Mixed extrusion equipment for hard alloy cutter production

Abstract

The invention discloses mixed extrusion equipment for hard alloy cutter production, which comprises a base arranged on an objective table through a bolt, an extrusion forming assembly is arranged on the base, and the extrusion forming assembly comprises an annular mold. When the improved mixed extrusion equipment for production of the hard alloy cutter is used, filling of metal powder in the die cavity and extrusion forming operation of the metal powder in the die cavity can be completed in sequence through circulating rotation of the die cavity, an alloy cutter rough blank is formed, reciprocating movement of the die is not needed, the machining rate of the alloy cutter rough blank is increased, and production efficiency is improved. And air flow formed by the air pump can synchronously suck away metal powder on the mold and the inner wall of the mold groove in the rotating process of the mold, the metal powder is collected and recycled, workers do not need to clean the mold, the workload of the workers is reduced, and the loss of raw materials in the production process of alloy cutters is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tool production equipment, and in particular to mixed extrusion equipment for producing cemented carbide tools. Background Art

[0002] Powder metallurgy is an advanced material preparation and forming technology. It uses metal powder as raw material to manufacture materials or parts with specific shapes, sizes and properties through forming and sintering processes. This technology has the advantages of high material utilization, low cost, ability to prepare parts with complex shapes and excellent performance. Some alloy tools are made by powder metallurgy. Generally, various metal powders are mixed through mixing equipment, and then the metal powder is extruded through extrusion equipment to form alloy tool blanks, which are then sintered to form a sintered body with a certain strength and density. Finally, they are heat treated and subsequently machined to form finished alloy tool products.

[0003] When the existing mixed extrusion equipment is used, the metal powder in the storage hopper is generally dropped into the die cavity of the mold through the reciprocating movement of the mold, thereby completing the filling operation of the metal powder in the die cavity. A small amount of metal powder may remain on the surface of the mold and near the mold, which needs to be cleaned by the staff, increasing the workload of the staff. In addition, with the drive of the external air flow, the metal powder may drift around the device, resulting in unnecessary raw material loss in the production process of alloy tools. As the metal powder naturally falls and fills, voids may be generated inside the metal powder, resulting in deviations in the filling amount of the metal powder in the die cavity, affecting the production of alloy tools. Summary of the invention

[0004] The object of the present invention is to provide a mixed extrusion device for producing cemented carbide cutting tools, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mixed extrusion device for producing cemented carbide cutting tools, comprising a base mounted on a stage by bolts, an extrusion molding assembly being provided on the base, the extrusion molding assembly comprising a die arranged in an annular shape, the bottom of the die being rotatably mounted in a mounting groove of the base by a bearing, an annular groove being provided on the top side of the die, a plurality of die grooves being provided in a circumferential array on the inner bottom wall of the annular groove, a driving mechanism being provided at the bottom end of the die, a compacting mechanism being provided at the front end of the top side of the die, and a feeding mechanism being provided at the right end of the top side of the die; A cleaning assembly is provided between the compacting mechanism and the feeding mechanism, and the cleaning assembly includes an air pump, the air pump passes through the inner hole of the mold, and the bottom end of the air pump is fixedly connected to the bottom wall of the mounting groove of the base, a suction hood is provided at the position above the mold corresponding to the compacting mechanism, a suction pipe is slidably penetrated at the center position of the top of the suction hood, the exhaust end of the suction pipe is connected to the air inlet end of the air pump through a connecting pipe, a plurality of L-shaped square tubes are fixedly penetrated in a circular array on the outer peripheral wall of the bottom end of the suction hood, the opposite ends of the square tube and the bottom end of the square tube are both open, a guide block with a triangular cross-section is fixedly installed at the corner position in the square tube, and the top side of the guide block is coplanar with the inner bottom wall of the corresponding square tube air inlet, and a deep cleaning mechanism is provided at the rear end of the top side of the base.

[0006] Preferably, a storage groove in the shape of a ring is opened on the bottom side of the suction hood, and the storage groove is located below a plurality of square tubes. A soft ring is provided in the storage groove, and the outer peripheral wall of the soft ring is interference fit with the inner wall of the storage groove, and the bottom end of the soft ring extends outside the storage groove.

[0007] Preferably, the inner top wall of the suction hood is in an arc shape, a plurality of suction holes are provided in a circular array on the outer peripheral wall of the bottom end of the suction pipe, and a soft pad in an annular shape is fixedly mounted on the bottom end of the suction pipe.

[0008] Preferably, the compacting mechanism includes a hydraulic rod and a support plate, the hydraulic rod is arranged above the front end mold groove, and the hydraulic rod is fixedly connected to the base through a support frame and bolts, the bottom end of the hydraulic rod is fixedly equipped with a pressure block by bolts, and a suction hood is arranged at a position of the mold groove on the outer peripheral side of the pressure block, the bottom side of the pressure block is located below the suction hood, the top of the suction pipe and the driving rod of the hydraulic rod are respectively fixed through the two ends of the support plate, a first spring is wound around the outer peripheral side of the suction pipe, and the two ends of the first spring are respectively fixedly connected to the support plate and the suction hood, a positioning plate is provided on the outer peripheral side fixed sleeve of the bottom end of the suction pipe, and the positioning plate is located between the suction hole and the inner wall of the suction hood.

[0009] Preferably, the driving mechanism includes a gear ring, a motor is fixedly mounted on the inner bottom wall of the base mounting hole, and the motor is located on the outer peripheral side of the air pump, the gear ring is fixedly mounted in the bottom end opening of the mold, a gear is fixedly mounted on the driving end of the motor, and the gear is meshingly connected with the gear ring.

[0010] Preferably, a plurality of positioning grooves are provided in a circular array on the inner bottom wall of the base mounting groove, a placement groove is provided at the position corresponding to the positioning groove on the bottom side of the mold, a round rod is slidably installed in the placement groove, a ball is rotatably installed at the bottom end of the round rod, and the bottom end of the ball is inserted into the corresponding positioning groove and connected to the inner wall of the corresponding positioning groove, a second spring is provided at the top end of the round rod, and the two ends of the second spring are respectively fixedly connected to the corresponding round rod and the inner wall of the corresponding placement groove.

[0011] Preferably, the deep cleaning mechanism includes a fixed cylinder, which is located above the rear end mold groove and is fixedly connected to the base by a bracket and bolts, the top of the fixed cylinder is hemispherical, and a plurality of guide tubes are fixedly installed and penetrated in a circumferential array on the outer peripheral wall of the bottom end of the fixed cylinder, a diverter shell is fixedly installed at the position of the guide tube on the outer peripheral side of the fixed cylinder corresponding to the guide tube, and the interior of the air inlet of the guide tube is connected to the interior of the diverter shell, the two exhaust ends of the air pump are connected and equipped with exhaust pipes, and the exhaust end of each exhaust pipe is fixedly penetrated through the shell wall of the diverter shell, the exhaust end of the fixed cylinder is connected and equipped with a valve, a guide ring is fixedly installed in the bottom opening of the fixed cylinder, and the exhaust end of the guide tube is fixedly penetrated through the annular wall of the guide ring, the bottom end of the guide ring extends to the outside of the fixed cylinder and is coplanar with the inner bottom wall of the annular groove, and the bottom exhaust port of the guide ring is flared.

