Insulator forming device and forming method thereof

Abstract

The invention relates to the technical field of insulator manufacturing, in particular to an insulator forming device and a forming method thereof.The insulator forming device comprises an upper die base and a lower die base which are spliced with each other, a die cavity is formed between the upper die base and the lower die base, a runner plate used for injecting plasticized materials into the die cavity is arranged on the upper die base, and the runner plate is provided with a runner cavity used for injecting the plasticized materials into the lower die base; an inner die unit is arranged on the left side of the upper portion of the lower die base in a sliding mode, an insulator mold blank is fixed in the inner die unit in a preset mode, the inner die unit is wrapped in a die cavity formed by the upper die base and the lower die base, and a pressure control assembly used for controlling the pressure in the die cavity is arranged on the lower die base. According to the invention, the mold locking pressure can be adaptively adjusted according to the pressure change in the mold cavity, the structure is reasonable and efficient, the product quality is greatly improved, the production cost is effectively reduced, and the resource utilization efficiency is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of insulator manufacturing, and in particular to an insulator molding device and a molding method thereof. Background Art

[0002] With the rapid development of the power industry, the market demand for insulators, a key component in the power system, continues to grow. The performance of insulators is directly related to the safety and stability of the power grid. Therefore, improving their product quality and reducing manufacturing costs have become technical challenges that the industry needs to solve urgently.

[0003] The manufacture of insulators usually relies on rubber injection molding machines and professional molds. In modern rubber processing, injection molding technology is widely used in many fields due to its high efficiency, low cost and strong adaptability. However, most of the current rubber injection molding machines use a single clamping cylinder to complete the clamping action of the mold. This design makes it difficult to ensure the appropriate clamping pressure, which can easily lead to problems such as air entrapment and defects in the finished insulators. In addition, the existing equipment cannot adaptively adjust the clamping pressure according to the pressure changes in the mold cavity, resulting in low production efficiency. These problems not only affect product quality, but also increase manufacturing costs.

[0004] To this end, developing an insulator molding device with adaptive adjustment of clamping pressure, reasonable structure and high efficiency is of great significance to meet the market demand for high-quality and low-cost insulator production. Such innovation can not only improve product quality, but also effectively reduce production costs and optimize resource utilization efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide an insulator molding device and a molding method thereof, which can adaptively adjust the clamping pressure according to the pressure changes in the mold cavity, have a reasonable and efficient structure, greatly improve product quality, effectively reduce production costs, and optimize resource utilization efficiency.

[0006] The present invention is achieved through the following technical solutions:

[0007] On one hand, the present invention provides an insulator molding device, which includes an upper mold base and a lower mold base that are assembled with each other, a mold cavity is arranged between the upper mold base and the lower mold base, a flow channel plate is provided on the upper mold base for injecting plasticized material into the mold cavity, an inner mold unit is slidably arranged on the upper left side of the lower mold base, an insulator blank is pre-set and fixed in the inner mold unit, and the inner mold unit is covered in the mold cavity formed by the upper mold base and the lower mold base, and a pressure control component for controlling the internal pressure of the mold cavity is arranged on the lower mold base.

[0008] Furthermore, the inner mold unit includes two linear guide rails symmetrically installed on the lower mold base, a lower heating plate is slidably installed on the inner side of the two linear guide rails, a forming mold is installed on the upper surface of the lower heating plate, an installation cavity is opened inside the forming mold, and the installation cavity is used to pre-set and fix the insulator blank, a group of lateral sliding mold cores are opened and closed and slidably arranged on one side of the upper part of the forming mold close to the two linear guide rails, and a runner plate, an upper heating plate and an upper mold plate are screwed and assembled in sequence from top to bottom below the upper mold base.

[0009] Furthermore, a material injection unit is provided on one side of the flow channel plate, and the material injection unit includes an injection mechanism installed in communication with the right side of the flow channel plate, a plasticizing mechanism is installed below the left side of the injection mechanism, a support frame is installed below the right side of the injection mechanism, and a feeding mechanism is provided between the plasticizing mechanism and the support frame, and the feeding mechanism is connected to the plasticizing mechanism and fixed on the support frame.

