CN211197975U - A pressure roller system of a steel strip unwinder - Google Patents

Abstract

The utility model relates to a pinch roller system of steel band unreeling machine, it includes frame and center pin, and the center pin level sets up, and center pin one end gyration is supported in the frame, is provided with pinch roller device in the frame, pinch roller device includes fixed axle and two pressure arms, and the fixed axle is fixed in the frame to the length direction of fixed axle is parallel with the length direction of center pin, and two pressure arm one ends are all rotated and are connected on the fixed axle, and two pressure arms set up the both sides at the center pin relatively, and are provided with the clamping piece between two pressure arms. The utility model discloses have the frictional force action area between the increase steel band, reduce the effect that the steel band coil of strip loosens.

Description

A pressure roller system of a steel strip unwinder

technical field

The utility model relates to the technical field of steel strip unwinding, in particular to a pressing wheel system of a steel strip unwinding machine.

Background technique

During the production of door panels or curtain wall panels, the raw materials used are usually arranged in rolls for convenient transportation and relatively flatness. The rolled raw materials need to be unrolled during use, so a steel strip unwinder needs to be used to roll them. The steel strip roll is unrolled to make the steel strip roll flat into a single-layer steel strip, and then the steel strip is cut, punched and bent to complete the production of door panels and curtain wall panels.

The patent document with the authorization announcement number CN105312355B discloses a steel strip uncoiler, including a frame, the frame is rotatably connected to a central shaft, the central shaft is connected with a driving device, and the central shaft is provided with a support block, the support block and the center A strut is arranged between the shafts, a sliding seat is arranged on the central axis, and a hydraulic cylinder is connected to the sliding seat. One end of the strut is hinged with the sliding seat, and the other end is hinged with the support block. When the hydraulic cylinder is output, the sliding seat moves along the length direction of the central axis, so that the strut pushes the support block to move away from the center of the central axis. At the same time, a pressing wheel device is also provided on the frame. A rotating shaft installed on the frame, a connecting rod is arranged on the rotating shaft, one end of the connecting rod is fixed on the rotating shaft, and the other end is provided with a pressing wheel, which is used to press the outer side of the steel strip coil, and the steel strip coil is pressed. Squeeze to prevent the coil from loosening.

However, in such a structure, when a pressure roller is subjected to the force of the steel belt extending outward, the pressure roller is likely to rotate, thereby loosening the steel belt.

Utility model content

The purpose of the utility model is to provide a pressure roller system of a steel strip unwinding machine, which has the effect of increasing the frictional force action area between the steel strips and reducing the loosening of the steel strip coils.

The above-mentioned purpose of the present invention is achieved through the following technical solutions:

A pinch roller system of a steel strip unwinder, comprising a frame and a central shaft, the central shaft is arranged horizontally, one end of the central shaft is swivelly supported on the frame, the frame is provided with a pinch roll device, and the pinch roll device includes a fixed The shaft and the two pressing arms, the fixed shaft is fixed on the frame, and the length direction of the fixed shaft is parallel to the length direction of the central shaft, one end of the two pressing arms is rotatably connected to the fixed shaft, and the two pressing arms are oppositely arranged in the center Clamps are arranged on both sides of the shaft and between the two pressing arms.

By adopting the above technical solution, when in use, the two pressing arms are opposite to the two sides of the central shaft, and after the steel strip roll is sleeved on the central shaft, the two pressing arms are clamped on the steel strip roll, and the two pressing arms are Two positions of the steel strip coil, the steel strip between the two positions has an arc formed by the steel strip, and the two pressing arms squeeze the steel strip under the action of the clamping piece, so that the The steel strips are all in contact with the steel strips in the inner layer, which increases the frictional force area between the steel strips and reduces the loosening of the steel strip coils.

The utility model is further provided that: the clamping piece is a tension spring, and the two ends of the tension spring are respectively fixed in the middle of the two pressing arms.

