Prosthetic limb making mold

Abstract

This utility model relates to the field of mold technology and discloses a prosthesis manufacturing mold, including: a base, a servo motor, and a turntable. The servo motor is disposed between the turntable and the base. A forming mold is evenly arranged on the upper end of the turntable. A frame is disposed on the upper end of the base, and an injection molding mechanism is disposed on the outside of the frame. The forming mold includes a lower mold, and an upper mold is disposed on the upper end of the lower mold. A lifting arm connects the lower mold and the upper mold. A cooling water channel is provided in the inner cavity of the lower mold. A cooling pump body is connected to the front of the cooling water channel, and a cooling pipe is connected to the outlet of the cooling pump body. The cooling pipe is connected to the other end of the cooling water channel. This prosthesis manufacturing mold avoids deformation of the molded part due to uneven cooling, ensures the regularity of the shape and the overall quality of the prosthesis molded part, and meets the dual requirements of efficiency and quality in the prosthesis manufacturing process.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold for manufacturing prostheses. Background Technology

[0002] Prosthetic molds are key pieces of equipment in the field of rehabilitation assistive device manufacturing, and their performance directly affects the production efficiency and quality of prosthetic parts. Injection molding is a commonly used process in prosthetic manufacturing, and the structural design of the mold plays a crucial role in the continuity of the production process and the molding effect.

[0003] In existing prosthetic mold making technology, most equipment adopts a single-station operation mode. After injection molding, it is necessary to wait for the molded part to cool down and be removed before the next round of operation can be carried out. This results in significant waiting time during the production process. The cooling structure design of the mold is often not perfect. Although some molds have cooling water channels, they do not form a complete circulation path, or the layout of the cooling water channels does not evenly cover the inner cavity of the mold. This results in slow and uneven cooling of the molded part after injection molding, which can easily cause deformation problems due to excessive local temperature differences. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a prosthesis manufacturing mold to solve the technical problems that the cooling structure design of the aforementioned molds is often not perfect, some molds have cooling water channels but do not form a complete circulation path, or the layout of the cooling water channels does not evenly cover the inner cavity of the mold, resulting in slow and uneven cooling of the molded parts after injection molding, which easily leads to deformation problems due to excessive local temperature differences.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prosthesis manufacturing mold, comprising: a base, a servo motor and a turntable, wherein the servo motor is disposed between the turntable and the base, the upper end of the turntable is uniformly provided with forming molds, the upper end of the base is provided with a frame, and the outside of the frame is provided with an injection molding mechanism;

[0006] The molding die includes a lower die, and an upper die is provided at the upper end of the lower die. A lifting arm is connected between the lower die and the upper die. A cooling water channel is provided in the inner cavity of the lower die. A cooling pump body is connected to the front of the cooling water channel. A cooling pipe is connected to the outlet of the cooling pump body. The cooling pipe is connected to the other end of the cooling water channel.

[0007] After the servo motor starts, it can drive the turntable to rotate stably, so that the molding dies evenly distributed on the turntable can rotate sequentially to the bottom of the injection mechanism; the lifting arm can drive the upper mold to rise and fall relative to the lower mold, realize the opening and closing of the mold, and facilitate subsequent injection and removal of the molded parts; the cooling water channel in the inner cavity of the lower mold forms a cooling circulation path with the cooling pump body and cooling pipes, which can cool down the mold after injection.

[0008] The rotary table with rotating forming mold enables continuous multi-station operation, improving production efficiency; the lifting arm controls the mold opening and closing precisely, ensuring convenient operation; the cooling circulation system can quickly reduce the mold temperature, shorten the cooling time of the prosthesis forming parts, and at the same time avoid deformation of the forming parts due to uneven cooling, ensuring the quality of prosthesis forming.

[0009] Preferably, the bottom of the turntable is evenly provided with sliding arms, and the upper end of the base is equipped with an annular groove block. The upper end of the annular groove block is provided with an annular groove, and the annular groove is slidably connected to the sliding arms.

[0010] When the servo motor drives the turntable to rotate, the sliding arm at the bottom of the turntable will slide synchronously along the annular groove of the annular block on the base. The annular groove provides a motion trajectory guide for the sliding arm.

[0011] The cooperation between the sliding arm and the annular groove can support and guide the turntable, reduce the shaking during the turntable rotation, ensure the stability of the mold position on the turntable, avoid misalignment of the injection molding due to turntable offset, and improve injection molding accuracy.

