A smart watch band rapid forming device

Abstract

This invention provides a rapid prototyping device for smartwatch straps, relating to the field of plastic strap molding. The device includes a mold body, an electric wire shaft assembly, and a wire shaft auxiliary assembly. The mold body includes an upper mold and a lower mold. A temperature-regulating component is installed at the bottom of the lower mold to control its temperature. The electric wire shaft assembly is located between the upper and lower molds and includes a wire shaft. The lower mold has several strap forming grooves and a wire shaft placement groove through which the wire shaft passes. The electric wire shaft assembly is positioned in the placement groove and passes through the strap forming grooves. This rapid prototyping device allows the wire shaft to rotate relative to the strap after molding, breaking the adhesion between the wire shaft and the strap. This allows for relatively direct removal and prevents complete deformation of the strap's shaft hole.

Description

Technical Field

[0001] This invention relates to the field of plastic watch strap molding, specifically to a rapid molding device for smartwatch watch straps. Background Technology

[0002] Smartwatch strap forming equipment is often referred to as a "strap forming machine" or "strap forming equipment." This equipment is used to shape smartwatch straps to achieve the desired shape, curves, and dimensions. These devices are typically used on production lines, using heat, pressure, or other methods to mold strap material in specific molds to ensure the strap meets design requirements and has a good appearance and comfort.

[0003] Currently, the lower flat die of the forming device has a steel wire shaft inserted into the first end of the row of watch strap forming grooves. This shaft is used to pass through and form the mounting holes at the beginning of the watch strap. After the watch strap is vulcanized and pressed into shape, the mounting holes at the beginning of the strap stick to and hold the steel wire shaft, exerting a large resistance to its removal. Existing forming devices mostly rely on the fingers to directly pinch or hold the steel wire shaft to pull it out. However, they lack a mechanism that allows for easy hand gripping and force to assist in loosening and removing the steel wire shaft. This results in limited pulling force applied by the hand to the steel wire shaft, which is insufficient to overcome the large resistance to removal. Consequently, the steel wire shaft cannot be loosened or is difficult to remove and disassemble, making operation laborious and inconvenient, and indirectly reducing the forming production efficiency of the device.

[0004] In addition, some devices are also equipped with auxiliary wire pullers. Due to the softness of the watch strap, the strap cools down along with the wire puller, and the adhesion between the two does not decrease. Therefore, pulling the wire puller after the strap has cooled down will cause the strap hole to be stretched and deformed, and may even damage the strap. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a rapid prototyping device for smartwatch straps, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a rapid prototyping device for smartwatch straps, including a mold body, an electric wire shaft assembly, and a wire shaft auxiliary assembly. The mold body includes an upper mold and a lower mold, and a temperature-regulating component is installed at the bottom of the lower mold to control the temperature of the lower mold. The electric wire shaft assembly is located between the upper and lower pressing molds. The electric wire shaft assembly includes a wire shaft. The lower pressing mold is provided with several watch strap forming grooves and a wire shaft placement groove through which the watch strap forming grooves are opened. The electric wire shaft assembly is located in the wire shaft placement groove and passes through the watch strap forming groove. The wire spindle auxiliary assembly is used to balance the force of the wire spindle and adjust its position and temperature to achieve non-destructive separation of the wire spindle from the watch strap.

[0007] Preferably, the electric wire shaft assembly further includes an electric reducer, a sliding shaft assembly, and a quick-release platform. The electric reducer is fixedly connected to the quick-release platform via a quick-release connector. A base is fixedly installed at the bottom of the lower die, and the sliding shaft assembly is fixedly installed on the base and corresponds to one side of the lower die. The wire shaft is fixedly installed on the output shaft of the electric reducer, and the quick-release platform is installed on the sliding shaft assembly. The sliding shaft assembly is used to enable the electric reducer and the wire shaft to slide along the vertical axis to ensure that the wire shaft is removed from the wire shaft placement groove.

[0008] Preferably, the sliding shaft assembly includes a connector and a vertical shaft. The connector is fixedly installed on the lower mold and the base. The vertical shaft is vertically arranged and fixed on the connector. The quick-release platform is sleeved on the vertical shaft and slidably connected to it.

[0009] Preferably, the steel wire shaft auxiliary assembly is mounted on the lower die and has multiple components arranged in a matrix, evenly distributed between the strap forming grooves.