[0010] Furthermore, a base is installed at the bottom of the lower mold base, a hydraulic cylinder is installed at the bottom of the base, four Green columns are arranged on the upper part of the base, and the four Green columns are distributed in a rectangular shape on the base.

[0011] Furthermore, the upper die base is installed at the top of the four Green columns, and the four Green columns pass through the lower die base, and the hydraulic rod drives the lower die base to perform vertical ascending and descending movements along the four Green columns.

[0012] Furthermore, the pressure control assembly includes a vertical square hydraulic cylinder, a piston push rod, a pressure sensor and a control unit; the vertical square hydraulic cylinder is installed at the center of the lower mold base, the piston push rod is threadedly assembled and connected to the vertical square hydraulic cylinder, and the pressure sensor is threadedly fixed to the upper surface of the piston push rod. The vertical square hydraulic cylinder, the piston push rod and the pressure sensor are all electrically connected to the control unit, and the material injection unit is electrically connected to the control unit.

[0013] Furthermore, the control unit consists of two parts: a power control part and a human-machine interaction part. The power control part is located outside the support frame, the human-machine interaction part is fixed to the upper mold base, and a rotating bracket is installed between the human-machine interaction part and the upper mold base.

[0014] Furthermore, an opening and closing assembly is provided on the outer side of the left portion of the linear guide rail, and the opening and closing assembly includes a clamp fixing platform, a mold opening cylinder, an opening and closing clamp and a clamp mating block located on the outer side of the linear guide rail, the mold opening cylinder and the opening and closing clamp are assembled on the clamp fixing platform, the mold opening cylinder is located on both sides of the opening and closing clamp, and the clamp mating block is installed on the lateral sliding mold core.

[0015] Furthermore, a driving unit is provided at the bottom of the vertical square hydraulic cylinder, and the control unit is electrically connected to the driving unit. The driving unit includes a base plate and an oil tank arranged on the base plate. A motor, a hydraulic pump and a hydraulic servo valve are installed on the upper side of the oil tank. An oil pipe is provided between the hydraulic servo valve and the vertical square hydraulic cylinder to form a complete hydraulic control circuit.

[0016] Another aspect of the present invention provides a molding method of the insulator molding device, the method comprising the following steps:

[0017] S1. The molding die is initially located at a working position on the left side of the lower die base, and the linear guide rail moves the molding die and the insulator blank as a whole to the right to an initial injection working position.

[0018] S2. After reaching the initial injection working position, the hydraulic cylinder provides an upward driving force and drives the lower mold base and the molding mold to move upward as a whole, so that the lower mold base and the upper mold base are combined and the molding mold is covered inside the mold cavity to complete the mold closing work.

[0019] S3. After the mold is closed, the material injection unit starts to work, and the plasticized material is injected into the mold cavity. The control unit monitors and adjusts the locking pressure of the insulator blank during the injection of the plasticized material in real time to ensure that the locking force of the insulator blank remains within a normal range during the injection process until the injection of the plasticized material is completed.

[0020] S4. After the injection of the plasticized material is completed, the locking state of the insulator blank inside the mold cavity is released, and at the same time, the hydraulic cylinder stops providing an upward driving force and instead provides a downward mold opening force, returning the lower mold base and the molding mold in the mold closing position to the initial injection working position.

[0021] S5. After the lower mold base returns to the initial injection working position, the linear guide rail pushes the molding mold and the injection-molded insulator blank to the initial working position, and cooperates with the opening and closing assembly to perform mold lowering, material removal, cleaning and material discharge processing.

[0022] S6. After the lower die is tightened, steps S1 to S5 are executed cyclically.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention can provide a vertical upward locking force through the vertical square hydraulic cylinder in the lower mold base to firmly lock the insulator in the mold cavity. During the mold locking process, the pressure sensor installed on the piston of the vertical square hydraulic cylinder can monitor the change of the locking force during injection in real time, and feed back the data to the control unit. The control unit adjusts the oil port opening of the hydraulic servo valve through an electrical signal, thereby realizing real-time adjustment of the locking pressure of the vertical square hydraulic cylinder, thereby achieving an adaptive locking function of the insulator during the injection molding process.

