Arc-shaped cover plate production line

Abstract

The present application relates to arc-shaped cover plate production technical field, especially arc-shaped cover plate production line, including: roll forming module, roll forming module includes: sizing roller group, side rib roller group, sizing roller group and side rib roller group are respectively composed of several roller group units, roller group unit includes: two roller shafts, roller shaft is rotatably connected with threaded cylinder in, roller shaft is slidably connected with forming roller, forming roller is fixedly connected with two mounting shells, mounting shell is slidably connected with connecting block in, connecting block is embedded with magnetic column in, threaded cylinder is provided with electromagnet in the position close to magnetic column, the present application changes the direction of magnetic field generated by electromagnet, makes adjacent connecting block and corresponding threaded cylinder screw transmission, drives forming roller to move by the relative rotation between roller shaft and threaded cylinder, and then changes the relative position of forming roller and roller shaft, so when changing production specification, the position of forming roller does not need to be adjusted one by one, saves the step of specification switching, shortens the downtime, improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of curved cover plate manufacturing technology, and more particularly to a curved cover plate production line. Background Technology

[0002] As a type of curved structural component, curved covers are widely used in construction, drainage, and environmental protection due to their excellent properties such as lightweight, high strength, and impact resistance. Their manufacturing typically uses sheet metal as raw material, involving a series of processes including leveling, punching, roll forming, and cutting. Roll forming is the key step determining the product's precision and contour. However, when producing products with different curvatures, widths, or cross-sectional shapes, the entire forming roller assembly must be completely disassembled from the equipment and replaced with a separate set of dedicated rollers. For two products with the same shape but different dimensions, the position of each forming roller must be adjusted individually. This adjustment method makes the changeover process extremely cumbersome, causing prolonged production line downtime and severely restricting overall production efficiency and equipment utilization. Summary of the Invention

[0003] This invention provides an arc-shaped cover plate production line to overcome the shortcomings of the roll forming process, which requires adjusting the position of each forming roller individually when switching production size specifications, resulting in cumbersome steps, long downtime, and reduced production efficiency.

[0004] The technical solution of the present invention is: an arc-shaped cover plate production line, comprising: an uncoiler, a leveling module, a punching module, a roll forming module, and a shearing module; the roll forming module comprises: a shaping roller group, an edge-biting roller group, a side rib roller group, a longitudinal rib roller group, an oblique rib roller group, a transverse rib roller group, and an arching roller group; the shaping roller group and the side rib roller group are each composed of several roller group units, and the roller group units are used to guide the deformation of the plate.

[0005] Furthermore, the roller assembly unit includes: two roller shafts, a threaded cylinder rotatably connected inside the roller shafts, the threaded cylinders having bidirectional threads, two pairs of symmetrically distributed sliding grooves on the roller shafts, a forming roller slidably connected to the roller shafts, two mounting shells fixedly connected to the forming rollers, the mounting shells sliding within adjacent sliding grooves, a connecting block slidably connected inside the mounting shells, the connecting block being threadedly connected to the adjacent threaded cylinder, a first elastic element fixedly connected between the connecting block and the adjacent forming roller, a magnetic column embedded in the connecting block, an electromagnet positioned near the magnetic column inside the threaded cylinder, a support assembly for supporting the two roller shafts being shared on both roller shafts, the magnetic field directions of the two magnetic columns corresponding to the same forming roller being opposite, and the line connecting the north and south poles of the magnetic column being parallel to the central axis of the roller shaft.

[0006] Furthermore, the support assembly includes: two support frames, respectively disposed at both ends of adjacent rollers; two bearing seats are slidably connected to the support frames; two baffles are detachably connected to the bearing seats; a main support member and a secondary support member are detachably connected to both ends of the rollers; the main support member and the secondary support member are rotatably connected to adjacent bearing seats; the secondary support member is driven by a power module through a connector; and a fixing ring is engaged at one end of the threaded cylinder near the adjacent main support member; the fixing ring is detachably connected to the adjacent baffle.

