A precise forming mold for a watch buckle

Abstract

The present application belongs to the field of watch mould, and proposes a precise forming mould for watch buckle, which comprises an upper mould, a lower mould, an upper die holder and a lower die holder, the outer side of the lower die holder is provided with an automatic feeding model and an adjusting assembly; the lower mould comprises a first blank cavity, a second blank cavity, a first female die and a second female die, the upper mould comprises a first blank contour punching cutter, a second blank contour punching cutter, a first male die and a second male die, the first female die is matched with the first male die for stamping and is used for forming a buckle inlay, the second female die is matched with the second male die for stamping and is used for forming a buckle inlay shell; the upper die holder is provided with a material withdrawing mechanism vertically movably matched therewith. The present application is reasonable in design, convenient for automatic feeding, capable of producing a new type of hollow buckle, capable of realizing double-stamping forming and being beneficial to ensuring the quality of the buckle, and is suitable for large-scale promotion.

Description

Technical Field

[0001] This invention belongs to the field of watch molds, and in particular relates to a precision forming mold for watch buckles. Background Technology

[0002] The clasp is the movable part of a watch strap, primarily used to secure the watch and ensure it stays firmly on the wrist. Clasps can be broadly categorized into pin buckles, folding clasps, adjustable clasps, butterfly clasps, sliding clasps, and nylon buckles. Aside from punching holes, the main manufacturing process for clasps involves stamping.

[0003] Stamping is an operation in the machining field where safety is paramount. Due to the small size of watch buckles, the blanks used are also relatively small. Most workshops use manual feeding, which is inefficient and increases the probability of safety hazards. Furthermore, most watch buckle dies are single-stamp dies, requiring secondary clamping after stamping to remove excess material, increasing the number of workpiece turnovers. Errors in this secondary clamping can affect the buckle's accuracy and quality, making it difficult to meet the requirements of mass production. Secondly, while existing watch buckle dies produce buckles of various shapes, they are all solid products. Using screws to fix the buckle's shaft end requires a through-hole design. Unless a spring pin is used as the connecting shaft, a concealed connection is difficult to achieve. Common problems with spring pins as connecting shafts include easy deformation and short service life. Summary of the Invention

[0004] This invention addresses the technical problems existing in the aforementioned watch buckle molds by proposing a precision forming mold for watch buckles that is reasonably designed, facilitates automatic feeding, can produce new hollow watch buckles, can achieve double-punch forming, and helps ensure the quality of the watch buckles.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention provides a precision forming mold for watch buckles, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are respectively disposed on an upper mold base and a lower mold base, an automatic feeding model is disposed on the outer side of the lower mold base, and feeding ports for feeding are disposed on the left and right sides of the automatic feeding model, and multiple adjusting components for adjusting the center position of the lower mold base are disposed on the side of the automatic feeding model; the lower mold includes a first blank cavity and a second blank cavity arranged alternately on the left and right sides, a first blank cavity is disposed in the first blank cavity at a level lower than its top, and a second blank cavity is disposed in the second blank cavity at a level lower than its top; the upper mold includes... A first blank contour cutting cutter and a second blank contour cutting cutter are staggered on the left and right. The first blank contour cutting cutter has a first punch inside, and the second blank contour cutting cutter has a second punch inside. The first die and the first punch are stamped together to form a watch buckle insert, and the second die and the second punch are stamped together to form a watch buckle shell. The upper die base is provided with a material ejection mechanism that is vertically movable therewith. The material ejection mechanism includes a fixed sleeve. The bottom of the fixed sleeve is provided with ejection cutters located between the first blank contour cutting cutter and the first punch and between the second blank contour cutting cutter and the second punch. The upper die base is provided with an inlet and outlet for relative displacement between the ejection cutter and the upper die base.

[0006] Preferably, the thickness of the first punch is greater than the depth of the first die, and the thickness of the second punch is greater than the depth of the second die.

[0007] Preferably, both the first punch and the second punch are H-shaped structures with arches. The ejector tool is mounted on a tool holder, which is fixedly connected to a fixed sleeve. The ejector tool mates with the H-shaped openings of the first punch and the second punch. The thickness of the ejector tool located between the first blank contour cutting tool and the first punch is equal to the gap width between the first blank contour cutting tool and the first punch. The thickness of the ejector tool located between the second blank contour cutting tool and the second punch is equal to the gap width between the second blank contour cutting tool and the second punch.

