A mold for producing a die

Abstract

The utility model relates to mould technical field more specifically, relate to a mould for producing die head, including female mould, mould and lower mould plate, the inside wall of female mould is equipped with installation space, and the mould is detachably installed in installation space, and female mould is equipped with two, and the top of lower mould plate is equipped with the core, when needing the production of the multiple die head partial structure same, partial structure difference, first female cavity and second female cavity mould the structure of die head general part, and first sub -cavity and second sub -cavity mould the structure of die head customization part, only need to replace first mould and second mould, can make mould production multiple structure different die head product, improve work efficiency, and reduce mould development cost.

Description

Technical Field

[0001] This utility model relates to the technical field of wax injection molding molds, and more specifically, to a mold for producing mold heads. Background Technology

[0002] In the manufacturing sector, the continuous expansion of product types has driven a corresponding increase in the variety of matching mold heads. As a key component in the production process, the diversity of mold head specifications meets the production needs of different products. However, when producing different specifications of mold heads, the entire mold needs to be replaced. When there are too many types of mold heads, enterprises need to invest a lot of money and manpower in mold development, increasing development costs. At the same time, frequent replacement of different types of mold heads during the production process is time-consuming, reduces production efficiency, and places extremely high technical requirements on operators, increasing the difficulty and complexity of mold changeover. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing molds that cannot produce molds of different specifications, and to provide a mold for producing molds that can be used to produce molds of different specifications.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A mold for producing die heads is provided, comprising a female mold, a female mold, and a lower mold plate. The inner wall of the female mold has an installation space, and the female mold is detachably installed in the installation space. Two female molds are provided, designated as a first female mold and a second female mold. Two female molds are provided, designated as a first female mold and a second female mold. The inner wall of the first female mold has a first female cavity, and the inner wall of the first female mold has a first female cavity communicating with the first female cavity. The inner wall of the second female mold has a second female cavity, and the inner wall of the second female mold has a second female cavity communicating with the second female cavity. The second sub-cavity, the inner wall of the first sub-mold is provided with a first semi-flow channel, the inner wall of the second sub-mold is provided with a second semi-flow channel, and the top of the lower mold plate is provided with a core; when the mold is closed, the bottom of the mother mold abuts against the top of the lower mold plate, the inner walls of the first mother mold and the second mother mold abut against each other, the inner walls of the first sub-mold and the second sub-mold abut against each other, the first mother cavity, the second mother cavity, the first sub-cavity and the second sub-cavity are spliced ​​together to form a cavity, the first semi-flow channel and the second semi-flow channel are spliced ​​together to form a flow channel, the flow channel is connected to the cavity, and the core is located in the cavity.

[0005] This utility model discloses a mold for producing mold heads. The direction away from the cavity is defined as outward, and the direction closer to the cavity as inward. A first female mold, a second female mold, and a lower template are installed on a wax injection machine. Depending on the required mold head specifications, appropriate first and second sub-molds are selected and installed in the installation spaces of the first and second female molds, respectively. The female mold, sub-molds, and lower template are then closed, such that the bottoms of the first and second female molds abut against the top of the lower template, the inner walls of the first and second female molds abut against each other, and the inner walls of the first and second sub-molds abut against each other. The first female cavity, second female cavity, first sub-cavity, and second sub-cavity are then assembled. The mold is assembled into a complete cavity to shape the external contour of the product. The core extends into the cavity to shape the internal structure of the product. The first half-channel and the second half-channel are spliced ​​together to form a flow channel. Molten material is injected into the cavity through the flow channel, cooled and shaped, and the production of the mold head is completed. When multiple mold heads need to be produced have the same structure in some parts and different structures in others, the first mother cavity and the second mother cavity shape the structure of the common parts of the mold head, and the first sub-cavity and the second sub-cavity shape the structure of the customized parts of the mold head. Only the first sub-mold and the second sub-mold need to be replaced, so that the mold can produce a variety of mold head products with different structures, improve work efficiency and reduce mold development costs.

[0006] Furthermore, the female mold has a groove with openings at its ends and top. The male mold has a protrusion that mates with the groove, and the protrusion is inserted into the groove. During installation, one end of the protrusion is aligned with the end opening of the groove, and the protrusion is gradually inserted into the groove while the male mold is gradually pushed into the installation space. The engagement of the protrusion and the groove provides a quick positioning reference for the male mold, reducing positioning time and operational difficulty during installation. It also limits the displacement of the male mold perpendicular to the insertion direction, preventing displacement of the male mold due to vibration or high pressure during production.