[0007] Furthermore, two extrusion columns are placed inside the mounting housing. The axis of the extrusion columns is parallel to the axis of the threaded cylinder. Both ends of the extrusion columns are in contact with the adjacent mounting housing. The connecting block is provided with a trapezoidal portion near the adjacent extrusion columns. The trapezoidal portion is used to extrude the extrusion columns to move. Two elastic strips are fixedly connected in the sliding groove. The elastic strips are used to allow the adjacent extrusion columns to be embedded in them and to limit the position of the adjacent extrusion columns.

[0008] Furthermore, the extrusion column is provided with multiple annular protrusions on its periphery.

[0009] Furthermore, a protective sleeve is fixedly connected to the outer side of the electromagnet, and two sets of rollers are symmetrically distributed on the protective sleeve. Each set of rollers is evenly distributed in a ring. The rollers contact the adjacent threaded cylinder. The electromagnet is limited and slidably connected to two baffles. A second elastic element is fixedly connected between the baffles and the electromagnet. The baffles are fixedly connected to ring-shaped elastic legs. The elastic legs contact the adjacent protective sleeve. The elastic legs are used to contact the adjacent threaded cylinder and limit the adjacent electromagnet.

[0010] Furthermore, both the baffle and the elastic support leg are made of ferromagnetic material.

[0011] Furthermore, a limiting post is slidably connected inside the connecting block, and a third elastic element is fixedly connected between the limiting post and the connecting block. A stepped hole is provided on the side of the mounting shell near the adjacent limiting post, and the stepped hole is used to limit the adjacent connecting block through the adjacent limiting post.

[0012] Furthermore, the sliding groove is provided with two symmetrically distributed guide ramps near the ends of the adjacent rollers, the guide ramps being used to guide the mounting shell into the adjacent sliding groove.

[0013] Furthermore, the connecting block is provided with symmetrically distributed limiting grooves, and the mounting shell is provided with a limiting part and a squeezing part near the adjacent limiting groove. The limiting part and the adjacent squeezing part are both located in the adjacent limiting groove. An elastic particle is fixed in the limiting groove, and the squeezing part is used to squeeze the adjacent elastic particle.

[0014] In this invention, the uncoiler, leveling module, and punching module can be located below the support of the roll forming module; the uncoiler, leveling module, and punching module can also be arranged side by side on one side of the roll forming module.

[0015] In this invention, the arching roller assembly is adjustable, and different arching angles can be adjusted according to different spans.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention changes the direction of the magnetic field generated by the electromagnet and generates magnetic attraction and repulsion forces with two connecting blocks on the same forming roller, so that one of the connecting blocks is threadedly driven with the corresponding threaded cylinder. By means of the relative rotation between the roller shaft and the threaded cylinder, the connecting block drives the forming roller to move, thereby changing the relative position of the forming roller and the roller shaft. In this way, when changing production specifications, it is not necessary to adjust the position of the forming roller one by one, saving the steps of specification switching, shortening the downtime, and improving production efficiency.

[0017] By using a baffle and elastic support legs to block the magnetic field generated by the electromagnet, the probability of two adjacent electromagnets in the same threaded cylinder interfering with each other is reduced. This allows multiple electromagnets in the same threaded cylinder to be activated simultaneously, adjusting the positions of multiple forming rollers at the same time, shortening the time required to adjust the forming rollers, and improving production efficiency.

[0018] By squeezing the elastic particles with the extrusion section, the elastic particles undergo elastic deformation, reducing the force when the connecting block contacts the threaded cylinder, thereby reducing the probability of damage caused by the collision between the connecting block and the threaded cylinder. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the roll forming module of the present invention; Figure 3 This is a three-dimensional structural diagram of the roller and threaded cylinder of the present invention; Figure 4 This is a three-dimensional structural diagram of the threaded cylinder and baffle of the present invention; Figure 5 This is a three-dimensional structural cross-sectional view of the roller shaft and main support component of the present invention; Figure 6 This is a three-dimensional structural diagram of the support frame and bearing seat of the present invention; Figure 7 This is a three-dimensional structural cross-sectional view of the roller shaft and forming roller of the present invention; Figure 8 This is a three-dimensional structural cross-sectional view of the threaded cylinder and mounting shell of the present invention; Figure 9 This is a three-dimensional structural cross-sectional view of the mounting shell and connecting block of the present invention. Figure 10 This is a three-dimensional structural diagram of the baffle and elastic support leg of the present invention; Figure 11 This is an exploded view of the mounting shell and connecting block of the present invention; Figure 12 This is a three-dimensional structural diagram of the arc-shaped cover plate of the present invention. Figure 13 This is a schematic diagram of another three-dimensional structure of the present invention.