[0010] Preferably, the steel wire shaft auxiliary assembly includes a top platform, an electric telescopic rod, and a lifting plate. The top platform is suspended above the lower die. Multiple longitudinal sliding rods are provided between the top platform and the lower die. The bottom end of the sliding rod is fixed to the lower die, and the top end of the sliding rod is fixed to the top platform. The top platform and the sliding rod are slidably connected, and the sliding rod restricts the longitudinal sliding of the top platform. The electric telescopic rod is fixed longitudinally to the top platform, with the output end of the electric telescopic rod facing downward and passing through the top platform. The output end of the electric telescopic rod is fixed to the lifting plate, which is used to lift the steel wire shaft.

[0011] Preferably, a connecting ring is fixedly installed at the bottom end of the top platform, and the connecting ring can be embedded into the wire shaft placement groove, with the wire shaft passing through the connecting ring; A storage tank is provided on the top platform, and a liquid replenishment cover is fixedly installed on the top platform. The liquid replenishment cover and the storage tank are enclosed to form a cooling chamber. Liquid nitrogen is replenished in the cooling chamber, and a heat-conducting copper rod is fixedly installed in the cooling chamber. The upper end of the heat-conducting copper rod is immersed in liquid nitrogen, and the lower end of the heat-conducting copper rod passes through the top platform and contacts the steel wire shaft. The heat-conducting copper rod seals the lower end of the storage tank.

[0012] Preferably, the upper die is provided with a plurality of grooves, and the wire shaft auxiliary component can be hidden in the grooves after the upper die approaches the lower die. An injection hole is installed on the upper die corresponding to the strap forming groove.

[0013] Preferably, the bottom of the lower mold has a cavity structure corresponding to the strap forming groove, and the temperature-changing component includes a circulating liquid pipe installed on one side of the bottom of the lower mold.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The smartwatch uses a rapid forming device for the watchband. By utilizing an electric steel wire shaft assembly, the steel wire shaft can be controlled to rotate relative to the watchband after molding is completed. This can break the adhesion between the steel wire shaft and the watchband, allowing for a relatively direct pull-out and preventing the shaft hole of the watchband from being completely deformed.

[0015] 2. The smartwatch uses a rapid band forming device. The auxiliary component of the steel wire shaft can increase the temperature difference between the steel wire shaft and the band. After the band is molded, the temperature gradient can be controlled. Then, liquid nitrogen is used to cool the steel wire shaft, adjusting its temperature to be much lower than that of the band. This way, the bonding force between the band and the steel wire shaft will not increase during the cooling process, making it easier for the steel wire shaft to detach from the band. Removing the steel wire shaft will not affect the band.

[0016] 3. The smartwatch uses a rapid forming device for the watchband. It also utilizes a steel wire shaft auxiliary component to pull the watchband out of the lower mold after the watchband has cooled down. Because the steel wire shaft auxiliary component is evenly distributed, it can lift thinner steel wire shafts, allowing all the watchbands to slowly come out of the mold, thus preventing damage to the watchband.

[0017] 4. The smartwatch uses a watchband rapid forming device. By setting up a quick-release platform, after the steel wire shaft is separated from the watchband, the steel wire shaft can be removed and manually pulled out. At this time, the resistance of the steel wire shaft is small, and pulling it out directly will not damage the watchband. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a front view of the structure of the present invention; Figure 4 This is a structural separation diagram of the upper and lower pressing dies of the present invention; Figure 5 This is a schematic diagram of the structure of the lower pressure die and the steel wire shaft auxiliary assembly of the present invention; Figure 6 This is a side view of the structure of the lower pressing mold of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the structure of the electric wire shaft assembly of the present invention; Figure 9 This is a structural cross-sectional view of the wire shaft auxiliary assembly of the present invention; Figure 10 This is a schematic diagram of the bottom structure of the lower pressing mold of the present invention.

