Automatic synchronous shear device for casting and rolling machine

Abstract

The utility model relates to the technical field of synchronous shearing devices, and particularly discloses an automatic synchronous shearing device for a casting and rolling machine, the synchronous shearing device comprises a base, a driving device, a rack and a shearing assembly arranged on the rack, the output end of the driving device is connected with a ball screw assembly, and the ball screw assembly is connected with the bottom of the rack. The machine frame is arranged on the base in a sliding mode and located on one side of a discharging port of the casting and rolling machine, the shearing assembly comprises two sets of hydraulic assemblies, a buffering assembly, an upper tool rest and a lower tool rest, the hydraulic assemblies are symmetrically arranged on the two sides of the machine frame respectively, and the output ends of the two sets of hydraulic assemblies are connected with the two ends of the upper tool rest respectively. According to the design of the shearing assembly, the hydraulic assembly can drive the upper tool rest to move up and down so as to drive the upper tool rest to be in contact with or separated from the lower tool rest, and the buffering assembly buffers the up-and-down moving force of the upper tool rest, so that the problem that a plate blank is easily affected by the impact force of the upper tool rest, and consequently shearing openings are expanded to be poor is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic synchronous shearing devices, in particular to an automatic synchronous shearing device for a casting and rolling mill. Background Art

[0002] In the process of casting and rolling products, the slab of the casting and rolling machine is cast and rolled out from the double rollers, and then the cast and rolled slab needs to be sheared and cut into several pieces. However, the speed of the synchronous shearing device during the shearing process cannot be consistent with the speed of the double rollers of the casting and rolling machine, and the shearing speed cannot be adjusted and controlled. If the shearing blade moves too fast, it is easy for the shearing blade to clamp the plate and pull it outward, causing the slab discharged from the casting and rolling machine to become thinner, resulting in defective or scrapped slabs; if the shearing blade moves too slowly, it is easy to get stuck at the bottom of the slab, and in severe cases, the shearing blade cannot be disengaged, so it is necessary to stop the machine for adjustment, and the loss caused by the stoppage is huge;

[0003] In the process of shearing, the hydraulic assembly will drive the upper tool holder to move up and down, and it will contact the lower tool holder violently when moving downward, which will cause the shear mouth of the slab to expand outward, resulting in defective slab. Therefore, it is urgent to design an automatic synchronous shear device for casting and rolling mill to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic synchronous shearing device for a casting and rolling mill, which solves the problem that the above-mentioned shearing device is not synchronized with the discharge of the casting and rolling mill, resulting in defective or scrapped slabs, and the problem that there is no buffering force when the upper tool holder contacts the lower tool holder, causing the shear mouth of the slab to expand outward, resulting in defective slabs.

[0005] In order to solve the above technical problems, the utility model provides an automatic synchronous shearing device for a casting and rolling mill, the synchronous shearing device comprises a base, a driving device, a frame and a shearing assembly arranged on the frame.

[0006] The output end of the driving device is connected to a ball screw assembly, and the ball screw assembly is connected to the bottom of the frame. The frame is slidably arranged on the base and is located on one side of the discharge port of the casting and rolling mill.

[0007] The shearing assembly includes a hydraulic assembly, a buffer assembly, an upper tool holder and a lower tool holder. The hydraulic assembly has two groups and is symmetrically arranged on both sides of the frame. The output ends of the two groups of hydraulic assemblies are respectively connected to the two ends of the upper tool holder. The upper part of the buffer assembly is connected to the frame, and the lower part is connected to the upper tool holder. The two ends of the lower tool holder are respectively connected to the two sides of the frame and are located below the upper tool holder. The two groups of hydraulic assemblies drive the upper tool holder to contact or separate from the lower tool holder.

