Continuous roll forming device

Abstract

A continuous roll forming device, comprising a sheet feeding device (1), a glue-coating device (2), a roll forming device (3), a roll discharging structure (5), and a mounting carrier (9) for mounting, wherein the sheet feeding device (1) comprises a sheet feeding power wheel (11), a sheet forming cutter (12), a temporary storage belt (13) and a sheet feeding rotating wheel (19), which are sequentially arranged; the sheet forming cutter (12) has reciprocating power; the temporary storage belt (13) has a planar part, which is tangent to the sheet feeding power wheel (11); the planar part has negative pressure and horizontal conveying power; the sheet feeding rotating wheel (19) has rotational power and is provided with sheet feeding adsorption heads (191) which are connected to negative pressure; and the sheet feeding adsorption heads (191) can directly or indirectly adsorb sheets (82) on the planar part of the temporary storage belt (13). The continuous roll forming device can realize continuous and automatic roll forming.

Description

Continuous roll forming device TECHNICAL FIELD

[0001] The present application relates to the field of sheet forming technology, in particular to a continuous roll forming device. BACKGROUND

[0002] The sheet feeding device of the conventional roll forming device needs to cut the roll-shaped strip into the same sheet and stack before feeding the sheet, and the stacked sheet is adsorbed into a single sheet before feeding, resulting in low production efficiency and high production cost.

[0003] The roll paper device of the conventional roll forming device is completed by multiple parallel stations, and cannot realize continuous production and has low automation degree.

[0004] The roll discharge structure of the conventional roll forming device is separated from the mold inside the roll-shaped sheet by blowing in multiple parallel stations to realize continuous production, and has low automation degree.

[0005] SUMMARY

[0006] An object of the present application is to solve or alleviate the above technical problems.

[0007] The present application adopts the following means: a continuous roll forming device, comprising a sheet feeding device, a gluing device, a roll forming device, a roll discharge structure, and a mounting carrier for mounting; the sheet feeding device comprises a sheet feeding power wheel, a sheet forming cutter, a buffer belt, and a sheet feeding rotating wheel arranged in sequence, the sheet forming cutter has reciprocating power; the buffer belt has a planar portion which is tangent to the sheet feeding power wheel; the planar portion of the buffer belt has negative pressure and horizontal conveying power; the sheet feeding rotating wheel has rotating power and is provided with a sheet feeding suction head connected with negative pressure; the sheet feeding suction head can directly or indirectly adsorb the sheet-shaped material on the planar portion of the buffer belt; the roll forming device comprises a rotating disc, a clamping piece assembly, and a sheet pressing assembly; the rotating disc has rotating power; the clamping piece assembly comprises a following clamping jaw and an opening and closing clamping jaw which can rotate relative to the following clamping jaw; the following clamping jaw and the opening and closing clamping jaw form a cylindrical or circular conical shape, the following clamping jaw is arranged on the rotating disc and rotates relative to the rotating disc as the rotating disc rotates; the sheet pressing assembly comprises a sheet pressing roller which changes the distance between the sheet pressing roller and the following clamping jaw as the rotating disc rotates; the roll discharge structure comprises a cylindrical roll discharge wheel which has rotating power; the roll discharge wheel has an axis of rotation which is perpendicular to the following clamping jaw and can abut against the following clamping jaw.

[0008] The present application can realize continuous automatic roll forming.

[0009] Further technical solutions, the sheet feeding device further comprises a transition belt with conveying power; the transition belt comprises a transition upper belt and a transition lower belt; the transition upper belt and the transition lower belt each have a planar portion, the planar portion of the transition upper belt and the planar portion of the transition lower belt are in contact with each other and are located in the same plane and overlap the planar portion of the buffer belt in the conveying direction, and the transition upper belt and the transition lower belt are completely staggered with the buffer belt in the width direction when viewed from above.

[0010] The reliability of the sheet being adsorbed by the sheet feeding adsorption head can be improved.

[0011] Further technical solutions, the sheet feeding device further comprises a sheet feeding output support and a sheet feeding output belt with conveying power, the sheet feeding output belt has a planar portion, the planar portion of the sheet feeding output belt is located in the same plane as the planar portion of the transition upper belt and overlaps the planar portion of the transition upper belt in the conveying direction; the sheet feeding output support is in contact with or close to the planar portion of the sheet feeding output belt, and a vertical plane passing through the rotation axis of the sheet feeding rotating wheel passes through the planar portion of the sheet feeding output belt.

[0012] The sheet can be reliably adsorbed by the sheet feeding adsorption head.

[0013] Further technical solutions, the ratio of the linear conveying speed of the sheet feeding output belt to the linear conveying speed of the transition belt is a constant value greater than one.

[0014] The sheets are equally spaced when conveyed from the transition belt to the sheet feeding output belt, and are convenient to be adsorbed by the sheet feeding adsorption head.

[0015] Further technical solutions, the sheet clamping assembly further comprises a rotation following connecting cylinder and a rotation following gear fixedly connected to the rotation following clamping jaw and the rotation following connecting cylinder at two ends; the roll forming device further comprises a sheet clamping fixing disc fixed on the mounting carrier; the sheet clamping fixing disc is fixedly provided with a rotation following rack segment engaged with the rotation following gear; and the rotation following connecting cylinder is rotationally connected to the rotating disc.

[0016] The rotation following clamping jaw can rotate synchronously with the rotating disc and has high reliability.

[0017] Further technical solutions, the sheet clamping assembly further comprises an opening and closing piece, a clamping jaw resetting piece, and a movable clamping jaw rod provided with a rotating pin; the opening and closing piece is provided with a movement turning groove and is linearly slidingly connected to the rotation following connecting cylinder; the rotating pin is embedded in the movement turning groove; the movable clamping jaw rod is arranged in the rotation following connecting cylinder and can rotate relative to the rotation following connecting cylinder; the clamping jaw resetting piece is in contact with the rotation following connecting cylinder and the opening and closing piece, so that the opening and closing piece has a tendency to move away from the rotation following clamping jaw; the sheet clamping fixing disc is provided with a jaw releasing boss arranged along the axis of the rotating disc, and the jaw releasing boss can directly or indirectly contact the opening and closing piece to make the opening and closing piece move axially.

[0018] The opening and closing of the opening and closing clamping jaw can be reliably realized along with the rotation of the rotating disc, and the opening and closing clamping jaw and the whole rotating clamping jaw rotate relative to the rotating disc.

[0019] Further technical solutions, the tabletting assembly further comprises a tabletting control shaft, a tabletting extension arm and a tabletting sliding block which are sequentially fixedly connected, the tabletting control shaft is rotationally connected with the rotating disc; the tabletting roller is directly or indirectly connected with the tabletting control shaft, and a spacing is arranged between the axis of the tabletting control shaft and the tabletting sliding block and the tabletting roller; the roll forming device further comprises a tabletting fixing disc fixed on the mounting carrier, the tabletting fixing disc is provided with an annular tabletting sliding groove, the tabletting sliding groove comprises a bearing segment and a spacing segment, the bearing segment and the spacing segment have a radius difference, and the tabletting sliding block is embedded in the tabletting sliding groove.