[0008] Preferably, the upper die base is provided with a gas ring sleeve that is nested and fitted therewith. The gas ring sleeve is synchronously connected to a plurality of air channels provided inside the upper die base. The air outlets of the air channels are located between the first blank contour punching cutter and the first punch, and between the second blank contour punching cutter and the second punch.

[0009] Preferably, the bottom surface of the upper mold base and the top surface of the lower mold base are both circular, and the diameter of the circle is greater than the maximum diagonal length of the first blank cavity and the second blank cavity, and the area of ​​the circle is greater than the sum of the areas of the first blank cavity and the second blank cavity.

[0010] Preferably, a pair of support blocks are provided on both sides above the feed port, a shaping plate is provided on the support blocks, and multiple slots are provided at the bottom of the shaping plate, with pressure plates provided in the slots.

[0011] Preferably, the shaping plate has a pair of screw holes near its end, and an elastic support arm connected to the screw holes by screws is provided above the screw holes. The elastic support arm has a Z-shaped structure and its end faces the stamping direction of the upper and lower die bases.

[0012] Preferably, the end of the elastic support arm is provided with a bullseye ball bearing and a rolling roller, the length of which is greater than the diameter of the bullseye ball bearing.

[0013] Preferably, vent holes are provided between the first blank cavity and the first die cavity, and between the second blank cavity and the second die cavity.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0015] This invention provides a precision forming mold for watch clasps. By employing a double-punch design for the upper and lower dies, it enables the cutting and stamping of the blank from the material, reducing the number of workpiece turnovers and widening the material loading area. It allows for automatic feeding and unloading, ensuring high safety, improving production efficiency, and guaranteeing product quality. The inner cavity formed by the nested stamped clasp insert and clasp shell allows for concealed installation of the screw at the end of the pivot hole, contributing to the clasp's aesthetics and lifespan. This invention is rationally designed, facilitates automatic feeding, can produce novel hollow clasps, achieves double-punch forming, and ensures clasp quality, making it suitable for large-scale promotion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view of a precision molding die and material for a watch buckle provided in an embodiment;

[0018] Figure 2 A perspective view of a precision molding die and material for a watch buckle provided in an embodiment;

[0019] Figure 3 A side view of a precision molding die for a watch buckle provided in an embodiment;

[0020] Figure 4 for Figure 3 A cross-sectional view of a precision molding die for a watch buckle along the AA direction;

[0021] Figure 5 A top view of a precision molding die for a watch buckle provided in an embodiment;

[0022] Figure 6 A bottom view of a precision molding die for a watch buckle provided in an embodiment;

[0023] Figure 7 A perspective view of the lower mold base and lower mold provided for the embodiment;

[0024] Figure 8 A top view of the lower mold base and lower mold provided for the embodiment;

[0025] Figure 9 A bottom view of the upper mold base and upper mold provided for an embodiment;

[0026] Figure 10 A perspective view of the material ejection mechanism provided in the embodiment;

[0027] Figure 11 A perspective view of the buckle provided for an embodiment;

