Hot pressing die

Abstract

The utility model provides a hot-pressing die, which aims at improving the production efficiency and comprises a plurality of groups of die core assemblies, each group of mold core assembly comprises an upper mold core, a lower mold core, a pushing piece, an elastic piece and a locking piece, wherein the upper mold core is provided with a containing groove and an opening which are communicated with each other; the lower mold core is propped against the upper mold core during mold closing and is used for accommodating a workpiece to be formed; the pushing piece is movably arranged on the upper mold core in a penetrating manner and is provided with a through hole; the lower mold assembly comprises a lower mold body located on the side, away from the upper mold core, of the lower mold core and an abutting piece connected with the lower mold core, the lower mold body bears the lower mold core of one set of mold core assembly and heats the lower mold core, and the abutting piece is used for abutting against the lower mold core to the lower mold body; the upper mold assembly comprises an upper mold body located on the side, away from the lower mold core, of the upper mold core, a limiting piece connected with the upper mold body and a driving piece connected with the upper mold body, the upper mold body supports the upper mold cores of the same mold core assembly and heats the upper mold cores, and the limiting piece is used for being inserted into the opening and stretching into the containing groove.

Description

Technical Field

[0001] This utility model relates to the field of workpiece forming technology, and in particular to a hot pressing mold. Background Technology

[0002] Currently, when using hot press molds to hot press products made of special materials, such as carbon fiber composites, the heating plate in the hot press mold first heats the upper and lower mold cores to a preset high temperature. Then, using the high resistance generated when the upper and lower mold cores close, the product is shaped into a preset shape under high temperature and high pressure. Finally, the hot press mold is cooled to a preset low temperature before it is opened and the product is removed. However, the heating and cooling operations of hot press molds require a long time each time a single product is formed, resulting in low production efficiency. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a hot pressing mold to improve production efficiency.

[0004] This application provides a hot pressing mold, including:

[0005] Multiple sets of mold core assemblies, each set of mold core assemblies including an upper mold core, a lower mold core, a pusher, an elastic member, and a locking member. The upper mold core and the lower mold core are used to abut against each other and receive the workpiece to be formed when the mold is closed, so as to form the workpiece by hot pressing. The upper mold core is provided with a receiving groove and an opening. The receiving groove extends in a direction perpendicular to the mold opening direction. The opening is located on the side of the upper mold core away from the lower mold core and communicates with the receiving groove. The pusher is movably inserted through the upper mold core and extends to the receiving groove. The pusher has a through hole. The two ends of the elastic member elastically abut against the pusher and the groove wall of the receiving groove, respectively. The locking member is connected to the lower mold core. The locking member is used to insert into the through hole and abut against the upper surface of the pusher when the mold is closed, so as to lock the lower mold core to the upper mold core.

[0006] A lower mold assembly includes a lower mold member and a pressing member. The lower mold member is located on the side of the lower mold core opposite to the upper mold core. The lower mold member is used to support the lower mold core of one set of mold core assemblies and to heat the lower mold core. The pressing member is connected to the lower mold core and is used to press the lower mold core against the lower mold member.

[0007] The upper mold assembly includes an upper mold component, a limiting component, and a driving component. The upper mold component is disposed opposite to the lower mold component and located on the side of the upper mold core away from the lower mold core. The upper mold component is used to support the upper mold cores of the same set of mold core assemblies and to heat the upper mold cores. The limiting component is connected to the upper mold component and is used to insert into the opening and extend into the receiving groove. The driving component is connected to the upper mold component and is used to engage the end of the pusher away from the elastic member and drive the pusher to compress the elastic member against the groove wall of the receiving groove, so that the pusher is released from the locking component and engaged with the limiting component.

