Traction cross shear device

Abstract

The utility model discloses a traction cross shear device which comprises a left memorial archway and a right memorial archway which are symmetrically arranged, the top of the left memorial archway and the top of the right memorial archway are connected through a cross beam, knife rest oil cylinders and traction roller oil cylinders are arranged at the two ends of the cross beam respectively, and cylinder rods of the knife rest oil cylinders penetrate through the cross beam to be connected with the top of an upper knife rest. A lower cutter is arranged below the upper cutter; a cylinder rod of the traction roller oil cylinder penetrates through the cross beam and is connected with the bearing seats, two ends of the upper traction roller are respectively arranged on the corresponding bearing seats through bearings, the lower traction roller is arranged below the upper traction roller, one end of the upper traction roller is coupled with a rotating shaft of the hydraulic motor, and a fixing seat of the hydraulic motor is fixedly connected with the corresponding bearing seat; a material pressing strip and a lower supporting piece are arranged in front of the upper cutter and the lower cutter. When the materials are cut, the materials are clamped through the material pressing strip and the lower supporting piece, deformation of the materials during cutting is avoided, and the better cutting effect is achieved.

Description

A traction shear device Technical Field

[0001] This utility model relates to the technical field of rolling mill preparation equipment, and in particular to a traction cross-shearing device suitable for metal sheet processing. Background Technology

[0002] A cross shear is a device used to cut the head and tail of rolled stock laterally, and it is often installed within a slitting mill unit. With the rapid development of continuous rolling mills, cross shears have been used more and more widely.

[0003] The slitting unit cuts a strip of material of a certain width longitudinally into strips according to the required width. The cross-cutting unit, however, needs to remove burrs and uneven ends of the material during the cutting process. Due to the excessive distance between the cutting shears and the traction rollers, localized shear stress is generated during cutting, causing material deformation and resulting in deviations in subsequent cutting positions. Summary of the Invention

[0004] The purpose of this invention is to provide a traction shearing device to address the aforementioned problems in the existing technology.

[0005] The above-mentioned objectives of this utility model are achieved through the following technical means:

[0006] A traction shearing device includes a left and right archway symmetrically arranged. The tops of the left and right archways are connected by a crossbeam. Both ends of the crossbeam are equipped with a cutter holder cylinder and a traction roller cylinder. The cutter holder cylinder is located behind the traction roller cylinder. The cylinder rod of the cutter holder cylinder passes through the crossbeam and connects to the top of the upper cutter holder. An upper cutting shear is installed on the upper cutter holder, and a lower cutting shear is installed below the upper cutting shear. The cylinder rod of the traction roller cylinder passes through the crossbeam and connects to a bearing seat. Both ends of the upper traction roller are respectively installed on the corresponding bearing seats of the left and right archways via bearings. One end of the upper traction roller is shaft-connected to the rotating shaft of a hydraulic motor. The fixed seat of the hydraulic motor is fixedly connected to the corresponding bearing seat. A lower traction roller is installed below the upper traction roller.

[0007] Both the left and right archways are equipped with upper traction roller mounting grooves, and the bearing seats are installed in the upper traction roller mounting grooves.

[0008] Both the left and right archways are equipped with tool holder mounting slots. The cylinder rod of the tool holder cylinder passes through the crossbeam, extends into the tool holder mounting slot, and connects to the top of the upper tool holder.

[0009] A lower fixed base is provided between the left and right archways. The lower fixed base includes a lower blade holder and a lower support member, and the lower cutting shears are mounted on the lower blade holder.

[0010] The upper tool holder is provided with connectors on both sides of its top, and the connectors are provided with vertical limiting holes; it also includes an upper clamping member, which includes an upper clamping rod, which is movably disposed in the limiting holes. The diameters of the upper and lower ends of the upper clamping rod are larger than the diameter of the limiting holes; a spring is sleeved on the upper clamping rod, with the bottom end of the spring abutting against the lower end of the upper clamping rod and the top end of the spring abutting against the bottom surface of the connector; the upper clamping rod is located in front of the upper tool holder, and the bottom ends of the upper clamping rods located on both sides of the top of the upper tool holder are respectively connected to the two ends of the pressure bar, which is located above the lower support member.

[0011] Both the left and right archways are equipped with upper cutting shear synchronous racks, and upper cutting shear synchronous gear mounting seats are respectively provided on both sides of the top of the upper blade holder. The two ends of the shaft of the upper cutting shear synchronous gear are respectively mounted on the corresponding upper cutting shear synchronous gear mounting seats through bearings, and the upper cutting shear synchronous gear meshes with the corresponding upper cutting shear synchronous rack.

