An automatic production device for power fitting insulator

Abstract

The application belongs to the technical field of insulator production equipment, and discloses an automatic production equipment for power accessory insulators, which comprises a processing table, a processing die, and a material lifting device. The material lifting device comprises a supporting ring, a material spraying assembly, and a lifting assembly. The supporting ring is installed in the mounting hole. The material spraying assembly can uniformly spray release powder to the contact position of the blank and the die and the supporting ring through the air injection hole of the supporting ring, so that an isolation layer is formed on the contact surface, the adhesion between the blank and the contact surface is greatly reduced, the demolding resistance is reduced, and the vibration generated by the vibration assembly during demolding is combined to avoid damage and deformation of the blank during demolding, thereby significantly improving the qualified rate and quality stability of the insulator finished product.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of insulator production equipment, and particularly relates to an automatic production equipment for power accessory insulators. BACKGROUND

[0002] Insulators are indispensable insulating equipment in the fields of power generation, power transformation, power transmission, power distribution and power utilization of the power system, and mainly play the roles of mechanical connection and electrical insulation. Existing insulators are divided into porcelain insulators, glass insulators, composite insulators and hybrid insulators according to different materials.

[0003] The existing porcelain insulators need to go through the processes of raw material preparation, forming, drying, repairing, glazing, firing, machining, assembling and detection when being manufactured, and the raw material is generally poured into a mold for casting forming during the forming operation. However, since the raw material has certain viscosity, the blank is prone to be stuck with the mold during the demolding operation of the extrusion-formed insulator blank, thereby increasing the demolding difficulty of the blank and possibly causing damage to the blank, affecting the finished product quality of the insulator.

[0004] Therefore, it is necessary to invent an automatic production equipment for power accessory insulators to solve the above problems. SUMMARY

[0005] In view of the above problems, the application provides an automatic production equipment for power accessory insulators to solve the problems proposed in the background art.

[0006] To achieve the above purpose, the application provides the following technical scheme: an automatic production equipment for power accessory insulators, comprising: A processing table is used to provide support for the processing operation of the insulator, and a circular mounting hole is formed in the middle of the top of the processing table; A processing mold is installed on the top of the processing table and used to cast the insulator; A material lifting device comprises a supporting ring, a material spraying assembly and a lifting assembly, the supporting ring is installed in the mounting hole, the supporting ring is designed to be hollow, and a plurality of air injection holes are formed on the inner side and the outer side of the supporting ring, the material spraying assembly is connected to the bottom of the supporting ring and used to fill the inside of the supporting ring with external demolding powder, and the lifting assembly is connected to the bottom of the supporting ring and used to drive the supporting ring to move in the vertical direction.

[0007] Further, the processing mold comprises a left mold, a right mold and a mold core, the left mold and the right mold are completely identical half-cylinders, and the side away from each other of the two is connected with a power mechanism, the left mold and the right mold are symmetrically distributed on the top of the supporting ring, and the opening of the two is downward when spliced together, the top of the left mold and the right mold is respectively provided with a feeding hole and an exhaust hole, and the inner diameter of the two after splicing together matches the outer diameter of the supporting ring, the mold core is a cylinder, and the mold core is vertically located at the axis of the supporting ring, a plurality of connecting rods are fixedly connected between the bottom of the mold core and the bottom of the processing table, a semicircular notch matching the diameter of the mold core is formed at the top center of the left mold and the right mold, for clamping the mold core when the left mold and the right mold are spliced together, the inside of the mold core is hollow, and an opening is formed at the bottom end of the mold core, a plurality of vibration assemblies are uniformly arranged inside the mold core from top to bottom, and a connecting ring is sleeved on the mold core, the connecting ring and the inner wall of the mounting hole are both in a stepped shape, for supporting the supporting ring, and when the supporting ring is placed in the mounting hole, the top of the supporting ring can be perfectly spliced together with the top of the processing table and the top of the connecting ring and present a plane effect.

[0008] Further, the material spraying assembly comprises a storage cylinder and a material spraying pipe, the storage cylinder is provided with an air jet pump inside, and the storage is filled with external release powder, and the material spraying pipe is connected between the storage cylinder and the supporting ring.

