Automatic feeding and unwinding mechanism for coiled tube blanks

Abstract

The present invention discloses an automatic feeding and unwinding mechanism for coiled pipe blanks, which belongs to the field of coiled pipe processing equipment and realizes automated operation. The automatic feeding and unwinding mechanism for coiled pipe blanks of the present invention comprises: a material rack, wherein two trusses are arranged on the material rack, a pipe material stacking area is arranged on the side of the material rack, and a pipe material processing area is arranged below the two trusses; and a walking trolley, which is slidably installed on the two trusses and is used to transport the pipe material from the pipe material stacking area to the pipe material processing area; and an unwinding device, which is located in the pipe material processing area and comprises an uncoiler; and a pipe material turning and transmitting device, which is located in the pipe material processing area and comprises a pipe material turning machine and a feeding trolley, wherein the pipe material turning machine turns the pipe material moved by the walking trolley by 90 degrees and then transports the pipe material to the uncoiler through the feeding trolley.

Description

[Technical field]

[0001] The invention relates to the field of coil processing equipment, in particular to an automatic feeding and unwinding mechanism for coil blanks. [Background technology]

[0002] Coiled pipes need to be unwound before use. In the prior art, pipes are usually manually transported to unwinding machines for unwinding, which is inefficient and requires a lot of manpower. In addition, manual transportation of pipes can cause significant damage to the pipes and is prone to safety accidents.

[0003] In order to reduce manpower input and improve production efficiency, equipment that can be operated automatically is needed, that is, the transportation, loading and unwinding of pipe materials can be automatically operated on one device, and only staff need to be arranged to observe. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and propose an automatic feeding and unwinding mechanism for coiled tube blanks to realize automated operation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The automatic feeding and unwinding mechanism for coiled tube blanks includes:

[0007] A material rack, wherein two trusses are arranged on the material rack, a pipe material stacking area is arranged on the side of the material rack, and a pipe material processing area is arranged below the two trusses; and,

[0008] A traveling trolley is slidably mounted on the two trusses and is used to transport pipes from the pipe stacking area to the pipe processing area; and,

[0009] an uncoiling device, located in the tube material processing area, comprising an uncoiling machine; and

[0010] The tube turning and transmission device is located in the tube processing area and includes a tube turning machine and a loading trolley. The tube turning machine turns the tube moved by the walking trolley by 90 degrees and then transports the tube to the uncoiler through the loading trolley.

[0011] The present invention proposes an automatic feeding and unwinding mechanism for coiled pipe blanks, which automatically extracts pipe materials through a walking trolley and sends them to a pipe processing area. In this process, no personnel are required to lift and transport the pipe materials, thereby reducing manpower input. The pipe materials lifted by the walking trolley are placed on a pipe turning machine, and after the pipe materials are turned over by the pipe turning machine, the placement direction of the pipe materials is changed. The feeding trolley transports the turned pipe materials toward the unwinding machine to feed the pipe materials, and then the unwinding machine performs an unwinding operation. The entire process can realize automatic feeding and unwinding operations of the pipe materials by setting the displacement distance of the walking trolley, the turning time of the pipe turning machine, the displacement distance of the feeding trolley, etc., thereby reducing manpower input and the work intensity of the staff and improving the processing efficiency.

[0012] Furthermore, the two trusses are provided with a first slide rail, the first slide rail includes a track and a chain, the trolley is provided with a roller that slides with the first slide rail and a sprocket assembly that meshes with the chain, and the trolley also includes a sling for lifting pipes and a driver that controls the lifting of the sling. The roller cooperates with the track to limit the displacement of the side of the trolley and reduce the friction between the trolley and the truss. The sprocket assembly meshes with the chain to provide a large and stable force for the trolley, and it is not easy for the trolley to slip with the truss. When the trolley stops, its own inertia cannot make it continue to move, which can reduce the position deviation of the sling. On this basis, the lifting of the sling can be accurately fixed with the sling and transported to the designated area by controlling the lifting of the sling through the driver.

[0013] Furthermore, the sling includes a sling power part and a plurality of arc-shaped push plates that can be inserted into the inner ring of the pipe material. The plurality of arc-shaped push plates are transmission-connected with the sling power part so that the plurality of arc-shaped push plates can move in the inner ring of the pipe material to clamp or loosen the pipe material. When lifting the pipe material, the arc-shaped push plates are used to clamp the pipe material. After the arc-shaped push plates are inserted into the inner ring of the pipe material and are stretched outward, they can be pressed against the inner ring of the pipe material to clamp the pipe material. The shape of the arc-shaped push plates is similar to that of the inner ring of the pipe material, and the damage to the pipe material is small. The sling power part is transmission-connected with the plurality of arc-shaped push plates to provide power for the plurality of arc-shaped push plates.

[0014] Furthermore, the pipe material turning machine includes a support seat, a flap hingedly mounted on the support seat, the flap is used to carry the pipe material lifted by the walking trolley, the flap is provided with a tongue plate that can pass through the inner ring of the pipe material to keep the pipe material on the flap, the support seat is equipped with a turning cylinder, the piston rod of the turning cylinder is hinged with the flap to control the rotation of the flap relative to the support seat. The walking trolley transports the pipe material to the top of the flap, aligns the inner ring of the pipe material with the tongue plate, and allows the tongue plate to pass through the pipe material, thereby realizing the displacement limitation of the pipe material on the flap by the tongue plate, so that after the flap is turned over a certain angle, the pipe material can still be kept on the flap, and the power for turning the flap is provided by the turning cylinder, which can provide a large thrust to control the turning of the flap carrying the pipe material.

[0015] Furthermore, the flap is provided with a through slot, and the tube turning machine further comprises a tongue plate oil cylinder, the piston rod of which passes through the through slot and is hinged to the tongue plate to control the tongue plate to turn over relative to the flap. The tongue plate oil cylinder can control the tongue plate to turn over, and when the tongue plate oil cylinder pulls the tongue plate toward itself, the end of the tongue plate will be closer to the center of the flap, and when the tube is placed on the flap, the tongue plate can easily extend into the inner circle of the tube, and when the tongue plate oil cylinder pushes the tongue plate outward, the tongue plate can contact the inner circle of the tube, and after the flap is turned over, the tube can be hung on the tongue plate without sliding off the tongue plate.