[0012] Both the left and right archways are provided with lower traction roller mounting grooves, the top of which is connected to the bottom of the upper traction roller mounting groove. Fixed side plates are provided on the outer walls of the left and right archways at the lower traction roller mounting grooves. The two ends of the lower traction roller are respectively located in the lower traction roller mounting grooves on the left and right archways, and the two ends of the lower traction roller are respectively mounted on the two fixed side plates on the outer walls of the left and right archways through bearings.

[0013] The bearing housing is connected to the bearing cover, and a bearing cover slide groove is provided on the inner side of the groove at the lower part of the upper traction roller mounting groove. The edge of the bearing cover is engaged in the bearing cover slide groove of the upper traction roller mounting groove.

[0014] The cylinder rod of the traction roller cylinder is provided with a traction roller synchronous gear mounting seat. The two ends of the wheel shaft of the upper traction roller synchronous gear are respectively mounted on the traction roller synchronous gear mounting seat through bearings. The upper traction roller synchronous rack is provided on the inner side of the upper traction roller mounting groove. The upper traction roller synchronous gear meshes with the upper traction roller synchronous rack.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1. A pressure bar and a lower support are installed in front of the cutting mechanism. When the material is cut, the material is first clamped by the pressure bar and the lower support to prevent the material from deforming during cutting and to achieve a better cutting effect.

[0017] 2. Through the cooperation of the upper traction roller synchronous gear and the upper traction roller synchronous rack, the upper traction roller ends move up and down synchronously, which limits the movement of the upper traction roller ends. When the cylinder rod extension and retraction deviation of the traction roller cylinder at both ends of the crossbeam is large, the two pairs of upper traction roller synchronous gears and upper traction roller synchronous racks located on both sides of the traction shearing device can play a certain locking role to prevent the tilted upper traction roller from damaging the components and materials below.

[0018] 3. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural diagram of this utility model;

[0020] Figure 2 is a schematic diagram of the left and right archways of this utility model;

[0021] Figure 3 is a structural schematic diagram of this utility model;

[0022] In the diagram, 1-left archway, 2-right archway, 3-lower fixed seat, 4-upper fixed seat, 5-upper traction roller, 6-bearing seat, 7-lower traction roller, 8-crossbeam, 9-traction roller cylinder; 10-blade holder cylinder, 11-hydraulic motor, 12-upper cutting shears, 13-lower cutting shears, 101-lower traction roller mounting slot, 102-fixed side plate, 103-upper traction roller mounting slot, 104-blade holder mounting slot, 301-lower blade holder, 302-lower support, 401-upper blade holder, 402-upper clamping component, 403-connector, 404-upper cutting shears synchronous rack, 405-upper cutting shears synchronous gear, 406-pressing strip, 501-upper traction roller synchronous gear, 502-upper traction roller synchronous rack. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0024] Example 1:

[0025] As shown in Figure 1, a traction shearing device includes a left archway 1 and a right archway 2 arranged symmetrically. The tops of the left archway 1 and the right archway 2 are connected by a crossbeam 8. The device also includes a traction mechanism and a cutting mechanism. The traction mechanism includes an upper traction roller 5 and a lower traction roller 7. The cutting mechanism includes an upper cutting shear 12, a lower cutting shear 13, a lower fixed seat 3, and an upper fixed seat 4.

[0026] As shown in Figures 2 and 3, both the left archway 1 and the right archway 2 are equipped with an upper traction roller mounting groove 103, a lower traction roller mounting groove 101, and a cutter holder mounting groove 104. The bottom of the upper traction roller mounting groove 103 is connected to the top of the lower traction roller mounting groove 101. The upper traction roller mounting groove 103 is located in front of the cutter holder mounting groove 104 (in Figure 2, the right side of the cutter holder mounting groove 104 is the front, i.e., the feeding side of the traction shearing device is the front, and the discharging side of the traction shearing device is the rear). Fixed supports are provided on the outer walls of the left archway 1 and the outer walls of the right archway 2 at the location of the lower traction roller mounting groove 101. Side plate 102 (the side of the left archway 1 facing away from the right archway 2 is the outer side of the left archway 1, and the side of the right archway 2 facing away from the left archway 1 is the outer side of the right archway 2). The two ends of the lower traction roller 7 are respectively located in the lower traction roller mounting groove 101 on the left archway 1 and the right archway 2. The two ends of the lower traction roller 7 are respectively set on two fixed side plates 102 on the outer side walls of the left archway 1 and the right archway 2 through bearings, so that the lower traction roller 7 can rotate freely relative to the fixed side plates 102, thereby fixing the lower traction roller 7 on the left archway 1 and the right archway 2 and allowing it to rotate freely relative to the left archway 1 and the right archway 2.

