A hot pressing mold

Abstract

The present invention discloses a hot pressing type mold. A lower mold core is arranged at the center of the upper part of the lower mold frame, a lower mold heating hole is arranged below the lower mold core, a lower mold temperature sensing line hole is arranged on the lower mold core, and a cavity formed by a pipe material mechanism is arranged at the parting surface between the lower mold core and the upper mold core. The cavities formed by the pipe material mechanism are respectively formed by the A-type pipe material mechanism and the B-type pipe material mechanism. The pipe material mechanism includes an upper mold pipe material mechanism and a lower mold pipe material mechanism. The upper mold pipe material mechanism and the lower mold pipe material mechanism cooperate to form a sealed or semi-sealed mold cavity. The present invention can control the raw materials through the pipe material mechanism so that they will not run around during the feeding and softening process, thereby improving production efficiency and product yield.

Description

Technical Field

[0001] The present invention relates to the technical field of production, processing, preparation and molding of composite materials such as thermosetting plastic materials, bakelite powder, powder particle metal materials, graphite and graphene thermal conductive powder particles, and more specifically to a hot pressing mold. Background Art

[0002] At present, the known thermosetting hot pressing molds use a two-plate structure, which can only produce products with simple shapes and no small deep bones. When producing complex products with small deep bones, the mold cannot be filled. When the product is ejected from the mold, it is manually taken out of the mold or the lower mold is taken out and then knocked or other manual methods are used. The production automation is not high, the production efficiency is extremely low, and the product yield is extremely low. It is also impossible to produce molded powder particle metal materials, graphene thermal conductive powder particles and other composite materials.

[0003] The commonly known plastic molds and zinc alloy, aluminum alloy and other types of molds use the method of melting the plastic, zinc alloy, aluminum alloy and other materials by heating first and then injecting them into the mold cavity by screw pressure. It is well known that the current traditional thermosetting plastic materials, bakelite powder, powder particle metal materials, and graphene thermal conductive powder particles and other composite materials cannot be melted and have no fluidity. Therefore, the commonly known plastic molds and zinc alloy, aluminum alloy and other types of molds cannot produce and mold the above materials.

[0004] In summary, the present invention designs a hot pressing mold. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hot pressing mold that can control the raw materials through a material pipe mechanism so that they will not run around during the feeding and softening process, thereby improving production efficiency and product yield.

[0006] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a hot pressing mold, including an upper mold panel, an upper mold frame, a lower mold frame, a mold foot, a ejector plate, a lower mold bottom plate, an upper mold core, a lower mold core, a guide sleeve, a guide column, a reset needle, a lower mold heating hole, a lower mold temperature sensing line hole, an upper mold temperature sensing line hole, an upper mold heating hole, a tube material cavity formed by an A-type tube material mechanism and a tube material cavity formed by a B-type tube material mechanism, an upper mold panel is arranged above the upper mold frame, a guide sleeve is arranged on the side of the upper mold frame, a guide column is slidably fitted in the guide sleeve, an upper mold core is arranged in the middle of the inner side of the upper mold frame, and an upper mold core is arranged above the upper mold core. Mold heating hole, an upper mold core is provided with an upper mold temperature sensing line hole, the bottom of the guide column is connected with the reset return pin, the upper mold frame cooperates with the lower mold frame, the lower mold frame is arranged on the mold foot, and an ejector plate is arranged between the mold foot and the lower mold bottom plate, and the ejector plate is connected with the reset return pin, a lower mold core is arranged at the upper center of the lower mold frame, a lower mold heating hole is arranged below the lower mold core, a lower mold temperature sensing line hole is arranged on the lower mold core, and a cavity formed by a tube material mechanism is arranged at the parting surface between the lower mold core and the upper mold core, and the cavities formed by the tube material mechanism are respectively formed by an A-type tube material mechanism and a B-type tube material mechanism.

[0007] Preferably, the material pipe mechanism comprises an upper mold material pipe mechanism and a lower mold material pipe mechanism, and the upper mold material pipe mechanism and the lower mold material pipe mechanism cooperate to form a sealed or semi-sealed mold cavity.

