Multi-heat-dissipation assembly for dry powder press

Abstract

The invention relates to the technical field of dry powder presses, in particular to a multi-heat-dissipation assembly for a dry powder press, which comprises a rack, a pressing seat is mounted on the rack, a mold is fixedly connected to the rack, a heat dissipation keeping mechanism is rotatably connected in the mold, and a transmission mechanism is arranged on the inner wall of the heat dissipation keeping mechanism in a sliding fit manner; the water tank is fixedly connected to the rack, the heat dissipation mechanism is fixedly connected to the inner wall of the water tank in a penetrating mode, the hollow mold is arranged, water in the water tank can be pumped into the mold through the water pump, circulating water can efficiently exchange heat with the mold, heat of a mold cavity is rapidly taken away, and thermal expansion deformation of the mold is avoided; the size deviation of a blank is effectively controlled, the occurrence rate of mold sticking and demolding difficulty is reduced, the product percent of pass is improved, meanwhile, a heat dissipation mechanism is matched, rotating fan blades can conduct secondary cooling on water discharged out of a mold, the temperature of cooling liquid can be stabilized within a reasonable interval, and the situation that the heat dissipation effect is attenuated due to water temperature rising is avoided.

Description

Technical Field

[0001] This invention relates to the field of dry powder press technology, and in particular to a multi-stage heat dissipation assembly for a dry powder press. Background Technology

[0002] A dry powder press is a molding device that uses mechanical or hydraulic power to press loose dry powder materials into blanks of specific shapes. It is widely used in ceramics, powder metallurgy, refractory materials, magnetic materials, building materials and other fields. Its core advantage is that it can achieve dense molding of materials without the need for binders (or only a small amount), ensuring the strength and dimensional accuracy of the blanks.

[0003] The prior art publication CN216938316U discloses a dry powder hydraulic press with an oil cooling mechanism for salt core production. In this technology, the oil first enters the inner cavity of a serpentine tube, where a finned radiator performs heat exchange, transferring heat to the surface of the finned radiator to increase the contact area with air. Then, the operation of a cooling fan accelerates the airflow within the cooling chamber, carrying away the heat from the surface of the finned radiator, thereby cooling the oil inside the serpentine tube. The cooled oil returns to the hydraulic tank and then re-enters the filter box. A filter screen is installed at the top of the filter box to filter impurities in the oil. When the filter screen becomes clogged, the rotation of the drive motor drives the rotation of the lead screw, which in turn moves the sleeve. The movement of the sleeve moves the unclogging needle array along the inner wall of the filter box, causing the top of the unclogging needle array to contact the bottom of the filter screen, thus clearing the clog.

[0004] During the dry powder pressing process, the extrusion friction between the press head and the mold cavity and the material, as well as the internal friction between the material particles, continuously generate heat, which accumulates with continuous pressing operations. Existing technologies only address heat dissipation for the hydraulic oil, without cooling the mold and press head. This leads to thermal expansion of the mold cavity and thermal deformation of the press head, causing deviations in the fit clearance between the two. Consequently, the pressed salt core blanks exhibit dimensional errors, uneven wall thickness, and even problems such as blank sticking to the mold and difficulty in demolding.

[0005] In summary, the existing technology lacks a technology for automatic heat dissipation for the press head and mold in dry powder presses. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a multi-stage heat dissipation component for a dry powder press.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a multi-stage heat dissipation component for a dry powder press, comprising a frame, a pressure seat mounted on the frame, a mold fixedly connected to the frame, a heat dissipation holding mechanism rotatably connected inside the mold, a transmission mechanism slidably fitted on the inner wall of the heat dissipation holding mechanism, a water tank fixedly connected to the frame, and a heat dissipation mechanism fixedly connected through the inner wall of the water tank.

[0008] Preferably, the pressure seat has a hollow structure, and an inlet pipe and a drain pipe are respectively fixedly connected through the inner walls on both sides of the pressure seat. A water pump seat is fixedly connected through one end of the inlet pipe, and a piston is slidably fitted through the inner wall of the water pump seat. A tension spring is fixedly connected to the inner end of the piston, and the other end of the tension spring is fixedly connected to the inner wall of the water pump seat. The outer end of the piston is in movable contact with the frame.

