Hybrid insulator self-clamping forming equipment

Abstract

The utility model provides a hybrid insulator self-clamping molding device, which relates to the technical field of injection molding, and comprises a mold, a right-angle injection system connected with the top of the mold, a hydraulic mold locking mechanism for driving the mold to move in a positioning manner, and an embedded hydraulic locking mechanism for adjusting the locking force of the mold, the mold comprises an upper mold base, a runner plate, an upper mold, a lower mold, a heating plate and a lower mold base, the right-angle injection system comprises an injection unit and a supporting frame, the injection unit is composed of a feeding mechanism, a plasticizing mechanism and an injection mechanism, the feeding mechanism feeds materials to the plasticizing mechanism to be plasticized, the plasticized materials enter the injection mechanism, and the injection mechanism is used for injecting the materials into the runner plate; after the injection mechanism injects plasticized materials into the runner plate, the plasticized materials are distributed to the four runner pipes and then enter the mold cavity to complete the injection process. Therefore, the purpose of automatic forming can be achieved, and the problem of complex production operation is solved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a self-clamping molding equipment for hybrid insulators. Background Technology

[0002] Injection molding is a widely used plastic processing method. It involves injecting molten plastic into a mold using an injection molding machine, which then cools and solidifies to obtain the desired product. Injection molding offers advantages such as high production efficiency, low cost, and strong adaptability, and is widely used in various fields including automotive, electronics, medical, and home appliances. In the injection molding process, the clamping system plays a crucial role. It is responsible for tightly locking the moving and fixed molds, ensuring that the molten plastic does not overflow from the mold gaps under high pressure, thus guaranteeing product quality and precision. Simultaneously, the clamping system needs to have rapid and accurate opening and closing capabilities to adapt to the high-efficiency production rhythm of the injection molding machine. Early injection molding machine clamping systems mostly used mechanical clamping mechanisms, using levers, linkages, and other mechanical components to lock and open the mold. With the development of hydraulic technology, hydraulic clamping mechanisms have gradually replaced mechanical clamping mechanisms, becoming the mainstream clamping system for injection molding machines.

[0003] Chinese utility model patent CN220883172U provides a vertical clamping double-lower-mold covering molding die for hybrid insulators, including an upper die, a first lower die, and a second lower die with identical structures. The upper die is pressed together with the first lower die and the second lower die to form a molding cavity for the hybrid insulator. The upper die includes an upper die base, a positioning plate, at least one shovel base, and a flow channel plate. The first lower die includes a first lower die base, a core at its center, and a side slider. A sliding mechanism is provided between the side slider and the first lower die. The vertical clamping double lower die and the upper die interact to form a molding process that enables automated production of hybrid insulators, hybrid supports, and other high-voltage porcelain products. Combined with robotic loading and unloading, this significantly improves production efficiency.

[0004] However, the hybrid insulator vertical clamping double lower mold covering molding die provided by the above patent has the problem of complicated production operation and lack of automation when mass-producing. Therefore, a solution is needed to improve this problem. Utility Model Content

[0005] The purpose of this invention is to provide a double-lower-mold covering molding die for vertical clamping of hybrid insulators, which can achieve the goal of automated molding and avoid the problem of complicated production operations.

[0006] This utility model provides a vertical clamping double-lower-mold overmolding mold for hybrid insulators, including a mold and a right-angle injection system connected to the top of the mold, a hydraulic locking mechanism for driving the mold's positioning and movement, and an embedded hydraulic locking mechanism for adjusting the mold's locking force. The mold includes an upper mold base, a runner plate, an upper mold, a lower mold, a heating plate, and a lower mold base. The right-angle injection system includes a feeding mechanism, a plasticizing mechanism, an injection mechanism, and a support frame. The injection unit consists of a feeding mechanism, a plasticizing mechanism, and an injection mechanism. The feeding mechanism feeds the material to the plasticizing mechanism for plasticization. After plasticization, the material enters the injection mechanism, which injects the plasticized material into the runner plate. The plasticized material is then distributed into four runner tubes and enters the mold cavity to complete the injection process.

[0007] By adopting the above technical solution, during the mold closing and molding process, the feeding mechanism can feed the plasticizing mechanism, and then the plasticizing mechanism can plasticize the material. The plasticized material is then introduced into the upper mold base through the injection mechanism, and then diverted to the mold cavity to complete the injection. In this way, the feeding, plasticizing and molding of the material can be automated.