[0019] In the diagram: 1. Mold body; 101. Upper mold; 102. Lower mold; 103. Temperature control assembly; 1031. Circulating fluid pipe; 104. Strap forming groove; 105. Steel wire shaft placement groove; 106. Base; 107. Tank body; 108. Injection hole; 2. Electric steel wire shaft assembly; 201. Steel wire shaft; 202. Electric reducer; 203. Sliding shaft assembly; 2031. Connector; 2032. Vertical shaft; 204. Quick release platform; 3. Steel wire shaft auxiliary assembly; 301. Top platform; 302. Electric telescopic rod; 303. Lifting plate; 304. Sliding rod; 305. Connecting ring; 306. Storage tank; 307. Liquid replenishment cover; 308. Cooling chamber; 309. Heat-conducting copper rod. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0024] like Figure 1-10 As shown, a rapid prototyping device for smartwatch straps includes a mold body 1, an electric wire shaft assembly 2, and a wire shaft auxiliary assembly 3. The mold body 1 includes an upper mold 101 and a lower mold 102. A temperature-regulating component 103 is installed at the bottom of the lower mold 102 to control its temperature. The electric wire shaft assembly 2 is located between the upper mold 101 and the lower mold 102. The electric wire shaft assembly 2 includes a wire shaft 201. The lower mold 102 has several strap forming grooves 104 and a wire shaft placement groove 105 through which the wire shaft passes. The electric wire shaft assembly 2 is located in the wire shaft placement groove 105 and passes through the strap forming grooves 104. The wire shaft auxiliary assembly 3 is used to balance the force of the wire shaft 201 and adjust its position and temperature to achieve non-destructive separation of the wire shaft 201 from the strap.

[0025] Generally, silicone smartwatch straps made using molding technology are formed by placing a fixed amount of silicone raw material into a metal mold and then vulcanizing it under high temperature and pressure. This method is suitable for straps with complex structures or high hardness. After the strap is formed, the steel wire shaft used for the molding shaft hole needs to be pulled out to obtain a complete finished product.

[0026] The mold body 1 of this device also includes a processing platform. The mold body 1 is fixedly installed on the processing platform surface to provide stable support for the lower die 102 and the entire mold body 1. The processing platform has reserved space for power supply wiring to facilitate the device's connection to the production workshop's power supply system and maintain the stable operation of each electric component.

[0027] Similarly, this device also includes a feed pump set for supplying raw materials, and a conveying pipeline connected to the injection hole 108. The feed pump set can quantitatively pressurize and deliver the preheated liquid watchband raw material to each watchband forming groove 104 to ensure that the raw material fills the entire cavity and avoids defects such as missing material and air bubbles in the formed watchband. The feed pressure can be adjusted according to the different viscosities of the watchband raw material to adapt to different production needs.

[0028] In an optional embodiment, the electric wire shaft assembly 2 further includes an electric reducer 202, a sliding shaft assembly 203, and a quick-release platform 204. The electric reducer 202 is fixedly connected to the quick-release platform 204 via a quick-release connector. A base 106 is fixedly mounted on the bottom of the lower pressing mold 102, and the sliding shaft assembly 203 is fixedly mounted on the base 106 and corresponds to one side of the lower pressing mold 102. The wire shaft 201 is fixedly mounted on the output shaft of the electric reducer 202, and the quick-release platform 204 is mounted on the sliding shaft assembly 203. The sliding shaft assembly 203 is used to enable the electric reducer 202 and the wire shaft 201 to slide along the vertical axis, so as to ensure that the wire shaft 201 is removed from the wire shaft placement groove 105.

[0029] In this embodiment, the electric reducer 202 includes a servo motor and a worm gear reducer. The output shaft of the servo motor is connected to the worm, and its rotation after being powered on drives the worm gear to rotate. The wire shaft 201 is connected to the output shaft of the worm gear by a coupling. The worm gear can drive the wire shaft 201 to rotate stably at a set speed, preventing it from impacting the watchband due to excessive speed, thus ensuring a stable and controllable rotation and loosening process. The quick-release connector is specifically a quick-release bolt assembly. After the wire shaft 201 completes the rotation and loosening action, the quick-release bolt can be unscrewed to separate the electric reducer 202 from the quick-release platform 204, facilitating the removal of the entire wire shaft 201 from the side of the device for subsequent watchband removal operations.

[0030] In an optional embodiment, the sliding shaft assembly 203 includes a connector 2031 and a vertical shaft 2032. The connector 2031 is fixedly mounted on the lower mold 102 and the base 106. The vertical shaft 2032 is vertically arranged and fixed on the connector 2031. The quick-release platform 204 is sleeved on the vertical shaft 2032 and slidably connected to it.

