Die structure for forging and forming water nozzle

Abstract

The utility model relates to the technical field of forging dies, in particular to a die structure for forging and forming a water nozzle, which comprises an upper die assembly and a lower die assembly, the upper die assembly is provided with an upper die plate and an upper die head which are fixedly connected with each other, and the lower die assembly is provided with a lower die plate and a lower die head which are fixedly connected with each other. An upper die groove is formed in the end, away from the upper die plate, of the upper die head, a lower die groove is formed in the end, away from the lower die plate, of the lower die head, and the upper die groove and the lower die groove are matched with each other to form a forging and pressing die cavity and a forging and pressing forming water nozzle body part. And a lower sinking hole is formed in the bottom of the groove of the lower die and is configured as a water inlet pipe part for forging and forming the water nozzle. In conclusion, one-time forging forming of the multi-directional protrusions of the water nozzle is achieved through the directional forming structure, and the die structure is simplified; the discharging stability is improved through the elastic ejection design; the multi-stage guide system guarantees the die assembly precision, so that the efficiency is improved, the cost is reduced, and the forging quality and size qualification rate are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of forging dies, and in particular to a die structure for forging water taps. Background Technology

[0002] Forging is a general term for forging and stamping. It is a forming process that uses the hammer, anvil, punch or die of forging machinery to apply pressure to the blank, causing it to undergo plastic deformation, thereby obtaining the part of the required shape and size.

[0003] Die forging is a forming method in which a metal billet is plastically deformed within a die cavity by the cooperation of upper and lower dies. The die is usually composed of upper and lower modules, fixed to the equipment by dovetail blocks and wedges, and guided by latches or guide pillars to prevent misalignment. This technology is widely used in the mass production of ductile parts such as metals, but its limitation is that for parts with multi-directional protrusions (such as faucets), the traditional upper and lower die structure is difficult to form multiple protrusions in different directions at once, requiring multi-stage die separation or complex die structures, resulting in high die costs and low production efficiency.

[0004] The challenge of forming multi-directional protrusions: Water tap products often include lateral protrusions (such as long and short round tubes) extending along the parting surface and longitudinal protrusions (such as water inlet pipes) perpendicular to the parting surface. Traditional molds require multiple sets of movable modules or side molds to achieve multi-directional extrusion, resulting in complex structures and easy forging dimensional deviations due to insufficient mold closing accuracy.

[0005] Low material feeding efficiency: After forging, the forging is easily stuck in the lower die groove. Traditional ejector structures rely on a single rigid ejector rod, which lacks elastic buffering and may damage the forging or affect the stability of the ejector.

[0006] Insufficient guiding accuracy: Simple guiding structures (such as a single guide post) have low positioning accuracy in the initial stage of mold closing, which can easily lead to misalignment of the upper and lower molds and affect the forming quality of the forging. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0008] This utility model provides a mold structure for forging a water tap, including an upper mold assembly and a lower mold assembly. The upper mold assembly has an upper template and an upper mold head fixedly connected to each other, and the lower mold assembly has a lower template and a lower mold head fixedly connected to each other. The upper mold head has an upper mold groove at the end away from the upper template, and the lower mold head has a lower mold groove at the end away from the lower template. The upper mold groove and the lower mold groove cooperate with each other to form a forging mold cavity, and forge the main body of the water tap. The bottom of the lower mold groove has a recessed hole, which is configured to forge the water inlet pipe part of the water tap.

[0009] Furthermore: the lower die head is provided with a long through hole corresponding to the position of the sinkhole, the lower die plate is provided with a sinkhole corresponding to the position directly below the long through hole, and a material ejector is provided in the sinkhole. One end of the material ejector passes through the sinkhole and the other end passes through the long through hole and extends into the sinkhole, and seals the bottom of the sinkhole.

[0010] Furthermore, a blanking block is also provided inside the lower die countersunk hole. The blanking block passes through the lower die countersunk hole and abuts against the end of the blanking ejector rod away from the lower die countersunk hole. Specifically, to ensure the stable positioning of the blanking ejector rod, a blanking block is provided inside the lower die countersunk hole. One end of the blanking block abuts against the blanking ejector rod, and the other end abuts against the worktable of the external forging equipment, thereby fixing the position of the blanking ejector rod.