[0012] Preferably, two sieve plates are relatively fixedly installed on the outer peripheral wall of the top of the fixed cylinder, two sealing plates are relatively installed on the outer peripheral side of the top of the fixed cylinder, and the sealing plates are in contact with the corresponding sieve plates and the outer wall of the fixed cylinder, two groups of circular grooves are relatively opened on the outer wall of the fixed cylinder, and each group of circular grooves is arranged in a circular array on the outer peripheral side of the corresponding sieve plate, a third spring is provided in the circular groove, and the two ends of the third spring are respectively fixedly connected to the corresponding sealing plate and the inner wall of the corresponding circular groove, a guide rod is slidably installed at the center position of the sieve plate, and the guide rod is fixedly connected to the corresponding sealing plate.

[0013] Preferably, the feeding mechanism includes a storage hopper, a sealing cover is installed through the front end thread of the top side of the storage hopper, a filter plate is fixedly installed through the center position of the top side of the storage hopper, the bottom end opening of the storage hopper is located above the right end mold groove, and the storage hopper is fixedly connected to the base through a mounting plate and bolts, the bottom end of the storage hopper and the bottom end of the fixed cylinder are jointly fixedly sleeved with a pressure plate, and the outer peripheral wall of the pressure plate is in contact with the inner wall of the annular groove, the bottom side of the pressure plate, the bottom side of the fixed cylinder and the bottom side of the storage hopper are jointly fixedly installed with a soft belt, and the soft belt is in contact with the inner wall of the annular groove, and the shapes of the cross sections of the two through holes on the soft belt are respectively the same as the shapes of the cross sections of the bottom end opening of the fixed cylinder and the shapes of the cross sections of the bottom end opening of the storage hopper.

[0014] Preferably, an air injection pipe is threadedly installed at the center position of the filter plate, and the air inlet end of the air injection pipe is connected to the exhaust end of the valve through a soft pipe, a guide plate is provided below the air injection pipe, and the outer peripheral wall of the guide plate is in contact with the inner wall of the discharge port of the storage hopper, and the shape of the guide plate is an arc-shaped plate that is tilted toward all sides from the center position, a push rod is fixedly installed at the center position of the arc surface on the top side of the guide plate, and the top of the push rod is inserted into the bottom opening of the air injection pipe, a pad is provided on the outer peripheral sliding sleeve of the push rod, and the pad is fixedly connected to the inner wall of the bottom opening of the air injection pipe through a connecting strip, a fourth spring is wrapped around the outer peripheral side of the top of the push rod, and the two ends of the fourth spring are respectively fixedly connected to the pad and the top of the push rod.

[0015] The present invention has at least the following beneficial effects: 1. When the improved mixed extrusion equipment for producing cemented carbide tools is used, the metal powder filling and extrusion molding operations in the die groove can be completed in sequence through the cyclic rotation of the die groove to form a rough alloy tool blank. The mold does not need to move back and forth, which improves the processing rate of the rough alloy tool blank. The airflow formed by the air pump can simultaneously absorb the metal powder on the mold and the inner wall of the die groove during the rotation of the mold, and collect the metal powder for reuse. The staff does not need to clean the mold, which reduces the workload of the staff and reduces the loss of raw materials in the production process of alloy tools. 2. When the above equipment is used to feed alloy powders, the operator pours various metal powders into the feeding mechanism, and then starts the air pump to continuously absorb external gas through the suction pipe and the suction cover, and intermittently injects gas into the feeding mechanism through the deep cleaning mechanism, so that the various metal powders in the feeding mechanism are located in the feeding mechanism and float up in a disorderly manner, so that the various metal powders are fully mixed, and the operator does not need to use mixing equipment to mix the metal powders, thereby skipping the transportation operation of the metal powders, improving the production efficiency of the alloy cutting tools, and reducing the labor intensity of the staff.

[0016] 3. When the raw material is filled in the die groove as described above, as the mold rotates, the die groove moves to the bottom of the feeding mechanism in sequence, and part of the metal powder in the feeding mechanism falls into the die groove due to its own gravity, and compacts the metal powder in the die groove to avoid a large deviation in the amount of metal powder in the die groove that affects the production of alloy tools; 4. When the metal powder in the die groove is extruded, the alloy tool blank after extrusion molding in the die groove can be pulled out of the die groove simultaneously, and then the sucked alloy tool blank can be removed manually or by a robot. In the process of taking the alloy tool blank out of the die groove, the metal powder attached to the alloy tool blank can be blown off by airflow, so that no metal powder that can fall off will be attached to the alloy tool blank, so as to avoid the metal powder falling off the alloy tool blank when taking out the alloy tool blank, thereby preventing unnecessary raw material loss when taking out the alloy tool blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the overall structure of the reverse side; Figure 3 It is a schematic diagram of the overall structure of the base and the pressing plate of the present invention; Figure 4 It is a schematic diagram of the overall structure of the base and the mold of the present invention; Figure 5 It is a schematic diagram of the internal structure of the base and the mold of the present invention; Figure 6 It is a right view of the base and the internal structure of the mold of the present invention; Figure 7 For the present invention Figure 6 A magnified view of the structure at center A; Figure 8 It is a front view of the internal structure of the pressing plate and the soft belt of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the hydraulic rod and the suction cover of the present invention; Fig.10 It is a schematic diagram of the internal structure of the suction cover and the suction pipe of the present invention; Fig.11 For the present invention Fig.10 A magnified view of the structure at B in the middle; Fig.12 It is a schematic diagram of the overall structure of the air pump, the fixing cylinder and the air injection pipe of the present invention; Fig.13 It is a schematic diagram of the internal structure of the fixed cylinder and the diverter shell of the present invention; Fig.14 For the present invention Fig.13 A magnified view of the structure at C in the middle; Fig.15 For the present invention Fig.13 A magnified view of the structure at D in the middle; Fig.16 It is a front view of the internal structure of the storage hopper of the present invention; Fig.17 It is a schematic diagram of the internal structure of part of the gas injection pipe and the guide plate of the present invention.

[0019] In the figure: 1, base; 2, extrusion molding assembly; 21, mold; 22, annular groove; 23, mold groove; 24, driving mechanism; 241, motor; 242, gear ring; 243, gear; 244, positioning groove; 245, placement groove; 246, round rod; 247, ball; 248, second spring; 25, compacting mechanism; 251, hydraulic rod; 252, pressing block; 253, support plate; 254, first spring; 255, positioning plate; 26, feeding mechanism; 261, storage hopper; 262, cover; 263, filter plate; 265, pressing plate; 266, soft belt; 267, injection Air pipe; 268, soft pipe; 269, guide plate; 270, push rod; 271, pad; 272, fourth spring; 3, cleaning assembly; 31, air pump; 32, suction hood; 33, suction pipe; 34, square pipe; 35, guide block; 36, suction hole; 37, soft pad; 38, connecting pipe; 39, storage tank; 310, soft ring; 4, deep cleaning mechanism; 41, fixing cylinder; 42, guide pipe; 43, diversion shell; 44, exhaust pipe; 45, valve; 46, guide ring; 47, sieve plate; 48, sealing plate; 49, round groove; 410, third spring; 411, guide rod. DETAILED DESCRIPTION

