Double-end uncoiling machine for cold-rolled steel strip

Abstract

The invention belongs to the technical field of steel strip uncoilers, and particularly relates to a cold-rolled steel strip double-end uncoiler which comprises a base, a dustproof shell is fixedly connected to one side of the upper end of the base, a discharging notch capable of leading a steel strip out of the dustproof shell is formed in one side of the right end of the dustproof shell, and a plurality of second connecting rods are rotationally arranged on the rear side of a rotating column. A groove block is embedded into one end of the second connecting rod through a pin shaft and is in sliding connection with the second connecting rod, and a positioning plate is fixedly connected to one side of the groove block. By means of the scraping traction mechanism and the limiting type translation mechanism, after the steel strip coil is installed on the expansion and contraction mechanism on the upper side, the end of the steel strip coil can be separated out, so that the process that the end of the steel strip is manually found out is omitted, meanwhile, it is guaranteed that the end of the steel strip can enter a designated position in subsequent machining equipment in a flat state, and the machining efficiency is improved. And the processing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel strip uncoiling machines, in particular to a double-head uncoiling machine for cold-rolled steel strips. Background Art

[0002] Cold-rolled steel strip is a steel product made from hot-rolled coils at room temperature and below the recrystallization temperature. Since cold-rolled steel strips are usually rolled into coils for transportation and storage, in order to make it easier to carry out subsequent processing such as cutting, stamping, and welding, the cold-rolled steel strips need to be unrolled first.

[0003] The patent with announcement number CN212821848U discloses a steel strip uncoiler, including a frame, the upper part of the frame is a hollow structure, a bearing seat is inserted into the upper part of the front side wall of the frame, a rotating shaft is installed in the bearing seat, and a driven gear is provided at the rear end of the rotating shaft. The patent provides a steel strip uncoiler. Through the design and use of a series of structures, the patent solves the problem that dust attached to the steel strip during the uncoiling process will generate dust during the uncoiling process, causing a certain degree of impact on the working environment of the workshop. The patent can achieve the purpose of dust removal of the generated dust. At the same time, the purpose of quickly dissipating the heat of the drive motor can be achieved during the dust removal operation, further extending the service life of the drive motor.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] After the steel strip is fixed, its end needs to be manually found and moved to the specified position of the subsequent processing equipment. The whole process is not only labor-intensive, but also there may be errors in manual operation, resulting in the end of the steel strip not being accurately placed in the specified position of the subsequent processing equipment, affecting the smooth progress of the subsequent processing work, and easily causing the produced products to not meet the requirements. In addition, in order to prevent the dust generated when the steel strip is unwound from affecting the working environment, a noise reduction cover is set to cover the steel strip, and a discharge slot is set on the noise reduction cover, and the steel strip can be led out from the discharge slot. However, since the specifications of the discharge slot are fixed, when the steel strip is led out from the discharge slot, there may be a large redundant space between the steel strip and the discharge slot, and some dust is easily discharged outward from these redundant spaces, thereby affecting the working environment.

[0006] To this end, the present invention provides a double-head uncoiler for cold-rolled steel strip. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a double-head uncoiler for cold-rolled steel strip.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a cold-rolled steel strip double-head uncoiler, comprising a base, a dust cover is fixedly connected to one side of the upper end of the base, a discharge slot for allowing the steel strip to be led out of the dust cover is arranged on one side of the right end of the dust cover, an alternating plate is rotatably arranged on one side of the rear end surface of the inner cavity of the dust cover, and two expansion and contraction mechanisms for positioning the steel strip coil are arranged on the alternating plate;

[0009] The expansion and contraction mechanism includes a rotating column rotatably arranged on one side of the front end surface of the alternating plate, a plurality of connecting rods 2 are rotatably arranged on the rear side of the rotating column, one end of the connecting rod 2 is embedded in a groove block through a pin shaft and is slidably connected with the groove block, one side of the groove block is fixedly connected with a positioning plate, a connecting rod 1 is rotatably arranged in the middle of the connecting rod 2, one end of the connecting rod 1 is rotatably connected to one side of the positioning plate, and the other end is rotatably arranged with an adjusting ring, and the adjusting ring is sleeved and slidably connected to the rotating column;

[0010] The dustproof shell is also provided with a scraping and traction mechanism for finding the end of the steel belt;

[0011] The scraping and traction mechanism includes a mounting plate fixedly connected to one side of the dustproof shell, two sliding rods three are slidably connected to the lower right end of the mounting plate, an adjusting plate is fixedly connected to the left end of the sliding rod three, a scraper is fixedly connected to the left end of the adjusting plate, sliding rods four are slidably connected to both sides of the upper end of the adjusting plate, and a pressure roller is fixedly connected to the lower end of the sliding rod four.