[0020] Component names and serial numbers in the diagram: 100-Uncoiler, 200-Leveling module, 300-Punching module, 400-Roll forming module, 410-Shaping roller group, 420-Edge-pinching roller group, 430-Side rib roller group, 440-Longitudinal rib roller group, 450-Diagonal rib roller group, 460-Transverse rib roller group, 470-Arching roller group, 500-Shearing module, 600-Arc-shaped cover plate, 610-Edge-pinching section, 620-Side rib, 630-Transverse rib, 640-Longitudinal rib, 650-Diagonal rib, 1-Roller shaft, 101-Sliding groove, 2-Threaded cylinder, 3-Forming roller, 4-Installation. Shell, 401-Guiding slope, 5-Connecting block, 501-Limiting groove, 502-Limiting part, 503-Extrusion part, 6-First elastic element, 7-Magnetic column, 8-Electromagnet, 9-Support frame, 10-Bearing seat, 11-Baffle, 12-Main support, 13-Secondary support, 14-Fixing ring, 15-Extrusion column, 151-Trapezoidal part, 152-Annular protrusion, 16-Elastic strip, 17-Sheath, 18-Roller, 19-Baffle, 20-Second elastic element, 21-Elastic support leg, 22-Limiting column, 221-Step hole, 23-Third elastic element, 24-Elastic particle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0022] This embodiment discloses an arc-shaped cover plate production line to solve the problem that the current roll forming process requires adjusting the position of each forming roller individually when switching production size specifications, which is cumbersome, results in long downtime, and affects production efficiency.

[0023] Please refer to the attached document. Figure 1 and attached Figure 2The 600 arc-shaped cover plate production line includes: an uncoiler 100, a leveling module 200, a punching module 300, a roll forming module 400, and a shearing module 500. The uncoiler 100, leveling module 200, punching module 300, roll forming module 400, and shearing module 500 together constitute the arc-shaped cover plate production line. Among them, the uncoiler 100, leveling module 200, punching module 300, and shearing module 500 are existing equipment and will not be described in detail here.

[0024] Please refer to the attached document. Figure 1 Appendix Figure 2 and attached Figure 12 The roll forming module 400 includes: a shaping roller group 410, an edge-gripping roller group 420, a side rib roller group 430, a longitudinal rib roller group 440, a diagonal rib roller group 450, a transverse rib roller group 460, and an arching roller group 470. By adjusting the combination and sequence of the shaping roller group 410, the edge-gripping roller group 420, the side rib roller group 430, the longitudinal rib roller group 440, the diagonal rib roller group 450, the transverse rib roller group 460, and the arching roller group 470, arc-shaped cover plates with diagonal ribs, side ribs, transverse ribs, longitudinal ribs, and folded edges can be manufactured. 600, to increase the structural strength of the arc-shaped cover plate 600; wherein, the shaping roller group 410 is used to manufacture the cross-sectional bending shape of the arc-shaped cover plate 600, the edge-biting roller group 420 is used to form the edge-biting part 610, the side rib roller group 430 is used to form the side ribs 620, the longitudinal rib roller group 440 is used to form the longitudinal ribs 640, the oblique rib roller group 450 is used to form the oblique ribs 650, the transverse rib roller group 460 is used to form the transverse ribs 630, and the transverse rib roller group 460 and the arching roller group 470 together make the arc-shaped cover plate 600 as a whole produce an arc.