[0008] Furthermore, both sides of the frame are provided with through slots for the upper tool holder to move, and the two ends of the upper tool holder extend out through the through slots and are connected to the output ends of the two groups of hydraulic components, and the lower part of the upper tool holder is provided with an upper blade;

[0009] The two ends of the lower knife holder are respectively connected to the two side brackets of the frame, and the upper part of the lower knife holder is equipped with a lower knife that cooperates with the upper knife for shearing.

[0010] Furthermore, the buffer components have at least two, each of which includes a fixed seat and a buffer rod, the fixed seat is embedded in the top of the frame and fixed to the frame by a fastener, the lower end of the buffer rod extends through the fixed seat and is connected to the upper tool holder, and a buffer spring is sleeved on its outer side, and the buffer spring is located between the upper tool holder and the frame.

[0011] Furthermore, each group of the hydraulic components includes a fixed frame, a hydraulic cylinder and a pin shaft, the fixed frame is arranged on one side of the frame, the hydraulic cylinder is inserted into the fixed frame, and its output end extends out of the fixed frame and is connected to a connecting seat, the upper tool holder is installed in the connecting seat, the pin shaft is inserted into the upper tool holder, and its two ends pass through the connecting seat and are limited by a limiting member.

[0012] Furthermore, the driving device is a variable frequency motor, and the variable frequency motor is connected to an encoder.

[0013] Furthermore, two slide rails are symmetrically arranged on the base, and a plurality of sliding blocks that slide in cooperation with the two slide rails are fixedly connected to the bottom of the frame.

[0014] Furthermore, the ball screw assembly includes a first bearing seat, a second bearing seat, a ball screw and a ball bearing sleeve. The first bearing seat and the second bearing seat are respectively arranged at two ends of the base and are located side by side between the two slide rails. One end of the ball screw is connected to the driving device, and the other end passes through the first bearing seat and the bottom of the frame and then extends into the second bearing seat. The ball bearing sleeve is sleeved on the ball screw, and its upper part is fixedly connected to the frame.

[0015] Furthermore, a guide plate is obliquely arranged in the frame, the guide plate is located below the lower tool holder, a conveying guide roller assembly is provided on one side of the discharge port of the guide plate, and the conveying guide roller assembly is fixedly arranged on a side of the frame away from the lower tool holder.

[0016] Beneficial effects of the utility model: the driving device of the utility model drives the ball screw of the ball screw assembly to rotate, so as to drive the ball bearing sleeve mounted on the ball screw to move, so as to drive the frame to slide on the bottom frame, and encodes the rotation speed of the driving device through an encoder, and calculates and adjusts the encoded data through a control unit, so as to synchronize the movement speed of the driving device with the discharge speed of the casting and rolling mill, so as to improve the synchronization performance of the two devices, and avoid the problem of defective or scrapped slabs due to the mismatch of the speeds of the two devices during the shearing process;

[0017] The design of the shearing assembly can drive the upper tool holder to move up and down through the hydraulic assembly, so as to drive it to contact or separate with the lower tool holder, and buffer the force of the upper tool holder moving up and down through the buffer assembly, thereby solving the problem that the slab is easily affected by the impact of the upper tool holder and causes the shearing edge to expand outward;

[0018] The design of the through slots on both sides of the frame can effectively limit the upper tool holder's upward and downward movement position to avoid the problem of the upper tool holder flying out;

[0019] The design of the guide plate obliquely arranged in the frame can allow the sheared material to pass through the guide plate to the conveying guide roller assembly, and then be output to the next process through the conveying guide roller on the conveying guide roller assembly, so as to improve the conveying rate of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a sectional view of the overall structure of an automatic synchronous shearing device for a casting and rolling mill of the utility model, and the sectional view of the overall structure contains a schematic diagram of the state of the synchronous shearing device away from the casting and rolling mill;

[0022] Figure 2 This is a left view of an automatic synchronous shearing device for a casting and rolling mill of the utility model;