[0009] Further, the lifting assembly comprises a supporting plate, a plurality of jacks, a plurality of limiting rods, a screw rod and a motor, the supporting plate is horizontally arranged at the bottom of the supporting ring, the plurality of jacks are vertically connected between the supporting ring and the supporting plate, the plurality of limiting rods are vertically and fixedly connected to the bottom of the plurality of connecting rods, and the limiting rods are vertically and slidingly inserted into the supporting plate, the screw rod is vertically and threadedly inserted into the axis of the supporting plate, the top end of the screw rod is rotatably connected with the inside of the top of the mold core, and the motor is drivingly connected to the bottom end of the screw rod.

[0010] Further, the power mechanism comprises a sliding block, an electric push rod, a guide block and a boss, the sliding block is slidingly connected to the side of the left mold or the right mold away from the mold core in the vertical direction, the electric push rod is horizontally mounted on the top of the processing table, and the output end of the electric push rod is fixedly connected with the sliding block, the guide block is fixedly connected to the bottom edge of the side of the left mold or the right mold close to the sliding block, the bottom of the guide block is designed as an inclined surface, and the thickness of the guide block gradually thins away from the mold core, the boss is fixedly connected to the top of the processing table, and the side of the boss close to the guide block is designed as an inclined surface, and the inclined surface of the boss is parallel to and faces the inclined surface of the guide block.

[0011] Furthermore, the vibration assembly includes elastic sheets, striking balls, and protrusions. There are multiple elastic sheets, which are evenly distributed in a ring around the screw and are fixedly connected to the surface of the screw. The bottom end of the elastic sheet is inclined away from the screw. The striking ball is fixedly connected to the bottom end of the elastic sheet. There are multiple protrusions, which are evenly and vertically fixedly connected to the inner wall of the mold core and can contact the striking ball.

[0012] Furthermore, a sealing gasket is provided at the notch, and when the left mold and the right mold are spliced ​​together, the sealing gasket can be tightly attached to the surface of the mold core.

[0013] Furthermore, the top end of the top rod is fixedly connected to the bottom of the support ring, and a movable sleeve is vertically slidably sleeved at the bottom end of the top rod, with the bottom end of the movable sleeve fixedly connected to the top of the support plate.

[0014] Furthermore, the width of the boss is greater than the diameter of the left or right mold, and the left or right mold can be completely supported by the boss.

[0015] The technical effects and advantages of this invention are as follows: 1. The present invention, by setting up a spraying component, can uniformly spray external release powder into the contact position between the blank and the mold and the support ring through the air jet hole of the support ring, forming an isolation layer on the contact surface, which greatly reduces the adhesion between the blank and the contact surface, reduces the demolding resistance, and, together with the vibration generated by the vibration component during demolding, avoids the blank from being damaged or deformed during demolding, significantly improving the pass rate and quality stability of the finished insulator. 2. This invention features a movable sleeve. When the casting is completed and the motor is started to extrude the raw material using the support ring, the presence of the movable sleeve allows the screw to move the support plate and the movable sleeve upwards in the initial stage of screw rotation, while the ejector rod remains stationary. However, as the screw rotates, it drives the striking ball to continuously strike the protrusion, generating vibration. This ensures that the blank in the mold is fully vibrated before the support plate pushes the support ring upwards via the ejector rod, making the raw material more compact and improving the quality of the finished product after subsequent extrusion molding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first overall structure of the present invention; Figure 2 This is a schematic diagram of the second overall structure of the present invention; Figure 3 This is a three-dimensional sectional view of the processing table in this invention; Figure 4 In this invention Figure 3 Enlarged view of part A; Figure 5 This is a three-dimensional schematic diagram of the support ring in this invention; Figure 6 This is a three-dimensional schematic diagram of the right mold and the power mechanism in this invention.

