A die casting mold suitable for ultra-deep radiator die casting

Abstract

A die-casting mold suitable for die-casting of ultra-deep radiators, comprising a lower die mechanism and an upper die mechanism. The upper die mechanism comprises an upper die plate and an upper ejector assembly. The upper ejector assembly comprises a cover plate, an upper guide shaft, an upper ejector plate, an upper ejector, a reset shaft, and a spring. The upper ejector plate is evenly provided with spring placement grooves, one end of the upper ejector is connected to the upper ejector plate, and the other end moves through the upper die plate to abut against the heat sink fins, one end of the reset shaft is connected to the upper ejector plate, and the other end moves through the upper die plate to abut against the lower die mechanism and the length of the reset shaft is greater than that of the upper ejector, and the spring is arranged in the spring placement groove. The spring will always push the upper ejector plate in the direction of the lower die mechanism, so that the upper ejector plate drives the upper ejector to be ejected, and also applies an ejection force at the position of the heat sink fins, so that the heat sink fins are not easily adhered to the molding grooves, which is convenient for demoulding.

Description

Technical Field

[0001] The invention relates to the technical field of molding dies, and in particular to a die-casting die suitable for die-casting of ultra-deep radiators. Background Art

[0002] The molding die is a mold made in proportion to the shape and structure of the real object, and is a tool that uses pressing or pouring to make the material into a certain shape. The principle is to add the plastic raw material into the preheated feeding chamber, and then apply pressure to the pressure column. The plastic melts under high temperature and high pressure, and enters the cavity through the pouring system of the mold, and gradually hardens to form a die casting 100. The die casting 100 is a heat sink and has a plurality of heat dissipation fins 110 arranged at intervals. The die-casting molds in the prior art generally perform ejection, such as the die-casting mold structure disclosed in Patent No. CN201820259263.8, wherein the die-casting mold structure comprises a front template 1, a first rear template 2, a second rear template 3, a first ejector plate 4, a second ejector plate 5 and a bottom plate 6 arranged in sequence, a first mold core for molding products is provided between the front template and the first rear template, and a second mold core for slag discharge is provided between the first rear template and the second rear template; a first ejector plate is provided with a first ejector pin 41, and a second ejector pin 51 is provided on the second ejector plate. When discharging the material, the oil cylinder 7 drives the first ejector plate 4 to move forward, and the first ejector pin 41 on the first ejector plate 4 ejects the product 11 formed in the first mold core of the first rear template 2. However, it is not suitable for heat sinks with very deep die-cast fins. Since the heat sink fins 110 are very deep and due to the principle of thermal expansion and contraction, when the mold is opened, the heat sink fins 110 are easily adhered to the upper mold and can only be ejected from the bottom by the ejector pin, making it difficult to discharge the material and easily causing a certain degree of damage and deformation to the die-casting 100. Summary of the invention

[0003] In view of this, the present invention provides a die-casting mold suitable for die-casting of ultra-deep radiators to solve the above technical problems.

[0004] A die-casting mold suitable for die-casting of ultra-deep radiators, the die-casting mold suitable for die-casting of ultra-deep radiators is used to cast materials into die-castings, the die-castings are radiators and have multiple heat dissipation fins arranged at intervals. The die-casting mold suitable for die-casting of ultra-deep radiators includes a lower die mechanism and an upper die mechanism arranged on the lower die mechanism. The upper die mechanism includes an upper mold plate arranged on the lower mold mechanism, and an upper ejector assembly arranged on the upper mold plate. The upper mold plate is provided with a mounting groove for arranging the upper ejector assembly, and the upper ejector assembly includes a cover plate covering the opening of the mounting groove, four upper guide shafts passing through the cover plate, an upper ejector plate slidably arranged on the upper guide shaft, a plurality of upper ejectors arranged on the upper ejector plate, four reset shafts arranged on the upper ejector plate, and a plurality of springs arranged between the upper ejector plate and the cover plate. The upper guide shaft passes through the upper ejector plate and its two ends are respectively inserted into the cover plate and the upper mold plate. The upper ejector plate is evenly provided with a plurality of spring placement grooves for placing the spring on the end surface facing the cover plate. One end of the upper ejector is connected to the upper ejector plate, and the other end moves through the upper mold plate to abut against the heat dissipation fin. One end of the reset shaft is connected to the upper ejector plate, and the other end moves through the upper mold plate to abut against the lower mold mechanism and the penetration length is greater than that of the upper ejector. The spring is arranged in the spring placement groove. In a free state, the spring always pushes the upper ejector plate toward the lower mold mechanism, so that the upper ejector plate can automatically drive the upper ejector to be ejected when the mold is separated. When the mold is closed, the reset shaft first touches the lower mold mechanism and moves under the power of the mold closing, while driving the upper ejector plate to move up and re-compress the spring. The upper ejector plate moves up to drive the upper ejector to retract into the upper mold plate, so that the upper ejector assembly is reset.