[0016] Furthermore, the loading trolley is located between the tube turning machine and the unwinding device, and includes a fixed base and a feeding trolley slidably mounted on the fixed base. The feeding trolley includes a trolley base and a lifting seat mounted on the trolley base. The tubes on the tube turning machine are placed on the lifting seat after turning. The lifting seat is provided with a lifting device for controlling the lifting of the lifting seat relative to the trolley base to transport the tubes to the unwinding device. The loading trolley is used to transport the tubes in the horizontal direction. The tubes are placed on the lifting seat. The feeding trolley changes the horizontal position of the tubes to shorten the distance between the tubes and the unwinding machine. The lifting seat is driven to rise and fall by the lifting device to align the tubes with the unwinding machine, and the feeding trolley slides on the fixed base to transport the tubes to the unwinding machine.

[0017] Furthermore, the uncoiler includes an expansion and contraction mechanism for fixing the pipe material and a discharge device for driving the expansion and contraction mechanism to rotate, the expansion and contraction mechanism includes a pipe material mounting plate and a plurality of drum pieces slidably mounted on the pipe material mounting plate for fixing the pipe material, the discharge device includes a discharge motor and a discharge gear drivingly matched with the discharge motor, the discharge gear is circumferentially meshed with the pipe material mounting plate to drive the pipe material mounting plate to rotate. The pipe material is transported to the expansion and contraction mechanism and fixed by a plurality of drum pieces. When the discharge motor drives the discharge gear to rotate, the discharge gear can drive the pipe material mounting plate to rotate through meshing, so as to drive the pipe material to rotate synchronously. After the pipe material is rotated, the uncoiler operation can be started.

[0018] Furthermore, the uncoiler and the side of the loading trolley are also provided with a pipe material pushing device, which includes a material blocking frame, a rotating arm slidably mounted on the material blocking frame and capable of flipping up and down, and a material blocking disk is provided on the rotating arm, and the material blocking disk abuts against the end of the pipe material when the pipe material is fixed to the expansion and contraction mechanism. The rotating arm is slidably mounted on the material blocking frame, and after the pipe material is mounted on the expansion and contraction mechanism, it slides on the material blocking frame so that the material blocking disk abuts against the end of the pipe material, and the pipe material is pressed against the expansion and contraction mechanism to avoid the pipe material from spreading or staggering before the coiling begins; when the rotating arm swings, it can drive the material blocking disk to swing synchronously, and when the pipe material needs to be installed on the expansion and contraction mechanism, the rotating arm swings upward so that the pipe material can be installed on the expansion and contraction mechanism smoothly and without obstruction, and after the installation is completed, the rotating arm is reset, and the material blocking disk presses the pipe material by sliding the sliding seat on the guide rail.

[0019] Furthermore, a pipe stacking area is provided on each side of the material rack, two uncoilers are provided on the uncoiler, and the two uncoilers are arranged back to back, and a set of pipe turning and transmission devices are provided on each side of the uncoiler corresponding to the uncoilers. There is a pipe stacking area on each side of the truss, and only one walking trolley is used for transportation, which can reduce the cost of equipment. The two uncoilers can perform the uncoiling operation of the pipe at the same time, and the uncoiler mechanism is arranged back to back, so that the pipe can be loaded to the uncoiler from different positions on the rack, which is more convenient, and the loading process will not affect the operation of the uncoiler.

[0020] Furthermore, in the tube turning transmission device on one side of the unwinding device, the loading trolley also includes a rotating device for horizontally rotating the tube by 180°. The coiling direction of the produced coils is consistent. If the discharge direction of the tubes on both sides needs to be consistent, the upper and lower positions of the tubes on one side need to be replaced. The position replacement before placing the tubes on the loading trolley consumes a lot of time and power. On the loading trolley, the tubes on the loading trolley are horizontally rotated by 180° through the rotating device to complete the position replacement of the two ends of the tube. The position accuracy of the servo motor is very accurate, and the rotation angle of the tube can be accurately controlled to prevent the tube from being unable to be installed on the unwinding machine after rotation.

[0021] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0022] The present invention will be further described below in conjunction with the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the automatic feeding and unwinding mechanism of the coil billet in an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the material rack in the embodiment of the present invention;

[0025] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0026] Figure 4 This is a partial enlarged view of the walking trolley;

[0027] Figure 5 It is a structural schematic diagram of a tube turning machine in an embodiment of the present invention;

[0028] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0029] Figure 7 It is a partial schematic diagram of the uncoiler in the embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the loading trolley in an embodiment of the present invention;

[0031] Fig. 9 It is a front view of the loading trolley in the embodiment of the present invention;

[0032] Fig.10 It is a structural schematic diagram of a pipe material propulsion device in an embodiment of the present invention;

[0033] Fig.11It is a partial schematic diagram of a tube material advancing device and an unwinding machine in an embodiment of the present invention;

[0034] Fig.12 It is a schematic diagram of the structure of a loading trolley with a rotating device in an embodiment of the present invention.

