Device for quickly solving scratches on upper surface of strip in longitudinal shearing process

Abstract

The utility model belongs to the field of strip longitudinal shearing, and particularly relates to a device for quickly solving the problem that the upper surface of a strip is scratched in the longitudinal shearing process. The technical problem that an existing slitting machine tension mechanism easily scratches the upper surface of a strip is solved. A device for rapidly solving scratches on the upper surface of a strip in the longitudinal shearing process comprises a base, and an air bag is fixed to the upper surface of the base. The top seat is buckled with the base; an air bag corresponding to the air bag of the base is also fixed on the lower surface of the top seat; after the top seat and the base are buckled, a gap for a strip to penetrate through is reserved between the top seat and the base. The base and the top seat are connected through a U-shaped buckle, a clamping plate and a clamping plate and the U-shaped buckle. The upper half portion of an original tension mechanism is improved and transformed into the top seat similar to the base in structure, the air bag is additionally arranged, the technical problem that the upper surface of a strip is prone to being scratched is effectively solved, and the tension mechanism is simple in structure, quite convenient to install, quite low in improvement cost and suitable for being popularized in the industry.

Description

Technical Field

[0001] The utility model belongs to the field of strip longitudinal shearing, in particular to a device for quickly solving the problem of scratches on the upper surface of the strip during the longitudinal shearing process. Background Art

[0002] For a long time, through the collection and analysis of the quality problems of copper strip products, it was found that more than 60% of the quality problems were caused by scratches, which caused quality complaints and returns. It caused great quality losses to the company. Surface scratches have become the main cause of quality losses, so reducing scratches has become the greatest economic benefit.

[0003] Specifically, when the copper strip is longitudinally sheared, a tension machine is required to provide tension to the strip, and the strip enters the longitudinal shearing machine behind to complete the longitudinal shearing. The existing tension machine is equipped with an airbag, such as the airbag tension machine of Chinese Patent 201120308819.6, which discloses a plate tension machine used in the longitudinal shearing production line to solve the problem that the traditional tension machine is prone to uneven tension when pressing wider strips. It includes a bracket and a base, and the upper end of the base is also provided with a groove, and a block is fixed in the middle of the groove along the axial direction. The block divides the groove into two chambers, and an airbag is placed in each chamber. The two ends of the airbag are fixed on the bracket, and one end of the airbag is sealed and the other end is provided with an air inlet hole; the support beam is located on the upper part of the airbag, and is fixed to the base through the slide grooves on both sides. The support beam is composed of a plurality of strip blocks placed side by side along the axial direction of the airbag.

[0004] Chinese patent 200920123885.9 is a double air bag clamping mechanism of the tension mechanism of the longitudinal shearing machine, which mainly includes a frame, a cylinder is arranged on the frame, a pressure beam is connected under the cylinder, a lower beam is arranged on the frame at a position corresponding to the lower part of the pressure beam, a pressure block is connected to the lower part of the pressure beam, and an air bag is arranged in the space between the pressure block and the pressure beam. The pressure is transmitted by the air bag, and the pressure can be automatically adjusted according to the thickness of the strip material to achieve the purpose of averaging the pressure on each strip material.

[0005] In both of the above patent documents, an airbag is arranged at the bottom of the tension mechanism. When the strip passes through the tension mechanism, the bottom of the strip is protected by the airbag and will not be scratched, but the top of the strip is often scratched by the pressure block or upper pressure beam at the top of the tension mechanism, which cannot solve the above-mentioned problem. Utility Model Content

[0006] The utility model aims to solve the technical problem that the tension mechanism of the existing slitting machine easily scratches the upper surface of the strip and provides a device for quickly solving the problem of scratching the upper surface of the strip during the slitting process.

[0007] The utility model is realized by adopting the following technical scheme: a device for quickly solving the problem of scratches on the upper surface of a strip during longitudinal shearing, comprising a base, an airbag is fixed on the upper surface of the base; further comprising a top seat buckled with the base, an airbag corresponding to the airbag on the base is also fixed on the lower surface of the top seat; after the top seat and the base are buckled, a gap is left between the two for the strip to pass through.

[0008] In order to solve the problem of scratches on the upper surface of the strip during the cutting process, the inventor found that there was an iron plate above the original airbag, which was relatively hard compared to the lower surface. When the strip passed through the iron plate and the airbag, scratches were caused on the upper surface of the strip. Therefore, the iron plate on the upper surface was replaced with a less hard material, that is, the upper iron plate was also replaced with a top seat with a structure basically the same as the base. At the same time, an airbag was also provided on the lower surface of the top seat. The upper and lower surfaces of the strip are buffered and provide tension through the airbag, which effectively solved the technical problem that the surface of the strip, especially the upper surface, is easily scratched.

[0009] Furthermore, the base is a rectangular box or frame structure, a cushion block is fixed inside the box or frame, and an airbag is fixed above the cushion block; the top seat is also a rectangular box or frame structure, with an opening facing downward, a cushion block is fixed inside, and the airbag is fixed through the lower surface of the cushion block. U-shaped buckles are fixed on the two short sides of the base, and a clamping plate that cooperates with the U-shaped buckle is fixed on the two short sides of the top seat, and the clamping plate and the U-shaped buckle are connected by bolts.

[0010] The U-shaped buckle and the card plate are located on both sides of the box or frame. After the two are connected, a gap can be left between the top seat and the base (in the direction of strip travel) for the strip to pass through; the height of the airbag can be adjusted by adjusting the air pressure to adapt to the processing of strips of different specifications.

