Double shear device for cold rolling production line

Abstract

The utility model relates to a double -deck shearing device for cold rolling production line, including double -deck scissors and waste collecting mechanism, and waste collecting mechanism includes the first blanking channel of waste material export of upper passageway of double -deck scissors and the second blanking channel of waste material export of lower passageway of double -deck scissors, and the first blanking channel adopts the blanking channel of turning back, and the waste material export of first blanking channel and the waste material export of second blanking channel are all aligned in the waste material hopper online position of being located double -deck scissors directly below, the first blanking channel is designed as the blanking channel of turning back, realizes the optimal design to double -deck scissors upper and lower passageway blanking path, makes waste material hopper online position can be located double -deck scissors directly below, and equipment layout is more compact and reasonable, effectively saves the space required by waste material collection, is favorable to the design of cold rolling production line and saves investment, and the blanking channel of turning back design reduces the falling speed of waste material steel sheet, reduces impact and noise.

Description

Technical Field

[0001] This utility model belongs to the field of cold rolling production technology, specifically relating to a double-layer shearing device for a cold rolling production line. Background Technology

[0002] In the production of cold-rolled strip steel, double-layer shears are a highly efficient shearing device that can shear strip steel in two channels, significantly improving production efficiency. The shearing process inevitably generates waste, such as head and tail cuts, which need to be transported to the waste hopper.

[0003] Since both the upper and lower channels of a double-layer shear require material feeding, and the upper channel has a higher feeding position and a longer feeding channel, the scrap hopper is generally placed on the side of the double-layer shear to facilitate scrap collection from both channels. To ensure a constant supply of scrap hoppers, two hoppers are typically installed, one for use and one as a backup. When one hopper is full, it is moved to the offline position, and the other is moved to the online position and put into use. The offline position of the scrap hopper needs to be located on the side furthest from the double-layer shear from the online position to facilitate lifting. This results in a significant increase in floor space usage, which is detrimental to cold rolling production and hinders investment savings. Utility Model Content

[0004] This utility model relates to a double-layer shearing device for a cold rolling production line, which can at least solve some of the defects of the prior art.

[0005] This utility model relates to a double-layer shearing device for a cold rolling production line, comprising a double-layer shear and a waste collection mechanism. The waste collection mechanism includes a first feeding channel connected to the waste outlet of the upper channel of the double-layer shear and a second feeding channel connected to the waste outlet of the lower channel of the double-layer shear. The first feeding channel is a reversible feeding channel, and the waste outlets of both the first and second feeding channels are aligned with the waste hopper located directly below the double-layer shear.

[0006] As one embodiment, the first feeding channel includes an upper feeding channel and a lower feeding channel. The upper end of the upper feeding channel is connected to the waste outlet of the double-layer shear channel, and the upper end of the lower feeding channel is connected to the lower end of the upper feeding channel. The lower end of the lower feeding channel is aligned with the waste hopper at the online position. Both the upper feeding channel and the lower feeding channel are inclined feeding channels, and the waste flows in opposite directions.

[0007] As one implementation method, both the upper-level feeding channel and the lower-level feeding channel adopt feeding chutes.

[0008] As one implementation method, a baffle plate is provided at the junction of the upper-level feeding channel and the lower-level feeding channel to block material and change the downward direction of waste material.

[0009] As one implementation method, the lower-level feeding channel is arranged horizontally adjacent to the second feeding channel.

[0010] As one implementation method, the second feeding channel is a feeding chute.

[0011] As one embodiment, the waste collection mechanism further includes a trolley track, two waste trolleys movably mounted on the trolley track, and a trolley drive unit for driving the waste trolleys to move along the trolley track. The trolley track extends from the waste hopper at the online position to the waste hopper at the offline position. The two waste trolleys are connected in series and each has a waste hopper detachably mounted on its body.

[0012] As one implementation method, the trolley track extends from the waste hopper online position to the unit drive side and the unit operation side respectively, forming two waste hopper offline positions.

[0013] As one implementation method, the two waste carts are connected by a connector, which is detachably connected to each of the two waste carts.