[0008] When using the aforementioned hot press mold, firstly, multiple sets of mold core assemblies are preheated to a preset temperature by placing them on an external heating device. The upper and lower mold parts are also preheated to the preset temperature. Then, one set of mold core assemblies is placed on the lower mold part. The pressing member presses the lower mold core against the lower mold part. The upper mold part drives the limiting member to insert into the opening and extend into the receiving groove. The driving member and the pushing member engage and drive the pushing member to compress the elastic member against the groove wall of the receiving groove, so that the pushing member is released from the locking member and engaged with the limiting member, thereby locking the upper mold core to the upper mold part and releasing it from the lower mold core. Next, the upper mold part drives the upper mold core away from the lower mold core. Then, the workpiece is placed on the lower mold core. The upper mold part then drives the upper mold core closer to the lower mold core to close the mold. The locking member connected to the lower mold core is inserted into the through-hole. The workpiece is formed into a preset structure under high temperature and high pressure. Finally, the compressed elastic component and driving component drive the pushing component away from the elastic component, so that the locking component abuts against the upper surface of the pushing component to lock the lower mold core to the upper mold core. Then, the mutually locked upper and lower mold cores and the workpiece are placed in an external pressure holding device for pressure holding and cooling operations. Another set of mold core assemblies preheated to a preset temperature is placed in the lower mold to replace the mold core assembly that has completed the hot pressing of the workpiece. By alternately placing the preheated mold core assemblies to the upper and lower mold assemblies, the upper and lower mold assemblies can quickly complete the hot pressing of multiple workpieces, reducing the process steps of the hot pressing mold, realizing continuous and rapid hot pressing of multiple workpieces into a preset structure, and improving production efficiency.

[0009] In some embodiments, the upper mold core includes:

[0010] The mold core body has the aforementioned receiving groove, clearance groove, and clearance hole. The clearance groove corresponds to the opening and is located at the bottom of the receiving groove. The clearance groove is used to receive the end of the limiting member away from the upper mold member. The clearance hole is spaced apart from the clearance groove on the groove wall of the receiving groove. The clearance hole is used to receive the locking member. The mold core body has a protrusion. The protrusion protrudes from the bottom of the receiving groove and is located at the opening of the receiving groove away from the elastic member. The protrusion moves through the pushing member along the mold opening direction and is used to limit the pushing member.

[0011] A cover body is provided on the receiving groove and detachably connected to the mold core body. The cover body is provided with the opening and the communicating hole. The communicating hole communicates with the receiving groove and corresponds to the clearance hole. The communicating hole is used to receive the end of the locking member away from the lower mold core.

[0012] In some embodiments, the actuating element includes:

[0013] A pusher body is slidably disposed in the receiving groove and abuts against the elastic member. The pusher body is provided with the through hole and the mounting hole at intervals. The through hole is adjacent to the elastic member relative to the mounting hole. The through hole is used to receive the locking member. The mounting hole is used to receive the protrusion.

[0014] A connector protrudes from the side of the pusher away from the elastic member, and the connector is used to detachably connect to the drive member.

[0015] In some embodiments, the pusher body has an abutting slope on the side away from the lower mold core. The abutting slope is inclined relative to the direction perpendicular to the mold opening direction. The abutting slope and the mounting hole are located on both sides of the through hole, and the abutting slope is connected to the hole wall of the through hole.

[0016] The locking component includes a support body and a locking body. The support body is connected to the lower mold core. The support body is used to be inserted into the clearance hole and the through hole when the mold is closed. The locking body protrudes from the side of the support body facing the elastic member. The locking body is used to move into the connecting hole and abut against the abutting inclined surface when the mold is closed, driven by the support body.

[0017] In some embodiments, the limiting member includes a main body and a limiting body. The main body is connected to the upper mold member, and the limiting body protrudes from the side of the main body facing the driving member. The limiting body is used to insert into the receiving groove and extend into the clearance groove under the drive of the main body to abut against the lower surface of the pushing member.

[0018] In some embodiments, the outer side of the lower mold core is provided with an extension portion, and the pressing member includes a fixing body and a pressing body. The fixing body is connected to the lower mold core, and the pressing body protrudes from the fixing body on the side facing the lower mold core. The pressing body is used to press the extension portion against the lower mold core.

[0019] In some embodiments, the lower mold assembly further includes:

[0020] A retaining member is disposed at a distance from the pressing member on the lower mold member, and together with the pressing member, forms a storage space for accommodating the lower mold core. The retaining member is used to abut the lower mold core within the storage space.

[0021] In some embodiments, the drive includes:

[0022] The support body is connected to the side of the upper mold facing the lower mold and has a guide groove, which extends along the direction from the pusher to the elastic member;

[0023] The driving body is connected to the supporting body;

[0024] A linkage body, one end of which movably passes through the guide groove and is connected to the drive body, and the other end of which is detachably connected to the push member, so that the drive body drives the linkage body to move the push member synchronously; and

[0025] A stop body is provided on the guide groove and connected to the support body. The stop body is used to stop the linkage body from moving into the guide groove.

[0026] In some embodiments, the upper mold component further includes:

[0027] Multiple positioning elements are spaced apart on the upper mold and surround to form a positioning space, which is used to position the upper mold core to the upper mold.

