CN214359202U - Steel belt traction system capable of realizing non-stop reel change - Google Patents

Abstract

The utility model discloses a steel belt traction system capable of realizing non-stop coil changing, which comprises a first unwinding device, a second unwinding device, a first drafting device, a second drafting device, a seam welding device, a pressing device and a stock unit; wherein first unwinding device and first draft gear link up in proper order, second unwinding device and second draft gear link up in proper order, first draft gear and second draft gear set up simultaneously in seam welding set upper reaches and with seam welding set link up, seam welding set, press device and stock unit link up in proper order.

Description

Steel belt traction system capable of realizing non-stop reel change

Technical Field

The utility model relates to a steel band processing equipment technical field especially relates to a can realize not shutting down steel band traction system who trades a roll.

Background

In the processing process of the hot dip galvanized steel strip, the steel strip needs to be unreeled firstly and led into a production line. Because the length of steel band reel is limited, unreel when a coil of strip and need change the reel after accomplishing, need carry out the temporary halt to the production line when the steel band changes the book among the prior art, treat that the coil of strip moves once more after changing, its process can lead to production flow to interrupt, is unfavorable for improving production efficiency.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a novel structure reliably can realize not shutting down changing the steel band traction system that can realize not shutting down roll changing of steel band reel.

In order to realize the above purpose, the utility model discloses the technical scheme who adopts is: a steel belt traction system capable of realizing non-stop coil change comprises a first unwinding device, a second unwinding device, a first drafting device, a second drafting device, a seam welding device, a pressing device and a stock unit; the first unwinding device and the first drafting device are sequentially connected, the second unwinding device and the second drafting device are sequentially connected, the first drafting device and the second drafting device are simultaneously arranged at the upstream of the seam welding device and connected with the seam welding device, and the seam welding device, the pressing device and the material storage unit are sequentially connected; the first unwinding device and the second unwinding device respectively comprise a rotating shaft, a shaft seat, a movable limiting rod and a movable guide pinch roller, wherein the shaft seat and the movable limiting rod are respectively arranged at two ends of the rotating shaft, the shaft seat is rotatably connected with the rotating shaft, the movable limiting rod comprises a limiting rod main body, a limiting rod support, a first connecting rod and a first driving hydraulic cylinder, one end of the limiting rod main body is pivoted with the limiting rod support, a semicircular groove matched with the rotating shaft is formed in the free end of the limiting rod main body, one end of the first connecting rod is pivoted with the limiting rod support and is in sliding fit with the limiting rod support, the other end of the first connecting rod is pivoted with the middle part of the limiting rod main body, one end of the first driving hydraulic cylinder is pivoted with the limiting rod support, and the other end of the first driving hydraulic cylinder is pivoted with the middle part of the first connecting rod; the movable guide pressure wheel comprises a swing arm, a guide pressure wheel rotationally connected to the swing arm, a swing arm support pivoted with the swing arm and a second drive hydraulic cylinder, one end of the second drive hydraulic cylinder is pivoted with the swing arm support, and the other end of the second drive hydraulic cylinder is pivoted with the swing arm; the first drafting device and the second drafting device respectively comprise a drafting device bracket, a lower drafting roller rotatably connected to the lower side of the drafting device bracket, a swing bracket pivoted on the drafting device bracket, an upper drafting roller rotatably connected to the swing bracket and vertically opposite to the lower drafting roller, a third driving hydraulic cylinder driving the swing bracket to swing, and a drafting driving mechanism driving the upper drafting roller to rotate.

The utility model has the advantages that: the utility model discloses a can realize not shutting down the steel band traction system who changes the book, can realize not shutting down and change the steel band reel. Specifically, the first unwinding device and the second unwinding device alternately unwind, and correspondingly the first drafting device and the second drafting device alternately draw the steel strip into the seam welding device, and the seam welding device can weld the head and the tail of the steel strip before and after the coil change so as to weld the two sections of the steel strip into a whole and enable the two sections of the steel strip to be continuously drafted; the material storage unit can store a certain length of steel strip on line, and the stored steel strip is released in the process of steel strip coil change and welding so that the downstream process equipment can continuously keep running without being influenced by coil change, thereby realizing the continuous running of the processing production line and improving the efficiency.

