CN119870574A - Hot rolled steel plate cutting device - Google Patents

Abstract

The invention relates to the technical field of steel plate cutting, and particularly discloses a hot rolled steel plate cutting device which comprises a machine base, a front positioning module, a rear positioning module, a transverse cutter and a longitudinal cutter, wherein a bearing plate is vertically and horizontally slid on the inner side of the machine base, a movable frame is horizontally and horizontally slid on the machine base, a left positioning module, a right positioning module, a centering module and a pushing module are further arranged on the machine base, the left positioning module and the right positioning module comprise hydraulic oil tanks arranged on the movable frame, and a plurality of hydraulic rods communicated with the hydraulic oil tanks are horizontally arranged on opposite surfaces of the left side and the right side of the movable frame at intervals. The clamping rod has the beneficial effects that the clamping rod clamps the hot-rolled steel plate in the left-right direction, the clamping rod can be abutted against the end surface of the hot-rolled steel plate through the extension of the hydraulic rod for different lengths no matter what the end surface of the hot-rolled steel plate is, the positioning of the hot-rolled steel plate in the left-right direction is completed, the pushing surface of the pushing table is tightly attached to the rear side surface of the hot-rolled steel plate, and the clamping of the clamping plate is matched, so that the deviation during transverse cutting and longitudinal cutting is avoided.

Description

Hot rolled steel plate cutting device

Technical Field

The invention relates to the technical field of steel plate cutting, in particular to a hot rolled steel plate cutting device.

Background

Hot rolled steel sheet is a product obtained by subjecting a steel slab to a series of rolling, cooling, etc. steps at high temperature to form a thin sheet or thick sheet. The hot rolled steel plate is mainly made of carbon steel, including low carbon steel, medium carbon steel and the like. Low carbon steel has good plasticity, toughness and welding performance, and is commonly used for steel beams and steel columns in building structures, some car body parts in car manufacturing and the like. The medium carbon steel has higher strength and is suitable for occasions needing to bear larger load.

The Chinese patent with the publication number of CN113649648B discloses a hot-rolled steel plate cutting device, which belongs to the technical field of hot-rolled steel plate processing equipment and comprises a conveying roller frame, wherein a hot-rolled steel plate is arranged on the conveying roller frame, a plurality of limiting mechanisms are arranged on two sides of the conveying roller frame, a cutting mechanism is arranged on the conveying roller frame, a waste treatment mechanism is arranged on one side, far away from the cutting mechanism, of the conveying roller frame, and comprises a fixing frame, and a material guiding component and a crushing component are arranged on the fixing frame. The hot-rolled steel plate conveying device has the beneficial effects that the structure is simple, the use is convenient, the hot-rolled steel plate is supported by the rollers arranged on the conveying roller frame, the hot-rolled steel plate is kept to be positioned in the middle of the conveying roller frame by the limiting mechanisms on the two sides of the conveying roller frame, the two sides of the hot-rolled steel plate are cut by the cutting mechanism, the waste edges are guided to the crushing assembly by the material guiding assembly of the waste material treatment mechanism, the long waste edges are crushed into small waste edges by the crushing assembly, and the small waste edges are convenient to collect and process.

The head and the tail of the steel plate are always tongue-shaped and fish-tail-shaped, and the two ends of the steel plate are uneven, so that the two ends cannot be well clamped and fixed, the hot rolled steel plate is easy to deviate due to the fact that the cutting tool is fast rotated, and the size precision after cutting is low.

Disclosure of Invention

The invention provides a hot rolled steel plate cutting device, which aims to solve the technical problems that in the prior art, the heads and the tails of steel plates are always tongue-shaped and fish-tail-shaped, and the two ends of the steel plates are uneven, so that the two ends cannot be well clamped and fixed, and the hot rolled steel plates are easily offset in the rapid rotation process of a cutting tool, so that the dimensional accuracy after cutting is low.

The hot rolled steel plate cutting device comprises a machine base, front and rear positioning modules, transverse cutters and longitudinal cutters, wherein a bearing plate vertically slides on the inner side of the machine base, a moving frame horizontally slides on the machine base, a left positioning module, a right positioning module, a centering module and a pushing module are further arranged on the machine base, the left positioning module and the right positioning module comprise hydraulic oil tanks arranged on the moving frame, a plurality of hydraulic rods communicated with the hydraulic oil tanks are horizontally arranged on opposite surfaces of the left side and the right side of the moving frame at intervals, vertically arranged clamping rods are fixedly arranged on telescopic parts of the hydraulic rods, a pump body is arranged on the hydraulic oil tanks, the centering module comprises sliding frames which are horizontally symmetrical left and right, a connecting plate which is arranged between the two sliding frames and is elastically connected with the two sliding frames at the same time, a positioning rod which is vertically slid on the connecting plate and the axis of which is horizontally arranged in the front and rear direction, two positioning grooves which are arranged on the machine base are arranged on the left and right of the positioning rod, the pushing module comprises a pushing table horizontally sliding on the right side of the machine base, vertically sliding clamping plates which are vertically slid on the right side of the machine base, and a material penetrating hole is arranged at the position of the front side of the machine base, which is corresponding to the longitudinal position of the pushing table.