[0023] Figure 3 It is a schematic diagram of a synchronous shearing device of an automatic synchronous shearing device for a casting and rolling mill of the utility model, in a state where the synchronous shearing device is close to the casting and rolling mill;

[0024] Figure 4 It is a cross-sectional view of a hydraulic assembly on one side of a frame of an automatic synchronous shearing device for a casting and rolling mill of the utility model;

[0025] In the figure: 1-synchronous shearing device, 2-casting and rolling machine, 3-slide rail, 4-slider, 11-base, 12-driving device, 13-frame, 14-shearing assembly, 16-ball screw assembly, 18-guide plate, 19-conveying guide roller assembly, 131-through slot, 141-hydraulic assembly, 142-buffer assembly, 143-upper tool holder, 144-lower tool holder, 145-upper blade, 146-lower blade, 1411-fixed frame, 1412-hydraulic cylinder, 1413-pin shaft, 1414-connecting seat, 1415-limiting member, 1421-fixed seat, 1422-buffer rod, 1423-buffer spring, 161-first bearing seat, 162-second bearing seat, 163-ball screw, 164-ball bearing sleeve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings of the utility model specification to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In a specific embodiment of the present invention, Figure 1-4 As shown, an automatic synchronous shearing device for a casting and rolling mill is specifically disclosed. The synchronous shearing device 1 includes a base 11, a driving device 12, a frame 13, and a shearing assembly 14 arranged on the frame 13.

[0028] The driving device 12 is a variable frequency motor, which is connected to an encoder, which is connected to a control unit. The output end of the driving device 12 is connected to a ball screw assembly 16, which is connected to the bottom of the frame 13. Two slide rails 3 are symmetrically arranged on the base 11. A plurality of sliders 4 that slide in cooperation with the two slide rails 3 are fixedly connected to the bottom of the frame 13. The frame 13 is slidably arranged on the base 11 and is located on one side of the discharge port of the casting and rolling machine 2.

[0029] A power drag chain 17 is provided on both sides of the frame 13, and the power drag chain 17 is used to stably support the frame 13 to slide on the base 11. A guide plate 18 is obliquely arranged in the frame 13, and the guide plate 18 is located below the lower knife frame 144. A conveying guide roller assembly 19 is provided on one side of the discharge port of the guide plate 18. The conveying guide roller assembly 19 is fixed to the side of the frame 13 away from the lower knife frame 144, and a guide roller capable of conveying materials is provided on the conveying guide roller assembly 19.

[0030] The shearing assembly 14 includes a hydraulic assembly 141, a buffer assembly 142, an upper tool holder 143 and a lower tool holder 144. The hydraulic assembly 141 has two groups, which are symmetrically arranged on both sides of the frame 13. The output ends of the two groups of hydraulic assemblies 141 are respectively connected to the two ends of the upper tool holder 143. The upper part of the buffer assembly 142 is connected to the frame 13, and the lower part is connected to the upper tool holder 143. Both sides of the frame 13 are provided with through slots 131 for the upper tool holder 143 to move. The two ends of the upper tool holder 143 extend out after passing through the through slots 131 and are connected to the output ends of the two groups of hydraulic assemblies 141. The lower part of the upper tool holder 143 is installed with an upper blade 145.

[0031] The two ends of the lower tool holder 144 are respectively connected to the two side brackets of the frame 13 and are located below the upper tool holder 143. The two ends of the lower tool holder 144 are respectively connected to the two side brackets of the frame 13. The upper part of the lower tool holder 144 is equipped with a lower blade 146 corresponding to the upper blade 145 and cooperating with shearing, and the lower blade 146 is located below the discharge port of the casting and rolling machine 2. Two groups of hydraulic components 141 drive the upper tool holder 143 to contact or separate with the lower tool holder 144, and the control unit is connected to the two groups of hydraulic components 141.