[0012] Preferably, a motor 1 is fixedly connected to the middle of the rear end surface of the dustproof shell, the output end of the motor 1 is fixedly connected to the alternating plate, the upper and lower sides of the rear end surface of the alternating plate are fixedly connected to motor 6, and the output end of the motor 6 is fixedly connected to the rotating column.

[0013] Preferably, a threaded rod three is threadedly connected to one side of the adjustment ring, both ends of the threaded rod three are rotated on the rotating column, a motor four is fixedly connected to one side of the front end of the rotating column, and the output end of the motor four is fixedly connected to one end of the threaded rod three.

[0014] Preferably, two sliding rods are slidably connected to one side of the upper end of the dustproof shell, the lower end of the sliding rod is fixedly connected to a frame, pressure rollers are rotatably provided at both ends of the frame, the upper end of the sliding rod is fixedly connected to a connecting block, one end of the sliding rod is sleeved with a spring, the upper end of the spring is fixedly connected to the connecting block, and the other end is fixedly connected to the dustproof shell.

[0015] Preferably, a shell cover is rotatably provided on one side of the front end of the dustproof shell, and two slide rods are slidably connected to both sides of the upper end of the mounting plate, and a baffle plate is fixedly connected to the lower end of the two slide rods, and an electric push rod is fixedly connected to one side of the upper end surface of the mounting plate, and the piston end of the electric push rod is fixedly connected to one side of the upper end surface of the baffle plate, and a baffle plate is slidably connected to one side of the mounting plate, and a threaded rod two is threadedly connected to the upper end of the baffle plate, and both ends of the threaded rod two are rotatably provided on the mounting plate, and a motor two is fixedly connected to one side of the upper end of the mounting plate, and the output end of the motor two is fixedly connected to one end of the threaded rod two.

[0016] Preferably, one side of the lower end of the mounting plate is fixedly connected with an electric push rod 2, and the piston end of the electric push rod 2 is fixedly connected to one side of the adjustment plate.

[0017] Preferably, one side of the upper end of the adjustment plate is fixedly connected with an electric push rod four, and the piston end of the electric push rod four is fixedly connected to one side of the pressure roller.

[0018] Preferably, the base is also provided with a limited translation mechanism for driving the end of the steel belt to move;

[0019] The limited translation mechanism includes a displacement plate slidably connected to one side of the base, a scissors-type lifting mechanism is arranged on the upper end surface of the displacement plate, a receiving plate is arranged on the upper end of the scissors-type lifting mechanism, one side of the upper end surface of the receiving plate is slidably connected to the limiting plate 1, and the other side is fixedly connected to the limiting plate 2, and the inner sides of the limiting plate 1 and the limiting plate 2 are both slidably connected with a pressure plate.

[0020] Preferably, one side of the upper end surface of the limit plate 1 and the limit plate 2 are fixedly connected with an electric push rod 3, the piston end of the electric push rod 3 is fixedly connected to one side of the upper end surface of the pressure plate, the lower end of the limit plate is threadedly connected with a threaded rod 1, both ends of the threaded rod 1 are rotatably set on the supporting plate, the front end side of the supporting plate is fixedly connected with a motor 3, and the output end of the motor 3 is fixedly connected to one end of the threaded rod 1.

[0021] Preferably, a threaded rod four is threadedly connected to one side of the lower end of the displacement plate, both ends of the threaded rod four are rotatably arranged on the base, a motor five is fixedly connected to one side of the right end of the base, and the output end of the motor five is fixedly connected to one end of the threaded rod four.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. A double-head uncoiler for cold-rolled steel strip described in the present invention sets the inner hole of the steel strip coil on the outer side of the positioning plate, and then uses the motor four to drive the threaded rod three to rotate, so that the adjusting ring can slide, the connecting rod one and the connecting rod two can rotate, and the multiple positioning plates can move radially at the same time until the positioning plate fits with the inner hole wall of the steel strip coil, so that the steel strip coil can be fixed, so that steel strip coils with different inner hole diameters can be positioned, and the adaptability is high, and then the motor six is ​​used to drive the rotating column to rotate, so that the steel strip coil can be uncoiled, and because the number of expansion and contraction mechanisms is two, and they are symmetrically distributed at both ends of the alternating plate, so when the rotating column on the upper side rotates and uncoils, the other steel strip coil can be easily rolled up using a crane or a forklift, and when the uncoiling of the upper steel coil is completed, it only needs to use the motor one to drive the alternating plate to rotate 180 degrees to switch to another prepared steel coil for uncoiling, thereby saving the downtime for loading through the double-head uncoiling method, so that the production line can continuously perform uncoiling and feeding operations.

[0024] 2. The double-head uncoiler for cold-rolled steel strip described in the present invention, when the steel strip coil is installed on the expansion and contraction mechanism on the upper side, the pressure roller can press one side of the steel strip coil under the action of the slide rod and the spring without affecting the normal uncoiling of the steel strip coil. The pressure roller can effectively press one side of the steel strip to prevent it from shaking or deviation during the uncoiling process, making the uncoiling process smoother.