[0017] In the diagram: 1. Machining table; 2. Support ring; 3. Left mold; 4. Right mold; 5. Mold core; 6. Connecting rod; 7. Connecting ring; 8. Storage cylinder; 9. Spray tube; 10. Support plate; 11. Ejector rod; 12. Limiting rod; 13. Screw; 14. Motor; 15. Slider; 16. Electric push rod; 17. Guide block; 18. Boss; 19. Elastic sheet; 20. Impact ball; 21. Raised strip; 22. Sealing gasket; 23. Movable sleeve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0019] This invention provides, for example Figures 1 to 6 An automated production equipment for power component insulators is shown, comprising: a processing table 1, a processing mold, and a material ejector. The processing table 1 provides support for the processing of insulators, and a circular mounting hole is provided through the center of the top of the processing table 1. The processing mold is installed on the top of the processing table 1 for casting insulators. The material ejector includes a support ring 2, a spraying assembly, and a lifting assembly. The support ring 2 is installed in the mounting hole and is hollow. Several air jet holes are provided on the inner and outer sides of the support ring 2. The spraying assembly is connected to the bottom of the support ring 2 and is used to fill the support ring 2 with external release powder. The lifting assembly is connected to the bottom of the support ring 2 and is used to move the support ring 2 vertically. The spraying assembly includes a storage cylinder 8 and a spraying pipe 9. An air jet pump is installed in the storage cylinder 8, and the storage cylinder contains external release powder. The spraying pipe 9 is connected between the storage cylinder 8 and the support ring 2. The processing mold includes a left mold 3, a right mold 4, and a mold core 5. The left mold 3 and right mold 4 are identical semi-cylindrical shapes, and a power mechanism is connected to each other on their opposite sides. The left mold 3 and right mold 4 are symmetrically distributed on the top of the support ring 2, and their openings face downwards when joined together. The tops of the left mold 3 and right mold 4 are respectively provided with a feed hole and a vent hole, and their inner diameter after joining matches the outer diameter of the support ring 2. The mold core 5 is cylindrical and vertically located at the axis of the support ring 2. Several connecting rods 6 are fixedly connected between the bottom of the mold core 5 and the bottom of the processing table 1. The left mold 3... Both the left and right molds 3 and 4 have a semi-circular notch at the top center that matches the diameter of the mold core 5. This notch is used to clamp the mold core 5 when the left and right molds 3 and 4 are joined together. The mold core 5 has a hollow interior and an opening at the bottom. Multiple vibration components are evenly arranged inside the mold core 5 from top to bottom. A connecting ring 7 is fitted onto the mold core 5. Both the connecting ring 7 and the inner wall of the mounting hole are trapezoidal to support the support ring 2. When the support ring 2 is placed in the mounting hole, the top of the support ring 2 can be perfectly joined with the top of the processing table 1 and the top of the connecting ring 7 to present a flat effect. The power mechanism includes a slider 15, an electric push rod 16, a guide block 17, and a boss 18. The slider 15 is slidably connected to the side of the left mold 3 or the right mold 4 away from the mold core 5 in a vertical direction. The electric push rod 16 is horizontally installed on the top of the processing table 1, and the output end of the electric push rod 16 is fixedly connected to the slider 15. The guide block 17 is fixedly connected to the bottom edge of the left mold 3 or the right mold 4 near the slider 15. The bottom of the guide block 17 is designed with a slope, and the thickness of the guide block 17 gradually decreases in the direction away from the mold core 5. The boss 18 is fixedly connected to the top of the processing table 1. The side of the boss 18 near the guide block 17 is designed with a slope, and the slope of the boss 18 is parallel to and directly opposite the slope of the guide block 17. The width of the boss 18 is greater than the diameter of the left mold 3 or the right mold 4, and the left mold 3 or the right mold 4 can be completely supported by the boss 18. The lifting assembly includes a support plate 10, a push rod 11, a limiting rod 12, a screw 13, and a motor 14. The support plate 10 is horizontally positioned at the bottom of the support ring 2. There are multiple push rods 11, which are vertically connected between the support ring 2 and the support plate 10. There are multiple limiting rods 12, which are vertically fixed to the bottom of multiple connecting rods 6. The limiting rods 12 are vertically slidably inserted into the support plate 10. The screw 13 is vertically threaded through and inserted into the axis of the support plate 10. The top end of the screw 13 is rotatably connected to the top of the mold core 5. The motor 14 is driven and connected to the bottom end of the screw 13. The vibration assembly includes elastic plates 19, striking balls 20, and protrusions 21. There are multiple elastic plates 19, which are evenly distributed in a ring around the screw 13 and are fixedly connected to the surface of the screw 13. The bottom end of the elastic plate 19 is inclined away from the screw 13. The striking ball 20 is fixedly connected to the bottom end of the elastic plate 19. There are multiple protrusions 21, which are evenly and vertically fixedly connected to the inner wall of the mold core 5 and can contact the striking ball 20.

