A coiling machine for processing dry sleeves

Abstract

This invention relates to a rolling machine for processing dry bushings, belonging to the technical field of dry bushing processing equipment. It includes a frame, within which a dry bushing forming assembly and an insulated wire core conveying assembly are installed. The insulated wire core conveying assembly ensures the stability of the insulated wire core during conveying. The dry bushing forming assembly includes a forming box and a transmission cabinet. A transmission synchronization assembly within the transmission cabinet connects the mold roller and the glue scraping assembly. A residual material conveying assembly is located at the discharge end of the forming box, and a glue leveling assembly is located on the side wall of the frame. The glue leveling assembly achieves uniform and complete glue coverage on the mold roller surface through double limit plates and electric push rod spacing adjustment. The glue scraping assembly uses a reciprocating screw to drive the scraper, and a gear rack-screw structure enables automatic scraper lifting and lowering to adapt to the arc-shaped surface of the mold roller. The residual material conveying assembly returns the residual material to the impregnation tank for recycling via a closed receiving box and pump pipeline.

Description

Technical Field

[0001] This invention belongs to the technical field of processing equipment for transformer dry bushings, specifically relating to a rolling machine for processing dry bushings. Background Technology

[0002] Transformer bushings are the main insulating devices outside the transformer tank. They serve as current-carrying conductors for introducing or extracting current from the high, medium, and low voltage sides of the transformer and also provide insulation and sealing for the tank casing. Currently, transformer bushings are mainly oil-impregnated paper transformer bushings and dry bushings that use gas medium-assisted insulation. The processing of dry bushings typically includes core winding and impregnation, which has directly driven technological innovation in dry bushing processing equipment. Among these processes, the winding machine is the core component for bushing core forming.

[0003] For example, in Chinese utility model publication CN212531671U, entitled "A Winding Machine for Processing Dry Bushings," the machine specifically includes a bed having a clamping mechanism configured to clamp both ends of a core rod on the clamping mechanism and drive the core rod to rotate; a traveling mechanism mounted on the bed and configured to reciprocate along the bed in a direction parallel to the axis of the core rod; and multiple winding mechanisms on which insulating material layers are arranged along a circle centered on the axis of the core rod. The insulating material layers are distributed in an arc and installed on the traveling mechanism. The insulating material layers on each insulating material layer are wrapped around the core rod in an overlapping manner. When the core rod rotates, the insulating material layers are wound around the core rod synchronously. At the same time, the multiple insulating material layer layers are pulled to rotate and unwind synchronously. However, the uniformity of the winding cannot be guaranteed during the winding process of dry bushing. In order to ensure that the insulating core is uniformly wound into dry bushing, an insulating core conveying assembly is needed to convey the core to the winding machine. Therefore, a winding machine for processing dry bushing is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and rationally designed rolling machine for processing dry bushings in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A rolling machine for processing dry sleeves includes a frame, inside which a dry sleeve forming assembly is provided. The dry sleeve forming assembly includes a forming box installed inside the frame. A transmission cabinet is installed on the side wall of the forming box. A transmission synchronization assembly is installed inside the transmission cabinet. The output end of the transmission synchronization assembly is respectively connected to a mold roller and an adhesive scraping assembly. The adhesive scraping assembly includes a reciprocating screw rotatably connected inside the forming box. A scraper lifting transmission box is threaded onto the outer side wall of the reciprocating screw.

[0007] The scraper lifting transmission box includes a first slider threadedly sleeved with a reciprocating lead screw, a box body fixedly installed at the bottom of the first slider, and a scraper slidably connected through the bottom of the box body;

[0008] One side of the molding box is provided with an insulated wire core conveying assembly. The insulated wire core conveying assembly includes an insulated wire core conveying box that is slidably connected to one side of the frame side wall. An insulated wire core splitting conveying plate is fixedly installed on the other side of the top of the insulated wire core conveying box. An impregnation tank is opened on the insulated wire core conveying box. A first wire guide is fixedly installed on the inner side wall of the impregnation tank. A second wire guide is fixedly installed on one side of the top of the insulated wire core conveying box. A wire feeding roller is rotatably connected between the first wire guide and the second wire guide and located on the top of the insulated wire core conveying box. One end of the wire feeding roller is fixedly connected to a third servo motor installed on the front side wall of the insulated wire core conveying box.

[0009] As a further optimization of the present invention, a transmission rod is slidably passed through both sides of the box body. A groove is opened through the top of the transmission rod. A rotating rod that moves through the groove is rotatably connected to the top position of the inner side wall of the box body. A transmission gear is fixedly installed at the bottom of the rotating rod. A rack that meshes with the transmission gear is fixedly installed at the rear bottom position of the transmission rod. An internally threaded tube is fixedly installed at the bottom of the transmission gear. A threaded rod is threadedly connected through the inner side wall of the internally threaded tube. A connecting seat is fixedly connected to the bottom of the threaded rod. A scraper is fixedly installed at the bottom of the connecting seat. Limiting recesses that slide with the scraper are fixedly installed on both sides of the inner side wall of the box body.