[0014] This utility model has at least the following beneficial effects:

[0015] In this invention, the first feeding channel for the upper channel of the double-layer shear is designed as a reversible feeding channel. This optimizes the feeding path of the upper and lower channels of the double-layer shear, allowing the scrap hopper to be positioned directly below the double-layer shear. This utilizes the area directly below the double-layer shear for the scrap hopper, resulting in a more compact and rational equipment layout. It effectively saves space required for scrap collection, facilitating the design of cold rolling production lines and reducing investment. Furthermore, the reversible feeding channel design effectively reduces the falling speed of scrap steel plates, minimizing impact and noise, and providing strong assurance for safe production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 and Figure 2 These are schematic diagrams showing two states of the double-layer shearing device provided in this embodiment of the utility model. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 and Figure 2 This utility model provides a double-layer shearing device for a cold rolling production line, including a double-layer shear. The double-layer shear is equipped with a waste collection mechanism. The waste collection mechanism includes a first feeding channel 1 connected to the waste outlet of the upper channel of the double-layer shear and a second feeding channel 2 connected to the waste outlet of the lower channel of the double-layer shear. The first feeding channel 1 is a folding feeding channel, and the waste outlets of the first feeding channel 1 and the second feeding channel 2 are both aligned with the waste hopper located directly below the double-layer shear.

[0020] Preferably, the above-mentioned reversible feeding channel adopts a two-stage reversible structure, specifically, as follows: Figure 1 and Figure 2 The first feeding channel 1 includes an upper feeding channel 11 and a lower feeding channel 12. The upper end of the upper feeding channel 11 is connected to the waste outlet of the double-layer shear channel. The upper end of the lower feeding channel 12 is connected to the lower end of the upper feeding channel 11. The lower end of the lower feeding channel 12 is aligned with the waste hopper at the online position. Both the upper feeding channel 11 and the lower feeding channel 12 are inclined feeding channels and the waste flows in opposite directions.

[0021] The upper end of the upper feeding channel 11 can be connected to the waste outlet of the double-layer shear channel through a flange connection or other means; the lower end of the lower feeding channel 12 is aligned with the online position of the waste hopper to ensure that the scrap steel plate can slide into the online waste hopper 32. For example, the lower end of the lower feeding channel 12 can be located directly below or diagonally above the online waste hopper 32.

[0022] Both the upper-level feeding channel 11 and the lower-level feeding channel 12 are arranged at an angle, and their inclination directions are opposite, which can form a better waste material guiding path. In one embodiment, the upper-level feeding channel 11 is inclined downward at an angle of 30° to 45°, and the lower-level feeding channel 12 is inclined downward at an angle of 40° to 50°, which can allow the waste material to smoothly turn and slide down.

[0023] Preferably, both the upper-level feeding channel 11 and the lower-level feeding channel 12 are feeding chutes. The feeding chutes can be made of high-strength wear-resistant steel plates, and the inner surface can be polished or lined with wear-resistant plates to reduce the coefficient of friction and extend the service life.

[0024] Furthermore, a baffle plate 13 is provided at the junction of the upper-level feeding channel 11 and the lower-level feeding channel 12 to block material and change the downward direction of the waste material; wherein, the baffle plate 13 can be designed to be detachably installed on the lower-level feeding channel 12 for easy replacement and maintenance; optionally, the installation angle of the baffle plate 13 is adjustable to meet the material blocking requirements of different working conditions (e.g., different specifications of scrap steel plates); optionally, in the height direction, the baffle plate 13 adopts an arc-shaped curved surface design to effectively guide the waste material to change its movement direction, while reducing the impact on the equipment.

[0025] In one embodiment, such as Figure 1 and Figure 2 The lower-level feeding channel 12 is arranged horizontally adjacent to the second feeding channel 2, which improves the structural compactness of the double-layer shearing device and further reduces the space occupied by the equipment.

[0026] In one embodiment, the second feeding channel 2 is a feeding chute, which can be made of high-strength wear-resistant steel plate, with the inner surface polished or lined with wear-resistant plates to reduce the coefficient of friction and extend its service life. Optionally, the inclination angle of the second feeding channel 2 is designed to be 45~60° to ensure reliable connection between it and the online waste hopper 32, while ensuring that the waste steel plate has a high downward sliding speed.

[0027] In this embodiment, the first feeding channel 1 used for unloading material from the upper channel of the double-layer shear is designed as a reversible feeding channel. This optimizes the feeding path of the upper and lower channels of the double-layer shear, allowing the scrap hopper to be positioned directly below the double-layer shear. This enables the scrap hopper 32 to be placed in the area directly below the double-layer shear, resulting in a more compact and rational equipment layout. It effectively saves space required for scrap collection, facilitating the design of the cold rolling production line and reducing investment. Furthermore, the reversible feeding channel design effectively reduces the falling speed of the scrap steel plates, minimizing impact and noise, and providing strong protection for safe production.