Preferably, the drafting driving mechanism comprises a first driven gear coaxially connected with the upper drafting roller, a first driving gear, a transmission chain in transmission connection with the first driven gear and the first driving gear, and a first speed reducing motor coaxially connected with the first driving gear. The first gear motor can drive the first driving gear to rotate and drive the upper drafting roller to run through the transmission action of the transmission chain.

Preferably, the end part of the rotating shaft on the same side as the movable limiting rod is rotatably connected with a roller matched with the semicircular groove. The rolling contact between the rotating shaft and the movable limiting rod can be realized by utilizing the roller to reduce the abrasion.

Preferably, the seam welding device includes a first material clamping mechanism, a second material clamping mechanism and a seam welding mechanism arranged between the first material clamping mechanism and the second material clamping mechanism, wherein the first material clamping mechanism and the second material clamping mechanism include a material clamping mechanism frame, a lower material clamping mechanism holder fixedly mounted on the material clamping mechanism frame, an upper material clamping mechanism holder arranged on the upper side of the lower material clamping mechanism holder, and a material pressing driving device for driving the upper material clamping mechanism holder to press down, and the first material clamping mechanism further includes a longitudinal adjusting mechanism and a transverse adjusting mechanism for driving the material clamping mechanism frame of the first material clamping mechanism to move longitudinally and transversely respectively. The first clamping mechanism is provided with a longitudinal adjusting mechanism and a transverse adjusting mechanism, when the device is used, the first clamping mechanism can be used for clamping a steel belt, and then the longitudinal adjusting mechanism and the transverse adjusting mechanism can be used for respectively longitudinally adjusting and transversely adjusting the position of the frame of the clamping mechanism, so that the steel belt on the first clamping mechanism is aligned with the steel belt on the second clamping mechanism, the steel belt can be prevented from being offset and dislocated in the clamping process, and the device is favorable for improving the processing precision.

Preferably, the transverse adjusting mechanism comprises a transverse sliding seat, a transverse guide rail in sliding fit with the transverse sliding seat, and a transverse screw rod in threaded connection with the transverse sliding seat; the longitudinal adjusting mechanism comprises a longitudinal sliding seat, a longitudinal guide rail in sliding fit with the longitudinal sliding seat, and a longitudinal screw rod in threaded connection with the longitudinal sliding seat; the transverse sliding seat carries the material clamping mechanism rack of the first material clamping mechanism, the transverse guide rail is fixedly installed on the longitudinal sliding seat, and hand wheels are arranged at the end parts of the transverse screw rod and the longitudinal screw rod. Because the transverse screw rod and the transverse sliding seat and the longitudinal screw rod and the longitudinal sliding seat are connected by threads to form a ball screw rod pair, the transverse screw rod and the longitudinal screw rod are rotated by the hand wheel to drive the transverse sliding seat and the longitudinal sliding seat to respectively slide along the transverse direction and the longitudinal direction, so that the position of the frame of the material clamping mechanism is adjusted.

Preferably, the seam welding mechanism includes an upper seam welding head, a lower seam welding head and a seam welding driving mechanism for driving the upper seam welding head and the lower seam welding head to synchronously and longitudinally move, the upper seam welding head and the lower seam welding head are both rotatably connected with seam welding wheels, the seam welding driving mechanism includes a first driving screw rod which is in threaded connection with the upper seam welding head and longitudinally extends, a second driving screw rod which is in threaded connection with the lower seam welding head and longitudinally extends, a first transmission gear which is coaxially connected with the first driving screw rod, a second transmission gear which is coaxially connected with the second driving screw rod, a second driving gear and a second reduction motor, wherein the second reduction motor is connected with the second driving gear, and the second driving gear is simultaneously meshed with the first transmission gear and the second transmission gear. When in welding, the seam welding wheels of the upper seam welding head and the lower seam welding head are respectively in rolling contact with the upper surface and the lower surface of the steel strip and are driven by the seam welding driving mechanism to move along the splicing seam between the two sections of steel strips so as to realize seam welding of the two sections of steel strips, and because a second driving gear in the seam welding driving mechanism is simultaneously meshed with the first transmission gear and the second transmission gear, the first transmission gear and the second transmission gear are meshed and synchronously rotated so as to respectively drive the first driving screw rod and the second driving screw rod to synchronously rotate and finally drive the upper seam welding head and the lower seam welding head to synchronously move.

