Disc shoe bottom forming machine

Abstract

The application relates to the technical field of shoe sole forming equipment, in particular to a disc type shoe sole forming machine which comprises a rotating workbench, a mold assembly, a driving mechanism, a cooling and shaping device and an intelligent control module. The rotating workbench is driven by a servo motor to realize forward and reverse rotation switching and accurate positioning; the mold assembly adopts a quick-release locking mechanism to facilitate replacement and maintenance; the cooling and shaping device realizes accurate cooling through a temperature control module and an air flow distributor; the intelligent control module integrates a touch screen and a process database to support automatic operation and rapid adaptation. A lubricating system supplies oil for bearings at regular time intervals to prolong the service life of the equipment. The application can improve multi-process coordination efficiency, simplify the maintenance process, enhance the intelligent level of the equipment and is suitable for efficient and intelligent shoe sole production requirements.

Description

Technical Field

[0001] This utility model belongs to the technical field of footwear manufacturing equipment, specifically a disc-type shoe sole forming machine. Background Technology

[0002] With the continuous development of shoe sole forming equipment, various shoe sole forming machines have been widely used in the footwear industry. However, these machines still have some problems in actual use. For example, shoe sole forming machines on the market usually adopt fixed molds or single-station processing methods, resulting in low production efficiency and difficulty in meeting the needs of multi-process integration. In addition, some machines lack automation in mold switching, material supply, and cooling and shaping, increasing the need for manual intervention and affecting overall production efficiency and product quality.

[0003] A search revealed a rotary EVA sole secondary foaming molding machine and its molding method, with publication number CN107953501B, published on October 20, 2023. This design utilizes a rotary structure to achieve multi-station mold switching, combined with a lifting pressure plate for secondary foaming and cooling / shaping operations. While this structure improves processing efficiency, its rotary table only supports rotation in one direction, limiting mold position adjustment and resulting in poor adaptability to complex processes. Furthermore, the lack of an intelligent control system hinders rapid adaptation to different sole models, restricting its application in multi-variety, small-batch production scenarios.

[0004] A search revealed a shoe sole injection molding machine with publication number CN112157865B, published on November 8, 2024. This design achieves rapid opening, closing, and locking of the mold frame by setting up a push rod assembly and a locking handle, solving the problem of material leakage in traditional shoe molds. However, the turntable drive mechanism of this equipment is relatively complex and lacks an efficient lubrication system, making it prone to wear due to long-term operation, thus affecting the stability and service life of the equipment. Furthermore, the equipment does not provide a convenient quick-release device for mold replacement and maintenance, increasing the workload of operators and reducing production efficiency.

[0005] The aforementioned problems indicate that traditional shoe sole forming machines currently on the market still have significant shortcomings in terms of multi-station collaborative operation, automated control, and ease of equipment maintenance. Therefore, this invention provides a disc-type shoe sole forming machine to overcome these deficiencies and achieve a highly efficient, intelligent, and easy-to-maintain shoe sole forming solution. Utility Model Content

[0006] This utility model relates to the technical field of shoe sole forming equipment, specifically a disc-type shoe sole forming machine. Currently, traditional shoe sole forming machines have shortcomings in terms of multi-station collaborative operation, automated control, and ease of maintenance. For example, fixed molds or single-station processing methods cannot meet the needs of multi-process integration. Some equipment lacks intelligent control systems and efficient lubrication systems, and mold replacement is inconvenient, affecting production efficiency and equipment lifespan.

[0007] This utility model provides the following technical solution: a disc-type shoe sole forming machine, comprising a rotary worktable, a mold assembly, a drive mechanism, a cooling and shaping device, and an intelligent control module. A main shaft is centrally located on the rotary worktable, connected to a base via bearings. A circular worktable surface is fixedly mounted on the top of the main shaft. Multiple mold mounting slots are evenly distributed on the circular worktable surface, with the number of slots ranging from 6 to 12 depending on process requirements. A mold assembly is installed in each mold mounting slot, and the mold assembly is connected and fixed to the slot via a quick-release locking mechanism. The quick-release locking mechanism includes a locking block and an elastic buckle. One end of the locking block is connected to the side wall of the mold mounting slot via a hinge, and the other end is engaged with the outer wall of the mold assembly via the elastic buckle. The inner side of the elastic buckle is provided with anti-slip teeth to enhance connection stability.