[0027] Traction roller cylinders 9 are respectively installed at both ends of the crossbeam 8. The cylinder rod of the traction roller cylinder 9 passes through the crossbeam 8 and extends into the corresponding upper traction roller mounting groove 103. The cylinder rod of the traction roller cylinder 9 is connected to the bearing seat 6 through the cylinder connector. The two ends of the upper traction roller 5 are respectively installed on the bearing seats 6 in the upper traction roller mounting groove 103 of the left archway 1 and the right archway 2 through bearings. Driving the traction roller cylinder 9 can realize the up and down movement of the upper traction roller 5. One end of the upper traction roller 5 is shaft-connected to the rotating shaft of the hydraulic motor 11. Driving the hydraulic motor 11 can realize the rotation of the upper traction roller 5. The fixed seat of the hydraulic motor 11 is fixedly connected to the corresponding bearing seat 6 so that the hydraulic motor 11 can follow the movement when the upper traction roller 5 moves.

[0028] Furthermore, the bearing housing 6 is connected to the bearing cover, and a bearing cover slide groove is provided on the inner side of the groove at the lower part of the upper traction roller mounting groove 103. The edge of the bearing cover is engaged in the bearing cover slide groove of the upper traction roller mounting groove 103, so that the bearing housing 6 can slide relative to the upper traction roller mounting groove 103. The cooperation between the bearing cover slide groove rail and the bearing cover plays a role in guiding and limiting the bearing housing 6 up and down, thereby making the upper traction roller 5 more stable when moving up and down.

[0029] In some embodiments, a traction roller synchronous gear mounting seat is provided on the cylinder rod of the traction roller cylinder 9. The two ends of the axle of the upper traction roller synchronous gear 501 are respectively mounted on the traction roller synchronous gear mounting seat through bearings. An upper traction roller synchronous rack 502 is provided on the inner side of the groove at the upper part of the upper traction roller mounting groove 103. The upper traction roller synchronous gear 501 meshes with the upper traction roller synchronous rack 502. The cylinder rods of the traction roller cylinders 9 at both ends of the crossbeam 8 move up and down synchronously by the cylinder drive device. The cooperation between the upper traction roller synchronous gear 501 and the upper traction roller synchronous rack 502 plays a limiting role in the synchronous up and down movement of the two ends of the upper traction roller 5. When the extension and retraction deviation of the cylinder rods of the traction roller cylinders 9 at both ends of the crossbeam 8 is large, the two pairs of upper traction roller synchronous gears 501 and upper traction roller synchronous racks 502 located on both sides of the traction shearing device can play a certain locking role to prevent the tilted upper traction roller 5 from damaging the components and materials below.

[0030] Tool holder cylinders 10 are also provided at both ends of the crossbeam 8. The cylinder rods of the tool holder cylinders 10 pass through the crossbeam 8 and extend into the tool holder mounting slots 104. The cylinder rods of the tool holder cylinders 10 at both ends of the crossbeam 8 are respectively connected to the upper fixed seat 4. The upper fixed seat 4 includes a vertically arranged upper tool holder 401. The cylinder rods of the tool holder cylinders 10 located in the tool holder mounting slots 104 are connected to the top of the upper tool holder 401 through a cylinder connector. The upper tool holder 401 is movably locked in the tool holder mounting slots 104 of the left archway 1 and the right archway 2 on both sides. The upper tool holder 401 can move up and down along the tool holder mounting slots 104. Connectors 403 are respectively provided on the top two sides of the upper tool holder 401. Vertical limiting holes are provided on the connectors 403. The upper clamping member 402 includes an upper clamping rod, which is movably disposed in the limiting holes. The upper clamping rod can be positioned relative to the upper clamping member 402. The limiting perforation slides freely up and down. The diameters of the upper and lower ends of the upper clamping rod are larger than the diameter of the limiting perforation, so that the upper clamping rod will not come out of the limiting perforation. A spring is sleeved on the upper clamping rod. The bottom end of the spring abuts against the lower end of the upper clamping rod, and the top end of the spring abuts against the bottom surface of the connector 403. The upper clamping rod is located in front of the upper blade holder 401 (the feeding side of the traction cross-cutting device is the front). The bottom ends of the upper clamping rods located on both sides of the top of the upper blade holder 401 are respectively connected to the two ends of the pressure bar 406. The bottom of the upper blade holder 401 is provided with an upper cutting shear 12. Specifically, the upper blade holder 401 is provided with an upper blade holder threaded hole. The upper cutting shear fixing screw passes through the through hole of the upper cutting shear 12 and is screwed into the upper blade holder threaded hole on the upper blade holder 401, so that the bottom of the upper blade holder 401 is fixedly connected to the upper cutting shear 12.

