One-step forming die for lock catch and processing technology thereof

Abstract

The present application relates to a lock forming die technical field, specifically said is a kind of lock one-time forming die and processing technology, including base, the surface of base is fixedly connected with support plate, the lower end of support plate is provided with first extrusion mechanism, the first extrusion mechanism includes shell, the inside of shell is slidably connected with first sliding rod, the surface of first sliding rod is slidably connected with first mould, the inside of shell is provided with spraying mechanism, the lower end of shell is provided with second extrusion mechanism, the upper end of first mould is provided with push mechanism;First, the martensitic stainless steel lock is preliminarily bent by shell, and the internal stress is released first part, after preliminary pressing, material surface can have slight concave-convex, when extruding again, and the friction with mould is greater, spray extreme pressure emulsion at bending, emulsion is like pour a layer of lubricating oil, avoid being scratched or stuck by mould due to too much friction, reduce surface crack.

Description

Technical Field

[0001] This invention relates to the field of lock forming mold technology, specifically a one-time forming mold for locks and its processing technology. Background Technology

[0002] A one-piece locking mold is a specialized mold that can complete the final shape of a locking part in a single processing step. Its core lies in the "one-piece molding" technology, which means that the material (such as ABS engineering plastic, stainless steel plate, etc.) is directly formed into a finished product that meets the design requirements after one injection, stamping or molding process in the mold, without the need for secondary processing or assembly. Typical structures include upper and lower mold components, guiding systems (such as guide pillars and guide pillar bushings) and demolding mechanisms (such as inclined ejector rods or inclined guide pillar sliders). The coaxiality error of some high-precision molds (such as U-shaped car door locking molds) can be controlled within ±0.003mm. One-piece locking molds achieve efficient, precise and low-cost production through a single processing step and are widely used in the automotive, smart home, and electronics industries.

[0003] In existing one-time forming molds for latches, the occurrence of bending cracks during the one-time forming process is closely related to the mechanical properties of the material (such as ductility, toughness, and brittleness), composition characteristics, and forming process. The core reason for the cracking of the latch during the one-time bending forming process is that the material cannot release the tensile and compressive stress generated by bending through plastic deformation, resulting in local stress exceeding the fracture strength. Martensitic stainless steel (such as 420 and 440 series) has a high carbon content (0.15%~1.2%) and a hard and brittle martensite structure at room temperature. It has a strong tendency to work harden during bending, and the tensile stress on the outside is prone to cracking. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a one-time forming mold for a locking device and its processing technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a one-time forming mold for a lock, including a base, a support plate fixedly connected to the surface of the base, a first extrusion mechanism for initially extruding and bending the lock at the lower end of the support plate, the first extrusion mechanism including a housing, a first sliding rod slidably connected inside the housing, a first mold slidably connected to the surface of the first sliding rod, a spraying mechanism for spraying extreme pressure emulsion at the bent part of the initially extruded and bent lock inside the housing, a second extrusion mechanism for further extruding the lock into a U-shape at the lower end of the housing, and a pushing mechanism for pushing the formed lock to the ground at the upper end of the first mold.

[0006] Preferably, the first extrusion mechanism includes a hydraulic cylinder, the non-output end of which is mounted on the surface of the support plate, the output end of which is fixedly connected to a housing, the lower end of the first mold is fixedly connected to a second sliding rod, a first spring is sleeved on the outside of the second sliding rod, the lower end of the first spring is in contact with the upper end of the base, the surface of the second sliding rod is slidably connected to the base, a first hollow groove is opened inside the housing, several small holes are opened inside the housing, and a telescopic barrel is fixedly connected to the upper end of the housing.

[0007] Preferably, the first extrusion mechanism further includes a telescopic plate, and the telescopic plate is elastically connected to the inside of the telescopic barrel by a compression spring.

[0008] Preferably, the spraying mechanism includes a first sleeve, which is fixedly connected to the first sliding rod. A second spring is fixedly connected to the upper end of the first sleeve, and the upper end of the second spring is fixedly connected to the housing. A first piston is fixedly connected inside the housing, and a hose is fixedly connected to the bottom end of the inside of the first sleeve. The hose is fixedly connected to the housing.