[0028] In some embodiments, both the upper module and the lower module include:

[0029] The fixing plates of the upper mold and the lower mold are arranged opposite to each other;

[0030] A heat insulation plate is disposed on the side of the fixing plate facing the upper mold core and connected to the fixing plate; and

[0031] A heating plate is disposed on the side of the heat insulation plate away from the fixing plate. The fixing plate of the upper mold is used to heat the upper mold core, and the fixing plate of the lower mold is used to heat the lower mold core. Attached Figure Description

[0032] Figure 1This is a three-dimensional structural diagram of the hot pressing mold provided in the embodiments of this application.

[0033] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the hot press mold along the II-II direction.

[0034] Figure 3 for Figure 1 The diagram shows an exploded view of the mold core assembly in the hot press mold.

[0035] Figure 4 for Figure 1 The diagram shows a three-dimensional structural schematic of the upper mold assembly in the hot press mold.

[0036] Figure 5 for Figure 1 The diagram shows a three-dimensional structural schematic of the lower mold assembly in a hot press mold.

[0037] Figure 6 for Figure 4 The diagram shows an exploded view of the drive component in the upper mold assembly.

[0038] Key component symbols: Hot press mold 100, mold core assembly 10, upper mold core 11, receiving groove 111, opening 112, mold core body 113, clearance groove 1131, clearance hole 1132, protrusion 1133, cover body 114, connecting hole 1141, lower mold core 12, extension 121, pusher 13, through hole 131, pusher body 132, mounting hole 1321, abutting slope 1322, connecting body 133, elastic element 14, locking element 15, support body 151 152, locking body, 20, lower mold assembly, 21, pressing part, 22, fixing body, 222, pressing part, 23, storage space, 231, upper mold assembly, 30, upper mold part, 31, fixing plate, 311, heat insulation plate, 312, heating plate, 313, limiting part, 321, main body, 322, limiting body, 33, driving part, 331, support body, 331, guide groove, 332, driving body, 333, linkage body, 334, stop body, 34, positioning part, positioning space, 341. Detailed Implementation

[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0043] Please see Figure 1 This application provides a hot pressing mold 100, which includes multiple sets of mold core assemblies 10, lower mold assemblies 20, and upper mold assemblies 30, for hot pressing a workpiece (not shown) into a preset structure. The workpiece can be made of carbon fiber composite material.

[0044] Please see Figure 1 and Figure 2Each mold core assembly 10 includes an upper mold core 11, a lower mold core 12, a pusher 13, an elastic member 14, and a locking member 15. The upper mold core 11 and the lower mold core 12 are used to abut against each other and receive the workpiece to be formed during mold closing, so as to form the workpiece by thermoforming. The upper mold core 11 is provided with a receiving groove 111 and an opening 112. The receiving groove 111 extends in the direction perpendicular to the mold opening direction, and the opening 112 is located on the side of the upper mold core 11 away from the lower mold core 12 and communicates with the receiving groove 111. The pusher 13 is movably inserted through the upper mold core 11 and extends to the receiving groove 111. The pusher 13 has a through hole 131. The two ends of the elastic member 14 elastically abut against the pusher 13 and the groove wall of the receiving groove 111, respectively. The locking member 15 is connected to the lower mold core 12. The locking member 15 is used to insert into the through hole 131 and abut against the upper surface of the pusher 13 when the mold is closed, so as to lock the lower mold core 12 to the upper mold core 11. The lower mold assembly 20 includes a lower mold member 21 and a pressing member 22. The lower mold member 21 is located on the side of the lower mold core 12 away from the upper mold core 11. The lower mold member 21 is used to carry the lower mold core 12 of one set of mold core assemblies 10 and heat the lower mold core 12. The pressing member 22 is connected to the lower mold core 12 and is used to press the lower mold core 12 against the lower mold member 21. The upper mold assembly 30 includes an upper mold part 31, a limiting member 32, and a driving member 33. The upper mold part 31 is disposed opposite to the lower mold part 21 and is located on the side of the upper mold core 11 away from the lower mold core 12. The upper mold part 31 is used to support the upper mold core 11 of the same set of mold core assemblies 10 and to heat the upper mold core 11. The limiting member 32 is connected to the upper mold part 31 and is used to insert into the opening 112 and extend into the receiving groove 111. The driving member 33 is connected to the upper mold part 31 and is used to engage the end of the push member 13 away from the elastic member 14 and drive the push member 13 to compress the elastic member 14 to the groove wall of the receiving groove 111 so that the push member 13 is released from the locking member 15 and engaged with the limiting member 32.