[0031] In this embodiment, the quick-release platform 204 is provided with a sliding hole, and a roller bushing is installed inside the sliding hole. The roller bushing fits against the outer wall of the vertical shaft 2032, which can reduce the friction of the quick-release platform 204 during the sliding process along the vertical shaft 2032, prevent the quick-release platform 204 from jamming or misaligning, and ensure that the overall lifting process of the quick-release platform 204 is smooth and stable. A locking knob is also provided on the side of the quick-release platform 204. Tightening the locking knob can lock the position of the quick-release platform 204, prevent the wire shaft 201 from accidentally shifting during the molding process, and ensure the molding accuracy of the shaft hole.

[0032] In an optional embodiment, the wire shaft auxiliary assembly 3 is mounted on the lower die 102 and has multiple components arranged in a matrix, evenly distributed among the strap forming grooves 104.

[0033] In this embodiment, any one of the steel wire shaft auxiliary components 3 is arranged between two adjacent watch strap forming grooves 104. When the steel wire shaft auxiliary component 3 lifts the steel wire shaft 201, it can balance the force at each position, so that the steel wire shaft 201 rises at each position with the same distance, avoiding the steel wire shaft 201 tilting locally and causing additional pulling on the watch strap shaft hole, thus reducing the risk of watch strap deformation and damage.

[0034] In an optional embodiment, the wire shaft auxiliary assembly 3 includes a top platform 301, an electric telescopic rod 302, and a lifting plate 303. The top platform 301 is suspended above the lower pressing mold 102. Multiple longitudinal sliding rods 304 are provided between the top platform 301 and the lower pressing mold 102. The bottom end of each sliding rod 304 is fixed to the lower pressing mold 102, and the top end of each sliding rod 304 is fixed to the top platform 301. The top platform 301 and the sliding rods 304 are slidably connected, and the sliding rods 304 restrict the longitudinal sliding of the top platform 301. The electric telescopic rod 302 is longitudinally fixed to the top platform 301, with its output end facing downwards and passing through the top platform 301. The output end of the electric telescopic rod 302 is fixed to the lifting plate 303, which is used to lift the wire shaft.

[0035] In this embodiment, the top platform 301 is used to fix the slide bar 304, and the electric telescopic rod 302 is a commercially available general-purpose miniature DC electric push rod with a limit switch, which can accurately control the lifting stroke of the lifting plate 303 and adapt to the processing needs of different specifications of watch straps.

[0036] In an optional embodiment, a connecting ring 305 is fixedly installed at the bottom end of the top platform 301. The connecting ring 305 can be embedded into the wire shaft placement groove 105, and the wire shaft 201 passes through the connecting ring 305. A storage tank 306 is provided on the top platform 301, and a liquid replenishment cover 307 is fixedly installed on the top platform 301. The liquid replenishment cover 307 and the storage tank 306 are enclosed to form a cooling chamber 308. Liquid nitrogen is replenished in the cooling chamber 308, and a heat-conducting copper rod 309 is fixedly installed in the cooling chamber 308. The upper end of the heat-conducting copper rod 309 is immersed in liquid nitrogen, and the lower end of the heat-conducting copper rod 309 passes through the top platform 301 and contacts the wire shaft 201. The heat-conducting copper rod 309 seals the lower end of the storage tank 306.

[0037] In this embodiment, the wire shaft 201 is preferably made of a metal material that easily conducts heat, such as high-carbon steel, which has excellent thermal conductivity and can quickly transfer its own heat to the heat-conducting copper rod 309. This allows for rapid temperature reduction under the action of liquid nitrogen, shortening the cooling time required for the wire shaft 201 and improving overall processing efficiency. The connecting ring 305 is fitted with the wire shaft 201 with a clearance, which provides radial positioning for the wire shaft 201, preventing significant swaying during rotation, without affecting its normal rotation and extraction. The top of the liquid replenishment cover 307 has a pre-installed liquid replenishment port with a sealing valve. When liquid nitrogen evaporates and is lost, it can be quickly replenished through the replenishment port to maintain the cooling capacity of the cooling chamber 308. This eliminates the need to disassemble the entire structure, making maintenance more convenient. The liquid nitrogen storage tank can periodically replenish the cooling chamber 308 through pipelines to maintain the low-temperature environment inside the cooling chamber 308 and ensure stable heat conduction and cooling effects. The liquid replenishment cover 307 is made of heat-insulating material, which can reduce the conduction of external heat into the cooling chamber 308, reduce the rate of liquid nitrogen evaporation and consumption, and reduce production costs.