[0025] 3. The double-head uncoiler for cold-rolled steel strip described in the present invention utilizes a scraping and traction mechanism and a limiting translation mechanism. After the steel strip coil is installed on the expansion and contraction mechanism on the upper side, the scraper is driven to move and fit into the surface of the steel strip coil, and then the steel strip coil is driven to rotate clockwise. When the end of the steel strip coil contacts the scraper, the end of the steel strip coil is separated by the effect of blocking by the scraper, thereby eliminating the process of manually finding the end of the steel strip and saving manpower. In addition, the end of the steel strip will be placed on the scraper, and then the pressure roller will be driven to approach the end of the steel strip to press its end, and then the adjustment plate will be driven to move out of the dustproof shell, and the end of the steel strip will be placed above the receiving plate. The end of the steel strip can be transported by sliding the displacement plate on the base and unwinding the steel strip, so that the end of the steel strip is moved to the specified position of the subsequent processing equipment, thereby avoiding the placement orientation error caused by mistakes when manually placing the end of the steel strip into the specified position of the processing equipment. Deviation affects the processing work, and then the produced products do not meet the requirements. In addition, when the end of the steel strip is placed above the receiving plate, the limit plate 1 can be driven to approach the limit plate 2 to clamp the two sides of the steel strip, which can effectively prevent the end of the steel strip from deviating on the receiving plate. At the same time, the pressure plate is driven down to press the steel strip, thereby avoiding the rebound of the end of the steel strip. In addition, when the end of the steel strip moves to the specified position, the pressure plate no longer presses the steel strip tightly, and the distance between the pressure plate and the steel strip is adjusted according to the thickness of the steel strip, so that the pressure plate will neither press the steel strip nor make the steel strip slide on the receiving plate in a flat state. That is, under the action of unwinding, the end of the steel strip can slide between the pressure plate and the receiving plate in a flat state and enter the specified position of the processing equipment, thereby ensuring that the end of the steel strip can enter the specified position in the subsequent processing equipment in a flat state, thereby improving the processing efficiency.

[0026] 4. The double-head uncoiler for cold-rolled steel strip described in the present invention, after the steel strip coil is installed inside the dustproof shell, the shell cover is closed, and when the end of the steel strip passes through the discharge slot, the electric push rod 1 and the motor 2 are started respectively according to the width and thickness of the steel strip, and the electric push rod 1 drives the baffle 1 to descend, and on the premise that the baffle 1 does not contact the steel strip, the distance between the baffle 1 and the steel strip is minimized to the greatest extent. Similarly, the motor 2 drives the threaded rod 2 to rotate, so that the baffle 2 approaches the steel strip, and also minimizes the distance between it and the steel strip to the greatest extent. At this time, the baffle 1 and the baffle 2 can cover the redundant space between the steel strip and the discharge slot to the greatest extent without affecting the normal unwinding of the steel strip, and the remaining redundant space is small and can be ignored, thereby further reducing the amount of dust discharged from the discharge slot and reducing the impact on the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the dustproof shell;

[0030] Figure 3 It is a three-dimensional structural diagram of the expansion and contraction mechanism;

[0031] Figure 4 It is a schematic diagram of the local three-dimensional structure at the alternating plate;

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of the dustproof shell;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure at the receiving plate;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure at the mounting plate;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the scraper;

[0036] Fig. 9 1. It is a schematic diagram of the three-dimensional structure of the adjusting ring;

[0037] Fig.10 It is a schematic diagram of the three-dimensional structure of the threaded rod.

[0038] In the figure: 1, base; 2, dust cover; 3, shell cover; 4, displacement plate; 5, scissor lift mechanism; 6, mounting plate; 7, electric push rod 1; 8, motor 1; 9, connecting block; 10, slide bar 1; 11, spring; 12, slide bar 2; 13, electric push rod 2; 14, slide bar 3; 15, baffle 1; 16, motor 2; 17, frame; 18, pressure roller; 19, baffle 2; 20, positioning plate; 21, rotating column; 22, adjusting ring; 23, connecting rod 1; 24, connecting rod 2; 25, groove block; 26, receiving plate; 27, threaded rod 1; 28, limit plate 1; 29, motor 3; 30, limit plate 2; 31, electric push rod 3; 32, pressure plate; 33, threaded rod 2; 34, adjustment plate; 35, electric push rod 4; 36, slide rod 4; 37, pressure roller; 38, scraper; 39, motor 4; 40, threaded rod 3; 41, motor 5; 42, threaded rod 4; 43, alternating plate; 44, motor 6. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Please refer to Figure 1-Figure 10 The present invention provides a technical solution: a double-head uncoiler for cold-rolled steel strip, comprising a base 1, a dust cover 2 is fixedly connected to one side of the upper end of the base 1, a discharge slot for allowing the steel strip to be led out of the dust cover 2 is arranged on one side of the right end of the dust cover 2, an alternating plate 43 is rotatably arranged on one side of the rear end surface of the inner cavity of the dust cover 2, and two expansion and contraction mechanisms for positioning the steel strip coil are arranged on the alternating plate 43;