[0007] Furthermore, the groove is a T-shaped groove, and the protrusion is a T-shaped block. The T-shaped groove can restrict the displacement of the T-shaped block in the direction perpendicular to the groove opening, further restricting the displacement of the sub-mold; the mating structure of the T-shaped groove and the T-shaped block is not easily disengaged when subjected to vibration and impact, resulting in higher connection stability.

[0008] Furthermore, the master mold, the sub-mold, and the lower mold plate are all made of lightweight alloy, and the protrusions are made of wear-resistant alloy. The use of lightweight alloy reduces the weight of the mold, lowers the labor intensity during handling and installation, and reduces the load on the equipment. Since protrusions are prone to wear during use, using wear-resistant alloy for the protrusions reduces the problem of increased clearance due to wear, improves the durability and long-term accuracy of the mold, and extends the service life of the mold.

[0009] Furthermore, it also includes a locking pin assembly for locking the sub-mold onto the mother mold. The locking pin assembly has two sets, respectively connected between the first mother mold and the first sub-mold, and between the second mother mold and the second sub-mold. After the protrusion is inserted into the groove to install the sub-mold in place, the locking pin assembly locks the sub-mold onto the mother mold, preventing the sub-mold from falling off and improving the stability of the mold operation.

[0010] Furthermore, the locking pin assembly includes a fixing member, an elastic member, and a pin connected in sequence. The female mold has a fixing hole capable of accommodating the elastic member and the pin, and the sub-mold has an insertion hole. The fixing member is installed in the fixing hole, and the pin is inserted into the insertion hole. When installing the sub-mold, pressing the pin compresses the elastic member until the pin and the elastic member are fully pressed into the fixing hole. The sub-mold is then installed into the installation space, the pin aligns with the insertion hole, and the locking pin assembly is no longer subjected to external pressure. The elastic member resets, causing the pin to insert into the insertion hole, automatically locking the sub-mold. The operation is simple, requiring no complex tools to complete locking and unlocking, which helps to shorten mold change time.

[0011] Furthermore, the outer edge of the sub-mold is provided with a guide ramp for guiding the pin to move into the fixing hole. When the sub-mold is pushed into the mounting space of the mother mold, the guide ramp contacts the pin and gradually presses it into the fixing hole. When the fixing hole and the pin are aligned, the pin automatically pops out under the action of the elastic element and inserts into the socket to complete the locking. By setting the guide ramp, the locking of the sub-mold can be completed simply by pushing the sub-mold into the mounting space, without the need for manual operation of the locking pin assembly, simplifying the mold changing operation, shortening the mold changing time, and improving work efficiency.

[0012] Furthermore, the outer wall of the fastener is provided with an external thread, and the inner wall of the fixing hole is provided with an internal thread that mates with the external thread. The fastener is threadedly connected to the fixing hole. When it is necessary to unlock the sub-mold, the fastener is unscrewed from the fixing hole, and the fastener is pulled to pull the pin into the fixing hole, thus unlocking the sub-mold and further shortening the mold change time. At the same time, the initial position of the pin can be finely adjusted by adjusting the screw-in depth, improving assembly flexibility.

[0013] Furthermore, the inlet end of the flow channel is provided with a feed port, the diameter of which gradually decreases from the inlet end to the end connected to the feed port. The feed port can guide the molten material to be injected into the flow channel more smoothly.

[0014] Furthermore, the first half-channel is independent of the first sub-cavity, while the second half-channel is connected to the second sub-cavity. Since the first half-channel and the first sub-cavity are independent, after the molten material cools and solidifies in the channel, an easily tearable notch will be formed between the first half-channel and the first sub-cavity, facilitating the removal of the solidified material from the die head product.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model relates to a mold for producing mold heads: 1. By simply replacing the sub-mold used to shape the mold head, the mold can produce various mold head products with different structures, improving work efficiency and reducing mold development costs; 2. The master mold and sub-mold are made of lightweight alloy structure, and the protrusions that need to frequently mate with the grooves are made of wear-resistant alloy structure, which reduces weight while improving the durability and long-term accuracy of the mold; 3. The sub-mold can be automatically locked by the pin simply by pushing it into the installation space, without the need for manual operation of the locking pin assembly, simplifying mold changing operations, shortening mold changing time, and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is an exploded view of the structure of the mold used for producing die heads according to this utility model; Figure 2 This is a first structural schematic diagram of the mold used for producing die heads according to this utility model; Figure 3 This is a schematic diagram of the second structure of the mold used for producing die heads according to the present invention; Figure 4 This is a schematic diagram of the structure of the second sub-mold of the mold used for producing mold heads according to this utility model.

