CN219005481U

CN219005481U - Device for preventing steel clamping of head of medium plate

Info

Publication number: CN219005481U
Application number: CN202223578054.5U
Authority: CN
Inventors: 陈统; 王野; 胡爱新; 田广学; 王刚; 李海涛; 杨德方
Original assignee: Rizhao Baohua New Material Co Ltd
Current assignee: Rizhao Baohua New Material Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-12
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a device for preventing a medium plate from being blocked by a head with a head, which belongs to the field of steel production and comprises a tension straightening roller set, a pinch roller set, a slitting assembly, a steering roller set and a scroll; the pinch roll set comprises a carrier roller, an upper pinch roll, a lower pinch roll and a pressing device; the cutting assembly comprises an upper cutting edge, a lower cutting edge and a pinch roller mechanism; the pinch roller mechanism comprises a pinch roller, a connecting rod and a C-shaped frame; the connecting rod is connected with a screw thread at a position above the upper arm of the C-shaped frame, a clamping plate is fixedly arranged at a position above the lower arm of the C-shaped frame, and a compression spring is sleeved between the clamping plate and the upper arm of the C-shaped frame. Compared with the prior art, the novel steel plate has the characteristics of effectively preventing the steel of the medium plate with the head from being warped.

Description

Device for preventing steel clamping of head of medium plate

Technical Field

The utility model relates to steel production equipment, in particular to a device for preventing steel from being blocked by a head of a medium plate. After shearing based on thick plate high-strength steel flying shears, the belt head is easy to upwarp and easy to clamp steel, so that the device for preventing the thick plate belt head from clamping steel is designed.

Background

After acid leveling treatment, the acid washing product enters coiling equipment after being sheared by slitting and shearing at an outlet, and for medium-thickness high-strength steel (the thickness is more than or equal to 4.0mm and the yield strength is more than or equal to 500 MPa), the strip steel has high strength and unit volume weight, and the strip steel has the condition of upturned strip heads and strip tails after being sheared and sheared at the outlet of the acid washing production line. The upwarp belt head is easy to clamp on the upper cutting edge of the slitting shear in the belt threading process, so that the production line is stopped, and the cutting edge is easy to be crashed.

Disclosure of Invention

Aiming at the defects in the prior art, the technical task of the utility model is to provide a device for preventing the steel from being blocked by the head of the medium plate, and the condition of the steel from being blocked by the head of the medium plate is prevented by improving the outlet equipment of a production line.

The technical scheme for solving the technical problems is as follows: device for preventing steel from being clamped by tilting head of medium plate with head, and is characterized in that: the device comprises a tension straightening roller set, a pinch roller set, a slitting assembly, a steering roller set and a scroll; the pinch roll set comprises a carrier roller, an upper pinch roll, a lower pinch roll and a pressing device, wherein the carrier roller is positioned behind the lower pinch roll, and the pressing device is used for driving the upper pinch roll to press the lower pinch roll; the cutting assembly comprises an upper cutting edge, a lower cutting edge and a pinch roller mechanism; the pinch roller mechanism comprises a pinch roller, a connecting rod and a C-shaped frame; the C-shaped frame is arranged on the upper shear blade and is linked with the upper shear blade; the upper arm and the lower arm of the C-shaped frame are provided with a through hole, the connecting rod penetrates through the through hole, the upper end of the connecting rod is fixedly connected with the frame of the slitting assembly, and the lower end of the connecting rod is connected with the wheel shaft of the pinch roller; the connecting rod is connected with a screw thread at a position above the upper arm of the C-shaped frame, a clamping plate is fixedly arranged at a position above the lower arm of the C-shaped frame, and a compression spring is sleeved between the clamping plate and the upper arm of the C-shaped frame.

Further, the tension straightening roller set comprises a No. I compression roller, a No. I tension roller, a No. II compression roller, a No. II tension roller, a straightening roller and a hydraulic cylinder which are arranged on a roller frame; the travelling relation of the strip steel in the tension straightening roller set is that the strip steel enters the upper part of the straightening roller from the position between the No. II compression roller and the No. II tension roller through the position between the No. I compression roller and the No. I tension roller, around the No. I tension roller and the No. II tension roller; the hydraulic cylinder is used for realizing the lifting of the straightening roller.