The positioning plate has the beneficial effects that the positioning plate finishes the positioning of the hot-rolled steel plate in the front-back direction, the hydraulic rods on the left side and the right side extend, the hydraulic rods drive the clamping rods to move inwards at the same time, and the clamping rods on the two sides are respectively abutted on the left end face and the right end face of the hot-rolled steel plate, so that the hot-rolled steel plate is clamped inside. The clamping rods are abutted to different positions of the end face of the hot-rolled steel plate, no matter what the shape of the end face of the hot-rolled steel plate is, the clamping rods can be abutted to the end face of the hot-rolled steel plate through the length of the hydraulic rods, and the clamping rods are matched to clamp and position the hot-rolled steel plate in the left direction and the right direction. As the hot rolled steel plate is positioned in the front-back and left-right directions, the offset can not occur when the hot rolled steel plate is cut by the transverse cutter, and the cutting precision is ensured. When the hot rolled steel plate moves to the right side of the stand, the locating rod falls into the locating groove when passing through the locating groove, so that the locating of the middle position of the hot rolled steel plate after transverse cutting is completed. The pushing cylinder pushes the pushing table forward, so that the pushing surface of the pushing table is clung to the rear side surface of the hot rolled steel plate, at the moment, the front side surface and the rear side surface of the hot rolled steel plate are completely horizontal after being cut, the pushing surface can be completely clung to the rear side surface of the hot rolled steel plate, the positioning effect on the hot rolled steel plate is guaranteed, and then the clamping cylinder drives the clamping plate to descend to clamp the hot rolled steel plate. The rear side of the hot rolled steel plate is tightly attached to the pushing surface of the pushing table, and the vertical direction is tightly pressed by the clamping plate, so that the positioning and clamping effects on the hot rolled steel plate are ensured, and the offset during longitudinal cutting is avoided. The accuracy of the hot rolled steel plate in transverse and longitudinal cutting is effectively guaranteed.

Preferably, two groups of lifting cylinders are arranged in front of and behind the inner side of the machine base, the telescopic part of each group of lifting cylinders is fixedly provided with a bearing plate which is horizontally arranged, the two bearing plates are arranged at intervals in front of and behind, and a channel which is vertically communicated is arranged between the two bearing plates.

Preferably, the first lead screw is rotatably arranged on the inner side of the machine base, the axis of the first lead screw is horizontally arranged along the left-right direction, the position of the first lead screw corresponds to a channel between the two bearing plates up and down, the first lead screw is connected with a moving block in a threaded manner, the moving block is in sliding fit with the front bearing plate and the rear bearing plate, and the moving block is fixedly connected with the moving frame.

The hot-rolled steel plate conveying device has the advantages that the movable frame can be driven to move left and right so as to convey the hot-rolled steel plate.

Preferably, the second lead screw is rotatably arranged on the left side and the right side of the movable frame, the axis of the second lead screw is horizontally arranged along the front-back direction, two adjusting blocks which are horizontally matched with the movable frame in a sliding mode are arranged on the second lead screw, and the foremost side and the rearmost side of the hydraulic rods on each side are respectively fixed on the corresponding adjusting blocks.

The hydraulic rod adjusting device has the advantages that when the adjusting block moves, the hydraulic rod can be driven to move, hot rolled steel plates with different widths can be adapted by controlling the position of the hydraulic rod at the outermost side, and the applicability of the device is improved.

Preferably, the telescopic rods are fixedly arranged on the left side surface and the right side surface of the movable frame, each telescopic rod consists of two outer rods and two inner rods which are in sliding fit with each other, and one end, far away from the movable frame, of each telescopic rod is fixedly connected with the sliding frame.

Preferably, the sliding frame is of a T-shaped structure, and the sliding frame is connected with the fixing seat in a sliding manner through a spring.

Preferably, the left side and the right side of the positioning groove are in transition with the upper surface of the machine base through inclined planes or cambered surfaces so that the positioning rod is separated from the positioning groove.

The movable rack has the advantages that when the movable rack returns to the left after cutting is finished, the positioning rod is convenient to separate from the positioning groove, and reset is finished.