[0038] In an optional embodiment, the upper die 101 is provided with a plurality of grooves 107, and the wire shaft auxiliary assembly 3 can be hidden in the grooves 107 after the upper die 101 approaches the lower die 102. An injection hole 108 is installed on the upper die 101 at the corresponding strap forming groove 104.

[0039] In this embodiment, when the mold is closed for compression molding, the upper mold 101 can smoothly press down and fit against the lower mold 102 without being blocked by the steel wire shaft auxiliary component 3, ensuring tight mold closure and uniform and stable pressure during the compression molding process. The injection hole 108 corresponds one-to-one with the strap molding groove 104. Liquid raw materials can be directly injected into the cavity through the material conveying pipeline and injection hole 108, reducing heat loss during the material conveying process and ensuring smooth material filling of the mold.

[0040] In an optional embodiment, the bottom of the lower mold 102 is provided with a cavity structure, which corresponds to the strap forming groove 104. The temperature-changing component 103 includes a circulating liquid pipe 1031, which is installed on one side of the bottom of the lower mold 102.

[0041] In this embodiment, the circulating liquid pipe 1031 is connected to an external temperature control device, which can introduce heat-conducting circulating liquid at different temperatures into the cavity structure to adjust the overall temperature of the lower mold 102, meet the temperature requirements of different stages of the watch strap vulcanization molding and step-by-step cooling, and complete the cooling gradient control in conjunction with the steel wire shaft auxiliary component 3.

[0042] In use, first, the upper mold 101 and the lower mold 102 are closed, and the watchband material is injected into each watchband forming groove 104. At this time, the steel wire shaft 201 has been pre-inserted into the steel wire shaft placement groove 105 and passes through the corresponding watchband forming groove 104, ensuring that the shaft hole position of the watchband is reserved after forming. After the material injection is completed, pressure holding and vulcanization molding is carried out. During this process, the temperature of the mold can be controlled by the temperature-controlled liquid flowing in the cavity structure at the bottom of the lower mold 102 to ensure the stability of the vulcanization molding temperature. After the vulcanization molding is completed, the upper mold 101 is opened. At this time, the heat conduction passage in the cooling chamber 308 is activated, and liquid nitrogen is added to the cooling chamber 308. The low temperature of the liquid nitrogen is quickly conducted to the steel wire shaft 201 below through the heat-conducting copper rod 309, so that the steel wire shaft 201 cools down quickly, forming a temperature difference with the watchband which still maintains a certain temperature. At this time, the steel wire shaft 201 shrinks when it cools down. During the continuous cooling and shrinkage process, the adhesion between it and the watchband will not increase, thus reducing the bonding force between the two. Subsequently, the electric reducer 202 is activated to drive the steel wire shaft 201 to rotate slowly, cutting off the adhesive connections between the surface of the steel wire shaft 201 and the inner wall of the watch strap shaft hole, thus preventing the shaft hole from being deformed due to strong pulling. After the steel wire shaft 201 has been loosened by rotation, the electric telescopic rods 302 of each steel wire shaft auxiliary component 3 are controlled to extend synchronously, driving the lifting plate 303 to pull the lower steel wire shaft 201, causing the entire steel wire shaft 201 to be slowly lifted upward along the vertical axis 2032, lifting the steel wire shaft 201 together with the watch strap formed on it from the watch strap forming groove 104 on the lower mold 102. After the watch strap is detached, the quick-release connector releases the lock on the electric reducer 202, and the steel wire shaft 201 can be removed for the next round of processing. The entire extraction process has a uniform and controllable pulling force, which can avoid damage to the watch strap and deformation of the shaft hole caused by direct strong pulling, effectively improving the efficiency of forming and processing and reducing the product damage rate.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0044] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid prototyping device for smartwatch straps, comprising a mold body (1), characterized in that: It also includes an electric wire shaft assembly (2) and a wire shaft auxiliary assembly (3). The mold body (1) includes an upper mold (101) and a lower mold (102). A temperature-regulating assembly (103) is installed at the bottom of the lower mold (102) to control the temperature of the lower mold (102). The electric wire shaft assembly (2) is located between the upper die (101) and the lower die (102). The electric wire shaft assembly (2) includes a wire shaft (201). The lower die (102) is provided with a plurality of watch strap forming grooves (104) and a wire shaft placement groove (105) through which the watch strap forming grooves (104) are opened. The electric wire shaft assembly (2) is located in the wire shaft placement groove (105) and passes through the watch strap forming groove (104). The wire shaft auxiliary component (3) is used to balance the force of the wire shaft (201) and adjust the position and temperature of the wire shaft (201) to achieve non-destructive separation of the wire shaft (201) from the watch strap.