[0028] In the above figures: 1. Upper mold; 11. First blank contour punching cutter; 12. Second blank contour punching cutter; 13. First punch; 14. Second punch; 2. Lower mold; 21. First blank cavity; 22. Second blank cavity; 23. First die; 24. Second die; 3. Upper mold base; 31. Inlet / outlet; 32. Air ring sleeve; 33. Air passage; 4. Lower mold base; 41. Exhaust hole; 5. Automatic feeding mold; 51. Feed port; 52. Support block; 53. Shaping plate; 54. Pressure plate; 55. Elastic support arm; 56. Bullseye ball bearing; 57. Rolling roller; 6. Adjustment component; 7. Snap fastener; 71. Snap fastener insert; 72. Snap fastener housing; 8. Unloading mechanism; 81. Fixing sleeve; 82. Unloading cutter; 83. Cutting tool holder; 9. Material. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0030] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0031] Examples, such as Figures 1-11 As shown, the present invention provides a precision forming mold for watch buckles, comprising an upper mold 1 and a lower mold 2, wherein the upper mold 1 and the lower mold 2 are respectively disposed on an upper mold base 3 and a lower mold base 4. An automatic feeding model 5 is disposed on the outer side of the lower mold base 4, and feeding ports 51 for feeding are disposed on the left and right sides of the automatic feeding model 5. Multiple adjusting components 6 for adjusting the center position of the lower mold base 4 are disposed on the side of the automatic feeding model 5. The lower mold 2 includes a first blank cavity 21 and a second blank cavity 22 arranged alternately on the left and right sides. A first die 23 lower than the top level is disposed in the first blank cavity 21, and a second die 24 lower than the top level is disposed in the second blank cavity 22. The upper mold 1 includes a first blank contour cutting blade 11 arranged alternately on the left and right sides. The first blank contour cutting cutter 11 has a first punch 13 inside, and the second blank contour cutting cutter 12 has a second punch 14 inside. The first die 23 is stamped and fitted with the first punch 13 to form a watch buckle insert 71, and the second die 24 is stamped and fitted with the second punch 14 to form a watch buckle insert 72. The upper die base 3 is provided with a material ejection mechanism 8 that is vertically movable therewith. The material ejection mechanism 8 includes a fixed sleeve 81. The bottom of the fixed sleeve 81 is provided with a material ejection cutter 82 located between the first blank contour cutting cutter 11 and the first punch 13 and between the second blank contour cutting cutter 12 and the second punch 14. The upper die base 3 is provided with an inlet / outlet 31 for relative displacement between the material ejection cutter 82 and the upper die base 3.

[0032] Specifically, the automatic feeding model 5 is installed on the platform of the stamping machine, with two feeding ports 51 on its left and right sides corresponding to each other. The material 9 can step through the feeding ports 51 under the action of traction. During the stamping process, the material 9 remains stationary until the stamping action is completed. This invention uses a double-punching operation method to manufacture watch buckles and is used to produce hollow watch buckles 7. The watch buckle insert 71 and watch buckle shell 72 required for the hollow watch buckle are stamped from blanks of different areas. These two blanks of different areas are both punched from the same material 9 at staggered positions. This can improve the utilization rate of the material 9 on the one hand, and ensure that the material 9 has sufficient width to avoid deformation due to uneven tension on the other hand.

[0033] Furthermore, the stamping actions of the upper mold 1 and the lower mold 2 provided by the present invention can directly correspond to the material 9 between them. The lower mold 2 is installed on the lower mold base 4 and its position remains fixed. The inner walls of the first blank cavity 21 and the second blank cavity 22 of the lower mold 2 are sprayed with a release agent. The upper mold 1 is installed on the stamping lifting end of the stamping machine, and the material 9 is stamped by the lifting action. The first blank contour cutting blade 11 contacts the material 9 and cuts the blank for stamping the watch buckle insert 71 along the first blank cavity 21. The second blank contour cutting blade 12 contacts the material 9 and cuts the blank for stamping the watch buckle insert 71 along the second blank cavity 22. The blank 2 is punched down; the upper die 1 continues to punch down, which can press one piece of blank into the first concave die 23 and the first convex die 13 until it is formed, and the other piece of blank is pressed into the second concave die 24 and the second convex die 14 until it is formed; the upper die 1 rises and carries the formed buckle insert 71 and buckle shell 72 up away from the lower die 2. Before the upper die 1 is about to be in place, the bottom end of the ejector mechanism 8 contacts the buckle insert 71 and buckle shell 72. When the upper die 1 is fully reset, the ejector mechanism 8 pushes the buckle insert 71 and buckle shell 72 out and away from the upper die 1. The stamped workpiece is picked up by the movable chute matched with the stamping machine.