[0009] Preferably, the second extrusion mechanism includes a first connecting rod, which is fixedly connected to the housing. A first inclined slider is fixedly connected to the lower end of the first connecting rod, and a second inclined slider is attached to one end of the first inclined slider. A second mold is fixedly connected to the surface of the second inclined slider.

[0010] Preferably, the second extrusion mechanism further includes a sliding block, one end of the second mold is fixedly connected to the sliding block, and one end of the sliding block is elastically connected to a second sleeve via a compression spring.

[0011] Preferably, the pushing mechanism includes a third sliding rod, which is fixedly connected to the housing. A second piston is fixedly connected to the lower end of the third sliding rod. A fifth sleeve is sleeved on the outside of the second piston. A third spring is fixedly connected to the upper end of the second piston. The upper end of the third spring is fixedly connected to the fifth sleeve. A fourth sliding rod is slidably connected inside the fifth sleeve. A second hollow groove is provided inside the fourth sliding rod.

[0012] Preferably, the pushing mechanism further includes a third sleeve, which is sleeved on the outside of the fourth sliding rod. The third sleeve is fixedly connected to the inside of the fifth sleeve. The inside of the fifth sleeve has a third hollow groove. The surface of the fifth sleeve is fixedly connected to the fourth sleeve. One end of the fourth sleeve is fixedly connected to the first mold. A third piston is slidably connected inside the fourth sleeve. One end of the third piston is fixedly connected to a second connecting rod. One end of the third piston is fixedly connected to a fourth spring. One end of the fourth spring is fixedly connected to the fourth sleeve. One end of the second connecting rod is fixedly connected to a baffle.

[0013] Preferably, it includes the following steps:

[0014] S1, when in use, the hydraulic cylinder is activated to move downwards, and the downward movement of the hydraulic cylinder drives the housing to move downwards, and the downward movement of the housing initially bends the latch;

[0015] S2, through the set structure, after the lock is initially bent, the housing continues to be pressed down. At this time, the liquid inside the first hollow groove in the housing will be discharged through the small hole to the bent part of the lock.

[0016] S3, after adding liquid to the buckle bend, the housing continues to move downward, which will drive the first connecting rod to move downward. The first connecting rod moves downward, which in turn drives the two second molds to move closer to each other. The two second molds squeeze the buckle again.

[0017] S4, as the shell continues to move downward, it will drive the telescopic plate to compress the compression spring inside the telescopic barrel. While the two second molds squeeze the buckle again, the telescopic plate retracts into the telescopic barrel. At this time, the shell continues to move downward and will fit with the first mold. In this process, the buckle is further squeezed into a U-shape.

[0018] S5, when the hydraulic cylinder drives the housing to move upward and the telescopic plate moves away from the first mold, after the telescopic plate moves away from the first mold, the housing will move upward and drive the baffle to push the latch to the ground, and then the baffle will automatically reset.

[0019] The beneficial effects of this invention are:

[0020] The present invention discloses a one-time forming mold for a latch and its processing technology, wherein a hydraulic cylinder is used to move downward to drive the housing downward, and the housing performs an initial bending of the latch during the downward movement.

[0021] The present invention discloses a one-time forming mold for a lock. Through the structure set, after the lock is initially bent, the housing is pressed down. At this time, the liquid inside the first hollow groove in the housing will be discharged through the small hole to the bent part of the lock. The liquid is an extreme pressure emulsion with the following composition: mineral oil base + extreme pressure additive.

[0022] The present invention discloses a one-time forming mold for a lock. With the addition of liquid at the bend of the lock, the shell continues to move downward, causing two second molds to move closer to each other. The two second molds squeeze the lock again. Combined with the mixed extreme pressure emulsion, the lock can be lubricated, cooled and anti-wear can be achieved, avoiding scratches and cracks.