[0041] The expansion and contraction mechanism includes a rotating column 21 rotatably arranged on one side of the front end surface of the alternating plate 43, a plurality of connecting rods 24 are rotatably arranged on the rear side of the rotating column 21, one end of the connecting rod 24 is embedded in a groove block 25 through a pin shaft and is slidably connected with the groove block 25, one side of the groove block 25 is fixedly connected with the positioning plate 20, a connecting rod 1 23 is rotatably arranged in the middle of the connecting rod 24, one end of the connecting rod 1 23 is rotatably connected to one side of the positioning plate 20, and the other end is rotatably arranged with an adjusting ring 22, which is sleeved and slidably connected to the rotating column 21;

[0042] The dustproof shell 2 is also provided with a scraping and traction mechanism for finding the end of the steel belt;

[0043] The scraping and traction mechanism includes a mounting plate 6 fixedly connected to one side of the dustproof shell 2, two sliding rods 3 14 are slidably connected to the lower end of the right side of the mounting plate 6, an adjusting plate 34 is fixedly connected to the left end of the sliding rod 3 14, a scraper 38 is fixedly connected to the left end of the adjusting plate 34, sliding rods 4 36 are slidably connected to both sides of the upper end of the adjusting plate 34, and a pressure roller 37 is fixedly connected to the lower end of the sliding rod 4 36.

[0044] In this embodiment, Figure 2-Figure 4 , Fig. 9 As shown, a motor 8 is fixedly connected to the middle of the rear end surface of the dustproof shell 2, and the output end of the motor 8 is fixedly connected to the alternating plate 43. Motors 6 44 are fixedly connected to the upper and lower sides of the rear end surface of the alternating plate 43, and the output end of the motor 6 44 is fixedly connected to the rotating column 21.

[0045] A threaded rod 3 40 is threadedly connected to one side of the adjusting ring 22, and both ends of the threaded rod 3 40 are rotated on the rotating column 21. A motor 4 39 is fixedly connected to one side of the front end of the rotating column 21, and the output end of the motor 49 is fixedly connected to one end of the threaded rod 3 40.

[0046] Specifically, the inner hole of the steel strip roll is sleeved on the outer side of the positioning plate 20, and then the motor 4 39 is used to drive the threaded rod 3 40 to rotate, so that the adjusting ring 22 can slide, the connecting rod 1 23 and the connecting rod 24 can rotate, and multiple positioning plates 20 move radially at the same time until the positioning plate 20 fits with the inner hole wall of the steel strip roll, so that the steel strip roll can be fixed, so that the steel strip rolls with different inner hole diameters can be positioned, and the adaptability is high. Then, the motor 6 44 is used to drive the rotating column 21 to rotate, and the steel strip roll can be unwound. In addition, due to the expansion and contraction machine There are two structures, and they are symmetrically distributed at both ends of the alternating plate 43. Therefore, when the rotating column 21 on the upper side rotates and performs uncoiling, the other steel coil can be easily rolled up using a crane or a forklift. When the uncoiling of the steel coil on the upper side is completed, it is only necessary to use the motor 8 to drive the alternating plate 43 to rotate 180 degrees to switch to the other prepared steel coil for uncoiling. In this way, the double-head uncoiling method saves the downtime for loading, so that the production line can continuously perform uncoiling and feeding operations.

[0047] In this embodiment, Figure 2 and Figure 5 As shown, two slide bars 10 are slidably connected to one side of the upper end of the dustproof shell 2, the lower end of the slide bar 10 is fixedly connected to a frame 17, and clamping rollers 18 are rotatably provided at both ends of the frame 17. The upper end of the slide bar 10 is fixedly connected to a connecting block 9, and one end of the slide bar 10 is sleeved with a spring 11, the upper end of the spring 11 is fixedly connected to the connecting block 9, and the other end is fixedly connected to the dustproof shell 2.

[0048] Specifically, during the unwinding process, the steel strip may produce a certain inertia or rebound due to its own weight, curling state and material properties, which will affect the smooth unwinding work. Therefore, in order to avoid this problem, after the steel strip coil is installed on the upper expansion and contraction mechanism, the pressure roller 18 can press one side of the steel strip coil under the action of the slide bar 10 and the spring 11 without affecting the normal unwinding of the steel strip coil. The pressure roller 18 can effectively suppress one side of the steel strip to prevent it from shaking or deviation during the unwinding process, making the unwinding process smoother.

