Arrester winding equipment

Abstract

The lightning arrester winding equipment comprises a continuous fiber untwisted yarn, a temperature control gum dipping device, a pre-crosslinking device and a winding forming device, the temperature control gum dipping device comprises a temperature control gum dipping groove and a pre-dipping roller, a groove front positioning gum scraping ring is installed in front of the temperature control gum dipping groove, a groove rear positioning gum scraping ring is installed behind the temperature control gum dipping groove, and the pre-crosslinking device comprises a pre-crosslinking device and a winding forming device. The pre-crosslinking device comprises a high-temperature channel, and a heating front-end positioning glue scraping ring is mounted at the front end of the high-temperature channel. According to the lightning arrester winding equipment, through the arrangement of the pre-crosslinking device, the lightning arrester winding equipment has the effects that a crosslinking reaction is activated before winding, so that the viscosity of resin is improved, and the situation that the resin flows in the gravity direction during winding, so that the resin is uniformly distributed is avoided; the lightning arrester winding equipment has the effects that resin wrapping fibers is reshaped before winding, so that the resin is round and full, the fibers are stacked in order, and rhombic grid holes with regular depth and straightness are formed, so that the lightning protection effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of arrester production equipment, in particular to arrester winding equipment. Background Art

[0002] Composite jacket metal oxide arrester is a protective device used to protect power facilities from overvoltage shock damage. Its mechanical strength is completely dependent on the internal fiber-reinforced composite material. After the pre-impregnated fiber is wound on the surface of the arrester core group by the traditional winding molding method, in the early stage of curing, due to the violent thermal motion of the resin molecular chain, the cross-linking reaction has not yet been activated, the resin viscosity is low, and it is very easy to flow along the direction of gravity, resulting in uneven distribution of resin in the winding structure. The modulus, thermal expansion coefficient and other physical properties of the fiber-reinforced composite material vary greatly. After high-temperature silicone rubber vulcanization packaging, it is easy to cause bending deformation, cracking and other serious problems that affect the performance parameters of the arrester. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a lightning arrester winding device, which has the advantages of uniform distribution of resin in the winding structure to ensure the quality of the lightning arrester, and solves the problem of lightning arrester quality problems caused by uneven distribution of resin in the winding structure.

[0004] (II) Technical solution In order to achieve the purpose of uniform distribution of resin in the above-mentioned winding structure to ensure the quality of the lightning arrester, the present invention provides the following technical solutions: a lightning arrester winding equipment, including continuous fiber untwisted yarn, a temperature-controlled dipping device, a pre-cross-linking device and a winding molding device, the temperature-controlled dipping device includes a temperature-controlled dipping tank and a pre-impregnation roller, a front-trough positioning scraper ring is installed in front of the temperature-controlled dipping tank, and a rear-trough positioning scraper ring is installed behind the temperature-controlled dipping tank, the pre-cross-linking device includes a high-temperature channel, and a heating front-end positioning scraper ring is installed at the front end of the high-temperature channel, the winding molding device includes a mechanical arm, a vertical slide rail, a cylinder pressure rod and a multi-speed rotating base, and a lightning arrester core group is placed between the cylinder pressure rod and the multi-speed rotating base.

[0005] Preferably, the continuous fiber untwisted yarn passes through the front-slot positioning scraper ring, prepreg roller, rear-slot positioning scraper ring, heating front-end positioning scraper ring, high-temperature channel and robotic arm in sequence, and is finally wound onto the outer surface of the arrester core group at a controlled height by the robotic arm.

[0006] Preferably, the function of the front-groove positioning scraper ring is to correct the contact position between the continuous fiber untwisted yarn and the prepreg roller, and the function of the rear-groove positioning scraper ring and the heating front-end positioning scraper ring is the same, that is, the excess resin is scraped off through the relative movement between the two, thereby controlling the resin content and distribution on the continuous fiber untwisted yarn to ensure the quality and performance of the winding arrester core group.