[0025] 2. The present invention adopts a double-cylinder locking structure and an intelligent locking pressure adjustment mechanism, which not only ensures the clamping accuracy and stability of the pre-set insulator blank in the molding mold during the injection molding process, but also ensures the close connection between the internal components of the insulator by optimizing the locking and injection process. This significantly improves the overall structural strength and ensures the stable operation of the insulator blank under harsh environmental conditions. This technology not only effectively improves the product quality of the insulator, but also significantly reduces the mold design and manufacturing costs, providing a more efficient and economical solution for the production of power insulators.

[0026] 3. The insulator forming device in the present invention has a single-station structure that is arranged in a straight line with the outer contour as a whole, which makes the placement and replacement process of the insulator blank easier, thereby further improving the convenience of mold operation and overall work efficiency. The device has high adaptability and reliability, and is widely used in the automated process of power insulator production, ensuring a high yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the initial working state of the inner membrane unit in the present invention;

[0029] Figure 3 It is a schematic diagram of the injection mold clamping working state of the inner mold unit in the present invention;

[0030] Figure 4 It is a structural schematic diagram of the upper mold base, the flow channel plate and the upper heating plate in the present invention;

[0031] Figure 5 A cross-sectional view of a portion of the structure in the inner mold unit of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the opening and closing component in the present invention;

[0033] Figure 7 It is a partial structural cross-sectional view of the inner mold unit of the present invention;

[0034] Figure 8It is a schematic diagram of the structure of the material injection unit in the present invention.

[0035] Illustration Description:

[0036] 1. Upper die base; 2. Lower die base; 3. Runner plate; 4. Inner die unit; 401. Linear guide; 402. Lower heating plate; 403. Forming die; 4031. Mounting cavity; 404. Lateral sliding die core; 405. Upper heating plate; 406. Upper die plate; 5. Material injection unit; 501. Injection mechanism; 502. Plasticizing mechanism; 503. Support frame; 504. Feeding mechanism; 6. Pressure control assembly; 601. Vertical square hydraulic cylinder; 602. Piston push rod; 603 , pressure sensor; 604, control unit; 6041, power control unit; 6042, human-machine interaction unit; 6043, rotating bracket; 7, opening and closing assembly; 701, clamping jaw fixing platform; 702, mold opening cylinder; 703, opening and closing clamping jaw; 704, clamping jaw matching block; 8, driving unit; 801, bottom plate; 802, oil tank; 803, motor; 804, hydraulic pump; 805, hydraulic servo valve; 806, oil pipe; 9, base; 10, hydraulic cylinder; 11, Green column. DETAILED DESCRIPTION

[0037] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0038] See also Figures 1 to 8 An insulator molding device is provided in an embodiment of the present invention, comprising an upper mold base 1 and a lower mold base 2 which are assembled with each other, a mold cavity is arranged between the upper mold base 1 and the lower mold base 2, a flow channel plate 3 for injecting plasticized material into the mold cavity is arranged on the upper mold base 1, an inner mold unit 4 is slidingly arranged on the upper left side of the lower mold base 2, an insulator blank is pre-set and fixed in the inner mold unit 4, and the inner mold unit 4 is covered in the mold cavity formed by the upper mold base 1 and the lower mold base 2, and a pressure control component 6 for controlling the internal pressure of the mold cavity is arranged on the lower mold base 2.

[0039] In some embodiments, see Figure 1 and Figure 2 A base 9 is installed at the bottom of the lower die base 2, a hydraulic cylinder 10 is installed at the bottom of the base 9, four Green columns 11 are arranged on the upper part of the base 9, and the four Green columns 11 are arranged on the base 9 in a rectangular distribution.

[0040] In some embodiments, participating Figure 3 and Figure 4The upper die base 1 is installed at the top of the four Green columns 11, and the four Green columns 11 pass through the lower die base 2. The hydraulic rod drives the lower die base 2 to rise and fall along the four Green columns 11 in the vertical direction, thereby realizing the mold closing and opening process of the upper die base 1 and the lower die base 2.

