Micro motor plastic end cover forming device and method

Abstract

The invention provides a micro motor plastic end cover forming device and method, and belongs to the technical field of forming devices.The micro motor plastic end cover forming device comprises an operation base table and a press-fit mold providing the shape, two sets of supporting strips are arranged on the two sides of the inner wall of the operation base table, a supporting column is arranged in the middle of the operation base table, and multiple sets of supporting feet are fixedly connected to the two sets of supporting strips and the supporting column; two groups of first guide rails and second guide rails are respectively arranged on the top of the operation base table and the multiple groups of supporting legs, one sides of the first guide rails and the second guide rails are respectively provided with a lower pressing die table, the two groups of first guide rails are fixedly connected with a pressing operation table through multiple groups of bolts, and a pressing assembly is arranged on the pressing operation table. According to the device, the lower pressing mold table and the pressing mold can be driven to move, so that the device is more accurate in the mold mounting, moving and positioning process, the device can stably and continuously produce high-quality plastic end covers, uncertainty caused by manual intervention is reduced, the overall stability and reliability of the device are improved, and the defective rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of molding equipment technology, and more specifically, to a molding device and method for a micro motor plastic end cap. Background Technology

[0002] In the manufacturing industry, various molding devices are often used to produce parts. For example, in the production of micro motors, production workers often use plastic end cap molding devices to manufacture suitable plastic end caps. In this case, the molding device is needed to shape the plastic raw material to obtain micro motor plastic end caps that meet specifications.

[0003] However, traditional molding equipment often requires manual operation to extrude the mold, resulting in low production efficiency. Because the speed and force of manual operation are difficult to maintain consistently, the extrusion time varies, failing to meet the demands of large-scale production.

[0004] Moreover, manual operation is physically demanding for workers, and prolonged operation can easily lead to worker fatigue, further affecting the speed of operation.

[0005] Meanwhile, manual operation makes it difficult to guarantee the correct extrusion force of the mold each time, resulting in inconsistent quality of the produced plastic end caps. Due to improper extrusion force, some end caps may have uneven wall thickness. During subsequent use of the micro motor, this can easily lead to the end caps cracking due to uneven stress. This not only affects the normal operation of the micro motor and reduces the overall quality of the product, but also increases production costs due to the high defect rate, thereby reducing the company's competitiveness in the market. Summary of the Invention

[0006] In view of the aforementioned problems, and in conjunction with the first aspect of the present invention, embodiments of the present invention provide a micro motor plastic end cap molding apparatus and method, the apparatus comprising: A micro motor plastic end cap molding device includes an operating base and a pressing mold for providing the shape. The device is characterized by: two sets of support bars on both sides of the inner wall of the operating base; a support column in the middle of the operating base; multiple sets of support feet fixedly connected to both sets of support bars and the support column; two sets of first guide rails and second guide rails respectively on the top of the operating base and the multiple sets of support feet; a lower pressing mold platform on one side of both the first and second guide rails; and a pressing operating platform fixedly connected to both sets of first guide rails by multiple sets of bolts. A pressing assembly is provided on the pressing operating platform.

[0007] According to a preferred embodiment, the pressing assembly includes multiple sets of guide pillars, which are inserted through the pressing operation table. A lower pressure plate is inserted through the multiple sets of guide pillars, and an upper pressure mold is fixedly connected to the lower pressure plate. Protective nets are installed on both sides of the pressing operation table.

[0008] According to a preferred embodiment, the pressing operation table is provided with two sets of cylinders, and one end of each set of cylinders passes through the pressing operation table and is fixedly connected to the lower pressing plate. The lower pressing mold table is detachably connected to the pressing mold.

[0009] According to a preferred embodiment, the inner wall of the pressing mold is provided with protrusions and grooves adapted to the shape of the end cap, the bottom center of the pressing mold is provided with a through hole for ejecting the forming mold, the middle of the lower pressing platform is provided with a leak-proof top post adapted to the through hole, and two sets of sliding grooves are provided on one side of the lower pressing platform, and a condenser is provided at the bottom of the pressing mold.

[0010] According to a preferred embodiment, the top of the upper pressing mold platform is provided with a placement groove, and a heating tube for heating is inserted in the placement groove. After the heating tube is installed, the sealing cover plate provided on the top of the placement groove is connected to the upper pressing mold platform by multiple sets of fixing bolts. One end of the upper pressing mold platform is adapted to the shape of one end of the pressing mold.

[0011] According to a preferred embodiment, protective plates are provided on both sides of the operating base. Two sets of protective plates are connected to two sets of transmission shafts through bearings. One set of protective plates is provided with two sets of motors at one end, and the shaft ends of the two sets of motors are connected to the transmission shafts. The two sets of lower pressing molds are respectively sleeved on the transmission shafts.