[0008] Preferably, the sealed or semi-sealed tube cavity is formed before the upper mold contacts the molded material of the lower mold when the upper mold tube mechanism moves downward. Since the raw materials used for molding by the mold are powder or granules, this tube mechanism can be used to control the raw materials so that they will not run around during the feeding and softening process. During the mold molding process, when the upper mold moves downward under the action of pressure, the tube mechanisms of the upper and lower molds will first contact to form a sealed or semi-sealed mold cavity in the mold. In this way, when the upper mold moves downward again, the molded material inside the mold will be squeezed and filled into the mold in the outer ring sealed or semi-sealed state until the small corners of the mold cavity are filled. This ensures that the raw materials processed during mold molding will not overflow to the outside of the mold first and fill the internal cavity of the mold due to the downward movement of the upper mold. Under the downward pressure of the upper mold, the molded raw materials inside the mold cavity fill the mold cavity, and the excess material is discharged outward through the gap between the upper and lower molds. This ensures that the burrs on the edge of the product will not be too thick or too much after the excess material overflows the cavity.

[0009] Preferably, the material pipe mechanism is obtained by directly processing the original mold or by adding an insert to the existing mold and then connecting it.

[0010] Beneficial effects of the present invention:

[0011] 1. The present invention solves the problems that the known thermosetting hot pressing molds can only produce products with simple shapes and no small deep bone positions, and the mold cannot be fully filled when producing complex products with small deep bone positions, and the products are manually taken out of the mold or taken out of the lower mold and then taken out by knocking or other manual methods, the production automation degree is not high, the production efficiency is extremely low, and the product yield is extremely low. The present invention improves the production efficiency and product yield;

[0012] 2. The present invention solves the problems of production, processing, preparation, molding and application of composite materials such as powder particle metal materials and graphene thermal conductive powder particles.

[0013] 3. The present invention solves the problem that known plastic molds and zinc alloy, aluminum alloy and other types of molds cannot be produced by hot pressing to produce the production, processing, preparation, molding and application of traditional thermosetting plastic materials, powder particle metal materials, and composite materials such as graphene thermal conductive powder particles.

[0014] 4. Since the raw materials used for molding by the mold are in powder or granular form, the material pipe mechanism of the present invention can be used to control the raw materials so that they will not run around during the feeding and softening process.

[0015] 5. During the mold forming process, when the upper mold moves downward under the action of pressure, the pipe mechanism of the upper and lower molds will first contact to form a sealed or semi-sealed mold cavity in the mold. In this way, when the upper mold moves downward again, the molded material inside the mold will be squeezed and filled into the mold under the outer ring sealed or semi-sealed state until the small corners of the mold cavity are filled. This ensures that the processed raw materials will not overflow to the outside of the mold and fill the internal cavity of the mold due to the downward pressure of the upper mold during mold forming. Under the downward pressure of the upper mold, after the mold cavity is filled with the molded raw materials inside the mold cavity, the excess material is discharged outward through the gap between the upper and lower molds. This ensures that the burrs on the edge of the product will not be too thick or too much after the excess material overflows the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments;

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 This is the operating principle diagram of the pipe material structure of the present invention;

[0019] Figure 3 It is a parameter schematic diagram of the material pipe mechanism of the present invention;

[0020] Figure 4 It is a three-dimensional schematic diagram of the lower mold pipe material mechanism of the present invention;