[0009] Preferably, the outer walls of the drain pipe and the inlet of the pumping seat are slidably fitted with guide sleeves, the other end of the guide sleeve is fixedly connected to the inner wall of the water tank, and the bottom of the pumping seat is fixedly connected with a squeezing rod.

[0010] Preferably, the mold has a hollow structure, and a second drain pipe is fixedly connected to one side of the mold. The other end of the second drain pipe extends into the water tank and is fixedly connected to multiple nozzles.

[0011] Preferably, the heat dissipation and retention mechanism includes a rotating sleeve, which is rotatably connected to the inner wall of the mold. A scraper is fixedly connected to the top of the rotating sleeve, and the scraper is slidably in contact with the inner wall of the mold. A reciprocating screw is rotatably connected to one end of the scraper, and an adjusting wheel is fixedly connected to the top of the reciprocating screw. An annular rack is fixedly connected to the inner wall of the mold, and the adjusting wheel and the annular rack are meshed and driven together.

[0012] Preferably, the outer wall of the reciprocating screw is slidably fitted with a scraper ring, the inner wall of the scraper ring is slidably in contact with the inner wall of the mold, and the other end of the scraper ring is slidably fitted with a scraper plate.

[0013] Preferably, the transmission mechanism includes a movable frame, one end of which is rotatably connected to a transmission rod, the top end of which is slidably engaged with a rotating sleeve, the bottom end of which is fixedly connected to a transmission wheel, the other end of which is movably in contact with an extrusion rod, and two springs are fixedly connected to the movable frame, the other ends of which are fixedly connected to the machine frame.

[0014] Preferably, an exhaust vent is provided on one side of the water tank, and a water pump is fixedly connected to the inner wall of the water tank. The output end of the water pump passes through the inner wall of the water tank and is fixedly connected to the inner wall of the mold.

[0015] Preferably, the heat dissipation mechanism includes a filter tube, which is fixedly connected to the inner wall of the water tank. A motor is fixedly connected to the outer end of the filter tube. The output end of the motor extends to the inner wall of the filter tube and is fixedly connected to a fan blade. A universal joint is fixedly connected to the shaft end of the fan blade. The other end of the universal joint is rotatably connected to the inner wall of the water tank. A gear shaft is fixedly connected to the outer end of the universal joint. The gear shaft is movably meshed with a transmission wheel for transmission.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By setting up a hollow mold, a water pump can draw water from the water tank into the mold. The circulating water can form an efficient heat exchange with the mold, quickly removing the heat from the mold cavity, avoiding thermal expansion and deformation of the mold, effectively controlling the dimensional deviation of the blank, reducing the occurrence of sticking and demolding difficulties, and improving the product qualification rate. At the same time, in conjunction with the heat dissipation mechanism, the rotating fan blades can cool the water discharged from the mold a second time, which can keep the coolant temperature stable within a reasonable range and avoid the heat dissipation effect from decreasing due to the increase in water temperature. Meanwhile, the closed circulation can reduce the evaporation loss of coolant, reduce the frequency of water replenishment and the cost of use. By setting a hollow pressure seat, the piston moves automatically when the pressure seat moves up and down to pressurize the dry powder. This automatically completes the process of water tank intake and water circulation for heat dissipation within the pressure seat, directly cooling the pressure seat body that generates heat due to friction during the pressing process, eliminating the need for an additional circulating water pump. At the same time, the intermittent transmission mechanism of the up-and-down movement of the extrusion rod drives the heat dissipation and maintenance mechanism. Compared with traditional heat dissipation systems that require motors and water pumps, this completely eliminates the energy consumption of additional power devices, meeting the energy-saving and consumption-reducing design requirements of the equipment and reducing electricity costs in the production process. By setting a heat dissipation retention mechanism inside the mold, the pressing action of the pressure seat moving downward can synchronously drive the transmission mechanism to transmit the power of the heat dissipation mechanism to the heat dissipation retention mechanism. When working, this mechanism can not only assist the water circulation of the mold for heat dissipation, but also actively clean the inner wall of the mold, removing scale, impurities or deposits that have accumulated in the water channel over a long period of time. This avoids the problem of heat exchange efficiency decay caused by scale buildup on the inner wall of traditional hollow mold seats, ensuring that the heat dissipation effect will not decrease with the extension of use time and maintaining the stability of the mold temperature. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-heat dissipation assembly for a dry powder press according to the present invention; Figure 2 This is a partial cross-sectional view of the overall structure of a multi-heat dissipation assembly for a dry powder press according to the present invention. Figure 3 This is a partial cross-sectional schematic diagram of the pressure seat structure of a multi-heat dissipation component for a dry powder press according to the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the mold structure of a multi-heat dissipation component for a dry powder press according to the present invention; Figure 5 This is a schematic diagram of the heat dissipation retention mechanism of a multi-heat dissipation component for a dry powder press according to the present invention; Figure 6 This is a schematic diagram of the transmission mechanism structure of a multi-heat dissipation component for a dry powder press according to the present invention. Figure 7 This is a cross-sectional schematic diagram of the water tank structure of a multi-heat dissipation component for a dry powder press according to the present invention; Figure 8 This is a schematic diagram of the heat dissipation mechanism of a multi-heat dissipation component for a dry powder press according to the present invention.