[0045] When using the aforementioned hot press mold 100, multiple sets of mold core assemblies 10 are first preheated to a preset temperature by placing them in an external heating device. The upper mold part 31 and the lower mold part 21 are also preheated to the preset temperature. Then, one set of mold core assemblies 10 is placed in the lower mold part 21, and the pressing member 22 presses the lower mold core 12 against the lower mold part 21. The upper mold part 31 drives the limiting member 32 to insert into the opening 112 and extend into the receiving groove 111. The driving member 33 engages with the pushing member 13 and drives the mold core 12 to move. The pushing member 13 compresses the elastic member 14 to the groove wall of the receiving groove 111, so that the pushing member 13 is released from the locking member 15 and locked with the limiting member 32, thereby locking the upper mold core 11 to the upper mold member 31 and releasing it from the lower mold core 12. Then, the upper mold member 31 moves the upper mold core 11 away from the lower mold core 12, and then the workpiece is placed on the lower mold core 12. The upper mold member 31 then moves the upper mold core 11 closer to the lower mold core 12 so that the upper mold core 11 and the lower mold core 12 close together. The locking member 15 connected to the core 12 is inserted into the through hole 131. At the same time, the workpiece is formed into the preset structure under high temperature and high pressure. Finally, the compressed elastic member 14 and the driving member 33 drive the pushing member 13 away from the elastic member 14, so that the locking member 15 abuts against the upper surface of the pushing member 13 to lock the lower core 12 to the upper core 11. Then, the mutually locked upper core 11 and lower core 12 and the workpiece are placed in an external pressure holding device for pressure holding and cooling operations. Another set of core components 10 preheated to the preset temperature is placed in the lower mold 21 to replace the core components 10 that have completed the hot pressing of the workpiece. By alternately placing the preheated core components 10 to the upper mold assembly 30 and the lower mold assembly 20, the upper mold assembly 30 and the lower mold assembly 20 can quickly complete the hot pressing of multiple workpieces, reducing the process steps of the hot pressing mold 100, realizing continuous and rapid hot pressing of multiple workpieces into the preset structure, and improving production efficiency.

[0046] Please see Figure 3In some embodiments, the upper mold core 11 includes a mold core body 113 and a cover body 114. The mold core body 113 has a receiving groove 111, a relief groove 1131 and a clearance hole 1132. The relief groove 1131 corresponds to the opening 112 and is located at the bottom of the receiving groove 111. The relief groove 1131 is used to receive the end of the limiting member 32 away from the upper mold member 31. The clearance hole 1132 is spaced apart from the relief groove 1131 on the groove wall of the receiving groove 111. The clearance hole 1132 is used to receive the locking member 15. The mold core body 113 has a protrusion 1133. The protrusion 1133 protrudes from the bottom of the receiving groove 111 and is located at the opening of the receiving groove 111 away from the elastic member 14. The protrusion 1133 is movably inserted through the push member 13 in the mold opening direction and is used to limit the push member 13. The cover body 114 is covered on the receiving groove 111 and is detachably connected to the mold core body 113. The cover body 114 has an opening 112 and a connecting hole 1141. The connecting hole 1141 is connected to the receiving groove 111 and corresponds to the clearance hole 1132. The connecting hole 1141 is used to receive the end of the locking member 15 away from the lower mold core 12.

[0047] Thus, by detachably connecting the cover body 114 to the mold core body 113, the upper mold core 11 forms a split structure, facilitating the assembly of the pusher 13 into the receiving groove 111. Furthermore, the clearance groove 1131 accommodates the end of the limiting member 32 away from the upper mold part 31, and the clearance hole 1132 and the connecting hole 1141 accommodate the locking member 15, preventing collisions between the pusher 13, the limiting member 32, and the locking member 15 during coordinated operation, thus helping to maintain the normal operation of the hot press mold 100. In addition, the protrusion 1133, which movably passes through the pusher 13, limits the distance the pusher 13 moves towards or away from the elastic member 14, thereby ensuring stable engagement between the pusher 13 and the limiting member 32 or the locking member 15, improving the accuracy of the coordinated operation between the pusher 13, the limiting member 32, and the locking member 15.