Further, the tension straightening roller set further comprises a connecting frame, the middle section of the connecting frame is hinged with the roller frame, the front end of the connecting frame is used for jacking the straightening roller, and the rear end of the connecting frame is connected with the lower end of the telescopic rod of the hydraulic cylinder.

Further, the roller surface of the carrier roller is higher than the roller surface of the lower pinch roller.

Further, the pressing wheel is an iron core rubber lining polyurethane pressing wheel.

In the optimization scheme, an oiling machine is further arranged between the tension straightening roller set and the pinch roller set.

Further, the steering roller set and the winding shaft are two sets.

Compared with the prior art, the utility model has the following outstanding beneficial effects:

1. the utility model utilizes the compression roller and the straightening roller to realize straightening in the pressing process of the tension straightening roller set, thereby improving the head and tail plate shape of the strip steel; the utility model improves the head and tail plate shape and passes through by improving the outlet equipment of the production line.

2. A group of pinch rolls are added in front of the flying shears, and a pinch roller is arranged on a frame in front of the flying shears, so that steel is prevented from being clamped by a thick plate with a head after shearing, and the risk of damage to a shearing blade is reduced;

3. realizes the mass production of high-strength steel with the thickness of 4.0-5.0mm and the yield strength of 450-600MPa, and increases the economic benefit.

Drawings

Fig. 1 is a schematic diagram of the macro arrangement of the present utility model.

FIG. 2 is a schematic view of the structure of the tension leveler roller set of the present utility model.

Fig. 3 is a schematic view of the structure of the pinch roll unit of the present utility model.

FIG. 4 is a schematic diagram of the puck mechanism of the present utility model.

Detailed Description

The utility model is further described below with reference to the drawings and the detailed description. Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the following embodiments, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

For better description, the forward and backward directions are set by the running of the strip steel, that is, the right direction in fig. 1 is the forward direction, and the reverse is the backward direction. It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," "end," "side," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing and simplifying the description of the embodiments of the present utility model, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present utility model.

The pickling line equipment is provided with a phosphorus breaking machine, a leveling machine and a tension leveler, and the equipment has the effect of leveling and improving the plate shape of the medium-thickness plate high-strength steel. However, because the thickness and the strength of the medium plate strip steel are high, the ideal requirements on the strip steel head and the strip tail cannot be met, particularly, after the outlet of the production line cuts and shears, the cutting position is subjected to great downward shearing stress (the head of the front strip steel and the tail of the rear strip steel), and the head of the front strip and the tail of the rear strip are subjected to downward shearing force due to the fact that tension connection is lost, so that the situation that the strip head and the tail are upturned occurs.

The utility model is positioned at an outlet of an acid washing production line, and relates to a device for preventing steel from being blocked by a head of a medium plate, which is macroscopically arranged as shown in figure 1 and comprises a tension straightening roller set 1, a pinch roller set 3, a slitting assembly 4, a steering roller set 6 and a scroll 7. In this embodiment, an oiling machine 2 is further included between the tension straightening roll set 1 and the pinch roll set 3. The steering roller group 6 and the scroll 7 are two groups.

The tension straightening roller set 1 establishes tension to ensure the running of strip steel; the oiling machine 2 is used for oiling the surface of the strip steel and preventing rust; the pinch roll set 3 ensures the strip steel stability in the strip steel slitting process and prevents the strip steel from slipping; the cutting assembly 4 is used for cutting the continuous strip steel in a rolling way; the steering roller set 6 comprises a steering roller and a compression roller, and when the strip steel passes through the winding shaft, the strip steel is ensured to enter the winding shaft for winding; the reel 7 winds the strip steel 5.

The tension straightening roller set 1 is used for forming tension with the winding shaft 7 of the winding unit, and as shown in fig. 2, the tension straightening roller set 1 comprises a No. I compression roller 16, a No. I tension roller 15, a No. II compression roller 12, a No. II tension roller 14, a straightening roller 13 and a hydraulic cylinder 17 which are arranged on a roller frame.

The I compression roller 16 is pressed to the I tension roller 15 under the action of the pressing device above the I tension roller 15, and the II compression roller 12 is pressed to the II tension roller 14 under the action of the pressing device below the II tension roller 14. In this embodiment, the diameters phi 1250, 16 and 270 of the

tension rollers

15 and 14 and the

tension rollers

16 and 12 are described. The specific construction and control of the press roller and the pressing device are prior art and will not be described in detail here.