[0018] The diagram shows: 1. Frame; 2. Pressure base; 3. Mold; 4. Heat dissipation and retention mechanism; 5. Transmission mechanism; 6. Water tank; 7. Heat dissipation mechanism; 201. Inlet pipe 1; 202. Drain pipe 1; 203. Pump base; 204. Piston; 205. Tension spring; 206. Guide sleeve; 207. Extrusion rod; 301. Drain pipe 2; 302. Ring rack; 401. Rotating sleeve; 402. Scraper; 403. Reciprocating screw; 404. Adjusting wheel; 405. Scraper ring; 501. Movable frame; 502. Transmission rod; 503. Transmission wheel; 504. Spring; 601. Exhaust vent; 602. Water pump; 701. Filter pipe; 702. Motor; 703. Fan blade; 704. Universal joint; 705. Gear shaft. Detailed Implementation

[0019] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] like Figures 1-8 The multi-stage heat dissipation assembly for a dry powder press shown includes a frame 1, a pressure seat 2 mounted on the frame 1, a mold 3 fixedly connected to the frame 1, a heat dissipation holding mechanism 4 rotatably connected inside the mold 3, a transmission mechanism 5 slidably fitted on the inner wall of the heat dissipation holding mechanism 4, a water tank 6 fixedly connected to the frame 1, and a heat dissipation mechanism 7 fixedly connected through the inner wall of the water tank 6.

[0021] like Figure 3As shown, the pressure base 2 has a hollow structure. A water inlet pipe 201 and a drain pipe 202 are respectively fixedly connected through the inner walls of both sides of the pressure base 2. A water pumping base 203 is fixedly connected through one end of the water inlet pipe 201. A piston 204 is slidably fitted through the inner wall of the water pumping base 203. A tension spring 205 is fixedly connected to the inner end of the piston 204. The other end of the tension spring 205 is fixedly connected to the inner wall of the water pumping base 203. The outer end of the piston 204 is in contact with the frame 1.

[0022] Piston 204 adopts a rubber + metal skeleton composite structure. The rubber material is nitrile rubber, which has excellent oil resistance and wear resistance. The metal skeleton ensures the structural strength of piston 204. The tension spring 205 is a stainless steel compression spring, which can ensure that piston 204 can quickly return to its original position when not under compression.

[0023] Both the outer walls of the inlet ends of the drain pipe 202 and the pump seat 203 are fitted with guide sleeves 206 that slide together. The other end of the guide sleeve 206 is fixedly connected to the inner wall of the water tank 6. A squeezing rod 207 is fixedly connected to the bottom of the pump seat 203. One-way valves are installed at the inlet end of the pump seat 203 and in the inner wall of the inlet pipe 201.

[0024] The guide sleeve 206 is made of copper alloy, which can enable smooth sliding when the pressure seat 2 moves up and down, while ensuring sealing performance; the extrusion rod 207 is made of 45 steel and is welded to the water pump seat 203, which has high connection strength; the one-way valve is made of stainless steel, which has good sealing performance and can ensure one-way flow of coolant, avoid backflow, and improve water circulation efficiency; the two one-way valves control the water inlet and outlet directions of the water pump seat 203 respectively.

[0025] like Figure 4 As shown, the mold 3 has a hollow structure. A drain pipe 301 is fixedly connected through one side of the mold 3. The other end of the drain pipe 301 extends into the water tank 6 and is fixedly connected to multiple nozzles.