[0048] Please continue reading. Figure 3 In some embodiments, the pusher 13 includes a pusher body 132 and a connecting body 133. The pusher body 132 is slidably disposed in the receiving groove 111 and abuts against the elastic member 14. The pusher body 132 is provided with a through hole 131 and a mounting hole 1321 spaced apart. The through hole 131 is adjacent to the elastic member 14 relative to the mounting hole 1321. The through hole 131 is used to receive the locking member 15, and the mounting hole 1321 is used to receive the protrusion 1133. The connecting body 133 protrudes from the side of the pusher body 132 opposite to the elastic member 14, and the connecting body 133 is used for detachably connecting the drive member 33.

[0049] Thus, by housing the protrusion 1133 through the mounting hole 1321, when the pushing member 13 moves closer to the elastic member 14, the wall of the mounting hole 1321 adjacent to the elastic member 14 abuts against the protrusion 1133 to limit the movement distance of the pushing member 13 towards the elastic member 14. When the pushing member 13 moves away from the elastic member 14, the wall of the mounting hole 1321 away from the elastic member 14 abuts against the protrusion 1133 to limit the movement distance of the pushing member 13 away from the elastic member 14. This allows the mounting hole 1321 and the protrusion 1133 to cooperate in limiting the movement distance of the pushing member 13. Furthermore, by providing the aforementioned connecting body 133, it is easy to connect the connecting body 133 to the driving member 33 according to locking requirements, so that the driving member 33 can stably drive the connecting body 133 to move the pushing member 132.

[0050] Please see Figure 2 and Figure 3 In some embodiments, the pusher 132 has an abutment slope 1322 on the side away from the lower mold core 12. The abutment slope 1322 is inclined relative to the vertical direction of the mold opening direction. The abutment slope 1322 and the mounting hole 1321 are located on both sides of the through hole 131, and the abutment slope 1322 is connected to the hole wall of the through hole 131. The locking member 15 includes a support body 151 and a locking body 152. The support body 151 is connected to the lower mold core 12 and is used to be inserted into the clearance hole 1132 and the through hole 131 when the mold is closed. The locking body 152 protrudes from the side of the support body 151 facing the elastic member 14 and is used to move into the connecting hole 1141 and abut against the abutment slope 1322 under the action of the support body 151 when the mold is closed.

[0051] Thus, by setting the abutting slope 1322 at an angle relative to the vertical direction of the mold opening direction, when the pushing member 13 moves away from the elastic member 14, the abutting slope 1322 can form a certain movable gap on the side of the locking body 152 adjacent to the support body 151, so as to avoid the collision between the pushing member 13 and the locking member 15 due to the tolerance factors of the two, so that the locking body 152 can stably abut against the abutting slope 1322 after the pushing member 13 moves away from the elastic member 14 for a certain distance, thereby ensuring that the locking member 15 stably locks the lower mold core 12 to the upper mold core 11.

[0052] Please see Figure 2 and Figure 4 In some embodiments, the limiting member 32 includes a main body 321 and a limiting body 322. The main body 321 is connected to the upper mold member 31, and the limiting body 322 protrudes from the side of the main body 321 facing the driving member 33. The limiting body 322 is used to insert into the receiving groove 111 and extend into the avoidance groove 1131 under the drive of the main body 321, so as to abut against the lower surface of the pushing member 13.

[0053] Thus, by setting the limiting body 322 protruding on the side of the main body 321 facing the driving member 33, when the limiting body 322 is inserted into the receiving groove 111 and extends into the relief groove 1131, the pushing member 13 moves above the limiting body 322, thereby making the lower surface of the pushing member 13 stably abut against the limiting body 322, thereby realizing the function of locking the upper mold core 11 to the upper mold member 31.

[0054] Please see Figure 3 and Figure 5 In some embodiments, the outer side of the lower mold core 12 is provided with an extension 121, and the pressing member 22 includes a fixing body 221 and a pressing body 222. The fixing body 221 is connected to the lower mold core 21, and the pressing body 222 protrudes from the side of the fixing body 221 facing the lower mold core 12. The pressing body 222 is used to press the extension 121 against the lower mold core 21.

[0055] Thus, when the lower mold part 21 receives the mold core assembly 10, the operator or robot places the mold core assembly 10 on the lower mold part 21 and pushes the mold core assembly 10 to slide relative to the pressing body 222. When the mold core assembly 10 moves to the predetermined installation position of the lower mold part 21, the pressing body 222 presses against the extension 121 to the lower mold part 21, so that the pressing body 22 locks the lower mold core 12 to the lower mold part 21, so that the lower mold part 21 can drive the lower mold core 12 to open and close the mold stably.