[0025] It should be noted that this application is attached Figure 3 Let's take the perspective of [the person in question] as an example to illustrate this.

[0026] Please refer to the attached document. Figure 2 To be continued Figure 10The shaping roller group 410 and the side rib roller group 430 are each composed of several roller group units. The roller group units are used to guide the deformation of the sheet metal. Each roller group unit includes: two roller shafts 1, with a threaded cylinder 2 rotatably connected inside the roller shaft 1. The threaded cylinder 2 is provided with a bidirectional thread, which is an existing structure and is not shown in detail in the attached figure. The roller shaft 1 is provided with two pairs of sliding grooves 101 symmetrically distributed on the left and right. The roller shaft 1 is slidably connected to a forming roller 3. The forming roller 3 is fixedly connected to two mounting shells 4. The mounting shells 4 slide within adjacent sliding grooves 101. A connecting block 5 is slidably connected inside the mounting shell 4. The connecting block 5 is used for threaded connection with the adjacent threaded cylinder 2, and the corresponding forming roller 3... The threads on the two connecting blocks 5 have different inclinations, which allows the two connecting blocks 5 to move in the left and right directions when they are threadedly driven with the threaded cylinder 2 respectively. A first elastic element 6 is fixed between the connecting block 5 and the adjacent forming roller 3. In the initial state, the first elastic element 6 has no elasticity. A magnetic column 7 is embedded in the connecting block 5. The magnetic poles of the two magnetic columns 7 corresponding to the same forming roller 3 are opposite, and the line connecting the north and south poles of the magnetic column 7 is parallel to the central axis of the roller shaft 1. An electromagnet 8 is provided in the threaded cylinder 2 near the magnetic column 7. The axial length of the electromagnet 8 is equal to the axial length of the magnetic column 7. A support assembly for supporting the two roller shafts 1 is provided on both roller shafts 1.

[0027] The above setup enables the electromagnet 8 to change its magnetic field direction and generate magnetic attraction and repulsion forces with the two adjacent connecting blocks 5, respectively. This allows one of the connecting blocks 5 to be threadedly driven by the corresponding threaded cylinder 2. The relative rotation between the roller shaft 1 and the threaded cylinder 2 drives the connecting block 5 to move the forming roller 3, thereby changing the relative position of the forming roller 3 and the roller shaft 1. As a result, when changing production specifications, it is not necessary to adjust the position of each forming roller 3 individually, saving the steps of specification switching, shortening downtime, and improving production efficiency.

[0028] Please refer to the attached document. Figure 2 To be continued Figure 6 The support assembly includes: two support frames 9, respectively located at both ends of adjacent roller shafts 1; two bearing seats 10 are slidably connected to the support frames 9; two baffles 11 are detachably connected to the bearing seats 10; the baffles 11 are used to limit the relative positions of adjacent bearing seats 10 and adjacent support frames 9 in the left and right directions; a main support member 12 and a secondary support member 13 are detachably connected to the left and right ends of the roller shaft 1, respectively; the main support member 12 and the secondary support member 13 are rotatably connected to the adjacent bearing seats 10; the secondary support member 13 is driven by the power module through a connector; a fixing ring 14 is snapped onto the left end of the threaded cylinder 2; the fixing ring 14 is composed of two semi-circular rings spliced ​​together; the fixing ring 14 is detachably connected to the adjacent baffle 11; the fixing ring 14 is used to fix the threaded cylinder 2 to the adjacent baffle 11.