[0026] The drain pipe 2, 301, is made of stainless steel, which ensures that the coolant is discharged quickly. The nozzle can evenly spray the coolant discharged from the mold 3 into the water tank 6, increasing the contact area between the coolant and the air and assisting in heat dissipation.

[0027] By setting a hollow mold 3, water from the water tank 6 can be pumped into the mold 3 using a water pump 602. The circulating water can form an efficient heat exchange with the mold 3, quickly removing the heat from the mold cavity, preventing thermal expansion and deformation of the mold 3, effectively controlling the dimensional deviation of the blank, reducing the occurrence of sticking and demolding difficulties, and improving the product qualification rate. At the same time, in conjunction with the heat dissipation mechanism 7, the rotating fan blades 703 can perform secondary cooling on the water discharged from the mold 3, which can stabilize the coolant temperature within a reasonable range and prevent the heat dissipation effect from decreasing due to the increase in water temperature. Meanwhile, the closed circulation can reduce the evaporation loss of coolant, reduce the frequency of water replenishment and the cost of use.

[0028] like Figure 5 As shown, the heat dissipation and heat preservation mechanism 4 includes a rotating sleeve 401, which is rotatably connected to the inner wall of the mold 3. A scraper 402 is fixedly connected to the top of the rotating sleeve 401. The scraper 402 is slidably in contact with the inner wall of the mold 3. A reciprocating screw 403 is rotatably connected to one end of the scraper 402. An adjusting wheel 404 is fixedly connected to the top of the reciprocating screw 403. An annular rack 302 is fixedly connected to the inner wall of the mold 3. The adjusting wheel 404 and the annular rack 302 are meshed and driven together.

[0029] The scraper 402 is made of polyurethane and can effectively scrape away scale and impurities from the inner wall of the mold 3.

[0030] A scraper ring 405 is slidably fitted on the outer wall of the reciprocating screw 403. The inner wall of the scraper ring 405 is slidably in contact with the inner wall of the mold 3. The other end of the scraper ring 405 is slidably fitted with the scraper 402.

[0031] The scraper ring 405 is made of stainless steel and has a rubber scraper strip on its inner wall. The rubber scraper strip fits tightly against the inner wall of the mold 3 to improve scraping efficiency.

[0032] like Figure 6 As shown, the transmission mechanism 5 includes a movable frame 501. A transmission rod 502 is rotatably connected to one end of the movable frame 501. The top end of the transmission rod 502 is slidably engaged with the rotating sleeve 401. A transmission wheel 503 is fixedly connected to the bottom end of the transmission rod 502. The other end of the movable frame 501 is in movable contact with the pressing rod 207. Two springs 504 are fixedly connected to the movable frame 501. The other end of the springs 504 is fixedly connected to the frame 1.

[0033] The movable frame 501 is made of aluminum alloy, which can reduce the driving load of the pressing rod 207; the transmission rod 502 is made of stainless steel, which allows the rotating sleeve 401 to slide along the axis of the transmission rod 502 while the transmission rod 502 drives the rotating sleeve 401 to rotate synchronously; the transmission wheel 503 adopts a gear structure, and the tooth surface is carburized and quenched, which has excellent wear resistance; the spring 504 is a stainless steel tension spring, which can ensure that the movable frame 501 can quickly return to its original position when not under compression.

[0034] like Figure 7 As shown, a vent 601 is provided on one side of the water tank 6, and a water pump 602 is fixedly connected to the inner wall of the water tank 6. The output end of the water pump 602 passes through the inner wall of the water tank 6 and is fixedly connected to the inner wall of the mold 3.

[0035] The exhaust vent 601 ensures that the hot air generated by the heat dissipation mechanism 7 is quickly discharged, thereby improving heat dissipation efficiency.

[0036] like Figure 8 As shown, the heat dissipation mechanism 7 includes a filter tube 701, which is fixedly connected to the inner wall of the water tank 6. A motor 702 is fixedly connected to the outer end of the filter tube 701. The output end of the motor 702 extends to the inner wall of the filter tube 701 and is fixedly connected to a fan blade 703. A universal joint 704 is fixedly connected to the shaft end of the fan blade 703. The other end of the universal joint 704 is rotatably connected to the inner wall of the water tank 6. A gear shaft 705 is fixedly connected to the outer end of the universal joint 704. The gear shaft 705 is movably meshed with the transmission wheel 503 for transmission.