[0020] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The present invention provides a technical solution: referring to Figure 1 - Fig.17 The present invention discloses a mixed extrusion device for producing cemented carbide cutting tools, comprising a base 1 mounted on a stage by bolts, an extrusion molding assembly 2 being provided on the base 1, the extrusion molding assembly 2 comprising a die 21 arranged in an annular shape, the bottom of the die 21 being rotatably mounted in a mounting groove of the base 1 by a bearing, an annular groove 22 being provided on the top side of the die 21, a plurality of die grooves 23 being provided in a circumferential array on the inner bottom wall of the annular groove 22, a driving mechanism 24 being provided at the bottom end of the die 21, a compacting mechanism 25 being provided at the front end of the top side of the die 21, and a feeding mechanism 26 being provided at the right end of the top side of the die 21; A cleaning assembly 3 is provided between the compacting mechanism 25 and the feeding mechanism 26. The cleaning assembly 3 includes an air pump 31. The air pump 31 passes through the inner hole of the mold 21, and the bottom end of the air pump 31 is fixedly connected to the bottom wall of the mounting groove of the base 1. A suction hood 32 is provided above the mold 21 at a position corresponding to the compacting mechanism 25. A suction pipe 33 is slidably penetrated at the center position of the top of the suction hood 32. The exhaust end of the suction pipe 33 is connected to the air inlet end of the air pump 31 through a connecting pipe 38. A plurality of square tubes 34 in an L-shape are fixedly penetrated in a circular array on the outer peripheral wall of the bottom end of the suction hood 32. The opposite ends of the square tubes 34 and the bottom ends of the square tubes 34 are both opened. A guide block 35 with a triangular cross-section is fixedly installed at a corner position in the square tube 34, and the top side of the guide block 35 is coplanar with the inner bottom wall of the corresponding square tube 34 air inlet. A deep cleaning mechanism 4 is provided at the rear end of the top side of the base 1.

[0022] In this embodiment, when the improved mixed extrusion equipment for producing cemented carbide tools is used, the operator pours various metal powders into the feeding mechanism 26, and then the air pump 31 is started to continuously absorb external gas through the suction pipe 33 and the suction cover 32, and the gas is intermittently injected into the feeding mechanism 26 through the deep cleaning mechanism 4, so that the various metal powders in the feeding mechanism 26 are located in the feeding mechanism 26 and float up in a disorderly manner, so that the various metal powders are fully mixed, and the operator does not need to use a mixing device to mix the metal powders, thereby avoiding the transportation operation of the metal powders, improving the production efficiency of the alloy tool, and reducing the labor intensity of the staff; After the above-mentioned metal powder feeding operation is completed, the driving mechanism 24 drives the mold 21 to be located in the annular groove 22 to rotate intermittently and slowly, so that the mold groove 23 is aligned with the feeding mechanism 26 in turn, and the feeding mechanism 26 fills the metal powder in the mold groove 23 in turn and compacts the metal powder in the mold groove 23 to avoid a large deviation in the filling amount of the metal powder in the mold groove 23 affecting the production of the alloy tool, and then moves the compacted metal powder to the bottom of the compacting mechanism 25 in turn, and the compacting mechanism 25 presses the metal powder to extrude the metal powder into a rough alloy tool blank; After the alloy tool blank is formed, the alloy tool blank is moved to the bottom of the suction hood 32 by rotating the mold 21. When the compacting mechanism 25 performs subsequent extrusion forming of the metal powder, the suction hood 32 and the suction pipe 33 can be pushed downward synchronously. When the distance between the suction hood 32 and the inner bottom wall of the annular groove 22 reaches a threshold value, the gas flow on the inner bottom wall of the annular groove 22 around the die groove 23 continues to flow into the suction hood 32. After the suction hood 32 and the inner bottom wall of the annular groove 22 collide with each other, the suction pipe 33 continues to move downward until the bottom end of the suction pipe 33 contacts the alloy tool blank. At this time, a negative pressure chamber is formed in the suction pipe 33 to adsorb and fix the alloy tool blank to the bottom end of the suction pipe 33. Then, the alloy tool blank is taken out of the die groove 23 together with the resetting of the compacting mechanism 25. In the process of taking the alloy tool blank out of the die groove 23, outside air flows into the square tube 34 from the feeding end of the square tube 34 and flows along the square tube 34. When the gas flows to the position of the guide block 35, the guide block 35 cuts and guides the gas, and the gas is divided into two streams and discharged from the two exhaust ports of the square tube 34 respectively. When the bottom end of the suction pipe 33 is close to the alloy tool blank, the airflow blows off the metal powder attached to the top side of the alloy tool blank, and when the alloy tool blank is moved into the suction groove, the airflow sequentially cleans the metal powder attached to the outer peripheral side and the bottom side of the alloy tool blank, and at the same time completes After the preliminary cleaning of the inner wall of the die groove 23, the airflow carries the blown-down metal powder particles and injects them into the deep cleaning mechanism 4. Through the mutual collision between the metal powder particles in the airflow and the metal particles attached to the inner wall of the die groove 23, the metal powder particles with strong adhesion between the inner wall of the die groove 23 and the inner wall of the die groove 23 are knocked off from the inner wall of the die groove 23, completing the deep cleaning of the die groove 23. Finally, the cleaned die groove 23 is moved back to the bottom of the feeding mechanism 26 to re-fill the metal powder. The die 21 does not need to reciprocate, thereby improving the processing rate of the alloy tool blank. The cleaned metal powder is directly injected into the feeding mechanism 26 by the airflow, and the cleaning of the mold 21 and the collection and recycling of the metal powder are completed in real time without the operator having to perform other operations, thereby reducing the workload of the staff and the loss of raw materials in the production process of alloy tools; It should be noted that the above-mentioned air pump 31 is a vortex air pump 31 .

[0023] In a further preferred embodiment of the present invention, Figure 2 , Fig.10 and Fig.11 As shown, a storage groove 39 in the shape of an annular arrangement is provided on the bottom side of the suction cover 32, and the storage groove 39 is located below the plurality of square tubes 34. A soft ring 310 is provided in the storage groove 39, and the outer peripheral wall of the soft ring 310 is interference fit with the inner wall of the storage groove 39, and the bottom end of the soft ring 310 extends outside the storage groove 39; In this embodiment, during the process of the suction hood 32 being fitted with the inner bottom wall of the annular groove 22, due to the pressure of the suction hood 32 and the mold 21 on the sealing ring, the ring wall of the soft ring 310 shrinks and shrinks into the annular groove 22, so that the soft ring 310 is tightly fitted with the inner bottom wall of the annular groove 22 to block the gap between the suction hood 32 and the inner bottom wall of the annular groove 22, thereby forming a relatively stable closed space in the suction hood 32, and at this time, due to the loss of gas in the suction hood 32, a negative pressure cavity is formed in the suction hood 32, and a pressure difference is formed between the exhaust end of the square tube 34 and the air inlet end of the square tube 34, and the outside gas flows into the square tube 34 from the air inlet end of the square tube 34.