[0011] Furthermore, an elastic element is provided between the blanking block and the blanking ejector rod. The elastic force of the elastic element drives the blanking ejector rod to move a certain distance towards the downward countersunk hole, thereby performing an upward ejection operation on the forging workpiece in the forging die cavity.

[0012] Furthermore: the upper mold groove is provided with an upper elongated oval groove, and the lower mold groove is provided with a lower elongated oval groove. The upper mold elongated oval groove and the lower mold elongated oval groove cooperate with each other to forge and form the elongated tube part of the water nozzle.

[0013] Furthermore: the upper mold groove is provided with an upper mold short circular groove, and the lower mold groove is provided with a lower mold short circular groove. The upper mold short circular groove and the lower mold short circular groove cooperate with each other to forge and form the short circular tube part of the water nozzle.

[0014] Furthermore, the upper die head has guide protrusions at its four corners, and the lower die head has guide notches at its four corners. The guide protrusions and guide notches cooperate with each other to guide the forging action.

[0015] Furthermore: the top of the guide protrusion is provided with a guide post, and the bottom of the guide notch is provided with a guide sleeve. The guide post and the guide sleeve cooperate with each other to guide the upper die head and the lower die head to be aligned at the center.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Simplified mold structure and optimized forging process: By cleverly designing the upper mold groove, lower mold groove, and the recessed hole at the bottom of the lower mold groove, the main body of the water nozzle and protrusions in different directions can be forged in one go. The protrusions extending along the parting surface are forged by the cooperation of the upper and lower mold grooves, while the water inlet pipe part perpendicular to the parting surface is forged using the recessed hole. This design avoids the use of complex multi-directional mold structures, simplifying the mold design and manufacturing process.

[0018] 2. Improve forging efficiency: Since the forging of the main body of the water nozzle and multiple protrusions can be completed in one go, the number of forging times is reduced, the production cycle is shortened, and the forging efficiency is significantly improved.

[0019] 3. Facilitates material unloading: The unloading ejector rod passes through the long through hole and extends into the recessed hole. After forging is completed, the unloading ejector rod is used to push the water inlet pipe part of the forging (water nozzle) upward, so that it is disengaged from the lower die groove to a certain extent, which facilitates clamping and unloading, and simplifies the unloading process.

[0020] 4. Assisted forging demolding: An elastic element is installed between the blanking block and the blanking ejector pin. The elastic force of the elastic element drives the blanking ejector pin to move upward, pushing the forging upward and assisting the forging to detach from the forging die cavity, thus improving the smoothness of demolding. At the same time, the elastic element is compressed during the forging process, forming an elastic support, and under the action of metal pressure, it causes the blanking ejector pin to move downward, forming the water inlet cavity, thus serving both a support and forming function.

[0021] With the above improvements, this utility model achieves one-time forging of multi-directional protrusions in water nozzles through a split-direction forming structure, simplifying the mold structure; the elastic ejector design improves the stability of material feeding; and the multi-level guiding system ensures the accuracy of mold closing, thereby improving efficiency, reducing costs, and improving the quality and dimensional qualification rate of forgings.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the upper mold assembly and the lower mold assembly of this utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of the upper and lower mold heads of this utility model;

[0026] Figure 3 This is a cross-sectional schematic diagram of the ejector pin of this utility model in the ejected state;

[0027] Figure 4 This is a schematic diagram of the lower mold groove and the recessed hole of this utility model;

[0028] Figure 5This is a schematic diagram of the upper mold groove of this utility model;

[0029] Figure 6 This is a structural schematic diagram of the water tap forging of this utility model.

[0030] The reference numerals and names in the figure are as follows:

[0031] 10 Upper mold assembly; 11 Guide plate; 12 Upper template; 13 Upper mold head; 14 Guide protrusion; 15 Guide post; 20 Upper mold groove; 21 Upper mold elongated groove; 22 Upper mold short groove; 30 Lower mold assembly; 31 Lower template; 32 Lower mold countersunk hole; 33 Material ejector pin; 34 Material ejector block; 35 Elastic component; 40 Lower mold head; 41 Long through hole; 42 Guide notch; 43 Guide sleeve; 50 Lower mold groove; 51 Countersunk hole; 52 Lower mold elongated groove; 53 Lower mold short groove; 60 Water nozzle body; 61 Water inlet pipe; 62 Elongated pipe; 63 Short pipe. Detailed Implementation