[0023] The present invention discloses a one-time forming mold for a latch. Through a designed structure, while the two second molds further compress the latch, the telescopic plate retracts into the telescopic barrel. At this time, the housing continues to move downward and will fit against the first mold. In this process, the latch is further compressed into a U-shape. Through the designed structure, when the hydraulic cylinder drives the housing to move upward and the telescopic plate moves away from the first mold, after the telescopic plate moves away from the first mold, the housing moves upward and drives the baffle to push the latch to the ground. After pushing, the baffle automatically resets.

[0024] The present invention describes a one-time forming mold for a buckle. First, the martensitic stainless steel buckle is initially bent through the shell to release some of the internal stress. After the initial pressing, the material surface may have slight unevenness. When it is squeezed, the friction with the mold is greater. Extreme pressure emulsion is sprayed at the bending point. The emulsion is like a layer of lubricating oil, which avoids the material being scratched or stuck by the mold due to excessive friction and reduces surface cracks. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the connection structure between the support plate and the hydraulic cylinder;

[0028] Figure 3 This is a schematic diagram of the connection structure between the shell and the telescopic barrel;

[0029] Figure 4 This is a schematic diagram of the connection structure between the third sliding rod and the fifth sleeve;

[0030] Figure 5 This is a schematic diagram of the connection structure between the first connecting rod and the first inclined slider;

[0031] Figure 6 This is a schematic diagram of the connection structure between the baffle and the first mold;

[0032] Figure 7 This is a schematic diagram of the connection structure between the housing and the first sliding rod;

[0033] Figure 8 This is a cross-sectional view of the interior of the shell;

[0034] Figure 9 This is a schematic diagram of the connection structure between the second piston and the third spring;

[0035] Figure 10 for Figure 9 The diagram shows an enlarged view of part A.

[0036] In the diagram: 100, base; 200, support plate; 300, first extrusion mechanism; 301, hydraulic cylinder; 302, housing; 3021, first hollow groove; 3022, small hole; 303, first sliding rod; 304, first mold; 305, second sliding rod; 306, first spring; 307, telescopic barrel; 308, telescopic plate; 400, spraying mechanism; 401, first sleeve; 402, second spring; 403, first piston; 404, hose; 500, second extrusion mechanism; 501, first connection. 502. Rod; 503. First inclined slider; 504. Second inclined slider; 505. Second mold; 506. Sliding block; 507. Second sleeve; 608. Pushing mechanism; 609. Third piston; 600. Third spring; 601. Fourth sliding rod; 602. Second piston; 603. Third spring; 604. Fourth sliding rod; 605. Second hollow groove; 606. Third sleeve; 607. Third piston; 608. Second connecting rod; 609. Fourth spring; 610. Baffle; 611. Fifth sleeve; 6111. Third hollow groove. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] like Figures 1-10 As shown, the present invention discloses a one-time forming mold for a lock, comprising a base 100, a support plate 200 fixedly connected to the surface of the base 100, a first extrusion mechanism 300 for initially extruding and bending the lock at the lower end of the support plate 200, the first extrusion mechanism 300 comprising a housing 302, a first sliding rod 303 slidably connected inside the housing 302, a first mold 304 slidably connected to the surface of the first sliding rod 303, a spraying mechanism 400 for spraying extreme pressure emulsion onto the bent portion of the initially extruded and bent lock at the interior of the housing 302, a second extrusion mechanism 500 for further extruding the lock into a U-shape at the lower end of the housing 302, and a pushing mechanism 600 for pushing the formed lock to the ground at the upper end of the first mold 304.

[0039] Specifically, the first extrusion mechanism 300 includes a hydraulic cylinder 301. The non-output end of the hydraulic cylinder 301 is mounted on the surface of the support plate 200. The output end of the hydraulic cylinder 301 is fixedly connected to a housing 302. A second sliding rod 305 is fixedly connected to the lower end of the first mold 304. A first spring 306 is sleeved on the outside of the second sliding rod 305. The lower end of the first spring 306 is in contact with the upper end of the base 100. The surface of the second sliding rod 305 is slidably connected to the base 100. A first hollow groove 3021 is formed inside the housing 302. Several hollow grooves are formed inside the housing 302. A small hole 3022 is provided. A telescopic barrel 307 is fixedly connected to the upper end of the housing 302. A telescopic plate 308 is elastically connected inside the telescopic barrel 307 via a compression spring. When in use, the hydraulic cylinder 301 is activated to move downward. The downward movement of the hydraulic cylinder 301 will drive the housing 302 to move downward. The downward movement of the housing 302 will drive the first sliding rod 303 to move downward. At this time, the housing 302 will approach the first mold 304. The downward movement of the housing 302 will initially bend the latch. The downward movement of the hydraulic cylinder 301 drives the housing 302 to move downward, and the downward movement of the housing 302 will initially bend the latch.