[0024] In a further preferred embodiment of the present invention, Fig.10 As shown, the inner top wall of the suction cover 32 is arranged in an arc shape, a plurality of suction holes 36 are provided in a circular array on the outer peripheral wall of the bottom end of the suction pipe 33, and a soft pad 37 in an annular shape is fixedly installed at the bottom end of the suction pipe 33; In this embodiment, after the suction tube 33 is fitted with the alloy tool blank, due to the squeezing of the suction tube 33 and the alloy tool blank on the soft pad 37, the soft pad 37 is adaptively contracted and deformed according to the contact position of the alloy tool blank, so that the soft pad 37 is in close contact with the alloy tool blank, and then the alloy tool blank and the bottom end opening of the suction tube 33 are blocked. At this time, due to the limited amount of gas passing through the suction hole 36, a negative pressure cavity is formed in the suction tube 33, and an adsorption force is applied to the alloy tool blank, so that the alloy tool blank is adsorbed and fixed to the bottom end of the suction tube 33, so that the alloy tool blank can be directly pulled out of the die groove 23 during the resetting process of the compaction mechanism 25; It should be noted that the soft cushion 37 may be hollow and filled with gas or liquid, so that each part of the soft cushion 37 can shrink and expand accordingly.

[0025] In a further preferred embodiment of the present invention, Figure 1 , Fig. 9 and Fig.10As shown, the compacting mechanism 25 includes a hydraulic rod 251 and a support plate 253. The hydraulic rod 251 is arranged above the front end die groove 23, and the hydraulic rod 251 is fixedly connected to the base 1 through a support frame and bolts. A pressure block 252 is fixedly installed at the bottom end of the hydraulic rod 251 through bolts, and a suction cover 32 is arranged at a position corresponding to the die groove 23 on the outer peripheral side of the pressure block 252. The bottom side of the pressure block 252 is located below the suction cover 32. The top of the suction pipe 33 and the driving rod of the hydraulic rod 251 are fixedly passed through the two ends of the support plate 253 respectively. A first spring 254 is wound around the outer peripheral side of the suction pipe 33, and the two ends of the first spring 254 are fixedly connected to the support plate 253 and the suction cover 32 respectively. A positioning plate 255 is fixedly sleeved on the outer peripheral side of the bottom end of the suction pipe 33, and the positioning plate 255 is located between the suction hole 36 and the inner wall of the suction cover 32. In this embodiment, when the extrusion molding operation of the metal powder in the die groove 23 is performed, the hydraulic rod 251 stretches the pressing block 252 and pushes it into the die groove 23 to complete the extrusion molding operation of the metal powder in the die groove 23. In the process of the pressing block 252 moving down, the suction cover 32 can be pushed downward by the support plate 253 and the first spring 254. After the suction cover 32 and the inner bottom wall of the annular groove 22 contact each other, as the pressing block 252 continues to move downward, the support plate 253 continues to move downward to compress the first spring 254, and drives the suction pipe 33 to continue to slide downward until the soft pad 37 contacts the tool. In the process of the hydraulic rod 251 contracting and pulling the pressing block 252 to move upward and reset, the support plate 253 can be used to drive the suction pipe 33 to move upward and reset. Due to the push of the suction cover 32 by the first spring 254, the suction cover 32 still contacts the inner bottom wall of the annular groove 22. After the positioning plate 255 contacts the inner wall of the suction cover 32, the upward pressing block 252 can drive the suction cover 32 to move upward and reset synchronously through the support plate 253 and the suction pipe 33. When the suction pipe 33 slides in the suction cover 32 , the alloy tool blank can be pulled into the suction cover 32 before the suction cover 32 is separated from the mold 21 , so that the airflow can clean the metal powder on the alloy tool blank.

[0026] In a further preferred embodiment of the present invention, Figure 3 - Figure 5 As shown, the driving mechanism 24 includes a gear ring 242, a motor 241 is fixedly mounted on the inner bottom wall of the mounting hole of the base 1, and the motor 241 is located on the outer peripheral side of the air pump 31, the gear ring 242 is fixedly mounted in the bottom opening of the mold 21, and a gear 243 is fixedly mounted on the driving end of the motor 241, and the gear 243 is meshed and connected with the gear ring 242; In this embodiment, when the mold 21 rotates, the motor 241 starts the driving gear 243 to rotate, and drives the mold to slowly rotate a corresponding angle through the gear ring 242. Since the diameter of the gear ring 242 is much larger than the diameter of the gear 243, the driving force of the motor 241 on the mold 21 is relatively large. It should be noted that the diameter of the gear ring 242 is much larger than the diameter of the gear 243 .

[0027] In a further preferred embodiment of the present invention, Figure 5 - Figure 7 As shown, a plurality of positioning grooves 244 are provided in a circular array on the inner bottom wall of the mounting groove of the base 1, and a placement groove 245 is provided at the position corresponding to the positioning groove 244 on the bottom side of the mold 21, and a round rod 246 is slidably installed in the placement groove 245, and a ball 247 is rotatably installed at the bottom end of the round rod 246, and the bottom end of the ball 247 is inserted into the corresponding positioning groove 244 and contacts the inner wall of the corresponding positioning groove 244, and a second spring 248 is provided at the top end of the round rod 246, and the two ends of the second spring 248 are respectively fixedly connected to the corresponding round rod 246 and the inner wall of the corresponding placement groove 245; In this embodiment, when the above-mentioned mold 21 rotates, due to the mutual interference between the inner arc wall of the positioning groove 244 and the outer arc wall of the ball 247, the ball 247 can be squeezed out of the positioning groove 244. At this time, due to the mutual interference between the ball 247 and the bottom wall of the mounting groove of the base 1 and the push of the second spring 248 on the round rod 246, a supporting force can be applied to the mold 21 from multiple positions of the mold 21, so that the mold 21 can maintain a straight state and rotate slowly, and after the angle adjustment of the mold 21 is completed, the ball 247 is realigned with the next positioning groove 244. Due to the push of the second spring 248 on the round rod 246, the ball 247 is automatically inserted into the positioning groove 244. At this time, the mutual interference between the ball 247 and the inner wall of the positioning groove 244 can apply a restraining force to the mold 21, thereby allowing the mold 21 to stably maintain the adjusted state.

[0028] In a further preferred embodiment of the present invention, Figure 2 , Figure 8 , Fig.12 , Fig.13 and Fig.14As shown, the deep cleaning mechanism 4 includes a fixed cylinder 41, which is located above the rear end mold groove 23, and the fixed cylinder 41 is fixedly connected to the base 1 through a bracket and bolts. The top of the fixed cylinder 41 is hemispherical, and a plurality of guide tubes 42 are fixedly installed in a circular array on the outer peripheral wall of the bottom end of the fixed cylinder 41. A diverter shell 43 is fixedly installed at the position of the guide tube 42 on the outer peripheral side of the fixed cylinder 41, and the interior of the air inlet of the guide tube 42 is communicated with the interior of the diverter shell 43, so that the air The two exhaust ends of the pump 31 are both connected and equipped with exhaust pipes 44, and the exhaust end of each exhaust pipe 44 is fixedly connected to the shell wall of the split shell 43, the exhaust end of the fixed cylinder 41 is connected and equipped with a valve 45, a guide ring 46 is fixedly installed in the bottom opening of the fixed cylinder 41, and the exhaust end of the guide pipe 42 is fixedly connected to the ring wall of the guide ring 46, the bottom end of the guide ring 46 extends to the outside of the fixed cylinder 41 and is coplanar with the inner bottom wall of the annular groove 22, and the bottom exhaust port of the guide ring 46 is set in a flared shape; In this embodiment, the metal powder blown off from the rough alloy tool blank and the inner wall of the die groove 23 and the metal powder sucked from the mold 21 are injected into the diverter shell 43 along with the air flow, and then flow into the guide ring 46 through the guide pipe 42. Since the amount of gas discharged from the exhaust port of the guide ring 46 is limited, part of the mixed gas flowing into the guide ring 46 is discharged from the exhaust port of the guide ring 46, and the other part of the mixed gas gradually fills the internal space of the guide ring 46, and forms a high-pressure cavity in the guide ring 46. At this time, the metal powder mixed with the metal powder is discharged from the exhaust port of the guide ring 46. The mixed gas of particles flows along the inner peripheral wall of the die groove 23 due to the constraint of the guide ring 46, and then the mixed gas diffuses and brings the metal powder particles into full contact with the inner bottom wall of the die groove 23, and finally, through the mutual collision between the metal powder particles in the airflow and the metal particles attached to the inner wall of the die groove 23, the metal powder particles with strong adhesion to the inner wall of the die groove 23 are knocked off from the inner wall of the die groove 23, and then the deep cleaning of the die groove 23 is completed, so as to prevent the metal powder particles on the inner wall of the die groove 23 from affecting the use of the mold 21; It should be noted that the valve 45 is an electrically controlled butterfly valve.