[0041] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The inner mold unit 4 includes two linear guide rails 401 symmetrically installed on the lower mold base 2, a lower heating plate 402 is slidably installed on the inner side of the two linear guide rails 401, a forming mold 403 is installed on the upper surface of the lower heating plate 402, and an installation cavity 4031 is opened inside the forming mold 403. Specifically, the insulator blank is pre-set and fixed on the installation cavity 4031, and a group of lateral sliding mold cores 404 are opened and closed and slidably arranged on one side of the upper part of the forming mold 403 close to the two linear guide rails 401. The flow channel plate 3, the upper heating plate 405 and the upper mold plate 406 are screwed and assembled from top to bottom below the upper mold base 1.

[0042] In some embodiments, see Figure 4 and Figure 5 An assembly block is provided on the upper mold plate 406, and an assembly cavity matching the assembly block is opened on the surface of the molding mold 403, so as to ensure the stability and sealing of the upper mold base 1 and the lower mold base 2 when the mold is closed.

[0043] In some embodiments, see Figure 4 and Figure 5 The upper heating plate 405 and the lower heating plate 402 of the inner mold unit 4 are provided with circular hole channels and embedded with heating tubes. The upper heating plate 405 and the upper mold base 1 are provided with T-slots and connected by screws. The lower heating plate 402 and the lower mold base 2 are provided with T-slots and connected by screws.

[0044] In some embodiments, see Figure 2 , Figure 6 and Figure 7 An opening and closing assembly 7 is arranged on the outer side of the left part of the linear guide 401, and the opening and closing assembly 7 includes a clamp fixing platform 701, a mold opening cylinder 702, an opening and closing clamp 703 and a clamp matching block 704 located on the outer side of the linear guide 401, the mold opening cylinder 702 and the opening and closing clamp 703 are assembled on the clamp fixing platform 701, the mold opening cylinder 702 is located on both sides of the opening and closing clamp 703, and the clamp matching block 704 is installed on the lateral sliding mold core 404.

[0045] After the injection molding is completed, the lower mold base 2 returns to the initial working position, and under the horizontal driving force provided by the linear guide rail 401, the lower heating plate 402 is moved to the matching position of the opening and closing component 7, and the mold opening cylinders 702 on the left and right sides of the opening and closing component 7 respectively apply an outward pulling force to the opening and closing clamps 703 on both sides, thereby opening the lateral sliding mold core 404 and carrying out the mold removal, mold cleaning and material loading processes.

[0046] In some embodiments, see Figure 1 and Figure 8 A material injection unit 5 is provided on one side of the flow channel plate 3, and the material injection unit 5 includes an injection mechanism 501 connected and installed with the right side of the flow channel plate 3, and a plasticizing mechanism 502 is connected and installed below the left side of the injection mechanism 501. A support frame 503 is installed below the right side of the injection mechanism 501, and a feeding mechanism 504 is provided between the plasticizing mechanism 502 and the support frame 503. The feeding mechanism 504 is connected with the plasticizing mechanism 502 and fixed on the support frame 503.

[0047] In some embodiments, see Figure 7 A feeding port is provided on the feeding mechanism 504 , through which the raw material can be added into the feeding mechanism 504 , thereby completing the feeding work of the feeding mechanism 504 .

[0048] In some embodiments, a screw is disposed inside the plasticizing mechanism 502 , and the plasticized material is transported to the injection mechanism 501 through the screw, thereby completing the feeding of the plasticized material.

[0049] In some embodiments, a micro motor 803 is disposed inside the plasticizing mechanism 502 to drive the screw to rotate for material transportation.

[0050] In some embodiments, see Figure 4 and Figure 8 , four nozzles are arranged at the bottom of the flow channel plate 3; specifically, the feeding mechanism 504 pushes the original material to the plasticizing mechanism 502, and the motor 803 in the plasticizing mechanism 502 drives the internal screw to rotate, and conveys the plasticized material to the injection mechanism 501, and then the injection mechanism 501 injects the plasticized material into the flow channel plate 3, and divides it to the four nozzles, and then passes through the upper heating plate 405 and the upper mold base 1, and finally enters the mold cavity to complete the injection molding process.

[0051] In some embodiments, the injection mechanism 501 is electrically connected to the control unit 604 , and the control unit 604 can adjust process parameters such as injection volume, injection pressure, and injection rate in real time according to the signal fed back by the pressure sensor 603 .