[0012] According to a preferred embodiment, an ejector plate is fixedly connected to one side of both the first guide rail and the second guide rail. Multiple sets of positioning protrusions are provided on both sets of ejector plates, and through holes are provided in the middle of both sets of ejector plates. Positioning and fixing plates are welded to one side of the first guide rail and both sides of the second guide rail. Positioning pins are provided on both sides of both sets of positioning and fixing plates, and one end of each set of positioning pins is adapted to the positioning groove provided in the pressing mold.

[0013] According to a preferred embodiment, the operating base is provided with four sets of partition plates, two of which are provided with two sets of ejector components, and the two sets of ejector components are respectively located below the ejector placement plate. The two sets of ejector components are respectively located between the first guide rail and the second guide rail. Each ejector component includes a U-shaped column, which is fixed to two of the partition plates. A connecting rod is slidably connected to the U-shaped column, and an ejector column is welded to the top of the connecting rod. Two sets of electric push rods are fixedly connected to the U-shaped column, and one end of each set of electric push rods is connected to the connecting rod.

[0014] According to a preferred embodiment, a support frame for feeding support is provided at half the length of the second guide rail, and an output pipe is provided on the support frame. A set of partition plates is provided with a storage box for plastic particles. One end of the output pipe passes through the second guide rail and is connected to an external instrument inside the storage box, and the output end of the output pipe is located between the first guide rail and the second guide rail.

[0015] A molding method, using the aforementioned micro motor plastic end cap molding device, includes the following steps: Step 1: Mold installation; Install the pressing mold on the lower pressing mold platform, and insert the anti-leakage top post of the lower pressing mold platform into the bottom through hole of the mold; install the heating tube into the placement slot of the upper pressing mold platform, and cover it with a sealing cover plate to fix it; install the condenser at the bottom of the pressing mold, and push the positioning and fixing plate pin into the positioning slot of the mold to complete the fixation; Step Two: Mold Movement and Material Feeding; Start the two sets of motors on the protection plate, which drive the lower pressing mold and the pressing mold to move along the first guide rail and the second guide rail through the transmission shaft; when the mold moves to the support frame, start the feeding instrument connected to the output pipe to transport the plastic granules in the storage box to the mold cavity and then turn off the instrument; Step 3: Compression molding The drive motor moves the loading mold directly below the pressing operation table; the two sets of cylinders on the table are activated to push the lower pressure plate and move the upper pressing mold table down along the guide column to press with the mold; the heating tube is turned on to heat up the upper pressing mold table, and the condenser is started to cool the mold, maintaining the pressure until the molding is completed; Step 4: Mold removal and placement Turn off the heating element and wait for the mold to cool down. Then, control the cylinder to reset the upper pressure platen. Start the motor to drive the transmission shaft to reverse so that the lower pressure platen carries the mold out of the pressing position. After stopping the machine, remove the mold and place it on the ejector plate, aligning the holes on both. Step 5: Demolding and Recycling Start the ejector below the ejector plate. The electric push rod pushes the connecting rod to drive the ejector pin through the hole, ejecting the molded end cap from the mold. After removing the finished product, reset the ejector and repeat steps two to five for continuous production.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This device, through the design of automated components and positioning structures, enables the production of plastic end caps, improving both production quality and efficiency. The device uses the first and second guide rails on the operating base, along with the drive shaft and motor, to move the lower pressing table and the pressing mold. This ensures greater accuracy during mold installation, movement, and positioning, enhancing the device's operational precision. Furthermore, the coordination of the positioning protrusions, perforations, positioning fixing plates, and positioning pins on the ejector plate further ensures the positioning of the pressing mold at each stage, preventing product quality issues caused by inaccurate positioning.

[0017] 2. When using this device, the pressure and temperature during the pressing process can be controlled through the coordinated operation of the cylinders, guide columns, heating tubes, and condensers in the pressing assembly. This allows the device to adapt to the molding requirements of different plastic raw materials, improving its adaptability to various materials. Furthermore, through automated molding methods, from mold installation, feeding, pressing, to demolding, the device can stably and continuously produce high-quality plastic end caps. This reduces the uncertainty caused by manual intervention, improves the overall stability and reliability of the device, lowers the defect rate, and enhances the company's competitiveness in the market. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembled structure of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a schematic diagram of the ejector component structure; Figure 5 This is a schematic diagram of the internal structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the upper pressure mold table; Figure 7 This is a structural diagram of the pressing mold and the lower pressing platform.