Preferably, a pushing cylinder is arranged at the rear side of the machine base, the pushing table is fixedly arranged at the telescopic part of the pushing cylinder, the pushing table is of an L-shaped structure, the bottom of the pushing table is provided with a clamping cylinder, the telescopic part of the clamping cylinder extends to the upper part of the pushing table, and the clamping plate is fixedly arranged at the telescopic part of the clamping cylinder.

The hot-rolled steel plate positioning device has the advantages that the pushing cylinder pushes the pushing table forwards, so that the pushing surface of the pushing table is clung to the rear side surface of the hot-rolled steel plate, the front side surface and the rear side surface of the hot-rolled steel plate are completely horizontal after being cut, the pushing surface can be completely clung to the rear side surface of the hot-rolled steel plate, and the positioning effect on the hot-rolled steel plate is guaranteed.

Preferably, the transverse cutters are provided with two groups and are respectively positioned at the front side and the rear side of the machine base, and the transverse cutters are positioned on a path of movement of the workpiece to the right side.

Preferably, the cutting table is installed to the frame front side, and the cutting table corresponds with the punching hole position, and vertical cutter is installed in the cutting table, and vertical cutter left and right sides interval is provided with two.

By adopting the technical scheme, the invention has the beneficial effects that:

1. The locating plate is used for locating the front and back directions of the hot-rolled steel plate, hydraulic rods on the left side and the right side extend, the hydraulic rods drive the clamping rods to move inwards simultaneously, and the clamping rods on the two sides are respectively abutted to the left end face and the right end face of the hot-rolled steel plate, so that the hot-rolled steel plate is clamped inside. The clamping rods are abutted to different positions of the end face of the hot-rolled steel plate, no matter what the shape of the end face of the hot-rolled steel plate is, the clamping rods can be abutted to the end face of the hot-rolled steel plate through the length of the hydraulic rods, and the clamping rods are matched to clamp and position the hot-rolled steel plate in the left direction and the right direction. As the hot rolled steel plate is positioned in the front-back and left-right directions, the offset can not occur when the hot rolled steel plate is cut by the transverse cutter, and the cutting precision is ensured. The pushing cylinder pushes the pushing table forward, so that the pushing surface of the pushing table is clung to the rear side surface of the hot rolled steel plate, at the moment, the front side surface and the rear side surface of the hot rolled steel plate are completely horizontal after being cut, the pushing surface can be completely clung to the rear side surface of the hot rolled steel plate, the positioning effect on the hot rolled steel plate is guaranteed, and then the clamping cylinder drives the clamping plate to descend to clamp the hot rolled steel plate. The rear side of the hot rolled steel plate is tightly attached to the pushing surface of the pushing table, and the vertical direction is tightly pressed by the clamping plate, so that the positioning and clamping effects on the hot rolled steel plate are ensured, and the offset during longitudinal cutting is avoided. The accuracy of the hot rolled steel plate in transverse and longitudinal cutting is effectively guaranteed.

2. When the hot rolled steel plate moves to the right side of the stand, the locating rod falls into the locating groove when passing through the locating groove, so that the locating of the middle position of the hot rolled steel plate after transverse cutting can be completed, and the hot rolled steel plate can be accurately cut longitudinally.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a top view of the housing of the present invention.

Fig. 3 is an exploded view of the base and the movable frame of the present invention.

Fig. 4 is a schematic structural view of the mobile frame of the present invention.

Fig. 5 is an exploded view of the movable frame and the fixed frame of the present invention.

Fig. 6 is a schematic structural view of a hydraulic rod according to the present invention.

Fig. 7 is a schematic view of the pushing table of the present invention.

Fig. 8 is a schematic view showing a state in which the clamping rod of the present invention clamps a hot rolled steel sheet.

Fig. 9 is a schematic view showing a state in which the hot rolled steel sheet according to the invention is transported to the right.

Reference numerals:

10. The device comprises a machine seat, 11, a lifting cylinder, 12, a bearing plate, 13, a material supporting table, 14, a hot rolled steel plate, 15, a cutting through hole, 20, a driving motor, 21, a first screw rod, 22, a moving block, 23, a moving frame, 30, a positioning cylinder, 31, a positioning plate, 40, a hydraulic oil tank, 41, a hydraulic rod, 42, a clamping rod, 43, a second screw rod, 44, an adjusting block, 50, a transverse cutter, 60, a positioning rod, 61, a connecting plate, 62, a fixed seat, 63, a sliding frame, 64, a telescopic rod, 65, a positioning groove, 70, a pushing cylinder, 71, a pushing table, 72, a clamping cylinder, 73, a clamping plate, 74, a material penetrating hole, 80, a cutting table and 81, and a longitudinal cutter.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

As shown in fig. 1 to 9, a specific embodiment of a hot rolled steel plate cutting device of the present invention includes a carrying module, a feeding module, a front-rear positioning module, a left-right positioning module, a transverse cutting module, a centering module, a pushing module and a longitudinal cutting module.

