A flat die structure for extrusion die

Abstract

The invention belongs to the technical field of aluminum profile extrusion die manufacturing, and specifically relates to an extrusion die plane die structure, comprising: a feed die, a deformation die one, a deformation die two and a forming die, wherein the feed die, the deformation die one, the deformation die two and the forming die are respectively manufactured and formed and then assembled into an extrusion die for extrusion production of products; a feed cavity is arranged inside the feed die, wherein the feed cavity comprises a feed port matching the extrusion blank; the feed die and the deformation die one and the deformation die two are used for deforming and extruding the blank used for production, and by dividing the mold as a whole into a plurality of modules such as the feed die and the deformation die one, the deformation die two and the forming die, production and processing can be carried out simultaneously between the modules, so as to reduce production time consumption, and the feed die and the deformation die one, the deformation die two and the forming die can gradually extrude and deform the blank, so as to reduce the impact force of the forming die core subjected to the extrusion deformation of the aluminum material, and reduce the possibility of deformation of the forming die core.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum profile extrusion die manufacturing, and in particular relates to a plane die structure of an extrusion die. Background Art

[0002] In the preparation process of aluminum profiles, extrusion is a common means of forming aluminum profiles, and the mold is an essential basic tooling in the extrusion process. The mold needs to be designed and manufactured according to the cross-sectional structure of the profile product. The existing aluminum profile extrusion molds can be basically divided into two categories: flat molds and diversion molds. Flat molds are mainly used to produce aluminum profiles with simple cross-sections and non-closed hollow aluminum profiles. Since the production of flat molds usually adopts integrated milling and heat treatment, the production process is relatively long. In addition, during extrusion production, the mold core is easily deformed by the continuous extrusion of the production material, and the entire mold is scrapped after deformation, resulting in an increase in production costs;

[0003] For example, a flat die structure of an extrusion die with a Chinese patent application publication number of CN114160599A and a preparation method thereof, the device includes a flat die and a die pad, a die hole is provided in the center of the flat die, a flow rate control cavity surrounding the die hole is provided on the feed surface of the flat die, a flow guide groove is provided on the periphery of the flow rate control cavity, and a plurality of strength pin holes are provided on the discharge surface of the flat die; the vertical distance between the edge of the strength pin hole and the edge of the die hole is greater than 8mm, and the distance between two adjacent strength pin holes is greater than or equal to 8mm; a central through hole with a geometrically similar shape to the die hole is provided in the center of the die pad, and a strength pin matching the strength pin hole is provided on the feed surface of the die pad. According to the flat die structure of the present invention, a rapid preparation method for the flat die is also provided, which can shorten the preparation cycle of the original die by 78%, and at the same time save 60% of the consumables cost of the die, thereby improving production efficiency and reducing production costs.

[0004] As in the prior art described in the above patent, although the production efficiency of the mold can be improved to a certain extent, the entire mold is produced with an integral structure, and the mold core is subjected to a large extrusion impact force when extruding aluminum profiles, and is prone to deformation. When damaged, it needs to be replaced as a whole, which increases the cost of use. Summary of the invention

[0005] The purpose of the present invention is to provide an extrusion die flat die structure, which can divide the die into multiple modules for production and then assemble them, which can not only improve production efficiency but also enable the die to be replaced as needed according to the structure when replaced, thereby reducing production costs.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An extrusion die plane die structure, comprising: a feed die, a deformation die one, a deformation die two and a forming die, wherein the feed die, the deformation die one, the deformation die two and the forming die are separately manufactured and formed and then assembled into an extrusion die for extrusion production of products; a feed cavity is arranged inside the feed die, wherein the feed cavity comprises a feed port matching the extrusion blank, and the side of the feed cavity in contact with the deformation die one is the deformation port; a deformation die core one is arranged inside the deformation die one, wherein the deformation die core one comprises a receiving core one in contact with the deformation port, and the deformation die The side of mold core one in contact with the deformable mold two is deformable core one; the interior of the deformable mold two is provided with deformable mold core two, the deformable mold core two includes a receiving core two in contact with the deformable core one, and the side of the deformable mold core two in contact with the forming mold is deformable core two; the interior of the forming mold is provided with a forming mold core for product forming; the feeding mold, the deformable mold one and the deformable mold two are used to deform and extrude the blank used for production, gradually approaching the shape of the product to be produced, thereby reducing the impact force of the blank on the forming mold when the forming mold is used for finalizing production.