[0029] In a further preferred embodiment of the present invention, Figure 2 , Fig.12 , Fig.13 and Fig.15As shown, two sieve plates 47 are relatively fixedly installed on the outer peripheral wall of the top of the fixed cylinder 41, two sealing plates 48 are relatively installed on the outer peripheral side of the top of the fixed cylinder 41, and the sealing plates 48 are in contact with the corresponding sieve plates 47 and the outer wall of the fixed cylinder 41, and two groups of circular grooves 49 are relatively opened on the outer wall of the fixed cylinder 41, and each group of circular grooves 49 is arranged in a circular array on the outer peripheral side of the corresponding sieve plate 47, a third spring 410 is arranged in the circular groove 49, and the two ends of the third spring 410 are respectively fixedly connected to the corresponding sealing plate 48 and the inner wall of the corresponding circular groove 49, a guide rod is slidably installed at the center position of the sieve plate 47, and the guide rod is fixedly connected to the corresponding sealing plate 48; In this embodiment, after the above-mentioned gas is injected into the fixed cylinder 41, due to the obstruction of the valve 45, the pressure in the fixed cylinder 41 continues to increase, and then a thrust is applied to the sealing plate 48 in the opposite direction away from the fixed cylinder 41, so that the sealing plate 48 is separated from the sieve plate 47, and the blocking state of the holes of the sieve plate 47 is released, so that the excess air in the fixed cylinder 41 passes through the holes of the sieve plate 47 and is discharged from the fixed cylinder 41, so that the air pump 31 does not need to stop running after the valve 45 is closed, and so that after the valve 45 is closed, a high pressure will not be formed in the fixed cylinder 41 to cause damage to the device, and the metal powder particles injected into the fixed cylinder 41 are located in the fixed cylinder 41 and the mold groove 23 due to the blowing of the airflow, The cleaning effect of the metal powder with strong adhesion in the mold groove 23 is enhanced.

[0030] In a further preferred embodiment of the present invention, Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the feeding mechanism 26 includes a storage hopper 261, a sealing cover 262 is threadedly installed through the front end of the top side of the storage hopper 261, a filter plate 263 is fixedly installed through the center position of the top side of the storage hopper 261, the bottom end opening of the storage hopper 261 is located above the right end mold groove 23, and the storage hopper 261 is fixedly connected to the base 1 through a mounting plate and bolts, the bottom end of the storage hopper 261 and the bottom end of the fixed cylinder 41 are jointly fixedly sleeved with a pressing plate 265, and the outer peripheral wall of the pressing plate 265 is in contact with the inner wall of the annular groove 22, the bottom side of the pressing plate 265, the bottom side of the fixed cylinder 41 and the bottom side of the storage hopper 261 are jointly fixedly installed with a soft belt 266, and the soft belt 266 is in contact with the inner wall of the annular groove 22, and the shapes of the cross sections of the two through holes on the soft belt 266 are respectively the same as the shapes of the cross sections of the bottom end opening of the fixed cylinder 41 and the shapes of the cross sections of the bottom end opening of the storage hopper 261; In this embodiment, after the filling operation of the metal powder in the above-mentioned die groove 23 is completed, as the mold 21 rotates, the die groove 23 and the bottom opening of the storage hopper 261 are gradually misaligned. At this time, due to the pressing of the pressure plate 265 on the soft belt 266, the soft belt 266 is close to the inner bottom wall of the annular groove 22, and the rotating mold 21 cooperates with the soft belt 266 to scrape the metal powder in the die groove 23, so that the metal powder carrying a certain amount in the die groove 23 is moved out from under the soft belt 266, and due to the obstruction of the soft belt 266 and the mold 21, the metal powder in the bottom opening of the storage hopper 261 is blocked in the bottom opening of the storage hopper 261 until the bottom opening of the storage hopper 261 is aligned with the subsequent die groove 23, so that the device can complete the filling operation of the metal powder in the die groove 23 in sequence.

[0031] In a further preferred embodiment of the present invention, Figure 1 , Fig.16 and Fig.17 As shown, an air injection pipe 267 is threadedly installed at the center position of the filter plate 263, and the air inlet end of the air injection pipe 267 is connected and installed with the exhaust end of the valve 45 through a soft pipe 268, and a guide plate 269 is provided below the air injection pipe 267, and the outer peripheral wall of the guide plate 269 contacts the inner wall of the discharge port of the storage hopper 261, and the shape of the guide plate 269 is an arc-shaped plate setting that is tilted toward the surroundings from the center position, and a push rod 270 is fixedly installed at the center position of the arc surface on the top side of the guide plate 269, and the top end of the push rod 270 is inserted into the bottom end opening of the air injection pipe 267, and a pad 271 is provided on the outer peripheral side sliding sleeve of the push rod 270, and the pad 271 is fixedly connected to the inner wall of the bottom end opening of the air injection pipe 267 through a connecting strip, and a fourth spring 272 is wound around the outer peripheral side of the top of the push rod 270, and the two ends of the fourth spring 272 are respectively fixedly connected to the pad 271 and the top of the push rod 270; In this embodiment, when performing the feeding operation of the metal powder in the feeding mechanism 26, the operator first twists the gas injection pipe 267 so that the guide plate 269 fits with the inner wall of the bottom opening of the storage hopper 261 to block the bottom opening of the storage hopper 261. Then, the operator twists the cover 262 out of the top opening of the storage hopper 261. At this time, the operator can pour an appropriate amount of various metal powders into the storage hopper 261 from the top opening of the storage hopper 261, and then start the air pump 31 to continuously inject gas into the gas injection pipe 267. The gas discharged from the gas injection pipe 267 is blown onto the inner arc wall of the guide plate 269, and flows around along the inner arc wall of the guide plate 269, blowing up the metal powder in the storage hopper 261, so that various metal powders are located in the storage hopper 261 and float up, so that various metal powders are fully mixed. Finally, the gas passes through the holes of the filter plate 263 and is discharged to the outside of the storage hopper 261, while the metal powder is retained in the storage hopper 261 due to the interception of the filter plate 263, and there is no need to use a mixing device to mix the metal powder.