[0035] Reference numerals:

[0036] Material rack 100, truss 110, first slide rail 111, track 1111, chain 1112, pipe material storage area 120, pipe material processing area 130;

[0037] Traveling trolley 200, spreader 210, arc push plate 211, spreader bracket 212, spreader cylinder 213, spindle 214, connecting rod assembly 215, first connecting rod 2151, second connecting rod 2152, third connecting rod 2153, driver 220, guide column 221, first lifting motor 222, tube body 230, cross plate 240, fixed tube 241, chain 242, support member 250, support base 251, adjustment shaft 252, adjustment hole 253, latch 254, roller 260, first sprocket 261, second sprocket 262;

[0038] Uncoiling device 300, uncoiling machine 310, bearing seat 311, expansion and contraction mechanism 312, shaft body 3121, tube mounting plate 3122, drum sheet 3123, unloading device 313, unloading motor 3131, unloading gear 3132, expansion and contraction power member 3124, fixed frame 320, tube blank guide frame 330, limit rotating wheel 331, rotating sleeve 3311, rotating baffle 3312, unloading detection device 340, speed detector 341, transmission wheel 342;

[0039] The tube turning machine 400, the support seat 410, the flap 420, the tongue plate 430, the first plate body 431, the second plate body 432, the fixed plate 440, the first shaft body 441, the second shaft body 442, the third shaft body 443, the fourth shaft body 444, the turning cylinder 450, the through slot 460, the tongue plate cylinder 470, and the material detector 480;

[0040] The feeding trolley 500, the fixed base 510, the second slide rail 511, the rack 512, the driving motor 513, the gear 514, the feeding trolley 520, the trolley base 521, the lifting seat 522, the tray 5221, the tube placement slot 5222, the lifting device 523, the guide column 5231, the second lifting motor 5232, the first boss 5233, the second boss 5234, the screw 5235, the screw cover 5236, and the servo motor 530;

[0041] The pipe material propulsion device 600, the material blocking frame 610, the guide rail 611, the torque motor 612, the threaded rod 613, the rotating arm 620, the sliding seat 6201, the swing arm 621, the swing arm cylinder 622, the material blocking disc 630, the first disc frame 631, the second disc frame 632, the column 633, the opening 634, and the slot 635. [Specific implementation method]

[0042] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] Reference Figures 1 to 12 The embodiment of the present invention proposes an automatic loading and unwinding mechanism for coiled pipe blanks, comprising: a material rack 100, on which two trusses 110 are arranged, a pipe material stacking area 120 is arranged on the side of the material rack 100, and a pipe material processing area 130 is arranged below the two trusses 110; and a walking trolley 200, which is slidably installed on the two trusses 110 and is used to transport the pipe material from the pipe material stacking area 120 to the pipe material processing area 130; and an unwinding device 300, which is located in the pipe material processing area 130 and includes an unwinding machine 310; and a pipe material turning and transmission device, which is located in the pipe material processing area 130 and includes a pipe material turning machine 400 and a loading trolley 500, wherein the pipe material turning machine 400 turns the pipe material moved by the walking trolley 200 by 90 degrees and then transports the pipe material to the unwinding machine 310 through the loading trolley 500.

[0048] Multiple coils of pipes are stacked in the pipe stacking area 120. The automatic loading and unwinding mechanism of the coiled pipe blank automatically extracts the pipes in the pipe stacking area 120 through the walking trolley 200 and sends them to the pipe processing area 130. In this process, no personnel are required to participate in the lifting and transportation of the pipes, which reduces the manpower input. The pipes lifted by the walking trolley 200 are placed on the pipe turning machine 400, and after the pipes are turned over by the pipe turning machine 400, the placement direction of the pipes is changed. The loading trolley 500 transports the turned pipes toward the unwinding machine 310 to load the pipes, and then the unwinding machine 310 performs the unwinding operation. The entire process can realize the automatic loading and unwinding of the pipes by setting the displacement distance of the walking trolley 200, the turning time of the pipe turning machine 400, the displacement distance of the loading trolley 500, etc., which reduces the manpower input and the work intensity of the staff and improves the processing efficiency.

[0049] Reference Figures 2 to 4 , the structure of the traveling trolley 200 is:

[0050] The traveling trolley 200 includes a sling 210 for lifting pipes and a driver 220 for controlling the lifting and lowering of the sling 210. The driver 220 can control the lifting and lowering of the sling 210 to lift or place the pipes on the pipe turning machine 400. The sling 210 includes a sling power part and a plurality of arc-shaped push plates 211 that can extend into the inner circle of the pipe. The plurality of arc-shaped push plates 211 are transmission-connected to the sling power part so that the plurality of arc-shaped push plates 211 can move in the inner circle of the pipe to clamp or release the pipe. After the arc-shaped push plates 211 extend into the inner circle of the pipe, they are stretched outward to abut against the inner circle of the pipe to clamp the pipe. The shape of the arc-shaped push plates 211 is similar to that of the inner circle of the pipe, and the damage to the pipe is relatively small. The sling power part is transmission-connected to the plurality of arc-shaped push plates 211 to provide power to the plurality of arc-shaped push plates 211.

[0051] In the above, the sling 210 also includes a sling bracket 212 and a linkage. The sling power part is a sling cylinder 213 installed on the sling bracket 212. Multiple arc-shaped push plates 211 are transmission-connected to the sling cylinder 213 through a linkage. The linkage includes a main shaft 214 located at the lower end of the sling bracket 212. The main shaft 214 is connected to the piston rod of the sling cylinder 213. A plurality of connecting rod assemblies 215 are arranged between the main shaft 214 and the lower end of the sling bracket 212. Each connecting rod assembly 215 is connected to an arc-shaped push plate 211 to control the position change of the arc-shaped push plate 211. The cylinder can control the extension and retraction of the piston rod, thereby driving the movement of the connecting rod assembly 215 connected to the arc-shaped push plate 211 to realize the control of the movement of the arc-shaped push plate 211, thereby lifting the pipe material and realizing the automation of the lifting process.

[0052] Preferably, the connecting rod assembly 215 includes a first connecting rod 2151 and a second connecting rod 2152, the first connecting rod 2151 and the second connecting rod 2152 have the same length, the first connecting rod 2151 is hinged to the main shaft 214 at a portion near its upper end, the second connecting rod 2152 is hinged to the main shaft 214 at a portion near its lower end, the first connecting rod 2151 and the second connecting rod 2152 are hinged to an arc-shaped push plate 211 at the same time, the third connecting rod 2153 is hinged to the lower end of the hanger bracket 212, the third connecting rod 2153 is hinged to the first connecting rod 2151, and the third connecting rod 2153 is composed of two connecting rods with hinged ends.