As shown in fig. 1,2 and 3, the carrying module includes a frame 10, and the frame 10 has a rectangular structure, in this embodiment, a length direction of the frame 10 is defined as a left-right direction, and a width direction of the frame 10 is defined as a front-back direction.

Two groups of lifting cylinders 11 are arranged in front of and behind the inner side of the machine base 10, the two groups of lifting cylinders 11 are fixedly arranged on the machine base 10, and each group is at least provided with two lifting cylinders. The telescopic part of each group of lifting cylinders 11 is fixedly provided with a bearing plate 12, the bearing plates 12 are horizontally arranged, the bearing plates 12 are used for placing hot-rolled steel plates 14, and in the embodiment, the left and right ends of the hot-rolled steel plates 14 are tongue-shaped and fish-tail-shaped. The lifting cylinder 11 can drive the bearing plate 12 to lift, so as to drive the hot rolled steel plate 14 to lift.

The two bearing plates 12 are arranged at intervals in front and back, and a channel which penetrates up and down is arranged between the two bearing plates. The channel is used for ensuring that the feeding module moves back and forth left and right so as to convey the hot rolled steel plate 14.

The left end of loading board 12 all with the left side inside wall butt of frame 10, have certain distance between the right-hand member of loading board 12 and the right side wall of frame 10, two support material platform 13 of fixed mounting on the right side inner wall of frame 10, two support material platform 13 and loading board 12 the same interval level in front and back arrange, and under the initial condition, support material platform 13 and loading board 12 upper surface flush. When the hot rolled steel sheet 14 is moved to the right, the pallet 13 can perform a load bearing function on the hot rolled steel sheet 14.

A certain distance is reserved between the material supporting table 13 and the bearing plate 12, so that the pushing module is ensured to push the hot rolled steel plate 14.

A rectangular through cutting hole 15 is formed in the side, which is abutted against the front and rear side walls of the stand 10, of the bearing plate 12, and the through cutting hole 15 is used for ensuring cutting of the front and rear sides of the hot rolled steel plate 14 and falling of cut scraps.

As shown in fig. 2,3 and 4, the feeding module includes a driving motor 20, a first screw 21, a moving block 22 and a moving frame 23.

The first screw rod 21 is rotatably mounted on the inner side of the machine base 10, the axis of the first screw rod 21 is horizontally arranged along the left-right direction, the position of the first screw rod 21 corresponds to the channel between the two bearing plates 12 up and down, and a driving motor 20 for driving the first screw rod 21 to rotate is mounted on the side surface of the machine base 10.

The first lead screw 21 is in threaded connection with a moving block 22, the moving block 22 is positioned in a channel between the two bearing plates 12, and the front side wall and the rear side wall of the moving block 22 are respectively in sliding fit with the front bearing plate 12 and the rear bearing plate 12, so that the moving block 22 can be driven to reciprocate left and right when the first lead screw 21 rotates.

The movable block 22 is fixedly provided with a movable frame 23, and in this embodiment, the movable frame 23 has a U-shaped structure, and two opposite side panels on the movable frame 23 are distributed in the left-right direction. In particular, since the movable block 22 is located at the bottom of the right side plate of the movable frame 23, the bottom of the left side plate of the movable frame 23 is suspended, so that interference with the hot-rolled steel plate 14 placed on the left side carrier plate 12 when the movable frame 23 is returned from the right side is avoided, and the hot-rolled steel plate 14 is required to be located inside the movable frame 23 when the hot-rolled steel plate 14 is clamped and positioned.

The left and right positioning modules are arranged on the moving frame 23, after the front and rear positioning modules and the left and right positioning modules clamp and position the hot rolled steel plate 14, the first screw rod 21 rotates to drive the moving block 22 and the moving frame 23 to slide to the right side, the moving frame 23 drives the hot rolled steel plate 14 to move to the right side, the hot rolled steel plate 14 passes through the transverse cutting module in the moving process, and the transverse cutting module completes cutting of the front side and the rear side of the hot rolled steel plate 14.

As shown in fig. 2, the front-rear positioning module includes a positioning cylinder 30 and a positioning plate 31. A plurality of positioning air cylinders 30 are arranged on the front side and the rear side of the stand 10 at left and right intervals, positioning plates 31 are fixedly arranged on telescopic parts of the positioning air cylinders 30, the positioning plates 31 are of square plate-shaped structures, and the positioning plates 31 are positioned in cutting through holes 15 between the bearing plates 12 and the front side wall and the rear side wall of the stand 10. When the positioning cylinder 30 drives the positioning plate 31 to move inward, the positioning of the hot rolled steel sheet 14 in the front-rear direction can be completed.