[0007] Preferably, the temperature-controlled impregnation tank is a rectangular tank with a heating function, which is used to heat the resin to a certain temperature and keep it warm. The viscosity of the resin can be changed by adjusting the temperature, that is, within a certain range, the higher the temperature, the lower the resin viscosity. The prepreg roller is installed in the upper middle of the temperature-controlled impregnation tank and the bottom is immersed in the resin. When the prepreg roller is driven to rotate by a motor, the resin can be evenly adhered to its outer surface and the continuous fiber untwisted yarn can be impregnated under the action of calendering.

[0008] Preferably, the pre-cross-linking device comprises one or more high-temperature channels, which include an inner tube, and an outer tube with a larger middle and smaller ends is sleeved on the outer side of the inner tube. When the outer tube and the inner tube are sleeved, a closed cavity is formed and the interior is filled with heat transfer oil. A heating rod and a temperature sensor are installed on the side of the outer tube.

[0009] Preferably, the continuous fiber untwisted yarn passes through the middle of the high-temperature channel and is heated, which can further reduce the viscosity of the resin coated on the surface and more fully infiltrate the continuous fiber untwisted yarn. At this time, the resin cross-linking reaction is activated under the action of high temperature, and the viscosity increases after natural cooling. As the cross-linking reaction proceeds slowly, the gel loses fluidity.

[0010] Preferably, the robotic arm includes a half-wrapped bracket, a roller sleeve is installed inside the half-wrapped bracket through a bearing, a gear ring is sleeved on the outer side of the middle position of the roller sleeve, an electric motor is installed at the rear of the robotic arm, a driving gear meshing with the gear ring is installed on the rotating shaft of the electric motor, the roller sleeve is perpendicular to the arrester core group, a through hole with a smooth inner wall for passing the continuous fiber untwisted yarn is opened in the middle of the roller sleeve, and the electric motor drives the roller sleeve to rotate when working, and the rotating roller sleeve plasticizes the resin coating the outer side of the continuous fiber untwisted yarn through the through hole to make it round.

[0011] Preferably, when the vertical slide rail is in operation, it drives the mechanical arm to perform up and down reciprocating motion, so that the continuous fiber untwisted yarn can be evenly wound on the arrester core group.

[0012] Preferably, the multi-speed rotating base drives the arrester core group to rotate at a uniform speed when working, so that the continuous fiber untwisted yarn can be evenly wound on the arrester core group, wherein the function of the cylinder pressure rod is to fix the arrester core group on the multi-speed rotating base.

[0013] Compared with the prior art, the present invention provides a lightning arrester winding device, which has the following beneficial effects: 1. The arrester winding equipment, through the setting of the pre-cross-linking device, has the effect of activating the cross-linking reaction before winding to increase the viscosity of the resin, avoid the resin flowing in the direction of gravity during winding, and make the resin evenly distributed. Before the fiber winding, the resin is evenly heated through the high-temperature channel in the pre-cross-linking device, so that the resin undergoes a cross-linking reaction under the action of high temperature, and the viscosity increases after cooling and the gel loses fluidity, thereby avoiding the resin flowing in the direction of gravity during winding, making the resin evenly distributed to avoid the generation of internal stress, thereby avoiding the deformation of the arrester and achieving the effect of improving product quality.

[0014] 2. The lightning arrester winding equipment, through the setting of the mechanical arm, has the effect of reshaping the resin wrapped around the fiber before winding to make it round, so as to achieve the effect of neatly stacking the fibers to form straight, deep and regular diamond grid holes to improve the lightning protection effect. The roller sleeve rotating at a constant speed inside the mechanical arm plasticizes the resin that is already in a gel state and has reduced viscosity around the fiber, so that the resin can be evenly and roundly wrapped on the outer surface of the fiber, so that the fibers are neatly stacked during winding and form straight, deep and regular diamond grid holes, thereby achieving the effect of improving lightning protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the front view of the arrester winding device proposed by the present invention; Figure 2 This is a structural schematic diagram of a cross-sectional view of a high-temperature channel of a lightning arrester winding device proposed by the present invention; Figure 3 This is a structural schematic diagram of a three-dimensional view of a mechanical arm of a lightning arrester winding device proposed by the present invention; Figure 4 This is a structural schematic diagram of a cross-sectional view of the mechanical arm of the lightning arrester winding equipment proposed by the present invention.