[0019] In the diagram, the correspondence between component names and their corresponding reference numerals is as follows: 11. Operating base; 12. Pressing mold; 13. Support bar; 14. Support column; 15. Support foot; 16. First guide rail; 17. Second guide rail; 18. Lower pressing mold table; 19. Lower pressing plate; 22. Upper pressing mold table; 23. Leak-proof ejector column; 24. Condenser; 25. Heating tube; 26. Sealing cover plate; 27. Protective plate; 28. Ejection placement plate; 29. ​​Positioning and fixing plate; 31. Divider plate; 32. U-shaped column; 33. Ejection column; 34. Support frame; 35. Storage box; 107. Pressing operating table; 108. Guide column. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings; like Figures 1 to 2 As shown, the present invention provides a micro motor plastic end cap molding device, including an operating base 11 and a pressing mold 12 providing the shape. Two sets of support bars 13 are provided on both sides of the inner wall of the operating base, and a support column 14 is provided in the middle of the operating base. Multiple sets of support feet 15 are fixedly connected to the two sets of support bars 13 and the support column 14. Two sets of first guide rails 16 and second guide rails 17 are respectively provided on the top of the operating base and the multiple sets of support feet 15. A lower pressing mold platform 18 is provided on one side of the first guide rail 16 and the second guide rail 17. A pressing operating platform 107 is fixedly connected to the two sets of first guide rails 16 by multiple sets of bolts. A pressing component is provided on the pressing operating platform.

[0021] Specifically, the operating base 11 serves as the foundation structure of the entire molding device. Support bars 13 on both sides of the inner wall are connected to the operating base, enhancing its lateral support and making the device more stable in the horizontal direction. Support columns 14, located in the center of the operating base, are the main load-bearing components in the vertical direction of the entire device. They are integrally formed with the operating base or connected in other ways to ensure they can support the weight of the components above. Support feet 15 are evenly distributed on the support bars 13 and support columns 14. They are connected to the support bars 13 and support columns 14 through specific connection methods (such as bolt connections, welding, etc.), distributing pressure and further enhancing the stability of the entire device relative to the placement plane, preventing shaking or displacement during operation. The first guide rail 16 and the second guide rail 17 are respectively installed on the top of the operating base and above the support feet 15. The guide rails are fixed to the operating base and support feet through welding, providing a sliding track for the lower pressing mold table 18. The lower pressing mold 18 cooperates with the guide rail, enabling the lower pressing mold 18 to move smoothly along the guide rail, facilitating the transportation of the pressing mold 12 placed on the lower pressing mold 18 to the designated working position. The pressing operation table 107 is fixed on the first guide rail 16 by multiple sets of evenly distributed bolts.

[0022] The pressing assembly includes multiple sets of guide pillars 108, which are mounted on the pressing operating table 107. A lower pressure plate 19 is mounted on each of the guide pillars 108, and an upper pressure mold table 22 is fixedly connected to the lower pressure plate 19. Protective nets are installed on both sides of the pressing operating table 107. Specifically, the guide pillars 108 are vertically mounted on the pressing operating table 107 and are connected to the pressing operating table 107 by a connection or other reliable fixing method to ensure that there is no loosening or displacement during operation. The main function of the guide pillars 108 is to guide the lifting and lowering movement of the lower pressure plate 19, allowing the lower pressure plate 19 to move vertically up and down along the direction of the guide pillars 108, ensuring the stability of the pressing process. The lower pressure plate 19 bears the pressure from above during the pressing process, as well as its own weight and the weight of the upper pressure mold table 22. The lower pressure plate 19 has guide holes adapted to the guide post 108. These guide holes ensure that the lower pressure plate 19 can slide smoothly on the guide post 108. The lower pressure plate 19 is connected to the upper pressure mold table 22 in a suitable manner, so that they can work together during the pressing process to apply uniform pressure to the pressing mold 12 placed on the lower pressure mold table 18. Protective nets are installed on both sides of the pressing operation table 107 and are fixed to the sides of the pressing operation table 107 by bolts or other connection methods. The main function of the protective nets is to prevent debris, flash, and other foreign matter that may be generated during the pressing process from flying out and causing injury to the operators, while also helping to maintain a clean working environment.

[0023] The pressing operation table is equipped with two sets of cylinders, and one end of each set of cylinders passes through the pressing operation table 107 and is fixedly connected to the lower pressing plate 19. The lower pressing mold table 18 is detachably connected to the pressing mold 12.