Preferably, the pressing device comprises an upper clamping seat of the pressing device, a lower clamping seat of the pressing device and a pressing lifting driving device for driving the upper clamping seat to descend. The clamping device can be used for clamping the steel strip in the steel strip reel changing process, so that the tail end of the steel strip is fixed, and the steel strip stored by the material storage unit is released and drafted in the reel changing process.

Preferably, the material storage unit comprises a fixed roller device, a movable roller device, a translation guide rail for guiding the movable roller device to translate, and a translation driving mechanism for driving the movable roller device to translate towards the direction back to the fixed roller device; the fixed roller device comprises a fixed support and a first roller set arranged on the fixed support, the movable roller device comprises a movable support and a second roller set arranged on the movable support, casters are further arranged at the bottom of the movable support, and the first roller set and the second roller set are matched to guide a steel belt to draft between the fixed roller device and the movable roller device; the translation driving mechanism comprises a hoisting shaft, a first traction cable and a third speed reduction motor for driving the hoisting shaft to rotate, one end of the first traction cable is connected with the movable support, and the other end of the first traction cable winds the hoisting shaft. The first roller set and the second roller set can guide the steel strip to be drawn between the first roller set and the second roller set, so that the steel strip can be stored between the first roller set and the second roller set to achieve the effect of material storage. In the normal working process of the steel strip processing line, the translation driving mechanism can drive the movable roller device to move back to the fixed roller device, so that the distance between the movable roller device and the fixed roller device is increased, and the material storage length of the steel strip is increased. When the steel band is changed to needs, the in-process steel band processing line that changes the book keeps moving, and the steel band of storing between first roller set and the second roller set is continuously carried to low reaches simultaneously, and the movable roller device is translated to fixed roller device gradually under the draft of steel band, makes the steel band of storing released the use through above mode to realize the steel band change of book under the circumstances of not shutting down, ensure that the processing line can not receive the change of book influence and continuously move the raising the efficiency.

Preferably, the material storage unit further comprises a balancing weight, a balancing weight support which forms vertical sliding fit with the balancing weight, a second traction cable and a pulley assembly for guiding the traction cable, wherein one end of the second traction cable is connected with the movable support, and the other end of the traction cable is connected with the balancing weight so that the balancing weight forms a pulling force towards the fixed roller device to the movable support. The balancing weight can exert the pulling force towards fixed running roller device to the movable support, reduces the steel band pulling and connects the required pulling force of movable support to reduce the tension of steel band and prevent that steel band tension is too big to cause deformation or even fracture.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the first unwinding device/the second unwinding device of the present invention in an unwinding state.

Fig. 3 is a schematic structural diagram of the first unwinding device/the second unwinding device in the reel changing state of the present invention.

Fig. 4 is a schematic structural diagram of the first/second drafting devices of the present invention in a standby state.

Fig. 5 is a schematic structural diagram of the first/second drafting device of the present invention in an operating state.

Fig. 6 is a schematic structural view of the seam welding apparatus according to the present invention.

Fig. 7 is a schematic structural diagram of the first material clamping mechanism of the present invention.

Fig. 8 is a schematic structural view of the second material clamping mechanism of the present invention.

Fig. 9 is a side view of the seam welding mechanism of the present invention.

Fig. 10 is a front view of the seam welding mechanism of the present invention.

Fig. 11 is a schematic structural view of the pressing device of the present invention.

Fig. 12 is a schematic structural diagram of the stock unit of the present invention in the stock state.

Fig. 13 is a schematic structural view of the stock unit of the present invention in a reel change state.

Fig. 14 is a schematic structural view of the fixed roller device of the present invention.

Fig. 15 is a schematic structural view of the movable roller device of the present invention.

Fig. 16 is a schematic structural view of the translation driving mechanism of the present invention.