[0021] Figure 5 It is a three-dimensional schematic diagram of the upper mold pipe material mechanism of the present invention. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Reference Figure 1-5 The specific implementation adopts the following technical scheme: a hot pressing mold, including an upper mold panel 1, an upper mold frame 2, a lower mold frame 3, a mold foot 4, an ejector plate 5, a lower mold bottom plate 6, an upper mold core 7, a lower mold core 8, a guide sleeve 9, a guide column 10, a reset needle 11, a lower mold heating hole 12, a lower mold temperature sensing line hole 13, an upper mold temperature sensing line hole 14, an upper mold heating hole 15, a pipe cavity 16 formed by an A-type pipe mechanism and a pipe cavity 17 formed by a B-type pipe mechanism, an upper mold panel 1 is arranged above the upper mold frame 2, a guide sleeve 9 is arranged on the side of the upper mold frame, a guide column 10 is slidably fitted in the guide sleeve 9, an upper mold core 7 is arranged in the middle of the inner side of the upper mold frame, and an upper mold heating hole 1 is arranged above the upper mold core 7 5. An upper mold core 7 is provided with an upper mold temperature-sensing line hole 14, the bottom of the guide column 10 is connected to the reset return pin 11, the upper mold frame 2 is matched with the lower mold frame 3, the lower mold frame 3 is arranged on the mold foot 4, and an ejector plate 5 is arranged between the mold foot 4 and the lower mold bottom plate 6, and the ejector plate 5 is connected to the reset return pin 11, a lower mold core 8 is arranged at the upper center of the lower mold frame 3, a lower mold heating hole 12 is arranged below the lower mold core 8, a lower mold temperature-sensing line hole 13 is arranged on the lower mold core 8, and a cavity formed by a pipe material mechanism is arranged at the parting surface between the lower mold core 8 and the upper mold core 7, and the cavities formed by the pipe material mechanism are respectively a pipe material cavity 16 formed by an A-type pipe material mechanism and a pipe material cavity 17 formed by a B-type pipe material mechanism.

[0024] The material pipe mechanism includes an upper mold material pipe mechanism 18 and a lower mold material pipe mechanism 19, and the upper mold material pipe mechanism 18 and the lower mold material pipe mechanism 19 cooperate to form a sealed or semi-sealed mold cavity.

[0025] The sealed or semi-sealed tube cavity is formed before the upper mold contacts the molded material of the lower mold when the upper mold tube mechanism moves downward. Since the raw materials used for molding by the mold are powder or granules, this tube mechanism can be used to control the raw materials so that they will not run around during the feeding and softening process. During the mold molding process, when the upper mold moves downward under the action of pressure, the tube mechanisms of the upper and lower molds will first contact to form a sealed or semi-sealed mold cavity in the mold. In this way, when the upper mold moves downward again, the molded material inside the mold will be squeezed and filled into the mold in the outer ring sealed or semi-sealed state until the small corners of the mold cavity are filled. This ensures that the raw materials processed during mold molding will not overflow to the outside of the mold first and fill the internal cavity of the mold due to the downward movement of the upper mold. Under the downward pressure of the upper mold, the molded raw materials inside the mold cavity fill the mold cavity, and the excess material is discharged outward through the gap between the upper and lower molds. This ensures that the burrs on the edge of the product will not be too thick or too much after the excess material overflows the cavity.

[0026] The product ejection principle of this specific implementation is ejected by the ejector plate or the push plate. The feeding method used by the mold is: various raw materials prepared in advance are poured or loaded into the mold cavity by manual or equipment. There is no feeding system on the traditional conventional plastic mold, zinc alloy, aluminum alloy mold, etc. (including feeding nozzle, runner, etc.)

[0027] The specific embodiment of the mold heating soft material molding method is:

[0028] 1. Add holes or grooves for installing electric heating tubes or electric wires on the upper and lower mold cores or the upper and lower mold bases of the mold. Heat the mold cavity temperature by 30 to 300 degrees by installing electric heating rods or electric heating wires in the holes or grooves to soften the processed material loaded into the mold cavity.

[0029] 2. Make a cooling water channel for the mold on the upper and lower mold cores or the upper and lower mold bases as in conventional plastic molds, zinc alloy molds, and aluminum alloy molds. Connect an oil temperature machine to the water channel to circulate hot oil to heat the mold cavity temperature by 30 to 200 degrees to soften the processed material loaded into the mold cavity.