[0049] In this embodiment, Figure 1 , Figure 2 , Figure 5 , Figure 7As shown, a shell cover 3 is rotatably provided on one side of the front end of the dustproof shell 2, sliding rods 12 are slidably connected to both sides of the upper end of the mounting plate 6, and a baffle 15 is fixedly connected to the lower end of the sliding rod 12, an electric push rod 7 is fixedly connected to one side of the upper end surface of the mounting plate 6, and the piston end of the electric push rod 7 is fixedly connected to one side of the upper end surface of the baffle 15, a baffle 19 is slidably connected to one side of the mounting plate 6, and a threaded rod 33 is threadedly connected to the upper end of the baffle 19, and both ends of the threaded rod 33 are rotatably provided on the mounting plate 6, a motor 16 is fixedly connected to one side of the upper end of the mounting plate 6, and the output end of the motor 16 is fixedly connected to one end of the threaded rod 33.

[0050] Specifically, when the existing steel strip unwinding machine is in use, in order to prevent the dust generated when the steel strip is unwinding from affecting the working environment, a noise reduction cover is provided to cover the steel strip, and a discharge slot is provided on the noise reduction cover, and the steel strip can be led out from the discharge slot. However, since the specifications of the discharge slot are fixed, when the steel strip is led out from the discharge slot, there may be a large redundant space between the steel strip and the discharge slot, and some dust is easily discharged outward from the redundant space, thereby affecting the environment;

[0051] Therefore, in order to avoid the above problems, when the present embodiment is in use, after the steel strip is coiled and installed inside the dustproof shell 2, the shell cover 3 is closed, and when the end of the steel strip passes through the discharge slot, the electric push rod 1 7 and the motor 2 16 are started respectively according to the width and thickness of the steel strip, and the electric push rod 1 7 drives the baffle 15 to descend, and on the premise that the baffle 15 does not contact the steel strip, the distance between the baffle 15 and the steel strip is minimized to the greatest extent. Similarly, the motor 2 16 drives the threaded rod 2 33 to rotate, so that the baffle 2 19 approaches the steel strip and also minimizes the distance between it and the steel strip to the greatest extent. At this time, the baffle 1 15 and the baffle 2 19 can cover the redundant space between the steel strip and the discharge slot to the greatest extent without affecting the normal unwinding of the steel strip, and the remaining redundant space is small and can be ignored, thereby further reducing the amount of dust discharged from the discharge slot and reducing the impact on the working environment.

[0052] In this embodiment, Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 8 , Fig.10 As shown, one side of the lower end of the mounting plate 6 is fixedly connected with an electric push rod 13 , and the piston end of the electric push rod 13 is fixedly connected to one side of the adjustment plate 34 .

[0053] One side of the upper end of the adjustment plate 34 is fixedly connected with an electric push rod 4 35, and the piston end of the electric push rod 4 35 is fixedly connected to one side of the pressure roller 37.

[0054] The base 1 is also provided with a limited translation mechanism for driving the end of the steel belt to move;

[0055] The limited translation mechanism includes a displacement plate 4 slidably connected to one side of the base 1, a scissors-type lifting mechanism 5 is arranged on the upper end surface of the displacement plate 4, a receiving plate 26 is arranged on the upper end of the scissors-type lifting mechanism 5, one side of the upper end surface of the receiving plate 26 is slidably connected to a limiting plate 1 28, and the other side is fixedly connected to a limiting plate 2 30, and a pressure plate 32 is slidably connected to the inner sides of the limiting plate 1 28 and the limiting plate 2 30.

[0056] One side of the upper end surface of the limit plate 1 28 and the limit plate 2 30 is fixedly connected with an electric push rod 3 31, the piston end of the electric push rod 31 is fixedly connected to one side of the upper end surface of the pressure plate 32, the lower end of the limit plate 1 28 is threadedly connected with a threaded rod 1 27, both ends of the threaded rod 1 27 are rotatably set on the supporting plate 26, one side of the front end of the supporting plate 26 is fixedly connected with a motor 3 29, and the output end of the motor 3 29 is fixedly connected to one end of the threaded rod 1 27.

[0057] A threaded rod 42 is threadedly connected to one side of the lower end of the displacement plate 4. Both ends of the threaded rod 42 are rotatably set on the base 1. A motor 5 41 is fixedly connected to one side of the right end of the base 1. The output end of the motor 5 41 is fixedly connected to one end of the threaded rod 42.