[0020] The tabletting roller can be reliably realized to bear and approach the rotating clamping jaw along with the rotation of the rotating disc.

[0021] Further technical solutions, in the process that the roll discharge wheel abuts against the rotating clamping jaw, the opening and closing clamping jaw is in an open state relative to the rotating clamping jaw.

[0022] The roll-shaped sheet-shaped object can be ensured to be separated from the rotating clamping jaw.

[0023] Further technical solutions, in the process that the roll discharge wheel abuts against the rotating clamping jaw, the rotating clamping jaw rotates along with the rotating disc while rotating relative to the rotating disc.

[0024] The rotating clamping jaw and the opening and closing clamping jaw in the inner wall of the roll-shaped sheet-shaped object can be made to abut against the corresponding part of the inner wall of the roll-shaped sheet-shaped object.

[0025] Further technical solutions, further comprising a synchronous driving structure; the synchronous driving structure comprises a synchronous driving motor, and the synchronous driving motor synchronously drives any at least two of the sheet feeding power wheel, the sheet forming cutter, the buffer belt, the sheet feeding rotating wheel and the rotating disc.

[0026] The dependence on electrical control can be reduced, cost can be reduced, and equipment reliability can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] The protective cover 93 and the output power belt 92 are not shown in FIGS. 2 and 3.

[0028] The rack 91, the output power belt 92, the protective cover 93, the negative pressure device 94 and the electrical control device 95 are not shown in FIGS. 4 to 6.

[0029] FIG. 1 is a perspective view of a continuous roll forming device according to an embodiment of the present application.

[0030] FIG. 2 is a perspective view of a continuous roll forming device according to an embodiment of the present application.

[0031] Fig. 3 is a perspective view of the continuous roll forming apparatus of the embodiment of the present application.

[0032] Fig. 4 is a front view of the continuous roll forming apparatus of the embodiment of the present application.

[0033] Fig. 5 is a rear view of the continuous roll forming apparatus of the embodiment of the present application.

[0034] Fig. 6 is a top view of the continuous roll forming apparatus of the embodiment of the present application.

[0035] Fig. 7 is a front view of the sectional plane SEC1.

[0036] Fig. 8 is a perspective view of the sectional plane SEC1, partially enlarged.

[0037] Fig. 9 is a front view of the sectional plane SEC1, partially enlarged.

[0038] Fig. 10 is a perspective view of the partial components of the roll forming apparatus 3 of the embodiment of the present application.

[0039] Fig. 11 is a perspective view of the jaw assembly 34 of the embodiment of the present application.

[0040] Fig. 12 is a perspective view of the swivel connecting cylinder 342 of the embodiment of the present application.

[0041] Fig. 13 is a perspective view of the jaw opening and closing claw 351 and other components of the embodiment of the present application.

[0042] Fig. 14 is a perspective view of the jaw assembly 34 of the embodiment of the present application, partially cutaway.

[0043] Fig. 15 is a perspective view of the jaw assembly 36 of the embodiment of the present application.

[0044] Fig. 16 is a perspective view of the jaw assembly 36 of the embodiment of the present application, partially cutaway.

[0045] Fig. 17 is a perspective view of the partial components of the roll forming apparatus 3 of the embodiment of the present application; this figure does not show the turntable 31, the pawl synchronization wheel 742, and the pawl synchronization belt 743, as compared to Fig. 10.

[0046] Fig. 18 is a front view of the partial components of the roll forming apparatus 3 of the embodiment of the present application; this figure does not show the turntable 31, as compared to Fig. 10. Arrow ARR1 indicates the direction of rotation of the turntable 31.

[0047] Fig. 19 is a side view of the partial components of the roll forming apparatus 3 of the embodiment of the present application.

[0048] Fig. 20 is a perspective view of the roll discharge structure 5 of the embodiment of the present application.

[0049] Figure 4 of the accompanying drawings is designated as the abstract drawing.

[0050] cutting die 121; sheet forming power wheel 122; sheet forming swing arm 123; buffer belt 13; buffer support 131; negative pressure cavity 132; buffer compression wheel 133; buffer belt power wheel 139; sheet feeding output belt 14; sheet feeding output support 141; sheet feeding output compression rod 142; sheet feeding output power wheel 149; transition belt 15; transition upper belt 151; transition lower belt 152; transition power wheel 159; negative pressure flat plate 16; tracking sensor 161; deviation rectifying sensor 162; tension adjusting structure 17; fixed tension wheel 171; movable tension wheel 172; movable tension wheel carrier 173; linear guide rail 174; unwinding wheel 18; unwinding motor 189; sheet feeding rotary wheel 19; sheet feeding suction head 191; gluing device 2; roll forming device 3; rotary disc 31; sheet clamping assembly hole 314; sheet pressing assembly hole 316; rotary disc connecting carrier 318; rotary disc power shaft 319; sheet clamping fixed disc 32; rotation following rack segment 321; paw loosening boss 322; attitude control rail 323; discharge rack segment 324; sheet pressing fixed disc 33; sheet pressing sliding groove 331; abutting segment 332; spacing segment 333; preparation segment 334; sheet clamping assembly 34; rotation following clamping jaw 341; rotation following connecting cylinder 342; rotation following gear 343; attitude control body 344; attitude control disc 345; opening and closing clamping jaw 351; movable clamping jaw rod 352; rotary pin 353; opening and closing piece 354; motion turning groove 355; paw loosening abutting piece 356; linear guide rail 357; clamping jaw resetting piece 358; sheet pressing assembly 36; sheet pressing roller 361; sheet pressing control shaft 362; sheet pressing extension arm 363; sheet pressing sliding block 364; compression structure 37; compression extension body 371; sheet pressing roller carrier 372; compression elastic piece groove 373; roller carrier hinged cylinder 374; compression elastic piece 379; sealing paw 38; paw power shaft 389; fixed disc mounting column 39; roll discharge structure 5; roll discharge wheel 51; roll discharge motor 519; discharge hopper 52; inclined bottom wall 521; discharge blocking wall 522; guide wall 523; notch 524; shielding wall 529; synchronous driving structure 7; synchronous driving motor 71; speed reduction output wheel 711; sheet feeding synchronous structure 72; sheet feeding synchronous wheel 721; sheet feeding synchronous belt 722; transition belt synchronous wheel 723; sheet feeding synchronous tension wheel 724; sheet feeding synchronous transition wheel 725; rotary disc synchronous structure 73; rotary disc transmission wheel 731; rotary disc driving wheel 732; paw synchronous structure 74; paw transmission belt 741; paw synchronous wheel 742; paw synchronous belt 743; belt roll 8; belt 81; sheet 82; glued sheet 83; roll-shaped sheet 84; mounting carrier 9; machine frame 91; output power belt 92; protective cover 93; negative pressure device 94; electric control device 95. DETAILED DESCRIPTION

[0051] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0052] As a specific embodiment, the continuous roll forming device of the embodiments of the present application comprises the sheet feeding device 1, the gluing device 2, the roll forming device 3, the roll discharging structure 5 and the mounting carrier 9 for mounting; in other words, the mounting carrier 9 is used for mounting the sheet feeding device 1, the gluing device 2, the roll forming device 3 and the roll discharging structure 5 so that the sheet feeding device 1, the gluing device 2, the roll forming device 3 and the roll discharging structure 5 are an integral equipment; of course, it is easy to understand that the sheet feeding device 1, the gluing device 2, the roll forming device 3 and the roll discharging structure 5 can also be mounted on multiple mounting carriers 9 to form a split equipment.