[0056] Please see Figure 5 In some embodiments, the lower mold assembly 20 further includes a retaining member 23, which is spaced apart from the pressing member 22 on the lower mold assembly 21 and together with the pressing member 22 forms a storage space 231 for storing the lower mold core 12. The retaining member 23 is used to hold the lower mold core 12 in the storage space 231.

[0057] Thus, by setting the supporting member 23 and the pressing member 22 to form a storage space 231, when the lower mold member 21 receives the mold core assembly 10, the mold core assembly 10 moves into the storage space 231, and the supporting member 23 abuts against the lower mold core 12 of the mold core assembly 10, thereby limiting the movement distance of the mold core assembly 10 relative to the pressing member 22, so that the mold core assembly 10 is stably fixed in the storage space 231.

[0058] Please see Figure 4 and Figure 6In some embodiments, the driving member 33 includes a support 331, a driving body 332, a linkage 333, and a stop 334. The support 331 is connected to the side of the upper mold 31 facing the lower mold 21 and has a guide groove 3311. The guide groove 3311 extends along the direction from the pusher 13 to the elastic member 14. The driving body 332 is connected to the support 331. One end of the linkage 333 is movably inserted through the guide groove 3311 and connected to the driving body 332. The other end of the linkage 333 is used to detachably connect to the pusher 13, so that the driving body 332 drives the linkage 333 to move the pusher 13 synchronously. The stop 334 covers the guide groove 3311 and is connected to the support 331. The stop 334 is used to stop the linkage 333 from reaching the guide groove 3311. Exemplarily, the driving body 332 can be a cylinder.

[0059] Thus, by connecting the support 331 to the drive 332, the support 331 supports the drive 332, allowing the drive 332 to stably drive the linkage 333 to move the pusher 132. Furthermore, by providing the linkage 333 to move movably through the guide groove 3311, the guide groove 3311 guides the movement direction of the linkage 333, ensuring the linkage 333 stably drives the pusher 132 closer to or away from the elastic member 14, further improving the driving stability of the drive member 33. Additionally, by covering the guide groove 3311 with a stop 334, the stop 334 prevents the linkage 333 from disengaging from the guide groove 3311, ensuring the linkage 333 always remains within the guide groove 3311.

[0060] In this embodiment, the linkage body 333 and the connecting body 133 are connected by a slot to form a detachable connection structure. The end of the linkage body 333 facing the connecting body 133 has a dovetail groove, and the end of the connecting body 133 facing the linkage body 333 has a retaining portion that matches the dovetail groove. In other embodiments, the positions of the dovetail groove and the retaining portion can be interchanged; the end of the connecting body 133 facing the linkage body 333 has a dovetail groove, and the end of the linkage body 333 facing the connecting body 133 has a retaining portion. It is understood that the linkage body 333 and the connecting body 133 can also use other connection methods for detachable connection, such as plug-in connection or snap-fit ​​connection.

[0061] Please see Figure 4 In some embodiments, the upper mold assembly 30 further includes a plurality of positioning elements 34, which are spaced apart on the upper mold assembly 31 and surround to form a positioning space 341, which is used to position the upper mold core 11 to the upper mold assembly 31.

[0062] Thus, the positioning space 341 formed by the multiple positioning members 34 is used to house the upper mold member 31, so that the multiple positioning members 34 can position the upper mold core 11, so that the limiting member 32 can be accurately inserted into the receiving groove 111 through the opening 112, avoiding misalignment between the limiting member 32 and the opening 112, which would cause the limiting member 32 and the upper mold core 11 to collide.

[0063] Please continue reading. Figure 4 In some embodiments, both the upper mold 31 and the lower mold 21 include a fixing plate 311, a heat insulation plate 312, and a heating plate 313. The fixing plates 311 of the upper mold 31 and the lower mold 21 are disposed opposite each other. The heat insulation plate 312 is located on the side of the fixing plate 311 facing the upper mold core 11 and connected to the fixing plate 311. The heating plate 313 is located on the side of the heat insulation plate 312 away from the fixing plate 311. The fixing plate 311 of the upper mold 31 is used to heat the upper mold core 11, and the fixing plate 311 of the lower mold 21 is used to heat the lower mold core 12. Exemplarily, the heating plate 313 can heat any heating element, heating block, or similar heating part that heats the upper mold core 11 or the lower mold core 12, and the heat insulation plate 312 can insulate the heating plate 313 from its high temperature using any heat insulation element, heat insulation block, or similar heat insulation part.