[0029] Please refer to the attached document. Figure 8 and attached Figure 9The mounting shell 4 has rectangular through slots on both its upper and lower sides. Each rectangular through slot contains a pressing column 15, the axis of which is parallel to the axis of the threaded cylinder 2. Both ends of the pressing column 15 contact the rectangular through slots of the adjacent mounting shell 4. The connecting block 5 has trapezoidal portions 151 on both its upper and lower sides. The cross-section of each trapezoidal portion 151 is an isosceles trapezoid, used for moving the pressing column 15. Two elastic strips 16 are fixedly connected within the sliding groove 101. The elastic strips 16 can be made of elastic rubber. The elastic strip 16 is used to allow adjacent extrusion posts 15 to be embedded therein and to limit the adjacent extrusion posts 15. Initially, the middle part of the trapezoidal part 151 contacts the corresponding extrusion post 15, causing the extrusion post 15 to protrude from the adjacent outer side of the mounting shell 4. When the trapezoidal part 151 no longer contacts the adjacent extrusion post 15, the extrusion post 15 retracts into the rectangular through groove of the adjacent mounting shell 4. During the process of the connecting block 5 resetting and moving by relying on the adjacent first elastic member 6, the extrusion post 15 can be squeezed into the embedded elastic strip 16 by the trapezoidal part 151.

[0030] The above setup enables the extrusion column 15 to compress the elastic strip 16 and deform it, so that the extrusion column 15 is partially embedded in the elastic strip 16. This restricts the movement of the extrusion column 15 along the sliding groove 101, and keeps the relative position of the forming roller 3 and the roller shaft 1 stable during the process of guiding the deformation of the sheet material using the forming roller 3.

[0031] Please refer to the attached document. Figure 9 The extrusion column 15 is provided with multiple annular protrusions 152 on its periphery. The annular protrusions 152 are used to increase the number of pits generated by the extrusion column 15 extruding the elastic strip 16, thereby enhancing the limiting effect of the elastic strip 16 on the extrusion column 15.

[0032] Please refer to the attached document. Figure 8 and attached Figure 10A sheath 17 is fixedly attached to the outer side of the electromagnet 8. The sheath 17 is made of non-metallic material to avoid interfering with the magnetic force between the electromagnet 8 and the magnetic column 7. Two sets of rollers 18 are symmetrically distributed on the left and right sides of the sheath 17. Each set of rollers 18 consists of three rollers evenly distributed in a ring. The rollers 18 contact the inner side wall of the adjacent threaded cylinder 2. Baffles 19 are slidably connected to the left and right sides of the electromagnet 8, respectively. A second elastic element 20, which is a spring, is fixedly connected between the baffle 19 and the electromagnet 8. An annularly distributed elastic support leg 21 is fixedly attached to the baffle 19. The thickness of the elastic support leg 21 at the connection point with the adjacent baffle 19 is thinner than the thickness at other positions of the elastic support leg 21. This is used to guide the elastic support leg 21 at its connection point with the adjacent baffle 19 when the baffle 19 moves. The device swings; the elastic support leg 21 contacts the adjacent sheath 17. The end of the elastic support leg 21 away from the adjacent baffle 19 is provided with a rubber layer to enhance the friction between the elastic support leg 21 and the threaded cylinder 2. The elastic support leg 21 is used to contact the adjacent threaded cylinder 2 and limit the adjacent electromagnet 8. Both the baffle 19 and the elastic support leg 21 are made of ferromagnetic material. Iron-carbon alloy can be used here. On the one hand, the baffle 19 can move under the action of magnetic force. On the other hand, the baffle 19 and the elastic support leg 21 block the magnetic field generated by the electromagnet 8, reducing the probability of mutual interference between two adjacent electromagnets 8 in the same threaded cylinder 2. A Hall sensor array is provided in the threaded cylinder 2 to know the relative position of the forming roller 3 and the roller shaft 1 by sensing the position of the magnetic column 7.

[0033] The above setup enables the relative position of the electromagnet 8 and the threaded cylinder 2 to be locked by the contact between the elastic support leg 21 and the threaded cylinder 2, preventing the position of the electromagnet 8 and the threaded cylinder 2 from shifting due to factors such as vibration during production line operation. In addition, during the movement of the forming roller 3 along the roller shaft 1, the electromagnet 8 moves along with the forming roller 3 by means of the magnetic force between the magnetic column 7 and the electromagnet 8.