[0037] The filter tube 701 is equipped with a stainless steel filter screen, which can filter impurities in the air; the motor 702 is a three-phase asynchronous motor, and the fan blade 703 is made of aluminum alloy. After dynamic balancing test, it runs smoothly without vibration.

[0038] Working principle: When the dry powder press is started, the equipment control system performs a self-check, checking the operating status of components such as water pump 602 and motor 702; sufficient coolant (pure water or special heat transfer fluid) is injected into water tank 6 to ensure that the coolant level is higher than the inlet of water pump 602; motor 702 and water pump 602 are started, motor 702 drives fan blade 703 to rotate, and fan blade 703 drives gear shaft 705 to rotate through universal joint 704; water pump 602 draws the coolant in water tank 6 into the hollow cavity of mold 3, and the water circulation cooling of mold 3 begins.

[0039] When the dry powder press is working, the press seat 2 moves downward under the drive mechanism to press and shape the dry powder in the mold 3. During the downward movement of the press seat 2, the water pump seat 203 on one side moves downward as well. The outer end of the piston 204 is released from contact with the frame 1. Under the action of the tension spring 205, the piston 204 moves outward from the water pump seat 203, and a negative pressure is generated in the water pump seat 203. The coolant in the water tank 6 enters the water pump seat 203 through the guide sleeve 206 and the one-way valve at the input end of the water pump seat 203 to prepare for the next water circulation heat dissipation.

[0040] During the downward movement of the pressure seat 2, the squeezing rod 207 at the bottom of the water pump seat 203 moves downward synchronously. The squeezing rod 207 squeezes one end of the movable frame 501, causing the movable frame 501 to rotate around the transmission rod 502, and the spring 504 is stretched. The movable frame 501 drives the transmission rod 502 to move downward. The transmission wheel 503 at the bottom of the transmission rod 502 meshes with the gear shaft 705 of the heat dissipation mechanism 7. The gear shaft 705 drives the transmission wheel 503 to rotate. The transmission wheel 503 drives the rotating sleeve 401 of the heat dissipation holding mechanism 4 to rotate through the transmission rod 502. The rotating sleeve 401 drives the scraper 402 to rotate on the inner wall of the mold 3, scraping away the scale and impurities on the inner wall of the mold 3. At the same time, the adjusting wheel 404 on the scraper 402 meshes with the annular rack 302 on the inner wall of the mold 3, driving the reciprocating screw 403 to rotate. The reciprocating screw 403 drives the scraper ring 405 to slide back and forth along the inner wall of the mold 3, further cleaning the inner wall of the mold 3 and ensuring the heat exchange efficiency of the mold 3.

[0041] After the pressure seat 2 completes pressurization, it moves upward and resets under the drive mechanism; the water pump seat 203 moves upward with the pressure seat 2, the piston 204 contacts the frame 1 and moves downward, the coolant in the water pump seat 203 is squeezed and enters the hollow cavity of the pressure seat 2 through the water inlet pipe 201, the coolant exchanges heat with the body of the pressure seat 2, and takes away the heat generated by the friction of the pressure seat 2; the coolant after heat exchange flows back to the water tank 6 through the drain pipe 202 and the guide sleeve 206, completing one water circulation cooling of the pressure seat 2; at the same time, the squeezing rod 207 moves upward with the pressure seat 2, the squeezing force on the movable frame 501 disappears, and it resets under the action of the spring 504, the transmission wheel 503 disengages from the gear shaft 705, and the heat dissipation holding mechanism 4 stops working.

[0042] Then, the water pump 602 continuously pumps the coolant from the water tank 6 into the hollow cavity of the mold 3. The coolant flows in the annular guide channel of the mold 3, exchanges heat with the mold 3, and removes the heat from the cavity of the mold 3. After heat exchange, the coolant flows through the drain pipe 301 to the nozzle in the water tank 6, and the nozzle sprays the coolant evenly into the water tank 6. At the same time, the motor 702 drives the fan blade 703 to rotate at high speed, generating airflow. The airflow enters the water tank 6 through the filter pipe 701, and performs secondary air cooling on the sprayed coolant. The cooled coolant falls to the bottom of the water tank 6 and continues to participate in the circulation. The filter screen in the filter pipe 701 filters dust in the airflow to prevent contamination of the coolant.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A multi-stage heat dissipation assembly for a dry powder press, comprising a frame (1), characterized in that: A pressure seat (2) is installed on the frame (1). A mold (3) is fixedly connected to the frame (1). A heat dissipation and holding mechanism (4) is rotatably connected inside the mold (3). A transmission mechanism (5) is slidably fitted on the inner wall of the heat dissipation and holding mechanism (4). A water tank (6) is fixedly connected to the frame (1). A heat dissipation mechanism (7) is fixedly connected through the inner wall of the water tank (6).