[0008] In a preferred embodiment, the feed port and the deformation port in the feed cavity are connected by a smooth curved surface, the feed port and the deformation port are both provided with circular chamfers, and the inner diameter of the feed port is set to be the same as the outer diameter of the blank.

[0009] In a preferred embodiment, the receiving core 1 in the deforming mold core 1 is connected to the deforming core 1 through a smooth curved surface, the structural shape of the receiving core 1 is set to be the same as the structural shape of the deformation opening, and the structural shape of the deforming core 1 is the same as the structural shape of the product produced.

[0010] In a preferred embodiment, the receiving core 2 in the deformable mold core 2 is connected to the deformable core 2 through a smooth curved surface, and the structural shape of the receiving core 2 is set to be the same as the structural shape of the deformable core 1, the receiving core 2 is the same as the structural shape of the deformable core 2, but the size of the receiving core 2 is larger than the size of the deformable core 2, and the size and shape of the deformable core 2 are set to be the same as the size and shape of the forming mold core.

[0011] In a preferred embodiment, a reinforcing rib is provided on one side of the discharge plane of the forming die, and the structural shape of the reinforcing rib is arranged to be the same as the structural shape of the forming die core.

[0012] In a preferred embodiment, the feed die is provided with guide pins on the surface in contact with the deforming die 1, the deforming die 1 is provided with guide pins on the surface in contact with the deforming die 2, and the deforming die 2 is provided with guide pins on the surface in contact with the forming die, and the deforming die 1, the deforming die 2 and the forming die are provided with positioning holes that match the guide pins.

[0013] In a preferred embodiment, the outer structures and dimensions of the feed mold and the deformation mold 1 as well as the deformation mold 2 and the forming mold are all arranged in the same manner; the outer edges of the feed mold and the deformation mold 1 as well as the deformation mold 2 and the forming mold are all provided with card slots, and the card slots are arranged to be interconnected; the outer sides of the feed mold and the deformation mold 1 as well as the deformation mold 2 and the forming mold are provided with heat dissipation fins; the heat dissipation fins are slidably engaged in the card slots through card blocks; a locking bolt is passed through the card block; and convection holes are evenly penetrated in the heat dissipation fins.

[0014] In a preferred embodiment, the outer edges of the feed die and the first deformation die, as well as the second deformation die and the forming die are further provided with connection holes, and the connection holes can be connected to the handles by means of threaded engagement.

[0015] In a preferred embodiment, the inner sides of the feed die and the first deformation die, as well as the second deformation die and the forming die are provided with interconnected bolt through holes, and assembly bolts are inserted into the bolt through holes for assembly and fixation of the molds.

[0016] In a preferred embodiment, the feeding die is provided with a boss on the surface in contact with the deforming die 1, the deforming die 1 is provided with a boss on the surface in contact with the deforming die 2, and the deforming die 2 is provided with a boss on the surface in contact with the forming die, and the deforming die 1, the deforming die 2 and the forming die are provided with grooves matching the bosses.

[0017] The technical effects achieved by the present invention are:

[0018] 1. The present invention divides the mold into multiple modules such as a feed mold, a deformation mold 1, a deformation mold 2, and a forming mold. The modules can be processed simultaneously, thereby reducing production time. The blank can be gradually extruded and deformed by the feed mold, the deformation mold 1, the deformation mold 2, and the forming mold, thereby reducing the impact force of the extrusion deformation of the aluminum material on the forming mold core, thereby reducing the possibility of deformation of the forming mold core. When the forming mold core is scrapped, only a certain module can be replaced according to the usage, thereby reducing the consumption cost of production;

[0019] 2. The present invention can increase the strength of the forming mold core by arranging a reinforcing rib on one side of the discharge port of the forming mold, thereby preventing the aluminum profile from extruding the forming mold core and causing deformation when the forming mold core extrudes the aluminum profile;