[0005] Furthermore, the lower mold mechanism includes a lower mold plate, a molding protrusion disposed on the lower mold plate, four guide holes disposed at four corners of the lower mold plate, a flow channel assembly disposed on the lower mold plate, a slider slidably disposed on the lower mold plate, and an exhaust block disposed on the lower mold plate. The slider is slidably disposed on the lower mold plate and is provided with a drawer block at one end facing the molding protrusion, a plurality of protrusions are arrayed on the exhaust block, and a groove matching the protrusion is disposed on the upper mold mechanism.

[0006] Furthermore, the flow channel assembly includes a guide column arranged on the lower template, a plurality of flow channels arranged on the lower template, and a plurality of discharge flow channels arranged on the lower template, the guide column is provided with a guide groove on the side facing the flow channel, the guide groove is connected with the flow channel, and the discharge flow channel is connected with the exhaust block.

[0007] Furthermore, the die-casting mold suitable for die-casting of ultra-deep radiators also includes an ejector mechanism arranged on the lower mold mechanism, and the ejector mechanism includes two bases arranged at intervals on the lower mold plate, an ejector plate located between the two bases, four reset pins arranged at the four corners of the ejector plate, and multiple ejectors arranged on the ejector plate.

[0008] Further, one end of the reset pin is connected to the ejector plate, and the other end is connected to the lower mold mechanism; one end of the ejector pin is connected to the ejector plate, and the other end is inserted into the lower mold mechanism.

[0009] Furthermore, the upper mold mechanism also includes four guide columns arranged on the four corners of the upper mold plate, a molding groove arranged on the upper mold plate, a pouring port arranged on the upper mold plate, and an inclined sliding rod obliquely inserted on the upper mold plate.

[0010] Furthermore, the molding groove and the molding protrusion are arranged opposite to each other, and after the mold is closed, the molding protrusion and the molding groove are arranged at an interval to form a molding cavity for molding the die-casting part.

[0011] Furthermore, one end of the inclined sliding rod is arranged on the upper mold plate, and the other end is movably inserted on the sliding block, and the sliding block is driven to slide by the power of mold opening.

[0012] Furthermore, a sleeve is sleeved on the upper guide shaft, and the sleeve is located between the upper guide shaft and the upper ejector plate.

[0013] Compared with the prior art, the die-casting mold suitable for ultra-deep radiator die-casting provided by the present invention can automatically eject the die-casting through the upper ejector assembly. Specifically, a plurality of spring placement grooves for placing the springs are evenly arranged on the end surface of the upper ejector plate facing the cover plate. One end of the upper ejector is connected to the upper ejector plate, and the other end moves through the upper template to abut against the heat sink fins. One end of the reset shaft is connected to the upper ejector plate, and the other end moves through the upper template to abut against the lower template, and the penetration length is greater than that of the upper ejector. The spring is arranged in the spring placement groove. When the mold is opened, the spring pushes the upper ejector plate toward the direction of the lower mold mechanism through the elastic restoring force, so that the upper ejector plate can automatically drive the upper ejector to be ejected when the mold is separated, and an ejection force is also applied at the position of the heat sink fins, so that the heat sink fins are not easy to adhere to the molding grooves, which is convenient for demolding. When the mold is closed, the reset shaft will first touch the lower mold plate, and drive the upper ejector plate to move up, re-compress the spring, and the upper ejector plate moving up also drives the upper ejector to retract into the upper mold plate to reset the upper ejector assembly. The whole process is completed automatically without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a die-casting mold suitable for die-casting of ultra-deep radiators provided by the present invention.