[0032] The buffer components 142 have at least two, each buffer component 142 includes a fixed seat 1421 and a buffer rod 1422, the buffer rod 1422 and the fixed seat 1421 are connected by threads, an adjustment handle is provided on the top of the buffer rod 1422, the fixed seat 1421 is embedded in the top of the frame 13, and is fixed to the frame 13 by fasteners, the lower end of the buffer rod 1422 passes through the fixed seat 1421 and then extends out and is connected to the upper tool holder 143, and a buffer spring 1423 is provided on its outer side, and the buffer spring 1423 is located between the upper tool holder 143 and the frame 13.

[0033] Each hydraulic assembly 141 includes a fixed frame 1411, a hydraulic cylinder 1412 and a pin 1413. The fixed frame 1411 is arranged on one side of the frame 13. The hydraulic cylinder 1412 is penetrated on the fixed frame 1411, and its output end extends out of the fixed frame 1411 and is connected to a connecting seat 1414. An upper tool holder 143 is installed in the connecting seat 1414. The pin 1413 is penetrated on the upper tool holder 143, and both ends thereof pass through the connecting seat 1414 and are limited by a limiting member 1415.

[0034] The ball screw assembly 16 includes a first bearing seat 161, a second bearing seat 162, a ball screw 163 and a ball bearing sleeve 164. The first bearing seat 161 and the second bearing seat 162 are respectively arranged at both ends of the base 11 and are located in parallel between the two slide rails 3. One end of the ball screw 163 is connected to the driving device 12, and the other end passes through the first bearing seat 161 and the bottom of the frame 13 and then extends into the second bearing seat 162. The ball bearing sleeve 164 is sleeved on the ball screw 163, and its upper part is fixedly connected to the frame 13.

[0035] The workflow of this utility model:

[0036] During shearing, the control unit controls the hydraulic cylinders 1412 of the two hydraulic assemblies 141 to contract simultaneously, so as to drive the upper tool holder 143 downward to approach the lower tool holder 144. At the same time, the slabs cast and rolled by the casting and rolling machine 2 are output from the double rollers. During the output process, the control unit transmits the output speed to the encoder through a signal. The encoder compiles and converts the received data into an electrical signal and sends it to the drive device 12 to adjust the rotation speed of the drive device 12 to control the rotation speed of the ball screw 163 and the travel speed of the ball bearing sleeve 164 thereon, so as to adjust the moving speed of the frame 13 and the casting and rolling machine 2. The discharging speed of the casting and rolling mill 2 is consistent. When the material of the casting and rolling mill 2 is outputted toward the frame 13, the control unit controls the hydraulic cylinder 1412 of the hydraulic assembly 141 to continue to contract to drive the upper blade 145 to cooperate with the lower blade 146 to shear the slab. During the shearing process, the frame 13 continues to move toward the casting and rolling mill 2 under the drive of the driving device 12 and the ball screw assembly 16, so that the synchronous shearing device 1 can also shear the material cast and rolled by the casting and rolling mill 2 while moving, and can also realize the function of automatic shearing to improve the shearing efficiency and effectively avoid the significant losses caused by downtime;

[0037] After the shearing is completed, the sheared slab falls onto the guide plate 18, slides from the guide plate 18 to the conveying guide roller assembly 19, and is conveyed to the next process through the guide rollers on the conveying guide roller assembly 19 to realize the automation function of the synchronous shearing device 1 to avoid the problem of the slab falling directly into the frame and causing damage.

[0038] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An automatic synchronous shearing device for a casting and rolling mill, characterized in that: The synchronous shearing device (1) comprises a base (11), a driving device (12), a frame (13), and a shearing assembly (14) arranged on the frame (13). The output end of the driving device (12) is connected to a ball screw assembly (16), the ball screw assembly (16) is connected to the bottom of the frame (13), the frame (13) is slidably arranged on the base (11) and is located on one side of the discharge port of the casting and rolling machine (2), The shearing assembly (14) comprises a hydraulic assembly (141), a buffer assembly (142), an upper tool holder (143) and a lower tool holder (144). The hydraulic assembly (141) comprises two groups, which are symmetrically arranged on both sides of the frame (13). The output ends of the two groups of hydraulic assemblies (141) are respectively connected to both ends of the upper tool holder (143). The upper part of the buffer assembly (142) is connected to the frame (13), and the lower part is connected to the upper tool holder (143). The two ends of the lower tool holder (144) are respectively connected to both sides of the frame (13) and are located below the upper tool holder (143). The two groups of hydraulic assemblies (141) drive the upper tool holder (143) to contact or separate from the lower tool holder (144).