[0008] The drive mechanism includes a servo motor, a transmission gear set, and a limit sensor. The servo motor is fixedly mounted inside the base, and its output shaft is connected to the main shaft via a coupling. A gear ring is mounted on the outer wall of the main shaft, meshing with the transmission gear set, which consists of multiple planetary gears fixed to the base by a bracket. The limit sensor is installed at the edge of the base to detect the rotation angle of the rotary table and feeds a signal back to the intelligent control module. After receiving the signal from the limit sensor, the intelligent control module controls the start, stop, and direction of the servo motor through a program, thereby achieving forward and reverse rotation switching and precise positioning of the rotary table.

[0009] The cooling and shaping device includes a cooling duct, a temperature control module, and an airflow distributor. The cooling duct is arranged around the outside of the rotary table. The inlet of the cooling duct connects to an external cold air source, and the outlet connects to the mold assembly via the airflow distributor. The airflow distributor includes multiple branch pipes, each corresponding to a mold mounting slot. An adjustable airflow valve is installed at the end of each branch pipe, driven by a stepper motor electrically connected to the intelligent control module. The temperature control module is installed at the inlet of the cooling duct to monitor and adjust the airflow temperature entering the cooling duct in real time, ensuring that the cooling effect meets process requirements.

[0010] The mold assembly includes an upper mold and a lower mold, which are connected by guide pillars. The two ends of the guide pillars are embedded in guide holes in the upper and lower molds, respectively. The inner walls of the guide holes are coated with a wear-resistant coating to reduce friction loss. The top of the upper mold has a sprue port, which is connected to an external injection molding system via a hose. The bottom of the lower mold has a vent, which is connected to a vacuum pump via a pipe to remove air from the mold. Heating elements are installed on the outer wall of the mold assembly. These heating elements are connected to a temperature control module via wires. The temperature control module adjusts the power of the heating elements according to preset process parameters to achieve constant temperature control of the mold.

[0011] The intelligent control module includes a central processing unit (CPU), a touchscreen, and a communication interface. The CPU is electrically connected to the servo motors, stepper motors, temperature control module, and limit sensors via the communication interface. The touchscreen, mounted on the equipment's control panel, displays the operating status and allows for the input of process parameters. The intelligent control module has a built-in process database for various shoe sole models. Operators can select the corresponding shoe sole model via the touchscreen, and the CPU automatically adjusts the servo motor speed, cooling duct temperature, and heating element power based on the selected model, thus achieving rapid adaptation to different shoe sole models.

[0012] A lubrication system is installed at the bottom of the rotary table, comprising an oil tank, an oil pump, and a distributor. The oil tank is fixedly installed inside the base, and the oil pump is connected to the tank via pipes. The distributor is installed at the bearing location of the spindle, and its outlet end has multiple nozzles facing the rolling elements and raceway surfaces of the bearing. The oil pump is controlled to start and stop via a timer, which is electrically connected to an intelligent control module. The intelligent control module automatically activates the lubrication system based on the equipment's operating time, ensuring that the bearings are always well lubricated.