[0008] Optionally, the hydraulic clamping mechanism includes a hydraulic cylinder, a Green column, and multiple connecting rods distributed on all four sides. The hydraulic clamping mechanism is located directly below the injection working position. The connecting rods are sleeved on the lower mold base. The hydraulic cylinder drives the lower mold base in the mold, thereby causing the lower mold fixedly installed above the lower mold base to move vertically upward to the mold closing position to complete the mold closing.

[0009] The above technical solution is adopted, and the lower mold base is provided with a through hole that is compatible with the connecting rod. The hydraulic cylinder drives the lower mold base to move along the direction of the connecting rod, thereby ensuring the stability of lifting.

[0010] Optionally, the embedded hydraulic locking mechanism includes a vertical square small hydraulic cylinder, a piston rod, an oil pipe, a limit frame, an oil tank, and a pressure sensor. The embedded hydraulic locking mechanism is located in the lower mold base of the mold. After the hydraulic locking mechanism completes the mold closing process, the lower mold base in the mold, together with the embedded hydraulic locking mechanism, reaches the mold closing position. The vertical square small hydraulic cylinder in the embedded hydraulic locking mechanism provides driving force to push the piston rod to move vertically upward, providing hydraulic locking force to the insulator in the mold cavity. During the injection process, the pressure sensor in the embedded hydraulic locking mechanism provides real-time feedback of the hydraulic locking force, and the hydraulic servo valve is adjusted through electrical signal feedback to adjust the locking force of the small hydraulic cylinder in real time, thereby realizing the adaptive locking function of the insulator during the injection molding process.

[0011] By adopting the above technical solution, a small hydraulic cylinder embedded in the lower mold base provides a vertically upward locking force to lock the insulator in the mold cavity. A pressure sensor fixed on the piston of the small hydraulic cylinder provides real-time feedback on the change of locking force during injection. At the same time, the opening of the oil port of the hydraulic servo valve is adjusted through electrical signal feedback, thereby adjusting the locking force of the small hydraulic cylinder in real time, realizing the adaptive locking function of the insulator during the injection molding process.

[0012] Optionally, a square groove is formed at the center of the lower mold base. The size of the square groove depends on the size of the vertical square small hydraulic cylinder. The square groove is used to install and place the vertical square small hydraulic cylinder.

[0013] By adopting the above technical solution, the hydraulic cylinder can be stably fixed in the square groove, avoiding the hydraulic cylinder from shifting when driving the lower mold base to move, which would affect the stability of the lower mold base's lifting and moving.

[0014] Optionally, a circular through hole is machined in the center of the lower mold of the mold. The circular through hole is machined so that the piston rod of the small hydraulic cylinder can pass through the lower mold and contact the insulator in the mold cavity. The size of the circular through hole depends on the size of the piston rod of the small hydraulic cylinder.

[0015] By adopting the above technical solution, the formed insulator can be ejected by a piston rod after molding, thereby making the material handling process more automated.

[0016] Optionally, the piston rod in the embedded hydraulic locking system is connected to the vertical square small hydraulic cylinder by a thread, and the length of the piston rod depends on the height of the lower mold and the heating plate.

[0017] By adopting the above technical solution, the piston rod can be quickly fixed on the hydraulic cylinder, which facilitates the rapid replacement of damaged piston rods.

[0018] Optionally, the pressure sensor in the embedded hydraulic locking system is fixed to the upper surface of the piston rod via a threaded connection on the piston rod, so that the pressure sensor on the piston rod makes normal contact with the insulator to measure the accurate hydraulic locking force.

[0019] By adopting the above technical solution, the accurate hydraulic locking force of the insulator can be measured by the pressure sensor on the piston rod, thereby controlling the hydraulic locking force inside the molding process to ensure the strength of the internal structural molding mechanism of the insulator.

[0020] Optionally, an oil pipe groove is provided on one side of the square groove in the center of the lower mold base to facilitate the connection of the oil tank and the oil circuit of the small hydraulic cylinder embedded in the lower mold base.

[0021] Using the above technical solution, the oil pipe can be stored in the lower mold base, thereby continuously supplying power to the hydraulic cylinder of the lower mold base. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a self-clamping and forming device for hybrid insulators provided by this utility model.