[0064] Thus, by providing a heat insulation plate 312 between the heating plate 313 and the fixing plate 311, the heat insulation plate 312 can isolate the high temperature of the heating plate 313, preventing the fixing plate 311 from being damaged by the high temperature of the heating plate 313.

[0065] The working process of the hot press mold 100 described above is roughly as follows:

[0066] First, multiple sets of mold core assemblies 10 are placed in an external heating device and preheated to a preset temperature. The upper mold 31 and the lower mold 21 are also preheated to a preset temperature.

[0067] Then, one set of mold core assemblies 10 is placed on the lower mold part 21, and the mold core assembly 10 is pushed to move relative to the pressing member 22. The holding member 23 abuts against the lower mold core 12 of the mold core assembly 10, and the pressing member 22 presses the lower mold core 12 against the lower mold part 21 to lock the lower mold core 12 to the lower mold part 21. The upper mold part 31 drives the limiting member 32 to insert into the opening 112 and extend into the receiving groove 111. The driving member 33 engages with the pushing member 13 and drives the pushing member 13 to compress the elastic member 14 to the groove wall of the receiving groove 111, so that the pushing member 13 is released from the locking member 15 and engaged with the limiting member 32, so that the upper mold core 11 is locked to the upper mold part 31 and released from the lower mold core 12.

[0068] Next, the upper mold part 31 drives the upper mold core 11 away from the lower mold core 12, and then places the workpiece on the lower mold core 12. The upper mold part 31 then drives the upper mold core 11 closer to the lower mold core 12 so that the upper mold core 11 and the lower mold core 12 close the mold. The locking part 15 connected to the lower mold core 12 is inserted into the through hole 131. At the same time, the workpiece is formed into the preset structure under high temperature and high pressure.

[0069] Finally, the compressed elastic element 14 and driving element 33 drive the pushing element 13 away from the elastic element 14, causing the locking element 15 to abut against the upper surface of the pushing element 13 to lock the lower mold core 12 to the upper mold core 11. At the same time, the driving element 33 and the pushing element 13 are released from each other. The mutually locked upper mold core 11 and lower mold core 12 and the workpiece are then placed in an external pressure holding device for pressure holding and cooling operations. Another set of mold core assemblies 10 preheated to a preset temperature is placed in the lower mold assemblies 21 to replace the mold core assemblies 10 that have completed the hot pressing of the workpiece. By alternately placing the preheated mold core assemblies 10 to the upper mold assembly 30 and the lower mold assembly 20, the upper mold assembly 30 and the lower mold assembly 20 can quickly complete the hot pressing of multiple workpieces, reducing the process steps of the hot pressing mold 100, realizing continuous and rapid hot pressing of multiple workpieces to a preset structure, and improving production efficiency.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A hot pressing mold, characterized in that, include: Multiple sets of mold core assemblies, each set of mold core assemblies including an upper mold core, a lower mold core, a pusher, an elastic member, and a locking member. The upper mold core and the lower mold core are used to abut against each other and receive the workpiece to be formed when the mold is closed, so as to form the workpiece by hot pressing. The upper mold core is provided with a receiving groove and an opening. The receiving groove extends in a direction perpendicular to the mold opening direction. The opening is located on the side of the upper mold core away from the lower mold core and communicates with the receiving groove. The pusher is movably inserted through the upper mold core and extends to the receiving groove. The pusher has a through hole. The two ends of the elastic member elastically abut against the pusher and the groove wall of the receiving groove, respectively. The locking member is connected to the lower mold core. The locking member is used to insert into the through hole and abut against the upper surface of the pusher when the mold is closed, so as to lock the lower mold core to the upper mold core. A lower mold assembly includes a lower mold member and a pressing member. The lower mold member is located on the side of the lower mold core opposite to the upper mold core. The lower mold member is used to support the lower mold core of one set of mold core assemblies and to heat the lower mold core. The pressing member is connected to the lower mold core and is used to press the lower mold core against the lower mold member. The upper mold assembly includes an upper mold component, a limiting component, and a driving component. The upper mold component is disposed opposite to the lower mold component and located on the side of the upper mold core away from the lower mold core. The upper mold component is used to support the upper mold cores of the same set of mold core assemblies and to heat the upper mold cores. The limiting component is connected to the upper mold component and is used to insert into the opening and extend into the receiving groove. The driving component is connected to the upper mold component and is used to engage the end of the pusher away from the elastic member and drive the pusher to compress the elastic member against the groove wall of the receiving groove, so that the pusher is released from the locking component and engaged with the limiting component.