The front and rear positioning modules are positioned at the left side of the stand 10, and the hot rolled steel plate 14 is placed on the left side of the bearing plate 12, so that the positioning of the front and rear sides of the hot rolled steel plate 14 by the positioning plates 31 is ensured.

As shown in fig. 5 and 6, the left and right positioning module includes a hydraulic oil tank 40, a hydraulic rod 41, and a clamp rod 42.

The hydraulic oil tank 40 is fixedly installed at the top of the two opposite left and right panels of the movable frame 23, and hydraulic oil is loaded in the hydraulic oil tank 40. A plurality of hydraulic rods 41 are fixedly arranged on the left and right opposite surfaces of the movable frame 23 at intervals, and the hydraulic rods 41 on the left and right sides are symmetrically arranged. The axes of the hydraulic rods 41 are horizontally arranged in the left-right direction, and the front and rear hydraulic rods 41 are parallel to each other. The end of the hydraulic rod 41 facing the inner side is a telescopic end, the telescopic ends are fixedly provided with clamping rods 42, the clamping rods 42 are of rod-shaped structures and are vertically arranged, and the lower ends of the clamping rods 42 are abutted against the upper surface of the bearing plate 12.

The hydraulic rods 41 on each side are mutually communicated through oil delivery pipes, the hydraulic rods 41 on each side are communicated with the hydraulic oil tank 40 on the side, a hydraulic pump (not shown in the figure) is mounted on the hydraulic oil tank 40, and the hydraulic pump can pump hydraulic oil in the hydraulic oil tank 40 to all the hydraulic rods 41, so that the expansion and contraction of the hydraulic rods 41 are controlled. The hydraulic rod 41 stretches and contracts to drive the clamping rod 42 to move, so that the inner hot rolled steel plate 14 is clamped and positioned.

When the hot rolled steel sheet 14 is positioned on the carrier plate 12 and is positioned at the inner side of the movable frame 23, the positioning cylinder 30 drives the positioning plate 31 to move inwards to finish positioning the hot rolled steel sheet 14 in the front-rear direction. Then, the hydraulic pumps on the hydraulic oil tanks 40 on the left and right sides simultaneously operate, and simultaneously drive the hydraulic rods 41 on the two sides to extend, and the hydraulic rods 41 drive the clamping rods 42 to simultaneously move inwards. The clamping bars 42 on both sides are respectively abutted against the left and right end surfaces of the hot-rolled steel sheet 14, thereby clamping the hot-rolled steel sheet 14 inside. Since the left and right end surfaces of the hot rolled steel sheet 14 are uneven and have a tongue shape and a fish tail shape, the expansion and contraction lengths of the hydraulic rods 41 are different from each other, and when the clamping rods 42 are abutted against the end surfaces of the hot rolled steel sheet 14 and clamped, the hydraulic rods 41 are not elongated any more. The plurality of holding rods 42 are abutted back and forth on different positions of the end face of the hot rolled steel sheet 14, and the end face of the hot rolled steel sheet 14 is uneven, so that the holding rods 42 are not on the same plane in the back and forth direction (see fig. 8). Regardless of the shape of the end face of the hot-rolled steel sheet 14, the hydraulic rod 41 is extended by different lengths, so that the clamping rod 42 can be abutted against the end face of the hot-rolled steel sheet 14, and the clamping and positioning of the hot-rolled steel sheet 14 in both the left and right directions can be completed by the engagement of the plurality of clamping rods 42.

As shown in fig. 6, the left and right positioning modules further have two sets of adjusting units, and two sets of panels opposite to each other are mounted on the left and right moving frame 23. Each set of adjustment units comprises a second screw 43 and an adjustment block 44.

The second screw 43 is rotatably installed at a side of the moving frame 23, and an axis of the second screw 43 is horizontally arranged in a front-rear direction, a motor driving the second screw 43 to rotate is installed at an end of the second screw 43, and the second screw 43 is a front-back screw. The front end and the rear end of the second screw 43 are respectively provided with an adjusting block 44, and the adjusting blocks 44 are horizontally matched with the movable frame 23 in a sliding way. When the second screw 43 rotates, the adjustment block 44 can be driven to approach or separate simultaneously.