[0034] When it is necessary to change the size and specifications of the product, the power module in the roll forming module 400 is activated, causing the roller shaft 1 in the shaping roller group 410 and the side rib roller group 430 to rotate. At this time, the operator energizes the electromagnet 8 corresponding to the forming roller 3 whose position needs to be changed, so that the electromagnet 8 generates a magnetic field. The electromagnet 8 attracts the two adjacent baffles 19 to move closer to each other and compresses the second elastic element 20. The baffles 19 drive the elastic support leg 21 to move. The elastic support leg 21 is supported by the protective sleeve 17 and swings, so that the elastic support leg 21 loses contact with the threaded cylinder 2 and releases the limit on the electromagnet 8.

[0035] When the electromagnet 8 is energized, it drives an adjacent magnetic column 7 to move closer to the threaded cylinder 2 through magnetic attraction and drives another magnetic column 7 to move away from the threaded cylinder 2 through magnetic repulsion. When the magnetic column 7 moves, it drives the adjacent connecting block 5 to move together, stretching or compressing the adjacent first elastic element 6. At the same time, the connecting block 5 drives the trapezoidal part 151 to move and misalign with the adjacent extrusion column 15, so that the extrusion column 15 moves into the rectangular through groove of the corresponding connecting block 5 under the elastic action of the adjacent elastic strip 16. The elastic strip 16 returns to a smooth surface state. At this time, the elastic strip 16 releases the restriction on the adjacent extrusion column 15.

[0036] After the connecting block 5 is threadedly driven by the adjacent threaded cylinder 2, as the roller shaft 1 rotates, the connecting block 5 rotates circumferentially along the roller shaft 1 and also moves spirally along the threaded cylinder 2. This causes the connecting block 5 to drive the forming roller 3 to move, changing the relative position of the forming roller 3 and the roller shaft 1. Thus, by energizing a specific electromagnet 8, the position of a specific forming roller 3 can be adjusted without disassembling and reinstalling it, saving operation steps.

[0037] During the movement of the forming roller 3 along the roller shaft 1, the Hall sensor on the threaded cylinder 2 monitors the position of the forming roller 3 in real time. After the forming roller 3 moves to the designated position, the power supply to the electromagnet 8 is stopped, thus resetting the baffle 19, the second elastic element 20 and the elastic support leg 21. The elastic support leg 21 re-contacts the threaded cylinder 2 and limits the electromagnet 8. The connecting block 5 is reset under the drive of the adjacent first elastic element 6, and the trapezoidal part 151 re-presses the extrusion column 15 and embeds it into the elastic strip 16, thereby limiting the forming roller 3. Example 2

[0038] This embodiment is a further optimization based on embodiment 1, to facilitate the installation of the forming roller 3.

[0039] Please refer to the attached document. Figure 9 A limiting post 22 is slidably connected inside the connecting block 5. A third elastic element 23 is fixed between the limiting post 22 and the connecting block 5. The third elastic element 23 can be a spring that initially compresses and stores force. A stepped hole 221 is provided on the side of the mounting shell 4 near the adjacent limiting post 22. The stepped hole 221 is used to limit the adjacent connecting block 5 through the adjacent limiting post 22. The maximum diameter of the stepped hole 221 is not less than the diameter of the limiting post 22, and the minimum diameter of the stepped hole 221 is less than the diameter of the limiting post 22, so that the diameter of the limiting post 22 can be inserted into the stepped hole 221 but will not go out of the stepped hole 221. Under the action of the magnetic repulsion force of the adjacent electromagnet 8, the magnetic post 7 cannot push the connecting block 5 to the state where the limiting post 22 corresponds to the stepped hole 221.

[0040] The above configuration enables the trapezoidal part 151 to be misaligned with the adjacent extrusion column 15 by limiting the limit post 22 through the stepped hole 221. In this way, there is no extrusion force between the elastic strip 16 and the extrusion column 15 during the initial assembly process, reducing the moving resistance of the forming roller 3 relative to the roller shaft 1, and thus facilitating the installation of the forming roller 3.

[0041] Please refer to the attached document. Figure 8 The sliding groove 101 is provided with two guide slopes 401 that are symmetrically distributed vertically near the end of the adjacent roller shaft 1. The guide slopes 401 are used to guide the mounting shell 4 into the adjacent sliding groove 101, so that the mounting shell 4 can be slid into the corresponding sliding groove 101 during initial assembly.