Wherein, 1 a-a first unreeling device, 1 b-a second unreeling device, 11-a rotating shaft, 111-a roller, 12-a shaft seat, 131-a limiting rod body, 1311-a semicircular groove, 132-a limiting rod bracket, 133-a first connecting rod, 134-a first driving hydraulic cylinder, 141-a swinging arm, 142-a guiding pinch roller, 143-a swinging arm bracket, 144-a second driving hydraulic cylinder, 2 a-a first drafting device, 2 b-a second drafting device, 21-a drafting device bracket, 22-a lower drafting roller, 23-a swinging bracket, 24-an upper drafting roller, 25-a third driving hydraulic cylinder, 261-a first driven gear, 262-a first driving gear, 263-a transmission chain, 264-a first speed reducing motor and 3-a seam welding device, 31 a-a first clamping mechanism, 31 b-a second clamping mechanism, 311-a clamping mechanism frame, 312-a clamping mechanism lower clamping seat, 313-a clamping mechanism upper clamping seat, 314-a pressing driving device, 3151-a longitudinal sliding seat, 3152-a longitudinal guide rail, 3153-a longitudinal screw rod, 3161-a transverse sliding seat, 3162-a transverse guide rail, 3163-a transverse screw rod, 317-a hand wheel, 32-a seam welding mechanism, 321 a-an upper seam welding head, 321 b-a lower seam welding head, 3211-a seam welding wheel, 3221-a first driving screw rod, 3222-a second driving screw rod, 3223-a first transmission gear, 3224-a second transmission gear, 3225-a second driving gear, 3226-a second speed reducing motor, 4-a pressing device, 41-a pressing device upper clamping seat, 42-a lower clamping seat of a material pressing device, 43-a material pressing lifting driving device, 5-a material storage unit, 51-a fixed roller device, 511-a fixed support, 512-a first roller set, 52-a movable roller device, 521-a movable support, 522-a second roller set, 523-a caster, 53-a translation guide rail, 54-a translation driving mechanism, 541-a winch shaft, 542-a first traction cable, 543-a third speed reducing motor, 55-a balancing weight, 56-a balancing weight support, 57-a second traction cable and 58-a pulley assembly.

Detailed Description

The claimed technical solution of the present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 16, the steel strip traction system capable of realizing non-stop coil change in the embodiment includes a first unwinding device 1a, a second unwinding device 1b, a first drafting device 2a, a second drafting device 2b, a seam welding device 3, a pressing device 4, and a stock unit 5.

Wherein first unwinding device 1a and first draft gear 2a link up in proper order, second unwinding device 1b and second draft gear 2b link up in proper order, first draft gear 2a and second draft gear 2b set up simultaneously in seam welding set 3 upper reaches and with seam welding set 3 link up, seam welding set 3, press device 4 and stock unit 5 link up in proper order.

First unwinding device 1a and second unwinding device 1b all including pivot 11, axle bed 12, activity gag lever post and activity direction pinch roller, axle bed 12 and activity gag lever post set up respectively in 11 both ends of pivot, wherein axle bed 12 rotates with pivot 11 to be connected, the activity gag lever post includes gag lever post main part 131, gag lever post support 132, first connecting rod 133 and first drive pneumatic cylinder 134, wherein the one end and the gag lever post support 132 pin joint of gag lever post main part 131, the free end of this gag lever post main part 131 is provided with the half slot 1311 of cooperation pivot 11, in this embodiment pivot 11 is connected with the cooperation in the tip rotation with activity gag lever post homonymy the gyro wheel 111 of half slot 1311. One end of the first connecting rod 133 is pivotally connected to and slidably engaged with the limiting rod bracket 132, the other end of the first connecting rod 133 is pivotally connected to the middle portion of the limiting rod main body 131, one end of the first driving hydraulic cylinder 134 is pivotally connected to the limiting rod bracket 132, and the other end of the first driving hydraulic cylinder 134 is pivotally connected to the middle portion of the first connecting rod 133. The movable guiding pressure wheel comprises a swing arm 141, a guiding pressure wheel 142 rotationally connected to the swing arm 141, a swing arm support 143 pivoted with the swing arm 141, and a second driving hydraulic cylinder 144, wherein one end of the second driving hydraulic cylinder 144 is pivoted with the swing arm support 143, and the other end of the second driving hydraulic cylinder 144 is pivoted with the swing arm 141.

