CN210682600U - A steel strip coil unwinding device - Google Patents

Abstract

The utility model relates to a steel band book unwinding unit, including the frame and the drive of coupling there is the pivot pivoted drive arrangement, the installation cover is rolled up to the steel band of being equipped with admittedly in the pivot, it has the material axle to go back the coupling on the base, the epaxial pressure material support and the connecting seat of having set firmly of pressure material, it has the pressure feed roller of pressing in the outer cambered surface of steel band book to press the coupling on the material support, the connecting seat passes through hydraulic cylinder and is connected with the frame. The utility model discloses a pressure feed roll remains throughout compressing tightly of extrados face to the steel band book, has avoided the steel band book to unreel the in-process in the rotation loose appearing, has improved and has unreeled and levelling efficiency, has avoided the damage to the steel band.

Description

A steel strip coil unwinding device

technical field

The utility model relates to the field of unwinding equipment, in particular to a steel strip coil unwinding device.

Background technique

In steel pipe production enterprises, the raw material used is coiled steel strip, and the steel strip needs to be uncoiled during production. Since the steel strip has a certain elasticity after being wound, it is very easy to loose the steel strip during the unwinding process. This affects feeding and leveling. At present, the commonly used method is to fix the layers of steel strips in the steel strip coil by mutual spot welding, and the pulling force during unwinding will destroy the welding points to realize the unwinding and feeding. However, this method will cause damage to the steel strip itself, affect the quality of the steel pipe, and need to smooth the solder joints, resulting in high labor intensity and low production efficiency.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the utility model provides a steel strip coil unwinding device, which prevents the steel strip coil from loosening during unwinding and does not cause damage to the steel strip.

The utility model is realized by the following technical solutions, and provides a steel strip coil unwinding device, which comprises a machine base connected with a rotating shaft and a driving device for driving the rotating shaft to rotate, and a steel strip coil installation is fixed on the rotating shaft The base is also axially connected with a pressing shaft, the pressing shaft is fixed with a pressing support and a connecting seat, and the pressing support is axially connected with the outer arc surface of the steel strip coil. The nip roller, the connecting seat is connected with the machine seat through a hydraulic cylinder.

When this scheme is in use, the steel strip coil is sleeved and installed on the steel strip coil installation sleeve. When unwinding, the driving device drives the rotating shaft and the steel strip coil installation sleeve to rotate, and the steel strip coil rotates with the steel strip coil installation sleeve as a whole. The hydraulic oil cylinder pulls the connecting seat, so that the pressing roller is always pressed against the outer arc surface of the steel strip coil to prevent the steel strip coil from loosening. The hinge point of the seat and the pressing shaft are eccentrically arranged, so that the connecting seat can rotate the pressing shaft under the pushing or pulling of the hydraulic cylinder, or make the pressing shaft have a tendency to rotate.

As an optimization, two support arms distributed along the axial direction of the steel strip coil are fixedly connected to the base, and a support sleeve through which the pressing shaft is passed is fixedly connected to the support arms. In this optimization scheme, by setting the support arm, it is convenient to increase the distance between the pressing shaft and the base, so as to meet the requirements for the use of larger diameter steel coils; Improved support stability.

As an optimization, the pressing support includes two pressing plates fixed on the pressing shaft in the axial direction, and the two ends of the pressing roller are respectively connected with the two pressing plates through bearings. The pressing support of this optimization scheme adopts the structure of two vertical plates, which reduces the weight and reduces the difficulty of processing and manufacturing. By setting the bearing, the rotation resistance of the pressing roller is smaller, and the rotation of the pressing roller with the steel coil is more flexible. , thereby reducing the frictional resistance of the steel strip unwinding while ensuring that the steel strip coil is not loose.

As an optimization, the bottom edge of the pressing plate is an upwardly arched arc. In this optimization scheme, the bottom edge of the pressing plate is set to an arc shape, which increases the diameter of the applicable steel strip coil and avoids the contact between the pressing plate and the steel strip coil.

As an optimization, a drive motor for driving the rotation of the nip roller is also fixed on the nip support, and the nip roller and the steel strip roll in opposite directions. This optimization scheme drives the nip roll to rotate by driving the motor, so that the rotation of the nip roll is changed from passive to active, and the friction between the nip roll and the steel strip is further reduced while the nip roll presses the steel strip coil. force.

Preferably, the driving device is a hydraulic motor. This preferred solution uses a hydraulic motor to drive the steel strip to rotate, and the output torque is large, which can meet the requirements of larger steel strips.