[0024] Specifically, the cylinder, as the component providing the pressing force, is connected to the pressing operation table 107. One end of the cylinder passes through a pre-drilled through hole in the pressing operation table 107 and is then fixed to the lower pressure plate 19 via a threaded connection or other connection method. When the cylinder operates, the extension and retraction of the piston rod drives the lower pressure plate 19 to move vertically along the guide post 108, thereby realizing the pressing action between the upper pressure mold table 22 and the pressing mold 12 on the lower pressure mold table 18. This method allows the cylinder to control the stroke and pressure of the lower pressure plate 19, ensuring the stability and consistency of the pressing process. The lower pressure mold table 18 and the pressing mold 12 are connected in a detachable manner. The positioning structure ensures that the pressing mold 12 has an accurate position when installed on the lower pressure mold table 18, ensuring the accuracy of the pressing; while the fastening structure can fix the pressing mold 12 on the lower pressure mold table 18, preventing it from loosening or shifting during the pressing process, and allowing for quick replacement of the corresponding pressing mold 12, improving the versatility of the device and production efficiency.

[0025] The inner wall of the pressing mold 12 has protrusions and grooves that match the shape of the end cap. The bottom center of the pressing mold 12 has a through hole for ejecting the forming mold. The middle of the lower pressing mold 18 has a leak-proof top post 23 that matches the through hole. The lower pressing mold 18 has two sets of sliding grooves on one side. The bottom of the pressing mold 12 has a condenser 24.

[0026] Specifically, the pressing mold 12 is the component that determines the shape and size of the plastic end cap for the micro motor. Its inner wall is machined according to the three-dimensional model of the end cap, with protrusions and grooves that match the shape of the end cap to ensure a proper fit. The through hole in the middle of the bottom of the pressing mold 12 is designed to accommodate the ejection mechanism. After the end cap is formed, the ejection mechanism can push the formed end cap out of the mold through this through hole. The anti-leakage ejector 23 in the middle of the lower pressing platform 18 is adapted to the through hole at the bottom of the pressing mold 12. It plays a role in preventing the plastic material from leaking from the bottom of the mold during the pressing process. At the same time, it can also provide a certain support force for the end cap during ejection to ensure a smooth ejection process. The two sets of sliding grooves on one side of the lower pressing platform 18 facilitate the movement and positioning of the mold in conjunction with other components. The condenser 24 penetrating the bottom of the pressing mold 12 is a component used to control the mold temperature. During the pressing process, the condenser 24 removes heat from the mold through circulating coolant, keeping the mold within a suitable temperature range.

[0027] The top of the upper pressing platform 22 is provided with a placement groove, and a heating tube 25 for heating is inserted in the placement groove. After the heating tube 25 is installed, the sealing cover plate 26 provided on the top of the placement groove is connected to the upper pressing platform 22 by multiple sets of fixing bolts. One end of the upper pressing platform 22 is adapted to the shape of one end of the pressing mold 12.

[0028] Specifically, the placement groove on the top of the upper molding platform 22 is machined according to the external dimensions of the heating tube 25. Its shape and size are adapted to the heating tube 25, ensuring that the heating tube 25 can be installed in the placement groove without shaking or displacement during operation. The function of the heating tube 25 is to provide heat to the upper molding platform 22, enabling it to maintain a suitable temperature during the pressing process, which helps the flow and molding of the plastic material. After the heating tube 25 is installed, the sealing cover plate 26 on the top of the placement groove is connected to the upper molding platform 22 by multiple sets of evenly distributed fixing bolts. The main function of the sealing cover plate 26 is to reduce heat loss, improve heating efficiency, and protect the heating tube 25 from external factors. This ensures that the upper molding platform 22 and the pressing mold 12 can fit together during the pressing process, guaranteeing the uniform transmission of pressing force. This allows the plastic material to be evenly filled and molded in the mold cavity, improving the quality of the end cap.

[0029] Both sides of the operating base 11 are provided with protective plates 27. Two sets of protective plates 27 are connected to two sets of transmission shafts through bearings. One set of protective plates 27 is provided with two sets of motors at one end, and the ends of the two sets of motor shafts are connected to the transmission shaft. Two sets of lower pressing molds 18 are respectively sleeved on the transmission shaft.

[0030] Specifically, protective plates 27 are installed on both sides of the operating base 11. Their main function is to protect the transmission components inside the operating base 11 and ensure the safety of the operators. Protective plates 27 are connected to the sides of the operating base 11 by bolts, welding, or other means to ensure that they will not loosen or fall off during operation. Two sets of drive shafts are mounted on the protective plates 27 via bearings. One end of one set of protective plates 27 is equipped with two motors, which are connected to one end of the drive shaft via couplings or other transmission devices. The output shaft of the motor drives the drive shaft to rotate. Two sets of lower pressing molds 18 are respectively fitted onto the drive shafts via keyed connections, splined connections, or other connection methods. When the drive shaft rotates, the lower pressing molds 18 move along with the rotation of the drive shaft. Simultaneously, due to the cooperation between the lower pressing molds 18 and the guide rails, the lower pressing molds 18 can also move linearly along the guide rails, thus achieving a combined movement of the lower pressing molds 18 on the operating base 11, facilitating the transportation of the pressing molds 12 to different working positions.