[0052] In some embodiments, see Figure 2 and Figure 5The pressure control assembly 6 includes a vertical square hydraulic cylinder 601, a piston push rod 602, a pressure sensor 603 and a control unit 604; specifically, the vertical square hydraulic cylinder 601 is installed at the center of the lower mold base 2, the piston push rod 602 is threadedly assembled and connected to the vertical square hydraulic cylinder 601, and the pressure sensor 603 is threadedly fixed to the upper surface of the piston push rod 602. The vertical square hydraulic cylinder 601, the piston push rod 602 and the pressure sensor 603 are all electrically connected to the control unit 604, and the material injection unit 5 is electrically connected to the control unit 604.

[0053] After the upper mold base 1 and the lower mold base 2 complete the mold closing process, the vertical square hydraulic rod provides a driving force to push the piston push rod 602 to move vertically upward, providing a hydraulic locking force to the insulator blank placed in the molding mold 403. During the injection molding process, the hydraulic locking pressure is fed back in real time through the pressure sensor 603, and the hydraulic servo valve 805 is adjusted through the electrical signal feedback, thereby adjusting the locking force of the vertical square hydraulic rod in real time, thereby realizing the adaptive locking function of the insulator blank during the injection molding process.

[0054] In some embodiments, the piston push rod 602 is connected to the vertical square hydraulic cylinder 601 by means of threads, and the length of the piston push rod 602 is adjusted accordingly according to the height dimensions of the lower mold plate and the lower heating plate 402 .

[0055] In some embodiments, the pressure sensor 603 is threadedly fixed to the upper surface of the piston push rod 602, so that the pressure sensor 603 is in normal contact with the insulator blank to measure accurate hydraulic locking force.

[0056] In some embodiments, see Figure 5 , Figure 6 and Figure 7 A square groove, a circular through hole and another circular through hole are respectively opened in the center of the lower mold base 2 in the pressure control assembly 6 and the center of the lower heating plate 402. The size of the square groove is designed according to the size of the vertical square hydraulic cylinder 601 to facilitate the installation and placement of the hydraulic cylinder 10.

[0057] In some embodiments, specifically, the size of the circular through hole depends on the specific size of the piston push rod 602 to ensure that the piston push rod 602 can pass through the lower mold base 2 and the lower heating plate 402 and then contact the insulator blank in the mold cavity.

[0058] In some embodiments, see Figure 5 The vertical square hydraulic cylinder 601 is threadedly connected through the threaded hole at the bottom of the central square groove of the lower die base 2 to achieve stable installation and fixation.

[0059] In some embodiments, see Figure 1The control unit 604 consists of two parts: a power control unit 6041 and a human-machine interaction unit 6042 . The power control unit 6041 is located outside the support frame 503 , and the human-machine interaction unit 6042 is fixed to the upper mold base 1 .

[0060] Specifically, the control unit 604 receives the real-time feedback signal from the pressure sensor 603, performs signal recognition, signal decision-making and other steps, thereby adaptively adjusting the opening of the hydraulic servo valve 805 to achieve the function of adaptive clamping. The control unit 604 uses an intelligent algorithm to intelligently control the overall action of the insulator forming device.

[0061] In some embodiments, see Figure 1 A rotating bracket 6043 is installed between the human-machine interaction part 6042 and the upper die base 1. The operating plane can be adjusted by rotating the bracket 6043, and the power control part 6041 and the human-machine interaction system part can realize intelligent control of the whole machine.

[0062] In some embodiments, specifically, the power control unit 6041 is a power and control system and the human-computer interaction unit 6042 is a human-computer interaction system.

[0063] In some embodiments, see Figure 1 A driving unit 8 is provided at the bottom of the vertical square hydraulic cylinder 601, and the control unit 604 is electrically connected to the driving unit 8. The driving unit 8 includes a bottom plate 801 and an oil tank 802 arranged on the bottom plate 801. A motor 803, a hydraulic pump 804 and a hydraulic servo valve 805 are installed on the upper side of the oil tank 802. An oil pipe 806 is provided between the hydraulic servo valve 805 and the vertical square hydraulic cylinder 601 to form a complete hydraulic control circuit. Specifically, the pressure signal of the mold cavity is converted into an electrical signal through the pressure sensor 603 and fed back to the motor 803, and the speed of the motor 803 is changed in real time to control the size of the hydraulic pressure, thereby realizing the adaptive locking function of the insulator blank.