One of the foremost and rearmost sides of the hydraulic rods 41 on each side is fixedly mounted on a corresponding adjustment block 44 (see fig. 6), respectively, so that the hydraulic rods 41 can be driven to move when the adjustment block 44 moves. By controlling the position of the outermost hydraulic rod 41, it is possible to adapt to hot rolled steel sheets 14 having different widths (lengths in the front-rear direction), and to improve the applicability of the apparatus.

As shown in fig. 2, the transverse cutting module is a transverse cutter 50 mounted on the machine base 10, and the transverse cutter 50 is provided with two groups and is respectively located at the front side and the rear side of the machine base 10. The transverse cutters 50 are all located in the cutting through holes 15 between the bearing plate 12 and the stand 10, and are on the path of the hot rolled steel sheet 14 moving to the right. When the positioning of the hot rolled steel sheet 14 in the front-rear direction and the left-right direction is completed to the right side, the front-rear sides of the hot rolled steel sheet 14 pass through the front-rear two lateral cutters 50, thereby completing the cutting of the front-rear sides of the hot rolled steel sheet 14. Since the hot rolled steel sheet 14 is positioned in the front-rear and left-right directions, the offset does not occur when cutting by the transverse cutter 50, and the accuracy of cutting is ensured.

The transverse cutter 50 can be adjusted in the front-rear direction, so that the cutting width is adjusted, the adjustment of the transverse cutter 50 can be realized by the driving of the air cylinder, and the technology belongs to the prior art and is not described herein.

The feeding module drives the hot-rolled steel plate 14 to move to the right side of the machine base 10, the supporting platform 13 plays a bearing role on the hot-rolled steel plate 14 to enable the hot-rolled steel plate 14 to be sent to the pushing module, then the left and right positioning modules release the positioning of the hot-rolled steel plate 14, and after the pushing module clamps the hot-rolled steel plate 14 again, the hot-rolled steel plate 14 is pushed to the front side, so that the hot-rolled steel plate 14 passes through the longitudinal cutting module to cut the left side and the right side of the hot-rolled steel plate 14.

In order to make the center point of the hot rolled steel sheet 14 at the cutting center of the longitudinal cutting module when the hot rolled steel sheet 14 is cut on both sides, thereby cutting the both sides of the hot rolled steel sheet 14 more precisely, a centering module is provided, which will be described in detail below.

As shown in fig. 4 and 5, the centering module includes a telescopic rod 64, a sliding frame 63, a fixing base 62, a positioning rod 60, and a positioning groove 65.

The telescopic rods 64 are fixedly installed on the left side and the right side of the movable frame 23, the telescopic rods 64 are composed of two outer rods and two inner rods which are in sliding fit with each other, two telescopic rods 64 are arranged on the front side and the back side of each side, one end, far away from the movable frame 23, of each telescopic rod 64 is fixedly installed with a sliding frame 63, the sliding frame 63 is of a T-shaped structure, and the sliding frames 63 on the two sides are symmetrically arranged.

A fixed seat 62 is arranged between the sliding frames 63 at the two sides, and two ends of the fixed seat 62 are respectively connected with the sliding frames 63 at the two sides through springs in a sliding manner. The fixing base 62 is slidably fitted with a connecting plate 61 vertically at the center thereof, and a positioning rod 60 is fixedly connected to the upper end of the connecting plate 61, and the axis of the positioning rod 60 is horizontally arranged in the front-rear direction. The positioning rod 60 is positioned on the upper surface of the stand 10.

In the initial state, the clamping rods 42 on both sides are abutted against the sliding frames 63 on the side, and when the clamping rods 42 on both sides clamp the hot rolled steel plate 14, the clamping rods 42 on both sides simultaneously move inwards, so that the sliding frames 63 on both sides are pushed to slide towards the middle. Since the sliding frames 63 on both sides are slidably connected with the fixed seat 62 through springs, the springs on both sides of the fixed seat 62 are subjected to the same force no matter which side of the sliding frame 63 moves. That is, the distance that the two side carriages 63 slide on the fixed seat 62 is the same regardless of how the two side carriages 63 move, so the positioning rod 60 is always located at the center position of the two side carriages 63.

Since the end surfaces of the hot rolled steel sheet 14 are uneven, the holding rods 42 on each side are moved by different distances, and only the holding rod 42 having the longest moving distance pushes the carriage 63 to the limit position. The clamping rod 42 having the longest moving distance is located at the lowest point of the end recess of the hot rolled steel sheet 14. The positioning rod 60 is always located at an intermediate position between the front and rear extension lines of the lowest points of the depressions on both sides of the hot rolled steel sheet 14.

The lowest point of the end recess of the hot rolled steel sheet 14 is the optimal position for cutting the left and right ends of the hot rolled steel sheet 14, so the positioning rod 60 is always positioned in the middle of the optimal cutting positions on both sides of the hot rolled steel sheet 14.