[0053] In the above description: the arc-shaped push plate 211 is connected to the main shaft 214 through the first connecting rod 2151 and the second connecting rod 2152, and its position change is limited by the first connecting rod 2151 and the second connecting rod 2152, and it cannot move freely relative to the main shaft 214 (relative to the position change or angle change of the main shaft 214). The first connecting rod 2151 and the second connecting rod 2152 have a linkage relationship, and the movement of the two is consistent, so that when there is no position change between the first connecting rod 2151 and the second connecting rod 2152 and the main shaft 214, the position of the pipe material will not change either. In this way, the lifting device 210 will not cause the pipe material to fall off during the process of lifting the pipe material;

[0054] The first link 2151 and the third link 2153 are hinged, and the relative position relationship between the first link 2151 and the main shaft 214 (that is, the angle between the two, which also corresponds to the distance between the arc push plate 211 and the main shaft 214) is maintained by the third link 2153. When the arc push plate 211 is in contact with the inner ring of the pipe, the distance between the two hinges of the third link 2153 and the main shaft 214 and the first link 2151 can be maintained to keep the arc push plate 211 in contact with the inner ring of the pipe, so that the pipe can be kept on the hanger 210 and will not fall off. When the main shaft 214 is extended or retracted, the angle between the two links of the third link 2153 is forced to change, or the angle between the first link 2151, the second link 2152 and the main shaft 214 is changed, so that the displacement of the arc push plate 211 in the radial direction of the axis of the pipe can be controlled, and it can be applied to the lifting of pipes of different specifications.

[0055] Reference Figure 5 and Figure 6 The structure of the tube turning machine 400 is:

[0056] The pipe turning machine 400 is used to turn over the coiled pipe blank to be processed, and includes a support seat 410, a flap 420 and a tongue plate 430. Two fixed plates 440 are provided on the flap 420. A first shaft 441 and a second shaft 442 are provided between the two fixed plates 440. The flap 420 is hinged to the support seat 410 through the first shaft 441. A turning cylinder 450 is hinged on the support seat 410. The piston rod of the turning cylinder 450 is hinged to the second shaft 442. The power for turning the flap 420 is provided by the turning cylinder 450. The cylinder can provide a large thrust to control the turning of the flap 420 carrying the pipe. When the piston rod of the turning cylinder 450 is extended or retracted, the flap 420 can be rotated relative to the support seat 410. When the position of the piston rod remains unchanged, placing the pipe on the flap 420 will not change the positional relationship between the flap 420 and the support seat 410, and the overall structure is stable.

[0057] Among them, the tongue plate 430 includes a first plate body 431 and a second plate body 432, the ends of the first plate body 431 and the second plate body 432 are connected to form an "L"-shaped plate body, a through groove 460 is provided on the flap 420 between the two fixed plates 440, a tongue plate cylinder 470 is hingedly installed between the two fixed plates 440, and a third shaft 443 and a fourth shaft 444 are also provided between the two fixed plates 440. The connection between the first plate body 431 and the second plate body 432 is hinged to the third shaft 443, and the tongue plate cylinder 470 is hinged to the fourth shaft 444. The tongue plate cylinder 470 can control the flipping of the tongue plate 430. In the initial state, the flap 420 remains horizontal, and the first plate body 431 is vertical. Straight upward, when the tongue plate cylinder 470 pulls the second plate body 432 towards itself, the end of the first plate body 431 will be closer to the center of the flap 420. When the pipe is placed on the flap 420, the first plate body 431 can easily extend into the inner circle of the pipe material. When the tongue plate cylinder 470 pushes the second plate body 432 outward (outward means in the direction away from the tongue plate cylinder 470), the first plate body 431 can contact the inner circle of the pipe material. The flip cylinder 450 controls the flap 420 to flip 90° in the up and down direction, changing the direction of the pipe material. In this process, the pipe material can be hung on the tongue plate 430 without sliding off the tongue plate 430, thereby limiting the displacement of the pipe material on the flap 420.

[0058] Reference Figure 7 , the structure of the unwinding device 300 is:

[0059] The uncoiler 310 includes a fixed frame 320 and a uncoiler 310 installed on the fixed frame 320. The uncoiler 310 includes a bearing seat 311, an expansion and contraction mechanism 312 for fixing the tube 241 material and a discharge device 313 for driving the expansion and contraction mechanism 312 to rotate. The expansion and contraction mechanism 312 includes a shaft body 3121 movably connected to the bearing seat 311 and a tube material mounting disk 3122 rotatably mounted on the bearing seat 311. A plurality of drum sheets 3123 are slidably mounted on the tube material mounting disk 3122. The discharge device 313 is arranged below the expansion and contraction mechanism 312 and includes a discharge motor 3131 and a discharge gear 3132 drivingly matched with the discharge motor 3131. An outer gear ring is provided on the outer periphery of the tube material mounting disk 3122 to enable the tube material mounting disk 3122 to mesh with the discharge gear 3132. The discharge gear 3132 can drive the tube material mounting disk 3122 to rotate through meshing, so as to drive the tube material to rotate synchronously, so as to perform the uncoil operation.

[0060] The bearing seat 311 is provided with an expansion and contraction power piece 3124, which can be an expansion and contraction motor. The shaft body 3121 is provided with a threaded output shaft for mounting the expansion and contraction motor. The drum piece 3123 and the shaft body 3121 are connected by a hinge rod. The circumferential rotation of the shaft body 3121 is restricted by a plurality of drum pieces 3123. The shaft body 3121 and the bearing seat 311 are slidably matched. When the expansion and contraction motor drives the output shaft to rotate, the shaft body 3121 moves axially along the output shaft, and the drum piece 3123 is controlled by the hinge rod. Move outward to achieve the tightening of the pipe material. When the expansion and contraction motor reverses, the drum piece 3123 moves inward. Alternatively, the expansion and contraction power part 3124 can be an expansion and contraction cylinder. The shaft body 3121 and the bearing seat 311 are slidably matched. The drum piece 3123 and the shaft body 3121 are also connected by a hinged rod. When the expansion and contraction cylinder drives the shaft body 3121 to extend, the hinged rod controls the drum piece 3123 to move outward to achieve the tightening of the pipe material. When the expansion and contraction cylinder drives the shaft body 3121 to retract, the drum piece 3123 moves inward.