[0040] Additionally, the spraying mechanism 400 includes a first sleeve 401, which is fixedly connected to the first sliding rod 303. A second spring 402 is fixedly connected to the upper end of the first sleeve 401, and the upper end of the second spring 402 is fixedly connected to the housing 302. A first piston 403 is fixedly connected inside the housing 302, and a hose 404 is fixedly connected to the bottom end of the inside of the first sleeve 401. The hose 404 is fixedly connected to the housing 302. The housing 302 contains liquid, the height of which is lower than the height of the first piston 403. The liquid is an extreme pressure emulsion, composed of mineral oil base + extreme pressure additives containing sulfur and phosphorus compounds + emulsifier. After dilution, the water-based concentration is 8%~12%. The extreme pressure additive forms a chemical reaction film between the mold and stainless steel at the contact interface, withstanding compressive stress above 1000MPa, reducing the coefficient of friction to below 0.05 (compared to 0.15 for ordinary engine oil). The water-based system absorbs the heat of bending friction. The temperature can be controlled below 60℃ to suppress the aggravation of work hardening. After the lock is initially bent, the housing 302 continues to be pressed down. The first sliding rod 303 will move upward and drive the first sleeve 401 to move upward. The upward movement of the first sleeve 401 will compress the second spring 402. The first sleeve 401 is similar to an upward-opening container. When the first sleeve 401 moves upward and contacts the first piston 403, the first piston 403 will squeeze out the liquid in the first sleeve 401. The liquid squeezed out of the first sleeve 401 enters the interior of the first hollow groove 3021 through the hose 404. The liquid inside the first hollow groove 3021 in the housing 302 will be discharged through the small hole 3022 to the bent part of the lock. Through the structure, after the lock is initially bent, the housing 302 continues to be pressed down. At this time, the liquid inside the first hollow groove 3021 in the housing 302 will be discharged through the small hole 3022 to the bent part of the lock.

[0041] Further, the second extrusion mechanism 500 includes a first connecting rod 501, which is fixedly connected to the housing 302. A first inclined slider 502 is fixedly connected to the lower end of the first connecting rod 501. A second inclined slider 503 is attached to one end of the first inclined slider 502. A second mold 504 is fixedly connected to the surface of the second inclined slider 503. A sliding block 505 is fixedly connected to one end of the second mold 504. A second sleeve 506 is elastically connected to one end of the sliding block 505 via a compression spring. When the housing 302 moves downward, it drives the first connecting rod 501 downward. The downward movement of the first connecting rod 501 drives the first inclined slider 502 downward. The downward movement of the first inclined slider 502 will cooperate with the second inclined slider 503. The downward movement of the first inclined slider 502 will drive the two second inclined sliders 503 to move closer to each other. The two second inclined sliders 503 moving closer to each other will drive the two second molds 504 to move closer to each other. The second molds 504 are limited by the sliding block 505 and the second sleeve 506, so that the second molds 504 can only move horizontally. The two second molds 504 moving closer to each other will squeeze the lock again. With the structure set, after adding liquid at the bend of the lock, the housing 302 continues to move downward, driving the two second molds 504 to move closer to each other. The two second molds 504 squeeze the lock again. Combined with the mixed extreme pressure emulsion, the lock can be lubricated, cooled and anti-wear can be achieved, avoiding scratches and cracks.