[0010] As a further optimization of the present invention, the discharge end of the forming box is provided with a residual material conveying assembly that cooperates with the scraper lifting transmission box, the side wall of the frame is provided with a glue leveling assembly that cooperates with the mold roller, and the other side wall of the frame is slidably connected with an insulated wire core conveying assembly that cooperates with the residual material conveying assembly and the dry sleeve forming assembly.

[0011] As a further optimization of the present invention, the transmission synchronization assembly includes a first servo motor fixedly installed inside the transmission cabinet, a mandrel fixedly installed at both ends of the mold roller, a synchronous pulley fixedly sleeved on one end of the rear mandrel and one end of the reciprocating lead screw, a synchronous belt sleeved between the two synchronous pulleys, the output end of the first servo motor fixedly connected to one end of the corresponding mandrel, and two symmetrically distributed limiting rotating rollers fixedly installed on the top of the molding box, and the other end of the mold roller rotatably connected to the top of the two limiting rotating rollers through the mandrel.

[0012] As a further optimization of the present invention, a limiting seat that is rotatably connected to the reciprocating lead screw is fixedly installed on the front side wall of the molding box, and a trigger plate that cooperates with the transmission rod is fixedly installed at the bottom of the limiting seat and at the rear position of the inner side wall of the molding box.

[0013] As a further optimization of the present invention, the glue leveling assembly includes two limiting plates fixedly installed on one side of the inner wall of the frame. A second lead screw is rotatably connected between the two limiting plates and located on the inner wall of the frame. A fourth servo motor is fixedly installed on the front wall of the frame and fixedly connected to one end of the second lead screw. A sliding seat is threaded on the outer wall of the second lead screw and slidably connected to the top of the two limiting plates. An electric push rod is fixedly installed on the top of the sliding seat. The output end of the electric push rod is connected to a leveling plate that cooperates with the mold roller.

[0014] As a further optimization of the present invention, a second servo motor is installed on the side wall of the frame, and a first lead screw is fixedly connected to the output end of the second servo motor. A second slide block is threadedly sleeved on the outer side wall of the first lead screw. A slide rod is fixedly installed below the first lead screw and on the inner side wall of the frame. The first slide block is slidably sleeved on the outer side wall of the slide rod. The insulated wire core conveying box is threadedly sleeved on the outer side wall of the first lead screw. The insulated wire core conveying box is slidably sleeved on the outer side wall of the two slide rods.

[0015] As a further optimization of the present invention, the discharge end of the molding box is provided with a receiving box, and a first glue feeding pipe is connected to the bottom of the other side wall of the receiving box. The other end of the first glue feeding pipe is connected to a glue feeding pump, and the output end of the glue feeding pump is connected to a second glue feeding pipe. The other end of the second glue feeding pipe is connected to the dipping tank.

[0016] As a further optimization of the present invention, a controller is fixedly installed on the side wall of the frame, and an air pump is fixedly installed on the top of the frame. The controller is electrically connected to the air pump, the second servo motor, the glue pump, the first servo motor, the electric push rod, the fourth servo motor, and the third servo motor.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. In the process of winding insulated wire cores into dry bushings, the electric push rod is vertically fixed on the top of the sliding seat, and its output end is directly connected to the uniform material plate. The distance between the uniform material plate and the surface of the mold roller can be adjusted in real time through the telescopic movement. This structure breaks through the limitation of the existing technology that "fixed distance cannot be adjusted". It can flexibly adapt to the uniform material requirements according to the changes in glue viscosity (such as reducing the distance when the glue becomes thinner due to temperature rise and increasing the distance when the glue becomes thicker due to temperature drop) or the diameter difference of mold rollers of different specifications. This avoids the accumulation of glue or excessive scraping due to improper distance, and ensures the uniformity of glue layer thickness.

[0019] 2. In the dry sleeve rolling process of this invention, a reciprocating screw is rotatably connected inside the forming box and threadedly engaged with the first slider of the scraper lifting transmission box. The reciprocating screw transmission can drive the first slider to automatically achieve reciprocating movement through the spiral groove design of the screw itself, without the need for additional reverse drive components. This simplifies the structure while ensuring the continuity and stability of the scraper's axial movement along the mold roller. The rack at the bottom of the transmission rod meshes with the transmission gear, and the bottom of the transmission gear is fixed with an internal threaded tube that is threadedly engaged with the threaded rod. This linkage structure converts the linear motion of the transmission rod into the rotational motion of the transmission gear. Then, through the threaded engagement of the internal threaded tube and the threaded rod, the scraper is lifted and lowered. When the transmission rod contacts the trigger plate, the trigger plate triggers the transmission rod. When the rear end of the transmission rod contacts the rear trigger plate, the scraper descends to scrape off the excess adhesive. When the front end of the transmission rod contacts the front trigger plate, the scraper rises, preventing the adhesive dripping inside the forming box from being scraped back into the forming box.