[0042] Assembly steps: Assemble the magnetic column 7, limiting column 22, third elastic element 23 and elastic particle 24 to the corresponding positions of the connecting block 5. Then assemble the connecting block 5 and the first elastic element 6 into the mounting shell 4. Place the extrusion column 15 into the two rectangular through slots of the mounting shell 4 respectively. Then press the connecting block 5 towards the outside of the forming roller 3 to compress the first elastic element 6, so that the limiting column 22 gradually approaches the stepped hole 221. When the limiting column 22 and the stepped hole 221 are coaxial, the limiting column 22 moves under the elastic force of the third elastic element 23 and inserts into the stepped hole 221, limiting the relative position of the connecting block 5 and the mounting shell 4. In this state, the trapezoidal part 151 is misaligned with the extrusion column 15. Then, the forming roller 3 is sleeved on the roller shaft 1, and with the help of the guide inclined surface 401, the mounting shell 4 slides into the corresponding sliding groove 101 until the forming roller 3 moves to the corresponding position of the roller shaft 1.

[0043] Insert a tool into the stepped hole 221 and push the limiting post 22 to move the limiting post 22 into the connecting block 5 and compress the corresponding third elastic member 23, so that the limiting post 22 disengages from the stepped hole 221 and releases the limiting of the connecting block 5. At this time, the connecting block 5 moves under the action of the first elastic member 6 and finally makes the trapezoidal part 151 correspond to the adjacent extrusion post 15.

[0044] Place the electromagnet 8 into the threaded cylinder 2, and use a tool to move the electromagnet 8 to the position corresponding to the forming roller 3. This completes the installation of one forming roller 3 and electromagnet 8. The remaining forming rollers 3 and electromagnets 8 are installed in the same way. Example 3

[0045] This embodiment is a further optimization based on embodiment 2.

[0046] Please refer to the attached document. Figure 8 , Figure 9 and Figure 11The connecting block 5 is provided with two pairs of symmetrically distributed limiting grooves 501. Each pair of limiting grooves 501 consists of two symmetrically distributed vertically. The mounting shell 4 is provided with a limiting part 502 and a pressing part 503 near the adjacent limiting grooves 501. The pressing part 503 is located on the side of the limiting part 502 near the threaded cylinder 2. The limiting part 502 and the adjacent pressing part 503 are both located in the adjacent limiting grooves 501. There is a gap between the limiting part 502 and the connecting block 5. The pressing part 503 contacts the connecting block 5. An elastic particle 24 is fixed in the limiting groove 501. The elastic particle 24 can be made of elastic rubber. The pressing part 503 is used to press the adjacent elastic particle 24. Initially, the elastic particle 24 corresponds to the adjacent limiting part 502. When the connecting block 5 moves towards the threaded cylinder 2 and is about to contact the threaded cylinder 2, the elastic particle 24 contacts the adjacent pressing part 503.