[0053] The sheet feeding device 1 comprises the sheet feeding driving wheel 11, the sheet forming cutter 12, the buffer belt 13 and the sheet rotating wheel 19 arranged in sequence, the sheet forming cutter 12 is provided with reciprocating power; the flat part of the buffer belt 13 is tangent to the sheet feeding driving wheel 11. Generally, the sheet feeding driving wheel 11 is provided with a sheet feeding driven wheel (not marked in the drawing) matched with the sheet feeding driving wheel 11 above.

[0054] The flat part of the buffer belt 13 is provided with negative pressure and horizontal conveying power. For example, the buffer belt 13 is a flexible annular belt and is driven by the buffer belt driving wheel 139 to have conveying power, the buffer belt 13 is provided with a buffer support 131, the buffer support 131 is provided with a negative pressure cavity 132 connected with negative pressure, the top end surface of the buffer support 131 is attached to the flat part of the buffer belt 13, and the top end surface of the buffer support 131 and the buffer belt 13 are both provided with through holes penetrating into the negative pressure cavity 132. The flat part of the buffer belt 13 always has negative pressure, which can ensure the flatness of the belt 81 or sheet 82 on it.

[0055] The sheet rotating wheel 19 is provided with rotating power and is provided with a sheet suction head 191 connected with negative pressure. For example, the sheet rotating wheel 19 is driven by the sheet synchronizing wheel 721 described below to have rotating power.

[0056] The upper piece suction head 191 can directly or indirectly adsorb the upper piece 82 on the flat portion of the buffer belt 13. For example, the vertical plane passing through the axis of the upper piece rotating wheel 19 passes through the flat portion of the buffer belt 13, and the upper piece suction head 191 on the upper piece rotating wheel 19 rotates to the lowest position to directly adsorb the upper piece 82 on the flat portion of the buffer belt 13. In the embodiment in which the upper piece 82 on the flat portion of the buffer belt 13 is conveyed through the upper piece output belt 14, the transition belt 15, etc. and then adsorbed by the upper piece suction head 191, the upper piece suction head 191 indirectly adsorbs the upper piece 82 on the flat portion of the buffer belt 13.

[0057] The working principle of the upper piece device 1 is that the upper piece driven wheel clamps the belt 81 with the upper piece power wheel 11, the rotation of the upper piece power wheel 11 moves the belt 81 between the two, so that one end of the belt 81 extends onto the flat portion of the buffer belt 13, at this time, the one end of the belt 81 remains flat, and the reciprocating movement of the piece forming cutter 12 cuts off the one end of the belt 81 to form the piece 82.

[0058] Then the upper piece suction head 191 directly or indirectly adsorbs the upper piece 82 on the flat portion of the buffer belt 13. During the rotation of the upper piece rotating wheel 19, the glue applying device 2 applies glue to the piece 82 adsorbed by the upper piece suction head 191 to form a glued piece 83. The glue applying device 2 is a conventional device for applying glue to the piece 82 in the prior art.

[0059] The glued piece 83 adsorbed by the upper piece suction head 191 moves with the upper piece rotating wheel 19 to the highest position of the upper piece rotating wheel 19, at which time the glued piece 83 is approximately horizontal, ready to be clamped by the rotating jaw 341 and the opening and closing jaw 351 described later.

[0060] As can be seen from the above, the upper piece device 1 can continuously cut the belt 81 into pieces 82 and upper piece the glued piece 83.

[0061] As one of the specific embodiments, the sheet feeding device 1 further comprises a transition belt 15 provided with a conveying power, such as driven by a transition power wheel 159; the transition belt 15 comprises a transition upper belt 151 and a transition lower belt 152; the transition upper belt 151 and the transition lower belt 152 are both provided with a planar portion, the planar portion of the transition upper belt 151 and the planar portion of the transition lower belt 152 are in contact with each other and are both in the same plane with the overlapping portion of the planar portion of the transition upper belt 151 and the planar portion of the transition lower belt 152 in the conveying direction (such as the left-right direction shown in FIG. 6) of the buffer belt 13, and are completely staggered in the width direction of the buffer belt 13 when viewed from above, such as shown in FIG. 6, the transition upper belt 151 and the transition lower belt 152 are both two and are respectively located on both sides of the buffer belt 13. The sheet-shaped object 82 conveyed on the buffer belt 13 moves to the aforementioned overlapping portion, and the portion of the sheet-shaped object 82 is clamped by the planar portion of the transition upper belt 151 and the planar portion of the transition lower belt 152 and continues to be conveyed, until the sheet-shaped object 82 is separated from the buffer belt 13, at which time the sheet-shaped object 82 is not adsorbed by the negative pressure of the buffer belt 13 and is more easily adsorbed by the sheet feeding adsorption head 191, which can improve the reliability of the sheet-shaped object 82 being adsorbed by the sheet feeding adsorption head 191. For example, the sheet feeding adsorption head 191 adsorbs the portion of the belt-shaped object 81 between the two transition upper belts 151, indirectly adsorbing the sheet-shaped object 82 on the planar portion of the buffer belt 13.

[0062] As one of the specific embodiments, the sheet feeding device 1 further comprises a sheet feeding output support 141 and a sheet feeding output belt 14 provided with a conveying power, the planar portion of the sheet feeding output belt 14 is in the same plane with the planar portion of the transition upper belt 151 and there is an overlapping portion in the conveying direction; the sheet feeding output support 141 is in contact with or close to the planar portion of the sheet feeding output belt 14, and the vertical plane passing through the rotation axis of the sheet feeding rotating wheel 19 passes through the planar portion of the sheet feeding output belt 14. After the portion of the sheet-shaped object 82 is clamped by the planar portion of the transition upper belt 151 and the planar portion of the transition lower belt 152 and conveyed onto the sheet feeding output belt 14, the sheet feeding output belt 14 conveys the sheet-shaped object 82 until it is adsorbed by the sheet feeding adsorption head 191; during the process of the sheet feeding adsorption head 191 adsorbing the sheet-shaped object 82, the middle portion of the sheet-shaped object 82 does not sag and is a whole plane, which can ensure that the sheet-shaped object 82 is lifted by the sheet feeding adsorption head 191.