[0031] like Figures 2 to 5 As shown, both the first guide rail 16 and the second guide rail 17 are fixedly connected to one side of an ejector plate 28. Both sets of ejector plates 28 have multiple sets of positioning protrusions, and both sets of ejector plates 28 have through holes in the middle. Both sets of first guide rail 16 and the second guide rail 17 are welded to one side of each other and to both sides of each other. Both sets of positioning plates 29 have positioning pins on both sides, and one end of each set of positioning pins is adapted to the positioning groove opened in the pressing mold 12.

[0032] Specifically, the ejector plate 28 is fixed to one side of the first guide rail 16 and the second guide rail 17, providing a stable placement platform for ejection after the end cap is formed. Multiple sets of positioning protrusions are provided on the ejector plate 28. The position and shape of these protrusions match the positioning structure at the bottom of the pressing mold 12. Through the cooperation of the positioning protrusions and the pressing mold 12, the pressing mold 12 is ensured to have an accurate position when placed on the ejector plate 28, guaranteeing the accuracy of the ejection process. The through hole in the middle of the ejector plate 28 corresponds to the ejection through hole at the bottom of the pressing mold 12. When ejecting the end cap, the ejector component can push the end cap out of the pressing mold 12 through the through hole and the ejection through hole. Positioning fixing plates 29 are welded to one side of the two sets of first guide rails 16 and both sides of the second guide rail 17, connecting to the guide rails by welding to ensure no loosening during operation. Positioning pins are provided on both sides of the positioning fixing plates 29, one end of which is adapted to the positioning groove provided in the pressing mold 12. When the pressing mold 12 is placed on the ejector plate 28, the positioning pin is inserted into the positioning groove of the pressing mold 12 to further position the pressing mold 12 and prevent displacement of the pressing mold 12 during the ejection process, ensuring the smooth progress of the ejection operation. The operating base 11 is provided with four sets of partition plates 31, two of which are provided with two sets of ejector components, and the two sets of ejector components are located below the ejector plate 28, and are located between the first guide rail 16 and the second guide rail 17. The ejector component includes a U-shaped column 32, which is fixed on two of the partition plates 31. A connecting rod is slidably connected to the U-shaped column 32, and an ejector column 33 is welded to the top of the connecting rod. Two sets of electric push rods are fixedly connected to the U-shaped column 32, and one end of each set of electric push rods is connected to the connecting rod.

[0033] Specifically, four sets of partition plates 31 are installed on the operating base 11, dividing the internal space of the operating base 11 and providing a basis for the installation and positioning of other components. Two sets of ejector components are installed on two sets of partition plates 31. The ejector components are positioned below the ejector placement plate 28 and between the first guide rail 16 and the second guide rail 17. This layout allows the ejector components to eject the pressing mold 12 after the end cap is formed. The ejector components mainly consist of a U-shaped column 32, a connecting rod, an ejector column 33, and an electric push rod. The U-shaped column 32 is fixed to the partition plate 31 by welding or bolting, providing a support structure for the entire ejector component. The connecting rod is slidably connected within the U-shaped column 32, and the connection between the connecting rod and the U-shaped column 32 is ensured by a linear bearing or other sliding fit, ensuring that the connecting rod can move smoothly up and down within the U-shaped column 32. An ejector post 33 is welded to the top of the connecting rod. The shape and size of the ejector post 33 are set according to the ejection structure of the pressing mold 12 so that it can contact the pressing mold 12 during the ejection process and push the end cap out of the mold. Two sets of electric push rods are fixedly connected to the U-shaped post 32. The electric push rods are connected to the U-shaped post 32 through the mounting base, and one end of the electric push rod is connected to the connecting rod. The electric push rods serve as the power source for the ejector, and drive the connecting rod and the ejector post 33 to move up and down through telescopic movement, thereby realizing the ejection action of the end cap.

[0034] A support frame 34 for feeding support is provided at half the length of the second guide rail 17. An output pipe is passed through the support frame 34. A set of partition plates 31 is provided with a storage box 35 for plastic particles. One end of the output pipe passes through the second guide rail 17 and is connected to an external instrument inside the storage box 35. The output end of the output pipe is located between the first guide rail 16 and the second guide rail 17.