[0016] In the figure: 1. Continuous fiber untwisted yarn; 2. Temperature-controlled dipping device; 201. Temperature-controlled dipping tank; 202. Pre-preg roller; 203. Glue scraping ring for positioning in front of the tank; 204. Glue scraping ring for positioning in back of the tank; 3. Pre-crosslinking device; 301. High-temperature channel; 3011. Inner tube; 3012. Outer tube; 3013. Heat transfer oil; 3014. Heating rod; 3015. Temperature sensor; 302. Heating front end positioning scraping ring; 4. Winding molding device; 401. Robotic arm; 4011. Half-wrapped bracket; 4012. Roller sleeve; 4013. Gear ring; 4014. Electric motor; 4015. Driving gear; 402. Vertical slide rail; 403. Cylinder pressure rod; 404. Multi-speed rotating base; 5. Lightning arrester core group. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-4A lightning arrester winding device comprises a continuous fiber untwisted yarn 1, a temperature-controlled impregnation device 2, a pre-crosslinking device 3 and a winding molding device 4. The temperature-controlled impregnation device 2 comprises a temperature-controlled impregnation tank 201 and a pre-impregnation roller 202. A front-positioning scraping ring 203 is installed in front of the temperature-controlled impregnation tank 201, and a rear-positioning scraping ring 204 is installed behind the temperature-controlled impregnation tank 201. The temperature-controlled impregnation tank 201 is a rectangular tank body with a heating function, which is used to heat the resin to a certain temperature and keep it warm. The viscosity of the resin can be changed by adjusting the temperature, that is, within a certain range, the higher the temperature, the lower the viscosity of the resin. The pre-impregnation roller 202 is installed in the middle and upper part of the temperature-controlled impregnation tank 201 and the bottom is immersed in the resin. When the pre-impregnation roller 202 is driven by a motor to rotate, its outer surface can be uniform. The pre-crosslinking device 3 is glued with resin and impregnates the continuous fiber untwisted yarn 1 under the action of calendering. The pre-crosslinking device 3 includes a high-temperature channel 301. A heating front-end positioning scraper ring 302 is installed at the front end of the high-temperature channel 301. The pre-crosslinking device 3 includes one or more high-temperature channels 301. The high-temperature channel 301 includes an inner tube 3011. The outer side of the inner tube 3011 is sleeved with an outer tube 3012 with a large middle and small two ends. When the outer tube 3012 is sleeved with the inner tube 3011, a closed cavity is formed and the interior is filled with heat transfer oil 3013. A heating rod 3014 and a temperature sensor 3015 are installed on the side of the outer tube 3012. The continuous fiber untwisted yarn 1 passes through the middle of the high-temperature channel 301 and is heated, which can further reduce the viscosity of the resin coated on the surface and more fully impregnate the continuous fiber untwisted yarn 1. The continuous fiber untwisted yarn 1, at this time, the resin cross-linking reaction is activated under the action of high temperature, the viscosity increases after natural cooling, and the gel loses fluidity as the cross-linking reaction slowly proceeds, the winding molding device 4 includes a mechanical arm 401, a vertical slide rail 402, a cylinder pressure rod 403 and a multi-speed rotating base 404, and a lightning arrester core group 5 is placed between the cylinder pressure rod 403 and the multi-speed rotating base 404. The continuous fiber untwisted yarn 1 passes through the front groove positioning scraper ring 203, the prepreg roller 202, the rear groove positioning scraper ring 204, the heating front end positioning scraper ring 302, the high-temperature channel 301 and the mechanical arm 401 in turn, and is finally wound onto the outer surface of the lightning arrester core group 5 by controlling the height through the mechanical arm 401. The front groove positioning scraper ring 203 is used to correct the continuous The position where the fiber untwisted yarn 1 contacts the prepreg roller 202, the positioning scraper ring 204 behind the groove has the same function as the positioning scraper ring 302 at the front end of the heating, both of which scrape off excess resin through relative movement between the two, thereby controlling the resin content and distribution on the continuous fiber untwisted yarn 1 to ensure the quality and performance of the winding arrester core group 5. Specifically, when the continuous fiber untwisted yarn 1 passes through the positioning scraper ring, the positioning scraper ring will scrape off excess resin on the surface of the continuous fiber untwisted yarn 1 and evenly distribute the resin on the surface of the continuous fiber untwisted yarn 1, thereby ensuring that the resin content and distribution of the continuous fiber untwisted yarn 1 are uniform during the winding process. The mechanical arm 401 includes a half-wrapped bracket 4011, and a roller sleeve 4012 is installed inside the half-wrapped bracket 4011 through a bearing.The outer side surface of the middle position of the roller sleeve 4012 is sleeved with a gear ring 4013, and an electric motor 4014 is installed at the rear of the mechanical arm 401. The rotating shaft of the electric motor 4014 is installed with a driving gear 4015 meshing with the gear ring 4013. The roller sleeve 4012 is perpendicular to the arrester core group 5. A through hole with a smooth inner wall for passing the continuous fiber untwisted yarn 1 is opened in the middle of the roller sleeve 4012. When the electric motor 4014 is working, it drives the roller sleeve 4012 to rotate, and the rotating roller sleeve 4012 passes through The through hole plasticizes the resin coated on the outside of the continuous fiber untwisted yarn 1 to make it round. When the vertical slide rail 402 is working, it drives the mechanical arm 401 to do up and down reciprocating motion, so that the continuous fiber untwisted yarn 1 can be evenly wound on the arrester core group 5. When the multi-speed rotating base 404 is working, it drives the arrester core group 5 to rotate at a constant speed, so that the continuous fiber untwisted yarn 1 can be evenly wound on the arrester core group 5. The function of the cylinder pressure rod 403 is to fix the arrester core group 5 on the multi-speed rotating base 404.