2. The automatic synchronous shearing device for a casting and rolling mill according to claim 1, characterized in that: Both sides of the frame (13) are provided with through slots (131) for the upper tool holder (143) to move, and the two ends of the upper tool holder (143) respectively pass through the through slots (131) and then extend out, and are connected to the output ends of the two groups of hydraulic components (141), and the lower part of the upper tool holder (143) is equipped with an upper blade (145); A lower blade (146) is installed on the upper portion of the lower blade holder (144) for shearing in cooperation with the upper blade (145).

3. The automatic synchronous shearing device for a casting and rolling mill according to claim 1, characterized in that: The buffer components (142) have at least two, each of the buffer components (142) comprises a fixed seat (1421) and a buffer rod (1422), the fixed seat (1421) is embedded in the top of the frame (13), and is fixed to the frame (13) by a fastener, the lower end of the buffer rod (1422) passes through the fixed seat (1421) and then extends out and is connected to the upper tool holder (143), and a buffer spring (1423) is sleeved on the outer side of the buffer rod (1422), and the buffer spring (1423) is located between the upper tool holder (143) and the frame (13).

4. The automatic synchronous shearing device for a casting and rolling mill according to claim 1, characterized in that: Each group of the hydraulic components (141) comprises a fixing frame (1411), a hydraulic cylinder (1412) and a pin shaft (1413); the fixing frame (1411) is arranged on one side of the frame (13); the hydraulic cylinder (1412) is inserted into the fixing frame (1411), and its output end extends out of the fixing frame (1411) and is connected to a connecting seat (1414); the upper tool holder (143) is installed in the connecting seat (1414); the pin shaft (1413) is inserted into the upper tool holder (143), and its two ends pass through the connecting seat (1414) and are limited by a limiting member (1415).

5. The automatic synchronous shearing device for a casting and rolling mill according to claim 1, characterized in that: The driving device (12) is a variable frequency motor, and the variable frequency motor is connected to an encoder.

6. The automatic synchronous shearing device for a casting and rolling mill according to claim 1, characterized in that: Two slide rails (3) are symmetrically arranged on the base (11), and a plurality of slide blocks (4) that slide in cooperation with the two slide rails (3) are fixedly connected to the bottom of the frame (13).

7. The automatic synchronous shearing device for a casting and rolling mill according to claim 6, characterized in that: The ball screw assembly (16) comprises a first bearing seat (161), a second bearing seat (162), a ball screw (163) and a ball bearing sleeve (164); the first bearing seat (161) and the second bearing seat (162) are respectively arranged at two ends of the base (11) and are located in parallel between the two slide rails (3); one end of the ball screw (163) is connected to the driving device (12), and the other end passes through the first bearing seat (161) and the bottom of the frame (13) and then extends into the second bearing seat (162); the ball bearing sleeve (164) is sleeved on the ball screw (163), and its upper part is fixedly connected to the frame (13).

8. The automatic synchronous shearing device for a casting and rolling mill according to claim 1, characterized in that: A guide plate (18) is obliquely arranged inside the frame (13), and the guide plate (18) is located below the lower knife holder (144). A conveying guide roller assembly (19) is provided on one side of the discharge port of the guide plate (18), and the conveying guide roller assembly (19) is fixedly arranged on a side of the frame (13) away from the lower knife holder (144).

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