[0035] Specifically, the support frame 34 is positioned at half the length of the second guide rail 17, ensuring that the output pipe can be mounted on the support frame 34 without shaking or deformation during operation. The output pipe passes through the support frame 34 to ensure that the plastic granules can be smoothly conveyed to the pressing mold 12. One end of the output pipe passes through the second guide rail 17 and connects to external instruments (such as feeders, metering devices, etc.) inside the storage tank 35. The external instruments are responsible for quantitatively conveying the plastic granules in the storage tank 35 into the output pipe. The output end of the output pipe is located between the first guide rail 16 and the second guide rail 17. This position ensures that the plastic granules can fall into the cavity of the pressing mold 12 placed on the lower pressing platform 18, realizing an automatic feeding function and providing raw materials for the molding of the micro motor plastic end cap.

[0036] A molding method for a micro motor plastic end cap molding device

[0037] Step 1: Mold Installation

[0038] The pressing mold 12 is installed on the lower pressing mold 18, so that the anti-leakage ejector pin 23 of the lower pressing mold 18 is inserted into the through hole at the bottom of the mold. This step ensures that the plastic material will not leak from the bottom of the mold during subsequent injection molding, and at the same time provides the necessary structural support for the ejection end cap after molding.

[0039] The heating element 25 is inserted into the placement slot of the upper pressing platform 22, and then the sealing cover 26 is used to secure it. The placement slot at the top of the upper pressing platform 22 is designed according to the external dimensions of the heating element 25 to accommodate it and reduce heat loss. The sealing cover 26 is then placed on top and tightened with the fixing bolts to further secure the position of the heating element 25 and enhance the heat preservation effect.

[0040] Install the condenser 24 at the bottom of the pressing mold 12, and push the pin of the positioning and fixing plate 29 into the mold positioning groove to complete the fixation. When installing the condenser 24, ensure that it is installed stably and that the coolant circulation channel is connected correctly. Insert the pin of the positioning and fixing plate 29 into the mold positioning groove to fix the pressing mold 12 in the current position and ensure that the mold will not be displaced in subsequent operations.

[0041] Step 2: Mold movement and feeding

[0042] The two sets of motors on the protection plate 27 are activated, driving the lower pressing mold 18 and the pressing mold 12 to move along the first guide rail 16 and the second guide rail 17 via the drive shaft. The two sets of motors on the protection plate 27 serve as power sources; after starting, their output shafts drive the drive shaft connected to them to rotate. Since the lower pressing mold 18 is mounted on the drive shaft and has a sliding fit with the first guide rail 16 and the second guide rail 17, the rotation of the drive shaft drives the lower pressing mold 18 to move smoothly along the guide rails, thereby causing the pressing mold 12 to move together.

[0043] When the mold moves to the support frame 34, the feeding instrument connected to the output pipe is activated to transport the plastic granules in the storage tank 35 to the mold cavity, and then the instrument is closed. When the pressing mold 12 moves to the support frame 34 at half the length of the second guide rail 17, it reaches the feeding position. At this time, the feeding instrument (such as a metering pump, screw feeder, etc.) is activated. These instruments can control the amount of plastic granules conveyed in the storage tank 35, and transport the plastic granules to the cavity of the pressing mold 12 through the output pipe. After the cavity is properly filled, the instrument is closed, completing the feeding operation and providing raw material preparation for pressing and molding.

[0044] Step 3: Compression molding

[0045] The drive motor moves the loading mold to the underside of the pressing operation table 107, precisely controlling the movement of the lower pressing mold table 18 and the pressing mold 12 to accurately reach the position directly under the pressing operation table 107, preparing for the pressing operation.

[0046] Two sets of cylinders on the starting platform push the lower pressure plate 19, causing the upper pressure mold 22 to move downwards along the guide column 108 and press against the mold. The cylinder piston rod extends, pushing the lower pressure plate 19 vertically downwards along the guide column 108. Because the upper pressure mold 22 is fixedly connected to the lower pressure plate 19, the downward movement of the lower pressure plate 19 causes the upper pressure mold 22 to descend synchronously until the upper pressure mold 22 contacts the pressing mold 12 and applies pressure. The guide column 108 provides guidance for the movement of the lower pressure plate 19 and the upper pressure mold 22, ensuring the verticality and stability of the pressing process.

[0047] The heating element 25 is turned on to heat the upper pressure mold 22, while the condenser 24 is activated to cool the mold, maintaining stable pressure until molding is complete. The heating element 25 uses the heat generated by its high thermal conductivity material to heat the upper pressure mold 22, keeping it within a suitable temperature range for the flow and molding of plastic granules, which helps the plastic granules better fill the mold cavity and form. The condenser 24 is activated simultaneously, using circulating coolant to remove excess heat from the mold, preventing the mold from overheating and affecting the molding quality, thus completing molding under stable pressure.