[0017] In the attached diagram: 1. Female mold; 11. Installation space; 12. First female cavity; 13. Groove; 14. Fixing hole; 141. Fixing section; 142. Telescopic section; 2. Sub-mold; 21. First sub-cavity; 22. Second sub-cavity; 23. First semi-flow channel; 24. Second semi-flow channel; 25. Guide slope; 26. Protrusion; 27. Insertion hole; 3. Lower template; 31. Core; 4. Locking pin assembly; 41. Fixing component; 42. Elastic component; 43. Pin; 431. Limiting part; 432. Insertion part. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0019] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] Example 1 like Figures 1 to 4 The first embodiment of the mold for producing a die head according to this utility model is shown, including a female mold 1, a sub-mold 2, and a lower template 3. The inner wall of the female mold 1 is provided with an installation space 11. The sub-mold 2 is detachably installed in the installation space 11. There are two female molds 1, referred to as the first female mold and the second female mold, and two sub-molds 2, referred to as the first sub-mold and the second sub-mold. The inner wall of the first female mold is provided with a first female cavity 12. The inner wall of the first sub-mold is provided with a first female cavity 21 communicating with the first female cavity 12. The inner wall of the second female mold is provided with a second female cavity. The inner wall of the second sub-mold is provided with a first female cavity 21 communicating with the first female cavity 12. The second sub-cavity 22 is connected to the first female mold cavity. A first semi-flow channel 23 is provided on the inner wall of the first sub-mold, and a second semi-flow channel 24 is provided on the inner wall of the second sub-mold. A core 31 is provided on the top of the lower mold plate 3. When the mold is closed, the bottom of the female mold 1 abuts against the top of the lower mold plate 3, the inner walls of the first and second female molds abut against each other, and the inner walls of the first and second sub-molds abut against each other. The first female cavity 12, the second female cavity, the first sub-cavity 21, and the second sub-cavity 22 are assembled to form the cavity. The first semi-flow channel 23 and the second semi-flow channel 24 are assembled to form a flow channel, which is connected to the cavity. The core 31 is located in the cavity. Figure 2 As shown.

[0021] The mold of this utility model for producing mold heads is defined as follows: the direction away from the cavity is considered outward, and the direction closer to the cavity is considered inward. A first female mold, a second female mold, and a lower template 3 are installed on a wax injection machine. Depending on the required mold head specifications, appropriate first and second sub-molds are selected and installed in the installation spaces 11 of the first and second female molds, respectively. The female mold 1, sub-mold 2, and lower template 3 are then closed, such that the bottoms of both the first and second female molds abut against the top of the lower template 3, the inner walls of the first and second female molds abut against each other, and the inner walls of the first and second sub-molds abut against each other. The first female cavity 12, the second female cavity, the first sub-cavity 21, and the second sub-cavity 22 are also connected. The molds are assembled into a complete cavity to shape the external contour of the product. The core 31 extends into the cavity to shape the internal structure of the product. The first half-flow channel 23 and the second half-flow channel 24 are spliced ​​together to form a flow channel. Molten material is injected into the cavity through the flow channel, cooled and shaped, and the production of the mold head is completed. When multiple mold heads that need to be produced have the same structure in some parts and different structures in others, the first mother cavity 12 and the second mother cavity shape the structure of the common parts of the mold head, and the first sub-cavity 21 and the second sub-cavity 22 shape the structure of the customized parts of the mold head. Only the first sub-mold and the second sub-mold need to be replaced, so that the mold can produce a variety of mold head products with different structures, improve work efficiency and reduce mold development costs.