[0063] As one of the specific embodiments, the ratio of the conveying linear speed of the sheet feeding output belt 14 to the conveying linear speed of the transition belt 15 is a constant value greater than one, such as assuming that the conveying linear speed of the sheet feeding output belt 14 is two meters per second and the conveying linear speed of the transition belt 15 is one meter per second, the ratio of the two is two. The sheet-shaped objects 82 are equally spaced apart when conveyed from the transition belt 15 to the sheet feeding output belt 14, which facilitates being adsorbed by the sheet feeding adsorption head 191.

[0064] As one of the specific embodiments, the sheet feeding device 1 further comprises a sheet feeding output pressing rod 142, which has a tendency to approach the sheet feeding output support 141, such as the sheet feeding output pressing rod 142 is hinged at one end to the mounting carrier 9, and the other end has a tendency to approach the sheet feeding output support 141 by gravity. It can ensure that the spacing of the sheet 82 on the sheet feeding output belt 14 is not easy to change, and it is convenient to be sucked by the sheet feeding suction head 191.

[0065] As one of the specific embodiments, the sheet feeding device 1 further comprises a cutter fixing die 121, a sheet forming swing arm 123, and a sheet forming power wheel 122 with rotating power, the sheet forming cutter 12 is linearly slidingly connected with the cutter fixing die 121; the sheet forming swing arm 123 is hingedly connected with the sheet forming power wheel 122 at one end, and is hingedly connected with the sheet forming cutter 12 at the other end, and the sheet forming cutter 12 is in contact with the cutter fixing die 121. The rotation of the sheet forming power wheel 122 causes the sheet forming cutter 12 to reciprocate up and down to cut the strip 81 and form the sheet 82.

[0066] As one of the specific embodiments, the sheet feeding device 1 further comprises a negative pressure flat plate 16, a tracking sensor 161, a unwinding wheel 18, and a unwinding motor 189 driving the unwinding wheel 18 to rotate, the tracking sensor 161 is electrically connected with the unwinding motor 189, and the tracking sensor 161 is directly opposite to the negative pressure flat plate 16. The negative pressure flat plate 16 can be the same as the buffer support 131 in the way of realizing negative pressure, which will not be repeated here. The strip roll 8 is fixed on the unwinding wheel 18 and leads out the strip 81, and the strip 81 is sucked on the negative pressure flat plate 16 to be a plane after passing through the negative pressure flat plate 16. The tracking sensor 161 is a conventional device for identifying the label on the sheet 82 in the prior art. The unwinding motor 189 rotates according to the identification signal of the label on the sheet 82 by the tracking sensor 161, which can automatically control the speed of releasing the sheet 82 according to the needs. The sheet feeding device 1 further comprises a deviation correction sensor 162 and a deviation correction motor (not marked in the figure) capable of swinging the unwinding wheel 18, the deviation correction sensor 162 is a conventional sensor for identifying the positions of both sides of the strip 81 in the prior art, and the deviation correction sensor 162 is electrically connected with the deviation correction motor, and the deviation correction motor swings the unwinding wheel 18 according to the signal of the deviation correction sensor 162 to realize deviation correction.

[0067] As one of the specific embodiments, the sheet feeding device 1 further comprises a tension adjusting structure 17; the tension adjusting structure 17 comprises a movable tension roller frame 173, a plurality of fixed tension rollers 171 and a plurality of movable tension rollers 172 arranged on the movable tension roller frame 173; it is easy to understand that the positions of the fixed tension rollers 171 are fixed relative to the mounting carrier 9, and the movable tension roller frame 173 can slide linearly relative to the fixed tension rollers 171, such as through linear guide rails 174 to realize linear sliding relative to the fixed tension rollers 171. The belt 81 is wound around the fixed tension rollers 171 and the movable tension rollers 172 in turn to realize tensioning of the belt 81, which can ensure that the belt 81 is flat. The friction of the linear guide rails 174 and the weight of the movable tension roller frame 173 can be adjusted to realize adjustable tensioning of the belt 81.

[0068] The roll forming device 3 comprises a rotating disc 31, a clamping piece assembly 34 and a sheet pressing assembly 36.

[0069] The rotating disc 31 has rotating power. For example, the rotating disc 31 is fixedly provided with a rotating disc power shaft 319, and the rotating disc power shaft 319 is rotated by a conventional driving means such as a motor; of course, the rotating driving can also be realized by the synchronous driving structure 7 described below.

[0070] The clamping piece assembly 34 comprises a following clamping jaw 341 and an opening and closing clamping jaw 351 capable of rotating relative to the following clamping jaw 341; the following clamping jaw 341 and the opening and closing clamping jaw 351 form a cylindrical or circular cone shape, and it is easy to understand that the shape formed by the following clamping jaw 341 and the opening and closing clamping jaw 351 is overall cylindrical (the diameters of the two ends are equal) or circular cone (the diameters of the two ends are different). It should be noted that when the shape formed by the following clamping jaw 341 and the opening and closing clamping jaw 351 is cylindrical, the shape of the roll-shaped sheet 84 described below is also cylindrical. Of course, after the opening and closing clamping jaw 351 is opened relative to the following clamping jaw 341, the following clamping jaw 341 and the opening and closing clamping jaw 351 still form a cylindrical or circular cone shape.

[0071] The following clamping jaw 341 is arranged on the rotating disc 31 and rotates relative to the rotating disc 31 as the rotating disc 31 rotates. It is easy to understand that the opening and closing clamping jaw 351 and the following clamping jaw 341 can be driven by separate servo motors and realized by conventional electric control means, so that the opening and closing clamping jaw 351 rotates relative to the following clamping jaw 341, and the following clamping jaw 341 rotates relative to the rotating disc 31 as the rotating disc 31 rotates.

[0072] The sheet pressing assembly 36 comprises a sheet pressing roller 361, and the distance between the sheet pressing roller 361 and the following clamping jaw 341 changes as the rotating disc 31 rotates.

[0073] The working principle of the roll forming device 3 is that the upper sheet rotating wheel 19 drives the upper sheet adsorption head 191 to rotate so that the rubber-coated sheet-shaped object 83 adsorbed by the upper sheet adsorption head 191 is substantially horizontal when the upper sheet adsorption head 191 is substantially located at the top end of the upper sheet rotating wheel 19; the opening and closing jaw 351 rotates with the rotating jaw 341 so that the opening and closing jaw 351 and the rotating jaw 341 clamp the rubber-coated sheet-shaped object 83; the opening and closing jaw 351 and the rotating jaw 341 clamp the rubber-coated sheet-shaped object 83 and rotate with the rotating disc 31, and the process corresponds to the clamping position of the rubber-coated sheet-shaped object 83.