[0028] Further optimize the above-mentioned double-layer shearing device, such as Figure 1 and Figure 2The waste collection mechanism further includes a trolley track 41, two waste trolleys 3 movably mounted on the trolley track 41, and a trolley drive unit 42 for driving the waste trolleys 3 to move along the trolley track 41. The trolley track 41 extends from the waste hopper at the online position to the waste hopper at the offline position. The two waste trolleys 3 are connected in series and each has a waste hopper 32 detachably mounted on its body 31. Preferably, the trolley track 41 extends from the waste hopper at the online position to both sides to facilitate the switching of the two waste trolleys 3; further, as... Figure 1 and Figure 2 The trolley track 41 extends from the waste hopper's online position to the unit drive side and the unit operation side, respectively, forming two waste hopper offline positions. In this embodiment, the use of a dual waste trolley 3 series design and a bidirectional track layout enables non-stop waste transfer, avoiding production interruptions caused by waste collection; the waste hopper 32 can be hoisted from both the unit drive side and the unit operation side, greatly improving the flexibility and reliability of waste collection operations.

[0029] Preferably, the two waste carts 3 are connected by a connector 33, which is detachably connected to each of the two waste carts 3. This allows the two waste carts 3 to be connected in series as a whole, or to be disconnected, further improving the flexibility of waste collection operations. The connector 33 may include, but is not limited to, a linkage, and can adopt a pin-type or hook-type quick-connect structure, ensuring reliable connection and easy disassembly. Furthermore, the linkage can be designed as a telescopic linkage, which not only allows for flexible adjustment of the distance between the two waste carts 3 (locking after telescopic adjustment), but also allows for adaptive spacing between the two waste carts 3 (not locking between telescopic joints), improving the reliability of waste collection operations.

[0030] In one embodiment, the aforementioned trolley drive unit 42 employs a gear motor + chain drive. When a gear motor capable of forward and reverse rotation is used, bidirectional movement of the waste trolley 3 can be achieved. Alternatively, gear motors can be installed at the offline positions of the two waste hoppers. Of course, it is not limited to the aforementioned gear motor + chain drive method; methods such as cylinder / hydraulic cylinder + connecting rod drive are also applicable to this embodiment.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer shearing device for a cold rolling production line, comprising a double-layer shear, wherein the double-layer shear is equipped with a waste collection mechanism, characterized in that, The waste collection mechanism includes a first discharge channel connected to the waste outlet of the double-layer shear upper channel and a second discharge channel connected to the waste outlet of the double-layer shear lower channel. The first discharge channel is a reversible discharge channel, and the waste outlets of the first discharge channel and the second discharge channel are both aligned with the waste hopper located directly below the double-layer shear.

2. The double-layer shearing device as described in claim 1, characterized in that: The first feeding channel includes an upper feeding channel and a lower feeding channel. The upper end of the upper feeding channel is connected to the waste outlet of the double-layer shear channel, and the upper end of the lower feeding channel is connected to the lower end of the upper feeding channel. The lower end of the lower feeding channel is aligned with the waste hopper at the online position. Both the upper feeding channel and the lower feeding channel are inclined feeding channels, and the waste flows in opposite directions.

3. The double-layer shearing device as described in claim 2, characterized in that: Both the upper-level and lower-level feeding channels are feeding chutes.

4. The double-layer shearing device as described in claim 2, characterized in that: A baffle plate is provided at the junction of the upper-level feeding channel and the lower-level feeding channel to block material and change the downward direction of waste material.

5. The double-layer shearing device as described in claim 2, characterized in that: The lower-level feeding channel is arranged horizontally adjacent to the second feeding channel.

6. The double-layer shearing device as described in claim 1, characterized in that: The second feeding channel adopts a feeding chute.

7. The double-layer shearing device according to any one of claims 1 to 6, characterized in that: The waste collection mechanism also includes a trolley track, two waste trolleys movably mounted on the trolley track, and a trolley drive unit for driving the waste trolleys to move along the trolley track. The trolley track extends from the waste hopper at the online position to the waste hopper at the offline position. The two waste trolleys are connected in series and each has a waste hopper that can be detachably mounted on its body.

8. The double-layer shearing device as described in claim 7, characterized in that: The trolley track extends from the waste hopper's online position to the unit's drive side and the unit's operating side, respectively, forming two waste hopper offline positions.

9. The double-layer shearing device as described in claim 7, characterized in that: The two waste carts are connected by a connector, which is detachably connected to each of the two waste carts.

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