[0012] Preferably, the injection molding mechanism includes a hopper, a weighing mechanism is provided at the bottom of the hopper, a position sensor is provided at the bottom of the weighing mechanism, and a feed pipe is provided at the bottom of the weighing mechanism through a solenoid valve, and a cylinder is connected between the feed pipe and the weighing mechanism.

[0013] The injection molding raw materials in the hopper are first transported to the weighing mechanism, which accurately weighs the raw materials. The position sensor detects the position of the molding die below in real time. When the molding die moves directly below the feed pipe, the position sensor sends a signal, the cylinder pushes the feed pipe downward, and the solenoid valve opens. The weighed raw materials are then injected into the molding die through the feed pipe.

[0014] The weighing mechanism enables precise measurement of raw materials, avoiding waste or insufficient usage that could affect the quality of prosthetic molding; the position sensor ensures precise alignment between the feed pipe and the molding die; and the cylinder and solenoid valve work together to achieve precise delivery of raw materials, ensuring consistent material usage for each injection and improving the consistency of prosthetic molded parts.

[0015] Preferably, the top of the upper mold is provided with an injection port, the outside of the injection port is provided with a rubber pad, and the inner cavity of the injection port is adapted to the outer wall of the feed pipe.

[0016] When the feed tube moves toward the injection port under the push of the cylinder, the outer wall of the feed tube can fit tightly with the inner cavity of the injection port. The rubber pad outside the injection port is deformed after being squeezed by the feed tube, filling the gap between the feed tube and the injection port.

[0017] The inner cavity of the injection port is matched with the outer wall of the feed tube to ensure smooth material delivery. The rubber gasket acts as a seal to prevent material from leaking from the gap between the feed tube and the injection port during the injection process, reducing material waste. At the same time, it prevents external impurities from entering the mold and contaminating the molded parts, ensuring the cleanliness and quality of the prosthetic parts.

[0018] Preferably, the cooling pump body includes a cooling water tower, with pump bodies connected to both sides of the inner cavity of the cooling water tower, and the two sets of pump bodies are respectively connected to the cooling pipe and the cooling water channel.

[0019] One side pump delivers cooling water from the cooling tower to the cooling pipes. The cooling water then enters the cooling channel of the lower mold, absorbing the heat generated during the injection process. The cooled water, after absorbing heat, is then pumped back to the cooling tower through the other side pump for further cooling, completing the cooling cycle.

[0020] Two sets of pumps drive the cooling water to circulate efficiently, quickly removing heat from the mold, shortening the mold cooling cycle, and improving the production efficiency of prostheses. The cooling tower cools the heat-absorbing cooling water in a timely manner, ensuring a stable cooling effect and preventing problems such as shrinkage cavities and deformation of the molded parts caused by excessively high mold temperatures, thus ensuring the quality of prosthesis molding.

[0021] Preferably, the servo motor is provided with a motor frame on its exterior, and the motor frame is connected to the base by bolts.

[0022] The motor frame encloses and secures the servo motor, and bolts tightly connect the motor frame to the base, forming a stable overall structure between the servo motor and the base.

[0023] The motor frame effectively secures the servo motor, reducing vibration during operation and preventing vibration from being transmitted to the turntable and affecting the stability of the molding die. The bolt connection facilitates the installation and disassembly of the motor frame and the servo motor, making subsequent maintenance or replacement of the servo motor convenient and reducing equipment maintenance costs.

[0024] Compared with the prior art, this utility model provides a mold for manufacturing prostheses, which has the following beneficial effects:

[0025] This prosthesis manufacturing mold uses a servo motor to drive a turntable to rotate stably, allowing the evenly distributed molding dies on the turntable to rotate sequentially to the injection molding mechanism. This enables continuous multi-station operation, effectively improving the production efficiency of prosthesis manufacturing and avoiding the waiting time associated with single-station operations. The cooling water channels in the lower mold cavity, along with the cooling pump and cooling pipes, form a complete cooling circulation path, which can quickly cool the mold after injection molding. This shortens the cooling time of the prosthesis molding parts and prevents deformation caused by uneven cooling, ensuring the regularity of the prosthesis molding parts' shape and overall quality, thus meeting the dual requirements of efficiency and quality in the prosthesis manufacturing process. Attached Figure Description

[0026] Figure 1 This is a front view of the present utility model;

[0027] Figure 2 This is a plan view of the present invention;

[0028] Figure 3 This is a schematic diagram of the external shape of the molding die of this utility model.