[0042] It should be noted that when the housing 302 continues to move downward, it will cause the telescopic plate 308 to compress the compression spring inside the telescopic barrel 307. The compression spring inside the telescopic barrel 307 has a very large elastic force. In this invention, only the hydraulic cylinder 301 can push the compression spring inside the telescopic barrel 307. At this time, the telescopic plate 308 retracts into the telescopic barrel 307. At this time, the housing 302 continues to move downward and will fit with the first mold 304, and will drive the first mold 304 to move downward. The downward movement of the first mold 304 will drive the second sliding rod 305 to move downward. During the downward movement of the first mold 304, the first spring 306 will be compressed. During this process, the first mold 304 completes the further extrusion and shaping of the lock. Through the structure set, while the two second molds 504 extrude the lock again, the telescopic plate 308 retracts into the telescopic barrel 307. At this time, the housing 302 continues to move downward and will fit with the first mold 304. During this process, the lock is further extruded into a U-shape.

[0043] It is worth mentioning that the pushing mechanism 600 includes a third sliding rod 601, which is fixedly connected to the housing 302. A second piston 602 is fixedly connected to the lower end of the third sliding rod 601. A fifth sleeve 611 is fitted around the second piston 602. A third spring 603 is fixedly connected to the upper end of the second piston 602. The upper end of the third spring 603 is fixedly connected to the fifth sleeve 611. A fourth sliding rod 604 is slidably connected inside the fifth sleeve 611. A second hollow groove 6041 is provided inside the fourth sliding rod 604. A third sleeve 605 is fitted around the fourth sliding rod 604. The third sleeve 605 is fixedly connected to the interior of the fifth sleeve 611. The interior of the fifth sleeve 611 has a third hollow groove 6111. The surface of the fifth sleeve 611 is fixedly connected to the fourth sleeve 606. One end of the fourth sleeve 606 is fixedly connected to the first mold 304. The interior of the fourth sleeve 606 is slidably connected to the third piston 607. One end of the third piston 607 is fixedly connected to the second connecting rod 608. One end of the third piston 607 is fixedly connected to the fourth spring 609. One end of the fourth spring 609 is fixedly connected to the fourth sleeve 606. One end of the second connecting rod 608 is fixedly connected to the baffle 610.The initial position of the second piston 602 is at the upper end of the fifth sleeve 611. At this time, the third spring 603 is in the reset state. After the latch is formed, the second piston 602 is at the bottom end of the fifth sleeve 611. At this time, outside air enters the interior of the fifth sleeve 611 through the third hollow groove 6111. The upward movement of the second piston 602 compresses the air inside the fifth sleeve 611. When the third sliding rod 601 moves upward, it drives the second piston 602 to move upward. The upward movement of the second piston 602 compresses the air inside the fifth sleeve 611. The air inside the fifth sleeve 611 enters the fourth sleeve 606. The air inside the fourth sleeve 606 pushes the third piston 607 to one end. The movement of the third piston 607 to one end drives the second connecting rod 608 to one end. The movement of the second connecting rod 608 to one end drives the baffle 610 to one end. The movement of the baffle 610 to one end pushes the completed latch to the ground. The lower end of the housing 302 has a groove. When the housing 302 is in contact with the first mold 304, the second connecting rod 608 and the baffle 610 will enter the groove at the lower end of the housing 302. The upward movement of the second piston 602 will drive the fourth sliding rod 604 to move upward. The upward movement of the fourth sliding rod 604 will drive the second hollow groove 6041 away from the third sleeve 605. After the fourth sliding rod 604 moves away from the third sleeve 605, the high-pressure gas inside the fourth sleeve 606 and the fifth sleeve 611 will be discharged from the second hollow groove 6041 into the outside air. At this time, the third piston 607 will be reset to a position close to the fourth sliding rod 604 under the elastic force of the fourth spring 609. Through the structure, when the hydraulic cylinder 301 drives the housing 302 to move upward and the telescopic plate 308 moves away from the first mold 304, the upward movement of the housing 302 will drive the baffle 610 to push the latch to the ground. After pushing the baffle 610, it will automatically reset. ;

[0044] Working principle: When in use, the hydraulic cylinder 301 is activated to move downward. The downward movement of the hydraulic cylinder 301 will drive the housing 302 to move downward. The downward movement of the housing 302 will drive the first sliding rod 303 to move downward. At this time, the housing 302 will approach the first mold 304. The downward movement of the housing 302 will initially bend the latch. The hydraulic cylinder 301 is used to drive the housing 302 to move downward, and the downward movement of the housing 302 will initially bend the latch.