[0064] In some embodiments, see Figure 1 The motor 803 is fixedly installed above the oil tank 802 and connected to the hydraulic pump 804 in the drive unit 8 to provide hydraulic driving force for the vertical square hydraulic cylinder 601.

[0065] In some embodiments, a groove for an oil pipe 806 is opened on one side of the square groove in the center of the lower die base 2 to facilitate the oil circuit connecting the oil tank 802 and the vertical square hydraulic cylinder 601 .

[0066] In some embodiments, a limit frame is installed on the base plate 801 near the bottom of the vertical square hydraulic cylinder 601. Specifically, the limit frame is fixedly installed on the base plate 801, and the oil pipe 806 is connected to the oil tank 802 through the limit hole on the limit frame, and extends to the vertical square hydraulic cylinder 601 embedded in the lower mold base 2. The oil pipe 806 connected to the vertical square hydraulic cylinder 601 can be flexibly raised and lowered as the lower mold base 2 moves up and down.

[0067] The following describes a molding method for the insulator molding device, which comprises the following steps:

[0068] S1. The molding die 403 is initially located at the working position on the left side of the lower die base 2. The linear guide rail 401 moves the molding die 403 and the insulator preform as a whole to the right to the initial injection working position.

[0069] When executing step S1: when the molding mold 403 is located at the initial working position on the left side of the lower mold base 2, a pair of lateral sliding mold cores 404 in the molding mold 403 are pulled to the left and right sides respectively through the opening and closing component 7, so that the installation cavity 4031 inside the molding mold 403 can be exposed. At this time, the molding mold 403 is in the mold opening state, and the insulator blank is placed vertically from top to bottom on the installation cavity 4031. After the insulator blank is placed, the opening and closing component 7 closes the pair of lateral sliding mold cores 404 in the molding mold 403 inwardly, and wraps the placed insulator blank in the mold installation cavity 4031. At this time, the molding mold 403 is in the mold closing state, and moves to the right to the initial injection working position through the linear guide 401.

[0070] S2. After reaching the initial injection working position, the hydraulic cylinder 10 provides an upward driving force and drives the lower mold base 2 and the molding mold 403 to move upward as a whole, so that the lower mold base 2 and the upper mold base 1 are assembled and the molding mold 403 is covered inside the mold cavity to complete the mold closing work.

[0071] When executing step S2: the hydraulic cylinder 10 provides an upward driving force and drives the lower mold base 2 and the molding mold 403 to move as a whole along the Green column 11. The lower mold base 2 and the upper mold base 1 are assembled and the required molding mold 403 is covered inside the mold cavity. The vertical square hydraulic cylinder 10601 on the lower mold base 2 provides a vertical upward driving force, pushing the piston push rod 602 to contact the insulator in the mold cavity, and providing a certain locking force to keep the insulator blank locked during the subsequent injection process.

[0072] S3. After the mold is closed, the material injection unit 5 starts to work, and the plasticized material is injected into the mold cavity. The control unit 604 monitors and adjusts the locking pressure of the insulator blank during the injection of the plasticized material in real time to ensure that the locking force of the insulator blank remains within a normal range during the injection process until the injection of the plasticized material is completed.

[0073] When executing step S3: the initial material is injected into the feeding mechanism 504 from the feed port, and the initial material is sequentially conveyed to the plasticizing mechanism 502 and the injection mechanism 501 to complete the plasticizing treatment. The plasticized material is injected into the runner plate 3 through the injection mechanism 501, and then injected into the mold cavity. The locking pressure in the mold cavity begins to change as the material injection process begins. According to the pressure signal fed back by the pressure sensor 603, the control unit 604 adjusts the oil port opening of the hydraulic servo valve 805 through an electrical signal, thereby adjusting the locking pressure applied by the vertical square hydraulic cylinder 10601 to the insulator blank in real time, to ensure that the locking pressure of the insulator blank during the injection process remains within a normal range.