The I-size press roll 16 is positioned in front of the II-size tension roll 14. The strip steel 5 walks in the tension straightening roller set 1 in an inverse S shape, and specifically enters the upper part of the straightening roller 13 from the position between the No. II compression roller 12 and the No. II tension roller 14 through the position between the No. I compression roller 16 and the No. I tension roller 15, and around the No. I tension roller 15 and the No. II tension roller 14.

In normal production, the I-type press roll 16 and the II-type press roll 12 are in a lifting state, the outlet strip steel 5 runs for 40min/m before the slitting assembly 4 is slit, and after a pressing device of the I-type press roll 16 and the II-type press roll 12 receives a pressing signal, the pressing device presses down for about 2 seconds; the purpose of the two pressing roller pressing operation is to prevent the strip steel 5 from being fixed after the strip steel is cut by the flying shears, and prevent the strip steel from sliding backwards.

The straightening roller 13 is positioned at the front lower part of the II-type tension roller 14. The hydraulic cylinder 17 is used for lifting the straightening roller 13, the hydraulic cylinder 17 can be directly connected with two ends of the straightening roller 13, or can be realized through the leverage of the connecting frame 11 in the embodiment, specifically, the middle section of the connecting frame 11 is hinged with the roller frame, the front end is used for jacking the straightening roller 13, and the rear end is connected with the lower end of the telescopic rod of the hydraulic cylinder 17.

The pressing device of the pressing roller I16, the pressing device of the pressing roller II 12 and the hydraulic cylinder 17 are controlled by an electric program in a linkage way. Namely, when the production thickness is more than or equal to 4.0mm, an operator selects a chain use state, at the moment, when the I-type press roll 16 and the II-type press roll 12 are pressed down, the hydraulic cylinder 17 drives the straightening roll 13 to jack up 15mm upwards and synchronously act with the II-type press roll 12, at the moment, a straightening relation is formed between the straightening roll 13 and the II-type press roll 12, and the former roll of tape head and the later roll of tape tail at the cutting position of the medium plate can have a straightening effect.

As shown in fig. 3, the pinch roll set 3 includes a carrier roller 34, an upper pinch roll 32, a lower pinch roll 33 and a pressing device 31, which function to keep the strip steel stable during the shearing process of the slitting assembly 4, and also can prevent the strip steel from sliding backwards under the action of losing tension.

The carrier roller 34 is positioned behind the lower pinch roll 33, and the roller surface of the carrier roller 34 is higher than the roller surface of the lower pinch roll 33, so that the strip steel 5 obliquely enters between the upper pinch roll 32 and the lower pinch roll 33. The pressing device 31 is used for driving the upper pinch roll 32 to press the lower pinch roll 33. In this embodiment, the roller surface of the carrier roller 34 is 10mm higher than the roller surface of the lower pinch roller 33.

When the strip steel is reduced by 40m/min, the upper pinch roll 32 and the No. I press roll 16 and the No. II press roll 12 of the tension straightening roll set 1 are simultaneously pressed down before the strip steel 5 is sheared by the slitting assembly 4, and a simple bending effect is formed among the carrier roll 34, the upper pinch roll 32 and the lower pinch roll 33, so that the strip head of the strip steel is in a downward buckling trend after the shearing of the slitting assembly 4.

The slitting assembly 4 comprises an upper cutting edge 42, a lower cutting edge 43 and a pinch roller mechanism.

As shown in FIG. 4, the puck mechanism includes a puck 41, a link 45, and a C-frame 46.

The C-shaped frame 46 is mounted to the upper cutting edge 42 in conjunction therewith.

The upper arm and the lower arm of the C-shaped frame 46 have a through hole, the connecting rod 45 passes through the through hole, the upper end is fixedly connected with the frame of the slitting assembly 4, and the lower end is connected with the wheel shaft of the pinch roller 41. The connecting rod 45 is connected with a screw thread 44 in a threaded manner at a position above the upper arm of the C-shaped frame 46, a clamping plate is fixedly arranged at a position above the lower arm of the C-shaped frame 46, and a compression spring 47 is sleeved between the clamping plate and the upper arm of the C-shaped frame 46. In this embodiment, the pressing wheel 41 is a 5-inch iron core rubber-lined polyurethane pressing wheel.