[0020] 3. The present invention can increase the contact area between the mold and the outside world by arranging heat dissipation fins on the outside of the mold, thereby increasing the overall heat dissipation capacity of the mold, and the heat dissipation fins can be flexibly engaged in the card slots for assembly and connection with the mold, and the use of heat dissipation fins can be increased or reduced according to specific usage conditions, so that the heat dissipation of the mold is in an optimal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall half-section structure of the present invention;

[0023] Figure 3 It is a half-sectioned enlarged structural schematic diagram of the feed die of the present invention;

[0024] Figure 4 It is a half-sectioned enlarged structural schematic diagram of a feed die and a deformation die of the present invention;

[0025] Figure 5 It is a half-sectioned enlarged structural schematic diagram of the deformation mold 1 of the present invention;

[0026] Figure 6 It is a half-section enlarged structural schematic diagram of the deformation mold 1 and the deformation mold 2 of the present invention;

[0027] Figure 7 It is a half-sectioned enlarged structural schematic diagram of the deformation mold 2 of the present invention;

[0028] Figure 8 It is a half-section enlarged structural schematic diagram of the deformation mold 2 and the forming mold of the present invention;

[0029] Fig. 9 It is a half-section enlarged structural schematic diagram of the forming die of the present invention;

[0030] Fig.10 It is a schematic diagram of the exploded and enlarged structure between the forming die and the reinforcing rib of the present invention;

[0031] Fig.11 It is a schematic diagram of the enlarged structure of the installation between the mold and the heat dissipation fins of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Feeding mold; 11. Feeding cavity; 110. Feeding port; 111. Deformation port;

[0034] 2. Deformation mold 1; 21. Deformation mold core 1; 210. Accepting core 1; 211. Deformation core 1

[0035] 3. Deformation mold 2; 31. Deformation mold core 2; 310. Accepting core 2; 311. Deformation core 2

[0036] 4. forming mold; 41. forming mold core;

[0037] 5. Strengthening ribs; 51. Fixing holes;

[0038] 6. Guide pin; 61. Positioning hole;

[0039] 7. Card slot; 71. Heat dissipation fin; 72. Card block; 73. Lock bolt; 74. Convection hole;

[0040] 8. Connecting hole; 81. Handle;

[0041] 9. Bolt through hole; 91. Assembly bolt; 92. Boss; 93. Groove; 94. Sealing gasket. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0045] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0046] See also Figure 1 and Figure 2As shown, the present invention provides an extrusion die plane die structure, including: a feed die 1, a deformation die 2, a deformation die 3 and a forming die 4, the feed die 1, the deformation die 2, the deformation die 3 and the forming die 4 are respectively manufactured and formed and then assembled into an extrusion die for extrusion production of products; a feed cavity 11 is arranged inside the feed die 1, wherein the feed cavity 11 includes a feed port 110 matching the extrusion blank, and the side of the feed cavity 11 in contact with the deformation die 2 is a deformation port 111; a deformation die core 21 is arranged inside the deformation die 2, and the deformation die core 21 includes a receiving core 21 in contact with the deformation port 111. 0, the side where the deformation mold core 1 21 contacts the deformation mold 2 3 is the deformation core 1 211; the deformation mold 2 3 is provided with a deformation mold core 2 31 inside, the deformation mold core 2 31 includes a receiving core 2 310 in contact with the deformation core 1 211, and the side where the deformation mold core 2 31 contacts the forming mold 4 is the deformation core 2 311; the forming mold 4 is provided with a forming mold core 41 for product forming; the feed mold 1 and the deformation mold 1 2 and the deformation mold 2 3 are used to deform and extrude the blank used for production, gradually approaching the shape of the product to be produced, so that the impact of the blank on the forming mold 4 can be reduced when the forming mold 4 is used for finalizing production;