[0061] Reference Figure 8 and Fig. 9 The structure of the loading trolley 500 is:

[0062] The loading trolley 500 is located between the tube turning machine 400 and the unwinding device 300, and transports the tube on the tube turning machine 400 to the expansion and contraction mechanism 312 of the unwinding device 300. It includes a fixed base 510 and a feeding trolley 520 slidably mounted on the fixed base 510. The feeding trolley 520 includes a trolley base 521 and a lifting seat 522 mounted on the trolley base 521. The lifting seat 522 is provided with a lifting device 523 for controlling the lifting seat 522 to rise and fall relative to the trolley base 521.

[0063] After being turned over, the tube on the tube turning machine 400 is placed on a lifting seat 522. A tray 5221 is provided on the lifting seat 522. A tube placing groove 5222 is provided on the tray 5221. The tube is placed in the tube placing groove 5222 and the two side walls of the tube placing groove 5222 are against the outer periphery of the tube. While carrying the tube, the tube can also be limited to prevent the tube from falling from the side of the loading trolley 500. The horizontal position of the tube is changed by sliding the feeding trolley 520 on the fixed base 510 to shorten the distance between the tube and the uncoiler 310. The lifting seat 522 is driven to rise and fall by the lifting device 523 to align the inner circle of the tube with the multiple drum sheets 3123 of the expansion and contraction mechanism 312. The multiple drum sheets 3123 pass through the inner circle of the tube after the feeding trolley 520 slides. When the lifting device 523 drives the lifting seat 522 to descend, the tube remains on the expansion and contraction mechanism 312.

[0064] Thus, the process of transporting the pipe from the pipe stacking area 120 to the uncoiler 310 is automated.

[0065] Reference Figure 4 Based on the above embodiment, in this embodiment, the structure of the driver is specifically described:

[0066] The driver 220 includes two guide columns 221 that penetrate the walking trolley 200 in the vertical direction and a first lifting motor 222 that drives the two guide columns 221 to move up and down. The upper ends of the two guide columns 221 are connected to each other, and the lower ends are connected to the sling 210. Through the two guide columns 221, the sling 210 installed below the guide columns 221 can be prevented from rotating relative to the guide columns 221. After the upper ends of the two guide columns 221 remain connected, the downward displacement of the guide columns 221 can be limited. The first lifting motor 222 can provide a large force and does not need to be arranged in the vertical direction, so the overall height of the equipment will not be too large.

[0067] Reference Figure 2 and Figure 3 , based on the above embodiment, in another embodiment of the present invention:

[0068] A plurality of radially extending tubes 230 are provided at the upper end of the hanger bracket 212, a horizontal plate 240 is connected below the two guide columns 221, two fixed tubes 241 are provided on the horizontal plate 240, the fixed tubes 241 and the plurality of tubes 230 are connected by chains 242, and the ends of the plurality of tubes 230 are provided with support members 250 which abut against the pipes when the pipes are hoisted.

[0069] The sling 210 is suspended under the driver 220 by the chain 242. When the sling 210 is driven downward by the driver 220 to lift the pipe, multiple arc-shaped push plates 211 extend into the inner circle of the pipe. As the sling 210 continues to descend, the support 250 contacts the pipe and blocks the sling 210 from continuing to descend. The chain 242 is relaxed from being tightened, which will not affect the lifting and lowering movement of the driver 220. A spacing is left between the driver 220 and the sling 210 to slow down and buffer the driver 220. In this way, the contact area between the arc-shaped push plate 211 and the pipe can be maximized, which makes the lifting more stable and the driver 220 does not need to accurately control the height of the sling 210. Moreover, even if there is a position deviation between the sling 210 and the pipe, the chain 1112 can also be bent to adjust the horizontal position of the sling 210.

[0070] Among them, the support member 250 includes a support base 251 and an adjusting shaft 252 slidably installed on the tube body 230. The adjusting shaft 252 is provided with a plurality of adjusting holes 253 arranged along the axial direction. The tube body 230 is provided with a pin 254 which can be inserted into the adjusting hole 253 to limit the displacement of the support member 250. The adjusting shaft 252 can slide in the axial direction relative to the tube body 230 to adjust the distance between the support base 251 and the tube body 230. After the pin 254 is inserted into the adjusting hole 253, the displacement of the adjusting shaft 252 is limited and cannot continue to slide, thereby keeping the distance between the support base 251 and the tube body 230 unchanged, so as to adjust the length of the arc-shaped push plate 211 extending into the inner circle of the tube material to cope with tube materials of different specifications.

[0071] A sensor may also be provided at the support to determine the relative position relationship between the spreader and the pipe material. The start of the spreader may be controlled by this signal to further realize the automated movement of the equipment.

[0072] Reference Figure 4 In another embodiment of the present invention, the moving mode of the walking trolley on the truss is specifically described, specifically:

[0073] A first slide rail 111 is provided on the two trusses 110, and the first slide rail 111 includes a track 1111 and a chain 1112. The traveling trolley 200 is provided with a roller 260 that slides with the first slide rail 111 and a sprocket assembly that meshes with the chain 1112. The roller 260 cooperates with the track 1111 to limit the displacement of the side of the traveling trolley 200 and reduce the friction between the traveling trolley 200 and the truss 110.

[0074] Among them, the sprocket assembly includes a first sprocket 261 and two second sprockets 262 arranged on both sides of the first sprocket 261, the first sprocket 261 is located above the two second sprockets 262, the chain 1112 is meshed with the lower ends of the two second sprockets 262 and the upper end of the first sprocket 261, and the first sprocket 261 and the second sprocket 262 are respectively meshed with the chain 1112 during the movement of the traveling trolley 200, which can provide a large and stable force for the traveling trolley 200, realize stable transmission, and it is not easy for the traveling trolley 200 and the truss 110 to slip. When the traveling trolley 200 stops, its own inertia cannot make it continue to move, ensuring that the position of the traveling trolley 200 is not prone to position deviation, so as to reduce the position deviation of the sling 210, and the lifting accuracy is high, so as to realize the automatic operation of the equipment.