[0032] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Please see Figures 1 to 6 In this embodiment of the present invention, a mold structure for forging a water tap includes an upper mold assembly 10 and a lower mold assembly 30. The upper mold assembly 10 is provided with an upper template 12 and an upper mold head 13 fixedly connected to each other. The lower mold assembly 30 is provided with a lower template 31 and a lower mold head 40 fixedly connected to each other. The upper mold head 13 is provided with an upper mold groove 20 at one end away from the upper template 12, and the lower mold head 40 is provided with a lower mold groove 50 at one end away from the lower template 31. The upper mold groove 20 and the lower mold groove 50 cooperate with each other to form a forging mold cavity, and forge the main body of the water tap. The bottom of the lower mold groove 50 is provided with a recessed hole 51, which is configured as the water inlet pipe 61 part of the forged water tap.

[0034] Specifically, die forging refers to a forging method that uses a die on specialized die forging equipment to shape a blank into a forging. Die forging typically consists of two modules, upper and lower, with the die cavity being the working part, each comprising half of the die. Dovetail blocks and wedges are used to fix the die to the anvil and worktable; and locking mechanisms or guide posts prevent misalignment of the upper and lower modules, allowing the metal blank to deform according to the shape of the die cavity. However, for faucet products with protrusions in multiple directions, a key technical challenge is how to design a single forging process that allows multiple protrusions in different directions to be formed within a simple upper and lower module structure.

[0035] This invention connects the upper mold groove 20 and the lower mold groove 50 to form a forging mold cavity, thereby forging the main body 60 of the water nozzle. In particular, the multiple protrusions extending along the parting surface are forged by the upper mold groove 20 and the lower mold groove 50. The protrusions perpendicular to the parting surface are formed by setting a sinkhole 51 at the bottom of the lower mold groove 50. The sinkhole 51 is used to forge the vertical protrusions, thereby simplifying the structure of the forging mold, optimizing the forging process, and improving the forging efficiency.

[0036] like Figure 2 and Figure 3 As shown, preferably, the lower die head 40 is provided with a long through hole 41 corresponding to the position of the lower recess 51, and the lower die template 31 is provided with a lower die recess 32 corresponding to the position directly below the long through hole 41. A material ejector rod 33 is provided in the lower die recess 32. One end of the material ejector rod 33 passes through the lower die recess 32, and the other end passes through the long through hole 41 and extends down to the lower recess 51, and seals the bottom of the lower recess 51.

[0037] Specifically, after the forging is completed, the upper die assembly 10 is lifted with the hammer head, and the forging is left in the lower die groove 50 due to cooling shrinkage or structural jamming. In order to facilitate the unloading of the forging, a unloading push rod 33 is preferably provided to push the forging from below, so that it is removed from the lower die groove 50 to a certain extent, so that it can be clamped and moved for unloading.

[0038] Secondly, due to the design of the recessed hole 51, in order to further simplify the mold structure, it is preferable to set a long through hole 41 and a lower mold recessed hole 32 at the position corresponding to the recessed hole 51. Then, the ejector rod 33 passes through the long through hole 41 and extends into the recessed hole 51, so as to perform an upward ejection operation on the water inlet pipe 61 of the water nozzle, thereby completing the unloading operation of the forging.

[0039] At the same time, the end of the feeding rod 33 extends into the sinkhole 51, which forms a blockage at the bottom of the sinkhole 51, thereby supporting and restricting the forging of the water inlet pipe 61 of the water nozzle, so that its forging dimensions meet the production requirements.

[0040] like Figure 2 and Figure 3 As shown, preferably, a material feeding block 34 is also provided in the lower die countersunk hole 32. The material feeding block 34 passes through the lower die countersunk hole 32 and abuts against the end of the material feeding ejector rod 33 away from the lower die countersunk hole 51.

[0041] Specifically, to ensure the stable positioning of the ejector pin 33, an ejector block 34 is installed in the countersunk hole 32 of the lower die. One end of the ejector block 34 abuts against the ejector pin 33, and the other end abuts against the worktable of the external forging equipment, thereby fixing the position of the ejector pin 33.

[0042] Secondly, it is understandable that the lower die assembly 30 is installed on the worktable of the external forging equipment via the lower template 31, while the upper die assembly 10 is installed on the hammer head component of the external forging equipment via the upper template 12.