[0015] Figure 2 for Figure 1 Exploded structure diagram of a die casting mold suitable for ultra-deep heat sink die casting.

[0016] Figure 3 for Figure 1 A schematic structural diagram of a lower die mechanism of a die-casting mold suitable for die-casting of ultra-deep radiators.

[0017] Figure 4 for Figure 1 Schematic diagram of the exploded structure of the upper mold mechanism of the die casting mold suitable for ultra-deep radiator die casting.

[0018] Figure 5 for Figure 1 A schematic structural diagram of an upper die mechanism of a die-casting mold suitable for die-casting of ultra-deep radiators.

[0019] Figure 6 for Figure 1 A sectional view of an upper die mechanism of a die-casting mold suitable for die-casting of an ultra-deep radiator along an upper guide axis.

[0020] Figure 7 for Figure 1 A sectional view of an upper die mechanism of a die-casting die suitable for die-casting of an ultra-deep radiator along a reset axis.

[0021] Figure 8 for Figure 1 Schematic diagram of the structure of the die-casting part to be die-cast by the die-casting mold suitable for ultra-deep radiator die-casting. DETAILED DESCRIPTION

[0022] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0023] like Figures 1 to 8 As shown, it is a schematic diagram of the structure of the die-casting mold suitable for die-casting of ultra-deep radiators provided by the present invention. The die-casting mold suitable for die-casting of ultra-deep radiators includes a lower mold mechanism 10, a ejector mechanism 20 arranged on the lower mold mechanism 10, and an upper mold mechanism 30 arranged on the lower mold mechanism 10. It can be imagined that the die-casting mold suitable for die-casting of ultra-deep radiators also includes some other functional modules, such as assembly components, installation components, temperature control components, and sealing components, etc., which are technologies well known to those skilled in the art and will not be repeated here.

[0024] First, it should be noted that the die-casting mold suitable for ultra-deep heat sink die-casting is used to cast the material into a die-casting 100. The die-casting 100 is a heat sink and has a plurality of heat sink fins 110 arranged at intervals. It can be imagined that the die-casting 100 itself should be a prior art and will not be described in detail here.

[0025] The lower mold mechanism 10 includes a lower mold plate 11, a molding protrusion 12 arranged on the lower mold plate 11, four guide holes 13 arranged at the four corners of the lower mold plate 11, a runner assembly 14 arranged on the lower mold plate 11, a slider 15 slidably arranged on the lower mold plate 11, and an exhaust block 16 arranged on the lower mold plate 11.

[0026] The molding protrusion 12 is arranged on an end surface of the lower mold plate 11 facing the upper mold mechanism 30. After the mold is closed, the molding protrusion 12 and the molding groove 33 described below are arranged at intervals to form a hollow molding cavity for molding the die casting 100. The structure of the molding cavity is the same as that of the die casting 100. After the die casting solution flows into the molding cavity through the runner assembly 14 and is cooled and hardened, the die casting 100 is formed. The guide hole 13 is used to cooperate with the upper mold mechanism 30 to improve the accuracy and stability of opening and closing the mold.

[0027] The flow channel assembly 14 includes a guide column 141 disposed on the lower template 11, a plurality of flow channels 142 disposed on the lower template 11, and a plurality of discharge flow channels 143 disposed on the lower template 11. The guide column 141 is provided with a guide groove 143 on the side facing the flow channel 142, and the guide groove 143 is connected with the flow channel 142. The guide column 141 and the guide groove 143 are used to uniformly adjust the flow speed of the die-casting solution. The die-casting solution will flow into the flow channel 142 along the guide groove 143, thereby avoiding excessive pressure when the die-casting solution just enters the flow channel 142. The flow channel 142 is connected with the molding cavity and the exhaust block 16, so that the die-casting solution can flow into the molding cavity uniformly. The discharge flow channel 143 is connected with the exhaust block 16, so that excess die-casting solution and air can flow into the exhaust block 16 through the discharge flow channel 143.