[0020] The present invention mainly involves the following steps in the production of insulators: Mold closing: The electric push rod 16 of the power mechanism is activated. The output end of the electric push rod 16 pushes the slider 15 to move towards the mold core 5, causing the left mold 3 and the right mold 4 to move closer to each other. During this process, the left mold 3 and the right mold 4 can slide their bottom guide blocks 17 down along the inclined surface of the boss 18 under the action of gravity, so that the left mold 3 and the right mold 4 can complete the vertical sinking while moving horizontally, until the two are completely spliced ​​together. The mold core 5 can be inserted into the semi-circular notch at the top of the left mold 3 and the right mold 4 to complete the mold closing. At this time, the mold opening faces downward, and the bottom of the mold is in contact with the flat surface of the support ring 2 and the top of the processing table 1 to form a sealed casting cavity.

[0021] Powder spraying isolation: After the mold is closed, the motor 14 in the lifting assembly and the air pump of the spraying assembly are started, so that the support plate 10 can drive the support ring 2 to move upward in the vertical direction under the action of the screw 13. During this process, the air pump presses the external demolding powder in the storage cylinder 8 into the hollow support ring 2 through the spraying pipe 9. The powder is evenly sprayed onto the outer wall of the mold core 5 and the inner wall of the mold through the air spray holes on the inner and outer sides of the support ring 2, thereby forming a uniform isolation powder layer on the inner wall of the mold and the outer wall of the mold core 5, reducing the adhesion between the blank and the contact surface, and preparing for subsequent demolding. After the powder spraying is completed, the air pump is turned off, and then the motor 14 drives the screw 13 to rotate in the opposite direction, thereby driving the support ring 2 to return to its original position.

[0022] Raw material casting: The insulator molding raw material is injected into the cavity after mold closing through the feeding hole at the top of the left mold 3. During the casting process, the air in the cavity is discharged through the vent hole at the top of the right mold 4 to ensure that the raw material can fill the cavity smoothly. After the raw material is cast to the specified amount, feeding is stopped and the feeding hole is closed to complete the casting operation.

[0023] Vibration compaction: Start the motor 14 of the lifting component. The motor 14 drives the screw 13 to rotate. As the screw 13 rotates, it drives the multi-layer elastic sheet 19 on its surface to rotate synchronously. The striking ball 20 at the bottom of the elastic sheet 19 continuously collides with the protrusion 21 on the inner wall of the mold core 5 during the rotation process, generating vibration. Then, the vibration is transmitted through the mold core 5 to the raw material inside the cavity, causing the air bubbles inside the raw material to quickly rise and be discharged through the vent hole. At the same time, it makes the raw material fill the cavity more densely, avoiding defects such as porosity and looseness in the finished product. Vibration continues until the raw material is initially formed. Then, the motor 14 is turned off and the vibration stops.

[0024] Mold opening: Restart the electric push rod 16. The output end of the electric push rod 16 pulls the slider 15 to move away from the mold core 5, causing the left mold 3 and the right mold 4 to separate from each other. During this process, the guide block 17 slides upward along the inclined surface of the boss 18, so that the left mold 3 and the right mold 4 can move horizontally and then rise vertically, thereby realizing the rapid separation of the insulator blank from the mold until the mold is fully opened, completing the mold opening operation.