[0045] The housing 302 contains a liquid, the height of which is lower than the height of the first piston 403. The liquid is an extreme pressure emulsion, composed of mineral oil base + extreme pressure additives containing sulfur and phosphorus compounds + emulsifier. After dilution, the water-based concentration is 8%~12%. The extreme pressure agent forms a chemical reaction film between the mold and stainless steel at the contact interface, withstanding compressive stress of over 1000MPa and reducing the coefficient of friction to below 0.05 (compared to 0.15 for ordinary machine oil). The water-based system absorbs bending friction heat, and the temperature can be controlled below 60℃, inhibiting the aggravation of work hardening. After the lock is initially bent, the housing 302 continues to be pressed downwards. As the housing 302 continues to be pressed downwards, the first sliding rod 303 moves upwards, driving the first sleeve 401 upwards. When the first sleeve 401 moves upward, it compresses the second spring 402. The first sleeve 401 is similar to an upward-opening container. When the first sleeve 401 moves upward and contacts the first piston 403, the first piston 403 will squeeze out the liquid inside the first sleeve 401. The liquid squeezed out of the first sleeve 401 enters the interior of the first hollow groove 3021 through the hose 404. The liquid inside the first hollow groove 3021 in the housing 302 will be discharged through the small hole 3022 to the buckle bend. Through the structure, after the buckle is initially bent, the housing 302 continues to be pressed downward. At this time, the liquid inside the first hollow groove 3021 in the housing 302 will be discharged through the small hole 3022 to the buckle bend.

[0046] When the housing 302 moves downward, it drives the first connecting rod 501 downward. The downward movement of the first connecting rod 501 drives the first inclined slider 502 downward. The downward movement of the first inclined slider 502 engages with the second inclined slider 503. The downward movement of the first inclined slider 502 causes the two second inclined sliders 503 to move closer together. The two second inclined sliders 503 moving closer together cause the two second molds 504 to move closer together. The second molds 504 are limited by the sliding block 505 and the second sleeve 506, so that the second molds 504 can only move horizontally. The two second molds 504 moving closer together will squeeze the lock again. With the structure set, after adding liquid at the bend of the lock, the housing 302 continues to move downward, causing the two second molds 504 to move closer together. The two second molds 504 squeeze the lock again. Combined with the mixed extreme pressure emulsion, the lock can be lubricated, cooled and anti-wear can be achieved, avoiding scratches and cracks.

[0047] As the housing 302 continues to move downwards, it will cause the telescopic plate 308 to compress the compression spring inside the telescopic barrel 307. The compression spring inside the telescopic barrel 307 has a very large elastic force. In this invention, only the hydraulic cylinder 301 can push the compression spring inside the telescopic barrel 307. At this time, the telescopic plate 308 retracts into the telescopic barrel 307. At this time, the housing 302 continues to move downwards and will fit with the first mold 304, and will drive the first mold 304 to move downwards. The downward movement of the first mold 304 will drive the second sliding rod 305 to move downwards. During the downward movement of the first mold 304, the first spring 306 will be compressed. During this process, the first mold 304 completes further extrusion and shaping of the lock. Through the structure, while the two second molds 504 extrude the lock again, the telescopic plate 308 retracts into the telescopic barrel 307. At this time, the housing 302 continues to move downwards and will fit with the first mold 304. During this process, the lock is further extruded into a U-shape.