[0019] When in use, first prepare a maximum of 5 kg of resin in the ratio of epoxy resin: curing agent: accelerator = 1:0.8:0.003. Specifically, first pour 1 kg of epoxy resin into a mixing bucket and then pour 0.8 kg of curing agent. Then use a small electronic scale to weigh 0.008 kg of accelerator and pour it into the mixing bucket. Finally, use a blender to stir for 5 minutes to make the epoxy resin glue evenly configured for use. Further turn on the power switch of the equipment to check whether it is operating normally. Further adjust the parameters of the equipment according to the needs of the arrester, including the heating temperature of the temperature-controlled dipping tank 201, the rotation speed of the prepreg roller 202, the temperature of the high-temperature channel 301, and the rotation speed of the arrester core group 5. Further add the resin into the temperature-controlled dipping tank 201 and heat it to The temperature of the high temperature channel 301 is between 85℃ and 100℃, and the amount of glue poured in each time must flood the prepreg roller 202. At the same time, the pre-crosslinking device 3 is started to heat the heat transfer oil 3013 in the high temperature channel 301 through the heating rod 3014 to increase the temperature of the high temperature channel 301. The continuous fiber untwisted yarn 1 is further passed through the front positioning scraping glue ring 203, the prepreg roller 202, the rear positioning scraping glue ring 204, the heating front positioning scraping glue ring 302, the high temperature channel 301 and the mechanical arm 401 in sequence, and finally wound onto the outer surface of the arrester core group 5. The switch driving the prepreg roller 202 to rotate is further started. At this time, the prepreg roller 202 rolls the resin in the temperature-controlled dipping tank 201 onto the prepreg roller 202. Finally, the outer surface of the prepreg roller 202 is formed during the rotation process. The continuous resin layer is formed, and the multi-speed rotating base 404 drives the arrester core group 5 to rotate and pull the continuous fiber untwisted yarn 1. When the continuous fiber untwisted yarn 1 passes through the upper surface of the prepreg roller 202, the resin can be evenly adhered to the outer surface of the continuous fiber untwisted yarn 1 and the continuous fiber untwisted yarn 1 is infiltrated under the action of calendering. The continuous fiber untwisted yarn 1 wrapped with resin enters the high-temperature channel 301 for heating. In this process, the cross-linking reaction of the resin is activated under the action of high temperature. The heated resin follows the movement of the continuous fiber untwisted yarn 1 and walks out of the high-temperature channel 301. The heated resin is cooled in the natural environment to increase the viscosity and the gel loses fluidity as the cross-linking reaction proceeds slowly. After the cross-linking reaction, the The gel resin that has lost its fluidity enters the rotating roller sleeve 4012 with the movement of the continuous fiber untwisted yarn 1. The resin can shape the parts with large diameter or uneven distribution or deformation through the rotating small holes of the roller sleeve 4012, so that the resin can be rounded on the continuous fiber untwisted yarn 1. The plasticized resin is further wound on the lightning arrester core group 5 together with the continuous fiber untwisted yarn 1. The winding effect of the lightning arrester core group 5 is the same as that of a single-group winding machine, with a large grid winding structure, layer by layer until it is fully wound and stops automatically. In this process, since the resin has poor fluidity and is uniform and round after being plasticized, the diamond grid holes formed by the winding are straight, deep and regular, thereby improving the lightning protection effect. After the winding is completed, the lightning arrester core group 5 is removed.