[0074] Then, the sheet pressing roller 361 approaches the rotating jaw 341 until it abuts against the rubber-coated sheet-shaped object 83, so that the rubber-coated sheet-shaped object 83 gradually adheres to the cylinder or circular cone of the opening and closing jaw 351 and the rotating jaw 341, and the rubber-coated sheet-shaped object 83 is completely adhered to the opening and closing jaw 351 and the rotating jaw 341 to form the roll-shaped sheet-shaped object 84; the process corresponds to the position of curling the rubber-coated sheet-shaped object 83. It is easy to understand that the glue on the roll-shaped sheet-shaped object 84 enables it to maintain its shape.

[0075] Then, the part of the roll-shaped sheet-shaped object 84 beyond the axial length of the rotating jaw 341 is abutted against one end of the rotating jaw 341 by the sealing pawl 38 described below to realize sealing, in other words, the roll-shaped sheet-shaped object 84 is open at one end and sealed at the other end due to the abutment of the sealing pawl 38 to form the sealed roll-shaped sheet-shaped object 84; the process corresponds to the position of sealing the roll-shaped sheet-shaped object 84; and in the process, the sheet pressing roller 361 remains abutting against the rubber-coated sheet-shaped object 83.

[0076] Then, the opening and closing jaw 351 rotates relative to the rotating jaw 341 to release the sealed roll-shaped sheet-shaped object 84, and the sheet pressing roller 361 moves away from the rotating jaw 341 by a large distance, so that the sealed roll-shaped sheet-shaped object 84 moves away from the rotating jaw 341 and the opening and closing jaw 351 along the rotating jaw 341 by the roll discharge structure 5 described below, and the process is the position of outputting the roll-shaped sheet-shaped object 84.

[0077] Then, the sheet pressing roller 361 approaches the rotating jaw 341 but still has a small distance between the sheet pressing roller 361 and the rotating jaw 341; the process is the position of the sheet pressing roller 361 approaching and preparing for the position of clamping the rubber-coated sheet-shaped object 83 in the next cycle.

[0078] The above process is repeated, that is, the roll-shaped sheet-shaped object 84 can be continuously and automatically produced; during the continuous production process, the rotating disc 31 always rotates.

[0079] It is easy to understand that all the above stations can achieve better production effect, but it does not mean that all the above stations are essential to the roll forming device 3; in other words, only the station for clamping the adhesive sheet 83, the station for curling the adhesive sheet 83, and the station for outputting the roll-shaped sheet 84 are essential stations.

[0080] As one of the specific embodiments, the clamping piece assembly 34 further comprises a synchronous connecting cylinder 342 and a synchronous gear 343 fixedly connected to the synchronous clamping jaw 341 and the synchronous connecting cylinder 342 at both ends; the roll forming device 3 further comprises a clamping piece fixing disc 32 fixed on the mounting carrier 9, such as fixedly connected through the fixing disc mounting column 39; the clamping piece fixing disc 32 is fixedly provided with a synchronous rack segment 321 engaged with the synchronous gear 343; the synchronous connecting cylinder 342 is rotationally connected with the rotating disc 31. For example, the rotating disc connecting carrier 318 is fixed on the rotating disc 31, and the synchronous connecting cylinder 342 is rotationally connected with the rotating disc connecting carrier 318 fixed on the rotating disc 31 through a bearing, so that the synchronous connecting cylinder 342 is rotationally connected with the rotating disc 31. The synchronous clamping jaw 341 can rotate synchronously with the rotating disc 31, and the reliability is high. The range of the central angle of the synchronous rack segment 321 (relative to the central angle of the rotating disc 31) corresponds to the station for curling the adhesive sheet 83.

[0081] As one of the specific embodiments, the clamping piece assembly 34 further comprises an opening and closing piece 354, a clamping jaw reset piece 358, and a movable clamping jaw rod 352 provided with a rotating pin 353; the opening and closing piece 354 is provided with a movement turning groove 355 and is linearly slidingly connected with the rotation following connecting cylinder 342 (in the linear direction along the axis of the movable clamping jaw rod 352), for example, the linear sliding blocks (as shown in FIG. 13, the four block-shaped objects at the opposite end of the opening and closing clamping jaw 351 of the opening and closing piece 354 are linear sliding blocks) of the opening and closing piece 354 are matched with the linear sliding grooves (not marked in the drawing) of the rotation following connecting cylinder 342 to realize the linear sliding connection; the rotating pin 353 is embedded in the movement turning groove 355, and it is easy to understand that the movement turning groove 355 is a groove formed by moving along the axis of the movable clamping jaw rod 352 while moving around the axis of the movable clamping jaw rod 352; the movable clamping jaw rod 352 is arranged in the rotation following connecting cylinder 342 and can rotate relative to the rotation following connecting cylinder 342, and it is easy to understand that the opening and closing clamping jaw 351 can also rotate relative to the rotation following clamping jaw 341 accordingly; the clamping jaw reset piece 358 abuts against the rotation following connecting cylinder 342 and the opening and closing piece 354 respectively, so that the opening and closing piece 354 has a tendency to move away from the rotation following clamping jaw 341; the clamping piece fixing disc 32 is provided with a jaw loosening boss 322 arranged in the direction of the axis of the rotation disc 31, and the jaw loosening boss 322 can directly or indirectly abut against the opening and closing piece 354 to make the opening and closing piece 354 move axially (in the direction along the axis of the movable clamping jaw rod 352). For example, the tail end of the opening and closing piece 354 is provided with a jaw loosening abutting piece 356, the jaw loosening boss 322 indirectly abuts against the opening and closing piece 354 through the jaw loosening abutting piece 356, thereby enabling the opening and closing piece 354 to move axially. Generally, the jaw loosening abutting piece 356 is internally provided with a bearing (not shown in the drawing) sleeved on the opening and closing piece 354, and the bottom end of the jaw loosening abutting piece 356 is connected with the rotation disc connecting carrier 318 through a linear guide rail 357 to improve stability. It is easy to understand that the jaw loosening boss 322 is overall circular when viewed from the front, and the two ends thereof are transitioned through inclined surfaces. The corresponding central angle (central angle relative to the axis of the rotation disc 31) of the jaw loosening boss 322 corresponds to the workstations for outputting the coiled sheet-like object 84 and the tabletting roller 361 approaching the preparation workstation, and the opening and closing clamping jaw 351 rotates relative to the rotation following clamping jaw 341 to open and not clamp the coated sheet-like object 83 at these two workstations; the specific process is that, in the process of the jaw loosening boss 322 abutting against the opening and closing piece 354 to make the opening and closing piece 354 move axially, the movement turning groove 355 abuts against the rotating pin 353 to make the movable clamping jaw rod 352 drive the opening and closing clamping jaw 351 to rotate and loosen. At other workstations, the jaw loosening boss 322 does not abut against the opening and closing piece 354, the opening and closing piece 354 is reset under the elastic force of the clamping jaw reset piece 358, and the opening and closing clamping jaw 351 rotates relative to the rotation following clamping jaw 341 to close and clamp the coated sheet-like object 83; and both the opening and closing clamping jaw 351 and the rotation following clamping jaw 341 can rotate relative to the rotation disc 31 along with the rotation following gear 343. The opening and closing clamping jaw 351 can be reliably opened and closed along with the rotation of the rotation disc 31, and the opening and closing clamping jaw 351 and the rotation following clamping jaw 341 can rotate relative to the rotation disc 31 as a whole.