By adopting the above technical solution, the clamping member is a tension spring, the two ends of the tension spring are respectively fixed in the middle of the two pressing arms, and the two pressing arms are pulled by the tension spring, so that the two pressing arms are clamped under the force of the tension spring. The structure is relatively simple, and the force of the two pressing arms on the steel belt can be easily maintained at the same time.

The utility model is further configured as follows: a hydraulic cylinder is arranged between the two pressing arms, two ends of the hydraulic cylinder are respectively hinged on the two pressing arms, and the hydraulic cylinder is single-acting.

By adopting the above technical solution, the hydraulic cylinder is a single-acting working mode, and the two pressing arms are opened when the hydraulic cylinder is extended, so that the staff can more easily wrap the steel strip on the central shaft, while the hydraulic cylinder does not work When the tension spring pulls the hydraulic cylinder to contract.

The utility model is further provided as follows: the end of the pressing arm away from the fixed shaft is provided with a pressing seat, the pressing seat comprises a bearing and a roller, the bearing is installed on the pressing arm, the roller is rotatably supported on the bearing, and the roller The centerline is parallel to the centerline of the central axis.

By adopting the above technical solution, the support is installed on the pressing arm, the roller is swivelly supported on the support, and the roller is in contact with the outer side of the steel coil. Minor damage to the coil.

The utility model is further configured as follows: the support is arc-shaped, the middle part of the support is rotatably connected with the pressing arm, the arc-shaped opening of the support is facing the central axis, there are two rollers, and the two rollers are respectively on the side of the support. both ends.

By adopting the above technical solution, the support is arranged in an arc shape, there are two rollers, and the two rollers are located at both ends of the support, so that the force of the pressing arm on the support is directed to the center of the central axis, thereby further reducing the coil volume of the steel strip. release.

The utility model is further configured as follows: the pressing arms are arc-shaped, and the arc-shaped openings of the two pressing arms are arranged oppositely.

By adopting the above technical solution, the pressing arms are arc-shaped, and the arc-shaped openings of the two pressing arms are both facing the steel strip coil, so that when the steel strip coil is placed on the central axis, the steel strip coil is in the process of changing its diameter, keeping the The end of the pressing arm away from the fixed shaft is in contact with the steel coil.

The utility model is further configured as follows: the end of the central shaft away from the rotating disk is provided with a support device, the support device comprises a column, the column is arranged vertically, the lower end of the column is provided with a base, the base is provided with a mounting hole, and the lower end of the column abuts against In the installation hole, the upper end of the column is provided with a telescopic assembly, a support seat is installed on the telescopic assembly, and two support wheels are arranged on the support seat. diameter of.

By adopting the above technical solution, a support seat is installed on the telescopic assembly, and two support wheels are arranged on the support seat to support the central shaft. When the steel strip coil needs to be replaced, the support seat can be moved down by the telescopic assembly, and then removed from the base. The vertical column is removed from the top, so that the installation of the steel strip coil is more convenient, and the support at both ends of the central shaft is relatively stable.

The utility model is further configured as follows: the telescopic assembly includes a stud and a retaining ring, the lower end of the stud is inserted into the upper end of the column, the retaining ring is threadedly connected to the stud, and the retaining ring abuts on the upper end of the column, and the retaining ring is A force applying rod is arranged on the side wall.

By adopting the above technical solution, the lower end of the stud is inserted into the upper end of the column, the retaining ring is abutted on the upper end of the column, the force application rod is convenient for the staff to rotate the retaining ring, and the retaining ring is connected with the thread of the stud, so that the stud is in the upper end of the column. It is more convenient to move up and down in the column.