[0058] Specifically, when the existing steel strip unwinding machine is in use, after the steel strip is fixed, it is necessary to manually find its end and move it to the specified position of the subsequent processing equipment. The whole process is not only labor-intensive, but also there may be errors in manual operation, resulting in the steel strip end not being accurately placed in the specified position of the subsequent processing equipment, affecting the smooth progress of the subsequent processing work, and easily resulting in the produced products not meeting the requirements;

[0059] Therefore, in order to solve the above-mentioned problem, when the present embodiment is in use, after the steel strip roll is installed on the expansion and contraction mechanism on the upper side, the electric push rod 2 13 is used to drive the adjustment plate 34 to move, so that the scraper 38 is close to the surface of the steel strip roll and fits with the surface of the steel strip roll, and then the steel strip roll is driven to rotate clockwise. When the end of the steel strip roll contacts the scraper 38, the end of the steel strip roll will be separated by the blocking effect of the scraper 38, thereby eliminating the process of manually finding the end of the steel strip and saving manpower; and the end of the steel strip will be placed on the scraper 38, and then the electric push rod 4 35 will be used to drive the pressure roller 37 to approach the end of the steel strip until its end is pressed, and then the electric push rod 2 13 will be used to drive the adjustment plate 34 to move out of the dustproof shell 2. At the same time, the steel strip roll is also rotating. When the end of the steel strip is in When the receiving plate 26 is above the receiving plate 26, the scissor lift mechanism 5 can be used to drive the receiving plate 26 to rise. The scissor lift mechanism 5 is a prior art and will not be described in detail until the end of the steel belt can be supported by the receiving plate 26, and then the pressure roller 37 can be loosened and away from the steel belt. At this time, since the end of the steel belt is supported by the receiving plate 26, the motor 5 41 can drive the threaded rod 4 42 to rotate, so that the displacement plate 4 slides on the base 1. At the same time, in conjunction with the unwinding of the steel belt, the end of the steel belt can be transported and moved to the specified position of the subsequent processing equipment, thereby avoiding the situation where the placement orientation is deviated due to errors when the steel belt end is manually placed in the specified position of the processing equipment, resulting in the processing work being affected, and the product produced does not meet the requirements.

[0060] Since the receiving plate 26 provides support for the end of the steel belt, the end of the steel belt may become uneven and deviated due to rebound or external force, which may cause the end of the steel belt to be unable to smoothly enter the subsequent processing equipment. Therefore, in order to avoid this problem, when the end of the steel belt is placed above the receiving plate 26, the motor 3 29 can be used to drive the threaded rod 1 27 to rotate, so that the limit plate 1 28 approaches the limit plate 2 30 to clamp the two sides of the steel belt, thereby effectively preventing the end of the steel belt from deviating on the receiving plate 26. At the same time, the electric push rod 3 31 is used to drive the pressure plate 32 to descend, so that the steel belt can be pressed. Thereby, rebound of the end of the steel strip is avoided, and when the end of the steel strip moves to the specified position, the pressure plate 32 no longer presses the steel strip, and the distance between the pressure plate 32 and the steel strip is adjusted according to the thickness of the steel strip, so that the pressure plate 32 will neither press the steel strip nor allow the steel strip to slide on the receiving plate 26 in a flat state. That is, under the effect of unwinding, the end of the steel strip can slide between the pressure plate 32 and the receiving plate 26 in a flat state and enter the specified position of the processing equipment, thereby ensuring that the end of the steel strip can enter the specified position in the subsequent processing equipment in a flat state, thereby improving the processing efficiency.