[0047] When manufacturing the mold, first select a suitable mold blank, then place the mold blank on a CNC machine tool for milling according to the set program, and perform a tempering process according to the production process to strengthen the strength of the mold. Finally, a mold that meets the shape of the aluminum profile product to be produced is obtained, and a mold of multiple modules is obtained. The feed mold 1, the deformation mold 1 2, the deformation mold 2 3 and the forming mold 4 are assembled and fixed together to form a complete mold to cope with the extrusion production of aluminum profiles. In the extrusion production process of aluminum profiles, In the process, the aluminum profile bar is aligned with one end of the feed port 110 of the feed die 1 of the mold and is placed, and the bar is pushed from the feed port 110 of the feed die 1 to the inside by the push of the telescopic cylinder of the extruder, so that the bar passes through the deformation port 111 in sequence to reduce the diameter of the bar, and then passes through the deformation core 1 21 and the deformation core 1 211 in the deformation die 1 2 and the deformation die 2 3 to gradually shape the bar into the structural shape of the aluminum profile to be produced, and finally extruded through the forming core 41 of the forming die 4 to finally form the structural shape of the desired aluminum profile, thereby achieving the production of the aluminum profile;

[0048] The device divides the entire mold into a plurality of modules including a feed mold 1, a deformation mold 1 2, a deformation mold 2 3, and a forming mold 4. During the production process of the mold, not only can the modules be produced and processed simultaneously to reduce production time, but also when the aluminum profile is extruded through the mold, the aluminum rod blank can be gradually extruded and deformed by the feed mold 1, the deformation mold 1 2, the deformation mold 2 3, and the forming mold 4, thereby reducing the impact force of the extrusion deformation of the aluminum material on the forming mold core 41, thereby reducing the possibility of deformation of the forming mold core 41, and when the forming mold core 41 is scrapped, only a single module can be replaced according to the usage, thereby reducing the production consumption cost.

[0049] See also Figure 3 and Figure 4 As shown, the feed port 110 and the deformation port 111 in the feed cavity 11 are connected by a smooth curved surface, and the feed port 110 and the deformation port 111 are both provided with circular chamfers, and the inner diameter of the feed port 110 is set to be the same as the outer diameter of the blank;

[0050] The feeding die 1 is provided in the mold mainly to facilitate the docking of the aluminum rod material and the entry of the aluminum rod into the mold. In the process of extruding the aluminum rod from the feeding port 110 to the deformation port 111, the diameter of the aluminum rod can be reduced, so that the diameter of the aluminum rod is closer to the outer diameter of the aluminum profile product, which is convenient for the next step of deformation of the aluminum profile. The feeding port 110 and the deformation port 111 are connected by a smooth curved surface, which can make the deformation of the rod material smoother and can be deformed gradually, thereby reducing the extrusion impact of the aluminum rod on the material during deformation and reducing the possibility of deformation of the mold.

[0051] See also Figure 5 and Figure 6 As shown, the receiving core 210 and the deforming core 211 in the deforming mold core 21 are connected by a smooth curved surface, the structural shape of the receiving core 210 is set to be the same as the structural shape of the deformation opening 111, and the structural shape of the deforming core 211 is the same as the structural shape of the product to be produced;

[0052] The main function of the receiving core 210 is to receive the aluminum rod coming from the upper level, i.e., the side of the feed die 1, so that it can smoothly enter the deformation die 2. The structural shape of the receiving core 210 is the same as the structural shape of the deformation mouth 111 for this purpose. The aluminum rod material flowing from the receiving core 210 is slowly and smoothly deformed through the smooth curved surface connected by the receiving core 210 and the deformation core 211. The deformation core 211 can make the aluminum rod material gradually change from a rod to the structural shape of the product to be produced, thereby changing the structure of the aluminum rod.