[0074] S4. After the injection of the plasticized material is completed, the locking state of the insulator blank inside the mold cavity is released, and at the same time, the hydraulic cylinder 10 stops providing an upward driving force and instead provides a downward mold opening force, returning the lower mold base 2 and the molding mold 403 in the mold closing position to the initial injection working position.

[0075] When executing step S4: after the injection of the plasticized material is completed, the vertical square hydraulic cylinder 10601 installed on the lower mold base 2 stops providing locking pressure, and the piston push rod 602 returns to the initial position. At the same time, the hydraulic cylinder 10 stops providing upward driving force and instead provides downward mold opening force, returning the lower mold base 2 and the molding mold 403 in the mold closing position to the initial injection working position, waiting for the lower mold processing.

[0076] S5. After the lower die base 2 returns to the initial injection working position, the linear guide rail 401 pushes the molding die 403 and the injection molded insulator blank to the initial working position, and cooperates with the opening and closing component 7 to perform the lowering of the die, material removal, cleaning and material discharge processing.

[0077] When executing step S5: the lower mold base 2 returns to the initial injection working position, and the linear guide 401 provides a horizontal driving force to the left, and moves the lower molding mold 403 and the injection molded insulator blank to the left to the matching position of the opening and closing component 7. At the same time, the mold opening cylinders 702 on the left and right sides of the opening and closing component 7 respectively give a pair of forces to the opening and closing jaws 703 on both sides to pull outward, completing the opening process of the lower mold. After the lateral sliding mold core 404 on the molding mold 403 is opened, the material picking, cleaning and discharge processes begin. After the discharge is completed, the mold opening cylinders 702 on the left and right sides of the opening and closing component 7 return to the initial position, and give a pair of forces to the opening and closing jaws 703 on both sides to tighten inward, and the tightening process of the lower mold is completed.

[0078] S6. After the lower mold is tightened, steps S1 to S5 are executed cyclically, so that the insulator blank can be continuously injection molded.

[0079] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. An insulator molding device, characterized in that: The invention comprises an upper die base (1) and a lower die base (2) which are assembled with each other, a die cavity is arranged between the upper die base (1) and the lower die base (2), a flow channel plate (3) is arranged on the upper die base (1) for injecting plasticized material into the die cavity, an inner die unit (4) is slidably arranged on the upper left side of the lower die base (2), an insulator blank is pre-set and fixed in the inner die unit (4), and the inner die unit (4) is covered in the die cavity formed by the upper die base (1) and the lower die base (2), and a pressure control component (6) is arranged on the lower die base (2) for controlling the pressure inside the die cavity.

2. An insulator molding device according to claim 1, characterized in that: The inner mold unit (4) includes two linear guide rails (401) symmetrically installed on the lower mold base (2), a lower heating plate (402) is slidably installed on the inner side of the two linear guide rails (401), a forming mold (403) is installed on the upper surface of the lower heating plate (402), an installation cavity (4031) is provided inside the forming mold (403), a group of lateral sliding mold cores (404) are opened and closed and slidably arranged on one side of the upper part of the forming mold (403) close to the two linear guide rails (401), and a flow channel plate (3), an upper heating plate (405) and an upper mold plate (406) are screwed and assembled from top to bottom below the upper mold base (1).

3. An insulator molding device according to claim 2, characterized in that: A material injection unit (5) is provided on one side of the flow channel plate (3), and the material injection unit (5) comprises an injection mechanism (501) which is connected and installed with the right side of the flow channel plate (3), and a plasticizing mechanism (502) is connected and installed below the left side of the injection mechanism (501). A support frame (503) is installed below the right side of the injection mechanism (501), and a feeding mechanism (504) is provided between the plasticizing mechanism (502) and the support frame (503), and the feeding mechanism (504) is connected with the plasticizing mechanism (502) and fixed on the support frame (503).

4. An insulator molding device according to claim 3, characterized in that: A base (9) is installed at the bottom of the lower die base (2), a hydraulic cylinder (10) is installed at the bottom of the base (9), four Green columns (11) are arranged on the top of the base (9), and the four Green columns (11) are arranged on the base (9) in a rectangular distribution.