The first drafting device 2a and the second drafting device 2b each comprise a drafting device bracket 21, a lower drafting roller 22 rotatably connected to the lower side of the drafting device bracket 21, a swing bracket 23 pivotally connected to the drafting device bracket 21, an upper drafting roller 24 rotatably connected to the swing bracket 23 and vertically opposite to the lower drafting roller 22, a third driving hydraulic cylinder 25 for driving the swing bracket 23 to swing, and a drafting driving mechanism for driving the upper drafting roller 24 to rotate. In this embodiment, the drafting driving mechanism includes a first driven gear 261 coaxially connected to the upper drafting roller 24, a first driving gear 262, a transmission chain 263 for driving and connecting the first driven gear 261 and the first driving gear 262, and a first speed reducing motor 264 coaxially connected to the first driving gear 262.

The seam welding device 3 comprises a first clamping mechanism 31a, a second clamping mechanism 31b and a seam welding mechanism 32 arranged between the first clamping mechanism 31a and the second clamping mechanism 31b, wherein the first clamping mechanism 31a and the second clamping mechanism 31b respectively comprise a clamping mechanism frame 311, a clamping mechanism lower clamping seat 312 fixedly arranged on the clamping mechanism frame 311, a clamping mechanism upper clamping seat 313 arranged on the upper side of the clamping mechanism lower clamping seat 312 and a material pressing driving device 314 driving the clamping mechanism upper clamping seat 313 to press downwards, and the first clamping mechanism 31a further comprises a longitudinal adjusting mechanism and a transverse adjusting mechanism for driving the clamping mechanism frame 311 of the first clamping mechanism 31a to move longitudinally and transversely respectively.

The transverse adjusting mechanism comprises a transverse sliding seat 3161, a transverse guide rail 3162 in sliding fit with the transverse sliding seat 3161, and a transverse screw 3163 in threaded connection with the transverse sliding seat 3161; the longitudinal adjusting mechanism comprises a longitudinal sliding seat 3151, a longitudinal guide rail 3152 in sliding fit with the longitudinal sliding seat 3151, and a longitudinal screw 3153 in threaded connection with the longitudinal sliding seat 3151; the transverse sliding seat 3161 carries the material clamping mechanism frame 311 of the first material clamping mechanism 31a, the transverse guide rail 3162 is fixedly mounted on the longitudinal sliding seat 3151, and hand wheels 317 are arranged at the end parts of the transverse screw rod 3163 and the longitudinal screw rod 3153.

The seam welding mechanism 32 comprises an upper seam welding head 321a, a lower seam welding head 321b and a seam welding driving mechanism for driving the upper seam welding head 321a and the lower seam welding head 321b to synchronously and longitudinally move, the upper and lower welding heads 321a and 321b are rotatably connected with a welding wheel 3211, the seam welding driving mechanism comprises a first driving screw rod 3221 which is in threaded connection with the upper seam welding head 321a and extends longitudinally, a second driving screw rod 3222 which is in threaded connection with the lower seam welding head 321b and extends longitudinally, a first transmission gear 3223 which is coaxially connected with the first driving screw rod 3221, a second transmission gear 3224 which is coaxially connected with the second driving screw rod 3222, a second driving gear 3225 and a second speed reducing motor 3226, the second reducing motor 3226 is connected to a second driving gear 3225, and the second driving gear 3225 is engaged with the first driving gear 3223 and the second driving gear 3224 at the same time.

The pressing device 4 includes an upper holder 41 of the pressing device, a lower holder 42 of the pressing device, and a pressing elevation driving device 43 for driving the upper holder to descend.

The material storage unit 5 comprises a fixed roller device 51, a movable roller device 52, a translation guide rail 53 for guiding the movable roller device 52 to translate, a translation driving mechanism 54 for driving the movable roller device 52 to translate towards the direction back to the fixed roller device 51, a balancing weight 55, a balancing weight support 56 which forms vertical sliding fit with the balancing weight 55, a second traction cable 57 and a pulley assembly 58 for guiding the traction cable. The fixed roller device 51 comprises a fixed bracket 511 and a first roller set 512 arranged on the fixed bracket 511, the movable roller device 52 comprises a movable bracket 521 and a second roller set 522 arranged on the movable bracket 521, the bottom of the movable bracket 521 is also provided with a caster 523, and the first roller set 512 and the second roller set 522 are matched to guide a steel belt to be drawn between the fixed roller device 51 and the movable roller device 52; the translational driving mechanism 54 includes a winding shaft 541, a first traction cable 542, and a third deceleration motor 543 for driving the winding shaft 541 to rotate, wherein one end of the first traction cable 542 is connected to the movable bracket 521, and the other end of the first traction cable 542 is wound around the winding shaft 541. One end of the second pulling cable 57 is connected to the movable bracket 521, and the other end of the pulling cable is connected to the weight 55 so that the weight 55 forms a pulling force towards the fixed roller device 51 to the movable bracket 521.