To sum up, the beneficial technical effects of the present utility model are:

1. With the two pressing arms facing each other on both sides of the central shaft, after the steel strip roll is sleeved on the central shaft, the two pressing arms are clamped on the steel strip roll, and the two pressing arms are clamped on the two sides of the steel strip roll. position, the steel strip between the two positions is coiled with an arc formed by the steel strip, and the two pressing arms squeeze the steel strip under the action of the clamping piece, so that the steel strip between the two pressing arms is opposite to the inner layer. The steel strips are all in contact with each other, which increases the frictional force area between the steel strips and reduces the loosening of the steel strip coils;

2. The hydraulic cylinder is a single-acting working mode, and the two pressing arms are opened when the hydraulic cylinder is extended, so that the staff can more easily wrap the steel strip on the central shaft, and when the hydraulic cylinder is not working, pull The spring pulls the hydraulic cylinder to contract;

3. The support is set in an arc shape, there are two rollers, and the two rollers are located at both ends of the support, so that the force of the pressing arm on the support is directed to the center of the central axis, thereby further reducing the loosening of the steel strip.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the partial enlarged schematic diagram of A part in Fig. 1;

3 is a schematic diagram of the internal structure of the central shaft;

Fig. 4 is the structural schematic diagram of the utility model omitting the frame;

5 is a schematic structural diagram of a support device;

Figure 6 is a schematic view of the structure of the roller device.

In the figure, 1, frame; 2, central axis; 21, support block; 3, support device; 31, column; 32, base; 33, mounting hole; 34, telescopic assembly; 341, stud; 342, retaining ring ; 343, force bar; 35, support seat; 36, support wheel; 4, steel strip coil; 5, rotary disc; 51, T-shaped groove; 52, T-shaped block; 53, teeth; 6, pressure wheel device ;61, fixed shaft; 62, pressing arm; 63, pressing seat; 631, support; 632, roller; 64, tension spring; 65, hydraulic cylinder; 71, screw rod; 72, driving motor; 73, nut; 74 , connecting rod; 8, tensioning device; 81, slider; 82, chute; 83, limit surface; 84, compression spring; 85, guide sleeve; 86, guide rod; 91, gear; 92, worm gear; 93 , worm; 94, flywheel; 95, three-phase asynchronous motor.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Referring to FIG. 1, it is a steel strip unwinder disclosed by the utility model, comprising a frame 1 and a central shaft 2, the central shaft 2 is arranged horizontally, one end of the central shaft 2 is swivelly supported on the frame 1, and the other end is provided with a The support device 3, the central shaft 2 is used to sleeve the steel strip coil 4, and the diameter of the central hole of the steel strip coil 4 is larger than the diameter of the central shaft 2, and a rotary disk 5 is provided at the end of the central shaft 2 away from the support device 3, and the rotation The center of the disc 5 coincides with the center of the central shaft 2, the rotating disc 5 is fixed on the central shaft 2, a support block 21 is arranged between the central shaft 2 and the steel strip coil 4, and the support block 21 is installed on the central shaft 2 and abuts against it. It is connected to the inner wall of the center hole of the steel strip coil 4, so that the steel strip coil 4 is relatively fixed with the central shaft 2. When the central shaft 2 rotates, the central shaft 2 can carry the steel strip coil 4 for unwinding.

2 and 4, a T-shaped groove 51 is provided on the side of the rotating disk 5 close to the support block 21, and the length direction of the T-shaped groove 51 is along the radial direction of the rotating disk 5. The support block 21 has four, four The support blocks 21 are evenly distributed along the circumference of the central axis 2 , and each support block 21 corresponds to a T-shaped groove 51 ; a T-shaped block 52 is arranged in the T-shaped groove 51 , and the T-shaped block 52 is slidingly matched with the T-shaped groove 51 , the T-shaped block 52 is fixed on the support block 21 , so that the support block 21 can slide along the length direction of the T-shaped groove 51 , so that the support block 21 is loosened or pressed against the steel strip coil 4 .

Referring to FIG. 3, a screw 71 is provided inside the central shaft 2, the center line of the screw 71 coincides with the center line of the central shaft 2, both ends of the screw 71 are rotatably supported on the central shaft 2, and the end of the screw 71 is provided with a drive The motor 72 and the driving motor 72 are fixed on the rotary disk 5, and the output end of the driving motor 72 is coaxially fixed on the end of the screw rod 71; 73. Two nuts 73 are threadedly connected to both ends of the screw rod 71, and the nuts 73 are located in the central shaft 2, and the nuts 73 are slidably fitted on the central shaft 2. When the screw rod 71 rotates, the nuts 73 move along the length direction of the screw rod 71, And the two nuts 73 are relatively close or far apart.