[0028] The slider 15 is slidably arranged on the lower mold plate 11, and a draw block 151 is provided at one end facing the molding protrusion 12. One end of the draw block 151 is connected to the slider 15, and the other end is inserted into the molding cavity and is used to form some structures of the die-casting 100, such as through holes, etc.

[0029] The exhaust block 16 is provided with a plurality of protrusions 161 in an array, and the upper mold mechanism 30 is provided with grooves matching the protrusions 161. After the mold is closed, the protrusions 161 are inserted into the grooves and there is a gap, so that air can be discharged from the gap to improve the exhaust effect. At the same time, it can also effectively resist the material solution and avoid the phenomenon of flying materials caused by the material solution rushing out, so as to ensure the safety of molding.

[0030] The ejector mechanism 20 includes two bases 21 spaced apart on the lower mold plate 11 , an ejector plate 22 located between the two bases 21 , four reset pins 23 disposed at four corners of the ejector plate 22 , and a plurality of ejector pins 24 disposed on the ejector plate 22 .

[0031] The base 21 serves as the base of the entire die-casting mold and is used to bear weight. One end of the reset pin 23 is connected to the ejector plate 22, and the other end is connected to the lower mold plate 11, thereby connecting the ejector plate 22 and guiding the moving direction of the ejector plate 22. One end of the ejector 24 is connected to the ejector plate 22, and the other end is inserted into the lower mold plate 11. The ejector 24 is located on the flow channel 142 and the molding protrusion 12, so that the ejector 24 can be driven by the ejector plate 22 to eject the die-casting 100 and the residue in the flow channel to achieve lower ejection.

[0032] The upper mold mechanism 30 includes an upper mold plate 31 arranged on the lower mold plate 11, four guide columns 32 arranged at the four corners of the upper mold plate 31, a molding groove 33 arranged on the upper mold plate 31, a pouring port 34 arranged on the upper mold plate 31, an upper ejector pin assembly 35 arranged on the upper mold plate 31, and an inclined sliding rod 36 obliquely inserted on the upper mold plate 31.

[0033] The upper mold plate 31 is provided with a mounting groove 311 for arranging the upper ejector assembly 35. The guide column 32 is inserted into the guide hole 13, which can improve the stability of the movement of the upper mold mechanism 30 when the mold is closed and improve the accuracy of opening and closing the mold. The molding groove 33 is arranged opposite to the molding protrusion 12, so that the molding cavity is formed after the mold is closed. The guide column 133 is located in the pouring port 34, and the die-casting solution enters from the pouring port 34 and then flows into the flow channel 142 along the guide groove 143.

[0034] The upper ejector assembly 35 includes a cover plate 351 covering the mounting groove 311, four upper guide shafts 352 passing through the cover plate 351, an upper ejector plate 353 slidably arranged on the upper guide shaft 352, a plurality of upper ejectors 354 arranged on the upper ejector plate 353, four reset shafts 355 arranged on the upper ejector plate 353, and a plurality of springs 356 arranged between the upper ejector plate 353 and the cover plate 351.

[0035] The cover plate 351 is fixedly covered at the opening of the mounting groove 311. The upper guide shaft 352 passes through the upper ejector plate 353 and its two ends are respectively inserted into the cover plate 351 and the upper template 31. The central axis of the upper guide shaft 352 is perpendicular to the cover plate 351. The upper guide shaft 352 is used to guide the upper ejector plate 353 to move up and down. In order to enable the upper ejector plate 353 to slide along the upper guide shaft 352, a sleeve 3521 is sleeved on the upper guide shaft 352. The sleeve 3521 is located between the upper guide shaft 352 and the upper ejector plate 353. The sleeve 3521 should be a prior art and will not be described in detail here.