[0082] As one of the specific embodiments, the clamping piece fixing disc 32 is further provided with a posture control rail 323 staggered with the rotating rack segment 321 in the axial direction of the rotating disc 31, and one end of the rotating connection barrel 342 is fixedly provided with a posture control body 344 capable of being attached to the posture control rail 323. For example, one end of the rotating connection barrel 342 is fixedly provided with a posture control disc 345, and four cylindrical posture control bodies 344 are uniformly arranged on the posture control disc 345. Of course, the posture control body 344 can also be a roller. When viewed in the axial direction of the rotating disc 31, the posture control rail 323 and the rotating rack segment 321 together form a closed annular shape. It should be noted that the discharge rack segment 324 mentioned later is arranged in the middle of the posture control rail 323 and is staggered with the posture control rail 323 in the axial direction of the rotating disc 31, so that the posture control rail 323 is divided into two segments by the discharge rack segment 324. It should also be understood that when viewed in the axial direction of the rotating disc 31, the posture control rail 323 and the rotating rack segment 321 together form a closed annular shape. The discharge rack segment 324 is capable of being engaged with the rotating gear 343. This can ensure that the rotating clamping jaw 341 has a uniform posture during each rotation (one circle of the rotating disc 31) of the rotating disc 31, and will not be adjusted due to gravity and other factors, thereby ensuring accurate clamping of the glued sheet-shaped object 83.

[0083] As one of the specific embodiments, the tabletting assembly 36 further comprises a tabletting control shaft 362, a tabletting extension arm 363 and a tabletting slider 364 fixedly connected in sequence, the tabletting control shaft 362 is rotationally connected with the turntable 31, such as rotationally connected with the turntable connection carrier 318 fixed on the turntable 31 through a bearing; the tabletting roller 361 is directly or indirectly connected with the tabletting control shaft 362, and a spacing is provided between the tabletting slider 364, the tabletting roller 361 and the axis of the tabletting control shaft 362; the roll forming device 3 further comprises a tabletting fixed disc 33 fixed on the mounting carrier 9, the tabletting fixed disc 33 is provided with a ring-shaped (ring-shaped refers to a shape with the head connected with the tail) tabletting sliding groove 331, the tabletting sliding groove 331 comprises an abutting section 332 and a spacing section 333, the abutting section 332 and the spacing section 333 have a radius difference, and the tabletting slider 364 is embedded in the tabletting sliding groove 331. It is easy to understand that the abutting section 332 and the spacing section 333 are both ring-shaped when viewed from the front, and the smooth transition of the tabletting slider 364 is realized through a slope or the like. It is easy to understand that the clamping disc 32 and the tabletting fixed disc 33 can also be an integral part; the present embodiment only distinguishes between the two for the convenience of explanation. When the tabletting slider 364 is located in the abutting section 332 of the tabletting sliding groove 331, the tabletting roller 361 abuts against the rotating clamp jaw 341 and the glue-coated sheet-like object 83; when the tabletting slider 364 is located in the spacing section 333 of the tabletting sliding groove 331, the tabletting slider 364 drives the tabletting control shaft 362 and the tabletting roller 361 to rotate, so that the tabletting roller 361 is away from the rotating clamp jaw 341 by a large distance. The tabletting roller 361 can be reliably realized to abut against and approach the rotating clamp jaw 341 while the turntable 31 rotates.

[0084] As one of the specific embodiments, the tabletting assembly 36 further comprises a tight pressing structure 37, the tight pressing structure 37 comprises a pressing extension body 371 and a roller holder hinged cylinder 374 provided with a tight pressing elastic member groove 373, the roller holder hinged cylinder 374 is rotationally connected with the tabletting control shaft 362, such as the roller holder hinged cylinder 374 is fixedly provided with the roller holder hinged cylinder 374, the roller holder hinged cylinder 374 is sleeved on the tabletting control shaft 362 so that the roller holder hinged cylinder 374 is rotationally connected with the tabletting control shaft 362, the tabletting roller 361 is arranged on the roller holder hinged cylinder 374, the pressing extension body 371 passes through the tight pressing elastic member groove 373, and tight pressing elastic members 379 are arranged on both sides of the tight pressing elastic member groove 373, the tight pressing elastic members 379 respectively abut against the tight pressing elastic member groove 373 so that the pressing extension body 371 has a tendency to be centered with respect to the tight pressing elastic member groove 373. It is easy to understand that the tabletting roller 361 is indirectly connected with the tabletting control shaft 362 in this embodiment. The tabletting control shaft 362 rotates so that the tabletting roller 361 abuts against the rotating clamp jaw 341 through the elastic force of the tight pressing elastic members 379, which can ensure that the abutting force of the tabletting roller 361 against the rotating clamp jaw 341 is stable, and the quality of the curled glue-coated sheet-like object 83 is ensured.

[0085] As one of the specific embodiments, the roll forming device 3 further comprises a sealing pawl 38 with rotating power, which can abut or be close to one end of the following pawl 341. The end of the roll-shaped sheet 84 can be sealed.

[0086] As one of the specific embodiments, the tablet chute 331 further comprises a preparation section 334, which is located between the end of the spacing section 333 and the beginning of the abutting section 332, and the radius of the preparation section 334 is between the radius of the abutting section 332 and the radius of the spacing section 333. It can be easily understood that the abutting section 332, the spacing section 333, and the preparation section 334 are sequentially connected to form a ring-shaped tablet chute 331. The necessary diameter of the rotating disc 31 can be reduced, thereby controlling the overall size of the device.

[0087] The roll forming device 3 comprises a rotating disc 31 with rotating power, a following pawl 341, and an opening and closing pawl 351 that can rotate relative to the following pawl 341. The following pawl 341 and the opening and closing pawl 351 form a cylindrical or circular conical shape, and the following pawl 341 is arranged on the rotating disc 31 and rotates relative to the rotating disc 31 as the rotating disc 31 rotates.

[0088] The roll discharging structure 5 comprises a cylindrical roll discharging wheel 51 with rotating power.

[0089] The roll discharging wheel 51 has an axis that is perpendicular to the following pawl 341 and can abut the following pawl 341.

[0090] The working principle of the roll discharging structure 5 is that when the work station outputs the roll-shaped sheet 84, the roll discharging wheel 51 abuts the following pawl 341 and the roll-shaped sheet 84 thereon. The roll discharging wheel 51 moves the roll-shaped sheet 84 along the following pawl 341 by relying on friction until the roll-shaped sheet 84 separates from the following pawl 341. The roll-shaped sheet 84 falls into the discharge hopper 52 described below, thereby continuously separating the roll-shaped sheet 84 from the following pawl 341.