The upper surfaces of the front side wall and the rear side wall of the stand 10 are correspondingly provided with positioning grooves 65, and the positioning grooves 65 are positioned in the middle of the pushing module and the longitudinal cutting module. The left and right sides of the positioning groove 65 are in transition with the upper surface of the stand 10 through inclined planes or cambered surfaces so as to facilitate the positioning rod 60 to be separated from the positioning groove 65.

When the feeding module drives the hot rolled steel plate 14 to move to the right side of the stand 10, the positioning rod 60 passes through the positioning groove 65, and the positioning rod 60 falls into the positioning groove 65, so that the positioning of the middle position of the hot rolled steel plate 14 after transverse cutting is completed.

It is emphasized that when the feeding module drives the hot rolled steel sheet 14 to move to the right side of the stand 10, a new hot rolled steel sheet 14 to be processed is placed on the carrier plate 12 again to complete the feeding operation, which is the feeding mode of the device. The feeding operation can be performed only when the feeding module moves to the right side. When the feeding module returns, the lifting cylinder 11 drives the bearing plate 12 to descend, so that the hot rolled steel plate 14 descends by a certain height, the left clamping rod 42 is ensured to pass through the hot rolled steel plate 14, and the lower end of the clamping rod 42 is abutted with the upper surface of the bearing plate 12, so that the hot rolled steel plate 14 descends, and interference to the movement of the clamping rod 42 is avoided. Until the hot rolled steel sheet 14 is positioned inside the moving frame 23.

As shown in fig. 1 and fig. 7, the pushing module includes a pushing cylinder 70 mounted at the rear side of the machine base 10, and a pushing table 71 is fixedly mounted at a telescopic portion of the pushing cylinder 70, in this embodiment, the pushing table 71 has an L-shaped structure, and a vertical surface thereof is a pushing surface. The horizontal plane is a clamping surface. The clamping cylinder 72 is installed at the bottom of the pushing table 71, the telescopic part of the clamping cylinder 72 extends to the position above the clamping surface of the pushing table 71, and the clamping plate 73 is fixedly installed on the telescopic part of the clamping cylinder 72.

The pushing table 71 is located between the supporting table 13 and the bearing plate 12, when the hot rolled steel plate 14 moves to the right, the clamping plate 73 is in an open state, when the hot rolled steel plate 14 reaches the right, the hot rolled steel plate is just located between the pushing table 71 and the clamping plate 73, then the pushing cylinder 70 pushes the pushing table 71 forward, so that the pushing surface of the pushing table 71 is tightly attached to the rear side surface of the hot rolled steel plate 14, at the moment, the front side surface and the rear side surface of the hot rolled steel plate 14 are completely horizontal surfaces after being cut, the pushing surface can be completely attached to the rear side surface of the hot rolled steel plate 14, the positioning effect on the hot rolled steel plate 14 is guaranteed, and then the clamping cylinder 72 drives the clamping plate 73 to descend so as to clamp the hot rolled steel plate 14. The rear side of the hot rolled steel plate 14 is tightly attached to the pushing surface of the pushing table 71, and is pressed by the clamping plate 73 in the vertical direction, so that the positioning and clamping effects on the hot rolled steel plate 14 are ensured, and the offset during longitudinal cutting is avoided. The left and right positioning modules then release the positioning of the hot rolled steel sheet 14.

The front side of the stand 10 is provided with a material penetrating hole 74, and the pushing cylinder 70 pushes the hot rolled steel plate 14 to the front side, so that the hot rolled steel plate 14 enters the longitudinal cutting module through the material penetrating hole 74.

As shown in fig. 1, the longitudinal cutting module includes a cutting table 80 mounted on the front side of the housing 10, the cutting table 80 corresponding to the position of the feed-through 74. Two longitudinal cutters 81 are arranged at left and right intervals on one side of the cutting table 80, which is close to the material through hole 74, and when the hot rolled steel plate 14 moves to the front side, the longitudinal cutters 81 on the two sides complete the cutting of the left and right sides of the hot rolled steel plate 14.

Similarly, the left and right longitudinal cutters 81 can be adjusted to adjust the cutting position as needed.

When the movable frame 23 returns to the left after cutting is completed, the left and right sides of the positioning groove 65 are transited with the upper surface of the stand 10 through the inclined plane or the cambered surface, so that the positioning rod 60 is separated from the positioning groove 65, and the reset is completed.