[0011] The utility model improves the upper part of the original tension mechanism, transforms it into a top seat similar to the base structure, and adds an airbag, which effectively solves the technical problem that the upper surface of the strip is easily scratched. The above-mentioned improved structure is simple, which is equivalent to quickly and conveniently solving the technical problems mentioned in the background technology on the basis of the original device. It is also very convenient to install and disassemble, and the cost of transformation is also very low, which is suitable for promotion within the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the base structure of the present invention.

[0013] Figure 2 A schematic diagram of the top seat structure of the utility model (the pressing plate is not shown in the figure).

[0014] Figure 3 A schematic diagram of the structure of the utility model when it is specifically applied.

[0015] 1-base, 2-top seat, 3-airbag, 4-U-shaped buckle, 5-clip plate, 6-pressing plate, 7-strip, 8-slitting machine. DETAILED DESCRIPTION

[0016] Embodiment 1 A device for quickly solving the problem of scratches on the upper surface of a strip during longitudinal shearing is composed of a base 1 and a top seat 2 that are interlocked with each other. An airbag 3 is fixed to the upper surface of the base, and an airbag 3 corresponding to the base airbag is also fixed to the lower surface of the top seat 2; after the top seat 2 and the base 1 are interlocked, a gap is left between the two for the strip 7 to pass through. The base 1 is a rectangular box or frame structure, a cushion block is fixed inside the box or frame, and an airbag 3 is fixed above the cushion block; the top seat 2 is also a rectangular box or frame structure, with an opening facing downward, a cushion block is fixed inside, and an airbag 3 is fixed through the lower surface of the cushion block.

[0017] like Figure 1 and 2 They are schematic diagrams of the base and top seat respectively. The two have similar structures and the arrangement of the airbags is also similar.

[0018] Embodiment 2 U-shaped buckles 4 are fixed on the two short sides of the base 1 , and clamping plates 5 cooperating with the U-shaped buckles 4 are fixed on the two short sides of the top seat 2 . The clamping plates 5 and the U-shaped buckles 4 are connected by bolts.

[0019] The pallet is inserted into the U-shaped buckle, and then the two are connected by bolts, leaving a certain gap for the strip to pass through.

[0020] Example 3 Figure 1 , 2 As shown, the airbags 3 on the base 1 and the top seat 2 are a pair and are symmetrically arranged with the long center lines of the base 1 and the top seat 2 as the center line; the airbags 3 are cylindrical airbags with a rectangular cross-section, and the short sides of the rectangle are parallel to the direction of the strip 7.

[0021] Example 4 Figure 1 As shown, the two ends of the short side of the airbag 3 are fixed to the pad by a pressure plate 6 and bolts ( Figure 2 not shown).

[0022] like Figure 3 As shown, after the top seat and the base of the utility model are buckled, the airbag provides tension for the strip, and after the strip passes through the gap between the top seat and the base, it enters the slitting machine to complete the cutting; the strip passes under the clamping of the upper and lower airbags, and the airbags on the top seat and the base provide protection for the strip. The tension of the strip can be adjusted by adjusting the airbag pressure.

[0023] The existing tension mechanism is composed of two parts, the lower part is composed of a rectangular frame (length 1000*width 300*height 150mm) without a cover; two cylindrical airbags are placed in the middle of the rectangular frame; the upper surface is composed of an iron plate of the same size.

[0024] The improved utility model is composed of two rectangular blocks, and the original iron block on the upper surface is replaced by a top seat similar to the rectangular block structure below, which is also provided with an air bag, so that the upper and lower surfaces of the strip can be effectively protected and the surface quality can be improved.

Claims

1. A device for quickly solving the problem of scratches on the upper surface of a strip during longitudinal shearing, comprising a base (1), an air bag (3) being fixed on the upper surface of the base, characterized in that: It also includes a top seat (2) that is buckled with the base (1), and an air bag (3) corresponding to the air bag (3) on the base (1) is fixed to the lower surface of the top seat (2); after the top seat (2) and the base (1) are buckled, a gap is left between the two for the strip (7) to pass through.

2. A device for quickly solving the scratches on the upper surface of the strip during the longitudinal shearing process as claimed in claim 1, characterized in that: The base (1) is a rectangular box or frame structure, a cushion block is fixed inside the box or frame, and an air bag (3) is fixed above the cushion block; the top seat (2) is also a rectangular box or frame structure, with an opening facing downward, a cushion block is fixed inside, and the air bag (3) is fixed through the lower surface of the cushion block.

3. A device for quickly solving the scratches on the upper surface of the strip during the longitudinal shearing process as claimed in claim 2, characterized in that: U-shaped buckles (4) are fixed on the two short sides of the base (1), and clamping plates (5) cooperating with the U-shaped buckles (4) are fixed on the two short sides of the top seat (2), and the clamping plates (5) and the U-shaped buckles (4) are connected by bolts.

4. A device for quickly solving the scratches on the upper surface of the strip during the longitudinal shearing process as claimed in claim 3, characterized in that: The air bags (3) on the base (1) and the top seat (2) are a pair and are symmetrically arranged with the long center lines of the base (1) and the top seat (2) as the center line.

5. A device for quickly solving the scratches on the upper surface of the strip during the longitudinal shearing process as claimed in claim 4, characterized in that: The airbag (3) is a cylindrical airbag with a rectangular cross-section, and the short side of the rectangle is parallel to the direction of the strip (7).

6. A device for quickly solving the scratches on the upper surface of the strip during the longitudinal shearing process as claimed in claim 4 or 5, characterized in that: The two ends of the short side of the air bag (3) are fixed to the cushion block through a pressure plate (6) and bolts.

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