[0022] like Figure 1 As shown, the female mold 1 has a groove 13 with openings at its ends and top. The male mold 2 has a protrusion 26 that mates with the groove 13 and is inserted into the groove 13. During installation, one end of the protrusion 26 is aligned with the end opening of the groove 13, and the protrusion 26 is gradually inserted into the groove 13. At the same time, the male mold 2 is gradually pushed into the installation space 11. The engagement of the protrusion 26 with the groove 13 provides a quick positioning reference for the male mold 2, reducing the positioning time and operational difficulty during installation. It also limits the displacement of the male mold 2 in the direction perpendicular to the insertion, preventing displacement of the male mold 2 due to vibration or high pressure during production.

[0023] The groove 13 is a T-shaped groove, and the protrusion 26 is a T-shaped block. The T-shaped groove can limit the displacement of the T-shaped block in the direction perpendicular to the opening of the groove 13, further limiting the displacement of the sub-mold 2; the mating structure of the T-shaped groove and the T-shaped block is not easy to separate from each other when subjected to vibration and impact, and the connection stability is higher.

[0024] The female mold 1, female mold 2, and lower template 3 are all made of lightweight alloy, while the protrusion 26 is made of wear-resistant alloy. The use of lightweight alloy reduces the weight of the mold, lowers the labor intensity during handling and installation, and reduces the load on the equipment. The protrusion 26 is prone to wear during use; using a wear-resistant alloy for the protrusion 26 reduces the problem of increased clearance due to wear, improves the durability and long-term accuracy of the mold, and extends its service life. In this embodiment, the female mold 1, female mold 2, and lower template 3 are made of 7075 aluminum alloy, which is lightweight, has moderate hardness, and is not easily deformed. The protrusion 26 is made of 12CrMoV alloy structural steel, which, after surface heat treatment, has high wear resistance.

[0025] The working principle of the mold used to produce the die head in this embodiment is as follows: The first female mold, the second female mold, and the lower template 3 are installed on the wax injection machine. According to the specifications of the die head to be produced, the appropriate first sub-mold and second sub-mold are selected. The protrusion 26 is aligned with the end opening of the groove 13. By gradually inserting the protrusion 26 into the groove 13, the sub-mold 2 is gradually pushed into the installation space 11 of the female mold 1 to complete the installation of the sub-mold 2. The first female mold, the first sub-mold, the second female mold, the second sub-mold, and the lower template 3 are closed. The molten material is injected into the cavity through the flow channel, cooled and shaped to complete the production of the die head.

[0026] Example 2 This embodiment is the second embodiment of the mold for producing die heads according to this utility model. This embodiment is similar to the first embodiment, except that, as Figure 1 and Figure 3 As shown, it also includes a locking pin assembly 4 for locking the sub-mold 2 onto the mother mold 1. The locking pin assembly 4 has two sets, which are respectively connected between the first mother mold and the first sub-mold and between the second mother mold and the second sub-mold. After the protrusion 26 is inserted into the groove 13 and the sub-mold 2 is installed in place, the locking pin assembly 4 locks the sub-mold 2 onto the mother mold 1, preventing the sub-mold 2 from falling off and improving the stability of the mold operation.

[0027] like Figure 1 and Figure 3As shown, the locking pin assembly 4 includes a fixing member 41, an elastic member 42, and a pin 43 connected in sequence. The female mold 1 has a fixing hole 14 that can accommodate the elastic member 42 and the pin 43. The sub-mold 2 has an insertion hole 27. The fixing member 41 is installed in the fixing hole 14, and the pin 43 is inserted into the insertion hole 27. When installing the sub-mold 2, press the pin 43 to compress the elastic member 42 until the pin 43 and the elastic member 42 are completely pressed into the fixing hole 14. Then, install the sub-mold 2 into the installation space 11. The pin 43 is aligned with the insertion hole 27, and the locking pin assembly 4 is no longer compressed by external force. The elastic member 42 returns to its original position, driving the pin 43 to insert into the insertion hole 27, automatically locking the sub-mold 2. The operation is simple and can be completed without complicated tools, which helps to shorten the mold change time.

[0028] The outer edge of the sub-mold 2 is provided with a guide slope 25 for guiding the pin 43 into the fixing hole 14. When the sub-mold 2 is pushed into the mounting space 11 of the mother mold 1, the guide slope 25 contacts the pin 43 and gradually presses it into the fixing hole 14. When the fixing hole 14 and the pin 43 are aligned, the pin 43 automatically pops out under the action of the elastic element 42 and inserts into the insertion hole 27 to complete the locking. By setting the guide slope 25, the locking of the sub-mold 2 can be completed simply by pushing the sub-mold 2 into the mounting space 11, without the need for manual operation of the locking pin assembly 4, simplifying the mold changing operation, shortening the mold changing time, and improving work efficiency. In this embodiment, the outer edge of the sub-mold 2 is provided with a guide groove, and the guide slope 25 is set at the bottom of the guide groove. The guide slope 25 gradually slopes outward in a direction away from the edge of the sub-mold 2.

