Large-span bed body bottom paper conveying heat preservation device

Abstract

The invention discloses a large-span lathe bed bottom paper conveying heat preservation device which comprises a split lathe bed, a driving roller, a glue pressing roller, an infrared heating mechanism and a paper feeding mechanism, the driving roller is installed on one side of the split lathe bed, and the glue pressing roller is installed on a ground foundation below the driving roller in a liftable mode. Two rear wallboards are fixedly arranged on the other side of the split type lathe bed, a cross beam is arranged between the two rear wallboards, the split type lathe bed comprises two lathe bed bases and a middle lathe bed arranged between the two lathe bed bases in a suspended mode, and an installation channel for installing a paper feeding mechanism is formed in the bottom of the middle lathe bed. The paper feeding mechanism is installed on a ground foundation below the middle lathe bed, and the infrared heating mechanism is located above the paper feeding mechanism. The structure design is reasonable, the design of the split type lathe bed greatly reduces the processing difficulty and reduces the cost, better rigidity and stability are achieved, the rubber compression roller and the infrared heating mechanism are additionally arranged at the bottom of the split type lathe bed, and the problems of stable conveying, heat preservation and moisture regain prevention of large-width insulation paper are solved.

Description

Technical Field

[0001] This invention belongs to the field of transformer high-voltage insulation technology, specifically relating to a paper conveying and insulation device at the bottom of a large-span bed. Background Technology

[0002] In the high-voltage insulation process of transformers, the high-voltage bushing capacitor core is the core component of the transformer's high-voltage insulation system. Its winding quality directly determines the transformer's high-voltage insulation performance, operational stability, and service life. Flat paper and crepe paper are key insulating materials for winding the high-voltage bushing capacitor core. The conveying process during winding is a crucial step in the capacitor core winding process. This step must simultaneously ensure the stability of the insulating paper during conveying and its own dryness, avoiding conveying defects such as offset, wrinkles, and tears, and preventing the insulating paper from softening and sticking due to moisture. This ensures the winding accuracy, insulation performance, and finished product qualification rate of the capacitor core. Due to tension control and paper cutting and splicing requirements, the capacitor core winding bed typically has a large span and a bottom-feeding layout. To ensure the stability of paper conveying during the winding process, high rigidity is required for the large-span bed itself.

[0003] If traditional processes are used, it is difficult to control the moisture content within a safe range, making it impossible to guarantee the dryness and stability of the paper before it enters the winding process, thus failing to meet the insulation reliability requirements of ultra-high voltage equipment. Therefore, a paper conveying and insulation device with a large span at the bottom of the bed is needed to solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a paper conveying and insulation device for a large span bed frame. The device has a reasonable structural design. By suspending the middle bed frame between two bed frames, a split bed frame with an installation channel at the bottom is formed. Compared with an integral bed frame, the split bed frame greatly reduces the processing difficulty and lowers the cost. Compared with a bed frame with side wall panels, the split bed frame has better rigidity and stability. At the same time, the addition of a rubber pressure roller and an infrared heating mechanism at the bottom of the split bed frame solves the problems of stable conveying and insulation of large-width insulating paper and preventing moisture return.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a paper conveying and heat preservation device for a large span bed bottom, comprising a split bed, a drive roller, a rubber pressure roller, an infrared heating mechanism, and a paper feeding mechanism. The drive roller is installed on one side of the split bed, and the rubber pressure roller is installed on the ground foundation below the drive roller in a height-adjustable manner. Two rear wall panels are fixedly installed on the other side of the split bed, and a crossbeam is provided between the two rear wall panels. The split bed includes two bed seats and a middle bed suspended between the two bed seats. The bottom of the middle bed forms an installation channel for the paper feeding mechanism to be installed. The paper feeding mechanism is installed on the ground foundation below the middle bed, and the infrared heating mechanism is located above the paper feeding mechanism. The infrared heating mechanism includes a first infrared heating lamp assembly installed on the lower surface of the split bed and a second infrared heating tube assembly installed below the crossbeam. The bottom of the middle bed is fitted with a first insulation board and a reflector in a pull-out manner from top to bottom. The first infrared heating lamp assembly is installed at the bottom of the reflector. The bottom of the crossbeam is fitted with a second insulation board and a second reflector in a pull-out manner. The second infrared heating tube assembly is installed at the bottom of the second reflector.

[0006] The above-mentioned large-span bed bottom paper conveying and insulation device has an L-shaped structure with a horizontal extension at the bottom, a frame structure inside the middle bed, and the two ends of the middle bed are respectively mounted on the horizontal extensions of the two bed seats. The bed seats and the middle bed are connected by bolts. Multiple channel steel frames are fixedly installed on the middle bed, and the top of the crossbeam is fixedly connected to the bottom of the multiple channel steel frames. The multiple channel steel frames are located between two rear wall panels.

[0007] The aforementioned large-span bed bottom paper conveying and heat preservation device comprises a drive roller consisting of multiple drive roller segments coaxially connected, and a glue-pressing roller consisting of multiple glue-coated roller segments coaxially connected. The connection areas of the drive roller and the glue-pressing roller are staggered.