[0032] Working principle: When the improved mixed extrusion equipment for producing cemented carbide tools is used, the operator first twists the gas injection pipe 267 to make the guide plate 269 fit with the inner wall of the bottom opening of the storage hopper 261, and seal the bottom opening of the storage hopper 261. Then the operator twists the cover 262 out of the top opening of the storage hopper 261. At this time, the operator can pour appropriate amounts of various metal powders into the storage hopper 261 from the top opening of the storage hopper 261. There is a specific free space in the storage hopper 261. After the metal powder is loaded, the operator screws the cover 262 into the top opening of the storage hopper 261 again, and the metal powder loading operation is completed; After the metal powder is added, the operator starts the air pump 31, and continuously absorbs the outside air through the connecting pipe 38, the suction pipe 33 and the suction cover 32, and continuously injects the air into the diversion shell 43, and flows into the guide ring 46 through the guide pipe 42, so that the gas is injected into the fixed cylinder 41, and finally the gas passes through the soft pipe 268 and the gas injection pipe 267 and is injected into the storage hopper 261. The gas discharged from the gas injection pipe 267 blows on the inner arc wall of the guide plate 269 to the guide plate 269. A downward thrust is applied to make the blocking state of the bottom opening of the storage hopper 261 by the guide plate 269 more stable, and then the gas flows around along the inner arc wall of the guide plate 269, blowing up the metal powder in the storage hopper 261, so that various metal powders are located in the storage hopper 261 and float up, so that various metal powders are fully mixed, and finally the gas passes through the holes of the filter plate 263 and is discharged to the outside of the storage hopper 261, while the metal powder is intercepted by the filter plate 263 and is retained in the storage hopper 261; It should be noted that when the various metal powders are mixed, the valve 45 is closed intermittently, so that the airflow injected into the storage hopper 261 is intermittent, so that the floating metal powders intermittently fall downward, and avoid the continuous airflow pushing the metal powders to continuously adhere to the bottom side of the filter plate 263, resulting in the gas in the storage hopper 261 being unable to be discharged normally; After the above-mentioned metal powders are mixed, the operator twists the gas injection pipe 267 to pull the guide plate 269 upward to release the closed state of the bottom opening of the storage hopper 261, and then the valve 45 is closed. At this time, the gas in the fixed cylinder 41 cannot be discharged, so the pressure in the fixed cylinder 41 continues to increase, and then a thrust is applied to the sealing plate 48 in the opposite direction away from the fixed cylinder 41, so that the sealing plate 48 is separated from the sieve plate 47, and the blocking state of the holes of the sieve plate 47 is released, so that the excess air in the fixed cylinder 41 passes through the holes of the sieve plate 47 and is discharged from the fixed cylinder 41; It should be noted that, during the movement of the sealing plate 48, the guide rod 411 can be synchronously driven to slide in the sieve plate 47, so that the sealing plate 48 moves in a linear track. Therefore, after the sealing plate 48 loses the external force, due to the pull of the third spring 410 on the sealing plate 48, the sealing plate 48 automatically fits with the sieve plate 47, and the holes of the sieve plate 47 are automatically blocked, so that the fixed cylinder 41 is restored to a closed space. After the valve 45 is closed, part of the mixed metal powder in the storage hopper 261 slides downward along the inner wall of the storage hopper 261, passes through the gap between the guide plate 269 and the inner wall of the storage hopper 261, slides into the bottom opening of the storage hopper 261, and falls into the corresponding mold groove 23 from the bottom opening of the storage hopper 261, and the filling of the bottom opening of the storage hopper 261 is completed. Then the valve 45 is opened, and the gas flowing out of the gas injection pipe 267 blows on the guide plate 269. At this time, due to the obstruction of the guide plate 269, the airflow will hardly blow on the metal powder in the bottom opening of the storage hopper 261, and the metal powder near the guide plate 269 and above the guide plate 269 will float up to further perform the mixing process of the metal powder. The airflow blows on the guide plate 269, which can exert a downward thrust on the guide plate 269. Due to the mutual interference between the guide plate 269 and the metal powder in the bottom opening of the storage hopper 261, a pressure can be exerted on the metal powder in the die groove 23, thereby compacting the metal powder in the die groove 23. When the guide plate 269 moves downward, it can drive the push rod 270 to move downward together, and then cooperate with the pad 271 to compress the fourth spring 272. After the metal powder in the die groove 23 is compacted, the valve 45 is closed. Due to the push of the push plate by the fourth spring 272, and at this time, there is less metal powder near the guide plate 269, the guide plate 269 automatically moves up and resets. Then, the metal powder falls and first fills the space at the bottom of the guide plate 269, and then accumulates at the bottom of the storage hopper 261. The guide plate 269 will not move downward to a large extent due to the pressure of the metal powder, which affects the use of the guide plate 269. After the metal powder in the above-mentioned mold groove 23 is filled, the motor 241 starts the driving gear 243 to rotate, and drives the mold to slowly rotate the corresponding angle through the gear ring 242. At this time, due to the mutual interference between the inner arc wall of the positioning groove 244 and the outer arc wall of the ball 247, the ball 247 can be squeezed out of the positioning groove 244. At this time, due to the mutual interference between the ball 247 and the bottom wall of the mounting groove of the base 1 and the push of the second spring 248 on the round rod 246, a supporting force can be applied to the mold 21 from multiple positions of the mold 21, so that the mold 21 keeps a straight state and rotates slowly. After the angle adjustment of the mold 21 is completed, the ball 247 is realigned with the next positioning groove 244. Due to the push of the second spring 248 on the round rod 246, the ball 247 is automatically inserted into the positioning groove 244. At this time, the mutual interference between the ball 247 and the inner wall of the positioning groove 244 can apply a restraining force to the mold 21, so that the mold 21 can stably maintain the adjusted state. During the rotation of the mold 21, the mold groove 23 and the bottom opening of the storage hopper 261 are gradually misaligned. At this time, due to the pressing of the soft belt 266 by the pressing plate 265, the soft belt 266 is closely attached to the inner bottom wall of the annular groove 22. The rotating mold 21 cooperates with the soft belt 266 to scrape the metal powder in the mold groove 23, so that the metal powder with a certain amount in the mold groove 23 is moved out from under the soft belt 266, and the storage hopper 261 is realigned with the next mold groove 23 and the filling process of the metal powder in the mold groove 23 is completed according to the above. During the rotation of the mold 21, the die cavity 23 filled with metal powder can be moved to the bottom of the pressing block 252. At this time, the hydraulic rod 251 is started to push the pressing block 252 into the die cavity 23 to complete the extrusion molding operation of the metal powder in the die cavity 23. According to the above, as the mold 21 rotates, the tool for pressing and forming the metal powder is moved to the bottom of the suction cover 32 in sequence. During the downward movement of the pressing block 252, the suction cover 32 can be pushed downward by the support plate 253 and the first spring 254. After the suction cover 32 and the inner bottom wall of the annular groove 22 collide with each other, as the pressing block 252 continues to move downward, the support plate 253 continues to move downward to compress the first spring 254, and drives the suction pipe 33 to continue to slide downward until the soft pad 37 contacts the tool. At this time, the bottom end opening of the suction pipe 