[0029] The outer wall of the fastener 41 is provided with an external thread, and the inner wall of the fixing hole 14 is provided with an internal thread that mates with the external thread. The fastener 41 is threadedly connected to the fixing hole 14. When it is necessary to unlock the sub-mold 2, the fastener 41 is unscrewed from the fixing hole 14, and the fastener 41 is pulled to pull the pin 43 into the fixing hole 14, thus unlocking the sub-mold 2 and further shortening the mold change time. At the same time, the initial position of the pin 43 can be finely adjusted by adjusting the screw-in depth, which improves the assembly flexibility.

[0030] In this embodiment, as Figure 3As shown, the elastic element 42 is a spring; the pin 43 includes a limiting part 431 and a plugging part 432, one end of the limiting part 431 is connected to the plugging part 432, and the other end is connected to the elastic element 42; the fixing hole 14 includes a fixing section 141 and a telescopic section 142, the diameter of the fixing section 141 is larger than the diameter of the telescopic section 142, the internal thread is provided on the inner wall of the fixing section 141, the limiting part 431 slides in the fixing section 141, and the diameter of the limiting part 431 is smaller than that of the fixing section 142. The equal diameter of 141 ensures stable movement of the pin 43, enabling precise insertion into the socket 27. The bottom of the fixed section 141 has a through hole communicating with the telescopic section 142. The diameter of the through hole is smaller than the diameter of the fixing member 41 and the limiting part 431. When the limiting part 431 abuts against the bottom of the fixed section 141, the insertion part 432 passes through the through hole and the telescopic section 142, and its end away from the limiting part 431 is located in the first sub-cavity 21 or the second sub-cavity 22.

[0031] The working principle of the mold used for producing mold heads in this embodiment is as follows: The first female mold, the second female mold, and the lower template 3 are installed on the wax injection machine. Appropriate first and second sub-molds are selected according to the required mold head specifications. The fixing member 41 is rotated to adjust its position in the fixing hole 14, thereby adjusting the initial position of the pin 43. The protrusion 26 is aligned with the end opening of the groove 13, and the sub-mold 2 is pushed into the installation space 11 of the female mold 1. During the pushing process, the guide slope 25 at the bottom of the guide groove contacts the pin 43 of the locking pin assembly 4. The distance between the contact point of the pin 43 and the guide slope 25 and the fixing hole 14 gradually decreases, the elastic member 42 gradually compresses, and the guide slope 25 gradually presses the pin 43 into the fixing hole 14. After the pin 43 disengages from the guide slope 25, the outer wall of the sub-mold 2 continues to press the pin 43, maintaining the compressed state of the locking pin assembly 4. The mold is in a state where the pin 43 is aligned with the insertion hole 27, the pin 43 is no longer in contact with the outer wall of the sub-mold 2, and is no longer under external pressure. Under the elastic force of the elastic element 42, it resets and is inserted into the insertion hole 27, locking the sub-mold 2 and completing the installation of the sub-mold 2. The first female mold, the first sub-mold, the second female mold, the second sub-mold and the lower template 3 are closed, and the molten material is injected into the cavity through the flow channel, cooled and shaped, completing the production of the mold head. When the sub-mold 2 needs to be replaced, the fixing element 41 is rotated to move the fixing element 41 outward until the fixing element 41 exits the fixing hole 14. The fixing element 41 is pulled outward, and the pin 43 is pulled by the elastic element 42, so that the pin 43 is disengaged from the insertion hole 27 and enters the fixing hole 14. The sub-mold 2 is unlocked. The sub-mold 2 is pulled to remove the sub-mold 2 from the installation space 11. The fixing element 41 is reinstalled, and the new sub-mold 2 is installed in the installation space 11 and locked, completing the mold replacement operation.