[0020] 3. In the process of recycling dripping adhesive, the receiving box is fixed to the front of the molding box, with its opening facing directly below the scraper. The closed structure prevents the scraped material from splashing during the fall, ensuring that the material is completely concentrated inside the box. At the same time, it avoids external impurities from mixing into the material, ensuring the purity of the recycled adhesive. This solves the problem of "splashing contamination and impurities affecting adhesive performance" in the prior art. The first adhesive delivery pipe connects the bottom of the receiving box to the adhesive delivery pump, and the second adhesive delivery pipe connects the adhesive delivery pump to the dipping tank, forming a complete conveying pipeline. The adhesive delivery pump provides stable conveying power, effectively avoiding pipeline blockage caused by high adhesive viscosity, ensuring that the residual adhesive is smoothly conveyed back to the dipping tank. The second adhesive delivery pipe is directly connected to the dipping tank, directly conveying the recycled residual adhesive to the raw material tank of the dipping process, forming a closed-loop circulation structure of "scraping-collection-transportation-reuse".

[0021] 4. In this invention, the controller starts the second servo motor, which drives the first lead screw to rotate. Since the second slide is threadedly engaged with the first lead screw, and the first slide slides on the slide rod, it guides the insulated wire core conveying box. The insulated wire core conveying box can move back and forth along the slide rod direction to achieve precise adjustment of the conveying position and adapt to the processing requirements of different specifications of insulated wire cores. The insulated wire cores are first separated by the insulated wire core separating conveying plate, then pass through the first wire organizer into the impregnation tank for impregnation, and then pass around the wire feeding roller and are guided by the second wire organizer to the dry sleeve forming assembly. The third servo motor drives the wire feeding roller to rotate under the control of the controller, providing power for the conveying of the insulated wire cores, realizing the orderly conveying and uniform impregnation of the insulated wire cores. The guiding effect of the separating plate and the wire organizer prevents the insulated wire cores from winding. The uniform rotation of the wire feeding roller ensures the stable conveying speed of the insulated wire cores, ensures consistent impregnation time, and improves the impregnation quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is the invention Figure 1 A partial top-down sectional view;

[0024] Figure 3 This is a schematic diagram of the transmission synchronization component of the present invention;

[0025] Figure 4 This is a schematic diagram of the scraper lifting transmission box of the present invention;

[0026] Figure 5 This is a bottom view of the scraper lifting transmission assembly of the present invention;

[0027] Figure 6 A schematic diagram of the shaft side structure of the scraper lifting transmission assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the conveying component of the present invention;

[0029] Figure 8 In this invention Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 9 This is a partial cross-sectional view of the scraper lifting box in this invention;

[0031] Figure 10 This is a structural diagram showing the cooperation between the molding box, the transmission mold roller, and the glue scraping assembly in this invention;

[0032] Figure 11 This is a schematic diagram of the adhesive homogenizing component in this invention.

[0033] In the diagram: 1. Frame; 2. Vacuum pump; 3. Controller; 4. Dry sleeve forming assembly; 401. Transmission cabinet; 402. Mandrel; 403. First servo motor; 404. Synchronous pulley; 405. Synchronous belt; 406. Mold roller; 407. Limiting rotating roller; 408. Forming box; 5. Glue scraping assembly; 501. Reciprocating lead screw; 502. Scraper lifting transmission box; 50201. First slider; 50202. Box body; 50203. Transmission rod; 50204. Slide groove; 50205. Rack; 50206. Transmission gear; 50207. Internally threaded pipe; 50208. Threaded rod; 50209. Connecting seat; 50210. Scraper; 50211. Limiting recess; 50212. Rotating rod; 5 03. Limiting seat; 504. Trigger plate; 6. Residual material conveying assembly; 601. Receiving box; 602. First glue delivery pipe; 603. Glue delivery pump; 604. Second glue delivery pipe; 7. Insulated wire core conveying assembly; 701. Insulated wire core conveying box; 702. Insulated wire core splitting conveying plate; 703. Second servo motor; 704. First slide; 705. Second slide; 706. Slide rod; 707. First lead screw; 708. Glue dipping tank; 709. Wire delivery roller; 710. First wire organizer; 711. Third servo motor; 712. Second wire organizer; 8. Glue evenly distributing assembly; 801. Second lead screw; 802. Limiting plate; 803. Slide seat; 804. Electric push rod; 805. Evenly distributing plate; 806. Fourth servo motor. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0035] Example 1: As Figure 1 As shown, a winding machine for processing dry bushings includes a frame 1. The frame 1 integrates a dry bushing forming assembly 4, an adhesive scraping assembly 5, a waste material conveying assembly 6, an insulated wire core conveying assembly 7, an adhesive leveling assembly 8, and an air extraction machine 2. The dry bushing forming assembly 4 is mainly used to wind the insulated wire core into a dry bushing. The frame 1 is equipped with a control module controller 3. The control module includes the controller 3, which enables the coordinated operation of the various components.