2. The rapid prototyping device for smartwatch straps according to claim 1, characterized in that: The electric wire shaft assembly (2) also includes an electric reducer (202), a sliding shaft assembly (203), and a quick-release platform (204). The electric reducer (202) is fixedly connected to the quick-release platform (204) through a quick-release connector. A base (106) is fixedly installed at the bottom of the lower pressing mold (102). The sliding shaft assembly (203) is fixedly installed on the base (106) and corresponds to one side of the lower pressing mold (102). The wire shaft (201) is fixedly installed on the output shaft of the electric reducer (202), and the quick-release platform (204) is installed on the sliding shaft assembly (203). The sliding shaft assembly (203) is used to enable the electric reducer (202) and the wire shaft (201) to slide along the vertical axis to ensure that the wire shaft (201) is removed from the wire shaft placement groove (105).

3. The rapid prototyping device for smartwatch straps according to claim 2, characterized in that: The sliding shaft assembly (203) includes a connector (2031) and a vertical shaft (2032). The connector (2031) is fixedly installed on the lower pressing mold (102) and the base (106). The vertical shaft (2032) is vertically arranged and fixed on the connector (2031). The quick-release platform (204) is sleeved on the vertical shaft (2032) and slidably connected to it.

4. The rapid prototyping device for smartwatch straps according to claim 3, characterized in that: The steel wire shaft auxiliary assembly (3) is installed on the lower die (102) and has multiple components arranged in a matrix, which are evenly distributed between the strap forming grooves (104).

5. The rapid prototyping device for smartwatch straps according to claim 4, characterized in that: The steel wire shaft auxiliary assembly (3) includes a top platform (301), an electric telescopic rod (302), and a lifting plate (303). The top platform (301) is suspended above the lower pressing mold (102). Multiple longitudinal sliding rods (304) are provided between the top platform (301) and the lower pressing mold (102). The bottom end of the sliding rod (304) is fixed to the lower pressing mold (102), and the top end of the sliding rod (304) is fixed to the top platform (301). The top platform (301) and the sliding rod (304) are slidably connected. The sliding rod (304) restricts the longitudinal sliding of the top platform (301). The electric telescopic rod (302) is longitudinally fixed on the top platform (301). The output end of the electric telescopic rod (302) faces downward and passes through the top platform (301). The output end of the electric telescopic rod (302) is fixed to the lifting plate (303), which is used to lift the steel wire shaft.

6. The rapid prototyping device for smartwatch straps according to claim 5, characterized in that: A connecting ring (305) is fixedly installed at the bottom of the top platform (301). The connecting ring (305) can be embedded in the wire shaft placement groove (105), and the wire shaft (201) passes through the connecting ring (305). A storage tank (306) is provided on the top platform (301), and a liquid replenishment cover (307) is fixedly installed on the top platform (301). The liquid replenishment cover (307) and the storage tank (306) are enclosed to form a cooling chamber (308). Liquid nitrogen is replenished in the cooling chamber (308), and a heat-conducting copper rod (309) is fixedly installed in the cooling chamber (308). The upper end of the heat-conducting copper rod (309) is immersed in liquid nitrogen, and the lower end of the heat-conducting copper rod (309) passes through the top platform (301) and contacts the steel wire shaft (201). The heat-conducting copper rod (309) seals the lower end of the storage tank (306).

7. The rapid prototyping device for smartwatch straps according to claim 6, characterized in that: The upper die (101) is provided with several grooves (107). The wire shaft auxiliary component (3) can be hidden in the grooves (107) after the upper die (101) approaches the lower die (102). An injection hole (108) is installed on the upper die (101) at the corresponding strap forming groove (104).

8. The rapid prototyping device for smartwatch straps according to claim 7, characterized in that: The bottom of the pressing mold (102) is provided with a cavity structure, which corresponds to the strap forming groove (104). The temperature-changing component (103) includes a circulating liquid pipe (1031), which is installed on one side of the bottom of the pressing mold (102).

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