[0013] This invention solves the problems existing in current shoe sole forming machines through the above-mentioned technical solutions. The forward and reverse switching function of the rotary worktable improves the flexibility of the process flow and can adapt to complex multi-process requirements; the intelligent control module realizes automated operation and rapid adaptation of the equipment, reducing manual intervention; the quick-release locking mechanism simplifies the mold replacement process and improves maintenance efficiency; the introduction of a lubrication system extends the service life of the equipment. These technical means work together to form an efficient, intelligent, and easy-to-maintain shoe sole forming solution. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0016] The attached diagram is labeled as follows: 1. Rotary worktable; 2. Mold assembly; 3. Drive mechanism; 4. Cooling and shaping device; 5. Quick-release locking mechanism; 6. Cooling air duct; 7. Airflow distributor; 8. Valve; 9. Intelligent control module; 10. Touch screen. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] like Figures 1 to 2 As shown in the figure, this utility model provides a specific embodiment of a disc-type shoe sole forming machine. The equipment mainly includes a rotary worktable 1, a mold assembly 2, a drive mechanism 3, a cooling and shaping device 4, and an intelligent control module 9. The structure of each component and its connection, position, and mutual cooperation are described in detail below with reference to the accompanying drawings.

[0020] The rotary worktable 1 is the core component of the entire equipment, comprising a spindle and a circular worktable surface. The spindle is connected to the base via bearings located inside the base, and the circular worktable surface is fixedly mounted on top of the spindle. Multiple mold mounting slots are evenly distributed on the circular worktable surface. The number of mold mounting slots is set from 6 to 12 depending on the process requirements; in this embodiment, 8 mold mounting slots are used to meet the needs of multi-station processing. Each mold mounting slot contains a mold assembly 2, which is connected and fixed to the mold mounting slot via a quick-release locking mechanism 5. The quick-release locking mechanism 5 includes a locking block and an elastic buckle. One end of the locking block is connected to the side wall of the mold mounting slot via a hinge, and the other end is engaged with the outer wall of the mold assembly 2 via the elastic buckle. The inner side of the elastic buckle is provided with anti-slip teeth to enhance connection stability. In actual operation, when it is necessary to replace the mold assembly 2, the operator only needs to manually open the elastic buckle to quickly disassemble and replace the mold assembly 2.

[0021] The drive mechanism 3 includes a servo motor, a transmission gear set, and a limit sensor. The servo motor is fixedly installed inside the base, and its output shaft is connected to the main shaft via a coupling. A gear ring is provided on the outer wall of the main shaft, meshing with the transmission gear set. The transmission gear set consists of multiple planetary gears, which are fixed to the base by a bracket. The limit sensor is installed at the edge of the base to detect the rotation angle of the rotary table 1 and feeds the signal back to the intelligent control module 9. After receiving the signal from the limit sensor, the intelligent control module 9 controls the start, stop, and direction of the servo motor through a program, thereby realizing the forward and reverse switching of the rotary table 1 and precise positioning. During actual operation, the servo motor drives the main shaft to rotate, and the gear ring on the main shaft meshes with the transmission gear set, transmitting power to the rotary table 1, causing it to rotate gradually according to a preset angle. The limit sensor monitors the position of the rotary table 1 in real time and transmits the signal to the intelligent control module 9, ensuring that the rotary table 1 can accurately stop at the designated work position.

[0022] The cooling and shaping device 4 includes a cooling duct 6, a temperature control module, and an airflow distributor 7. The cooling duct 6 is arranged around the outside of the rotating worktable 1. The inlet end of the cooling duct 6 is connected to an external cold air source, and the outlet end is connected to the mold assembly 2 via the airflow distributor 7. The airflow distributor 7 includes multiple branch pipes, each corresponding to a mold mounting slot. An adjustable airflow valve 8 is installed at the end of each branch pipe. The valve 8 is driven by a stepper motor, which is electrically connected to the intelligent control module 9. The temperature control module is installed at the inlet of the cooling duct 6 to monitor and adjust the airflow temperature entering the cooling duct 6 in real time. In actual operation, the cold air supplied by the external cold air source enters the cooling duct 6 after being regulated by the temperature control module, and is then distributed to each branch pipe via the airflow distributor 7. The valve 8 of each branch pipe adjusts its opening according to the instructions of the intelligent control module 9, thereby controlling the flow rate of cold air entering the mold assembly 2 and ensuring that the cooling effect meets the process requirements.