[0036] like Figure 1As shown, the vacuum pump 2 is fixed to the top of the frame 1 by bolts. Its function is to promptly discharge the harmful gases generated by the evaporation of glue during the processing. The high-speed rotation of the fan blades inside the vacuum pump 2 creates a negative pressure, which draws in the volatile gases near the molding box 408 and the insulated wire core conveying box 701 and discharges them to the designated treatment device, preventing operators from inhaling harmful gases and ensuring a safe working environment. Next, the controller 3 is fixed to the side wall of the frame 1 by a bracket. The controller 3 can preset the working parameters of each motor and actuator, such as the motor speed and the extension stroke of the electric push rod 804, to realize the automated control of the mechanism, reduce manual intervention, and improve processing accuracy and efficiency.

[0037] like Figure 1 , Figure 2 , Figure 7 As shown, after completing the electrical connection, inject an appropriate amount of insulating glue into the impregnation tank 708 in the insulating wire core conveying assembly 7. At the same time, check the sealing of the pipeline of the residual material conveying assembly 6 to ensure that the connection between the first glue delivery pipe 602, the glue delivery pump 603, and the second glue delivery pipe 604 is tight and there is no glue leakage. Finally, manually rotate each rotating component, such as the mold roller 406, the wire delivery roller 709, and the reciprocating screw 501, to ensure that they rotate flexibly and without jamming. At this point, the initial debugging of the mechanism is completed and it can enter the normal processing flow.

[0038] like Figure 1 , Figure 2 , Figure 7As shown, the insulated wire core conveying assembly 7 serves as the core of the material conveying mechanism. Its installation position is on the other side of the inner wall of the frame 1. The insulated wire core conveying box 701 is installed on the inner wall of the frame 1 through the sliding engagement of the first slide block 704 and the slide rod 706, and the threaded engagement of the second slide block 705 and the first lead screw 707. The impregnation tank 708 is located on the inner wall of the insulated wire core conveying box 701 and is used to store insulating adhesive. It provides a stable impregnation space for the insulated wire cores. The tank structure enables centralized storage of the adhesive, ensuring that the insulated wire cores are fully immersed in the adhesive and guaranteeing uniform impregnation. The second servo motor 703 is fixedly installed on the side wall of the frame 1, with its output end fixedly connected to the first lead screw 707. The second slide block is threaded onto the outer wall of the first lead screw 707. 705, the slide bar 706 is fixed to the inner side wall of the frame 1 and located below the first lead screw 707. The outer side wall is slidably fitted with the first slide seat 704. The side walls of the first slide seat 704 and the second slide seat 705 are both fixed to the insulated wire core conveying box 701. During operation, the controller 3 controls the second servo motor 703 to start, driving the first lead screw 707 to rotate. Since the second slide seat 705 is threadedly engaged with the first lead screw 707, and the first slide seat 704 slides on the slide bar 706 to guide the insulated wire core conveying box 701, the insulated wire core conveying box 701 can move back and forth along the slide bar 706 to achieve precise adjustment of the conveying position and adapt to the processing requirements of insulated wire cores of different specifications. The high-precision speed control of the servo motor and the linear displacement characteristics of the lead screw drive are utilized.

[0039] like Figure 1 , Figure 2 and Figure 7 As shown, the insulated wire core separating and conveying plate 702 is fixed to the other side of the top of the insulated wire core conveying box 701 to separate multiple insulated wire cores and prevent them from winding together; the first wire guide 710 is fixed to the inner wall of the impregnation tank 708, and the second wire guide 712 is fixed to one side of the top of the insulated wire core conveying box 701. The two work together to guide the insulated wire cores; the wire feeding roller 709 is rotatably connected to the top of the insulated wire core conveying box 701 and is located between the first wire guide 710 and the second wire guide 712. One end is fixedly connected to the third servo motor 711 installed on the front wall of the insulated wire core conveying box 701. During processing... The insulated wire cores are first separated by the insulated wire core separating and conveying plate 702, then pass through the first wire guide 710 into the impregnation tank 708 for impregnation. Afterwards, they pass around the wire feeding roller 709 and are guided and conveyed to the dry sleeve forming assembly 4 by the second wire guide 712. The third servo motor 711 drives the wire feeding roller 709 to rotate under the control of the controller 3, providing power for the conveying of the insulated wire cores, realizing the orderly conveying and uniform impregnation of the insulated wire cores. The guiding effect of the separating plate and the wire guide prevents the insulated wire cores from winding. The uniform rotation of the wire feeding roller 709 ensures the stable conveying speed of the insulated wire cores, ensures consistent impregnation time, and improves the impregnation quality.

[0040] like Figure 1, Figure 2 and Figure 3 As shown, the dry-type bushing forming assembly 4 is installed inside the frame 1 and is a key part of the insulated wire core forming process. The forming box 408 provides a closed space for the winding and forming of the insulated wire core. The transmission cabinet 401 is installed on the side wall of the forming box 408. The first servo motor 403 is fixedly installed inside the transmission cabinet 401. The output end is connected to the synchronous pulley 404 along with the inner side wall of the transmission cabinet 401. A synchronous belt 405 is sleeved between the two synchronous pulleys 404. The lower synchronous pulley 404 is rotatably connected inside the transmission cabinet 401 and fixedly connected to the reciprocating lead screw 501. The upper synchronous pulley 404 is fixed to one end of the mold roller 406. The mandrel 402 is fixedly installed. During operation, the controller 3 starts the first servo motor 403, which drives the synchronous pulley 404 at the output end to rotate. Through the synchronous belt 405, the lower synchronous pulley 404 is driven to rotate, thereby making the mold roller 406 and the reciprocating screw 501 rotate synchronously. This achieves synchronous action of the mold roller 406 and the glue scraping component 5, ensuring that the scraping of residual material and the winding forming rhythm are consistent. The synchronous belt 405 has the characteristics of accurate transmission ratio and smooth transmission, which can ensure that the speed of the mold roller 406 and the reciprocating screw 501 are synchronized, avoiding untimely or excessive scraping of residual material due to asynchronous action.