[0091] As one of the specific embodiments, the opening-closing jaw 351 is open relative to the rotating jaw 341 during the process that the roll discharging wheel 51 abuts against the rotating jaw 341. It is easy to understand that, in the previous workstations of clamping and holding the adhesive sheet 83, curling the adhesive sheet 83, etc., the narrow rectangular part of one side of the adhesive sheet 83 is clamped by the rotating jaw 341 and the opening-closing jaw 351, which is located in the inner wall of the roll-shaped sheet 84 after the roll-shaped sheet 84 is formed and does not fit the inner wall of the roll-shaped sheet 84. Therefore, the opening-closing jaw 351 is open relative to the rotating jaw 341 during the process that the roll discharging wheel 51 abuts against the rotating jaw 341; there is no part clamped by the opening-closing jaw 351 and the rotating jaw 341 in the inner wall of the roll-shaped sheet 84, which can ensure that the roll-shaped sheet 84 is separated from the rotating jaw 341.

[0092] As one of the specific embodiments, the rotating jaw 341 rotates relative to the rotating disc 31 while rotating with the rotating disc 31 during the process that the roll discharging wheel 51 abuts against the rotating jaw 341. The roll-shaped sheet 84 sleeved on the rotating jaw 341 moves axially along with the rotating jaw 341 while rotating relative to the rotating jaw 341 under the driving of the roll discharging wheel 51, so that the roll-shaped sheet 84 rotates relative to the rotating jaw 341, and the part (i.e. the narrow rectangular part) of the inner wall of the roll-shaped sheet 84 corresponding to the rotating jaw 341 and the opening-closing jaw 351 can fit the inner wall of the roll-shaped sheet 84.

[0093] As one of the specific embodiments, the rotating jaw 341 is directly or indirectly fixedly connected with a rotating gear 343, and the discharging rack segment 324 capable of engaging with the rotating gear 343 is fixedly arranged on the mounting carrier 9, such as the discharging rack segment 324 being fixed on the jaw fixing disc 32. When the jaw assembly 34 passes through the discharging rack segment 324, the rotating gear 343 engages with the discharging rack segment 324, which can more reliably realize that the rotating jaw 341 rotates relative to the rotating disc 31 while rotating with the rotating disc 31.

[0094] As one of the specific embodiments, the roll discharging wheel 51 is elastic. For example, it is made of silica gel or the like and is elastic. The roll discharging wheel 51 can have a larger friction force on the roll-shaped sheet 84, which can ensure that the roll-shaped sheet 84 is separated from the rotating jaw 341.

[0095] As one of the specific embodiments, the thickness of the roll discharging wheel 51 is greater than the maximum diameter of the cylinder or circular cone formed by the rotating jaw 341 and the opening-closing jaw 351. The roll-shaped sheet 84 can be separated from the rotating jaw 341.

[0096] As one of the specific embodiments, the roll discharging structure 5 further comprises a discharging hopper 52, the discharging hopper 52 comprises a discharging blocking wall 522 and an inclined bottom wall 521 which is inclined relative to the horizontal plane, and an angle is arranged between the discharging blocking wall 522 and the following rotating jaw 341, for example, the discharging blocking wall 522 is perpendicular to the following rotating jaw 341. After the roll-shaped sheet 84 discharged by the roll discharging wheel 51 is blocked by the discharging blocking wall 522, the roll-shaped sheet 84 is conveyed to the output power belt 92 through the inclined bottom wall 521, and the roll-shaped sheet 84 can be prevented from flying everywhere. Generally, the discharging hopper 52 further comprises a guide wall 523 and a blocking wall 529.

[0097] As one of the specific embodiments, the roll discharging structure 5 is provided with a gap 524 which is opposite to the output end of the inclined bottom wall 521 (i.e. the lower end of the inclined bottom wall 521), and a ventilation device (not shown in the figure) such as an exhaust fan is arranged at the gap 524 to blow air to the output end of the inclined bottom wall 521. The roll-shaped sheet 84 can be ensured to be output from the discharging hopper 52.

[0098] The continuous roll forming device further comprises a synchronous driving structure 7, the synchronous driving structure 7 comprises a synchronous driving motor 71, and any at least two of the sheet feeding power wheel 11, the sheet forming cutter 12, the buffer belt 13, the sheet feeding rotating wheel 19 and the rotating disc 31 are synchronously driven by the synchronous driving motor 71, in other words, any at least two of the sheet feeding power wheel 11, the sheet forming cutter 12, the buffer belt 13, the sheet feeding rotating wheel 19 and the rotating disc 31 are driven by the same driving source, which is the synchronous driving motor 71. The dependence on electrical control can be reduced, and the cost can be reduced and the equipment reliability can be improved.

[0099] As shown in Figures 5 and 9, the synchronous driving structure 7 further comprises a sheet feeding synchronous structure 72, a rotating disc synchronous structure 73 and a pawl synchronous structure 74. The sheet feeding synchronous structure 72 comprises a sheet feeding synchronous wheel 721, a sheet feeding synchronous belt 722, a transition belt synchronous wheel 723, a sheet feeding synchronous tensioning wheel 724 and a sheet feeding synchronous transition wheel 725. The rotating disc synchronous structure 73 comprises a rotating disc transmission wheel 731 and a rotating disc driving wheel 732. The pawl synchronous structure 74 comprises a pawl transmission belt 741, a pawl synchronous wheel 742 and a pawl synchronous belt 743.

[0100] The output end of the synchronous driving motor 71 drives a speed reduction output wheel 711 through gears or the like. The speed reduction output wheel 711 is fixedly connected with the sheet feeding rotating wheel 19 to directly drive the sheet feeding rotating wheel 19 to rotate.

[0101] The speed reduction output wheel 711 drives the rotating disc driving wheel 732 through the rotating disc transmission wheel 731 to drive the rotating disc power shaft 319 and the rotating disc 31 to rotate.

[0102] The pawl driving belt 741 drives the pawl synchronous wheel 742 by passing through the turntable driving wheel 732 and the pawl synchronous wheel 742. The pawl synchronous wheel 742 is fixedly connected with the pawl driving shaft 389. For the embodiment with multiple sealing pawls 38, the sealing pawls 38 can also be synchronously driven by the pawl driving shaft 389 through connection by a belt, a synchronous belt, etc.

[0103] The deceleration output wheel 711 drives the upper sheet synchronous wheel 721. The upper sheet synchronous wheel 721 drives the upper sheet output power wheel 149 through a belt, a synchronous belt, etc.