[0023] Figure 2 A schematic diagram of the right-angle injection system of a self-clamping molding equipment for hybrid insulators provided by this utility model.

[0024] Figure 3 A schematic diagram of the piston rod of a self-clamping molding device for hybrid insulators provided by this utility model.

[0025] Figure 4 A partial sectional view of the piston rod of a self-clamping molding device for hybrid insulators provided by this utility model.

[0026] Explanation of reference numerals in the attached drawings: 11. Upper mold base; 12. Runner plate; 13. Upper mold; 14. Lower mold; 15. Heating plate; 16. Lower mold base; 21. Feeding mechanism; 22. Plasticizing mechanism; 23. Injection mechanism; 24. Support frame; 31. Hydraulic cylinder; 32. Hydraulic cylinder base; 33. Green column; 4. Embedded hydraulic locking mechanism; 41. Vertical square small hydraulic cylinder; 42. Piston rod; 43. Oil pipe; 44. Limiting frame; 45. Oil tank; 46. Pressure sensor; Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but does not exclude other elements or objects.

[0028] This utility model embodiment provides a mold and a right-angle injection system connected to the top of the mold, a hydraulic clamping mechanism for driving the mold positioning and movement, and an embedded hydraulic clamping mechanism 4 for adjusting the mold clamping force. The mold includes an upper mold base 11, a runner plate 12, an upper mold 13, a lower mold 14, a heating plate 15, and a lower mold base 14. The right-angle injection system includes a feeding mechanism 21, a plasticizing mechanism 22, an injection mechanism 23, and a support frame 24. The injection unit consists of the feeding mechanism 21, the plasticizing mechanism 22, and the injection mechanism 23. The feeding mechanism 21 feeds the material to the plasticizing mechanism 22 for plasticizing. After plasticizing, the material enters the injection mechanism 23. The injection mechanism 23 injects the plasticized material into the runner plate 12, and then the plasticized material is distributed into four runner pipes before entering the mold cavity to complete the injection process.

[0029] See Figure 1 A material injection unit is provided on one side of the flow channel plate 12. The material injection unit includes an injection mechanism 23 connected to and installed on the right side of the flow channel plate 12. A plasticizing mechanism 22 is connected and installed below the left side of the injection mechanism 23. A support frame 24 is installed below the right side of the injection mechanism 23, and a feeding mechanism 21 is provided between the plasticizing mechanism 22 and the support frame 24. The feeding mechanism 21 is connected to the plasticizing mechanism 22 and fixed on the support frame 24. The feeding mechanism 21 has a feeding port, through which raw materials can be added into the feeding mechanism 21 to complete the feeding work of the feeding mechanism 21. The plasticizing mechanism 22 has a plasticizing mechanism 22. The screw conveys the plasticized material to the injection mechanism 23, completing the feeding of the plasticized material. The plasticizing mechanism 22 is equipped with a micro motor, which drives the screw to rotate for material conveying. The bottom of the runner plate 12 is equipped with four nozzles. Specifically, the feeding mechanism 21 pushes the raw material to the plasticizing mechanism 22. The motor in the plasticizing mechanism 22 drives the internal screw to rotate, conveying the plasticized material to the injection mechanism 23. The injection mechanism then injects the plasticized material into the runner plate 12 and distributes it to the four nozzles. After passing through the upper heating plate 15 and the upper mold base 11, it finally enters the mold cavity to complete the injection molding process.

[0030] In some embodiments, the hydraulic clamping mechanism includes a hydraulic cylinder 31, a Green column 33, and multiple connecting rods distributed on all four sides. The hydraulic clamping mechanism is located directly below the injection working position. The connecting rods are sleeved on the lower mold 14 seat. The hydraulic cylinder 31 drives the lower mold 14 seat in the mold to move vertically upward to the mold closing position to complete the mold closing.

[0031] In fact, a base is installed at the bottom of the lower mold 14, and a hydraulic cylinder 31 is installed at the bottom of the base. Four Green Pillars 33 are set on the upper part of the base, and the four Green Pillars 33 are arranged in a rectangular shape on the base. The upper mold 13 11 is installed at the top of the four Green Pillars 33, and the four Green Pillars 33 pass through the lower mold 14. The hydraulic rod drives the lower mold 14 to move vertically up and down along the four Green Pillars 33, thereby realizing the mold closing and opening process of the upper mold 13 11 and the lower mold 14.

