wall of the discharge pipe 806 is blown and falls into the inside of the mold barrel 4. After the feeding is completed, the first motor 701 is driven again to drive the screw rod 702 to rotate in the opposite direction, and the collecting bucket 2, the mold barrel 4 and the detachable collecting frame 5 are driven to move to the pressing area through the movable sleeve 703. When the mold barrel 4 corresponds to the detachable upper mold 1006, the sliding rod cylinder 1004 drives the detachable upper mold 1006 to move downward and extend to the inside of the mold barrel 4, and a pair of rolling pulleys 1202 move synchronously along a pair of side sliding rails 1201 respectively.And drive a pair of elliptical plates 1203 to rotate, and when the bottom end of the detachable upper mold 1006 begins to enter the mold barrel 4, a plurality of evenly distributed collision balls 1206 appear on the falling path of the pair of elliptical plates 1203, so that during the rotation process, the pair of elliptical plates 1203 use the protruding ends to repeatedly contact and collide with the plurality of collision balls 1206, so that the straight plate 1205 generates vibration during the repeated contact and collision process, and transmits it to the collecting bucket 2 and the mold barrel 4, causing the collecting bucket 2 and the mold barrel 4 to also vibrate, causing the mold barrel 4 to use the vibration effect to drive the raw material powder inside it to disperse during the pressing process of the detachable upper mold 1006, and to perform uniform pressing, and under the action of vibration, it is also convenient for the overflowed raw material to quickly fall from the top edge of the mold barrel 4 to the inside of the collecting bucket 2, and after the pressing is completed, after the laser-reinforced wear-resistant powder metallurgy valve seat blank is formed, the two pairs of third electric telescopic rods 1204 retract towards each other. The detachable upper mold 1006 moves away from the second electric telescopic rod 1002 and the lower mold 1003, and then the laser-enhanced wear-resistant powder metallurgy valve seat blank is discharged under the action of the rising and moving of the detachable upper mold 1006 and the pushing action of the second electric telescopic rod 1002 and the lower mold 1003. Then, the collecting bucket 2, the mold barrel 4 and the detachable collecting frame 5 are driven to move to the feeding area again. In the process of movement, a pair of ball rings 1303 respectively move synchronously along a pair of special-shaped rods 1304, driving a pair of movable rods 1302 to move toward or away from each other under the alternating switching of multiple peaks and valleys and flat valleys on the special-shaped rods 1304, pushing a pair of spreading strips 1305 to move toward or away from each other, and spreading the raw material powder accumulated on the filter mesh 501 back and forth. At the same time, a pair of built-in balls 1308 repeatedly contact and collide with one end of the detachable collecting frame 5 to generate vibration, so that the raw material powder spread by the filter mesh 501 can be quickly filtered and collected by falling under the action of vibration.