[0104] The upper sheet synchronous wheel 721 drives the sheet forming power wheel 122 and the transition belt synchronous wheel 723 through the upper sheet synchronous belt 722. The transition belt synchronous wheel 723 drives the upper sheet synchronous transition wheel 725 through the upper sheet synchronous belt 722. The upper sheet synchronous transition wheel 725 drives the buffer belt power wheel 139 through a belt, a synchronous belt, etc. The buffer belt power wheel 139 is in gear engagement with the transition power wheel 159.

Claims

1. A continuous roll forming device comprising a sheet feeding device (1), a gluing device (2), a roll forming device (3), a roll discharging structure (5) and a mounting carrier (9) for mounting; characterized in that The sheet feeding device (1) comprises a sheet feeding power wheel (11), a sheet forming cutter (12), a buffer belt (13) and a sheet feeding rotating wheel (19) arranged in sequence, the sheet forming cutter (12) is provided with reciprocating power; the buffer belt (13) is provided with a planar portion, and the planar portion is tangent to the sheet feeding power wheel (11); the planar portion of the buffer belt (13) is provided with negative pressure and horizontal conveying power; the sheet feeding rotating wheel (19) is provided with rotating power and is provided with a sheet feeding suction head (191), the sheet feeding suction head (191) is connected with negative pressure; the sheet feeding suction head (191) can directly or indirectly suck the sheet (82) on the planar portion of the buffer belt (13); the roll forming device (3) comprises a rotating disc (31), a clamping piece assembly (34) and a sheet pressing assembly (36); the rotating disc (31) is provided with rotating power; the clamping piece assembly (34) comprises a following rotating jaw (341) and an opening and closing jaw (351) capable of rotating relative to the following rotating jaw (341); the following rotating jaw (341) and the opening and closing jaw (351) form a cylindrical or circular cone shape, the following rotating jaw (341) is arranged on the rotating disc (31) and rotates relative to the rotating disc (31) as the rotating disc (31) rotates; the sheet pressing assembly (36) comprises a sheet pressing roller (361), the sheet pressing roller (361) changes the distance between the following rotating jaw (341) as the rotating disc (31) rotates; the roll discharging structure (5) comprises a cylindrical roll discharging wheel (51) provided with rotating power; the roll discharging wheel (51) is perpendicular to the following rotating jaw (341) and can abut against the following rotating jaw (341).

2. The continuous roll forming apparatus of claim 1 wherein, The sheet feeding device (1) further comprises a transition belt (15) provided with conveying power; the transition belt (15) comprises a transition upper belt (151) and a transition lower belt (152); both the transition upper belt (151) and the transition lower belt (152) are provided with a planar portion, the planar portion of the transition upper belt (151) and the planar portion of the transition lower belt (152) are in close contact with each other and both overlap with the planar portion of the buffer belt (13) in the conveying direction and are located in the same plane, and the transition upper belt (151) and the transition lower belt (152) are completely staggered with the buffer belt (13) in the width direction when viewed from above.

3. The continuous roll forming apparatus of claim 2 wherein, The sheet feeding device (1) further comprises a sheet feeding output support (141) and a sheet feeding output belt (14) provided with conveying power, the sheet feeding output belt (14) is provided with a planar portion, the planar portion of the sheet feeding output belt (14) is located in the same plane with the planar portion of the transition upper belt (151) and there is an overlapping portion in the conveying direction; the sheet feeding output support (141) abuts or is close to the planar portion of the sheet feeding output belt (14), and a vertical plane passing through the rotating axis of the sheet feeding rotating wheel (19) passes through the planar portion of the sheet feeding output belt (14).

4. The continuous roll forming apparatus of claim 1 wherein, The ratio of the conveying line speed of the upper sheet output belt (14) to the conveying line speed of the transition belt (15) is a constant value greater than one.

5. The continuous roll forming apparatus of claim 1 wherein, The clamping piece assembly (34) further comprises a rotating connecting cylinder (342) and a rotating gear (343) fixedly connected to the rotating clamping jaw (341) and the rotating connecting cylinder (342) at two ends respectively; the clamping piece fixing disc (32) is further fixed on the mounting carrier (9); the clamping piece fixing disc (32) is fixedly provided with a rotating rack segment (321) engaged with the rotating gear (343); and the rotating connecting cylinder (342) is rotatably connected to the rotating disc (31).

6. The continuous roll forming apparatus of claim 5 wherein, The clamping piece assembly (34) further comprises an opening and closing piece (354), a clamping jaw resetting piece (358), and a movable clamping jaw rod (352) provided with a rotating pin (353); the opening and closing piece (354) is provided with a movement turning groove (355) and is linearly slidably connected to the rotating connecting cylinder (342); the rotating pin (353) is embedded in the movement turning groove (355); the movable clamping jaw rod (352) is arranged in the rotating connecting cylinder (342) and can rotate relative to the rotating connecting cylinder (342); the clamping jaw resetting piece (358) abuts against the rotating connecting cylinder (342) and the opening and closing piece (354) respectively, so that the opening and closing piece (354) has a tendency to move away from the rotating clamping jaw (341); the clamping piece fixing disc (32) is provided with a jaw loosening boss (322) arranged along the axial line direction of the rotating disc (31), and the jaw loosening boss (322) can directly or indirectly abut against the opening and closing piece (354) to make the opening and closing piece (354) move axially.

7. The continuous roll forming apparatus of claim 1 wherein, The tablet pressing assembly (36) further comprises a tablet pressing control shaft (362), a tablet pressing extension arm (363), and a tablet pressing sliding block (364) fixedly connected in sequence, and the tablet pressing control shaft (362) is rotatably connected to the rotating disc (31); the tablet pressing roller (361) is directly or indirectly connected to the tablet pressing control shaft (362), and a spacing is provided between the axial line of the tablet pressing control shaft (362) and the tablet pressing sliding block (364) and the tablet pressing roller (361); the tablet pressing fixing disc (33) is further fixed on the mounting carrier (9), the tablet pressing fixing disc (33) is provided with an annular tablet pressing sliding groove (331), the tablet pressing sliding groove (331) comprises an abutting segment (332) and a spacing segment (333), the abutting segment (332) and the spacing segment (333) have a radius difference, and the tablet pressing sliding block (364) is embedded in the tablet pressing sliding groove (331).

8. The continuous roll forming apparatus of claim 1 wherein the roll In the process of abutting the ejection wheel (51) against the rotating clamping jaw (341), the opening and closing clamping jaw (351) is in an open state relative to the rotating clamping jaw (341).

9. The continuous roll forming apparatus of claim 8, wherein the roll In the process of abutting the ejection wheel (51) against the rotating clamping jaw (341), the rotating clamping jaw (341) rotates relative to the rotating disc (31) while rotating with the rotating disc (31).

10. The continuous roll forming apparatus of any one of claims 1-9, wherein, The synchronous driving structure (7) further comprises a synchronous driving motor (71), and the synchronous driving motor (71) synchronously drives any at least two of the upper sheet driving wheel (11), the sheet forming cutter (12), the buffer belt (13), the upper sheet rotating wheel (19), and the rotating disc (31).

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