[0048] The initial position of the second piston 602 is at the upper end of the fifth sleeve 611. At this time, the third spring 603 is in the reset state. After the latch is formed, the second piston 602 is at the bottom end of the fifth sleeve 611. At this time, outside air enters the interior of the fifth sleeve 611 through the third hollow groove 6111. The upward movement of the second piston 602 compresses the air inside the fifth sleeve 611. When the third sliding rod 601 moves upward, it drives the second piston 602 to move upward. The upward movement of the second piston 602 compresses the air inside the fifth sleeve 611. The air inside the fifth sleeve 611 enters the fourth sleeve 606. The air inside the fourth sleeve 606 pushes the third piston 607 to one end. The movement of the third piston 607 to one end drives the second connecting rod 608 to one end. The movement of the second connecting rod 608 to one end drives the baffle 610 to one end. The movement of the baffle 610 to one end pushes the completed latch to the ground. The lower end of the housing 302 has a groove. When the housing 302 is in contact with the first mold 304, the second connecting rod 608 and the baffle 610 will enter the groove at the lower end of the housing 302. The upward movement of the second piston 602 will drive the fourth sliding rod 604 to move upward. The upward movement of the fourth sliding rod 604 will drive the second hollow groove 6041 away from the third sleeve 605. After the fourth sliding rod 604 moves away from the third sleeve 605, the high-pressure gas inside the fourth sleeve 606 and the fifth sleeve 611 will be discharged from the second hollow groove 6041 into the outside air. At this time, the third piston 607 will be reset to a position close to the fourth sliding rod 604 under the elastic force of the fourth spring 609. Through the structure, when the hydraulic cylinder 301 drives the housing 302 to move upward and the telescopic plate 308 moves away from the first mold 304, the upward movement of the housing 302 will drive the baffle 610 to push the latch to the ground. After pushing the baffle 610, it will automatically reset.

[0049] The initial pressing and bending of the stainless steel buckle is equivalent to allowing the material to "adapt" to deformation, releasing some of the internal stress. When pressing it to the target shape later, the deformation is smaller, like bending a wire in two stages with less force each time, making it less prone to cracking. After the initial pressing, the material surface may have slight unevenness, increasing friction with the mold during further compression, similar to how dry rubbing of hands causes heat and stiffness. Spraying extreme pressure emulsion at the bending point acts like applying a layer of lubricating oil, forming a thin film between the material and the mold. This allows the material to "flow" more smoothly during compression, preventing scratches or jamming due to excessive friction and reducing surface cracks. The deformation during compression generates heat, similar to how repeatedly bending an iron sheet causes it to get hot. As the temperature rises, the material's toughness decreases, like glass becoming brittle after being heated to red-hot, making it prone to cracking. The water in the emulsion quickly carries away the heat, keeping the material "soft" and more "resistant" to deformation.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking buckle one-time forming mold, comprising a base (100), wherein a support plate (200) is fixedly connected to the surface of the base (100), characterized in that: The lower end of the support plate (200) is provided with a first extrusion mechanism (300) for initially extruding and bending the buckle. The first extrusion mechanism (300) includes a housing (302). A first sliding rod (303) is slidably connected inside the housing (302). A first mold (304) is slidably connected to the surface of the first sliding rod (303). A spraying mechanism (400) for spraying extreme pressure emulsion at the bent part of the buckle after initial extrusion and bending is provided inside the housing (302). The lower end of the housing (302) is provided with a second extrusion mechanism (500) for further extruding the buckle into a U-shape. The upper end of the first mold (304) is provided with a pushing mechanism (600) for pushing the formed buckle to the ground. The second extrusion mechanism (500) includes a first connecting rod (501), which is fixedly connected to the housing (302). A first inclined slider (502) is fixedly connected to the lower end of the first connecting rod (501), and a second inclined slider (503) is attached to one end of the first inclined slider (502). A second mold (504) is fixedly connected to the surface of the second inclined slider (503). The spraying mechanism (400) includes a first sleeve (401), which is fixedly connected to the first sliding rod (303). A second spring (402) is fixedly connected to the upper end of the first sleeve (401), and the upper end of the second spring (402) is fixedly connected to the housing (302). A first piston (403) is fixedly connected inside the housing (302). A hose (404) is fixedly connected to the bottom end of the inside of the first sleeve (401), and the hose (404) is fixedly connected to the housing (302). The pushing mechanism (600) includes a third sliding rod (601), which is fixedly connected to the housing (302). The lower end of the third sliding rod (601) is fixedly connected to a second piston (602). A fifth sleeve (611) is sleeved on the outside of the second piston (602). A third spring (603) is fixedly connected to the upper end of the second piston (602). The upper end of the third spring (603) is fixedly connected to the fifth sleeve (611). A fourth sliding rod (604) is slidably connected inside the fifth sleeve (611). A second hollow groove (6041) is provided inside the fourth sliding rod (604).