[0034] This invention provides a precision forming mold for watch buckles, more specifically a double-punch forming mold for hollow watch buckles. The upper mold 1 and lower mold 2, with their double-punch design, enable the cutting and stamping of blanks from material 9, reducing the number of workpiece turnovers and widening the specific loading area of ​​material 9. Automatic loading and unloading are possible, ensuring high safety, improving production efficiency, and guaranteeing product quality. The inner cavity formed by the stamped buckle insert 71 and buckle housing 72 can be used to conceal the screw / nut at the end of the connecting shaft. The periphery of the buckle housing 72 and the periphery of the buckle insert 71 can be perpendicularly abutted. The tenon of the connecting shaft / hinge at the end of the buckle 7 passes through the eye located inside the buckle housing 72. The screw / nut limits the two ends of the connecting shaft from inside the buckle housing 72. The buckle insert 71 is then pressed onto the buckle housing 72, which helps maintain the aesthetics of the buckle, facilitates secondary maintenance and repair, and ensures the actual service life of the new product. This invention provides a hollow watch buckle produced by a precision forming mold for watch buckles. The material 9 used for the buckle 7 is thinner than that of a solid watch buckle. After the nesting relationship is established, the hollow watch buckle can ensure that, on the basis of the same or smaller mass, it forms a pressure-resistant surface distributed around the nesting surface, which has a certain compressive strength. Furthermore, the hollow thickness of the buckle insert 71 and the buckle shell 72 after nesting is kept within a reasonable value, such as 1-2mm, which has a certain resistance to deformation. According to the design requirements of the entire watch buckle, the buckle product corresponding to this invention is one of the components of the whole buckle. In order to form a snap-fit ​​relationship with other components, such as the butterfly buckle with two protrusions in the middle, which facilitates the snap-fit ​​and fixation of the folding buckle, the second concave mold 24 and the second convex mold 14 corresponding to the buckle insert 71 can have corresponding surface designs.

[0035] To improve the ejection efficiency of stamped parts, the thickness of the first punch 13 provided by the present invention is greater than the depth of the first die 23, and the thickness of the second punch 14 is greater than the depth of the second die 24. This ensures that the blank is fully and completely formed on the first punch 13 and the second punch 14, and also provides sufficient ejection allowance for the ejector blade 82, so that the ejector blade 82 can move along the top allowance of the first punch 13 and the second punch 14 until the stamped part is ejected.

[0036] To ensure product quality, the first punch 13 and the second punch 14 provided in this invention are both arched H-shaped structures. The ejector blade 82 is mounted on the tool holder 83, which is fixedly connected to the fixed sleeve 81. The fixed sleeve 81 is fixedly connected to the frame / body of the stamping machine via a connecting rod. The interior of the fixed sleeve 81 and the upper die holder 3 can move up and down relative to each other. The ejector blade 82 mates with the H-shaped opening of the first punch 13 and the H-shaped opening of the second punch 14. Each ejector blade 82 has a width of 2-5mm. The thickness of the ejector blade 82 located between the first blank contour cutting blade 11 and the first punch 13 is equal to the gap between the first blank contour cutting blade 11 and the first punch 13. The thickness of the ejector blade 82 located between the second blank contour cutting blade 12 and the second punch 14 is equal to the gap between the second blank contour cutting blade 12 and the second punch 14. The first punch 13 and the second punch 14 are designed with the appearance of hollow buckles. Designing the ejection contact node at the H-shaped opening of the first punch 13 and the second punch 14 helps to improve the uniformity of ejection pressure and ensure the synchronous demolding of both sides of the stamped part. The tool holder 83 provides a mounting base for the ejection tool 82. The ejection tool 82 can be fixed to the tool holder 83 with countersunk screws. The tool holder 83 has multiple holes for connection, providing the ejection tool 82 with a margin for fine-tuning. The tool holder 83 also provides the ejection tool 82 with a path to cooperate with the upper die holder 3, so that the ejection tool 82 can enter the ejection gap in an orderly manner after the upper die holder 3 rises. The thickness of the ejection tool 82 ensures that its two sides fully fit the gap between the first blank contour punching tool 11 and the first punch 13, and the gap between the second blank contour punching tool 12 and the second punch 14, avoiding obvious deformation and pits at the ejection node of the stamped part, which helps to ensure the quality of the stamped part.