[0008] The above-mentioned large-span bed bottom paper conveying and heat preservation device includes a drive roller comprising a first drive roller segment and a second drive roller segment, which are coaxially connected by a connecting shaft. Both the first drive roller segment and the second drive roller segment transmit power through the first connecting shaft. The split-type bed is provided with two side bearing seats and a first intermediate bearing seat on one side. The far ends of the first drive roller section and the second drive roller section are respectively connected to the two side bearing seats through bearings. The connecting shaft is connected to the first intermediate bearing seat through bearings.

[0009] The above-mentioned large-span bed bottom paper conveying and heat preservation device has multiple auxiliary supports between the two side bearing seats and the first intermediate bearing seat. The first auxiliary support includes a first auxiliary support seat disposed on one side of the split bed and two first auxiliary support rollers rotatably mounted on the first auxiliary support seat. The axial direction of the first auxiliary support roller is parallel to the axial direction of the drive roller, and the first auxiliary support roller is in rolling contact with the drive roller.

[0010] The above-mentioned large-span bed bottom paper conveying and heat preservation device has a first drive motor for driving the drive roller on one side of the split bed. The output shaft of the first drive motor is connected to the drive roller by a first planetary reducer. The output shaft of the first planetary reducer is connected to one end of the drive roller by a coupling.

[0011] The aforementioned large-span bed bottom paper conveying and insulation device includes a glue roller base fixed on the ground foundation. Both ends of the glue roller are respectively mounted on the glue roller base via a vertical sliding assembly. The vertical sliding assembly includes a vertical guide rail fixed on the glue roller base and a slide seat slidably mounted on the vertical guide rail. Both ends of the glue roller are respectively provided with a seated bearing, and the seated bearing is fixed on the slide seat.

[0012] The aforementioned large-span bed bottom paper conveying and heat preservation device includes a glue-coated roller comprising a first glue-coated roller and a second glue-coated roller. The first glue-coated roller and the second glue-coated roller are coaxially connected via a second connecting shaft. The glue-coated roller base is provided with two lifting cylinders for driving the two slides to rise and fall. The piston end of the lifting cylinder is fixedly connected to the corresponding slide via a connecting rod. The bottom of the first glue-coated roller and the second glue-coated roller are each supported by multiple support cylinders. The bottom of the second connecting shaft is also supported by a support cylinder. The multiple support cylinders are all located between the two lifting cylinders. The cylinder body of the support cylinder is fixed on the glue-coated roller base. When the support cylinder is supported at the bottom of the first or second rubber-coated roller, the piston end of the support cylinder is provided with a second auxiliary support. When the support cylinder is supported at the bottom of the second connecting shaft, the piston end of the support cylinder is provided with a second intermediate bearing seat for mounting the second connecting shaft.

[0013] The above-mentioned large-span bed bottom paper conveying heat preservation device includes a first infrared heating lamp assembly comprising multiple first infrared heating lamps arranged in two rows at the bottom of the split bed. The first infrared heating lamps are installed at the bottom of the reflector by tube clamps. The first infrared heating lamps are parallel to the upper surface of the paper feeding mechanism. The first infrared heating lamps are arranged at an acute angle to the paper feeding direction of the paper feeding mechanism. Multiple temperature sensors are also installed below the reflector; The second infrared heating lamp assembly includes multiple second infrared heating lamps arranged in a single row at the bottom of the second reflector. The second infrared heating lamps have the same structure as the first infrared heating lamps and are arranged parallel to each other.

[0014] The above-mentioned large-span bed bottom paper conveying and heat preservation device includes a paper feeding mechanism comprising a paper feeding frame and a conveyor chain for conveying insulating paper. The paper ends of the insulating paper are pressed onto the conveyor chain by magnets. A drive shaft and a driven shaft are rotatably mounted on both sides of the paper feeding frame. A drive sprocket is mounted on the drive shaft, and a driven sprocket is mounted on the driven shaft. Both the drive sprocket and the driven sprocket mesh with the conveyor chain. A second drive motor is provided on one side of the paper feeder frame, and a second planetary reducer is connected between the output shaft of the second drive motor and the drive shaft.

[0015] Compared with the prior art, the present invention has the following advantages: 1. This invention utilizes a suspended assembly structure between two symmetrically arranged bed seats to create a central bed, thereby forming a modular bed with a pre-reserved through-type installation channel at the bottom. This modular bed design not only provides ample operating space for the overall installation, debugging, and maintenance of the paper feeding mechanism, facilitating precise alignment and assembly of its components, but also effectively adapts to the needs of wide-width capacitor core winding operations. It enables stable, continuous, and precise feeding of both flat and corrugated insulating paper, ensuring the smooth operation of wide-width capacitor core winding from the perspective of the equipment's fundamental structure.

[0016] 2. The split-type bed design in this invention successfully fills the technological gap in the field of large-scale split-type bed structures for 10-meter-class capacitor core winding equipment in China, demonstrating significant technological innovation and practicality. Compared to the integral bed structure in existing technologies, this split-type bed eliminates the need for ultra-large-scale integral processing, significantly reducing the processing difficulty, processing cycle, and processing cost. It also effectively avoids the technical challenges of processing deformation and difficulty in controlling precision that can easily occur with integral beds due to their excessive size. Compared to existing bed structures with side wall panels, this split-type bed, through its integrated suspended design of the bed base and the middle bed, significantly improves the overall structural rigidity and operational stability of the bed. It can effectively resist the vibration and impact generated during winding operations, avoiding the adverse effects of bed deformation on paper feeding accuracy and winding accuracy, and ensuring long-term stable operation of the equipment.