[0075] Reference Figure 8 and Fig. 9 In another embodiment of the present invention, the moving mode of the feeding trolley on the fixed base is specifically described, specifically:

[0076] A second slide rail 511 and a rack 512 arranged along the length direction of the second slide rail 511 are provided on the fixed base 510. A driving motor 513 and a gear 514 connected to the driving motor 513 are provided at the bottom of the trolley base 521. The loading trolley 500 slides on the second slide rail 511 through the engagement of the gear 514 with the rack 512. The loading trolley 500 reduces the friction between the loading trolley 500 and the fixed base 510 during the movement by sliding with the second slide rail 511. The engagement of the gear 514 and the rack 512 provides the loading trolley 500 with sliding power on the fixed base 510. The engagement of the gear 514 and the rack 512 can reduce the influence of inertia force on the loading trolley 500, reduce the position deviation of the loading trolley 500 when moving, and the position of the trolley can also be precisely controlled as required.

[0077] Reference Fig. 9 In another embodiment of the present invention, the structure of the lifting device 523 is specifically described:

[0078] The lifting device 523 includes a plurality of guide columns 5231 arranged at the bottom of the lifting seat 522, and the plurality of guide columns 5231 are slidably matched with the trolley base 521. The lifting device 523 also includes a second lifting motor 5232 arranged between the lifting seat 522 and the trolley base 521 to provide lifting power for the lifting seat 522.

[0079] The bottom of the lifting seat 522 is provided with a first boss 5233, the upper end of the trolley base 521 is provided with a second boss 5234 opposite to the first boss 5233, the second lifting motor 5232 is connected with a screw rod 5235, the screw rod 5235 is provided with two sections of threads with different spiral directions and are respectively threadedly connected to the rotary cover 5236, the two rotary covers 5236 are respectively located on both sides of the first boss 5233 and the second boss 5234, each rotary cover 5236 is hingedly connected to the first boss 5233 and the second boss 5234 through a hinge rod, after the rotary cover 5236 is hinged to the hinge rod, its rotation on the screw rod 5235 is restricted, when the screw 5235 rotates, the rotary cover 52 36 can move on the screw rod 5235 through threaded engagement, and because the spiral directions of the threads at both ends of the screw rod 5235 are opposite, the two rotary covers 5236 can move on the screw rod 5235 to move closer to or away from each other, thereby driving the hinged rod to increase or decrease the distance between the first boss 5233 and the second boss 5234, that is, the lifting and lowering of the lifting seat 522 relative to the trolley base 521. Through the threaded engagement, when the second lifting motor 5232 is not started, the positions of the rotary covers 5236 and the screw rod 5235 will not change, the lifting seat 522 can remain stable, and the two rotary covers 5236 can maintain synchronous movement to keep the lifting seat 522 stable during the lifting process.

[0080] Through the above-mentioned method, the second lifting motor 5232 that provides lifting power for the lifting seat 522 is horizontally arranged between the lifting seat 522 and the trolley base 521, and occupies a small space in the vertical direction. If a cylinder is used to realize the lifting and lowering of the lifting seat 522, when the number of cylinders is one, the cylinder needs to provide thrust in the vertical direction to realize lifting, which will increase the height of the feeding trolley 520. If the number of cylinders is two, the cylinders can be arranged horizontally on both sides to perform lifting operations, but adding a cylinder requires more cost.

[0081] Reference Fig.10 and Fig.11 Based on the above embodiment, in another embodiment of the present invention, a pipe material pushing device 600 is further proposed. The pipe material pushing device 600 is located on the side of the uncoiler 310 and the loading trolley 500. The pipe material pushing device 600 includes a material blocking frame 610, a rotating arm 620 slidably mounted on the material blocking frame 610, and a material blocking plate 630 mounted on the rotating arm 620. After the pipe material is installed on the expansion and contraction mechanism 312, the rotating arm 620 slides on the material blocking frame 610 to make the material blocking plate 630 abut against the end of the pipe material, pressing the pipe material against the expansion and contraction mechanism 312 to avoid the pipe material from spreading or staggering before the coiling begins.

[0082] The material blocking plate 630 includes a first plate frame 631 and a second plate frame 632 rotatably mounted on the rotating arm 620. The first plate frame 631 and the second plate frame 632 are connected by multiple columns 633 to maintain a distance between the first plate frame 631 and the second plate frame 632. An opening 634 is provided on the second plate frame 632 to achieve the plug-in cooperation between the material blocking plate 630 and the multiple drum sheets 3123. When the material blocking plate 630 is used to press the pipe material, as the rotating arm 620 moves, the multiple drum sheets 3123 can be inserted into the first plate frame 631 and the second plate frame 632 through the opening 634. The length of the drum sheet 3123 extending between the two is determined by the specifications of the pipe material, and multiple drum sheets 3123 can be inserted into the first plate frame 631 and the second plate frame 632 through the opening 634. The root column 633 creates a larger space between the first disc rack 631 and the second disc rack 632, which can handle pipes of different specifications. The second disc rack 632 is also provided with a plurality of slots 635 circumferentially arranged along the opening 634. The number and shape of the slots 635 match the drum piece 3123. After moving, the plurality of drum pieces 3123 clamp the pipes, and the drum pieces 3123 are also simultaneously clamped into the slots 635. When the pipe mounting disc 3122 rotates, the material blocking disc 630 can also rotate accordingly to block the pipes during the unwinding process, and there will be no relative rotation between the material blocking disc 630 and the plurality of drum pieces 3123, so there is less wear between the two and no collision will occur.