The working principle of the embodiment is as follows:

the first unwinding device 1a and the second unwinding device 1b alternately unwind, when the coil needs to be changed, the first driving hydraulic cylinder 134 drives the limiting rod main body 131 to swing downwards so that the limiting rod main body 131 no longer limits the steel belt reel on the rotating shaft 11, and at the moment, the old reel can be taken out of the rotating shaft 11 and replaced by a new steel belt reel. After replacement, the first driving hydraulic cylinder 134 drives the limiting rod main body 131 to reset and swing back to limit the winding drum again.

When the first unwinding device 1a or the second unwinding device 1b performs reel changing and unwinding respectively, the corresponding first drafting device 2a or the second drafting device 2b drives the winding drum to unwind, specifically, the third driving hydraulic cylinder 25 drives the swing bracket 23 to swing downward, so that the upper drafting roller 24 cooperates with the lower drafting roller 22 to compress the steel belt, and the upper drafting roller 24 is driven by the drafting driving mechanism to rotate, so that the steel belt can be driven to draft to realize unwinding. Meanwhile, the second driving hydraulic cylinder 144 of the first unwinding device 1a or the second unwinding device 1b drives the swing arm 141 to swing downwards, so that the guide pinch roller 142 and the steel belt winding drum are in rolling contact to guide the steel belt to unwind.

After the coiled strip of the steel strip is replaced, the strip tail of the previous steel strip and the strip head of the next steel strip are respectively drawn into the first clamping mechanism 31a and the second clamping mechanism 31b, an operator firstly simply aligns and positions the strip head and the strip tail of the steel strip, and then the upper clamping seat 313 of the clamping mechanism descends to compress the steel strip under the driving of the clamping driving device.

The position of the steel strip is corrected after the steel strip is pressed tightly, the steel strip on the first clamping mechanism 31a can be driven to move transversely or longitudinally by rotating the transverse screw 3163 or the longitudinal screw 3153, so that the position of the steel strip is corrected in a state of clamping the steel strip, and the two steel strips are aligned with each other.

And then, welding the steel strip, wherein the seam welding wheels 3211 of the upper seam welding head 321a and the lower seam welding head 321b respectively make rolling contact with the upper surface and the lower surface of the steel strip during welding and move along a splicing seam between two steel strips by the driving of a seam welding driving mechanism, so as to realize seam welding of the two steel strips, and because the second driving gear 3225 in the seam welding driving mechanism is simultaneously meshed with the first driving gear 3223 and the second driving gear 3224, the first driving gear 3223 and the second driving gear 3224 are meshed and synchronously rotated so as to respectively drive the first driving screw rod 3221 and the second driving screw rod 3222 to synchronously rotate, and finally drive the upper seam welding head 321a and the lower seam welding head 321b to synchronously move.

The clamping device can be used for clamping and fixing the tail end of the steel belt in the steel belt reel changing process, so that the tail end of the steel belt is prevented from being driven to the downstream.

The steel strip stored between the first roller set 512 and the second roller set 522 is continuously conveyed to the downstream, the movable roller device 52 gradually translates towards the fixed roller device 51 under the traction driving of the steel strip, the counterweight 55 can be used for applying a pulling force towards the fixed roller device 51 to the movable support 521 in the process, the pulling force required by the movable support 521 due to the pulling of the steel strip is reduced, and therefore the tension of the steel strip is reduced to prevent the steel strip from being deformed or even broken due to the overlarge tension. The stored steel belt is released for use through the mode, so that the steel belt is changed without stopping the machine, and the continuous operation of the processing line is ensured to improve the efficiency without being influenced by the change of the steel belt. In the normal working process of the steel strip processing line, the translation driving mechanism 54 can drive the movable roller device 52 to move back to the fixed roller device 51, so that the distance between the movable roller device and the fixed roller device is increased, the material storage length of the steel strip is increased, and the steel strip is stored.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make further changes and modifications to the invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims (9)