[0025] Unmolding: After the mold opens, the motor 14 is restarted to drive the screw 13 to continue rotating. Due to the guiding and limiting effect of the limit rod 12 on the support plate 10, the rotational motion of the screw 13 is converted into the vertical upward linear motion of the support plate 10. This allows the support plate 10 to drive the support ring 2 to move smoothly upward in the vertical direction through the push rod 11, thereby lifting the insulator blank upward and gradually separating the blank from the mold core 5, completing the automated unmolding. During the process of the support ring 2 lifting the blank upward, the striking ball 20 can continuously collide with the protrusion 21 on the inner wall of the mold core 5 to generate vibration, thereby assisting in the separation of the blank from the mold core 5. When the blank is lifted to the top position of the mold core 5, the operator can directly remove the unmolded insulator blank, and then control the motor 14 to rotate in the opposite direction, driving the support ring 2 to return to the initial position, ready for the next production operation.

[0026] This invention effectively solves the problem of blank sticking by spraying release powder through the spraying component and cooperating with the high-frequency vibration of the vibration component, thus avoiding demolding damage; the power mechanism realizes the horizontal and vertical linkage opening and closing of the mold, and the lifting component completes the automated ejection and demolding, without manual operation throughout the process, improving production efficiency; the coordinated cooperation of various components realizes the automation of insulator forming and demolding, ensuring the forming accuracy of blanks and the quality of finished products, and is suitable for industrial continuous production.

[0027] like Figure 1 As shown, a sealing gasket 22 is provided at the notch, and when the left mold 3 and the right mold 4 are spliced ​​together, the sealing gasket 22 can be tightly attached to the surface of the mold core 5. By setting a sealing gasket 22, during the mold closing process of the left mold 3 and the right mold 4, when the left mold 3 and the right mold 4 are completely closed together, the gaps of the left mold 3 and the right mold 4 can be tightly fitted together with the mold core 5 through the sealing gasket 22. This achieves stable clamping of the mold core 5 while improving the sealing performance between the left mold 3, the right mold 4 and the mold core 5, and preventing the billet from leaking through the gap between the mold and the mold core 5 during the extrusion process.

[0028] like Figure 1 and Figure 3 As shown, the top end of the top rod 11 is fixedly connected to the bottom of the support ring 2, and the bottom end of the top rod 11 is vertically slidably sleeved with a movable sleeve 23, the bottom end of the movable sleeve 23 is fixedly connected to the top of the support plate 10. When the casting is completed and the motor 14 is started to drive the support ring 2 to extrude the raw material, due to the presence of the movable sleeve 23, in the initial stage of the screw 13 rotation, the screw 13 can drive the support plate 10 and the movable sleeve 23 to move upward, but the ejector rod 11 can remain stationary. However, as the screw 13 rotates, the screw 13 can drive the striking ball 20 to continuously strike the protrusion 21 to generate vibration. Thus, before the support plate 10 pushes the support ring 2 upward through the ejector rod 11, the blank in the mold can be fully vibrated, thereby making the raw material more compact and improving the quality of the finished product after the blank is extruded and molded.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An automated production equipment for power component insulators, characterized in that, include: The processing table (1) is used to provide support for the processing operation of the insulator, and a circular mounting hole is provided through the middle of the top of the processing table (1); A processing mold is installed on the top of the processing table (1) for casting insulators; The ejector device includes a support ring (2), a spraying assembly, and a lifting assembly. The support ring (2) is installed in the mounting hole. The support ring (2) is hollow and has several air jet holes on its inner and outer sides. The spraying assembly is connected to the bottom of the support ring (2) and is used to fill the support ring (2) with external release powder. The lifting assembly is connected to the bottom of the support ring (2) and is used to drive the support ring (2) to move vertically.