[0036] The upper ejector plate 353 is evenly provided with a plurality of spring placement grooves 3531 for placing the springs 357 on the end surface facing the cover plate 351. One end of the upper ejector pin 354 is connected to the upper ejector plate 353, and the other end movably passes through the upper mold plate 31 to abut against the heat sink fin 110. One end of the reset shaft 355 is connected to the upper ejector plate 353, and the other end movably passes through the upper mold plate 31 to abut against the lower mold plate 11, and the penetration length is greater than that of the upper ejector pin 354. The spring 356 is arranged in the spring placement groove 3531, so that the spring 356 is located between the upper ejector plate 353 and the cover plate 351. The spring 356 pushes the upper ejector plate 353 toward the lower mold mechanism 10 by its own elastic restoring force in a free state, so that the upper ejector plate 353 can automatically drive the upper ejector 354 to be ejected when the mold is separated, and then an ejection force is also applied to the position of the heat sink fin 110 of the die casting 100, so that the heat sink fin 110 is not easy to adhere to the molding groove 33, which is convenient for demolding. When the mold is closed, since the reset shaft 355 and the upper ejector 354 both pass through the upper mold plate 31, but the penetration length of the reset shaft 355 is greater than that of the upper ejector 354, the reset shaft 355 will first touch the lower mold plate 11 when the mold is closed, and retract into the upper mold plate 31 under the power of the mold closing. At the same time, the upper ejector plate 353 is driven to move upward and re-compress the spring 356. The upward movement of the upper ejector plate 353 also drives the upper ejector 354 to retract into the upper template 31, so that the upper ejector assembly 35 is reset without manual operation.

[0037] One end of the inclined slide rod 36 is arranged on the upper mold plate 31, and the other end is movably inserted on the slider 15. When the mold is separated, since the inclined slide rod 36 is inclined, the inclined slide rod 36 will drive the slider 15 to slide under the power of mold opening, thereby pulling out the draw block 151. The side draw mold should be the existing technology and will not be described here.

[0038] Compared with the prior art, the die-casting mold suitable for ultra-deep heat sink die-casting provided by the present invention can automatically eject the die-casting 100 through the upper ejector assembly 35. Specifically, the end surface of the upper ejector plate 353 facing the cover plate 351 is evenly provided with a plurality of spring placement grooves 3531 for placing the springs 357. One end of the upper ejector 354 is connected to the upper ejector plate 353, and the other end movably passes through the upper mold plate 31 to abut against the heat dissipation fins 110. One end of the reset shaft 355 is connected to the upper ejector plate 353, and the other end movably passes through the upper mold plate 31 to abut against the lower mold plate 11 and the penetration length is greater than that of the upper ejector 354. The spring 356 is arranged in the spring placement groove 3531. When the mold is opened, the spring 356 pushes the upper ejector plate 353 toward the lower mold mechanism 10 through elastic restoring force, so that the upper ejector plate 353 can automatically drive the upper ejector 354 to be ejected when the mold is separated, and also exerts an ejection force at the position of the heat sink fin 110, so that the heat sink fin 110 is not easy to adhere to the molding groove 33, which is convenient for demolding. When the mold is closed, the reset shaft 355 will first touch the lower mold plate 11, and drive the upper ejector plate 353 to move up, re-compress the spring 356, and the upper ejector plate 353 moves up and also drives the upper ejector 354 to retract into the upper mold plate 31, so that the upper ejector assembly 35 is reset. The whole process is completed automatically without manual operation.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A die-casting mold suitable for die-casting of ultra-deep radiators, wherein the die-casting mold suitable for die-casting of ultra-deep radiators is used to cast materials into a die-casting part, wherein the die-casting part is a radiator having a plurality of heat dissipation fins arranged at intervals, and wherein: The die-casting mold suitable for die-casting of ultra-deep radiators includes a lower die mechanism, an upper die mechanism arranged on the lower die mechanism, the lower die mechanism includes a lower template, a molding protrusion arranged on the lower template, four guide holes arranged on the four corners of the lower template, a runner assembly arranged on the lower template, a slider slidably arranged on the lower template, and an exhaust block arranged on the lower template, the slider is slidably arranged on the lower template and is provided with a drawer block at one end facing the molding protrusion, a plurality of protrusions are arranged in an array on the exhaust block, the upper die mechanism is provided with grooves matching the protrusions, the upper die mechanism includes an upper template arranged on the lower die mechanism, and an upper ejector assembly arranged on the upper template, the upper template is provided with a mounting groove for arranging the upper ejector assembly, the upper ejector assembly includes a cover plate arranged on the opening of the mounting groove, four upper guide shafts penetrated on the cover plate, an upper ejector plate slidably arranged on the upper guide shaft, a plurality of upper ejectors arranged on the upper ejector plate, four ejectors arranged on the upper ejector plate A reset shaft on the upper part, and a plurality of springs arranged between the upper ejector plate and the cover plate, a sleeve is sleeved on the upper guide shaft, the sleeve is located on the upper guide shaft and the upper ejector plate, the upper guide shaft passes through the upper ejector plate and the two ends are respectively inserted into the cover plate and the upper template, a plurality of spring placement grooves for placing the springs are evenly arranged on the end surface of the upper ejector plate facing the cover plate, one end of the upper ejector is connected to the upper ejector plate, and the other end movably passes through the upper template to abut against the heat dissipation fin, one end of the reset shaft is connected to the upper ejector plate, and the other end The end of the upper mold plate movably passes through the upper mold plate and presses against the lower mold mechanism, and the penetration length is greater than the upper ejector pin. The spring is arranged in the spring placement groove. The spring always pushes the upper ejector pin plate toward the lower mold mechanism in a free state, so that the upper ejector pin plate can automatically drive the upper ejector pin to be ejected when the mold is separated. When the mold is closed, the reset shaft first touches the lower mold mechanism and moves under the power of the mold closing, while driving the upper ejector pin plate to move up and re-compress the spring. The upper ejector pin plate moves up and drives the upper ejector pin to retract into the upper mold plate, so that the upper ejector pin assembly is reset.