[0029] In the diagram: 1. Base; 11. Annular groove block; 12. Sliding arm; 2. Servo motor; 21. Motor frame; 3. Turntable; 4. Injection molding mechanism; 41. Frame; 5. Molding mold; 51. Lower mold; 52. Lifting arm; 53. Upper mold; 54. Cooling pump body; 55. Cooling pipe. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model provides a technical solution, please refer to Figure 1 , Figure 2 and Figure 3 A prosthesis manufacturing mold includes: a base 1, a servo motor 2 and a turntable 3. The servo motor 2 is disposed between the turntable 3 and the base 1. A molding mold 5 is evenly disposed on the upper end of the turntable 3. A frame 41 is disposed on the upper end of the base 1. An injection molding mechanism 4 is disposed on the outside of the frame 41.

[0032] The molding die 5 includes a lower die 51, an upper die 53 is provided at the upper end of the lower die 51, a lifting arm 52 is connected between the lower die 51 and the upper die 53, a cooling water channel is provided in the inner cavity of the lower die 51, a cooling pump body 54 is connected to the front of the cooling water channel, a cooling pipe 55 is connected to the outlet of the cooling pump body 54, and the cooling pipe 55 is connected to the other end of the cooling water channel.

[0033] After the servo motor 2 is started, it can drive the turntable 3 to rotate stably, so that the molding molds 5 evenly distributed on the turntable 3 can rotate sequentially to the bottom of the injection mechanism 4; the lifting arm 52 can drive the upper mold 53 to rise and fall relative to the lower mold 51, realize the opening and closing of the mold, and facilitate subsequent injection and removal of the molded parts; the cooling water channel in the inner cavity of the lower mold 51, together with the cooling pump body 54 and the cooling pipe 55, forms a cooling circulation path, which can cool down the mold after injection.

[0034] The turntable 3 with the forming mold 5 rotates to enable continuous multi-station operation and improve production efficiency; the lifting arm 52 controls the mold opening and closing precisely to ensure convenient operation; the cooling circulation system can quickly reduce the mold temperature, shorten the cooling time of the prosthesis molding parts, and at the same time avoid deformation of the molding parts due to uneven cooling, thus ensuring the quality of prosthesis molding.

[0035] The bottom of the turntable 3 is evenly provided with sliding arms 12, and the upper end of the base 1 is equipped with an annular groove block 11. The upper end of the annular groove block 11 is provided with an annular groove, and the annular groove is slidably connected to the sliding arm 12.

[0036] When the servo motor 2 drives the turntable 3 to rotate, the sliding arm 12 at the bottom of the turntable 3 will slide synchronously along the annular groove of the annular block 11 on the base 1. The annular groove provides a motion trajectory guide for the sliding arm 12.

[0037] The cooperation between the sliding arm 12 and the annular groove can support and guide the turntable 3, reduce the shaking of the turntable 3 during rotation, ensure the stability of the mold 5 on the turntable 3, avoid misalignment of the injection molding due to the offset of the turntable 3, and improve the injection molding accuracy.

[0038] The injection molding mechanism 4 includes a hopper, a weighing mechanism at the bottom of the hopper, a position sensor at the bottom of the weighing mechanism, and a feed pipe at the bottom of the weighing mechanism via a solenoid valve. A cylinder connects the feed pipe to the weighing mechanism.

[0039] The injection molding raw material in the hopper is first transported to the weighing mechanism, which accurately weighs the raw material. The position sensor detects the position of the molding die 5 below in real time. When the molding die 5 moves directly below the feed pipe, the position sensor sends a signal, the cylinder pushes the feed pipe downward, and at the same time the solenoid valve opens, and the weighed raw material is injected into the molding die 5 through the feed pipe.

[0040] The weighing mechanism enables precise measurement of raw materials, avoiding waste or insufficient usage that could affect the quality of prosthetic molding; the position sensor ensures precise alignment between the feed pipe and the molding die 5; and the cylinder and solenoid valve work together to achieve precise delivery of raw materials, ensuring consistent material usage for each injection and improving the consistency of prosthetic molded parts.

[0041] The top of the upper mold 53 is provided with an injection port, and a rubber pad is provided on the outside of the injection port. The inner cavity of the injection port is adapted to the outer wall of the feed tube.