33 is closed, and the amount of gas passing through the suction hole 36 is limited. At this time, the suction pipe 33 is A negative pressure cavity is formed in the mold 23, which exerts an adsorption force on the tool, thereby adsorbing and fixing the tool on the tool. Subsequently, when the pressing block 252 slowly rises from the mold groove 23, the suction pipe 33 can be synchronously driven to slowly move upward through the support plate 253, thereby gradually moving the tool into the suction cover 32. At this time, due to the push of the suction cover 32 by the first spring 254, the suction cover 32 still conflicts with the inner bottom wall of the annular groove 22. After the positioning plate 255 conflicts with the inner wall of the suction cover 32, the upward-moving pressing block 252 can drive the suction cover 32 to move upward and reset synchronously through the support plate 253 and the suction pipe 33. During the downward movement of the pressing block 252, the bottom of the pressing block 252 is first inserted into the die groove 23. At this time, the distance between the suction cover 32 and the inner bottom wall of the annular groove 22 reaches a threshold value. At this time, the gas flow on the inner bottom wall of the annular groove 22 around the die groove 23 continues to flow into the suction cover 32, and the metal powder attached to the top side of the mold 21 is entrained by the airflow and sucked into the fixed cylinder 41. During the process of the bottom side of the suction hood 32 being fitted with the inner bottom wall of the annular groove 22, due to the pressure of the suction hood 32 and the mold 21 on the sealing ring, the ring wall of the soft ring 310 is contractionally deformed and retracted into the annular groove 22, so that the soft ring 310 and the inner bottom wall of the annular groove 22 are closely fitted to block the gap between the suction hood 32 and the inner bottom wall of the annular groove 22, so that a relatively stable closed space is formed in the suction hood 32, and at this time, due to the loss of gas in the suction hood 32, a negative pressure cavity is formed in the suction hood 32, and at this time, the square tube 34 A pressure difference is formed between the exhaust end and the air inlet end of the square tube 34. At this time, the external gas flows into the square tube 34 from the air inlet end of the square tube 34 and flows along the square tube 34. When the gas flows to the position of the guide block 35, the guide block 35 divides the gas and the gas is divided into two streams and discharged from the two exhaust ports of the square tube 34 respectively. The gas discharged from the lower exhaust port of the square tube 34 blows on the inner wall of the die groove 23 and the top side of the tool, blowing up the metal powder attached to the inner wall of the die groove 23 and the top side of the tool, and moves it into the fixed cylinder 41 together with the air flow; During the process of the tool being moved into the suction hood 32, when the outer peripheral wall of the tool moves to the position of another exhaust port of the square tube 34, the airflow discharged from the other exhaust port of the square tube 34 blows on the tool in multiple directions on the outer peripheral side of the tool, blowing off the metal powder on the outer peripheral wall of the tool, and then when the bottom side of the tool moves to another exhaust port of the square tube 34, the airflow discharged from the other exhaust port of the square tube 34 can blow off the metal powder attached to the bottom side of the tool, and at the same time, when the tool is moved out of the mold groove 23, the inertia of the airflow discharged from the bottom end of the square tube 34 causes the airflow to flow along the inner peripheral wall of the mold groove 23 into the mold groove 23, blow the inner bottom wall of the mold groove 23, and blow up the metal powder on the inner bottom wall of the mold groove 23, and finally the airflow carries the metal powder and brings the metal powder into the fixed cylinder 41; The gas flowing out of the suction hood 32 and the metal powder mixed gas are injected into the diverter shell 43 through the exhaust pipe 44, and then flow into the guide ring 46 through the guide pipe 42. Since the amount of gas discharged at the exhaust port of the guide ring 46 is limited, part of the mixed gas flowing into the guide ring 46 is discharged from the exhaust port of the guide ring 46, and the other part of the mixed gas gradually fills the internal space of the guide ring 46, and a high-pressure cavity is formed in the guide ring 46. At this time, due to the pressure difference between the inside and outside of the guide ring 46, the mixed gas is quickly discharged from various positions at the exhaust port of the guide ring 46, and the discharged mixed gas blows on the inner peripheral wall of the mold groove 23, and then the mixed gas diffuses and brings the metal powder particles into full contact with the inner bottom wall of the mold groove 23 At the same time, due to the obstruction of the valve 45, the fixed cylinder 41 and the sieve plate 47, the metal powder is located in the die groove 23 and the fixed cylinder 41 and floats. Finally, through the mutual collision between the metal powder particles in the airflow and the metal particles attached to the inner wall of the die groove 23, the metal powder particles with strong adhesion between the inner wall of the die groove 23 and the inner wall of the die groove 23 are knocked off from the inner wall of the die groove 23, and then the deep cleaning of the die groove 23 is completed. Then, after the valve 45 is opened, the airflow carries the cleaned and collected metal powder and injects it into the storage hopper 261 together, and the recycled metal powder is mixed with the metal powder in the storage hopper 261 to a certain extent, and finally the collection and recycling of the metal powder is completed. According to the above, part of the production operation of the alloy tool can be continuously completed; After the tool is taken out of the mold cavity 23, the operator manually or the robot pushes the suction cover 32 upward to move the tool out of the suction cover 32, and then the tool can be removed by hand or by clamping and pulling with a robot, and placed on the tool placement rack for subsequent sintering operations.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A mixed extrusion device for producing cemented carbide tools, comprising a base (1) mounted on a stage by bolts, characterized in that: An extrusion molding assembly (2) is provided on the base (1), the extrusion molding assembly (2) comprising a die (21) in an annular shape, the bottom of the die (21) being rotatably mounted in a mounting groove of the base (1) via a bearing, an annular groove (22) being provided on the top side of the die (21), a plurality of die grooves (23) being provided in a circular array on the inner bottom wall of the annular groove (22), a driving mechanism (24) being provided at the bottom end of the die (21), a compacting mechanism (25) being provided at the front end of the top side of the die (21), and a feeding mechanism (26) being provided at the right end of the top side of the die (21); A cleaning assembly (3) is provided between the compacting mechanism (25) and the feeding mechanism (26), the cleaning assembly (3) comprising an air pump (31), the air pump (31) passing through the inner hole of the mold (21), and the bottom end of the air pump (31) is fixedly connected to the bottom wall of the mounting groove of the base (1), a suction cover (32) is provided above the mold (21) at a position corresponding to the compacting mechanism (25), a suction pipe (33) is slidably passed through the center position of the top end of the suction cover (32), and the exhaust end of the suction pipe (33) is connected to the exhaust pipe (38) through the connecting pipe (38). The suction cover (32) is connected to the air inlet end of the air pump (31), and a plurality of square tubes (34) in an L-shape are fixedly installed in a circular array on the outer peripheral wall of the bottom end of the suction cover (32). The opposite ends of the square tubes (34) and the bottom end of the square tubes (34) are both opened. A guide block (35) in a triangular cross-sectional shape is fixedly installed at a corner position in the square tube (34), and the top side of the guide block (35) is coplanar with the inner bottom wall of the air inlet of the corresponding square tube (34). A deep cleaning mechanism (4) is provided at the rear end of the top side of the base (1).