[0030] 3. Add a heating plate on the upper and lower molding machines of the mold. Heat the mold cavity by heating the heating plate to 30 to 300 degrees to soften the processed material loaded into the mold cavity.

[0031] 4. This mold has an additional pipe mechanism on the parting surface based on the original conventional plastic mold, zinc alloy mold, aluminum alloy mold, and silicone rubber mold. The structure of the pipe mechanism is as follows: Figure 2 and Figure 3As shown, this pipe mechanism is realized in two ways. For the convenience of description, the two pipe mechanisms are divided into type A and type B. The realization methods of type A and type B pipe mechanisms can be divided into two ways, one is to directly process on the original mold, and the other is to add an insert to the original mold and connect it later.

[0032] Technical parameters and structural principles of the material pipe mechanism of this specific implementation method.

[0033] 1. The technical parameters of type A pipe mechanism are as follows: On the parting surface of the mold, a step of 0.1mm-500mm is added to form a pipe mechanism, which is 0.1mm-20mm away from the edge of the product according to different product shapes, so that the inner cavity of the mold forms a higher cavity. The internal volume space of the raised cavity should be larger than the volume space required for the raw material to be formed, and the ejection direction of the inner wall of the pipe mechanism is made into an ejection slope of 0-30 degrees according to different product shapes. The mold clearance of the pipe mechanism of the upper and lower molds is 0.01mm-2mm according to different product shapes.

[0034] 2. The technical parameters of the B-type pipe mechanism are as follows: On the parting surface of the mold, the pipe mechanism is directly raised by 0.1mm-500mm on the edge of the product according to different product shapes, so that the inner cavity of the mold forms a higher cavity. The internal volume space of the raised cavity should be larger than the volume space required for the raw material to be formed. The ejection direction of the inner wall of the pipe mechanism is made into an ejection slope of 0-30 degrees according to different product shapes. The mold clearance of the pipe mechanism of the upper and lower molds is 0.01mm-2mm according to different product shapes.

[0035] 3. The molding principle and function of the AB two-type pipe mechanism: 1): Since the raw materials used for molding are powder or granular, this pipe mechanism can be used to control the raw materials so that they will not run around during the feeding and softening process. 2): When the upper mold moves downward under the action of pressure during mold molding, the AB two-type pipe mechanism of the upper and lower molds will first contact to form a sealed or semi-sealed mold cavity. In this way, when the upper mold moves downward again, the molded material inside the mold will be squeezed and filled into the mold under the outer ring sealing or semi-sealed state until the small corners in the mold cavity are filled. To ensure that the raw materials being processed during mold molding will not overflow to the outside of the mold first due to the downward pressure of the upper mold and fill the internal cavity of the mold. Under the downward pressure of the upper mold, when the cavity is filled with raw materials, the excess material will be discharged outward through the gap between the upper and lower molds. To achieve that the burrs on the edge of the product will not be too thick or too much after the excess material overflows the cavity.