5. An insulator molding device according to claim 4, characterized in that: The upper die base (1) is installed at the top of the four Green columns (11), and the four Green columns (11) pass through the lower die base (2). The hydraulic rod drives the lower die base (2) to perform vertical ascending and descending movements along the four Green columns (11).

6. An insulator molding device according to claim 5, characterized in that: The pressure control component (6) includes a vertical square hydraulic cylinder (601), a piston push rod (602), a pressure sensor (603) and a control unit (604); the vertical square hydraulic cylinder (601) is installed at the center of the lower mold base (2), the piston push rod (602) is threadedly assembled and connected to the vertical square hydraulic cylinder (601), the pressure sensor (603) is threadedly connected and fixed to the upper surface of the piston push rod (602), the vertical square hydraulic cylinder (601), the piston push rod (602) and the pressure sensor (603) are all electrically connected to the control unit (604), and the material injection unit (5) is electrically connected to the control unit (604).

7. An insulator molding device according to claim 6, characterized in that: The control unit (604) is composed of two parts: a power control unit (6041) and a human-machine interaction unit (6042). The power control unit (6041) is located outside the support frame (503), and the human-machine interaction unit (6042) is fixed to the upper mold base (1). A rotating bracket (6043) is installed between the human-machine interaction unit (6042) and the upper mold base (1).

8. An insulator molding device according to claim 7, characterized in that: An opening and closing assembly (7) is arranged on the outer side of the left part of the linear guide rail (401), and the opening and closing assembly (7) comprises a clamp fixing platform (701) located on the outer side of the linear guide rail (401), a mold opening cylinder (702), an opening and closing clamp (703) and a clamp matching block (704), wherein the mold opening cylinder (702) and the opening and closing clamp (703) are assembled on the clamp fixing platform (701), the mold opening cylinder (702) is located on both sides of the opening and closing clamp (703), and the clamp matching block (704) is installed on the lateral sliding mold core (404).

9. An insulator molding device according to claim 8, characterized in that: A driving unit (8) is arranged at the bottom of the vertical square hydraulic cylinder (601), and the control unit (604) is electrically connected to the driving unit (8). The driving unit (8) comprises a bottom plate (801) and an oil tank (802) arranged on the bottom plate (801). A motor (803), a hydraulic pump (804) and a hydraulic servo valve (805) are installed on the upper side of the oil tank (802). An oil pipe (806) is arranged between the hydraulic servo valve (805) and the vertical square hydraulic cylinder (601), thereby forming a complete hydraulic control circuit.

10. The molding method of the insulator molding device according to any one of claims 1 to 9, characterized in that: The steps include: S1. The molding die (403) is initially located at a working position on the left side of the lower die base (2), and the linear guide rail (401) moves the molding die (403) and the insulator blank as a whole to the right to an initial injection working position. S2. After reaching the initial injection working position, the hydraulic cylinder (10) provides an upward driving force and drives the lower mold base (2) and the molding mold (403) to move upward as a whole, so that the lower mold base (2) and the upper mold base (1) are assembled and the molding mold (403) is covered inside the mold cavity, completing the mold closing work. S3. After the mold is closed, the material injection unit (5) starts to work, and the plasticized material is injected into the mold cavity. The control unit (604) monitors and adjusts the locking pressure of the insulator blank during the injection of the plasticized material in real time to ensure that the locking force of the insulator blank remains within a normal range during the injection process until the injection of the plasticized material is completed. S4. After the injection of the plasticized material is completed, the locking state of the insulator blank inside the mold cavity is released, and at the same time, the hydraulic cylinder (10) stops providing an upward driving force and instead provides a downward mold opening force, so that the lower mold base (2) and the molding mold (403) in the mold closing position are returned to the initial injection working position. S5. After the lower mold base (2) returns to the initial injection working position, the linear guide rail (401) pushes the molding mold (403) and the injection-molded insulator blank to the initial working position, and cooperates with the opening and closing component (7) to perform mold lowering, material removal, cleaning and material discharge processing. S6. After the lower die is tightened, steps S1 to S5 are executed cyclically.

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