2. The mixed extrusion equipment for producing cemented carbide tools according to claim 1, characterized in that: A storage groove (39) in the shape of an annular arrangement is provided on the bottom side of the suction cover (32), and the storage groove (39) is located below the plurality of square tubes (34). A soft ring (310) is provided in the storage groove (39), and the outer peripheral wall of the soft ring (310) is interference fit with the inner wall of the storage groove (39), and the bottom end of the soft ring (310) extends outside the storage groove (39).

3. The mixed extrusion equipment for producing cemented carbide tools according to claim 2, characterized in that: The inner top wall of the suction cover (32) is arranged in an arc shape, a plurality of suction holes (36) are provided in a circular array on the outer peripheral wall of the bottom end of the suction pipe (33), and a soft pad (37) in an annular shape is fixedly mounted on the bottom end of the suction pipe (33).

4. The mixed extrusion equipment for producing cemented carbide tools according to claim 3, characterized in that: The compacting mechanism (25) comprises a hydraulic rod (251) and a support plate (253); the hydraulic rod (251) is arranged above the front die groove (23), and the hydraulic rod (251) is fixedly connected to the base (1) via a support frame and bolts; a pressing block (252) is fixedly mounted on the bottom end of the hydraulic rod (251) via bolts, and a suction cover (32) is arranged at a position on the outer peripheral side of the pressing block (252) corresponding to the die groove (23), and the bottom side of the pressing block (252) is located below the suction cover (32). The top of the suction pipe (33) and the driving rod of the hydraulic rod (251) are respectively fixed through the two ends of the support plate (253); a first spring (254) is wound around the outer peripheral side of the suction pipe (33), and the two ends of the first spring (254) are respectively fixedly connected to the support plate (253) and the suction cover (32); a positioning plate (255) is fixedly sleeved on the outer peripheral side of the bottom end of the suction pipe (33), and the positioning plate (255) is located between the suction hole (36) and the inner wall of the suction cover (32).

5. The mixed extrusion equipment for producing cemented carbide tools according to claim 4, characterized in that: The driving mechanism (24) comprises a gear ring (242); a motor (241) is fixedly mounted on the inner bottom wall of the mounting hole of the base (1), and the motor (241) is located on the outer peripheral side of the air pump (31); the gear ring (242) is fixedly mounted in the bottom opening of the mold (21); a gear (243) is fixedly mounted on the driving end of the motor (241), and the gear (243) is meshingly connected with the gear ring (242).

6. The mixed extrusion equipment for producing cemented carbide tools according to claim 5, characterized in that: A plurality of positioning grooves (244) are provided in a circular array on the inner bottom wall of the mounting groove of the base (1); a placement groove (245) is provided on the bottom side of the mold (21) at a position corresponding to the positioning groove (244); a round rod (246) is slidably installed in the placement groove (245); a ball (247) is rotatably installed at the bottom end of the round rod (246); the bottom end of the ball (247) is inserted into the corresponding positioning groove (244) and contacts the inner wall of the corresponding positioning groove (244); a second spring (248) is provided at the top end of the round rod (246); and two ends of the second spring (248) are fixedly connected to the corresponding round rod (246) and the inner wall of the corresponding placement groove (245), respectively.

7. The mixed extrusion equipment for producing cemented carbide tools according to claim 6, characterized in that: The deep cleaning mechanism (4) comprises a fixed cylinder (41), the fixed cylinder (41) being located above the rear end mold groove (23), and the fixed cylinder (41) being fixedly connected to the base (1) via a bracket and bolts, the top of the fixed cylinder (41) being hemispherical, a plurality of guide tubes (42) being fixedly installed and penetrated in a circular array on the outer peripheral wall of the bottom end of the fixed cylinder (41), a flow diversion shell (43) being fixedly installed at a position corresponding to the flow diversion tube (42) on the outer peripheral side of the fixed cylinder (41), and the interior of the air inlet of the flow diversion tube (42) being communicated with the interior of the flow diversion shell (43), The two exhaust ends of the air pump (31) are both connected and equipped with an exhaust pipe (44), and the exhaust end of each exhaust pipe (44) is fixedly installed through the shell wall of the flow-dividing shell (43), the exhaust end of the fixed cylinder (41) is connected and equipped with a valve (45), a guide ring (46) is fixedly installed in the bottom opening of the fixed cylinder (41), and the exhaust end of the guide pipe (42) is fixedly installed through the ring wall of the guide ring (46), the bottom end of the guide ring (46) extends to the outside of the fixed cylinder (41) and is coplanar with the inner bottom wall of the annular groove (22), and the exhaust port at the bottom end of the guide ring (46) is arranged in a flared shape.

8. The mixed extrusion equipment for producing cemented carbide tools according to claim 7, characterized in that: Two sieve plates (47) are relatively fixedly installed and penetrated on the outer peripheral wall of the top of the fixed cylinder (41); two sealing plates (48) are relatively installed on the outer peripheral side of the top of the fixed cylinder (41), and the sealing plates (48) are in contact with the corresponding sieve plates (47) and the outer wall of the fixed cylinder (41); two groups of circular grooves (49) are relatively opened on the outer wall of the fixed cylinder (41), and each group of circular grooves (49) is arranged in a circular array on the outer peripheral side of the corresponding sieve plate (47); a third spring (410) is arranged in the circular groove (49), and the two ends of the third spring (410) are respectively fixedly connected to the corresponding sealing plate (48) and the inner wall of the corresponding circular groove (49); a guide rod (411) is slidably installed and penetrated at the center position of the sieve plate (47), and the guide rod (411) is fixedly connected to the corresponding sealing plate (48).

9. The mixed extrusion equipment for producing cemented carbide tools according to claim 8, characterized in that: The feeding mechanism (26) comprises a storage hopper (261), a sealing cover (262) is threadedly installed through the front end of the top side of the storage hopper (261), a filter plate (263) is fixedly installed through the center position of the top side of the storage hopper (261), the bottom end opening of the storage hopper (261) is located above the right end mold groove (23), and the storage hopper (261) is fixedly connected to the base (1) through a mounting plate and bolts, and the bottom end of the storage hopper (261) and the bottom end of the fixing cylinder (41) are jointly fixedly sleeved with A pressing plate (265) is provided, and the outer peripheral wall of the pressing plate (265) contacts the inner wall of the annular groove (22); a soft belt (266) is fixedly mounted on the bottom side of the pressing plate (265), the bottom side of the fixing cylinder (41) and the bottom side of the storage hopper (261), and the soft belt (266) contacts the inner wall of the annular groove (22); the cross-section shapes of the two through holes on the soft belt (266) are respectively the same as the cross-section shapes of the bottom opening of the fixing cylinder (41) and the cross-section shapes of the bottom opening of the storage hopper (261).

10. The mixed extrusion equipment for producing cemented carbide tools according to claim 9, characterized in that: An air injection pipe (267) is threadedly installed through the center of the filter plate (263), and the air inlet end of the air injection pipe (267) is connected to the exhaust end of the valve (45) through a soft pipe (268). A guide plate (269) is provided below the air injection pipe (267), and the outer peripheral wall of the guide plate (269) is in contact with the inner wall of the discharge port of the storage hopper (261). The guide plate (269) is in the shape of an arc plate that is tilted from the center to the surroundings. The middle arc surface of the top side of the guide plate (269) is A push rod (270) is fixedly installed at the center position, and the top end of the push rod (270) is inserted into the bottom opening of the gas injection tube (267), the outer peripheral side sliding sleeve of the push rod (270) is provided with a pad (271), and the pad (271) is fixedly connected to the inner wall of the bottom opening of the gas injection tube (267) through a connecting strip, and a fourth spring (272) is wound around the outer peripheral side of the top of the push rod (270), and the two ends of the fourth spring (272) are respectively fixedly connected to the pad (271) and the top of the push rod (270).

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