A cold rolling mill disc shear anti-fragment jump device

Abstract

The utility model discloses a kind of cold rolling mill disc shears anti-fragment jump device, it is related to cold rolling mill technical field, including disc shears and scrap edge guide chute being installed on disc shearing machine box, the disc shearing machine box is fixedly connected with threaded column, the threaded column is fixedly connected with mounting plate, the one side of mounting plate is fixedly connected with G-shaped block, G-shaped block is attached disc shearing machine box, detachably setting has extension rod in G-shaped block, the lower end of extension rod is fixedly connected with baffle, baffle is located scrap edge guide chute feed inlet and is close to the position of cutter disc of disc shears.The utility model, set in disc shearing scrap edge machine position, by the setting of baffle, can further prevent fragment jump, to promote fragment to slide into scrap edge guide chute, improve trimming scrap edge efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling mill technology, and more specifically to a device for preventing fragments from jumping off the disc shears in a cold rolling mill. Background Technology

[0002] Cold rolling mills are key pieces of equipment in the metal processing industry, primarily used to further roll hot-rolled strip steel into cold-rolled strip steel of thinner specifications. During the cold rolling process, disc shears serve as cutting tools to cut the strip steel to the required dimensions. However, in actual operation, due to variations in material properties, wear conditions, and operating conditions, disc shears may produce fragments or skipped strips, which not only affects product quality but may also pose a threat to equipment and personnel safety.

[0003] Traditional disc shears lack effective measures to prevent debris from flying out of the shearing area during the cutting process, posing a safety hazard and potentially polluting the working environment.

[0004] In existing designs, although there is usually a guide chute to collect the scrap after cutting, due to the lack of a targeted design, many fragments cannot slide smoothly into the guide chute and instead scatter around the equipment, increasing the difficulty of cleaning.

[0005] Therefore, it is necessary to propose a device for preventing fragment jumping of discs in cold rolling mills to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem that in existing designs, although a guide trough is usually provided to collect the scrap after cutting, many fragments cannot slide smoothly into the guide trough due to the lack of targeted design, but instead scatter around the equipment, increasing the difficulty of cleaning.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A device for preventing scrapping of disc shears in a cold rolling mill includes a disc shear and a scraping guide chute installed on the disc shear housing. A threaded column is fixedly connected to the disc shear housing, and a mounting plate is fixedly connected to the threaded column. A G-block is fixedly connected to one side of the mounting plate. The G-block fits into the disc shear housing. An extension rod is detachably installed in the G-block. A baffle is fixedly connected to the lower end of the extension rod. The baffle is located at the feed inlet of the scraping guide chute and close to the cutter head of the disc shear.

[0009] Furthermore, a threaded rod is threadedly connected to the middle of the G-block, and a top block is rotatably connected to the end of the threaded rod located in the G-block. The top block is slidably connected to the hollow part of the G-block and is used to press against the extension rod.

[0010] Furthermore, a row of limiting holes is provided on the side of the extension rod, and a limiting block that can be inserted into the limiting hole is fixedly connected to the side of the top block facing the extension rod.

[0011] Furthermore, a nut is threaded onto the outer side of the threaded column, and the nut presses against the mounting plate, thereby temporarily fixing the mounting plate to the disc shear machine housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model is installed at the position of the disc shearing and shredding machine. By setting the baffle, it can further prevent the fragments from jumping off the disc, thereby causing the fragments to slide into the shredding guide groove, thus improving the cutting and shredding efficiency.

[0014] 2. This utility model, through the setting of a detachable extension rod, facilitates the overall maintenance or replacement of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a three-dimensional separation diagram of the connection structure at the extension rod and the G-block in this utility model.

[0017] Reference numerals in the attached diagram: 1. Disc shear housing; 2. Disc shear; 3. Edge guide chute; 4. Threaded column; 5. Mounting plate; 6. G-block; 7. Threaded rod; 8. Top block; 9. Extension rod; 10. Baffle; 11. Limiting hole; 12. Nut; 13. Limiting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 2A device for preventing scrapping of disc shears in a cold rolling mill includes a disc shear 2 and a scrap guide chute 3 mounted on a disc shear housing 1. A threaded post 4 is fixedly connected to the disc shear housing 1, securely attached to the outer wall of the housing 1 by welding or high-strength bolts, serving as the mounting base for the entire device. A mounting plate 5 is fixedly connected to the threaded post 4, with a through hole in its center, and is fitted onto the threaded post 4. By tightening the nut 12 on the outer surface of the threaded post 4, the mounting plate 5 is tightly pressed against the side wall of the disc shear housing 1, achieving temporary rigid fixation between the mounting plate 5 and the housing 1. This connection method facilitates subsequent disassembly, maintenance, and fine-tuning. A G-block 6 is fixedly connected to one side of the mounting plate 5, and the G-block 6 is fixedly connected, for example by welding or bolts, to the side of the mounting plate 5 facing the scrap guide chute 3. The design of the G-block 6 gives it a downward-opening "G"-shaped profile. Its inner contour fits tightly against the side of the disc shear housing 1, enhancing the rigidity and torsional resistance of the entire device and preventing it from shaking under stress. The G-block 6 has a hollow cavity inside, within which an extension rod 9 is detachably installed. The main body of the extension rod 9 is detachably inserted into the hollow cavity of the G-block 6. The lower end of the extension rod 9, near the disc shear 2 and the edge guide chute 3, is fixedly connected to the core protective component—the baffle 10. The baffle 10 is a critical functional component, positioned at the feed inlet of the edge guide chute 3, very close to the cutting point of the disc shear 2's blade. The orientation and height of the baffle 10 must ensure effective interception of debris splashing or bouncing from the cutting point, guiding or blocking it back into the edge guide chute 3. The baffle 10 is typically made of wear-resistant and impact-resistant materials such as high-strength steel plates.