[0048] Step 4: Mold removal and placement

[0049] After the heating element 25 is turned off and the mold cools down, the control cylinder drives the upper pressure platen 22 to reset. After the plastic end cap is shaped, the heating element 25 is turned off to stop heating. At this time, the mold temperature is high, and it needs to be cooled down through natural heat dissipation or continuous operation of the condenser 24 to avoid damage to the mold and the molded end cap due to high temperature. After cooling down to a suitable level, the control cylinder piston rod retracts, driving the lower pressure plate 19 and the upper pressure platen 22 to move upward along the guide post 108 to return to the initial position.

[0050] The starter motor drives the drive shaft to reverse, causing the lower pressure mold 18 to move the mold out of the pressing position. After stopping the machine, the mold is removed and placed on the ejector plate 28, aligning the perforations. The starter motor on the protection plate 27 drives the drive shaft to reverse, which in turn drives the lower pressure mold 18 to move in opposite directions along the first guide rail 16 and the second guide rail 17, moving it out of the pressing operation area. After the mold is moved to the appropriate position, the machine stops, and the pressing mold 12 is removed and placed on the ejector plate 28, ensuring that the perforation at the bottom of the mold is aligned with the perforation in the middle of the ejector plate 28, in preparation for the demolding operation.

[0051] Step 5: Demolding and Recycling

[0052] The ejector assembly below the ejector plate 28 is activated. The electric push rod drives the connecting rod, causing the ejector column 33 to pass through the perforation, ejecting the molded end cap from the mold. After the mold is positioned and the perforation is aligned, the ejector assembly below the ejector plate 28 is activated. The electric push rod in the ejector assembly acts as the power source. The piston rod extends and pushes the connecting rod to move upward along the U-shaped column 32. The ejector column 33 welded to the top of the connecting rod rises synchronously, passing through the ejector plate 28 and the perforation at the bottom of the pressing mold 12, ejecting the molded micro-motor plastic end cap from the mold.

[0053] After removing the finished product, reset the ejector component and repeat steps two through five for continuous production. After the end cap is ejected, manually remove the finished end cap and control the electric push rod piston rod to retract, so that the connecting rod and ejector column 33 return to their initial positions to complete the reset of the ejector component.

[0054] Then repeat steps two through five, that is, start the motor again to drive the lower pressing table 18 and the new pressing mold 12 to move to the feeding position for feeding, and then perform pressing, molding, removal and demolding operations to realize the continuous production of micro motor plastic end caps.

[0055] It should be noted that, in order to simplify the description of the present invention and thus help to understand one or more embodiments of the invention, multiple features may sometimes be grouped into one embodiment, drawing or description thereof in the foregoing description of the embodiments of the present invention.

Claims

1. A micro motor plastic end cap molding device, comprising an operating base (11) and a pressing mold (12) for providing the shape, characterized in that: The operating base (11) has two sets of support bars (13) on both sides of the inner wall. The operating base (11) has a support column (14) in the middle. Multiple sets of support feet (15) are fixedly connected to both sets of support bars (13) and support columns (14). The top of the operating base (11) and the multiple sets of support feet (15) are respectively provided with two sets of first guide rails (16) and second guide rails (17). A lower pressing mold table (18) is provided on one side of both the first guide rail (16) and the second guide rail (17). A pressing operating table (107) is fixedly connected to the two sets of first guide rails (16) by multiple sets of bolts. A pressing component is provided on the pressing operating table (107).

2. The micro motor plastic end cap molding device according to claim 1, characterized in that: The pressing assembly includes multiple sets of guide pillars (108), which are inserted through the pressing operation table (107). A lower pressure plate (19) is inserted through the multiple sets of guide pillars (108), and an upper pressure mold table (22) is fixedly connected to the lower pressure plate (19). Protective nets are installed on both sides of the pressing operation table (107).

3. The micro motor plastic end cap molding device according to claim 2, characterized in that: The pressing operation table (107) is equipped with two sets of cylinders, and one end of each set of cylinders passes through the pressing operation table (107) and is fixedly connected to the lower pressure plate (19). The lower pressure mold table (18) is detachably connected to the pressing mold (12).

4. The micro motor plastic end cap molding device according to claim 3, characterized in that: The inner wall of the pressing mold (12) is provided with protrusions and grooves that are adapted to the shape of the end cap. The bottom center of the pressing mold (12) is provided with a through hole for ejecting the forming mold. The middle of the lower pressing mold platform (18) is provided with a leak-proof top column (23) that is adapted to the through hole. The lower pressing mold platform (18) is provided with two sets of sliding grooves on one side. The bottom of the pressing mold (12) is provided with a condenser (24).