[0032] Example 3 This embodiment is the third embodiment of the mold for producing die heads according to this utility model. This embodiment is similar to embodiment two, except that, as Figure 1 and Figure 4 As shown, the inlet end of the flow channel is provided with a feed port, the diameter of which gradually decreases from the inlet end to the end connected to the feed port. The feed port can guide the molten material to be injected into the flow channel more smoothly.

[0033] like Figure 4 As shown, the first semi-channel 23 and the first sub-cavity 21 are independent of each other, as... Figure 1 As shown, the second semi-flow channel 24 is connected to the second sub-cavity 22. Since the first semi-flow channel 23 and the first sub-cavity 21 are independent of each other, after the molten material cools and solidifies in the flow channel, an easy-to-tear notch will be formed between the first semi-flow channel 23 and the first sub-cavity 21, which facilitates the removal of the solidified material from the die head product.

[0034] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mold for producing die heads, characterized in that, The system includes a master mold (1), a sub-mold (2), and a lower template (3). The master mold (1) has an installation space (11) on its inner wall. The sub-mold (2) is detachably installed in the installation space (11). There are two master molds (1), designated as the first master mold and the second master mold. There are two sub-molds (2), designated as the first sub-mold and the second sub-mold. The first master mold has a first female cavity (12) on its inner wall. The first sub-mold has a first female cavity (21) communicating with the first female cavity (12) on its inner wall. The second master mold has a second female cavity on its inner wall. The second sub-mold has a second female cavity (22) communicating with the second female cavity on its inner wall. The inner wall of the first sub-mold is provided with a first semi-flow channel (23), the inner wall of the second sub-mold is provided with a second semi-flow channel (24), and the top of the lower template (3) is provided with a core (31). When the mold is closed, the bottom of the mother mold (1) abuts against the top of the lower template (3), the inner walls of the first mother mold and the second mother mold abut against each other, the inner walls of the first sub-mold and the second sub-mold abut against each other, the first mother cavity (12), the second mother cavity, the first sub-cavity (21) and the second sub-cavity (22) are spliced ​​to form a cavity, the first semi-flow channel (23) and the second semi-flow channel (24) are spliced ​​to form a flow channel, the flow channel is connected to the cavity, and the core (31) is located in the cavity.

2. The mold for producing a die head according to claim 1, characterized in that, The master mold (1) is provided with a groove (13), and the end and top of the groove (13) are provided with openings. The sub-mold (2) is provided with a protrusion (26) that cooperates with the groove (13), and the protrusion (26) is inserted into the groove (13).

3. The mold for producing a die head according to claim 2, characterized in that, The groove (13) is a T-shaped groove, and the protrusion (26) is a T-shaped block.

4. The mold for producing a die head according to claim 2, characterized in that, The master mold (1), the sub-mold (2) and the lower template (3) are all lightweight alloy structures, and the protrusion (26) is a wear-resistant alloy structure.

5. The mold for producing a die head according to claim 2, characterized in that, It also includes a locking pin assembly (4) for locking the sub-mold (2) onto the mother mold (1), the locking pin assembly (4) having two sets, the two sets of the locking pin assembly (4) being respectively connected between the first mother mold and the first sub-mold and between the second mother mold and the second sub-mold.

6. The mold for producing a die head according to claim 5, characterized in that, The locking pin assembly (4) includes a fixing member (41), an elastic member (42), and a pin (43) connected in sequence. The female mold (1) is provided with a fixing hole (14) that can accommodate the elastic member (42) and the pin (43). The sub-mold (2) is provided with an insertion hole (27). The fixing member (41) is installed in the fixing hole (14), and the pin (43) is inserted into the insertion hole (27).

7. The mold for producing a die head according to claim 6, characterized in that, The outer edge of the sub-mold (2) is provided with a guide slope (25) for guiding the pin (43) to move into the fixing hole (14).

8. The mold for producing a die head according to claim 6, characterized in that, The outer wall of the fastener (41) is provided with an external thread, and the inner wall of the fixing hole (14) is provided with an internal thread that mates with the external thread. The fastener (41) is threadedly connected to the fixing hole (14).

9. The mold for producing a die head according to claim 1, characterized in that, The inlet end of the flow channel is provided with a feed port, and the diameter of the feed port gradually decreases from the inlet end to the end connected to the feed port.

10. The mold for producing a die head according to claim 9, characterized in that, The first half-channel (23) is independent of the first sub-cavity (21), and the second half-channel (24) is connected to the second sub-cavity (22).

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