[0023] Mold assembly 2 includes an upper mold and a lower mold, which are connected by guide pillars. The two ends of the guide pillars are embedded in guide holes in the upper and lower molds, respectively. The inner walls of the guide holes are coated with a wear-resistant layer to reduce friction loss. The top of the upper mold has a sprue, which is connected to an external injection molding system via a hose. The bottom of the lower mold has a vent, which is connected to a vacuum pump via a pipe to remove air from the mold. Heating elements are installed on the outer wall of mold assembly 2, and these elements are connected to a temperature control module via wires. In actual operation, the injection molding system injects molten material into mold assembly 2 through the sprue, while the vacuum pump removes air from the mold through the vent to prevent air bubbles. The heating elements adjust their power according to the instructions of the temperature control module to maintain a constant temperature in mold assembly 2, ensuring that the molten material is evenly distributed and rapidly molded within the mold.

[0024] The intelligent control module 9 includes a central processing unit (CPU), a touchscreen 10, and a communication interface. The CPU is electrically connected to the servo motor, stepper motor, temperature control module, and limit sensors via the communication interface. The touchscreen 10 is mounted on the equipment's operation panel and is used to display the operating status and input process parameters. The intelligent control module 9 has a built-in process database for various shoe sole models. Operators can select the corresponding shoe sole model via the touchscreen 10. The CPU automatically adjusts the servo motor speed, the temperature of the cooling duct 6, and the power of the heating element based on the selected model, thereby achieving rapid adaptation to different shoe sole models. In actual operation, the operator inputs the required shoe sole model via the touchscreen 10. The CPU then calls the corresponding process parameters and sends instructions to each actuator, such as controlling the servo motor speed to adjust the rotation speed of the rotary table 1, or adjusting the temperature of the cooling duct 6 to meet the cooling requirements of a specific shoe sole.

[0025] A lubrication system is installed at the bottom of the rotary table 1, comprising an oil tank, an oil pump, and a distributor. The oil tank is fixedly installed inside the base, and the oil pump is connected to the oil tank via pipes. The distributor is installed at the bearing location of the spindle, and its outlet end has multiple nozzles facing the rolling elements and raceway surfaces of the bearing. The oil pump is controlled to start and stop via a timer, which is electrically connected to the intelligent control module 9. During actual operation, the intelligent control module 9 automatically starts the lubrication system according to the equipment's operating time. The oil pump draws lubricating oil from the oil tank and delivers it to the nozzles through the distributor. The nozzles evenly spray the lubricating oil onto the rolling elements and raceway surfaces of the bearing, ensuring that the bearing always maintains good lubrication and extending the service life of the equipment.

[0026] In practical applications, the workflow of this invention is as follows: First, the operator selects the desired sole model via the touchscreen 10. The central processing unit calls the corresponding process parameters and sends instructions to each execution component. The servo motor drives the rotary table 1 to rotate according to the instructions, positioning the first mold assembly 2 at the injection station. The injection system injects molten material into the mold assembly 2 through the injection port, while the vacuum pump removes air from the mold through the exhaust port. The heating element adjusts its power according to the instructions of the temperature control module to maintain a constant temperature for the mold assembly 2. Subsequently, the rotary table 1 continues to rotate, sequentially sending the mold assemblies 2 to the cooling station. The cold air in the cooling duct 6, after being regulated by the temperature control module, enters the airflow distributor 7 and is then distributed to each mold assembly 2 through branch pipes. The valve 8 adjusts its opening according to the instructions of the intelligent control module 9 to ensure that the cooling effect meets the process requirements. Finally, the rotary table 1 sends the cooled and shaped mold assembly 2 to the demolding station, where the operator quickly disassembles the mold assembly 2 and removes the finished sole using the quick-release locking mechanism 5. Throughout the process, the lubrication system automatically starts according to the equipment's running time, ensuring that the bearings always maintain good lubrication.