[0017] 3. This invention incorporates an infrared heating mechanism positioned above the paper feeding mechanism's conveying path. This mechanism utilizes radiant heating to provide uniform and efficient heat preservation for the insulating paper, including both flat and crepe paper, during the conveying process, ensuring it remains within a preset drying temperature range. This design effectively suppresses moisture regain in the insulating paper during conveying and winding due to environmental humidity, preventing softening, sticking, and reduced toughness caused by moisture. It fundamentally guarantees the dimensional stability and surface flatness of the insulating paper during conveying, providing reliable assurance for the subsequent winding accuracy of the capacitor core, the density of the insulation layer, and the insulation performance of the finished capacitor. This significantly improves the finished product qualification rate of the capacitor core and reduces the product scrap rate caused by insulating paper quality issues.

[0018] 4. This invention features a pressure roller positioned below the drive roller, with the drive roller and pressure roller arranged in a corresponding clamping configuration. The drive roller is connected to a first drive motor and a first planetary reducer, providing stable driving force. The pressure roller employs a non-powered floating installation structure, with a support cylinder and a lifting cylinder at its bottom. Its surface is made of highly elastic, wear-resistant rubber. During operation, the pressure roller, under elastic preload, tightly adheres to the surface of the drive roller, forming a stable clamping gap. As the insulating paper passes through this gap, the friction of the drive roller propels the paper forward, while the pressure roller applies uniform clamping pressure. This structural design enables smooth clamping and traction of the insulating paper, effectively controlling tension fluctuations during transport and preventing transport defects such as offset, wrinkles, tears, and tensile deformation. It ensures the insulating paper is accurately transported to the winding mechanism according to the preset path and tension requirements, further improving the winding quality and consistency of the capacitor core.

[0019] In summary, the present invention has a reasonable structural design. By suspending the middle bed between the two bed seats, a split bed with an installation channel at the bottom is formed. Compared with the integral bed, the split bed greatly reduces the processing difficulty and lowers the cost. Compared with the side wall panel type bed, the split bed has better rigidity and stability. At the same time, the addition of a rubber pressure roller and an infrared heating mechanism at the bottom of the split bed solves the problems of stable conveying of wide-width insulating paper and heat preservation and moisture prevention.

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram showing the positional relationship between the drive roller, the pressure roller, the infrared heating mechanism, and the paper feeding mechanism of the present invention and the split-type bed.

[0023] Figure 3 This is a schematic diagram of the installation structure of the crossbeam and the split bed of the present invention.

[0024] Figure 4 This is a schematic diagram of the connection structure between the drive roller and the first drive motor of the present invention.

[0025] Figure 5 This is a schematic diagram of the connection structure between the first drive roller segment and the second drive roller segment of the present invention.

[0026] Figure 6 This is a schematic diagram of the connection structure between the first auxiliary support base and the first auxiliary support roller of the present invention.

[0027] Figure 7 This is a schematic diagram of the installation structure of the rubber roller and the rubber roller base of the present invention.

[0028] Figure 8 for Figure 7 Enlarged view of point A.

[0029] Figure 9 for Figure 7 Enlarged view of point B.

[0030] Figure 10 This is a schematic diagram of the connection structure between the second auxiliary support base and the support cylinder of the present invention.

[0031] Figure 11 This is a schematic diagram of the connection structure of the first insulation board, reflector and first infrared heating lamp tube of the present invention.

[0032] Figure 12 This is a schematic diagram of the paper feeding mechanism of the present invention.

[0033] Explanation of reference numerals in the attached figures: 1. Split-type bed; 101. Bed base; 102. Middle bed; 2. Drive roller; 201. First drive roller section; 202. Second drive roller section; 203. First connecting shaft; 3. Rubber roller; 301. First rubber-coated roller; 302. Second rubber-coated roller; 303. Second connecting shaft; 4. Rear wall panel; 5. Crossbeam; 6. Channel steel frame; 7. First insulation board; 8. Reflector; 9. Heat insulation connecting plate; 10. Fixed beam; 11. Second insulation board; 13. Side bearing seat; 14. First intermediate bearing seat; 15. First auxiliary support seat; 16. First auxiliary support roller; 17. First drive roller. 18. Motor; 19. First planetary reducer; 20. Coupling; 21. Glue roller base; 22. Vertical guide rail seat; 23. Slide seat; 24. Bearing with seat; 25. Lifting cylinder; 26. Connecting rod; 27. Support cylinder; 28. Second auxiliary support seat; 29. ​​Second auxiliary support roller; 30. First infrared heating lamp; 31. Pipe clamp; 32. Temperature sensor; 33. Second infrared heating lamp; 34. Paper feeder frame; 35. Conveyor chain; 36. Driven shaft; 37. Driven sprocket; 38. Driven sprocket; 39. Second drive motor; 40. Second planetary reducer. Detailed Implementation