[0047] By using the extrusion section 503 to compress the elastic particles 24, the elastic particles 24 undergo elastic deformation, reducing the force when the connecting block 5 contacts the threaded cylinder 2, thereby reducing the probability of damage caused by the collision between the connecting block 5 and the threaded cylinder 2.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An arc-shaped cover plate production line, characterized in that, include: Uncoiling machine (100), leveling module (200), punching module (300), roll forming module (400) and shearing module (500); The roll forming module (400) includes: The shaping roller group (410), the edge-biting roller group (420), the side rib roller group (430), the longitudinal rib roller group (440), the oblique rib roller group (450), the transverse rib roller group (460), and the arching roller group (470). The shaping roller group (410) and the side rib roller group (430) are each composed of several roller group units, which are used to guide the deformation of the plate. The roller unit includes: Two roller shafts (1) are provided, and a threaded cylinder (2) is rotatably connected inside the roller shafts (1). The threaded cylinder (2) is provided with a bidirectional thread. The roller shafts (1) are provided with two pairs of symmetrically distributed sliding grooves (101). A forming roller (3) is slidably connected to the roller shafts (1). The forming roller (3) is fixedly connected to two mounting shells (4). The mounting shells (4) slide in adjacent sliding grooves (101). A connecting block (5) is slidably connected inside the mounting shells (4). The connecting block (5) is used to thread with the adjacent threaded cylinder (2). The connecting block (5) is fixedly connected to the adjacent forming roller (3) with a first elastic element (6). The connecting block (5) is embedded with a magnetic column (7). An electromagnet (8) is provided in the threaded cylinder (2) near the magnetic column (7). The two roller shafts (1) are jointly provided with a support assembly for supporting the two roller shafts (1). The magnetic field directions of the two magnetic columns (7) corresponding to the same forming roller (3) are opposite, and the line connecting the north and south poles of the magnetic column (7) is parallel to the central axis of the roller shaft (1). The support components include: Two support frames (9) are respectively set at both ends of the adjacent roller shaft (1). The support frame (9) is slidably connected to two bearing seats (10). The bearing seats (10) are detachably connected to two baffles (11). The two ends of the roller shaft (1) are respectively detachably connected to a main support member (12) and a secondary support member (13). The main support member (12) and the secondary support member (13) are respectively rotatably connected to the adjacent bearing seats (10). The secondary support member (13) is driven by the power module through a connector. The threaded cylinder (2) is clamped with a fixing ring (14) at one end near the adjacent main support member (12). The fixing ring (14) is detachably connected to the adjacent baffle (11). Two extrusion columns (15) are placed inside the mounting shell (4). The axis of the extrusion column (15) is parallel to the axis of the threaded cylinder (2). Both ends of the extrusion column (15) are in contact with the adjacent mounting shell (4). The connecting block (5) is provided with a trapezoidal part (151) near the adjacent extrusion column (15). The trapezoidal part (151) is used to extrude the extrusion column (15) to move. Two elastic strips (16) are fixed in the sliding groove (101). The elastic strips (16) are used to allow the adjacent extrusion column (15) to be embedded in them and to limit the adjacent extrusion column (15). The electromagnet (8) is fixedly connected to a sheath (17), and the sheath (17) is rotatably connected to two sets of symmetrically distributed rollers (18). Each set of rollers (18) is evenly distributed in a ring. The rollers (18) contact the adjacent threaded cylinder (2). The electromagnet (8) is limited and slidably connected to two baffles (19). A second elastic element (20) is fixedly connected between the baffles (19) and the electromagnet (8). The baffles (19) are fixedly connected to annularly distributed elastic legs (21). The elastic legs (21) contact the adjacent sheath (17). The elastic legs (21) are used to contact the adjacent threaded cylinder (2) and limit the adjacent electromagnet (8). The connecting block (5) is slidably connected to a limiting post (22), and a third elastic element (23) is fixed between the limiting post (22) and the connecting block (5). The mounting shell (4) is provided with a stepped hole (221) on the side near the adjacent limiting post (22). The stepped hole (221) is used to limit the adjacent connecting block (5) through the adjacent limiting post (22). The connecting block (5) is provided with symmetrically distributed limiting grooves (501). The mounting shell (4) is provided with a limiting part (502) and a squeezing part (503) near the adjacent limiting groove (501). The limiting part (502) and the adjacent squeezing part (503) are both located in the adjacent limiting groove (501). An elastic particle (24) is fixed in the limiting groove (501). The squeezing part (503) is used to squeeze the adjacent elastic particle (24).

2. The arc-shaped cover plate production line according to claim 1, characterized in that, The extrusion column (15) is provided with a plurality of annular protrusions (152) on its periphery.

3. The arc-shaped cover plate production line according to claim 1, characterized in that, Both the baffle (19) and the elastic support leg (21) are made of ferromagnetic material.

4. The arc-shaped cover plate production line according to claim 1, characterized in that, The sliding groove (101) has two symmetrically distributed guide slopes (401) near the end of the adjacent roller (1). The guide slopes (401) are used to guide the mounting shell (4) into the adjacent sliding groove (101).

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