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 10 As shown, the other end of the mold roller 406 is rotatably connected to the top of two symmetrically distributed limiting rotating rollers 407 via a spindle 402. The limiting rotating rollers 407 are fixedly installed on the top of the forming box 408. The surface of the mold roller 406 is provided with a groove structure that matches the forming of the insulated wire core. The insulated wire core is wound on its surface and bonded with glue to form the core. The limiting rotating rollers 407 provide support and limit the mold roller 406, preventing the mold roller 406 from axially shifting during rotation, ensuring the forming accuracy of the insulated wire core and the rotational stability of the mold roller 406. The groove structure of the mold roller 406 determines the forming shape of the insulated wire core. The supporting effect of the limiting rotating rollers 407 reduces the radial runout of the mold roller 406 and improves the forming quality.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10As shown, a reciprocating lead screw 501 is rotatably connected inside the forming box 408. A first slider 50201 from the scraper lifting transmission box 502 is threaded onto the outer wall. The bottom of the first slider 50201 is fixed to the box body 50202. A transmission rod 50203 slides through the two side walls of the box body 50202. The top and bottom of the transmission rod 50203 are provided with grooves 50204. A rotating rod 50212, rotatably connected to the grooves 50204, is installed on the top of the inner side wall of the box body 50202. A transmission gear 50206 is fixed to the bottom of the rotating rod 50212. A rack 50205 that meshes with the transmission gear 50206 is fixed to the rear bottom of the transmission rod 50203. The rotating rod 50212 is used to limit the movement of the transmission gear 50206. To ensure that no deviation occurs during transmission, the bottom of the transmission gear 50206 is fixed with an internally threaded tube 50207, and the inner side wall thread passes through a threaded rod 50208. The bottom of the threaded rod 50208 is fixedly connected with a connecting seat 50209, and the bottom of the connecting seat 50209 is fixed with a scraper 50210. The inner side wall of the housing 50202 is fixed with limiting recesses 50211 that slide in cooperation with the scraper 50210. The two limiting recesses 50211 further limit the threaded rod 50208, the transmission gear 50206, the internally threaded tube 50207 and the rotating rod 50212, ensuring that the scraper 50210 can only slide and rise within the two limiting recesses 50211, thereby improving the stability of the scraping operation.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, when the reciprocating screw 501 rotates under the drive of the transmission synchronization assembly, the first slider 50201 reciprocates linearly along the reciprocating screw 501, causing the scraper lifting transmission box 502 to move as a whole. Simultaneously, when the transmission rod 50203 contacts the trigger plate 504 during its movement, it slides along the box body 50202. Through the meshing of the rack 50205 and the transmission gear 50206, the transmission gear 50206 rotates, thereby causing the internally threaded tube 50207 to rotate. Since the threaded rod 50208 is threadedly engaged with the internally threaded tube 50207, and the scraper 50201... Under the guidance of the limiting recess 50211, 210 cannot rotate. The threaded rod 50208 will drive the scraper 50210 to move up and down, thereby adjusting the fit between the scraper 50210 and the surface of the mold roller 406, and realizing the reciprocating movement and lifting adjustment of the scraper 50210 to ensure effective scraping of excess material of different thicknesses. The reciprocating screw 501 drives the reciprocating movement of the scraper 50210. The gear and rack 50205 drive and the screw nut drive work together to lift the scraper. The scraper position can be flexibly adjusted according to the thickness of the excess material on the surface of the mold roller 406 to improve the scraping effect.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, the limiting seat 503 is fixedly installed on the front side wall of the molding box 408 and rotatably connected to the reciprocating screw 501. It supports and limits the end of the reciprocating screw 501, preventing radial displacement during rotation and ensuring its rotational stability. The trigger plate 504 is fixed at the bottom of the limiting seat 503 and the rear side of the inner side wall of the molding box 408, respectively, and cooperates with the transmission rod 50203. When the transmission rod 50203 moves to the position of the trigger plate 504, the trigger plate 504 triggers the transmission rod 50203. When the rear end contacts the trigger plate 504 on the rear side (the end away from the discharge end of the molding box 408), the scraper 50210 descends. When the front end of the transmission rod 50203 contacts the trigger plate 504 on the front side (the discharge end of the molding box 408), the scraper 50210 rises, preventing the glue dripping into the molding box 408 from being scraped back into the molding box 408. The supporting effect of the limit seat 503 reduces the radial runout of the reciprocating screw 501. The trigger plate 504 achieves action triggering through mechanical contact, eliminating the need for additional sensors and reducing the cost of the mechanism and the probability of failure.