[0053] See also Figure 7 and Figure 8As shown, the receiving core 210 and the deforming core 211 in the deformable mold core 21 are connected by a smooth curved surface, and the structural shape of the receiving core 210 is the same as the structural shape of the deformable core 211. The receiving core 210 and the deformable core 211 have the same structural shape, but the size of the receiving core 210 is larger than that of the deformable core 211, and the size and shape of the deformable core 211 are the same as the size and shape of the forming mold core 41;

[0054] The main function of the receiving core 2 310 is to receive the aluminum rod in the upper level, i.e., the deforming core 1 211, so that it can smoothly enter the deforming mold core 2 31, and the aluminum rod is transitioned through the smooth curved surface between the receiving core 2 310 and the deforming core 2 311 in the deforming mold core 2 31, so that the size of the profile changes from similar structure to the same structural size, and the aluminum material can be transformed into a size and shape close to the required product. Finally, the aluminum material in the deforming mold core 2 31 flows into the forming mold core 41 in the forming mold 4, and is extruded through the forming mold core 41 to form an aluminum profile product with qualified size and shape.

[0055] See also Fig. 9 and Fig.10 As shown, a reinforcing rib 5 is provided on one side of the discharge plane of the forming mold 4, and the structural shape of the reinforcing rib 5 is arranged in the same manner as the structural shape of the forming mold core 41;

[0056] A reinforcing rib 5 is provided on one side of the discharge plane of the forming die 4, which can increase the strength of the forming core 41 of the forming die 4 and avoid the forming core 41 being squeezed and deformed due to the excessively thin thickness of the forming core 41 during the production of extruded aluminum profiles, thereby affecting the production of the product. The reinforcing rib 5 is fixed by passing bolts through the fixing hole 51. The reinforcing rib 5 will not block or obstruct the aluminum material outlet of the forming core 41 and will not affect the production of the product.

[0057] Please also read Figure 2 As shown, the feed die 1 is provided with guide pins 6 on the surface in contact with the deformation die 1 2, the deformation die 1 2 is provided with guide pins 6 on the surface in contact with the deformation die 2 3, and the deformation die 2 3 is provided with guide pins 6 on the surface in contact with the forming die 4. The deformation die 1 2, the deformation die 2 3, and the forming die 4 are provided with positioning holes 61 which are matched with the guide pins 6.

[0058] The guide pins 6 and the positioning holes 61 are provided for guiding when two modules in the mold are docked, so that the modules can be aligned. On the other hand, they play a role in positioning and preventing errors when the modules of the mold are assembled, so as to prevent docking errors. During assembly, the guide pins 6 of the feed mold 1 can be aligned and inserted into the positioning holes 61 of the adjacent modules for assembly.

[0059] See also Fig.11As shown, the external structure and size of the feed mold 1, the deformation mold 1 2, the deformation mold 2 3 and the forming mold 4 are all arranged in the same manner, and the outer edges of the feed mold 1, the deformation mold 1 2, the deformation mold 2 3 and the forming mold 4 are all provided with card slots 7, and the card slots 7 are arranged in communication with each other, and the outer sides of the feed mold 1, the deformation mold 1 2, the deformation mold 2 3 and the forming mold 4 are provided with heat dissipation fins 71, and the heat dissipation fins 71 are slidably engaged in the card slots 7 through card blocks 72, and locking bolts 73 are inserted in the card blocks 72, and convection holes 74 are evenly penetrated in the heat dissipation fins 71;

[0060] By arranging the heat dissipation fins 71 on the outside of the mold, the contact area between the mold and the outside can be increased, thereby increasing the overall heat dissipation capacity of the mold, and the heat dissipation fins 71 can be flexibly engaged in the card slots 7 to be assembled and connected with the mold, and the use of the heat dissipation fins 71 can be increased or reduced according to the specific use conditions, so that the heat dissipation of the mold is in the best state. The feeding mold 1 and the deformation mold 1 2 as well as the deformation mold 2 3 and the forming mold 4 are all arranged in the same shape structure and size, so that the same heat dissipation fins 71 can be selected to be sleeved on the outside of the module of any mold according to safety needs, thereby reducing the number of sizes of the heat dissipation fins 71 produced, which is convenient for mass production;

[0061] When the heat sink fin 71 is installed on the mold, the block 72 in the heat sink fin 71 can be aligned with the slot 7 and snapped in, and then adjusted according to the installation needs. The block 72 can be slid and adjusted through the slot 7, and the heat sink fin 71 can be installed on any module of the mold. After the adjustment is completed, the block 72 can be snapped into the slot 7 by tightening the locking bolt 73 to fix the heat sink fin 71.