Referring to FIG. 3 , two connecting rods 74 are provided on each support block 21 , the lengths of the two connecting rods 74 are equal, one end of the two connecting rods 74 is hinged on the support block 21 , and the other end is connected with a tensioning device 8. The tensioning device 8 is installed on the two nuts 73 . One end of the two connecting rods 74 away from the support block 21 is inclined in the direction of the middle position of the screw rod 71. Under the action of the tensioning device 8, the connecting rods 74 rotate around the hinge point with the support block 21, so that the two connecting rods 74 At the same time, the support block 21 is pushed to move, and the moving distance of the support block 21 at both ends of the central axis 2 is equal, so that the support block 21 can fix the steel strip coils 4 with center holes of various diameters, and when fixed, the support block 21 The contact surface with the center hole is larger, and the fixing is relatively firm.

Referring to FIG. 3 , the tensioning device 8 includes two sliding blocks 81 . The two sliding blocks 81 are oppositely arranged on the two nuts 73 . The nuts 73 are provided with sliding grooves 82 , and the sliding blocks 81 are slidably fitted in the sliding grooves 82 . The length direction of the chute 82 is arranged along the length direction of the screw 71, and the end of the chute 82 away from the middle of the screw 71 is provided with a limiting surface 83, and the limiting surface 83 is used to push the slider 81 to move to the middle of the screw 71; two A compression spring 84 is arranged between the sliders 81, a guide sleeve 85 and a guide rod 86 are arranged in the middle of the compression spring 84, the guide rod 86 is inserted into the guide sleeve 85, and the end of the guide rod 86 away from the guide sleeve 85 is fixed to a slider 81 The end of the guide sleeve 85 away from the guide rod 86 is fixed on the other slider 81, the two ends of the compression spring 84 are respectively abutted on the two sliders 81, and the direction of the force of the compression spring 84 drives the two sliders 81 Move back and forth. The ends of the two links 74 on the same support block 21 away from the support block 21 are hinged to the two sliders 81 respectively.

When in use, the steel strip coil 4 is first set on the four support blocks 21, so that the four support blocks 21 are located in the central hole of the steel strip coil 4, the driving motor 72 works, the driving motor 72 rotates with the screw rod 71, and the end of the screw rod 71 rotates. The nut 73 moves opposite to each other, so that under the force of the compression spring 84, the two sliders 81 move with the nut 73, so that the support block 21 moves to the side wall of the central hole. When the support block 21 abuts against the side wall of the central hole At the position, the slider 81 stops moving, and the nut 73 continues to move independently, so that the slider 81 is separated from the limit surface 83; even in the process of unwinding the steel strip coil 4, the nut 73 moves along the length of the screw rod 71 in a small amount. , the force of the compression spring 84 can still ensure the extrusion of the slider 81; after the steel strip coil 4 is unwound, the driving motor 72 reverses the work, and the driving motor 72 rotates with the screw 71, so that the two nuts 73 move relative to each other , so that the limiting surface 83 on the slider 81 pushes the two sliders 81 to move relative to each other, so that the support block 21 moves toward the center of the central axis 2 , and the steel strip coil 4 is released.