[0037] Furthermore, the upper die base 3 provided by the present invention is provided with a gas ring sleeve 32 that is nested and cooperates with it. The gas ring sleeve 32 is synchronously connected with a plurality of air channels 33 disposed inside the upper die base 3. The air outlets of the air channels 33 are disposed between the first blank contour punching cutter 11 and the first punch 13 and between the second blank contour punching cutter 12 and the second punch 14. An air nozzle is provided on the outer side of the gas ring sleeve 32 for connecting to an air source. The air source provides a certain air pressure through the gas ring sleeve 32 and all the air channels 33. On the one hand, it can assist the ejector cutter 82 in making the stamped part have a balanced force around the ejection. On the other hand, it can treat the burrs of the stamped part to a certain extent, reduce the burrs adhering to the stamped part and the die, and avoid the stamped part formed by the die in the future from producing an unexpected brushed surface.

[0038] To prevent the material 9 from deforming during the stamping process, the bottom surface of the upper die holder 3 and the top surface of the lower die holder 4 provided by the present invention are both circular, and the diameter of the circle is greater than the maximum diagonal length of the first blank cavity and the second blank cavity. The area of ​​the circle is greater than the sum of the areas of the first blank cavity 21 and the second blank cavity 22. In particular, after the upper die 1 and the lower die 2 are in complete stamping contact, the surface of the upper die holder 3 can be infinitely close to the surface of the material 9, avoiding the problem of the material 9 deforming along the upper die 1 and the lower die 2, which is beneficial to ensuring the forming quality of the subsequent stamped parts.

[0039] To improve the balance of material 9, in addition to cooperating with the traction device in the workshop, such as the material roller, the present invention also sets a structure on the automatic feeding model 5 that can play a shaping role. Specifically, a pair of support blocks 52 are set on both sides above the feeding port 51 provided by the present invention. A shaping plate 53 is set on the support block 52. Multiple slots are set at the bottom of the shaping plate 53, and a pressure plate 54 is set in the slot. The support block 52 provides sufficient support height for the shaping plate 53. The top of the pressure plate 54 is embedded in the slot to keep it fixed. The bottom of the pressure plate 54 is smooth and is used to slide in contact with the top surface of the material 9. The left and right length of the pressure plate 54 is greater than the diameter left after the blank is punched to avoid getting stuck at the blank punching point. In this way, the pressure plate 54 in the direction of the two feeding ports 51 can play a certain role in restricting the horizontal feeding of material 9, which is conducive to ensuring the balance of material 9 and thus improving its cooperation performance with the upper mold 1 and the lower mold 2.

[0040] Furthermore, the shaping plate 53 provided by the present invention has a pair of screw holes near its end. Above the screw holes is an elastic support arm 55 connected to it by screws. The elastic support arm 55 has a Z-shaped structure and its end faces the stamping direction of the upper die base 3 and the lower die base 4. The elastic support arm 55 is supported by a sheet-like metal material with elasticity. Through the supporting action of its end, it can pull closer to the actual span of the device to limit the horizontal movement of the top surface of the material 9, ensuring the horizontal performance of the material 9 at the moment of punching and the end of forming, avoiding obvious bending deformation, which is beneficial to ensuring the quality of passive traction and release of the material 9 and the stamping quality of the subsequent products.

[0041] To improve the support performance of the elastic support arm 55 on the material 9, the elastic support arm 55 can generate elastic deformation at the moment when the material 9 shows a tendency to deform, which is beneficial for the material 9 to quickly return to the traction level within the balance range. Moreover, in order to ensure the material 9's feeding performance, the present invention provides a bull's eye ball bearing 56 and a rolling roller 57 at the end of the elastic support arm 55. The length of the rolling roller 57 is greater than the diameter of the bull's eye ball bearing 56, and the rolling direction of the rolling roller 57 is consistent with the feeding direction of the material 9. A set of rolling roller 57 and bull's eye ball bearing 56 contact the material 9 to form a line contact pair and a point contact pair, that is, to form a complete rolling support plane. The four rolling support planes formed by the four elastic support arms 55 are theoretically designed to be on the same plane, and under real-time pressure, they maintain dynamic balance, thereby further balancing the feeding level of the material 9.

[0042] In order to ensure that the gas surrounded by the upper mold 1 and the lower mold 2 during the punching and forming stage is properly discharged, the present invention provides exhaust holes 41 between the first blank cavity 21 and the first die 23 and between the second blank cavity 22 and the second die 24. For example, the gas inside the first blank cavity 21 and the first blank contour punching cutter 11 can be discharged from the exhaust holes 41 from top to bottom to the platform surface of the stamping machine, which is beneficial to ensuring the quality of the stamped parts.