[0062] The outer edges of the feeding die 1, the deformation die 1 2, the deformation die 2 3 and the forming die 4 are also provided with connecting holes 8, and the connecting holes 8 can be connected to the handle 81 by means of threaded engagement;

[0063] A connecting hole 8 is provided on the outside of each module of the mold to facilitate the installation of a connecting handle 81. The connecting handle 81 can be used to facilitate the picking up and control of two modules for docking assembly, and the connecting handle 81 can be removed after the assembly is completed to avoid contact with the extrusion equipment to block the installation.

[0064] The inner sides of the feed die 1, the deformation die 1 2, the deformation die 2 3 and the forming die 4 are provided with interconnected bolt through holes 9, and the assembly bolts 91 are passed through the bolt through holes 9 for assembly and fixing of the molds;

[0065] The bolt through holes 9 on the feed die 1 and the deformation die 1 2 as well as the deformation die 2 3 and the forming die 4 are set correspondingly when they are opened, so that an assembly bolt 91 can be inserted from one end to the other end to connect and fix each module in the entire mold, and can be engaged with the module at one end through a thread.

[0066] The feeding die 1 is provided with a boss 92 on the surface in contact with the deformation die 1 2, the deformation die 1 2 is provided with a boss 92 on the surface in contact with the deformation die 2 3, and the deformation die 2 3 is provided with a boss 92 on the surface in contact with the forming die 4. The deformation die 1 2, the deformation die 2 3, and the forming die 4 are provided with a groove 93 which matches the boss 92.

[0067] The bosses 92 and the grooves 93 are provided to facilitate sealing of the modules after assembly and reduce the possibility of connection between the mold cavity and the outside world. A sealing gasket 94 is provided in each groove 93 to improve the sealing performance of the connection between the bosses 92 and the grooves 93.

[0068] The working principle of the present invention is as follows: when manufacturing the mold, firstly, a suitable mold blank is selected, and then the mold blank is placed on a CNC machine tool for milling manufacturing according to a set program, and a tempering process is performed according to the production process flow to strengthen the strength of the mold, and finally a mold that meets the shape of the aluminum profile product to be produced is obtained, and a mold of multiple modules is obtained. The feed mold 1, the deformation mold 1 2, the deformation mold 2 3 and the forming mold 4 are assembled and fixed together to form a complete mold, which can cope with the extrusion production of aluminum profiles. During the extrusion production process, the aluminum profile bar is placed at one end of the feed port 110 of the feed die 1 of the mold, and the bar is pushed from the feed port 110 of the feed die 1 to the inside through the push of the telescopic cylinder of the extruder, so that the bar passes through the deformation port 111 in turn to reduce the diameter of the bar, and then passes through the deformation core 1 21 and the deformation core 1 211 in the deformation die 1 2 and the deformation die 2 3 to gradually shape the bar into the structural shape of the aluminum profile to be produced, and finally extrude it through the forming core 41 of the forming die 4 to finally form the desired structural shape of the aluminum profile, thereby achieving the production of the aluminum profile.