2. The locking one-time forming mold according to claim 1, characterized in that: The first extrusion mechanism (300) includes a hydraulic cylinder (301). The non-output end of the hydraulic cylinder (301) is mounted on the surface of the support plate (200). The output end of the hydraulic cylinder (301) is fixedly connected to a housing (302). The lower end of the first mold (304) is fixedly connected to a second sliding rod (305). A first spring (306) is sleeved on the outside of the second sliding rod (305). The lower end of the first spring (306) is in contact with the upper end of the base (100). The surface of the second sliding rod (305) is slidably connected to the base (100). A first hollow groove (3021) is opened inside the housing (302). Several small holes (3022) are opened inside the housing (302). A telescopic barrel (307) is fixedly connected to the upper end of the housing (302).

3. The locking one-time forming mold according to claim 2, characterized in that: The first extrusion mechanism (300) also includes a telescopic plate (308), and the telescopic plate (308) is elastically connected to the inside of the telescopic barrel (307) by a compression spring.

4. The locking one-time forming mold according to claim 3, characterized in that: The second extrusion mechanism (500) further includes a sliding block (505), one end of the second mold (504) is fixedly connected to the sliding block (505), and one end of the sliding block (505) is elastically connected to the second sleeve (506) through a compression spring.

5. The locking one-time forming mold according to claim 4, characterized in that: The pushing mechanism (600) further includes a third sleeve (605), which is sleeved on the outside of the fourth sliding rod (604). The third sleeve (605) is fixedly connected to the inside of the fifth sleeve (611). The inside of the fifth sleeve (611) is provided with a third hollow groove (6111). The surface of the fifth sleeve (611) is fixedly connected to a fourth sleeve (606). One end of the fourth sleeve (606) is fixedly connected to the first mold (304). The inside of the fourth sleeve (606) is slidably connected to a third piston (607). One end of the third piston (607) is fixedly connected to a second connecting rod (608). One end of the third piston (607) is fixedly connected to a fourth spring (609). One end of the fourth spring (609) is fixedly connected to the fourth sleeve (606). One end of the second connecting rod (608) is fixedly connected to a baffle (610).

6. A one-time forming process for a latch, applicable to the one-time forming mold for a latch as described in any one of claims 1-5, characterized in that, Specifically, the following steps are included: S1, when in use, the hydraulic cylinder (301) is started to move downward. The hydraulic cylinder (301) moves downward to drive the housing (302) to move downward. The housing (302) bends the latch in the initial way when it moves downward. S2, through the structure set, after the buckle is initially bent, the housing (302) continues to be pressed down, at which time the liquid inside the first hollow groove (3021) inside the housing (302) will be discharged through the small hole (3022) to the buckle bending point; S3, after adding liquid to the buckle bend, when the housing (302) continues to move downward, it will drive the first connecting rod (501) to move downward. The first connecting rod (501) moves downward, which in turn drives the two second molds (504) to move closer to each other. The two second molds (504) squeeze the buckle again. S4, as the housing (302) continues to move downward, it will drive the telescopic plate (308) to compress the compression spring inside the telescopic barrel (307). While the two second molds (504) are pressing the buckle again, the telescopic plate (308) retracts into the telescopic barrel (307). At this time, the housing (302) continues to move downward and will fit with the first mold (304). In this process, the buckle is further compressed into a U-shape. S5, when the hydraulic cylinder (301) drives the housing (302) to move upward and the telescopic plate (308) moves away from the first mold (304), after the telescopic plate (308) moves away from the first mold (304), the housing (302) will move upward and drive the baffle (610) to push the latch to the ground, and push the baffle (610) to automatically reset.

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