[0083] In order to prevent the rotating arm 620 from hindering the loading of materials onto the uncoiler 310, the rotating arm 620 can be turned up and down relative to the uncoiler 310. Specifically, a guide rail 611 is arranged on the material blocking frame 610, and the rotating arm 620 includes a sliding seat 6201 and a swing arm 621 that rotates with the sliding seat 6201. The sliding seat 6201 is slidably mounted on the guide rail 611, and a swing arm cylinder 622 is also hingedly mounted on the sliding seat 6201. The piston rod of the swing arm cylinder 622 is hingedly connected to the swing arm 621 to control the swing arm. 621 swings, and the swing arm cylinder 622 provides power for the swing arm 621 to swing relative to the sliding seat 6201. When the swing arm 621 swings, it can drive the blocking plate 630 to swing synchronously. When the pipe material needs to be installed on the expansion and contraction mechanism 312, the cylinder controls the swing arm 621 to swing upward, so that the pipe material can be installed on the expansion and contraction mechanism 312 smoothly and without obstruction. After the installation is completed, the swing arm 621 is reset, and the blocking plate 630 presses the pipe material through the sliding of the sliding seat 6201 on the guide rail 611.

[0084] A torque motor 612 is provided on the material blocking frame 610, and the torque motor 612 is transmission-connected to a threaded rod 613 which is threadedly matched with the sliding seat 6201. The threaded rod 613 is arranged along the length direction of the guide rail 611. The torque motor 612 can provide a large torsional force. As the sliding seat 6201 slides, the material blocking plate 630 is transported toward the expansion and contraction mechanism 312, and the material blocking plate 630 is pressed against the pipe material. The large torque provided by the torque motor 612 can ensure that the material blocking plate 630 can press the pipe material tightly, and the threaded match between the threaded rod 613 and the sliding seat 6201 also keeps the position of the sliding seat 6201 on the guide rail 611 unchanged.

[0085] Reference Figure 7 In another embodiment of the present invention, in order to guide the conveying of the uncoiled tube material, a tube guide frame 330 is further provided on the fixed frame 320:

[0086] In order to guide the transportation of uncoiled pipe materials, multiple groups of limiting rotating wheels 331 are rotatably installed on the pipe blank guide frame 330, each group of limiting rotating wheels 331 includes two limiting rotating wheels 331 correspondingly arranged above and below, and the limiting rotating wheels 331 include a rotating sleeve 3311 and a rotating baffle 3312 arranged on both sides of the rotating sleeve 3311 to limit the pipe material between the two limiting rotating wheels 331, and the transmission direction of the pipe material is limited by the multiple groups of limiting rotating wheels 331.

[0087] After the tube is unrolled, the separated single tube is collected from the top of the fixed frame 320. After the tube passes through multiple sets of limiting rotating wheels 331, it can be straightened to a certain extent and the tube is limited, so that the separated tube will not affect the tube being unrolled on the expansion and contraction mechanism 312. The limiting rotating wheel 331 can also rotate. When the tube passes between the two limiting rotating wheels 331, it can simultaneously drive the limiting rotating wheel 331 to rotate, thereby reducing the friction between the tube and the limiting rotating wheel 331. During the transmission of the tube on the tube guide frame 330, the rotating baffle 3312 can limit the radial displacement of the tube, limit the tube between the two limiting rotating wheels 331, and define the discharge position of the tube.

[0088] Reference Figure 1 In order to improve production efficiency, based on the above embodiments, in one embodiment of the present invention, a pipe material stacking area 120 is provided on both sides of the material rack 100, and two uncoilers 310 are provided on the uncoiler 300.

[0089] The two decoilers 310 are arranged back to back, that is, the two decoilers 310 are loaded from both sides of the fixed frame 320 respectively, which is more convenient, and the operation of the decoiler 310 will not be affected during the loading process. A group of pipe turning and transmission devices are respectively provided on both sides of the decoiler 300 corresponding to the decoiler 310, and the number of walking trolleys 200 on the truss 110 is still one. Through one walking trolley 200, the pipe can be lifted from the two pipe stacking areas 120 to the pipe processing area 130, which can reduce the cost of equipment.

[0090] Based on the above embodiment, since the spiral direction of the produced coiled pipe is consistent, if the discharge direction of the uncoilers on both sides needs to be consistent, the upper and lower positions of the pipe materials on one side need to be replaced. The weight of the pipe materials is usually several hundred kilograms. It takes a lot of time and power to replace the position before placing the pipe materials on the loading trolley. Therefore, in another embodiment of the present invention, referring to Fig.12 One of the two loading carts 500 also includes a rotating device for horizontally rotating the pipe material by 180°.

[0091] The rotating device is arranged between the tray 5221 and the lifting seat 522. The rotating device includes a servo motor 530 and a first bevel gear (not shown in the figure) that is transmission-connected to the servo motor 530. A second bevel gear (not shown in the figure) that meshes with the first bevel gear is provided at the bottom of the tray 5221. The servo motor 530 controls the tray 5221 to rotate 180° through the meshing transmission of the first bevel gear and the second bevel gear, thereby completing the position replacement of the two ends of the pipe material, so that the discharging directions of the processing stations on both sides of the pipe material unwinding device 300 are the same. The position accuracy of the servo motor 530 is very accurate, and the rotation angle of the tray 5221 can be accurately controlled to prevent the pipe material from being unable to be fed into the pipe material unwinding device 300 after rotation.

[0092] Reference Figure 5 and Figure 7 In order to further realize automation, based on the above embodiments, in this embodiment:

[0093] A material detector 480 is provided on the flap 420. The material detector 480 can detect whether there is a pipe material on the flap 420, and can control the flipping of the flap 420 according to the detection signal to realize the automatic operation of the equipment.

[0094] The fixed frame 320 is also provided with a material discharge detection device 340, which includes a speed detector 341 and a transmission wheel 342 connected to the speed detector 341. The pipe material bypasses the lower end of the transmission wheel 342 from the expansion and contraction mechanism 312 and enters the pipe blank guide frame 330 upward. The pipe material bypasses the transmission wheel 342, so that the pipe material will drive the transmission wheel 342 to rotate synchronously during the transmission process. The speed detector 341 can detect the transmission of the transmission wheel 342 to obtain the transmission speed of the pipe material. In addition, it is possible to determine whether there are still pipes on the uncoiler 310 based on the rotation speed of the transmission wheel 342, and to determine whether there are still unreeled pipes on the pipe mounting disk 3122 based on this signal. When the rotation speed of the transmission wheel 342 becomes zero, the equipment can determine that the pipes on the pipe mounting disk 3122 have been unreeled, and can stop the unloading device 313 from rotating the pipe mounting disk 3122, and reset the pipe pushing device 600, so that the processed pipes can be transported to the uncoiler 310.