[0043] To ensure the alignment quality of the upper mold 1 and the lower mold 2, the present invention provides an adjustment component 6 to fine-tune the center position of the lower mold 2 within the automatic feeding model 5. The adjustment component 6 includes a push plate that radially conforms to the ring seat, and the push plate is provided with an ejector screw. The ejector screw is connected to the automatic feeding model 5. The lower mold seat 4 is located inside the ring seat. By adjusting the ejector screw, the center position of the ring seat can be finely adjusted within a small range until the upper mold 1 and the lower mold 2 have the required alignment.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A precision forming mold for a watch buckle, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are respectively disposed on an upper mold base and a lower mold base, characterized in that, An automatic feeding model is provided on the outer side of the lower mold base. Feed ports for feeding are provided on the left and right sides of the automatic feeding model. Multiple adjustment components for adjusting the center position of the lower mold base are provided on the side of the automatic feeding model. The lower mold includes a first blank cavity and a second blank cavity that are staggered from left to right. A first die is provided in the first blank cavity at a level lower than its top, and a second die is provided in the second blank cavity at a level lower than its top. The upper mold includes a first blank contour cutting cutter and a second blank contour cutting cutter that are staggered from left to right. A first punch is provided inside the first blank contour cutting cutter, and a second punch is provided inside the second blank contour cutting cutter. The first die and the first punch are stamped together and used to form a watch buckle insert, and the second die and the second punch are stamped together and used to form a watch buckle shell. The upper die base is provided with a material ejection mechanism that is vertically movable therewith. The material ejection mechanism includes a fixed sleeve. The bottom of the fixed sleeve is provided with ejection blades located between the first blank contour punch and the first punch and between the second blank contour punch and the second punch. The upper die base is provided with an inlet and outlet for the ejection blades to move relative to the upper die base.

2. The precision forming mold for a watch buckle according to claim 1, characterized in that, The thickness of the first punch is greater than the depth of the first die, and the thickness of the second punch is greater than the depth of the second die.

3. The precision forming mold for a watch buckle according to claim 2, characterized in that, Both the first punch and the second punch have an arched H-shaped structure. The ejector tool is mounted on a tool holder, which is fixedly connected to a fixed sleeve. The ejector tool mates with the H-shaped opening of the first punch and the H-shaped opening of the second punch. The thickness of the ejector tool located between the first blank contour cutting tool and the first punch is equal to the gap width between the first blank contour cutting tool and the first punch. The thickness of the ejector tool located between the second blank contour cutting tool and the second punch is equal to the gap width between the second blank contour cutting tool and the second punch.

4. A precision forming mold for a watch buckle according to claim 1 or 3, characterized in that, The upper die base is provided with a nested air ring sleeve, which is synchronously connected to multiple air channels provided inside the upper die base. The air outlets of the air channels are located between the first blank contour punch and the first punch, and between the second blank contour punch and the second punch.

5. A precision forming mold for a watch buckle according to claim 1, characterized in that, The bottom surface of the upper mold base and the top surface of the lower mold base are both circular, and the diameter of the circle is greater than the maximum diagonal length of the first blank cavity and the second blank cavity.

6. The precision forming mold for a watch buckle according to claim 1, characterized in that, A pair of support blocks are provided on both sides above the feed port. A shaping plate is provided on the support block. Multiple slots are provided at the bottom of the shaping plate. A pressure plate is provided in each slot.

7. A precision forming mold for a watch buckle according to claim 6, characterized in that, The shaping plate has a pair of screw holes near its end. Above the screw holes is an elastic support arm connected to it by screws. The elastic support arm has a Z-shaped structure and its end faces the stamping direction of the upper and lower die bases.

8. A precision forming mold for a watch buckle according to claim 7, characterized in that, The end of the elastic support arm is provided with a bullseye ball bearing and a rolling roller, the length of which is greater than the diameter of the bullseye ball bearing.

9. A precision forming mold for a watch buckle according to claim 1, characterized in that, Vent holes are provided between the first blank cavity and the first die, and between the second blank cavity and the second die.

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