2. The automated production equipment for power component insulators according to claim 1, characterized in that: The processing mold includes a left mold (3), a right mold (4), and a mold core (5). The left mold (3) and the right mold (4) are identical semi-cylindrical shapes, and a power mechanism is connected to the side of each mold that is separated from the other. The left mold (3) and the right mold (4) are symmetrically distributed on the top of the support ring (2), and the openings face downwards when they are joined together. The tops of the left mold (3) and the right mold (4) are respectively provided with a feed hole and an exhaust hole, and the inner diameter of the two molds after being joined together matches the outer diameter of the support ring (2). The mold core (5) is cylindrical, and the mold core (5) is vertically located at the axis of the support ring (2). Several connecting rods (6) are fixedly connected between the bottom of the mold core (5) and the bottom of the processing table (1). The left mold (3) and the right mold (4) each have a semi-circular notch at the top center that matches the diameter of the mold core (5), which is used to clamp the mold core (5) when the left mold (3) and the right mold (4) are spliced ​​together. The mold core (5) has a hollow design inside and an opening at the bottom. Multiple vibration components are evenly arranged inside the mold core (5) from top to bottom. A connecting ring (7) is sleeved on the mold core (5). The connecting ring (7) and the inner wall of the mounting hole are both trapezoidal, which are used to support the support ring (2). When the support ring (2) is placed in the mounting hole, the top of the support ring (2) can be perfectly spliced ​​with the top of the processing table (1) and the top of the connecting ring (7) and present a flat effect.

3. The automated production equipment for power component insulators according to claim 2, characterized in that: The spraying assembly includes a storage cylinder (8) and a spraying pipe (9). The storage cylinder (8) is equipped with an air pump and stores external release powder. The spraying pipe (9) is connected between the storage cylinder (8) and the support ring (2).

4. The automated production equipment for power component insulators according to claim 3, characterized in that: The lifting assembly includes a support plate (10), a top rod (11), a limiting rod (12), a screw (13), and a motor (14). The support plate (10) is horizontally positioned at the bottom of the support ring (2). There are multiple top rods (11), which are vertically connected between the support ring (2) and the support plate (10). There are multiple limiting rods (12), which are vertically fixed to the bottom of multiple connecting rods (6) respectively. The limiting rods (12) are vertically slidably inserted into the support plate (10). The screw (13) is vertically threaded through and inserted into the axis of the support plate (10). The top of the screw (13) is rotatably connected to the top of the mold core (5). The motor (14) is driven and connected to the bottom of the screw (13).

5. The automated production equipment for power component insulators according to claim 4, characterized in that: The power mechanism includes a slider (15), an electric push rod (16), a guide block (17), and a boss (18). The slider (15) is slidably connected to the left mold (3) or the right mold (4) away from the mold core (5) in the vertical direction. The electric push rod (16) is horizontally installed on the top of the processing table (1), and the output end of the electric push rod (16) is fixedly connected to the slider (15). The guide block (17) is fixedly connected to the bottom edge of the left mold (3) or the right mold (4) near the slider (15). The bottom of the guide block (17) is designed with a slope, and the thickness of the guide block (17) gradually decreases in the direction away from the mold core (5). The boss (18) is fixedly connected to the top of the processing table (1). The side of the boss (18) near the guide block (17) is designed with a slope, and the slope of the boss (18) is parallel to and directly opposite the slope of the guide block (17).

6. The automated production equipment for power component insulators according to claim 5, characterized in that: The vibration assembly includes an elastic sheet (19), a striking ball (20), and a ridge (21). There are multiple elastic sheets (19), which are evenly distributed in a ring around the screw (13) and are fixedly connected to the surface of the screw (13). The bottom end of the elastic sheet (19) is inclined away from the screw (13). The striking ball (20) is fixedly connected to the bottom end of the elastic sheet (19). There are multiple ridges (21), which are evenly and vertically fixedly connected to the inner wall of the mold core (5) and can contact the striking ball (20).

7. The automated production equipment for power component insulators according to claim 6, characterized in that: A sealing gasket (22) is provided at the notch, and when the left mold (3) and the right mold (4) are spliced ​​together, the sealing gasket (22) can be tightly attached to the surface of the mold core (5).

8. The automated production equipment for power component insulators according to claim 7, characterized in that: The top end of the top rod (11) is fixedly connected to the bottom of the support ring (2), and the bottom end of the top rod (11) is vertically slidably sleeved with a movable sleeve (23), and the bottom end of the movable sleeve (23) is fixedly connected to the top of the support plate (10).

9. The automated production equipment for power component insulators according to claim 8, characterized in that: The width of the boss (18) is greater than the diameter of the left mold (3) or the right mold (4), and the left mold (3) or the right mold (4) can be completely supported by the boss (18).

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