[0034] like Figures 1 to 12 As shown, the present invention includes a split bed 1, a drive roller 2, a rubber pressure roller 3, an infrared heating mechanism, and a paper feeding mechanism. The drive roller 2 is installed on one side of the split bed 1, and the rubber pressure roller 3 is installed on the ground foundation below the drive roller 2 in a height-adjustable manner. Two rear wall panels 4 are fixedly installed on the other side of the split bed 1, and a crossbeam 5 is provided between the two rear wall panels 4. The split bed 1 includes two bed seats 101 and a middle bed 102 suspended between the two bed seats 101. The bottom of the middle bed 102 forms an installation channel for the paper feeding mechanism to be installed. The paper feeding mechanism is installed on the ground foundation below the middle bed 102. The infrared heating mechanism is located above the paper feeding mechanism. The infrared heating mechanism includes a first infrared heating lamp assembly installed on the lower surface of the split bed 1 and a second infrared heating tube assembly installed below the crossbeam 5. The bottom of the middle bed 102 is fitted with a first insulation board 7 and a reflector 8 in a pull-out manner from top to bottom. The first infrared heating lamp assembly is installed at the bottom of the reflector 8. The bottom of the crossbeam 5 is fitted with a second insulation board 11 in a pull-out manner. The second infrared heating tube assembly is installed at the bottom of the second insulation board 11.

[0035] In actual use, a suspended assembly structure is used to set up the middle bed 102 between two symmetrically arranged bed seats 101, thus forming a split bed 1 with a through-type installation channel reserved at the bottom. The structural design of this split bed 1 not only provides ample operating space for the overall installation, debugging, and maintenance of the paper feeding mechanism, facilitating the precise alignment and assembly of various components of the paper feeding mechanism, but also effectively adapts to the needs of large-width capacitor core winding operations, realizing the stable, continuous, and precise feeding of flat insulating paper and corrugated insulating paper, and ensuring the smooth operation of large-width capacitor core winding operations from the perspective of the equipment's basic structure.

[0036] It is worth emphasizing that the design of this split-type bed 1 successfully fills the technological gap in the field of large split-type bed structures for 10-meter-class capacitor core winding equipment in China, demonstrating significant technological innovation and practicality. Compared with the existing integral bed structure, this split-type bed 1 does not require ultra-large-scale integral processing, which can significantly reduce the processing difficulty, processing cycle, and processing cost of the bed structure. At the same time, it effectively avoids the technical problems of processing deformation and difficulty in controlling precision that are prone to occur due to the excessive size of the integral bed. Compared with the existing bed structure with side wall panels, this split-type bed 1, through the integrated suspended design of the bed base 101 and the middle bed 102, greatly improves the overall structural rigidity and operational stability of the bed. It can effectively resist the vibration and impact generated during the winding operation, avoid the adverse effects of bed deformation on paper feeding accuracy and winding accuracy, and ensure the long-term stable operation of the equipment.

[0037] It should be noted that by installing an infrared heating mechanism above the paper feeding path, which uses radiant heating, the insulating paper, including flat paper and crepe paper, can be uniformly and efficiently kept warm during the feeding process, ensuring that the insulating paper is always maintained within the preset drying temperature range. This design effectively suppresses the re-dampening phenomenon of insulating paper due to environmental humidity during feeding and winding, thereby preventing problems such as softening, sticking, and decreased toughness caused by moisture. This fundamentally ensures the dimensional stability and surface flatness of the insulating paper during feeding, providing a reliable guarantee for the winding accuracy of the subsequent capacitor core, the density of the insulation layer, and the insulation performance of the finished capacitor. This significantly improves the finished product qualification rate of the capacitor core and reduces the product scrap rate caused by insulating paper quality problems.

[0038] In addition, a pressure roller 3 is correspondingly installed below the drive roller 2. The drive roller 2 and the pressure roller 3 are arranged in a corresponding clamping manner. The drive roller 2 is connected to the first drive motor 17 and the first planetary reducer 18, which can provide stable driving force. The pressure roller 3 adopts a non-powered floating installation structure, that is, it is supported by a support cylinder 26 and a lifting cylinder 24 at its bottom. Its roller surface is made of high elastic wear-resistant rubber. During operation, the pressure roller 3 is tightly attached to the surface of the drive roller 2 under the action of elastic pre-tightening force, forming a stable clamping gap. When the insulating paper passes through this clamping gap, the friction of the drive roller 2 drives the insulating paper forward, while the pressure roller 3 applies uniform clamping pressure to the insulating paper. This structural design can realize the smooth clamping and traction of the insulating paper, effectively control the tension fluctuation of the insulating paper during the conveying process, avoid conveying defects such as offset, wrinkles, tears, and tensile deformation of the insulating paper, and ensure that the insulating paper can be accurately conveyed to the winding mechanism according to the preset path and tension requirements, further improving the winding quality and consistency of the capacitor core.

[0039] In actual use, a reflector 8 is installed at the bottom of the first insulation board 7. The reflector 8 can reflect infrared radiation, improving the heating efficiency of the paper. The first insulation board 7 and the second insulation board 11 are made of stainless steel wrapped with insulation cotton to prevent heat transfer to the bed frame and avoid affecting other parts of the bed frame. Due to limited space under the middle bed frame, there is a certain gap between the reflector 8 and the first insulation board 7. The reflector 8 has several holes to allow water vapor to rise and pass through. The gap is used to temporarily store water vapor and facilitate its discharge. Only the second insulation board 11 is installed under the crossbeam 5. The outer shell of the second insulation board 11 is made of stainless steel, which can also reflect infrared radiation. There is ample space under the crossbeam 5 for water vapor to discharge.