1. A steel belt traction system capable of realizing non-stop coil change is characterized by comprising a first unwinding device (1 a), a second unwinding device (1 b), a first drafting device (2 a), a second drafting device (2 b), a seam welding device (3), a pressing device (4) and a stock unit (5); the first unwinding device (1 a) is sequentially connected with the first drafting device (2 a), the second unwinding device (1 b) is sequentially connected with the second drafting device (2 b), the first drafting device (2 a) and the second drafting device (2 b) are simultaneously arranged at the upstream of the seam welding device (3) and connected with the seam welding device (3), and the seam welding device (3), the pressing device (4) and the material storage unit (5) are sequentially connected; the first unreeling device (1 a) and the second unreeling device (1 b) respectively comprise a rotating shaft (11), a shaft seat (12), a movable limiting rod and a movable guide pinch roller, the shaft seat (12) and the movable limiting rod are respectively arranged at two ends of the rotating shaft (11), the shaft seat (12) is rotatably connected with the rotating shaft (11), the movable limiting rod comprises a limiting rod main body (131), a limiting rod support (132), a first connecting rod (133) and a first driving hydraulic cylinder (134), one end of the limiting rod main body (131) is pivoted with the limiting rod support (132), a semicircular groove (1311) matched with the rotating shaft (11) is arranged at the free end of the limiting rod main body (131), one end of the first connecting rod (133) is pivoted with the limiting rod support (132), the other end of the first connecting rod (133) is pivoted with the middle part of the limiting rod main body (131), one end of the first driving hydraulic cylinder (134) is pivoted with the limiting rod support (132), the other end of the first driving hydraulic cylinder (134) is pivoted with the middle part of the first connecting rod (133); the movable guide pressure wheel comprises a swing arm (141), a guide pressure wheel (142) rotationally connected to the swing arm (141), a swing arm support (143) pivoted with the swing arm (141), and a second driving hydraulic cylinder (144), one end of the second driving hydraulic cylinder (144) is pivoted with the swing arm support (143), and the other end of the second driving hydraulic cylinder (144) is pivoted with the swing arm (141); the first drafting device (2 a) and the second drafting device (2 b) respectively comprise a drafting device bracket (21), a lower drafting roller (22) rotationally connected to the lower side of the drafting device bracket (21), a swinging bracket (23) pivoted on the drafting device bracket (21), an upper drafting roller (24) rotationally connected to the swinging bracket (23) and vertically opposite to the lower drafting roller (22), a third driving hydraulic cylinder (25) driving the swinging bracket (23) to swing, and a drafting driving mechanism driving the upper drafting roller (240) to rotate.

2. A steel strip traction system capable of realizing non-stop reel change according to claim 1, characterized in that: the drafting driving mechanism comprises a first driven gear (261) coaxially connected with the upper drafting roller (24), a first driving gear (262), a transmission chain (263) in transmission connection with the first driven gear (261) and the first driving gear (262), and a first speed reducing motor (264) coaxially connected with the first driving gear (262).

3. A steel strip traction system capable of realizing non-stop reel change according to claim 1, characterized in that: the end part of the rotating shaft (11) on the same side with the movable limiting rod is rotatably connected with a roller (111) matched with the semicircular groove (1311).

4. A steel strip traction system capable of realizing non-stop reel change according to claim 1, characterized in that: the seam welding device (3) comprises a first clamping mechanism (31 a), a second clamping mechanism (31 b) and a seam welding mechanism (32) arranged between the first clamping mechanism (31 a) and the second clamping mechanism (31 b), wherein the first clamping mechanism (31 a) and the second clamping mechanism (31 b) respectively comprise a clamping mechanism frame (311), a clamping mechanism lower clamping seat (312) fixedly arranged on the clamping mechanism frame (311), a clamping mechanism upper clamping seat (313) arranged on the upper side of the clamping mechanism lower clamping seat (312) and a pressing driving device (314) for driving the clamping mechanism upper clamping seat (313) to press downwards, the first material clamping mechanism (31 a) further comprises a longitudinal adjusting mechanism and a transverse adjusting mechanism which are used for driving a material clamping mechanism rack (311) of the first material clamping mechanism (31 a) to move longitudinally and transversely respectively.