[0061] Working principle: the inner hole of the steel strip roll is sleeved on the outside of the positioning plate 20, and then the motor 4 39 is used to drive the threaded rod 3 40 to rotate, so that the adjusting ring 22 can slide, the connecting rod 1 23 and the connecting rod 24 can rotate, and multiple positioning plates 20 move radially at the same time until the positioning plate 20 fits with the inner hole wall of the steel strip roll, so that the steel strip roll can be fixed, so that steel strip rolls with different inner hole diameters can be positioned, with high adaptability, and then the motor 6 44 is used to drive the rotating column 21 to rotate, so that the steel strip roll can be unwound. In addition, since there are two expansion and contraction mechanisms, and they are symmetrically distributed at both ends of the alternating plate 43, when the rotating column 21 on the upper side rotates and unwinds, the other steel strip roll can be easily unwound using a crane or a forklift. The coiling operation is performed. When the unwinding of the upper steel coil is completed, it is only necessary to use the motor 8 to drive the alternating plate 43 to rotate 180 degrees to switch to another prepared steel coil for unwinding operation. Thus, the double-head unwinding method saves the downtime for loading, so that the production line can continuously perform unwinding and feeding operations. During the unwinding process, the steel strip may produce a certain inertia or rebound due to its own weight, curling state and material properties, which will affect the smooth unwinding work. Therefore, in order to avoid this problem, after the steel strip is installed on the upper expansion and contraction mechanism, the pressing roller 18 can press one side of the steel strip under the action of the slide bar 10 and the spring 11, without affecting the normal unwinding of the steel strip. The tightening roller 18 can effectively suppress one side of the steel strip to prevent it from shaking or deviating during the unwinding process, making the unwinding process smoother; the electric push rod 13 is used to drive the adjustment plate 34 to move, so that the scraper 38 is close to the surface of the steel strip coil and fits with the surface of the steel strip coil, and then the steel strip coil is driven to rotate clockwise. When the end of the steel strip coil contacts the scraper 38, the end of the steel strip coil will be separated by the blocking effect of the scraper 38, thereby eliminating the process of manually finding the end of the steel strip and saving manpower; and the end of the steel strip will be placed on the scraper 38, and then the electric push rod 35 will be used to drive the pressure roller 37 to approach the end of the steel strip until its end is pressed, and then the electric push rod 13 will drive the adjustment plate 34 to remove the dust The discharge slot is moved in the shell 2, and the electric push rod 1 7 and the motor 2 16 are started respectively according to the width and thickness of the steel strip. The electric push rod 1 7 drives the baffle 15 to descend, and the distance between the baffle 15 and the steel strip is minimized to the greatest extent under the premise that the baffle 15 does not contact the steel strip. Similarly, the motor 2 16 drives the threaded rod 2 33 to rotate, so that the baffle 2 19 approaches the steel strip, and also minimizes the distance between it and the steel strip. At this time, the baffle 15 and the baffle 2 19 can cover the redundant space between the steel strip and the discharge slot to the greatest extent without affecting the normal unwinding of the steel strip, and the remaining redundant space is small and can be ignored, thereby further reducing the amount of dust discharged from the discharge slot and reducing the impact on the working environment;At the same time, the steel strip coil is also rotating. When the end of the steel strip is above the receiving plate 26, the scissor lift mechanism 5 can be used to drive the receiving plate 26 to rise. The scissor lift mechanism 5 is a prior art and will not be described in detail until the end of the steel strip can be supported by the receiving plate 26. Then the pressure roller 37 can be loosened and away from the steel strip. At this time, since the end of the steel strip is supported by the receiving plate 26, the motor 5 41 can drive the threaded rod 4 42 to rotate, so that the displacement plate 4 slides on the base 1. At the same time, in conjunction with the unwinding of the steel strip, the end of the steel strip can be transported and moved to the specified position of the subsequent processing equipment, thereby avoiding the situation where the placement orientation is deviated due to errors when the steel strip end is manually placed in the specified position of the processing equipment, resulting in the processing work being affected, and then the produced product does not meet the requirements; since the receiving plate 26 provides a supporting effect for the end of the steel strip, the end of the steel strip may be uneven and offset due to rebound or external force, which makes it impossible for the end of the steel strip to enter smoothly To the subsequent processing equipment, therefore, in order to avoid this problem, when the end of the steel strip is placed above the receiving plate 26, the motor 3 29 can be used to drive the threaded rod 1 27 to rotate, so that the limit plate 1 28 is close to the limit plate 2 30, and the two sides of the steel strip are clamped, thereby effectively preventing the end of the steel strip from deviating on the receiving plate 26. At the same time, the electric push rod 3 31 is used to drive the pressure plate 32 to descend, so as to press the steel strip, thereby avoiding the rebound of the end of the steel strip. Moreover, when the end of the steel strip moves to the specified position, , so that the pressing plate 32 no longer presses the steel strip, and the distance between the pressing plate 32 and the steel strip is adjusted according to the thickness of the steel strip, so that the pressing plate 32 will not press the steel strip, and the steel strip can slide on the receiving plate 26 in a flat state, that is, under the action of unwinding, the end of the steel strip can slide between the pressing plate 32 and the receiving plate 26 in a flat state and enter the specified position of the processing equipment, thereby ensuring that the end of the steel strip can enter the specified position in the subsequent processing equipment in a flat state, thereby improving the processing efficiency. ;

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double-head uncoiler for cold-rolled steel strip, comprising a base (1), characterized in that: A dust cover (2) is fixedly connected to one side of the upper end of the base (1); a discharge slot for allowing the steel strip to be led out of the dust cover (2) is arranged on one side of the right end of the dust cover (2); an alternating plate (43) is rotatably arranged on one side of the rear end surface of the inner cavity of the dust cover (2); and two expansion and contraction mechanisms for positioning the steel strip coil are arranged on the alternating plate (43); The expansion and contraction mechanism comprises a rotating column (21) rotatably arranged on one side of the front end surface of the alternating plate (43); a plurality of connecting rods (24) are rotatably arranged on the rear side of the rotating column (21); one end of the connecting rod (24) is embedded in a groove block (25) through a pin shaft and is slidably connected thereto; one side of the groove block (25) is fixedly connected to a positioning plate (20); a connecting rod (23) is rotatably arranged in the middle of the connecting rod (24); one end of the connecting rod (23) is rotatably connected to one side of the positioning plate (20); and the other end is rotatably arranged with an adjusting ring (22); the adjusting ring (22) is sleeved and slidably connected to the rotating column (21); The dustproof shell (2) is also provided with a scraping and pulling mechanism for finding the end of the steel belt; The scraping and traction mechanism comprises a mounting plate (6) fixedly connected to one side of the dustproof shell (2); the lower right end of the mounting plate (6) is slidably connected to two sliding rods (14); the left end of the sliding rod (14) is fixedly connected to an adjusting plate (34); the left end of the adjusting plate (34) is fixedly connected to a scraper (38); the upper ends of the adjusting plate (34) are slidably connected to sliding rods (36); the lower ends of the sliding rods (36) are fixedly connected to a pressure roller (37).