[0020] To sum up, the arrester winding equipment heats the resin uniformly through the high-temperature channel 301 in the pre-cross-linking device 3 before fiber winding, so that the resin undergoes a cross-linking reaction under the action of high temperature, and its viscosity increases after cooling and the gel loses fluidity, thereby preventing the resin from flowing in the direction of gravity during winding, and making the resin evenly distributed to avoid internal stress, thereby preventing the arrester from deforming and achieving the effect of improving product quality. The roller sleeve 4012 that rotates at a constant speed inside the mechanical arm 401 plasticizes the resin that is already in a gel state and has reduced viscosity around the fiber, so that the resin can be evenly and roundly wrapped on the outer surface of the fiber, so that the fibers are neatly stacked during winding and form straight, deep and regular diamond grid holes, thereby achieving the effect of improving lightning protection.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning arrester winding device, comprising a continuous fiber untwisted yarn (1), a temperature-controlled dipping device (2), a pre-crosslinking device (3) and a winding molding device (4), characterized in that: The temperature-controlled glue dipping device (2) comprises a temperature-controlled glue dipping tank (201) and a pre-preg roller (202); a front-tank positioning glue scraping ring (203) is installed in front of the temperature-controlled glue dipping tank (201); a rear-tank positioning glue scraping ring (204) is installed behind the temperature-controlled glue dipping tank (201); the pre-crosslinking device (3) comprises a high-temperature channel (301); a front-end heating positioning glue scraping ring (302) is installed at the front end of the high-temperature channel (301); the winding molding device (4) comprises a mechanical arm (401), a vertical slide rail (402), a cylinder pressure rod (403) and a multi-speed rotating base (404); a lightning arrester core group (5) is placed between the cylinder pressure rod (403) and the multi-speed rotating base (404).

2. The lightning arrester winding device according to claim 1, characterized in that: The continuous fiber untwisted yarn (1) passes through the front-slot positioning scraper ring (203), the prepreg roller (202), the rear-slot positioning scraper ring (204), the heating front-end positioning scraper ring (302), the high-temperature channel (301) and the mechanical arm (401) in sequence, and is finally wound onto the outer surface of the arrester core group (5) at a controlled height by the mechanical arm (401).