[0043] like Figure 2 and Figure 3 As shown, preferably, an elastic element 35 is provided between the unloading block 34 and the unloading ejector rod 33. The elastic force of the elastic element 35 drives the unloading ejector rod 33 to move a certain distance towards the downward countersunk hole 51, thereby performing an upward ejection operation on the forging in the forging die cavity.

[0044] Specifically, in order for the ejector pin 33 to smoothly push the forging after the mold is opened, it is preferable to set an elastic element 35 between the ejector pin 33 and the ejector block 34, and use its elasticity to push the forging, assisting the forging to leave the forging die cavity and wait for the unloading operation.

[0045] Secondly, the end of the ejector pin 33 is fitted with the bottom of the recessed hole 51 with a clearance, initially sealing the recessed hole 51. During forging, the metal pressure causes the ejector pin 33 to move downward, forming the cavity of the water inlet pipe 61. That is, during the forging process, the upper die assembly 10 is driven downward by the hammer part of the external forging equipment, causing the metal billet to undergo corresponding plastic deformation under the extrusion of the upper die groove 20 and the lower die groove 50, thus forming a preset shape. During the plastic deformation process, a part of the metal part is squeezed into the recessed hole 51 and pushes the ejector pin 33 downward, causing the elastic element 35 to be compressed by a certain stroke, so that the ejector pin 33 moves downward a certain distance and abuts against the ejector block 34, thus forming a rigid connection, allowing the ejector pin 33 to withstand the deformation pressure of the metal billet and form the water inlet pipe 61 part of the water nozzle.

[0046] In addition, the elastic element 35 is preferably a rectangular helical spring, which has higher stiffness, greater energy absorption capacity and more stable linear characteristic line, making it easier to lift the forging.

[0047] like Figure 4 and Figure 5 As shown, preferably, the upper mold groove 20 is provided with an upper mold elongated groove 21, and the lower mold groove 50 is provided with a lower mold elongated groove 52. The upper mold elongated groove 21 and the lower mold elongated groove 52 cooperate with each other to forge and form the elongated tube 62 part of the water nozzle.

[0048] Specifically, in the extension direction parallel to the parting surface, the water nozzle is also provided with an elongated tube 62. Therefore, in order to forge the elongated tube 62, an upper die elongated groove 21 and a lower die elongated groove 52 can be provided on the upper die head 13 and the lower die head 40 respectively, and they can cooperate with each other to form a corresponding forging die cavity, thereby forging the elongated tube 62.

[0049] like Figure 4 and Figure 5 As shown, preferably, the upper mold groove 20 is provided with an upper mold short circular groove 22, and the lower mold groove 50 is provided with a lower mold short circular groove 53. The upper mold short circular groove 22 and the lower mold short circular groove 53 cooperate with each other to forge and form the short circular tube 63 part of the water nozzle.

[0050] Similarly, a short round tube 63 is provided on the water nozzle in the extension direction parallel to the parting surface. Therefore, in order to forge the short round tube 63, an upper die short round groove 22 and a lower die short round groove 53 can be provided on the upper die head 13 and the lower die head 40 respectively, and they can cooperate with each other to form a corresponding forging die cavity, thereby forging the short round tube 63.

[0051] like Figures 3 to 5 As shown, preferably, the four corners of the upper die head 13 are provided with guide protrusions 14, and the four corners of the lower die head 40 are provided with guide notches 42. The guide protrusions 14 and guide notches 42 cooperate with each other to guide the forging action.

[0052] Specifically, in order to make the upper die head 13 and the lower die head 40 more accurately positioned during the forging process, guide protrusions 14 and guide notches 42 can be set respectively to guide the upper die head 13 and assist in completing the forging action.

[0053] like Figures 3 to 5 As shown, preferably, the top of the guide protrusion 14 is provided with a guide post 15, and the bottom of the guide notch 42 is provided with a guide sleeve 43. The guide post 15 and the guide sleeve 43 cooperate with each other to guide the upper die head 13 and the lower die head 40 to be aligned at the center.

[0054] Specifically, in order to further ensure that the upper die head 13 and the lower die head 40 can maintain center alignment during the die closing and forging process, it is preferable to set guide pillars 15 and guide sleeves 43 respectively. The guide pillars 15 are inserted into the guide sleeves 43 to form a limit, thereby guiding the upper die assembly 10 and the lower die assembly 30 to maintain center alignment during the die closing process.