2. The double-head uncoiler for cold-rolled steel strip according to claim 1, characterized in that: A motor 1 (8) is fixedly connected to the middle of the rear end surface of the dustproof shell (2), and the output end of the motor 1 (8) is fixedly connected to the alternating plate (43). Motor 6 (44) is fixedly connected to both upper and lower sides of the rear end surface of the alternating plate (43), and the output end of the motor 6 (44) is fixedly connected to the rotating column (21).

3. The double-head uncoiler for cold-rolled steel strip according to claim 1, characterized in that: One side of the adjusting ring (22) is threadedly connected to a threaded rod (40), both ends of the threaded rod (40) are rotated on the rotating column (21), a front end of the rotating column (21) is fixedly connected to a motor (39), and an output end of the motor (39) is fixedly connected to one end of the threaded rod (40).

4. The double-head uncoiler for cold-rolled steel strip according to claim 1, characterized in that: One side of the upper end of the dustproof shell (2) is slidably connected to two sliding rods (10), the lower end of the sliding rod (10) is fixedly connected to a frame (17), and pressure rollers (18) are rotatably provided at both ends of the frame (17), the upper end of the sliding rod (10) is fixedly connected to a connecting block (9), and one end of the sliding rod (10) is sleeved with a spring (11), the upper end of the spring (11) is fixedly connected to the connecting block (9), and the other end is fixedly connected to the dustproof shell (2).

5. The double-head uncoiler for cold-rolled steel strip according to claim 1, characterized in that: A shell cover (3) is rotatably provided on one side of the front end of the dustproof shell (2); two sliding rods (12) are slidably connected to both sides of the upper end of the mounting plate (6); a baffle plate (15) is fixedly connected to the lower end of the sliding rod (12); an electric push rod (7) is fixedly connected to one side of the upper end surface of the mounting plate (6); a piston end of the electric push rod (7) is fixedly connected to one side of the upper end surface of the baffle plate (15); a baffle plate (19) is slidably connected to one side of the mounting plate (6); a threaded rod (33) is threadedly connected to the upper end of the baffle plate (19); both ends of the threaded rod (33) are rotatably provided on the mounting plate (6); a motor (16) is fixedly connected to one side of the upper end of the mounting plate (6); an output end of the motor (16) is fixedly connected to one end of the threaded rod (33).

6. The double-head uncoiler for cold-rolled steel strip according to claim 1, characterized in that: One side of the lower end of the mounting plate (6) is fixedly connected to an electric push rod 2 (13), and the piston end of the electric push rod 2 (13) is fixedly connected to one side of the adjustment plate (34).

7. The double-head uncoiler for cold-rolled steel strip according to claim 6, characterized in that: One side of the upper end of the adjustment plate (34) is fixedly connected to an electric push rod four (35), and the piston end of the electric push rod four (35) is fixedly connected to one side of the pressure roller (37).

8. The double-head uncoiler for cold-rolled steel strip according to claim 1, characterized in that: The base (1) is also provided with a limited translation mechanism for driving the end of the steel belt to move; The position-limiting translation mechanism comprises a displacement plate (4) slidably connected to one side of the base (1); a scissor lift mechanism (5) is arranged on the upper end surface of the displacement plate (4); a receiving plate (26) is arranged on the upper end of the scissor lift mechanism (5); one side of the upper end surface of the receiving plate (26) is slidably connected to a first position-limiting plate (28) and the other side is fixedly connected to a second position-limiting plate (30); and a pressure plate (32) is slidably connected to the inner sides of the first position-limiting plate (28) and the second position-limiting plate (30).

9. The double-head uncoiler for cold-rolled steel strip according to claim 8, characterized in that: One side of the upper end surface of the limit plate 1 (28) and the limit plate 2 (30) is fixedly connected with an electric push rod 3 (31), and the piston end of the electric push rod 3 (31) is fixedly connected to one side of the upper end surface of the pressure plate (32). The lower end of the limit plate 1 (28) is threadedly connected with a threaded rod 1 (27), and both ends of the threaded rod 1 (27) are rotatably arranged on the receiving plate (26). One side of the front end of the receiving plate (26) is fixedly connected with a motor 3 (29), and the output end of the motor 3 (29) is fixedly connected to one end of the threaded rod 1 (27).

10. The double-head uncoiler for cold-rolled steel strip according to claim 8, characterized in that: A threaded rod four (42) is threadedly connected to one side of the lower end of the displacement plate (4), and both ends of the threaded rod four (42) are rotatably arranged on the base (1). A motor five (41) is fixedly connected to one side of the right end of the base (1), and the output end of the motor five (41) is fixedly connected to one end of the threaded rod four (42).

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