3. The lightning arrester winding device according to claim 1, characterized in that: The function of the front-groove positioning scraper ring (203) is to correct the contact position between the continuous fiber untwisted yarn (1) and the prepreg roller (202). The rear-groove positioning scraper ring (204) and the heating front-end positioning scraper ring (302) have the same function of scraping off excess resin through relative movement between the two, thereby controlling the resin content and distribution on the continuous fiber untwisted yarn (1) to ensure the quality and performance of the wound arrester core group (5).

4. The lightning arrester winding device according to claim 1, characterized in that: The temperature-controlled resin impregnation tank (201) is a rectangular tank body with a heating function, which is used to heat the resin to a certain temperature and keep it warm. The viscosity of the resin can be changed by adjusting the temperature, that is, within a certain range, the higher the temperature, the lower the resin viscosity. The prepreg roller (202) is installed in the upper middle of the temperature-controlled resin impregnation tank (201) and the bottom is immersed in the resin. When the prepreg roller (202) is driven to rotate by a motor, the resin can be evenly adhered to its outer surface and the continuous fiber untwisted yarn (1) can be impregnated under the action of calendering.

5. The lightning arrester winding device according to claim 1, characterized in that: The pre-crosslinking device (3) comprises one or more high-temperature channels (301), wherein the high-temperature channels (301) comprise an inner tube (3011), wherein an outer tube (3012) having a larger middle portion and smaller ends is sleeved on the outer side of the inner tube (3011), wherein when the outer tube (3012) and the inner tube (3011) are sleeved, a closed cavity is formed and the cavity is filled with heat transfer oil (3013), and a heating rod (3014) and a temperature sensor (3015) are installed on the side of the outer tube (3012).

6. The arrester winding device according to claim 1, characterized in that: The continuous fiber untwisted yarn (1) passes through the middle of the high-temperature channel (301) and is heated, which can further reduce the viscosity of the resin coated on the surface and more fully infiltrate the continuous fiber untwisted yarn (1). At this time, the resin cross-linking reaction is activated under the action of high temperature, and the viscosity increases after natural cooling. As the cross-linking reaction slowly proceeds, the gel loses fluidity.

7. The arrester winding device according to claim 1, characterized in that: The mechanical arm (401) comprises a half-enclosed bracket (4011), a roller sleeve (4012) is installed inside the half-enclosed bracket (4011) via a bearing, a gear ring (4013) is sleeved on the outer side surface of the middle position of the roller sleeve (4012), an electric motor (4014) is installed at the rear of the mechanical arm (401), a driving gear (4015) meshing with the gear ring (4013) is installed on the rotating shaft of the electric motor (4014), the roller sleeve (4012) is perpendicular to the arrester core group (5), a through hole with a smooth inner wall for passing the continuous fiber untwisted yarn (1) is opened in the middle of the roller sleeve (4012), and the electric motor (4014) drives the roller sleeve (4012) to rotate when working, and the rotating roller sleeve (4012 plasticizes the resin coated on the outer side of the continuous fiber untwisted yarn (1) through the through hole to make it round.

8. The arrester winding device according to claim 1, characterized in that: When the vertical slide rail (402) is in operation, it drives the mechanical arm (401) to perform up and down reciprocating motion, so that the continuous fiber untwisted yarn (1) can be evenly wound on the arrester core group (5).

9. The arrester winding device according to claim 1, characterized in that: When the multi-speed rotating base (404) is in operation, it drives the arrester core group (5) to rotate at a uniform speed, so that the continuous fiber untwisted yarn (1) can be evenly wound on the arrester core group (5), wherein the cylinder pressure rod (403) functions to fix the arrester core group (5) on the multi-speed rotating base (404).

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