[0045] like Figure 1 and Figure 2 As shown, the excess material conveying assembly 6 is used to recover and re-transport the scraped excess glue to the dipping tank 708. The receiving box 601 is fixedly installed on the front side of the molding box 408, located below the scraper 50210, to receive the excess glue scraped by the scraper 50210. It achieves centralized collection of excess material, preventing glue from dripping and contaminating the mechanism. The box-type structure catches the falling excess material, ensuring that the excess material does not scatter. One end of the first glue delivery pipe 602 is connected to the bottom of the other side wall of the receiving box 601, and the other end is connected to the glue delivery pump 603. The glue delivery pump 603 outputs... The end is connected to the dipping tank 708 through the second glue delivery pipe 604. During operation, the controller 3 starts the glue delivery pump 603. The residual glue in the receiving box 601 is drawn into the glue delivery pump 603 through the first glue delivery pipe 602 under the suction of the glue delivery pump 603. After being pressurized by the glue delivery pump 603, it is delivered to the dipping tank 708 through the second glue delivery pipe 604, realizing the recycling of glue and reducing raw material waste. By using the fluid conveying action of the glue delivery pump 603, the recovered residual glue is transported back to the dipping tank 708, reducing glue loss and lowering production costs.

[0046] like Figure 1 , Figure 2 and Figure 11As shown, the glue spreading assembly 8 is used to evenly apply glue to the surface of the mold roller 406, ensuring uniform bonding between the insulated wire core and the glue. Two limiting plates 802 are fixedly installed on one side of the inner wall of the frame 1. The second lead screw 801 is rotatably connected between the two limiting plates 802 and located on the inner wall of the frame 1. The fourth servo motor 806 is fixed on the front wall of the frame 1 and its output end is fixedly connected to one end of the second lead screw 801. During operation, the controller 3 controls the fourth servo motor 806 to start, driving the second lead screw 801 to rotate, providing power and guidance for the movement of the sliding seat 803. The high-precision control of the servo motor ensures the stability of the rotation speed of the second lead screw 801. The limiting plates 802 guide the sliding seat 803 to prevent it from deviating during movement.

[0047] like Figure 1 , Figure 2 and Figure 11 As shown, the sliding seat 803 is threaded onto the outer wall of the second lead screw 801 and slidably connected to the top of the two limiting plates 802. The electric push rod 804 is fixed to the top of the sliding seat 803, and its output end is connected to the uniform plate 805 that cooperates with the mold roller 406. When the second lead screw 801 rotates, the sliding seat 803 reciprocates linearly along the top of the limiting plate 802. At the same time, the controller 3 controls the extension and retraction of the electric push rod 804 to adjust the distance between the uniform plate 805 and the surface of the mold roller 406. During the movement, the uniform plate 805 evenly applies the glue to the surface of the mold roller 406 to achieve uniform application of the glue and ensure the bonding quality of the insulated wire core. The reciprocating movement of the sliding seat 803 allows the uniform plate 805 to cover the entire surface of the mold roller 406.

[0048] It should be noted that, in operation, this type of rolling machine for processing dry tubing, after the mechanism is powered on, the operator presets parameters through the controller 3 on the side wall of the frame 1. These parameters include the rotation speed of the second servo motor 703 controlling the moving speed of the insulated wire core conveying box 701, the rotation speed of the third servo motor 711 controlling the conveying speed of the insulated wire core, the rotation speed of the first servo motor 403 controlling the synchronous rotation speed of the mold roller 406 and the reciprocating lead screw 501, the extension stroke of the electric push rod 804 controlling the distance between the material leveling plate 805 and the mold roller 406, and the conveying power of the glue pump 603. At the same time, the controller 3 starts the vacuum pump 2. The vacuum pump 2 forms a negative pressure through the high-speed rotation of the internal fan blades, sucking in and expelling the harmful gases generated by glue evaporation in the forming box 408 and the insulated wire core conveying box 701 area to the external treatment device, creating a safe working environment for subsequent processing.

[0049] Multiple insulated wire cores first pass through the insulated wire core separating conveyor plate 702 at the top of the insulated wire core conveyor box 701. The separating plate separates the insulated wire cores one by one through a preset slot structure to prevent the wires from tangling together. Then the insulated wire cores pass through the first wire guide 710 on the inner side wall of the impregnation tank 708. The first wire guide 710 uses rollers to initially guide the insulated wire cores to ensure that the wires enter the glue in the impregnation tank 708 vertically.

[0050] The impregnation tank 708 contains insulating adhesive. Under the action of gravity and the traction force of the subsequent wire feeding roller 709, the insulating wire core is completely immersed in the adhesive, so as to achieve uniform adhesive coating on the surface of the wire body and ensure that the insulating wire core can be evenly contacted with the adhesive during the impregnation process, avoiding local glue leakage or excessive glue coating.