[0040] In actual use, there are multiple first insulation boards 7 and multiple reflector boards 8. Multiple first insulation boards 7 are spliced ​​on the same plane, and multiple reflector boards 8 are spliced ​​on the same plane. There are also multiple second insulation boards 11. By installing the first insulation boards 7, the second insulation boards 11 and the reflector boards 8 in a pull-out manner, it is easy to pull out the first insulation boards 7, the second insulation boards 11 and the reflector boards 8 directly when replacing or repairing the infrared heating mechanism, which can effectively improve the maintenance efficiency of the infrared heating mechanism.

[0041] In specific implementation, multiple heat insulation connecting plates 9 are symmetrically fixed at the bottom of both sides of the middle bed 102. A fixed beam 10 with a groove is connected between two symmetrically arranged heat insulation connecting plates 9. The first heat insulation plate 7 and the reflector plate 8 are slidably arranged between two adjacent fixed beams 10. The second heat insulation plate 11 is installed at the bottom of the crossbeam 5 in the same way.

[0042] In practice, the distance between the two rear wall panels 4 is greater than the width of the suspended part at the bottom of the split bed 1, so that the setting of the rear wall panels 4 does not affect the layout of the paper feeding mechanism.

[0043] In practice, the insulating paper conveyed by the paper feeding mechanism is either crepe paper or flat paper. The insulating paper is made up of 1 to 5 sheets of crepe paper or flat paper spliced ​​together in the width direction, and the maximum splicing width of the insulating paper is 10 meters.

[0044] In practice, an L-shaped connector is fixedly installed on each of the bottom sides of the crossbeam 5 to facilitate the installation of the second insulation board 11.

[0045] like Figure 1 and Figure 3 As shown, in this embodiment, the bed base 101 is an L-shaped structure with a horizontal extension at the bottom, the middle bed 102 has an internal frame structure, and the two ends of the middle bed 102 are respectively mounted on the horizontal extensions of the two bed bases 101. The bed bases 101 and the middle bed 102 are connected by bolts. Multiple channel steel frames 6 are fixedly installed on the middle bed 102. The top of the crossbeam 5 is fixedly connected to the bottom of the multiple channel steel frames 6. The multiple channel steel frames 6 are all located between the two rear wall panels 4.

[0046] In actual use, the channel steel frame 6 adopts a right-angled triangular structure. The vertical side of the channel steel frame 6 is fixed to one side of the middle bed 102, the bottom horizontal side of the channel steel frame 6 is fixed to the crossbeam 5, and the two ends of the crossbeam 5 are respectively vertically fixed to the two rear wall panels 4.

[0047] It should be noted that by making the interior of the middle bed 102 a frame structure, it is easier to reduce the weight of the structure itself; the exterior of the middle bed 102 is enclosed by multiple panels, some of which are removable.

[0048] In this embodiment, the drive roller 2 is composed of multiple drive roller segments coaxially connected, and the glue pressing roller 3 is composed of multiple glue-coated roller segments coaxially connected. The connection areas of the drive roller 2 and the glue pressing roller 3 are staggered.

[0049] In actual use, by connecting multiple drive roller segments coaxially to form drive roller 2, and connecting multiple glue-coated roller segments coaxially to form glue-pressing roller 3, drive roller 2 and glue-pressing roller 3 can be adapted to the traction of wide-width insulating paper. At the same time, by staggering the connection areas of drive roller 2 and glue-pressing roller 3, the surface quality of insulating paper can be effectively improved.

[0050] In practice, the drive roller 2 is laid out along the width of the insulating paper.

[0051] like Figures 4 to 6As shown, in this embodiment, the drive roller 2 includes a first drive roller segment 201 and a second drive roller segment 202. The first drive roller segment 201 and the second drive roller segment 202 are coaxially connected by a first connecting shaft 203. Both the first drive roller segment 201 and the second drive roller segment 202 transmit power through the first connecting shaft 203. Two side bearing seats 13 and a first intermediate bearing seat 14 are provided on one side of the split bed 1. The far ends of the first drive roller section 201 and the second drive roller section 202 are respectively connected to the two side bearing seats 13 through bearings. The first connecting shaft 203 is connected to the first intermediate bearing seat 14 through a bearing.

[0052] In actual use, the drive roller 2 adopts a segmented structure design, specifically including a first drive roller segment 201, a second drive roller segment 202, and a first connecting shaft 203. The first drive roller segment 201 and the second drive roller segment 202 have the same length. The two ends of the first connecting shaft 203 extend into the interior of the first drive roller segment 201 and the second drive roller segment 202 respectively and are connected by keys. This segmented structure can further reduce the processing difficulty of the drive roller 2 and facilitate subsequent maintenance and replacement. At the same time, the key connection ensures the stability and synchronization of the transmission and avoids relative rotation of the segmented rollers, which would affect the paper feeding accuracy.

[0053] In addition, the drive roller 2 adopts a segmented structure design, which can greatly increase the length of the drive roller 2 and its processing difficulty, thereby effectively adapting to the needs of large-width capacitor core winding operations.