As an optimization, the steel strip coil installation sleeve includes a shaft sleeve sleeved and fixed on the rotating shaft, and a plurality of support tables evenly distributed along the circumference of the shaft sleeve and fixed to the shaft sleeve. The support tables extend in the axial direction, and the support tables The outer surface away from the shaft sleeve is axially slidably connected with adjustment blocks, and the circle where the outer edge of each adjustment block is located is adapted to the inner diameter of the steel strip coil. When the steel strip coil installation sleeve of this optimization scheme is in use, the inner hole of the steel strip coil is sleeved on each adjustment block. The flat device is aligned; the end of the shaft sleeve close to the base is fixed with a baffle distributed along the circumferential direction, and the baffle is set to limit the steel strip coil to provide a limit for the installation of the steel strip coil in place, and Prevent the coil from coming out of the side where the base is located.

As an optimization, a dovetail groove extending in the axial direction is provided on the side of the adjustment block facing the support table, and a slide rail adapted to the dovetail groove is provided on the support table. This optimization scheme avoids relative sliding between the support table and the adjustment block by setting the dovetail groove, thereby avoiding the slipping phenomenon of the steel strip coil and ensuring the smooth progress of the unwinding.

The beneficial effects of the utility model are: the pressing roller keeps pressing the outer camber surface of the steel strip coil all the time, avoiding the looseness of the steel strip coil in the process of rotating and unwinding, improving the efficiency of unwinding and leveling, and avoiding the damage to the steel strip.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A sectional view in Fig. 1;

Figure 3 is a side view of the utility model;

4 is a schematic top view of the braking device;

Shown in the picture:

1. Machine base, 2. Braking device, 3. Driving device, 4. Brake disc, 5. Support arm, 6. Connecting seat, 7. Pressing shaft, 8. Supporting sleeve, 9. Pressing support, 10, Drive motor, 11, steel strip coil installation sleeve, 12, rotating shaft, 13, steel strip coil, 14, baffle plate, 15, hydraulic cylinder, 16, pressure roller, 17, support table, 18, adjustment block, 19, pad piece.

Detailed ways

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementations.

As shown in FIG. 1, a steel strip coil unwinding device includes a base 1 connected with a rotating shaft 12 and a driving device 3 for driving the rotating shaft to rotate. The rotating shaft 12 is arranged horizontally. The driving device 3 in this embodiment is connected to hydraulic pressure. hydraulic motor of the system.

The steel strip coil mounting sleeve 11 and the brake disc 4 are fixed on the rotating shaft 12, and the steel strip coil installation sleeve 11 and the brake disc 4 are respectively located on both sides of the base, and a pneumatic brake that can clamp the brake disc is also installed on the base. Device 2, the pneumatic brake device adopts the prior art, and its structure will not be repeated.

The base is also connected with a pressing shaft 7 parallel to the rotating shaft. The pressing shaft 7 is fixed with a pressing support 9 and a connecting seat 6. The pressing roller 16 on the outer arc surface of the tape roll 13, the pressing roller, the rotating shaft and the pressing shaft are parallel to each other. The connecting seat 6 is connected to the base 1 through the hydraulic cylinder 15, the cylinder body of the hydraulic oil cylinder is hinged with the base, the piston rod is hinged with the connecting seat, and the hinge point of the piston rod and the connecting seat is eccentrically arranged with the pressing shaft. In this embodiment, the hydraulic oil cylinder and the pressing roller are respectively located on both sides of the pressing shaft. When the piston rod of the hydraulic oil cylinder extends, the pressing roller presses the outer arc surface of the steel strip coil.

In order to facilitate the use of steel strip coils with larger outer diameters, in this embodiment, two support arms 5 distributed along the axial direction of the steel strip coils are fixedly connected to the base, and the support arms 5 are fixedly connected with the pressing material passing through them. Shaft support sleeve 8.

The pressing support 9 in this embodiment includes two pressing plates fixed on the pressing shaft in the axial direction and a seat plate which is fixedly connected to the two pressing plates. The bottom edge of the pressing plates is upwardly arched. The two ends of the pressing roller 16 are respectively connected with the two pressing plates through bearings. The base plate is fixed with a drive motor 10 that drives the press roller to rotate. The drive motor and the press roller are driven by a chain. When unwinding, the press roller 16 and the steel strip coil 13 turn oppositely. Take Fig. 3 as an example , if the steel coil rotates counterclockwise during unwinding, then the nip roll rotates clockwise.

The steel strip coil installation sleeve includes a shaft sleeve sleeved and fixed on the rotating shaft 12 and a plurality of support tables 17 evenly distributed along the circumference of the shaft sleeve and fixed with the shaft sleeve. The support tables 17 extend in the axial direction, and the support tables Adjustment blocks 18 are slidably connected to the outer surface of the shaft sleeve along the axial direction, and the circle where the outer edge of each adjustment block is located is adapted to the inner diameter of the steel strip coil.