Referring to FIG. 4 , teeth 53 are provided on the side wall of the rotating disk 5, the rotating disk 5 is connected with a gear 91, the number of teeth 53 on the rotating disk 5 is greater than the number of teeth of the gear 91, and the gear 91 is rotatably supported on the frame 1, The gear 91 meshes with the teeth 53 on the side wall of the rotating disk 5 , so that the gear 91 is connected with the rotating disk 5 in a driving manner. A worm wheel 92 is coaxially fixed on the gear 91, the worm wheel 92 is connected with a worm 93, the worm 93 meshes with the worm wheel 92, and the worm 93 rotates to support the frame 1, and the helix angle of the worm 93 is greater than that between the worm wheel 92 and the worm 93 Equivalent friction angle, so that the worm 93 can drive the worm wheel 92, and the worm wheel 92 can drive the worm 93 in the reverse direction. The worm 93 is rotatably supported on the frame 1. One end of the worm 93 is coaxially fixed with a flywheel 94, and the other end is provided with a three-phase asynchronous motor 95. The output end of the three-phase asynchronous motor 95 is coaxially fixed on the worm 93. The three-phase asynchronous motor 95 is fixed on the frame 1. When the three-phase asynchronous motor 95 brakes, the three-phase asynchronous motor 95 generates a reverse braking force on the worm 93. When the rotating disk 5 rotates, the rotating disk 5 drives the gear 91. The gear 91 drives the worm wheel 92, and the worm wheel 92 receives the reverse force of the worm 93, so that the rotation speed of the rotary disk 5 is rapidly reduced. When the three-phase asynchronous motor 95 works, the three-phase asynchronous motor 95 drives the worm 93 to rotate, the worm 93 drives the worm wheel 92, and the worm wheel 92 rotates synchronously with the gear 91, so that the rotating disc 5 rotates, and the steel strip coil 4 on the central shaft 2 is rotated. Unwind.

Referring to FIG. 5 , the support device 3 includes a column 31 , the column 31 is arranged vertically, the lower end of the column 31 is provided with a base 32 , the base 32 is provided with a mounting hole 33 , the lower end of the column 31 abuts in the mounting hole 33 , and the upper end of the column 31 A telescopic assembly 34 is provided. The telescopic assembly 34 includes a stud 341 and a retaining ring 342. The column 31 is a hollow structure. The lower end of the stud 341 is inserted into the upper end of the column 31, and the upper end is provided with a support seat 35. On the column 341, a retaining ring 342 is pressed against the upper end surface of the upright column 31. A force applying rod 343 is arranged on the side wall of the retaining ring 342, and the force applying rod 343 is arranged along the radial direction of the retaining ring 342. The support seat 35 It is fixed on the upper end of the stud 341, so that the support seat 35 is supported on the side wall of the central shaft 2, and two support wheels 36 are provided on the support seat 35. The support wheels 36 are swivelly supported on the support seat 35, and the The center line is parallel to the center line of the center shaft 2, and the distance between the two support wheels 36 is smaller than the diameter of the center shaft 2, so that when the support wheels 36 are supported on the center shaft 2, the two support wheels 36 are at the same time with the center shaft 2. The side walls are tangent. When in use, the stud 341 can be moved upward or downward by rotating the retaining ring 342 , and when moving downward, the support wheel 36 can be separated from the side wall of the central shaft 2 , and the column 31 can be removed from the base 32 .

Referring to Figure 1 and Figure 6, a pressing wheel device 6 is provided on the outer wall of the steel strip coil 4. The pressing wheel device 6 includes a fixed shaft 61, a pressing arm 62 and a pressing seat 63, and the fixed shaft 61 is fixed on the frame 1, The length direction of the fixed shaft 61 is parallel to the length direction of the central axis 2 , the pressing arm 62 is arc-shaped as a whole, there are two pressing arms 62 , the two arc-shaped openings of the pressing arm 62 are oppositely arranged, and the two pressing arms 62 are opposite to each other. There is a steel strip coil 4, one end of the pressing arm 62 is rotatably connected to the fixed shaft 61, the pressing seat 63 is provided with one end of the pressing arm 62 away from the fixed shaft 61, and a tension spring 64 is arranged between the two pressing arms 62 to pull The two ends of the spring 64 are respectively fixed in the middle of the two pressing arms 62, and the direction of the force of the tension spring 64 drives the two pressing arms 62 to contract inwardly, so that the pressing seat 63 abuts on the outer wall of the steel strip coil 4, and then Press the steel coil 4 to reduce the loosening of the steel coil 4.