2. The die-casting mold suitable for ultra-deep radiator die-casting as claimed in claim 1, characterized in that: The flow channel assembly includes a guide column arranged on the lower template, a plurality of flow channels arranged on the lower template, and a plurality of discharge flow channels arranged on the lower template. The guide column is provided with a guide groove on the side facing the flow channel, the guide groove is connected with the flow channel, and the discharge flow channel is connected with the exhaust block.

3. The die-casting mold suitable for ultra-deep radiator die-casting as claimed in claim 1, characterized in that: The die-casting mold suitable for die-casting of ultra-deep radiators also includes an ejector mechanism arranged on the lower mold mechanism, and the ejector mechanism includes two bases arranged at intervals on the lower mold plate, an ejector plate located between the two bases, four reset pins arranged at the four corners of the ejector plate, and multiple ejectors arranged on the ejector plate.

4. The die-casting mold suitable for die-casting of ultra-deep radiators according to claim 3, characterized in that: One end of the reset pin is connected to the ejector plate, and the other end is connected to the lower mold mechanism; one end of the ejector pin is connected to the ejector plate, and the other end is inserted into the lower mold mechanism.

5. The die-casting mold suitable for die-casting of ultra-deep radiators according to claim 1, characterized in that: The upper mold mechanism also includes four guide columns arranged on the four corners of the upper mold plate, a molding groove arranged on the upper mold plate, a pouring port arranged on the upper mold plate, and an inclined sliding rod obliquely inserted on the upper mold plate.

6. The die-casting mold suitable for die-casting of ultra-deep radiators according to claim 5, characterized in that: The molding groove and the molding protrusion are arranged opposite to each other, and after the mold is closed, the molding protrusion and the molding groove are arranged at an interval to form a molding cavity for molding the die-casting part.

7. The die-casting mold suitable for die-casting of ultra-deep radiators according to claim 5, characterized in that: One end of the inclined sliding rod is arranged on the upper mold plate, and the other end is movably inserted on the sliding block, and the sliding block is driven to slide by the power of mold opening.

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