2. The multi-stage heat dissipation assembly for a dry powder press according to claim 1, characterized in that: The pressure seat (2) is hollow. A water inlet pipe (201) and a drain pipe (202) are fixedly connected through the inner walls of both sides of the pressure seat (2). A water pump seat (203) is fixedly connected through one end of the water inlet pipe (201). A piston (204) is slidably connected through the inner wall of the water pump seat (203). A tension spring (205) is fixedly connected to the inner end of the piston (204). The other end of the tension spring (205) is fixedly connected to the inner wall of the water pump seat (203). The outer end of the piston (204) is in contact with the frame (1).

3. A multi-stage heat dissipation assembly for a dry powder press according to claim 2, characterized in that: The outer wall of the inlet end of the drain pipe (202) and the pump seat (203) is provided with a guide sleeve (206) that slides in fit. The other end of the guide sleeve (206) is fixedly connected to the inner wall of the water tank (6). The bottom end of the pump seat (203) is fixedly connected with a squeezing rod (207).

4. A multi-stage heat dissipation assembly for a dry powder press according to claim 1, characterized in that: The mold (3) is hollow. A drain pipe (301) is fixedly connected to one side of the mold (3). The other end of the drain pipe (301) extends into the water tank (6) and is fixedly connected to multiple nozzles.

5. A multi-stage heat dissipation assembly for a dry powder press according to claim 1, characterized in that: The heat dissipation and retention mechanism (4) includes a rotating sleeve (401), which is rotatably connected to the inner wall of the mold (3). A scraper (402) is fixedly connected to the top of the rotating sleeve (401), and the scraper (402) is slidably contacted with the inner wall of the mold (3). A reciprocating screw (403) is rotatably connected to one end of the scraper (402), and an adjusting wheel (404) is fixedly connected to the top of the reciprocating screw (403). An annular rack (302) is fixedly connected to the inner wall of the mold (3), and the adjusting wheel (404) and the annular rack (302) are meshed and driven together.

6. A multi-stage heat dissipation assembly for a dry powder press according to claim 5, characterized in that: The reciprocating screw (403) is provided with a scraper ring (405) in sliding fit on the outer wall. The inner wall of the scraper ring (405) is in sliding contact with the inner wall of the mold (3). The other end of the scraper ring (405) is in sliding fit with the scraper plate (402).

7. A multi-stage heat dissipation assembly for a dry powder press according to claim 1, characterized in that: The transmission mechanism (5) includes a movable frame (501), one end of which is rotatably connected to a transmission rod (502). The top end of the transmission rod (502) is slidably engaged with a rotating sleeve (401). The bottom end of the transmission rod (502) is fixedly connected to a transmission wheel (503). The other end of the movable frame (501) is in movable contact with a pressing rod (207). Two springs (504) are fixedly connected to the movable frame (501), and the other end of the springs (504) is fixedly connected to the frame (1).

8. A multi-stage heat dissipation assembly for a dry powder press according to claim 1, characterized in that: The water tank (6) has an exhaust vent (601) on one side. A water pump (602) is fixedly connected to the inner wall of the water tank (6). The output end of the water pump (602) passes through the inner wall of the water tank (6) and is fixedly connected to the inner wall of the mold (3).

9. A multi-stage heat dissipation assembly for a dry powder press according to claim 1, characterized in that: The heat dissipation mechanism (7) includes a filter tube (701), which is fixedly connected to the inner wall of the water tank (6). A motor (702) is fixedly connected to the outer end of the filter tube (701). The output end of the motor (702) extends to the inner wall of the filter tube (701) and is fixedly connected to a fan blade (703). A universal joint (704) is fixedly connected to the shaft end of the fan blade (703). The other end of the universal joint (704) is rotatably connected to the inner wall of the water tank (6). A gear shaft (705) is fixedly connected to the outer end of the universal joint (704). The gear shaft (705) is movably meshed with the transmission wheel (503) for transmission.

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