[0027] The specific embodiments of this utility model have been described above. The forward and reverse switching function of the rotary worktable 1 improves the flexibility of the process flow; the intelligent control module 9 enables automated operation and rapid adaptation of the equipment; the quick-release locking mechanism 5 simplifies the mold replacement process; and the introduction of the lubrication system extends the service life of the equipment. These technical means work together to form an efficient, intelligent, and easy-to-maintain shoe sole molding solution. To better enable those skilled in the art to fully understand and implement this utility model, the specific implementation principles of this utility model are further explained below in conjunction with a specific application scenario.

[0028] In actual production, the operator first selects the desired sole model via touchscreen 10. Upon receiving the input signal, the central processing unit (CPU) retrieves the parameters corresponding to that sole model from its built-in process database and sends instructions to each execution component. For example, the servo motor adjusts the rotation speed and direction of the rotary table 1 according to the instructions to ensure that the mold assembly 2 accurately reaches the injection station. At this time, the limit sensor monitors the position of the rotary table 1 in real time and feeds the signal back to the intelligent control module 9, thereby achieving precise positioning. When the mold assembly 2 reaches the injection station, the external injection system injects molten material into the mold assembly 2 through the injection port, while the vacuum pump removes air from the mold through the exhaust port to prevent air bubbles from forming. The heating element adjusts its power according to the instructions from the temperature control module to maintain a constant temperature in the mold assembly 2, ensuring that the molten material is evenly distributed within the mold and forms a rapid mold.

[0029] Subsequently, the rotary table 1 continues to rotate, delivering the injection-molded mold assembly 2 to the cooling station. During this process, the cold air in the cooling duct 6, after being regulated by the temperature control module, enters the airflow distributor 7 and is then distributed to each mold assembly 2 via branch pipes. The valve 8 at the end of each branch pipe is driven by a stepper motor, which adjusts the opening of the valve 8 according to the instructions of the intelligent control module 9, thereby precisely controlling the flow rate of cold air entering the mold assembly 2. This design ensures that the cooling effect meets the process requirements of different shoe sole models, while avoiding product quality problems caused by uneven cooling. Furthermore, the temperature control module monitors the airflow temperature at the inlet of the cooling duct 6 in real time and dynamically adjusts the output of the cold air source through a feedback mechanism, further improving the stability and controllability of the cooling process.

[0030] After mold assembly 2 has cooled and solidified, the rotary table 1 transports it to the demolding station. The operator quickly disassembles mold assembly 2 using the quick-release locking mechanism 5 to remove the finished shoe sole. The quick-release locking mechanism 5 makes mold replacement more convenient: the operator only needs to manually open the elastic buckle to easily separate mold assembly 2 from the mold mounting slot. The anti-slip serrations on the inside of the elastic buckle enhance connection stability, while the hinge structure ensures the operational flexibility of the locking block. This design significantly reduces the time required for mold replacement and improves the overall operating efficiency of the equipment.

[0031] Throughout the production process, the lubrication system automatically starts based on the equipment's operating time. The oil pump draws lubricating oil from the tank and delivers it to the nozzles via a distributor. The nozzles evenly spray the lubricating oil onto the rolling elements and raceway surfaces of the spindle bearing, ensuring the bearings are always well-lubricated. This timed lubrication mechanism not only reduces bearing wear but also extends the equipment's service life. The intelligent control module 9 controls the oil pump's start and stop via a timer, ensuring the lubrication system's operation matches the equipment's actual needs.