In the free state (A state), the bottom of the pinch roller 41 is about 50mm lower than the lowermost end of the upper blade 42. The C-shaped frame 46 moves downwards along with the upper cutting edge 42 (B state), when the upper cutting edge 42 is positioned at the lowest position, the pinch roller 41 presses on the plane of the strip steel, due to the existence of the compression spring 47, the pinch roller 41 keeps a certain pressure (< 15 bar), when the unit production thickness is more than or equal to 4.0mm, and the strength is more than or equal to 500MPa at the highest, the bottom of the pinch roller 41 is lower than the lowest end of the upper cutting edge 42 by about 30mm, so that the head of the strip steel is effectively prevented from warping, and the strip threading is ensured to be smoothly completed at the upper cutting edge 42.

It should be noted that, in this embodiment, a technique known in the art is not described in detail.

The foregoing is merely for the purpose of describing particular embodiments of the utility model in detail and it will be apparent to those skilled in the art that various modifications can be made therein without departing from the spirit and scope of the utility model.

Claims

1. Device for preventing steel from being clamped by tilting head of medium plate with head, and is characterized in that: the device comprises a tension straightening roller set, a pinch roller set, a slitting assembly, a steering roller set and a scroll; the pinch roll set comprises a carrier roller, an upper pinch roll, a lower pinch roll and a pressing device, wherein the carrier roller is positioned behind the lower pinch roll, and the pressing device is used for driving the upper pinch roll to press the lower pinch roll; the cutting assembly comprises an upper cutting edge, a lower cutting edge and a pinch roller mechanism; the pinch roller mechanism comprises a pinch roller, a connecting rod and a C-shaped frame; the C-shaped frame is arranged on the upper shear blade and is linked with the upper shear blade; the upper arm and the lower arm of the C-shaped frame are provided with a through hole, the connecting rod penetrates through the through hole, the upper end of the connecting rod is fixedly connected with the frame of the slitting assembly, and the lower end of the connecting rod is connected with the wheel shaft of the pinch roller; the connecting rod is connected with a screw thread at a position above the upper arm of the C-shaped frame, a clamping plate is fixedly arranged at a position above the lower arm of the C-shaped frame, and a compression spring is sleeved between the clamping plate and the upper arm of the C-shaped frame.

2. The device for preventing the steel from being clamped by the head tilting of the medium plate belt head according to claim 1, wherein the device is characterized in that: the tension straightening roller set comprises a No. I compression roller, a No. I tension roller, a No. II compression roller, a No. II tension roller, a straightening roller and a hydraulic cylinder which are arranged on a roller frame; the travelling relation of the strip steel in the tension straightening roller set is that the strip steel enters the upper part of the straightening roller from the position between the No. II compression roller and the No. II tension roller through the position between the No. I compression roller and the No. I tension roller, around the No. I tension roller and the No. II tension roller; the hydraulic cylinder is used for realizing the lifting of the straightening roller.

3. The device for preventing the steel from being clamped by the head tilting of the medium plate belt head according to claim 2, wherein the device is characterized in that: the tension straightening roller set also comprises a connecting frame, the middle section of the connecting frame is hinged with the roller frame, the front end of the connecting frame is used for jacking the straightening roller, and the rear end of the connecting frame is connected with the lower end of the telescopic rod of the hydraulic cylinder.

4. The device for preventing the steel from being clamped by the head tilting of the medium plate belt head according to claim 1, wherein the device is characterized in that: the roller surface of the carrier roller is higher than the roller surface of the lower pinch roller.

5. The device for preventing the steel from being clamped by the head tilting of the medium plate belt head according to claim 1, wherein the device is characterized in that: the pressing wheel is an iron core rubber lining polyurethane pressing wheel.

6. The device for preventing the steel from being clamped by the head tilting of the medium plate belt head according to claim 1, wherein the device is characterized in that: an oiling machine is further arranged between the tension straightening roller set and the pinch roller set.

7. The device for preventing the steel from being clamped by the head tilting of the medium plate belt head according to claim 1, wherein the device is characterized in that: the steering roller group and the winding shaft are two groups.