In order to avoid relative sliding between the adjustment block and the support table in the circumferential direction, in this embodiment, a dovetail groove extending in the axial direction is provided on the side of the adjustment block facing the support table, and the support table is provided with a sliding groove adapted to the dovetail groove. rail. When installing a steel strip coil with a larger inner diameter, a spacer block 19 can be fixed on the outer surface of the adjustment block, and the spacer block 19 can be used to support the inner hole of the steel strip coil.

A baffle plate 14 distributed in the circumferential direction is fixed on the end of the shaft sleeve close to the base, and the baffle plate is arranged to limit the steel strip coil, provide a limit for the installation of the steel strip coil in place, and prevent the steel strip The roll comes off the side where the base is located.

In actual production, the steel strip coil is set on the steel strip coil installation sleeve, and the piston rod of the hydraulic cylinder extends to drive the pressing shaft to rotate, so that the pressing roller presses the outer arc surface of the steel strip coil. The piston rod of the hydraulic cylinder always has a protruding pressure to ensure that when the outer diameter of the steel coil is reduced, the nip roller always presses the steel coil. During the unwinding process, the driving motor drives the pressure roller to rotate in the opposite direction to the steel strip coil, which reduces the unwinding resistance of the steel strip coil. The unwinding speed can be easily adjusted by adjusting the speed of the hydraulic motor and the driving motor Control to meet the use requirements of different working conditions. When it needs to stop, start the pneumatic brake device, hold the brake disc tightly, and stop the steel coil from rotating, which is very convenient to operate.

The unwinding device of the utility model can also be used for conveying and rewinding the steel strip. The rotation direction of the rotating shaft during rewinding is opposite to that during unwinding, and the pressing roller is also pressed against the outer arc surface of the steel strip coil, so that the formed steel The belt coil is tight, and through the pressing action of the pressing roller, the steel belt can be prevented from bouncing off due to elasticity, which improves the safety of the operation.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be realized by or using the existing technology, and will not be repeated here; the above embodiments and accompanying drawings are only used to illustrate the technology of the present invention. The solution is not intended to limit the present utility model. The present utility model is described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the Changes, modifications, additions or substitutions do not depart from the purpose of the present invention, and should also belong to the protection scope of the claims of the present invention.

Claims (8)

1. A steel strip coil unwinding device, characterized in that it comprises a base (1) connected with a rotating shaft (12) and a driving device (3) that drives the rotating shaft to rotate, and the rotating shaft (12) is fixed on the A steel strip coil installation sleeve (11) is installed, the machine base is also connected with a pressing shaft (7), and the pressing shaft (7) is fixed with a pressing support (9) and a connecting seat ( 6), the pressing support (9) is axially connected with a pressing roller (16) pressing on the outer arc surface of the steel strip coil (13), and the connecting seat (6) is connected to the machine through the hydraulic cylinder (15). Block (1) connection. 2. A steel strip coil unwinding device according to claim 1, characterized in that: two support arms (5) distributed along the axial direction of the steel strip coil are fixedly connected to the machine base, and the support arms (5) ) is fixedly connected with a support sleeve (8) through which the pressing shaft is passed. 3. A steel strip coil unwinding device according to claim 1, characterized in that: the pressing support (9) comprises two pressing plates axially fixed on the pressing shaft, the Both ends of the pressing roller (16) are respectively connected with the two pressing plates through bearings. 4 . The steel strip coil unwinding device according to claim 3 , wherein the bottom edge of the pressing plate is an arc shape that is arched upward. 5 . 5. A steel strip coil unwinding device according to claim 1, characterized in that: a driving motor (10) for driving the rotation of the pressing roller is also fixed on the pressing support, and the pressing roller is (16) turns in the opposite direction to the coil (13). 6 . The steel strip coil unwinding device according to claim 1 , wherein the driving device ( 3 ) is a hydraulic motor. 7 . 7 . The steel strip coil unwinding device according to claim 1 , wherein the steel strip coil installation sleeve comprises a shaft sleeve sleeved and fixed on the rotating shaft ( 12 ) and distributed along the circumference of the shaft sleeve. 8 . Several support platforms (17) are fixedly connected with the shaft sleeve, the support platforms (17) extend in the axial direction, and adjustment blocks (18) are slidably connected in the axial direction on the outer surface of the support platform away from the shaft sleeve. The circle where the edge is located is adapted to the inner diameter of the coil. 8 . The steel strip coil unwinding device according to claim 7 , wherein a dovetail groove extending in the axial direction is provided on the side of the adjustment block facing the support table, and the support table is provided with a dovetail groove extending in the axial direction. Sliding rails for dovetail grooves.

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