[0032] In summary, this invention achieves multi-station processing flexibility through the forward and reverse switching function of the rotary worktable 1, meeting the needs of complex processes; the introduction of the intelligent control module 9 enables automated operation and rapid adaptation of the equipment, reducing manual intervention; the quick-release locking mechanism 5 simplifies the mold replacement process and improves maintenance efficiency; and the application of the lubrication system effectively extends the service life of the equipment. These technical means work together to form an efficient, intelligent, and easy-to-maintain shoe sole molding solution.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A disc sole forming machine characterized by, It includes a rotary worktable (1), a mold assembly (2), a drive mechanism (3), a cooling and shaping device (4), and an intelligent control module (9). The rotary worktable (1) has a spindle at its center, which is connected to the base through a bearing. A circular worktable is fixedly installed on the top of the spindle. Multiple mold mounting slots are evenly distributed on the circular worktable. A mold assembly (2) is installed in each mold mounting slot. The mold assembly (2) is connected and fixed to the mold mounting slot through a quick-release locking mechanism (5).

2. The disc sole forming machine according to claim 1, characterized in that, The quick-release locking mechanism (5) includes a locking block and an elastic buckle. One end of the locking block is connected to the side wall of the mold mounting groove through a hinge, and the other end is engaged with the outer wall of the mold assembly (2) through the elastic buckle. The inner side of the elastic buckle is provided with anti-slip teeth.

3. The disc sole forming machine according to claim 1, wherein, The drive mechanism (3) includes a servo motor, a transmission gear set and a limit sensor. The servo motor is fixedly installed inside the base. The output shaft of the servo motor is connected to the main shaft through a coupling. A gear ring is provided on the outer wall of the main shaft. The gear ring meshes with the transmission gear set. The limit sensor is installed at the edge of the base to detect the rotation angle of the rotary table (1).

4. The disc sole forming machine according to claim 1, wherein, The cooling and shaping device (4) includes a cooling air duct (6), a temperature control module and an airflow distributor (7). The cooling air duct (6) is arranged around the outside of the rotating worktable (1). The inlet end of the cooling air duct (6) is connected to an external cold air source, and the outlet end is connected to the mold assembly (2) through the airflow distributor (7). The airflow distributor (7) includes multiple branch pipes, each branch pipe corresponding to a mold mounting slot. The end of the branch pipe is equipped with a valve (8) that can adjust the air volume.

5. The disc sole forming machine according to claim 4, characterized in that, The valve (8) is driven by a stepper motor, which is electrically connected to the intelligent control module (9). The temperature control module is installed at the inlet of the cooling air duct (6) to monitor and adjust the airflow temperature entering the cooling air duct (6) in real time.

6. The disc sole forming machine according to claim 1, wherein, The mold assembly (2) includes an upper mold and a lower mold. The upper mold and the lower mold are connected by guide pillars. The two ends of the guide pillars are respectively embedded in the guide holes of the upper mold and the lower mold. The inner wall of the guide hole is provided with a wear-resistant coating. The top of the upper mold is provided with an injection port, which is connected to an external injection molding system through a hose. The bottom of the lower mold is provided with an exhaust hole, which is connected to a vacuum pump through a pipe.

7. The disc sole forming machine according to claim 6, characterized in that, The outer wall of the mold assembly (2) is provided with a heating element, which is connected to the temperature control module through a wire.

8. The disc sole forming machine according to claim 1, wherein, The intelligent control module (9) includes a central processing unit, a touch screen (10) and a communication interface. The central processing unit is electrically connected to the servo motor, stepper motor, temperature control module and limit sensor through the communication interface. The touch screen (10) is installed on the operation panel of the device.

9. The disc sole forming machine according to claim 1, wherein, The bottom of the rotary table (1) is provided with a lubrication system, which includes an oil tank, an oil pump and a distributor. The oil tank is fixedly installed inside the base, the oil pump is connected to the oil tank through a pipe, and the distributor is installed at the bearing part of the spindle. The outlet end of the distributor is provided with multiple nozzles, which face the rolling elements and raceway surfaces of the bearing.

10. The disc sole forming machine according to claim 9, characterized in that, The oil pump is controlled to start and stop by a timer, which is electrically connected to the intelligent control module (9).

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