[0036] 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 laser-reinforced wear-resistant powder metallurgy valve seat, comprising a concave platform (1), characterized in that: A collecting hopper (2) is provided at the top of the concave platform (1), and a mold barrel (4) is provided inside the collecting hopper (2); a plurality of round rods (3) are fixedly connected between the inner wall of the collecting hopper (2) and the outer wall of the mold barrel (4); a detachable collecting frame (5) is provided at the bottom of the collecting hopper (2), and a pair of sleeve sealing plates (6) are connected to the top of the detachable collecting frame (5) by bolts; the outer wall of the collecting hopper (2) is in close contact with the inner wall of the pair of sleeve sealing plates (6); a moving displacement mechanism (7) is provided between the bottom end of the detachable collecting frame (5) and the inner wall of the concave platform (1); a material spreading mechanism (13) is provided between the inside of the detachable collecting frame (5) and the inner wall of the concave platform (1); a pressing mechanism (10) is provided between the inside of the detachable collecting frame (5), the mold barrel (4) and the top of the concave platform (1); and a rotating feeding mechanism (8) is provided between the top of the mold barrel (4) and the top of the concave platform (1); The rotary feeding mechanism (8) comprises a mounting plate (801) fixedly connected to the top of the concave platform (1); the top of the mounting plate (801) is fixedly connected to a second motor (802) via an L-shaped plate; the mounting plate (801) is rotatably connected to a first electric telescopic rod (803) via a bearing; the top of the first electric telescopic rod (803) is fixedly connected to an output end of the second motor (802); the bottom of the first electric telescopic rod (803) is fixedly connected to a connecting sleeve (804); and the inner wall of the connecting sleeve (804) is fixedly connected to the connecting sleeve. A storage hopper (805) is connected, the bottom end of the storage hopper (805) is fixedly connected to a discharge pipe (806), and the bottom end of the discharge pipe (806) is located inside the mold barrel (4), the outer wall of the discharge pipe (806) is fixedly connected to a control valve (807), the top of the storage hopper (805) is sleeved with a sealing plug (808), and the outer wall of the sealing plug (808) is in close contact with the inner wall of the storage hopper (805), and an air blowing and dispersing mechanism (9) is provided between the outer wall of the discharge pipe (806) and the inner top end of the mounting plate (801); The air blowing and dispersing mechanism (9) comprises an outer embedded cylinder (901) embedded in the outer wall of the connecting sleeve frame (804), a T-shaped rod (902) is slidably connected to the interior of the outer embedded cylinder (901), and an elastic sleeve (903) is fixedly connected between one end of the T-shaped rod (902) and the inner wall of the outer embedded cylinder (901), a through hole is drilled in the inner wall of the outer embedded cylinder (901), and one end of the T-shaped rod (902) away from the elastic sleeve (903) passes through the through hole and is fixedly connected to a movable hemisphere (907), The inner top of the mounting plate (801) is fixedly connected to a plurality of evenly distributed fixed hemispheres (908), and the movable hemisphere (907) is in contact with the fixed hemisphere (908); the outer wall of the external embedded cylinder (901) is drilled with a plurality of air holes, and the inner walls of the air holes are fixedly connected to a waterproof breathable sheet (906); an air blowing pipe (904) is fixedly connected between the bottom end of the external embedded cylinder (901) and the outer wall of the discharge pipe (806), and the outer wall of the air blowing pipe (904) is fixedly connected to a one-way valve (905).

2. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 1, characterized in that: The movable transposition mechanism (7) comprises a first motor (701) mounted on one end of the concave platform (1); a screw rod (702) is rotatably connected between the inner walls of the concave platform (1) via a bearing, and one end of the screw rod (702) is fixedly connected to the output end of the first motor (701); a movable sleeve block (703) is sleeved on the outer wall of the screw rod (702); a threaded hole is drilled on the outer wall of the movable sleeve block (703); and the movable sleeve block (703) is threadedly connected to the outer wall of the screw rod (702) via the threaded hole; and the bottom end of the detachable collection frame (5) is connected to the top end of the movable sleeve block (703).

3. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 1, characterized in that: The die pressing mechanism (10) comprises a connection platform (1001) fixedly connected to the inner wall of the collecting hopper (2), the top end of the connection platform (1001) being fixedly connected to a second electric telescopic rod (1002), the interior of the mold barrel (4) being provided with a lower mold (1003) in close contact with the lower mold (1003), the bottom end of the lower mold (1003) being fixedly connected to the top end of the second electric telescopic rod (1002), the top end of the concave platform (1) being fixedly connected to a slide cylinder (1004), and the output end of the slide cylinder (1004) being fixedly connected to a connection platform (1001). A seat (1005) is provided, the top end of the connecting seat (1005) is fixedly connected to a die detection terminal (1007), the bottom end of the connecting seat (1005) is fixedly connected to a detachable upper die (1006), and the outer diameter of the detachable upper die (1006) matches the inner diameter of the mold barrel (4), a movable detection mechanism (11) is provided between the outer wall of the first electric telescopic rod (803) and the bottom end of the detachable upper die (1006), and a pressing vibration mechanism (12) is provided between the connecting seat (1005) and the outer wall of the collecting bucket (2).

4. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 3, characterized in that: The mobile detection mechanism (11) comprises a gear (1101) sleeved on the outer wall of the first electric telescopic rod (803); the outer wall of the gear (1101) is meshedly connected with a rack plate (1102), and the bottom end of the rack plate (1102) is slidably connected to the top end of the mounting plate (801); one end of the rack plate (1102) close to the detachable upper mold (1006) is fixedly connected to a support tray (1103), and the interior of the support tray (1103) is fixedly connected to a visual detection device (1104), the visual detection device (1104) is electrically connected to a die detection terminal (1007), and the top end of the pair of cleaning wipes (1105) is fixedly connected to the bottom end of the detachable upper mold (1006).

5. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 4, characterized in that: The bottom end of the rack plate (1102) is fixedly connected to a sliding block (11021), the top end of the mounting plate (801) is provided with a sliding groove (11022), and the sliding block (11021) is located in the sliding groove (11022) and is slidably connected thereto.

6. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 3, characterized in that: The vibration suppression mechanism (12) comprises a pair of side sliding rails (1201), the opposite sides of the pair of side sliding rails (1201) are fixedly connected to the outer wall of the concave platform (1), the inside of the pair of side sliding rails (1201) is provided with a rolling pulley (1202), and the outer wall of the rolling pulley (1202) is slidably connected to the inner wall of the side sliding rail (1201), and the outer wall of the pair of rolling pulleys (1202) is rotatably connected to an elliptical plate via a rotating shaft. (1203), the outer wall of the collecting bucket (2) is fixedly connected with two pairs of third electric telescopic rods (1204), and the ends of the two pairs of third electric telescopic rods (1204) that are away from each other are fixedly connected with straight plates (1205), and the ends of the two pairs of straight plates (1205) that are close to the side sliding track (1201) are fixedly connected with a plurality of uniformly distributed collision balls (1206), and the outer wall of the collision balls (1206) is in contact with one end of the elliptical plate (1203).

7. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 1, characterized in that: The material spreading mechanism (13) comprises a pair of external connection tubes (1301) fixedly connected to the outer wall of the detachable collection frame (5), and a movable rod (1302) is provided inside the pair of external connection tubes (1301). The inner wall of the external connection tube (1301) and one end of the detachable collection frame (5) close to the movable rod (1302) are both provided with circular holes, and one end of the movable rod (1302) passes through the circular hole on one side and is fixedly connected to a ball ring (1303). A pair of special-shaped rods (1304) are fixedly connected between the inner walls of the concave platform (1), and the pair of ball rings (1303) are respectively sleeved on the outer walls of the pair of special-shaped rods (1304), and the other end of the movable rod (1302) passes through the circular hole on the other side and extends to the detachable collection frame (5 ), the outer wall of the movable rod (1302) is fixedly connected with a spreading strip (1305), the inner wall of the detachable collecting frame (5) is fixedly connected with a filtering mesh (501), and the bottom end of the spreading strip (1305) contacts the top end of the filtering mesh (501), the outer wall of the movable rod (1302) is sleeved with a circular plate, the outer wall of the movable rod (1302) is sleeved with a spring (1306), and the two ends of the spring (1306) are respectively fixedly connected to one end of the built-in circular plate (1307) and the inner wall of the external connection tube (1301), the outer wall of the movable rod (1302) is fixedly connected with a pair of built-in balls (1308), and the outer walls of the pair of built-in balls (1308) are both in contact with one end of the detachable collecting frame (5) close to the movable rod (1302).

8. The laser-reinforced wear-resistant powder metallurgy valve seat according to claim 7, characterized in that: The inner walls of the pair of ball collars (1303) are movably connected to a plurality of balls, and the outer walls of the plurality of balls are in contact with the outer wall of the special-shaped rod (1304).

Images