[0036] The mold of this specific embodiment is installed on the processing and forming equipment (this type of processing and forming equipment is usually an up and down moving equipment), and the mold closing and opening actions are realized by the power device on the forming equipment. The mold cavity is heated to the temperature required for processing and forming by the above three heating methods. After the mold is opened, the prepared raw materials to be formed are poured or loaded into the mold cavity, and then the power on the processing and forming equipment completes a series of actions such as mold closing, softening, exhausting, and pressure holding to form and solidify the raw materials in the mold cavity into the required product before the mold is opened. After the mold is opened, the finished product after processing and forming is ejected by the ejection system of the mold.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hot pressing mold, characterized in that: The invention comprises an upper mold panel (1), an upper mold frame (2), a lower mold frame (3), a mold foot (4), a pin plate (5), a lower mold bottom plate (6), an upper mold core (7), a lower mold core (8), a guide sleeve (9), a guide column (10), a reset needle (11), a lower mold heating hole (12), a lower mold temperature sensing line hole (13), an upper mold temperature sensing line hole (14), an upper mold heating hole (15), a pipe cavity (16) formed by an A-type pipe mechanism and a pipe cavity (17) formed by a B-type pipe mechanism. An upper mold panel (1) is arranged above the upper mold frame (2), a guide sleeve (9) is arranged on the side of the upper mold frame, a guide column (10) is slidably fitted in the guide sleeve (9), an upper mold core (7) is arranged in the middle of the inner side of the upper mold frame, and an upper mold heating hole is arranged above the upper mold core (7). (15), an upper mold core (7) is provided with an upper mold temperature sensing wire hole (14), the bottom of the guide column (10) is connected to the reset return pin (11), the upper mold frame (2) and the lower mold frame (3) cooperate, the lower mold frame (3) is arranged on the mold foot (4), a pin plate (5) is arranged between the mold foot (4) and the lower mold bottom plate (6), the pin plate (5) is connected to the reset return pin (11), a lower mold core (8) is arranged at the center of the upper part of the lower mold frame (3), a lower mold heating hole (12) is arranged below the lower mold core (8), a lower mold temperature sensing wire hole (13) is arranged on the lower mold core (8), and a cavity formed by a pipe material mechanism is arranged at the parting surface between the lower mold core (8) and the upper mold core (7), and the cavities formed by the pipe material mechanism are respectively formed by the pipe material mechanism of type A and type B. The material cavity (16) and the B-type material cavity (17) are formed by the material cavity (16) and the B-type material cavity mechanism, the material cavity mechanism includes an upper mold material cavity mechanism (18) and a lower mold material cavity mechanism (19), the upper mold material cavity mechanism (18) and the lower mold material cavity mechanism (19) cooperate to form a sealed or semi-sealed mold cavity, and the sealed or semi-sealed material cavity portion is formed before the upper mold contacts the molded material of the lower mold when the upper mold material cavity mechanism moves downward and presses down. Since the raw material used for molding by the mold is in powder or granular form, this material cavity mechanism can be used to control the raw material so that it will not run around during the process of feeding and softening the material; during the mold molding process, when the upper mold moves downward under the action of pressure, the material cavity mechanisms of the upper and lower molds will first contact each other to form a sealed or semi-sealed cavity in the mold. The mold cavity, when the upper mold moves downward again, the molded material inside the mold will be squeezed and filled into the mold in the state of outer ring sealing or semi-sealing, until the small corners of the mold cavity are filled; to ensure that the processed raw materials will not overflow to the outside of the mold first and fill the mold cavity when the upper mold moves downward; under the downward pressure of the upper mold, after the mold cavity is filled with the molded raw materials inside the mold cavity, the excess material will be discharged outward through the gap between the upper and lower molds, so that the burrs on the edge of the product after the excess material overflows the cavity will not be too thick or too much; the technical parameters of the A-type pipe mechanism are as follows: on the parting surface of the mold, according to different product shapes, the height of 0.1mm-20mm away from the edge of the product is increased by 0.The 1mm-500mm step is made into a pipe mechanism, so that the inner cavity of the mold forms a higher cavity; the internal volume space of the heightened cavity is larger than the volume space required for the raw material to be formed, and the ejection direction of the inner wall of the pipe mechanism is made into an ejection slope of 0-30 degrees according to different product shapes; the mold clearance of the pipe mechanism of the upper and lower molds is 0.01mm-2mm according to different product shapes. The technical parameters of the B-type pipe mechanism are as follows: on the parting surface of the mold, according to different product shapes, the edge of the product is directly raised by 0.1mm-500mm to form a pipe mechanism, so that the inner cavity of the mold forms a higher cavity; the internal volume space of the heightened cavity is larger than the volume space required for the raw material to be formed, and the ejection direction of the inner wall of the pipe mechanism is made into an ejection slope of 0-30 degrees according to different product shapes; the mold clearance of the pipe mechanism of the upper and lower molds is 0.01mm-2mm according to different product shapes. .

2. A hot pressing mold according to claim 1, characterized in that: The material pipe mechanism is obtained by directly processing the original mold or by connecting the existing mold with an insert.

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