[0032] Optionally, the embedded hydraulic locking mechanism 4 includes a vertical square small hydraulic cylinder 4131, a piston rod 42, an oil pipe 43, a limit frame 44, an oil tank 45, and a pressure sensor 46. The embedded hydraulic locking mechanism 4 is located in the lower mold 14 seat of the mold. After the hydraulic locking mechanism completes the mold closing process, the lower mold 14 seat in the mold, together with the embedded hydraulic locking mechanism 4, reaches the mold closing position. The vertical square small hydraulic cylinder 31 in the embedded hydraulic locking mechanism 4 provides driving force to push the piston rod 42 to move vertically upward, providing hydraulic locking force to the insulator in the mold cavity. During the injection process, the pressure sensor 46 in the embedded hydraulic locking mechanism 4 provides real-time feedback of the hydraulic locking force, and at the same time, the hydraulic servo valve is adjusted through electrical signal feedback to adjust the locking force of the small hydraulic cylinder 31 in real time, thereby realizing the adaptive locking function of the insulator during the injection molding process.

[0033] In fact, the insulator is locked in the mold cavity by the vertically upward locking force provided by the small hydraulic cylinder 31 embedded in the lower mold 14 seat. The pressure sensor 46 fixed on the piston of the small hydraulic cylinder 31 provides real-time feedback on the change of locking force during injection. At the same time, the opening of the oil port of the hydraulic servo valve is adjusted by the feedback of the electrical signal, thereby adjusting the locking force of the small hydraulic cylinder 31 in real time, realizing the adaptive locking function of the insulator during the injection molding process.

[0034] In some embodiments, a square groove is formed at the center of the lower mold 14, the size of which depends on the size of the vertical square small hydraulic cylinder 4131, and the square groove is used to install and place the vertical square small hydraulic cylinder 31.

[0035] In fact, the hydraulic cylinder 31 can be stably fixed in the square groove to prevent the hydraulic cylinder 31 from shifting when driving the lower mold 14 to move, thus affecting the stability of the lower mold 14's lifting and moving.

[0036] In some embodiments, a circular through hole is machined in the center of the lower mold 14 of the mold. The circular through hole is machined so that the piston rod 42 of the small hydraulic cylinder 31 can pass through the lower mold 14 and contact the insulator in the mold cavity. The size of the circular through hole depends on the size of the piston rod 42 of the small hydraulic cylinder 31.

[0037] In fact, the vertical square hydraulic cylinder 31 provides driving force to push the piston rod 42 to move vertically upward, providing hydraulic locking force to the insulator blank placed in the molding die. During the injection molding process, the hydraulic locking pressure is fed back in real time through the pressure sensor 46, and the hydraulic servo valve is adjusted through electrical signal feedback, thereby adjusting the locking force of the vertical square hydraulic cylinder 31 in real time, realizing the adaptive locking function of the insulator blank during the injection molding process.

[0038] In some embodiments, the piston rod 42 in the embedded hydraulic locking system is connected to the vertical square small hydraulic cylinder 4131 by a thread, and the length of the piston rod 42 depends on the height of the lower mold 14 and the heating plate 15.

[0039] In fact, the piston rod 42 can be quickly fixed onto the hydraulic cylinder 31, making it easy to quickly replace the damaged piston rod 42.

[0040] In some embodiments, the pressure sensor 46 in the embedded hydraulic locking system is fixed to the upper surface of the piston rod 42 via a threaded connection on the piston rod 42, so that the pressure sensor 46 on the piston rod 42 makes normal contact with the insulator to measure the accurate hydraulic locking force.

[0041] In fact, the accurate hydraulic locking force of the insulator can be measured by the pressure sensor 46 on the piston rod 42, thereby controlling the hydraulic locking force inside the molding process to ensure the strength of the internal structural molding mechanism of the insulator.

[0042] In some embodiments, an oil pipe 43 groove is provided on one side of the square groove in the center of the lower mold 14 seat, for convenient connection of the oil tank 45 and the oil circuit of the small hydraulic cylinder 31 embedded in the lower mold 14 seat.

[0043] In fact, the hydraulic cylinder 31 of the lower mold 14 can be continuously powered by the oil pipe 43 groove.