[0031] A lower fixed base 3 is provided between the left archway 1 and the right archway 2. The lower fixed base 3 includes a lower blade holder 301 and a lower support member 302. The lower cutting shears 13 are mounted on the lower blade holder 301 and are located below the upper cutting shears 12. Specifically, the lower blade holder 301 is provided with a lower blade holder threaded hole. The lower cutting shear fixing screw passes through the through hole of the lower cutting shears 13 and is screwed into the lower blade holder threaded hole of the lower blade holder 301, so that the lower blade holder 301 and the lower cutting shears 13 are fixedly connected. The upper cutting shears 12 are tangent to the lower cutting shears 13. When the upper cutting shears 12 moves downward relative to the lower cutting shears 13, the material is cut. The lower support member 302 is located below the pressure bar 406. When the cylinder rod of the hydraulic cylinder 10 moves downward, it drives the pressure bar 406 to move downward until the pressure bar 406 presses the material onto the lower support 302. At this time, the upper cutting shears 12 and the lower cutting shears 13 are not in contact. The cylinder rod of the blade holder hydraulic cylinder 10 continues to move downward, and the upper clamping rod of the upper clamping member 402 moves upward along the limiting through hole. However, under the action of the spring, the pressure bar 406 keeps the material pressed tightly onto the lower support 302, preventing the material from deforming when the upper cutting shears 12 and the lower cutting shears 13 are cutting. This results in a better cutting effect when the upper cutting shears 12 and the lower cutting shears 13 work together to cut the material. The upper cutting shears 12 and the lower cutting shears 13 achieve the cutting of the material.

[0032] In some embodiments, both the left archway 1 and the right archway 2 are provided with upper cutting shear synchronous racks 404, and upper cutting shear synchronous gear mounting seats are respectively provided on both sides of the top of the upper blade holder 401. The two ends of the axle of the upper cutting shear synchronous gear 405 are respectively mounted on the corresponding upper cutting shear synchronous gear mounting seats through bearings, and the upper cutting shear synchronous gear 405 meshes with the corresponding upper cutting shear synchronous rack 404.

[0033] In use, when the material head is fed below the upper traction roller 5, the traction roller cylinder 9 is activated, and the upper traction roller 5 moves downward to cooperate with the lower traction roller 7 to clamp the material. Then, the hydraulic motor 11 installed at one end of the upper traction roller 5 is activated, and the hydraulic motor 11 drives the upper traction roller 5 to rotate, thereby achieving the traction of the material. When the material head reaches below the upper cutting shear 12, the hydraulic motor 11 is turned off, and the material head stops moving. Then, the blade holder cylinder 10 is activated, and the upper fixed seat 4 moves downward, driving the upper cutting shear 12 to move downward. Before the upper cutting shear 12 contacts the material head, the upper clamping member 402 first cooperates with the lower support member 302 to clamp the material head.

[0034] As the upper cutting shears 12 continue to move downwards, they eventually work together with the lower cutting shears 13 to cut the material head. Before the cutting is completed, the upper clamping member 402 is subjected to an upward force, causing it to move upwards relative to the upper fixed seat 4. Since a spring is provided on the rod of the upper clamping member 402, the spring deforms and exerts a downward force on the lower end of the upper fixed seat 4, keeping the upper fixed seat 4 and the lower support member 302 clamping the material head. After the material head is cut, the blade holder cylinder 10 is activated to reset the upper cutting shears 12, and the upper traction roller 5 remains in a downward pressing state. Then, the hydraulic motor 11 is activated to continue to pull the material. When the material tail reaches below the upper cutting shears 12, the hydraulic motor 11 is turned off, the upper traction roller 5 stops rotating, and the traction roller cylinder 9 is activated again to make the upper cutting shears 12 move downwards, repeating the cutting action to complete the cutting of the material tail.

[0035] In this invention, the hydraulic motor 11 can be replaced by an electric motor.

[0036] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and all fall within the scope of protection of this utility model.