[0095] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. Automatic feeding and unwinding mechanism for coiled tube blanks, characterized in that: include: A material rack, wherein two trusses are arranged on the material rack, a pipe material stacking area is arranged on the side of the material rack, and a pipe material processing area is arranged below the two trusses; as well as, A traveling trolley is slidably mounted on the two trusses and is used to transport pipes from the pipe stacking area to the pipe processing area; as well as, an uncoiling device, located in the tube material processing area, comprising an uncoiling machine; and The tube turning and transmission device is located in the tube processing area, and includes a tube turning machine and a loading trolley. The tube turning machine turns the tube moved by the walking trolley by 90 degrees and then transports the tube to the uncoiler through the loading trolley. The walking trolley also includes a hanger for lifting the tube and a driver for controlling the lifting of the hanger. The hanger includes a hanger power part and a plurality of arc-shaped push plates that can extend into the inner circle of the tube. The plurality of arc-shaped push plates are connected to the hanger power part in a transmission manner so that the plurality of arc-shaped push plates can move in the inner circle of the tube to clamp or release the tube. The sling also includes a sling bracket and a linkage. The sling power part is a sling cylinder installed on the sling bracket. Multiple arc-shaped push plates are connected to the sling cylinder through linkage. The linkage includes a main shaft located at the lower end of the sling bracket. The main shaft is connected to the piston rod of the sling cylinder. Multiple groups of connecting rod assemblies are arranged between the main shaft and the lower end of the sling bracket. Each group of connecting rod assemblies is connected to an arc-shaped push plate to control the position change of the arc-shaped push plate. The sling cylinder can control the extension and contraction of the piston rod to drive the movement of the connecting rod assembly connected to the arc-shaped push plate. The uncoiler includes an expansion and contraction mechanism for fixing the pipe material and a discharge device for driving the expansion and contraction mechanism to rotate. The slinger and the side of the loading trolley are also provided with a pipe material propulsion device. The pipe material propulsion device includes a material blocking frame, a sliding device installed on A material blocking frame, a rotating arm that can be flipped up and down, and a material blocking plate installed on the rotating arm. After the pipe material is installed on the expansion and contraction mechanism, the rotating arm slides on the material blocking frame, and the material blocking plate abuts against the end of the pipe material when the pipe material is fixed to the expansion and contraction mechanism; the material blocking plate includes a first plate frame and a second plate frame rotatably mounted on the rotating arm, and the first plate frame and the second plate frame are connected by multiple columns to maintain a distance between the first plate frame and the second plate frame; a guide rail is arranged on the material blocking frame, and the rotating arm includes a sliding seat and a swing arm rotatably matched with the sliding seat, the sliding seat is slidably mounted on the guide rail, and a swing arm cylinder is also hingedly mounted on the sliding seat, and the piston rod of the swing arm cylinder is hinged to the swing arm to control the swing of the swing arm.

2. The automatic feeding and unwinding mechanism for coiled tube blanks according to claim 1 is characterized in that: The two trusses are provided with slide rails, which include tracks and chains. The traveling trolley is provided with rollers which are slidably matched with the slide rails and a sprocket assembly which is meshed with the chain.

3. The automatic feeding and unwinding mechanism for coiled tube blanks according to claim 1 is characterized in that: The pipe turning machine includes a support seat and a flap hingedly mounted on the support seat, the flap being used to carry the pipe lifted by the traveling trolley, the flap being provided with a tongue plate which can pass through the inner ring of the pipe to hold the pipe on the flap, the support seat being installed with a turning cylinder, the piston rod of the turning cylinder being hingedly mounted to the flap to control the rotation of the flap relative to the support seat.

4. The automatic feeding and unwinding mechanism for coiled tube blanks according to claim 3 is characterized in that: The flap is provided with a through slot, and the pipe turning machine further comprises a tongue plate oil cylinder, a piston rod of the tongue plate oil cylinder passes through the through slot and is hinged to the tongue plate to control the tongue plate to turn relative to the flap.

5. The automatic feeding and unwinding mechanism for coiled tube blanks according to claim 1 is characterized in that: The loading trolley is located between the tube turning machine and the unwinding device, and includes a fixed base and a feeding trolley slidably mounted on the fixed base. The feeding trolley includes a trolley base and a lifting seat mounted on the trolley base. The tubes on the tube turning machine are placed on the lifting seat after being turned over. The lifting seat is provided with a lifting device for controlling the lifting seat to rise and fall relative to the trolley base, so as to transport the tubes to the unwinding device.

6. The automatic feeding and unwinding mechanism for coiled tube blanks according to claim 1 is characterized in that: The expansion and contraction mechanism includes a pipe material mounting disk and a plurality of drum plates slidably mounted on the pipe material mounting disk for fixing the pipe material. The discharge device includes a discharge motor and a discharge gear that is transmission-matched with the discharge motor. The discharge gear is circumferentially meshed with the pipe material mounting disk to drive the pipe material mounting disk to rotate.

7. The automatic feeding and unwinding mechanism for coiled tube blanks according to any one of claims 1 to 6, characterized in that: A pipe material stacking area is respectively provided on both sides of the material rack, two uncoilers are provided on the uncoiler device, and the two uncoilers are arranged back to back, and a group of pipe material turning and transmission devices are respectively provided on both sides of the uncoiler device corresponding to the uncoilers.

8. The automatic feeding and unwinding mechanism for coiled tube blanks according to claim 7 is characterized in that: In the tube turning and transmission device on one side of the unwinding device, the loading trolley also includes a rotating device for horizontally rotating the tube by 180°.

Images