[0051] After the insulating wire core has been impregnated with adhesive, it passes over the wire feeding roller 709. The wire feeding roller 709 rotates at a constant speed under the drive of the third servo motor 711, providing a continuous and stable traction force for the insulating wire core. Subsequently, the insulating wire core is guided again by the second wire guide 712 at the top of the insulating wire core conveying box 701, ensuring that the wire is conveyed in a straight line to the surface of the mold roller 406 of the dry sleeve forming assembly 4, laying the foundation for subsequent winding and forming.

[0052] Controller 3 starts the first servo motor 403. The output of the first servo motor 403 drives the upper synchronous pulley 404 in the transmission cabinet 401 to rotate. Through the transmission action of the synchronous belt 405, the lower synchronous pulley 404 rotates accordingly, thereby driving the reciprocating lead screw 501 fixedly connected to the lower synchronous pulley 404, and the spindle 402 connected to the upper synchronous pulley 404 to rotate synchronously with the mold roller 406. During the rotation, the groove structure on the surface of the mold roller 406 cooperates with the insulated wire core to gradually wind the insulated wire core into a pre-formed shape. The shape is set, and at the same time, the two limiting rotating rollers 407 at the top of the forming box 408 support the mold roller 406 to prevent the mold roller 406 from shifting due to radial force and ensure winding accuracy. The controller 3 drives the first lead screw 707 to rotate by controlling the forward and reverse rotation of the second servo motor 703. The second slide block 705, which is threaded with the first lead screw 707, drives the insulated wire core conveying box 701 to slide and guide the first slide block 704 on the slide rod 706 to move back and forth, so that the insulated wire core can be evenly wound onto the surface of the mold roller 406.

[0053] While the mold roller 406 rotates, the controller 3 starts the fourth servo motor 806. The fourth servo motor 806 drives the second lead screw 801 to rotate. The sliding seat 803, which is threaded with the second lead screw 801, makes a reciprocating linear motion along the top of the two limit plates 802. The electric push rod 804 on the top of the sliding seat 803 extends and retracts according to preset parameters, adjusting the distance between the uniform plate 805 and the surface of the mold roller 406. During the reciprocating movement, the uniform plate 805 evenly scrapes the excess glue on the surface of the mold roller 406, ensuring that the bonding thickness between the insulating wire core and the glue is consistent, and avoiding differences in the performance of the insulating wire core due to uneven glue distribution.

[0054] The first slider 50201, which is threadedly engaged with the reciprocating screw 501, belongs to the scraper lifting transmission box 502. Under the rotation of the reciprocating screw 501, the scraper lifting transmission box 502 is driven to move in a reciprocating linear motion along the reciprocating screw 501, thereby causing the scraper 50210 to move back and forth synchronously, and to scrape off the excess glue on the surface of the mold roller 406 that has not been cleaned by the uniform plate 805.

[0055] When the scraper lifting transmission box 502 moves to the vicinity of the limiting seat 503 on the front side of the forming box 408 (the discharge end of the forming box 408), the transmission rod 50203 contacts the trigger plate 504 at the bottom of the limiting seat 503. The trigger plate 504 generates a blocking force on the transmission rod 50203, causing the transmission rod 50203 to slide along the side wall of the box 50202. The rack 50205 at the bottom of the transmission rod 50203 meshes with the transmission gear 50206. When the transmission rod 50203 slides, it drives the transmission gear 50206 to rotate, thereby causing the internally threaded tube 50207, which is fixedly connected to the transmission gear 50206, to rotate synchronously. Because the threaded rod 50208 is threadedly engaged with the internally threaded tube 50207, and the scraper 50210 is in the limiting position... Under the guidance of the recessed block 50211, it cannot rotate. The threaded rod 50208 drives the scraper 50210 to move upward. When the scraper lifting transmission box 502 moves to the rear side of the inner wall of the molding box 408, the transmission rod 50203 contacts the trigger plate 504 on the rear side (the end away from the material outlet of the molding box 408), which in turn drives the scraper 50210 to move downward. Through this combination of "reciprocating movement + automatic lifting", the excess glue on the surface of the mold roller 406 is efficiently and non-destructively scraped. The excess glue scraped by the scraper 50210 is pushed into the receiving box 601 on the front side of the molding box 408. The receiving box 601, through its open design and inclined inner wall, ensures that the glue is completely concentrated at the bottom of the box, avoiding spillage and contamination of the mechanism.

[0056] The controller 3 starts the glue pump 603. The glue pump 603 draws excess glue from the bottom of the receiving box 601 through the first glue delivery pipe 602. After being pressurized by the glue pump 603, the glue is transported back to the impregnation tank 708 of the insulated wire core conveying box 701 through the second glue delivery pipe 604, realizing the recycling of glue. This design not only reduces the waste of raw materials and lowers production costs, but also avoids environmental pollution caused by the random discharge of surplus materials, realizing the greening of the processing process.