Referring to FIG. 6 , the pressing seat 63 includes a bearing 631 and a roller 632 , the bearing 631 is arc-shaped, and the arc-shaped opening of the bearing 631 faces the steel strip coil 4 , and the middle of the bearing 631 is rotatably connected to the pressing arm 62 The rotation axis of the support 631 and the pressing arm 62 is parallel to the center line of the central axis 2; there are two rollers 632, and the two rollers 632 are respectively connected to the two ends of the support 631 in rotation, and the center line of the roller 632 and the center axis The center lines of 2 are parallel, and the roller 632 is pressed against the outer wall of the steel strip coil 4 under the force of the tension spring 64 . A hydraulic cylinder 65 is arranged between the two pressing arms 62, and both ends of the hydraulic cylinder 65 are hinged on the two pressing arms 62 respectively. At the time, the hydraulic cylinder 65 pushes the two pressing arms 62 to open, so that the pressing arms 62 rotate around the fixed shaft 61, so that the pressing seat 63 is disengaged from the steel strip roll 4, and the next steel strip roll 4 is conveniently placed.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (8)

1. A pinch roller system of a steel strip unwinder, comprising a frame (1) and a central shaft (2), the central shaft (2) is arranged horizontally, and one end of the central shaft (2) is swivelly supported on the frame (1) The frame (1) is provided with a pressing wheel device (6), characterized in that: the pressing wheel device (6) comprises a fixed shaft (61) and two pressing arms (62), and the fixed shaft (61) is fixed on the On the frame (1), and the length direction of the fixed shaft (61) is parallel to the length direction of the central shaft (2), one end of the two pressing arms (62) is rotatably connected to the fixed shaft (61). (62) are oppositely arranged on both sides of the central axis (2), and a clamping member is arranged between the two pressing arms (62). 2. The pinch roller system of a steel strip unwinder according to claim 1, wherein the clamping member is a tension spring (64), and the two ends of the tension spring (64) are respectively fixed on two Press the middle of the arm (62). 3. The pressing wheel system of a steel strip unwinder according to claim 1, wherein a hydraulic cylinder (65) is arranged between the two pressing arms (62), and the hydraulic cylinder (65) Both ends are hinged on the two pressing arms (62) respectively, and the hydraulic cylinder (65) is single-acting. 4. The pressing wheel system of a steel strip unwinding machine according to claim 1, characterized in that: a pressing seat (63) is provided at one end of the pressing arm (62) away from the fixed shaft (61), to press The tight seat (63) includes a support (631) and a roller (632), the support (631) is mounted on the pressing arm (62), the roller (632) is swivelly supported on the support (631), and the roller (632) The centerline of is parallel to the centerline of the central axis (2). 5. The pressure roller system of a steel strip unwinder according to claim 4, wherein the support (631) is arc-shaped, and the middle part of the support (631) rotates with the pressure arm (62). In connection, the arc-shaped opening of the support (631) faces the central axis (2), there are two rollers (632), and the two rollers (632) are respectively at both ends of the support (631). 6. The pressing wheel system of a steel strip unwinder according to any one of claims 1-5, wherein the pressing arm (62) is arc-shaped, and the two pressing arms (62) are arc-shaped. The shaped openings are arranged opposite each other. 7. The pinch roller system of a steel strip unwinder according to claim 1, characterized in that: one end of the central shaft (2) away from the rotating disc (5) is provided with a support device (3), the support device (3) comprising a column (31), the column (31) is arranged vertically, the lower end of the column (31) is provided with a base (32), the base (32) is provided with a mounting hole (33), and the lower end of the column (31) abuts against In the installation hole (33), a telescopic assembly (34) is arranged on the upper end of the column (31), a support seat (35) is installed on the telescopic assembly (34), and two support wheels (36) are arranged on the support seat (35). ), the support wheel (36) is swivelly supported on the support seat (35), and the distance between the two support wheels (36) is smaller than the diameter of the central shaft (2). 8. The pinch roller system of a steel strip unwinder according to claim 7, wherein the telescopic assembly (34) comprises a stud (341) and a retaining ring (342), and the stud (341) The lower end of the stud (342) is inserted into the upper end of the column (31), the retaining ring (342) is screwed on the stud (341), and the retaining ring (342) abuts on the upper end of the column (31), and the side wall of the retaining ring (342) A force-applying rod (343) is arranged thereon.

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