Claims

1. A traction shearing device, comprising a left archway (1) and a right archway (2) symmetrically arranged, characterized in that, The tops of the left archway (1) and the right archway (2) are connected by a crossbeam (8). Both ends of the crossbeam (8) are equipped with a knife holder cylinder (10) and a traction roller cylinder (9). The knife holder cylinder (10) is located behind the traction roller cylinder (9). The cylinder rod of the knife holder cylinder (10) passes through the crossbeam (8) and is connected to the top of the upper knife holder (401). An upper cutting shear (12) is installed on the upper knife holder (401), and a lower cutting shear is installed below the upper cutting shear (12). (13); The cylinder rod of the traction roller cylinder (9) passes through the crossbeam (8) and is connected to the bearing seat (6). The two ends of the upper traction roller (5) are respectively set on the bearing seats (6) of the left archway (1) and the right archway (2) through bearings. One end of the upper traction roller (5) is connected to the rotating shaft of the hydraulic motor (11). The fixed seat of the hydraulic motor (11) is fixedly connected to the corresponding bearing seat (6). The lower traction roller (7) is set below the upper traction roller (5).

2. The traction shear device according to claim 1, characterized in that, Both the left archway (1) and the right archway (2) are provided with upper traction roller mounting grooves (103), and the bearing seat (6) is set in the upper traction roller mounting grooves (103).

3. The traction shear device according to claim 2, characterized in that, Both the left archway (1) and the right archway (2) are provided with tool holder mounting slots (104). The cylinder rod of the tool holder cylinder (10) passes through the crossbeam (8) and extends into the tool holder mounting slot (104) and connects to the top of the upper tool holder (401).

4. A traction shear device according to claim 3, characterized in that, A lower fixed seat (3) is provided between the left archway (1) and the right archway (2). The lower fixed seat (3) includes a lower blade holder (301) and a lower support member (302). The lower cutting shears (13) are provided on the lower blade holder (301).

5. A traction shearing device according to claim 4, characterized in that, The upper tool holder (401) is provided with connecting parts (403) on both sides of the top, and the connecting parts (403) are provided with vertical limiting holes; it also includes an upper clamping part (402), which includes an upper clamping rod, which is movably disposed in the limiting holes, and the diameter of the upper and lower ends of the upper clamping rod is larger than the diameter of the limiting holes; a spring is sleeved on the upper clamping rod, the bottom end of the spring abuts against the lower end of the upper clamping rod, and the top end of the spring abuts against the bottom surface of the connecting part (403); the upper clamping rod is located in front of the upper tool holder (401), and the bottom ends of the upper clamping rods located on both sides of the top of the upper tool holder (401) are respectively connected to the two ends of the pressure bar (406), and the pressure bar (406) is located above the lower support (302).

6. A traction shearing device according to claim 5, characterized in that, Both the left archway (1) and the right archway (2) are equipped with upper cutting shear synchronous racks (404), and the upper cutter holder (401) is also equipped with upper cutting shear synchronous gear mounting seats on both sides of the top. The two ends of the axle of the upper cutting shear synchronous gear (405) are respectively mounted on the corresponding upper cutting shear synchronous gear mounting seats through bearings. The upper cutting shear synchronous gear (405) meshes with the corresponding upper cutting shear synchronous rack (404).

7. A traction shear device according to claim 3, characterized in that, The left archway (1) and the right archway (2) are each provided with a lower traction roller mounting groove (101), the top of the lower traction roller mounting groove (101) is connected to the bottom of the upper traction roller mounting groove (103); the outer wall of the left archway (1) and the outer wall of the right archway (2) are each provided with a fixed side plate (102) located at the lower traction roller mounting groove (101), the two ends of the lower traction roller (7) are respectively located in the lower traction roller mounting groove (101) on the left archway (1) and the right archway (2), and the two ends of the lower traction roller (7) are respectively set on the two fixed side plates (102) provided on the outer walls of the left archway (1) and the right archway (2) through bearings.

8. A traction shearing device according to claim 2, characterized in that, The bearing seat (6) is connected to the bearing cover. A bearing cover slide groove is provided on the inner side of the groove at the lower part of the upper traction roller mounting groove (103). The edge of the bearing cover is engaged in the bearing cover slide groove of the upper traction roller mounting groove (103).

9. A traction shear device according to claim 2, characterized in that, The cylinder rod of the traction roller cylinder (9) is provided with a traction roller synchronous gear mounting seat. The two ends of the wheel shaft of the upper traction roller synchronous gear (501) are respectively mounted on the traction roller synchronous gear mounting seat through bearings. The upper traction roller synchronous rack (502) is provided on the inner side of the groove at the upper part of the upper traction roller mounting groove (103). The upper traction roller synchronous gear (501) meshes with the upper traction roller synchronous rack (502).

Images