[0055] like Figure 1 and Figure 1 As shown, preferably, the upper mold assembly 10 and the lower mold assembly 30 are respectively provided with guide plates 11. The guide plates 11 are provided with openings corresponding to the upper mold head 13 and the lower mold head 40, so that the upper mold head 13 and the lower mold head 40 move with the corresponding guide plates 11 and maintain a preset moving position.

[0056] In particular, before the guide post 15 and guide sleeve 43 are connected, they do not yet play a guiding role. Therefore, the guide plate 11 is needed to guide or limit the position of the upper die head 13 and the lower die head 40 to ensure that their positions are kept in the preset correct positions and improve the forging accuracy. That is, the guide plate 11 performs coarse positioning of the upper and lower dies in the initial stage of die closing, and achieves precise positioning after the guide post 15 is inserted into the guide sleeve 43 and the guide protrusion 14 is embedded in the guide notch 42.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A mold structure for forging a water tap, characterized in that, The assembly includes an upper mold assembly (10) and a lower mold assembly (30). The upper mold assembly (10) is provided with an upper template (12) and an upper mold head (13) fixed to each other. The lower mold assembly (30) is provided with a lower template (31) and a lower mold head (40) fixed to each other. The upper mold head (13) is provided with an upper mold groove (20) at one end away from the upper template (12), and the lower mold head (40) is provided with a lower mold groove (50) at one end away from the lower template (31). The upper mold groove (20) and the lower mold groove (50) cooperate with each other to form a forging mold cavity, which is used to forge the main body of the water nozzle. The bottom of the lower mold groove (50) is provided with a sinkhole (51), which is configured as the water inlet pipe (61) part of the forged water nozzle.

2. The mold structure for forging a water tap according to claim 1, characterized in that, The lower die head (40) is provided with a long through hole (41) corresponding to the position of the sinkhole (51). The lower die plate (31) is provided with a lower die sinkhole (32) directly below the long through hole (41). A material ejector rod (33) is provided in the lower die sinkhole (32). One end of the material ejector rod (33) passes through the lower die sinkhole (32), and the other end passes through the long through hole (41) and extends down to the sinkhole (51) to seal the bottom of the sinkhole (51).

3. The mold structure for forging a water tap according to claim 2, characterized in that, The lower die countersunk hole (32) is also provided with a material feeding block (34). The material feeding block (34) passes through the lower die countersunk hole (32) and abuts against the end of the material feeding ejector (33) away from the lower die countersunk hole (51). Specifically, in order to ensure the stable positioning of the material feeding ejector (33), a material feeding block (34) is provided in the lower die countersunk hole (32). One end of the material feeding block (34) abuts against the material feeding ejector (33), and the other end abuts against the worktable of the external forging equipment, thereby fixing the position of the material feeding ejector (33).

4. The mold structure for forging a water tap according to claim 3, characterized in that, An elastic element (35) is provided between the blanking block (34) and the blanking ejector (33). The elastic force of the elastic element (35) drives the blanking ejector (33) to move a certain distance towards the downward countersunk hole (51), thereby performing an upward ejection operation on the forging in the forging die cavity.

5. The mold structure for forging a water tap according to claim 1, characterized in that, The upper mold groove (20) is provided with an upper mold elongated oval groove (21), and the lower mold groove (50) is provided with a lower mold elongated oval groove (52). The upper mold elongated oval groove (21) and the lower mold elongated oval groove (52) cooperate with each other to forge and form the elongated tube (62) part of the water nozzle.

6. The mold structure for forging a water tap according to claim 1, characterized in that, The upper mold groove (20) is provided with an upper mold short circular groove (22), and the lower mold groove (50) is provided with a lower mold short circular groove (53). The upper mold short circular groove (22) and the lower mold short circular groove (53) cooperate with each other to forge and form the short circular tube (63) part of the water nozzle.

7. The mold structure for forging a water tap according to claim 1, characterized in that, The upper die head (13) is provided with guide protrusions (14) at the four corners, and the lower die head (40) is provided with guide notches (42) at the four corners. The guide protrusions (14) and guide notches (42) cooperate with each other to guide the forging action.

8. The mold structure for forging a water tap according to claim 7, characterized in that, The top of the guide protrusion (14) is provided with a guide post (15), and the bottom of the guide notch (42) is provided with a guide sleeve (43). The guide post (15) and the guide sleeve (43) cooperate with each other to guide the upper die head (13) and the lower die head (40) to be aligned.

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