[0042] When the feed tube moves toward the injection port under the push of the cylinder, the outer wall of the feed tube can fit tightly with the inner cavity of the injection port. The rubber pad outside the injection port is deformed after being squeezed by the feed tube, filling the gap between the feed tube and the injection port.

[0043] The inner cavity of the injection port is matched with the outer wall of the feed tube to ensure smooth material delivery. The rubber gasket acts as a seal to prevent material from leaking from the gap between the feed tube and the injection port during the injection process, reducing material waste. At the same time, it prevents external impurities from entering the mold and contaminating the molded parts, ensuring the cleanliness and quality of the prosthetic parts.

[0044] The cooling pump body 54 includes a cooling water tower, and pump bodies are connected to both sides of the inner cavity of the cooling water tower. The two sets of pump bodies are respectively connected to the cooling pipe 55 and the cooling water channel.

[0045] One side pump transports cooling water from the cooling tower to the cooling pipe 55. The cooling water enters the cooling channel of the lower mold 51 through the cooling pipe 55, absorbing the heat generated by the mold during the injection process. The cooled water after absorbing heat is then transported back to the cooling tower through the other side pump for cooling, completing the cooling cycle.

[0046] Two sets of pumps drive the cooling water to circulate efficiently, quickly removing heat from the mold, shortening the mold cooling cycle, and improving the production efficiency of prostheses. The cooling tower cools the heat-absorbing cooling water in a timely manner, ensuring a stable cooling effect and preventing problems such as shrinkage cavities and deformation of the molded parts caused by excessively high mold temperatures, thus ensuring the quality of prosthesis molding.

[0047] The servo motor 2 is externally mounted with a motor frame 21, which is connected to the base 1 by bolts.

[0048] The motor frame 21 encloses and fixes the servo motor 2, and the motor frame 21 is tightly connected to the base 1 by bolts, so that the servo motor 2 and the base 1 form a stable overall structure.

[0049] The motor frame 21 effectively fixes the servo motor 2, reducing the vibration of the servo motor 2 during operation and preventing the vibration from being transmitted to the turntable 3 and affecting the stability of the molding die 5. The bolt connection method facilitates the installation and disassembly of the motor frame 21 and the servo motor 2, and makes subsequent maintenance or replacement of the servo motor 2 convenient, reducing equipment maintenance costs.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prosthetic fabrication mold, comprising: The base (1), servo motor (2) and turntable (3) are provided, wherein the servo motor (2) is disposed between the turntable (3) and the base (1), characterized in that: the upper end of the turntable (3) is uniformly provided with molding molds (5), the upper end of the base (1) is provided with a frame (41), and the outside of the frame (41) is provided with an injection molding mechanism (4). The forming mold (5) includes a lower mold (51), an upper mold (53) is provided at the upper end of the lower mold (51), a lifting arm (52) is connected between the lower mold (51) and the upper mold (53), a cooling water channel is provided in the inner cavity of the lower mold (51), a cooling pump body (54) is connected to the front of the cooling water channel, a cooling pipe (55) is connected to the outlet of the cooling pump body (54), and the cooling pipe (55) is connected to the other end of the cooling water channel.

2. A prosthesis-making mold according to claim 1, characterized in that: The bottom of the turntable (3) is evenly provided with sliding arms (12), and the upper end of the base (1) is equipped with an annular groove block (11). The upper end of the annular groove block (11) is provided with an annular groove, and the annular groove is slidably connected to the sliding arm (12).

3. A prosthesis-making mold according to claim 1, characterized in that: The injection molding mechanism (4) includes a hopper, a weighing mechanism at the bottom of the hopper, a position sensor at the bottom of the weighing mechanism, and a feed pipe at the bottom of the weighing mechanism via a solenoid valve. A cylinder is connected between the feed pipe and the weighing mechanism.

4. A prosthesis-making mold according to claim 3, characterized in that: The top of the upper mold (53) is provided with an injection port, and a rubber pad is provided on the outside of the injection port. The inner cavity of the injection port is adapted to the outer wall of the feed tube.

5. A prosthesis-making mold according to claim 1, characterized in that: The cooling pump body (54) includes a cooling water tower, and pump bodies are connected to both sides of the inner cavity of the cooling water tower. The two sets of pump bodies are respectively connected to the cooling pipe (55) and the cooling water channel.

6. A prosthesis-making mold according to claim 1, characterized in that: The servo motor (2) is provided with a motor frame (21) on its exterior, and the motor frame (21) is connected to the base (1) by bolts.

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