2. The hot pressing mold as described in claim 1, characterized in that, The upper mold core includes: The mold core body has the aforementioned receiving groove, clearance groove, and clearance hole. The clearance groove corresponds to the opening and is located at the bottom of the receiving groove. The clearance groove is used to receive the end of the limiting member away from the upper mold member. The clearance hole is spaced apart from the clearance groove on the groove wall of the receiving groove. The clearance hole is used to receive the locking member. The mold core body has a protrusion. The protrusion protrudes from the bottom of the receiving groove and is located at the opening of the receiving groove away from the elastic member. The protrusion moves through the pushing member along the mold opening direction and is used to limit the pushing member. A cover body is provided on the receiving groove and detachably connected to the mold core body. The cover body is provided with the opening and the communicating hole. The communicating hole communicates with the receiving groove and corresponds to the clearance hole. The communicating hole is used to receive the end of the locking member away from the lower mold core.

3. The hot pressing mold as described in claim 2, characterized in that, The pushing component includes: A pusher body is slidably disposed in the receiving groove and abuts against the elastic member. The pusher body is provided with the through hole and the mounting hole at intervals. The through hole is adjacent to the elastic member relative to the mounting hole. The through hole is used to receive the locking member. The mounting hole is used to receive the protrusion. A connector protrudes from the side of the pusher away from the elastic member, and the connector is used to detachably connect to the drive member.

4. The hot pressing mold as described in claim 3, characterized in that, The pusher body has an abutting slope on the side away from the lower mold core. The abutting slope is inclined relative to the direction perpendicular to the mold opening direction. The abutting slope and the mounting hole are located on both sides of the through hole, and the abutting slope is connected to the hole wall of the through hole. The locking component includes a support body and a locking body. The support body is connected to the lower mold core. The support body is used to be inserted into the clearance hole and the through hole when the mold is closed. The locking body protrudes from the side of the support body facing the elastic member. The locking body is used to move into the connecting hole and abut against the abutting inclined surface under the action of the support body when the mold is closed.

5. The hot pressing mold as described in claim 2, characterized in that, The limiting member includes a main body and a limiting body. The main body is connected to the upper mold member. The limiting body protrudes from the side of the main body facing the driving member. The limiting body is used to insert into the receiving groove and extend into the clearance groove under the drive of the main body, so as to abut against the lower surface of the pushing member.

6. The hot pressing mold as described in claim 1, characterized in that, The lower mold core has an extension protruding from its outer side. The pressing member includes a fixing body and a pressing body. The fixing body is connected to the lower mold core. The pressing body protrudes from the fixing body on the side facing the lower mold core. The pressing body is used to press the extension to the lower mold core.

7. The hot pressing mold as described in claim 1, characterized in that, The lower mold assembly also includes: A retaining member is disposed at a distance from the pressing member on the lower mold member, and together with the pressing member, forms a storage space for accommodating the lower mold core. The retaining member is used to abut the lower mold core within the storage space.

8. The hot pressing mold as described in claim 1, characterized in that, The driving component includes: The support body is connected to the side of the upper mold facing the lower mold and has a guide groove, which extends along the direction from the pusher to the elastic member; The driving body is connected to the supporting body; A linkage body, one end of which movably passes through the guide groove and is connected to the drive body, and the other end of which is detachably connected to the push member, so that the drive body drives the linkage body to move the push member synchronously; and A stop body is provided on the guide groove and connected to the support body. The stop body is used to stop the linkage body from moving into the guide groove.

9. The hot pressing mold as described in claim 1, characterized in that, The upper mold assembly also includes: Multiple positioning elements are spaced apart on the upper mold and surround to form a positioning space, which is used to position the upper mold core to the upper mold.

10. The hot pressing mold as described in claim 1, characterized in that, Both the upper mold and the lower mold include: The fixing plates of the upper mold and the lower mold are arranged opposite to each other; A heat insulation plate is disposed on the side of the fixing plate facing the upper mold core and connected to the fixing plate; and A heating plate is disposed on the side of the heat insulation plate away from the fixing plate. The fixing plate of the upper mold is used to heat the upper mold core, and the fixing plate of the lower mold is used to heat the lower mold core.

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