[0054] In this embodiment, multiple auxiliary supports are provided between the two side bearing seats 13 and the first intermediate bearing seat 14. The first auxiliary support includes a first auxiliary support seat 15 disposed on one side of the split bed 1 and two first auxiliary support rollers 16 rotatably mounted on the first auxiliary support seat 15. The axial direction of the first auxiliary support rollers 16 is parallel to the axial direction of the drive roller 2, and the first auxiliary support rollers 16 are in rolling contact with the drive roller 2.

[0055] In actual use, the first auxiliary support roller 16 is rotatably mounted on the first auxiliary support seat 15, and the first auxiliary support seat 15 is fixedly mounted on the split bed 1. An arc-shaped groove is provided on the side of the first auxiliary support seat 15 near the drive roller 2. The two first auxiliary support rollers 16 are respectively mounted on the two ends of the arc-shaped groove. By installing the first auxiliary support seat 15 on the split bed 1, the drive roller 2 can be supported by the two first auxiliary support rollers 16 on the first auxiliary support seat 15, thereby preventing the first auxiliary support roller 16 from deforming and ensuring the straightness of the drive roller 2.

[0056] In practice, the first auxiliary support roller 16 makes rolling contact with the first drive roller section 201 and the second drive roller section 202 of the drive roller 2.

[0057] In this embodiment, a first drive motor 17 for driving the drive roller 2 is provided on one side of the split bed 1. A first planetary reducer 18 is connected between the output shaft of the first drive motor 17 and the drive roller 2. The output shaft of the first planetary reducer 18 is connected to one end of the drive roller 2 through a coupling 19.

[0058] In actual use, the first drive motor 17 is connected to the first planetary reducer 18, and the power is transmitted to the drive roller 2 through the coupling 19.

[0059] like Figures 7 to 10 As shown, in this embodiment, a rubber roller base 20 is fixed on the ground foundation. The two ends of the rubber roller 3 are respectively mounted on the rubber roller base 20 through a vertical sliding assembly. The vertical sliding assembly includes a vertical guide rail seat 21 fixed on the rubber roller base 20 and a slide seat 22 slidably assembled on the vertical guide rail seat 21. A seated bearing 23 is provided at each end of the rubber roller 3, and the seated bearing 23 is fixed on the slide seat 22.

[0060] In this embodiment, the rubber pressure roller 3 includes a first rubber-coated roller 301 and a second rubber-coated roller 302. The first rubber-coated roller 301 and the second rubber-coated roller 302 are coaxially connected by a second connecting shaft 303. The rubber pressure roller base 20 is provided with two lifting cylinders 24, which are respectively used to drive the two slides 22 to rise and fall. The piston end of the lifting cylinder 24 is fixedly connected to the corresponding slide 22 through a connecting rod 25. The bottom of the first rubber-coated roller 301 and the second rubber-coated roller 302 are each supported by multiple support cylinders 26. The bottom of the second connecting shaft 303 is also supported by a support cylinder 26. The multiple support cylinders 26 are all located between the two lifting cylinders 24. The cylinder body of the support cylinder 26 is fixed on the rubber pressure roller base 20. When the support cylinder 26 is supported at the bottom of the first rubber-coated roller 301 or the second rubber-coated roller 302, the piston end of the support cylinder 26 is provided with a second auxiliary support. When the support cylinder 26 is supported at the bottom of the second connecting shaft 303, the piston end of the support cylinder 26 is provided with a second intermediate bearing seat for the second connecting shaft 303 to be installed.

[0061] In actual use, the lengths of the first rubber-coated roller 301 and the second rubber-coated roller 302 are different, which causes the connection area of ​​the drive roller 2 and the connection area of ​​the glue-pressing roller 3 to be misaligned, which facilitates the improvement of the surface quality of the insulating paper.

[0062] In specific implementation, two lifting cylinders 24 are symmetrically arranged at both ends of the pressure roller 3. The lifting cylinders 24 drive the slide block 22 to slide vertically along the vertical guide rail 21, thereby causing the pressure roller 3 to rise and fall with the two bearings 23. To solve the technical problem that existing pressure rollers 3 are prone to downward deformation in the middle of the roller body due to their own weight and pressing load during long-term operation and pressing, resulting in bending of the overall axis of the pressure roller 3, and thus uneven pressing pressure distribution on the surface of the insulating paper, with a large pressure difference between the edge and the middle, affecting the pressing quality of the insulating paper, this structure adds an auxiliary support mechanism in the middle of the pressure roller 3. This auxiliary support mechanism consists of a support cylinder 26 and a second auxiliary support. The middle of the pressure roller 3 is lifted and lowered by the support cylinder 26 driving the second auxiliary support. The second auxiliary support can effectively suppress the deformation of the pressure roller 3 and make the pressure distribution on the insulating paper more uniform.

[0063] In specific implementation, the second auxiliary support includes a second auxiliary support base 27 and two second auxiliary support rollers 28 symmetrically mounted on the second auxiliary support base 27. The second auxiliary support rollers 28 are rotatably mounted on the second auxiliary support base 27. like Figure 2 , Figure 3 and Figure 11 As shown, in this embodiment, the first infrared heating lamp assembly includes a plurality of first infrared heating lamps 29 arranged in two rows at the bottom of the split bed 1. The first infrared heating lamps 29 are installed at the bottom of the reflector 8 by means of a tube clamp 30. The first infrared heating lamps 29 are parallel to the upper surface of the paper feeding mechanism. The first infrared heating lamps 29 are arranged at an acute angle to the paper feeding direction of the paper feeding mechanism. Multiple temperature sensors 31 are also installed below the reflector 8; The second infrared heating lamp assembly includes a plurality of second infrared heating lamps 32 arranged in a single row at the bottom of the second insulation plate 11. The second infrared heating lamps 32 have the same structure as the first infrared heating lamps 29 and are arranged in parallel to each other.