[0057] The above-described embodiments are merely examples of several implementations of the present invention, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A rolling machine for processing dry bushings, comprising a frame, characterized in that: The frame is equipped with a dry sleeve forming assembly, which includes a forming box installed inside the frame. A transmission cabinet is installed on the side wall of the forming box. A transmission synchronization assembly is installed inside the transmission cabinet. The output end of the transmission synchronization assembly is connected to a mold roller and an adhesive scraping assembly respectively. The adhesive scraping assembly includes a reciprocating screw rotatably connected inside the forming box. A scraper lifting transmission box is threaded on the outer side wall of the reciprocating screw. The scraper lifting transmission box includes a first slider threadedly sleeved with a reciprocating lead screw, a box body fixedly installed at the bottom of the first slider, and a scraper slidably connected through the bottom of the box body; An insulating wire core conveying assembly is provided on one side of the forming box. The insulating wire core conveying assembly includes an insulating wire core conveying box that is slidably connected to one side of the frame side wall. An insulating wire core splitting conveying plate is fixedly installed on the other side of the top of the insulating wire core conveying box. An impregnation tank is provided on the insulating wire core conveying box. A first wire guide is fixedly installed on the inner side wall of the impregnation tank. A second wire guide is fixedly installed on one side of the top of the insulating wire core conveying box. A wire feeding roller is rotatably connected between the first wire guide and the second wire guide and located at the top of the insulating wire core conveying box. A third servo motor installed on the front side wall of the insulating wire core conveying box is fixedly connected to one end of the wire feeding roller. A transmission rod slides through both sides of the box body. A groove is opened through the top of the transmission rod. A rotating rod that moves through the groove is rotatably connected to the top of the inner side wall of the box body. A transmission gear is fixedly installed at the bottom of the rotating rod. A rack that meshes with the transmission gear is fixedly installed at the bottom rear side of the transmission rod. An internally threaded tube is fixedly installed at the bottom of the transmission gear. A threaded rod is threaded through the inner side wall of the internally threaded tube. A connecting seat is fixedly connected to the bottom of the threaded rod. A scraper is fixedly installed at the bottom of the connecting seat. Limiting recesses that slide with the scraper are fixedly installed on both sides of the inner side wall of the box body. The transmission synchronization assembly includes a first servo motor fixedly installed inside the transmission cabinet. Both ends of the mold roller are fixedly installed with a mandrel. The rear mandrel and one end of the reciprocating lead screw are both fixedly fitted with a synchronous pulley. A synchronous belt is fitted between the two synchronous pulleys. The output end of the first servo motor is fixedly connected to one end of the corresponding mandrel. Two symmetrically distributed limiting rotating rollers are fixedly installed on the top of the molding box. The other end of the mold roller is rotatably connected to the top of the two limiting rotating rollers through the mandrel.

2. A rolling machine for processing dry bushings according to claim 1, characterized in that: The discharge end of the forming box is equipped with a residual material conveying assembly that cooperates with the scraper lifting transmission box. The side wall of the frame is equipped with a glue leveling assembly that cooperates with the mold roller. The other side wall of the frame is slidably connected to an insulated wire core conveying assembly that cooperates with the residual material conveying assembly and the dry sleeve forming assembly.

3. A rolling machine for processing dry bushings according to claim 2, characterized in that: A limiting seat that is rotatably connected to the reciprocating lead screw is fixedly installed on the front side wall of the molding box. A trigger plate that cooperates with the transmission rod is fixedly installed at the bottom of the limiting seat and at the rear position of the inner side wall of the molding box.

4. A rolling machine for processing dry bushings according to claim 2, characterized in that: The glue leveling assembly includes two limiting plates fixedly installed on one side of the inner wall of the frame. A second lead screw is rotatably connected between the two limiting plates and located on the inner wall of the frame. A fourth servo motor is fixedly installed on the front wall of the frame and fixedly connected to one end of the second lead screw. A sliding seat is threaded on the outer wall of the second lead screw and slidably connected to the top of the two limiting plates. An electric push rod is fixedly installed on the top of the sliding seat. The output end of the electric push rod is connected to a leveling plate that cooperates with the mold roller.

5. A rolling machine for processing dry bushings according to claim 3, characterized in that: A second servo motor is installed on the side wall of the frame. The output end of the second servo motor is fixedly connected to a first lead screw. A second slide block is threaded onto the outer side wall of the first lead screw. A slide rod is fixedly installed below the first lead screw and on the inner side wall of the frame. The outer side wall of the slide rod is slidably fitted with a first slide block. The insulated wire core conveying box is threaded onto the outer side wall of the first lead screw. The insulated wire core conveying box is slidably fitted onto the outer side walls of the two slide rods.

6. A rolling machine for processing dry bushings according to claim 5, characterized in that: The molding box is provided with a receiving box at the discharge end. A first glue feeding pipe is connected to the bottom of the other side wall of the receiving box. The other end of the first glue feeding pipe is connected to a glue feeding pump. The output end of the glue feeding pump is connected to a second glue feeding pipe. The other end of the second glue feeding pipe is connected to the dipping tank.

7. A rolling machine for processing dry bushings according to claim 6, characterized in that: A controller is fixedly installed on the side wall of the frame, and an air pump is fixedly installed on the top of the frame. The controller is electrically connected to the air pump, the second servo motor, the glue pump, the first servo motor, the electric push rod, the fourth servo motor, and the third servo motor.

Images