In other embodiments, the end portions of the sliding frames 63 on both sides may be further provided with an infrared sensor or a distance sensor, which can automatically detect the lowest points of the depressions on both ends of the hot rolled steel sheet 14. The lowest point of the end recess of the hot rolled steel sheet 14 is the optimal position for cutting the left and right ends of the hot rolled steel sheet 14, and then the position of the longitudinal cutter 81 is adjusted to avoid cutting excessive scraps, thereby reducing the waste of materials to the greatest extent possible.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. The hot rolled steel plate cutting device comprises a stand, a front positioning module, a rear positioning module, a transverse cutter and a longitudinal cutter, and is characterized in that a bearing plate is vertically slid on the inner side of the stand, a moving frame is horizontally slid on the stand left and right, and the stand is also provided with a left positioning module, a right positioning module, a centering module and a pushing module;

The left and right positioning modules comprise hydraulic oil tanks arranged on the movable frame, a plurality of hydraulic rods communicated with the hydraulic oil tanks are horizontally arranged on opposite surfaces of the left and right sides of the movable frame at intervals, clamping rods which are vertically arranged are fixedly arranged on telescopic parts of the hydraulic rods, and a pump body is arranged on the hydraulic oil tanks;

The centering module comprises sliding frames which are bilaterally symmetrical and horizontally slide on the moving frames, a fixed seat which is positioned between the two sliding frames and is elastically connected with the two sliding frames in a sliding manner, a positioning rod which is vertically slid on the fixed seat and the axis of which is horizontally arranged along the front-back direction, and two positioning grooves which are arranged on the machine base in the front-back direction, wherein the positioning grooves are positioned on the left-right moving path of the positioning rod;

the pushing module comprises a pushing table horizontally sliding on the right side of the machine base back and forth, and a clamping plate vertically sliding on the pushing table, a material penetrating hole is formed in the front side of the machine base and corresponds to the pushing table, and the longitudinal cutter is arranged on the machine base and close to the material penetrating hole.

2. The hot rolled steel plate cutting device according to claim 1, wherein two groups of lifting cylinders are arranged in front of and behind the inner side of the stand, the telescopic part of each group of lifting cylinders is fixedly provided with a horizontally arranged bearing plate, the two bearing plates are arranged at intervals in front of and behind, and a channel which penetrates up and down is arranged between the two bearing plates.

3. The hot rolled steel plate cutting device according to claim 2, wherein a first screw is rotatably installed on the inner side of the machine base, the axis of the first screw is horizontally arranged along the left-right direction, the position of the first screw corresponds to the channel between the two bearing plates up and down, a moving block is screwed on the first screw, the moving block is in sliding fit with the front bearing plate and the rear bearing plate, and the moving block is fixedly connected with the moving frame.

4. The hot rolled steel plate cutting device according to claim 1, wherein the second screw is rotatably mounted on both left and right sides of the movable frame, and an axis of the second screw is horizontally arranged in a front-rear direction, and two adjusting blocks horizontally slidably engaged with the movable frame are mounted on the second screw, and a foremost hydraulic rod and a rearmost hydraulic rod of each hydraulic rod are respectively fixed to the corresponding adjusting blocks.

5. The hot rolled steel plate cutting device according to claim 1, wherein the two opposite sides of the moving frame are fixedly provided with telescopic rods, each telescopic rod is composed of two outer rods and two inner rods which are in sliding fit with each other, and one end of each telescopic rod, which is far away from the moving frame, is fixedly connected with the sliding frame.

6. The hot rolled steel sheet cutting device as claimed in claim 1, wherein the carriage has a T-shaped structure, and the carriage is slidably connected to the fixing base through a spring.

7. The hot rolled steel sheet cutting apparatus as claimed in claim 1, wherein the left and right sides of the positioning groove are transited with the upper surface of the stand by means of inclined planes or cambered surfaces so that the positioning rod is separated from the positioning groove.

8. The hot rolled steel sheet cutting device according to any one of claims 1 to 7, wherein a pushing cylinder is mounted on the rear side of the stand, the pushing table is fixedly arranged on a telescopic part of the pushing cylinder, the pushing table is of an L-shaped structure, a clamping cylinder is mounted on the bottom of the pushing table, the telescopic part of the clamping cylinder extends to the upper part of the pushing table, and the clamping plate is fixedly arranged on the telescopic part of the clamping cylinder.

9. The hot rolled steel sheet cutting apparatus as claimed in claim 8, wherein the transverse cutters are provided in two groups, and are respectively located at front and rear sides of the stand, and the transverse cutters are located on a path along which the workpiece moves to the right.

10. The hot rolled steel plate cutting device according to claim 9, wherein a cutting table is installed at the front side of the stand, the cutting table corresponds to the threading hole, the longitudinal cutters are installed at the cutting table, and two longitudinal cutters are arranged at left and right intervals.