[0064] In actual use, the multiple first infrared heating lamps 29 in each row are arranged along the width direction of the paper feeding mechanism, and the multiple first infrared heating lamps 29 in each row are arranged in parallel on the same plane. The number of first infrared heating lamps 29 in each row is the same. The number of second infrared heating lamps 32 in the second infrared heating lamp assembly is the same as the number of first infrared heating lamps 29 in each row and corresponds one-to-one.

[0065] In practice, multiple first infrared heating lamps 29 in each row are arranged along the width of the insulating paper, and the first infrared heating lamps in two rows are arranged back and forth along the direction of travel of the insulating paper.

[0066] like Figure 12 As shown, in this embodiment, the paper feeding mechanism includes a paper feeding frame 33 and a conveyor chain 34 for conveying insulating paper. The paper ends of the insulating paper are pressed onto the conveyor chain 34 by a magnet. A drive shaft 35 and a driven shaft 36 are rotatably mounted on both sides of the paper feeding frame 33, respectively. A drive sprocket 37 is mounted on the drive shaft 35, and a driven sprocket 38 is mounted on the driven shaft 36. Both the drive sprocket 37 and the driven sprocket 38 mesh with the conveyor chain 34. A second drive motor 39 is provided on one side of the paper feeder frame 33, and a second planetary reducer 40 is connected between the output shaft of the second drive motor 39 and the drive shaft 35.

[0067] In actual use, the end of the insulating paper is first placed on the conveyor chain 34 of the paper feeding mechanism, and the insulating paper is fixed on the conveyor chain 34 using magnets. The second drive motor 39 drives the drive shaft 35 to rotate through the second planetary reducer 40 and the coupling. The drive shaft 35 drives the drive sprocket 37 to rotate, which in turn drives the conveyor chain 34 and the driven sprocket 38 to rotate. The conveyor chain 34 carries the end of the insulating paper to below the drive roller 2. After being lifted by the lifting cylinder 24 and the support cylinder 26, the glue roller 3 presses the insulating paper onto the drive roller 2. The drive roller 2 starts to drive the insulating paper to be conveyed. During the paper feeding process, the first infrared heating lamp 29 and the second infrared heating lamp 32 are activated to keep the insulating paper warm and dry.

[0068] In practice, the drive shaft 35, driven shaft 36, drive roller 2 and rubber roller 3 are arranged in parallel. The drive shaft 35 and driven shaft 36 are both composed of multiple segments connected by couplings. The conveyor chain 34 is also composed of multiple segments, and the number of segments of the conveyor chain 34 is the same as the number of segments of the drive shaft 35. Each segment of the drive shaft 35 corresponds to two drive sprockets 37.

[0069] In practice, both the first drive motor 17 and the second drive motor 39 are servo motors.

[0070] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A paper conveying and insulation device for a large-span bed bottom, characterized in that: The device includes a split bed (1), a drive roller (2), a glue roller (3), an infrared heating mechanism, and a paper feeding mechanism. The drive roller (2) is installed on one side of the split bed (1), and the glue roller (3) is installed on the ground foundation below the drive roller (2) in a height-adjustable manner. Two rear wall panels (4) are fixedly installed on the other side of the split bed (1), and a crossbeam (5) is provided between the two rear wall panels (4). The split bed (1) includes two bed seats (101) and a middle bed (102) suspended between the two bed seats (101). The bottom of the middle bed (102) forms an installation channel for the paper feeding mechanism. The paper feeding mechanism is installed on the ground foundation below the middle bed (102). The infrared heating mechanism is located above the paper feeding mechanism. The infrared heating mechanism includes a first infrared heating lamp assembly installed on the lower surface of the split bed (1) and a second infrared heating tube assembly installed below the crossbeam (5). The bottom of the middle bed (102) is fitted with a first insulation plate (7) and a reflector plate (8) in a pull-out manner from top to bottom. The first infrared heating lamp tube assembly is installed at the bottom of the reflector plate (8). The bottom of the crossbeam (5) is fitted with a second insulation plate (11) in a pull-out manner. The second infrared heating tube assembly is installed at the bottom of the second insulation plate (11).

2. The paper conveying and insulation device at the bottom of a large-span bed as described in claim 1, characterized in that: The bed base (101) is an L-shaped structure with a horizontal extension at the bottom. The middle bed (102) has an internal frame structure. The two ends of the middle bed (102) are respectively mounted on the horizontal extensions of the two bed bases (101). The bed bases (101) and the middle bed (102) are connected by bolts. Multiple channel steel frames (6) are fixedly installed on the middle bed (102). The top of the crossbeam (5) is fixedly connected to the bottom of the multiple channel steel frames (6). The multiple channel steel frames (6) are located between the two rear wall panels (4).