5. The micro motor plastic end cap molding device according to claim 4, characterized in that: The upper pressing platform (22) has a placement groove on its top, and a heating tube (25) for heating is inserted in the placement groove. After the heating tube (25) is installed, the sealing cover plate (26) on the top of the placement groove is connected to the upper pressing platform (22) by multiple sets of fixing bolts. One end of the upper pressing platform (22) is adapted to the shape of one end of the pressing mold (12).

6. The micro motor plastic end cap molding device according to claim 1, characterized in that: The operating base (11) is provided with protective plates (27) on both sides. Two sets of the protective plates (27) are provided with two sets of transmission shafts through bearings. One set of the protective plates (27) is provided with two sets of motors at one end, and the shaft ends of the two sets of motors are connected to the transmission shaft. The two sets of lower pressing molds (18) are respectively sleeved on the transmission shaft.

7. The micro motor plastic end cap molding device according to claim 6, characterized in that: The first guide rail (16) and the second guide rail (17) are both fixedly connected to one side of an ejector plate (28). Multiple sets of positioning protrusions are provided on both sets of ejector plates (28), and through holes are provided in the middle of both sets of ejector plates (28). Positioning fixing plates (29) are welded to one side of the first guide rail (16) and both sides of the second guide rail (17). Positioning pins are provided on both sides of both sets of positioning fixing plates (29). One end of each set of positioning pins is adapted to the positioning groove provided in the pressing mold (12).

8. The micro motor plastic end cap molding device according to claim 7, characterized in that: The operating base (11) is provided with four sets of partition plates (31), two of which are provided with two sets of ejector components, and the two sets of ejector components are located below the ejector placement plate (28). The two sets of ejector components are located between the first guide rail (16) and the second guide rail (17). The ejector component includes a U-shaped column (32), which is fixed on two of the partition plates (31). A connecting rod is slidably connected to the U-shaped column (32), and an ejector column (33) is welded to the top of the connecting rod. Two sets of electric push rods are fixedly connected to the U-shaped column (32), and one end of each set of electric push rods is connected to the connecting rod.

9. The micro motor plastic end cap molding device according to claim 8, characterized in that: A support frame (34) for feeding support is provided at half the length of the second guide rail (17). An output pipe is provided on the support frame (34). A set of partition plates (31) is provided with a storage box (35) for plastic particles. One end of the output pipe passes through the second guide rail (17) and is connected to an external instrument inside the storage box (35). The output end of the output pipe is located between the first guide rail (16) and the second guide rail (17).

10. A molding method, employing a micro motor plastic end cap molding device as described in any one of claims 1-9, characterized in that, It includes the following steps: Step 1: Mold installation; Install the pressing mold (12) on the lower pressing mold platform (18), so that the anti-leakage top post (23) of the lower pressing mold platform (18) passes through the bottom through hole of the mold; install the heating tube (25) into the placement groove of the upper pressing mold platform (22), and cover it with the sealing cover plate (26) for fixation; install the condenser (24) at the bottom of the pressing mold (12), and push the pin of the positioning and fixing plate (29) into the positioning groove of the mold to complete the fixation; Step Two: Mold Movement and Material Feeding; Start the two sets of motors on the protection plate (27), and drive the lower pressing table (18) and pressing mold (12) to move along the first guide rail (16) and the second guide rail (17) through the transmission shaft; when the mold moves to the support frame (34), start the feeding instrument connected to the output pipe, and transport the plastic particles in the storage box (35) to the mold cavity and then close the instrument; Step 3: Compression molding; The drive motor moves the loading mold to the bottom of the pressing operation table (107); the two sets of cylinders on the table are activated to push the lower pressure plate (19) to drive the upper pressing mold table (22) to move down along the guide column (108) and press with the mold; the heating tube (25) is turned on to heat up the upper pressing mold table (22), and the condenser (24) is started to cool the mold and keep the pressure stable until the molding is completed; Step 4: Mold removal and placement; After the heating tube (25) is turned off and the mold is cooled down, the control cylinder drives the upper pressing platen (22) to reset; the motor is started to drive the transmission shaft to reverse, so that the lower pressing platen (18) carries the mold out of the pressing position. After the machine is stopped, the mold is removed and placed on the ejector platen (28), and the holes of the two are aligned. Step 5: Demolding and recycling; Start the ejector below the ejector plate (28), the electric push rod pushes the connecting rod to drive the ejector column (33) through the hole, and ejects the molded end cap from the mold; after removing the finished product, reset the ejector and repeat steps two to five for continuous production.

Images