[0069] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An extrusion die flat die structure, characterized in that: include: A feed die (1), a deformation die 1 (2), a deformation die 2 (3) and a forming die (4), wherein the feed die (1), the deformation die 1 (2), the deformation die 2 (3) and the forming die (4) are manufactured and formed separately and then assembled into an extrusion die to perform extrusion production of the product; A feeding cavity (11) is provided inside the feeding die (1), wherein the feeding cavity (11) comprises a feeding port (110) matching the extruded blank, and a side of the feeding cavity (11) in contact with the deformation die 1 (2) is a deformation port (111); A deformation mold core 1 (21) is arranged inside the deformation mold 1 (2), and the deformation mold core 1 (21) includes a receiving core 1 (210) in contact with the deformation opening (111), and the side of the deformation mold core 1 (21) in contact with the deformation mold 2 (3) is the deformation core 1 (211); A second deformable mold core (31) is disposed inside the second deformable mold (3), and the second deformable mold core (31) includes a second receiving core (310) in contact with the first deformable core (211), and the side of the second deformable mold core (31) in contact with the forming mold (4) is the second deformable core (311); A molding core (41) for molding a product is arranged inside the molding mold (4); The feed die (1), the first deformation die (2), and the second deformation die (3) are used to deform and extrude the blank used in production, gradually approaching the shape of the product to be produced, thereby reducing the impact force of the blank on the forming die (4) when the forming die (4) is used for final production; The feed port (110) and the deformation port (111) in the feed cavity (11) are connected via a smooth curved surface, the feed port (110) and the deformation port (111) are both provided with circular chamfers, and the inner diameter of the feed port (110) is set to be the same as the outer diameter of the blank; The receiving core 1 (210) and the deforming core 1 (211) in the deforming mold core 1 (21) are connected via a smooth curved surface, the structural shape of the receiving core 1 (210) is arranged to be identical to the structural shape of the deforming opening (111), and the structural shape of the deforming core 1 (211) is identical to the structural shape of the product being produced; The receiving core 2 (310) in the deformable mold core 2 (31) is connected to the deformable core 2 (311) through a smooth curved surface, and the structural shape of the receiving core 2 (310) is the same as the structural shape of the deformable core 1 (211). The receiving core 2 (310) is the same as the structural shape of the deformable core 2 (311), but the size of the receiving core 2 (310) is larger than the size of the deformable core 2 (311), and the size and shape of the deformable core 2 (311) are the same as the size and shape of the forming mold core (41).

2. The flat die structure of an extrusion die according to claim 1, characterized in that: A reinforcing rib (5) is provided on one side of the discharge plane of the forming die (4), and the structural shape of the reinforcing rib (5) is arranged to be the same as the structural shape of the forming die core (41).

3. The flat die structure of an extrusion die according to claim 1, characterized in that: The feed die (1) is provided with a guide pin (6) on a surface in contact with the deforming die 1 (2), the deforming die 1 (2) is provided with a guide pin on a surface in contact with the deforming die 2 (3), and the deforming die 2 (3) is provided with a guide pin (6) on a surface in contact with the forming die (4). The deforming die 1 (2), the deforming die 2 (3), and the forming die (4) are provided with positioning holes (61) which are matched with the guide pins (6).

4. The flat die structure of an extrusion die according to claim 1, characterized in that: The external structures and dimensions of the feed die (1) and the deformation die (2) and the deformation die (3) and the forming die (4) are all arranged in the same manner; the outer edges of the feed die (1) and the deformation die (2) and the deformation die (3) and the forming die (4) are all provided with card slots (7), and the card slots (7) are arranged to be interconnected; the outer sides of the feed die (1) and the deformation die (2) and the deformation die (3) and the forming die (4) are provided with heat dissipation fins (71); the heat dissipation fins (71) are slidably engaged in the card slots (7) through card blocks (72); a locking bolt (73) is inserted into the card block (72); and convection holes (74) are evenly arranged in the heat dissipation fins (71).

5. The flat die structure of an extrusion die according to claim 1, characterized in that: The outer edges of the feeding die (1) and the first deformation die (2), as well as the second deformation die (3) and the forming die (4) are also provided with connection holes (8), and the connection holes (8) can be connected to a handle (81) by means of threaded engagement.

6. The flat die structure of an extrusion die according to claim 1, characterized in that: The inner sides of the feed die (1) and the first deformation die (2), as well as the second deformation die (3) and the forming die (4) are provided with interconnected bolt through holes (9), and assembly bolts (91) are inserted into the bolt through holes (9) for assembly and fixing of the dies.

7. The flat die structure of an extrusion die according to claim 1, characterized in that: The feeding die (1) is provided with a boss (92) on a surface in contact with the deforming die 1 (2), the deforming die 1 (2) is provided with a boss on a surface in contact with the deforming die 2 (3), and the deforming die 2 (3) is provided with a boss on a surface in contact with the forming die (4). The deforming die 1 (2), the deforming die 2 (3), and the forming die (4) are provided with a groove (93) which is matched with the boss (92).

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