3. A paper conveying and insulation device for a large-span bed bottom as described in claim 1, characterized in that: The drive roller (2) is composed of multiple drive roller segments connected coaxially, and the glue roller (3) is composed of multiple glue-coated roller segments connected coaxially. The connection area of ​​the drive roller (2) and the connection area of ​​the glue roller (3) are staggered.

4. A paper conveying and insulation device for a large-span bed bottom as described in claim 3, characterized in that: The drive roller (2) includes a first drive roller section (201) and a second drive roller section (202). The first drive roller section (201) and the second drive roller section (202) are coaxially connected by a first connecting shaft (203). The first drive roller section (201) and the second drive roller section (202) both transmit power through the first connecting shaft (203). The split bed (1) has two side bearing seats (13) and a first intermediate bearing seat (14) on one side. The ends of the first drive roller section (201) and the second drive roller section (202) that are far apart are connected to the two side bearing seats (13) through bearings, and the first connecting shaft (203) is connected to the first intermediate bearing seat (14) through bearings.

5. A paper conveying and insulation device for a large-span bed bottom as described in claim 4, characterized in that: Multiple auxiliary supports are provided between the two side bearing seats (13) and the first intermediate bearing seat (14). The first auxiliary support includes a first auxiliary support seat (15) provided on one side of the split bed (1) and two first auxiliary support rollers (16) rotatably mounted on the first auxiliary support seat (15). The axial direction of the first auxiliary support roller (16) is parallel to the axial direction of the drive roller (2), and the first auxiliary support roller (16) is in rolling contact with the drive roller (2).

6. A paper conveying and insulation device for a large-span bed bottom as described in claim 1, characterized in that: A first drive motor (17) for driving the drive roller (2) is provided on one side of the split bed (1). A first planetary reducer (18) is connected between the output shaft of the first drive motor (17) and the drive roller (2). The output shaft of the first planetary reducer (18) is connected to one end of the drive roller (2) through a coupling (19).

7. A paper conveying and insulation device for a large-span bed bottom as described in claim 1, characterized in that: A rubber roller base (20) is fixed on the ground foundation. The two ends of the rubber roller (3) are respectively mounted on the rubber roller base (20) through a vertical sliding assembly. The vertical sliding assembly includes a vertical guide rail seat (21) fixed on the rubber roller base (20) and a slide seat (22) slidably mounted on the vertical guide rail seat (21). A seated bearing (23) is provided at each end of the rubber roller (3), and the seated bearing (23) is fixed on the slide seat (22).

8. A paper conveying and insulation device for a large-span bed bottom as described in claim 3, characterized in that: The rubber pressure roller (3) includes a first rubber-coated roller (301) and a second rubber-coated roller (302). The first rubber-coated roller (301) and the second rubber-coated roller (302) are coaxially connected by a second connecting shaft (303). The rubber pressure roller base (20) is provided with two lifting cylinders (24) for driving the two slides (22) to rise and fall respectively. The piston end of the lifting cylinder (24) is fixedly connected to the corresponding slide (22) through a connecting rod (25). The bottom of the first rubber-coated roller (301) and the second rubber-coated roller (302) are each supported by multiple support cylinders (26). The bottom of the second connecting shaft (303) is also supported by a support cylinder (26). The multiple support cylinders (26) are all located between the two lifting cylinders (24). The cylinder body of the support cylinder (26) is fixed on the rubber pressure roller base (20). When the support cylinder (26) is supported at the bottom of the first rubber-coated roller (301) or the second rubber-coated roller (302), the piston end of the support cylinder (26) is provided with a second auxiliary support; When the support cylinder (26) is supported at the bottom of the second connecting shaft (303), the piston end of the support cylinder (26) is provided with a second intermediate bearing seat for the second connecting shaft (303) to be installed.

9. A paper conveying and insulation device for a large-span bed bottom as described in claim 1, characterized in that: The first infrared heating lamp assembly includes multiple first infrared heating lamps (29) arranged in two rows at the bottom of the split bed (1). The first infrared heating lamps (29) are installed at the bottom of the reflector (8) by means of a tube clamp (30). The first infrared heating lamps (29) are parallel to the upper surface of the paper feeding mechanism. The first infrared heating lamps (29) are arranged at an acute angle to the paper feeding direction of the paper feeding mechanism. Multiple temperature sensors (31) are also installed below the reflector (8). The second infrared heating lamp assembly includes multiple second infrared heating lamps (32) arranged in a single row at the bottom of the second insulation plate (11). The second infrared heating lamps (32) have the same structure as the first infrared heating lamps (29) and are arranged in parallel to each other.

10. A paper conveying and insulation device for a large-span bed bottom as described in claim 1, characterized in that: The paper feeding mechanism includes a paper feeding frame (33) and a conveyor chain (34) for conveying insulating paper. The paper ends of the insulating paper are pressed onto the conveyor chain (34) by a magnet. A drive shaft (35) and a driven shaft (36) are rotatably mounted on both sides of the paper feeding frame (33). A drive sprocket (37) is mounted on the drive shaft (35), and a driven sprocket (38) is mounted on the driven shaft (36). Both the drive sprocket (37) and the driven sprocket (38) mesh with the conveyor chain (34). A second drive motor (39) is provided on one side of the paper feeder frame (33), and a second planetary reducer (40) is connected between the output shaft of the second drive motor (39) and the drive shaft (35).

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