[0044] Although the embodiments of this utility model have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations fall within the scope and spirit of this utility model as described in the claims. Moreover, the utility model described herein may have other embodiments and can be implemented or realized in various ways.

Claims

1. A self-clamping and forming device for hybrid insulators, characterized in that, The system includes a mold and a right-angle injection system connected to the top of the mold, a hydraulic clamping mechanism for driving the mold positioning and movement, and an embedded hydraulic clamping mechanism for adjusting the mold clamping force. The mold includes an upper mold base, a runner plate, an upper mold, a lower mold, a heating plate, and a lower mold base. The right-angle injection system includes an injection unit and a support frame. The injection unit consists of a feeding mechanism, a plasticizing mechanism, and an injection mechanism. The feeding mechanism feeds the material to the plasticizing mechanism for plasticizing. After plasticizing, the material enters the injection mechanism. The injection mechanism injects the plasticized material into the runner plate, and the plasticized material is distributed into four runner tubes before entering the mold cavity to complete the injection process.

2. The self-clamping forming equipment for hybrid insulators according to claim 1, characterized in that, The hydraulic clamping mechanism includes a hydraulic cylinder, a Green column, and multiple connecting rods distributed on all four sides. The hydraulic clamping mechanism is located directly below the injection working position. The connecting rods are sleeved on the lower mold base. The hydraulic cylinder drives the lower mold base in the mold, thereby causing the lower mold fixedly installed above the lower mold base to move vertically upward to the mold closing position to complete the mold closing.

3. The self-clamping and forming equipment for hybrid insulators according to claim 2, characterized in that, The embedded hydraulic locking mechanism includes a vertical square small hydraulic cylinder, a piston rod, an oil pipe, a limit frame, an oil tank, and a pressure sensor. The embedded hydraulic locking mechanism is located in the lower mold base of the mold. After the hydraulic locking mechanism completes the mold closing process, the lower mold base in the mold, together with the embedded hydraulic locking mechanism, reaches the mold closing position. The vertical square small hydraulic cylinder in the embedded hydraulic locking mechanism provides driving force to push the piston rod to move vertically upward, providing hydraulic locking force to the insulator in the mold cavity. During the injection process, the pressure sensor in the embedded hydraulic locking mechanism provides real-time feedback of the hydraulic locking force, and the hydraulic servo valve is adjusted through electrical signal feedback to adjust the locking force of the small hydraulic cylinder in real time, thereby realizing the adaptive locking function of the insulator during the injection molding process.

4. The self-clamping and forming equipment for hybrid insulators according to claim 3, characterized in that, A square groove is provided at the center of the lower mold base. The size of the square groove depends on the size of the vertical square small hydraulic cylinder. The square groove is used to install and place the vertical square small hydraulic cylinder.

5. The self-clamping forming equipment for hybrid insulators according to claim 4, characterized in that, A circular through hole is machined in the center of the lower mold of the mold. The circular through hole is machined so that the piston rod of the small hydraulic cylinder can pass through the lower mold and contact the insulator in the mold cavity. The size of the circular through hole depends on the size of the piston rod of the small hydraulic cylinder.

6. The self-clamping and forming equipment for hybrid insulators according to claim 3, characterized in that, The vertical square small hydraulic cylinder in the embedded hydraulic locking system is installed and fixed by threaded engagement through the threaded hole at the bottom of the square groove in the center of the lower mold base.

7. The self-clamping forming equipment for hybrid insulators according to claim 6, characterized in that, The piston rod in the embedded hydraulic locking system is connected to the vertical square small hydraulic cylinder by a thread, and the length of the piston rod depends on the height of the lower mold and the heating plate.

8. The self-clamping and forming equipment for hybrid insulators according to claim 7, characterized in that, The pressure sensor in the embedded hydraulic locking system is fixed to the upper surface of the piston rod through a threaded connection, so that the pressure sensor on the piston rod can make normal contact with the insulator to measure the accurate hydraulic locking force.

9. The self-clamping forming equipment for hybrid insulators according to claim 8, characterized in that, An oil pipe groove is provided on one side of the square groove in the center of the lower mold base, which is used to facilitate the connection of the oil tank and the oil circuit of the small hydraulic cylinder embedded in the lower mold base.

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