[0020] Specifically, the cross-section of the G-block 6 is G-shaped. A threaded rod 7 is threadedly connected to the side of the G-block 6 away from the disc shear 2. A top block 8 is rotatably connected to the end of the threaded rod 7 located in the G-block 6. The top block 8 is slidably connected to the hollow part of the G-block 6 and is used to press against the extension rod 9.

[0021] Specifically, a row of limiting holes 11 are provided on the side of the extension rod 9, and a limiting block 13 that can be inserted into the limiting hole 11 is fixedly connected to the side of the top block 8 facing the extension rod 9, so as to facilitate the adjustment of the height of the baffle 10.

[0022] Operating procedure: Adjust the height of baffle 10:

[0023] Release: Rotate the threaded rod 7 counterclockwise to drive the top block 8 to slide away from the extension rod 9, so that the limiting block 13 is completely removed from the currently inserted limiting hole 11.

[0024] Adjustment: At this time, the extension rod 9 can slide freely up and down within the cavity of the G-block 6. The operator can raise or lower the extension rod 9 along with the baffle 10 to the required height based on actual production needs, such as changes in strip thickness and the shape of the broken edges. Ideally, the baffle 10 should be positioned so that its upper edge is slightly higher than the lip of the inlet of the broken edge guide chute 3, effectively covering the area where fragments are most likely to splash.

[0025] Locking: When the baffle 10 reaches the target height, ensure that a certain limiting hole 11 is aligned with the limiting block 13. Then rotate the threaded rod 7 clockwise, pushing the top block 8 and the limiting block 13 to slide towards the extension rod 9 until the limiting block 13 is firmly inserted into the limiting hole 11. At this time, the engagement of the limiting block 13 with the limiting hole 11 effectively prevents the extension rod 9 from moving up and down and rotating, while the continuous pressure of the top block 8 on the side of the extension rod 9 provides additional frictional fixation, preventing it from loosening under vibration. After the threaded rod 7 is tightened, the entire adjustment mechanism self-locks, ensuring that the baffle 10 remains in a stable position under high-speed shearing and fragment impact.

[0026] Brief description of the device's operation: The fragments generated by the disc shear 2 at the edge of the shear strip fall downwards into the fragment guide chute 3 under the influence of gravity, shearing force, and inertia. During this process, some fragments may have significant lateral velocity or bounce. The baffle 10, located at a critical position at the feed inlet of the guide chute, acts as a physical barrier, intercepting these fragments attempting to "jump." Fragments intercepted by the baffle 10 either fall directly into the guide chute or are bounced off the baffle 10 and their trajectory is altered before falling into the guide chute, effectively preventing fragments from flying out of the working area and ensuring the safety of operators and the cleanliness of the surrounding environment. The adjustable height of the baffle 10 allows the device to adapt to different working conditions, such as different thicknesses and strengths of steel strips, producing different fragment shapes, always maintaining optimal protection.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. The scope of patent protection of this utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of this utility model shall also be included within the scope of protection of this utility model.

Claims

1. A device for preventing scrap and jumping of disc shears in a cold rolling mill, comprising a disc shear and a scrap guide chute installed on the disc shear machine housing, characterized in that: A threaded column is fixedly connected to the disc shear housing, and a mounting plate is fixedly connected to the threaded column. A G-block is fixedly connected to one side of the mounting plate. The G-block fits into the disc shear housing. An extension rod is detachably installed in the G-block. A baffle is fixedly connected to the lower end of the extension rod. The baffle is located at the feed inlet of the edge guide chute and close to the blade of the disc shear.

2. The anti-fragmentation and skipping device for a cold rolling mill disc shear according to claim 1, characterized in that: A threaded rod is threadedly connected to the middle of the G-block, and a top block is rotatably connected to the end of the threaded rod located in the G-block. The top block is slidably connected to the hollow part of the G-block and is used to press against the extension rod.

3. The anti-fragmentation and skipping device for a cold rolling mill disc shear according to claim 2, characterized in that: A row of limiting holes is provided on the side of the extension rod, and a limiting block that can be inserted into the limiting hole is fixedly connected to the side of the top block facing the extension rod.

4. The anti-fragmentation and skipping device for a cold rolling mill disc shear according to claim 3, characterized in that: A nut is threaded onto the outer side of the threaded column, and the nut presses against the mounting plate, thereby temporarily fixing the mounting plate to the disc shear machine housing.

Images