5. A steel strip traction system capable of realizing non-stop reel change according to claim 4, characterized in that: the transverse adjusting mechanism comprises a transverse sliding seat (3161), a transverse guide rail (3162) in sliding fit with the transverse sliding seat (3161), and a transverse screw rod (3163) in threaded connection with the transverse sliding seat (3161); the longitudinal adjusting mechanism comprises a longitudinal sliding seat (3151), a longitudinal guide rail (3152) in sliding fit with the longitudinal sliding seat (3151), and a longitudinal screw rod (3153) in threaded connection with the longitudinal sliding seat (3151); the transverse sliding seat (3161) carries a material clamping mechanism rack (311) of the first material clamping mechanism (31 a), the transverse guide rail (3162) is fixedly installed on the longitudinal sliding seat (3151), and hand wheels (317) are arranged at the end parts of the transverse screw rod (3163) and the longitudinal screw rod (3153).

6. A steel strip traction system capable of realizing non-stop reel change according to claim 4, characterized in that: the seam welding mechanism (32) comprises an upper seam welding head (321 a), a lower seam welding head (321 b) and a seam welding driving mechanism for driving the upper seam welding head (321 a) and the lower seam welding head (321 b) to synchronously and longitudinally move, the upper seam welding head (321 a) and the lower seam welding head (321 b) are both rotatably connected with a seam welding wheel (3211), the seam welding driving mechanism comprises a first driving screw rod (3221) which is in threaded connection with the upper seam welding head (321 a) and longitudinally extends, a second driving screw rod (3222) which is in threaded connection with the lower seam welding head (321 b) and longitudinally extends, a first transmission gear (3223) which is coaxially connected with the first driving screw rod (3221), a second transmission gear (3224) which is coaxially connected with the second driving screw rod (3222), a second driving gear (3225) and a second reduction motor (3226), wherein the second driving gear (3226) is connected with the second driving gear (3225), the second driving gear (3225) is simultaneously meshed with the first transmission gear (3223) and the second transmission gear (3224).

7. A steel strip traction system capable of realizing non-stop reel change according to claim 1, characterized in that: the pressing device (4) comprises an upper clamping seat (41) of the pressing device, a lower clamping seat (42) of the pressing device and a pressing lifting driving device (43) for driving the upper clamping seat to descend.

8. A steel strip traction system capable of realizing non-stop reel change according to claim 1, characterized in that: the material storage unit (5) comprises a fixed roller device (51), a movable roller device (52), a translation guide rail (53) for guiding the movable roller device (52) to translate, and a translation driving mechanism (54) for driving the movable roller device (52) to translate towards the direction back to the fixed roller device (51); the fixed roller device (51) comprises a fixed support (511) and a first roller set (512) arranged on the fixed support (511), the movable roller device (52) comprises a movable support (521) and a second roller set (522) arranged on the movable support (521), casters (523) are further arranged at the bottom of the movable support (521), and the first roller set (512) and the second roller set (522) are matched to guide a steel belt to be drawn between the fixed roller device (51) and the movable roller device (52); the translation driving mechanism (54) comprises a winding shaft (541), a first traction cable (542) and a third speed reduction motor (543) for driving the winding shaft (541) to rotate, one end of the first traction cable (542) is connected with the movable support (521), and the other end of the first traction cable (542) winds the winding shaft (541).

9. A steel strip traction system capable of realizing non-stop reel change according to claim 8, characterized in that: the material storage unit (5) further comprises a balancing weight (55), a balancing weight support (56) which is in vertical sliding fit with the balancing weight (55), a second traction cable (57) and a pulley assembly (58) used for guiding the traction cable, wherein one end of the second traction cable (57) is connected with the movable support (521), and meanwhile, the other end of the traction cable is connected with the balancing weight (55) so that the balancing weight (55) forms a pulling force towards the fixed roller device (51) for the movable support (521).

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