Metal strip cutting system

Abstract

The utility model provides a metal strip cutting system. The metal strip cutting system comprises an unwinding device, a cutting tool, a winding device, a supporting table and a roll shaft set frame. The cutting tool is located in front of the unwinding device in the conveying direction of the metal strip. The winding device is located in front of the cutting tool in the conveying direction of the narrow band, and when the metal strip is cut through the metal strip cutting system, a deep well is formed between the cutting tool and the winding device; the supporting table is located in front of the cutting tool in the conveying direction of the narrow belt, when the metal belt is cut through the metal belt cutting system, the supporting table is located between the deep well and the cutting tool, and the side, close to the narrow belt, of the supporting table forms an arc-shaped supporting face; the roller shaft set frame is arranged on the supporting table, and a plurality of supporting rollers are arranged on the roller shaft set frame. According to the metal strip cutting system, relative sliding between the narrow strips and the contact faces of the narrow strips is reduced, the narrow strips are prevented from being scratched by dust particles on the contact faces, and the rejection rate of the narrow strips is reduced.

Description

Technical Field

[0001] This application relates to the technical field of metal strip cutting, and specifically relates to a metal strip cutting system. Background Art

[0002] In related technologies, a relatively smooth guiding surface made of metal is usually provided at the cutting outlet of a metal strip cutting system to transfer the narrow strips obtained by cutting to the next process. However, during actual production, dust particles will accumulate on the guiding surface. When the narrow strips continuously slide forward on the guiding surface, the surface of the narrow strips is often scratched and damaged due to the dust particles. For metal materials with relatively soft materials or special electroplating treatments on the surface, uncontrollable surface quality problems will directly cause the scrapping of the materials. Summary of the Utility Model

[0003] To at least partially solve the above problems, an embodiment of this application provides a metal strip cutting system for longitudinally cutting a metal strip into multiple narrow strips with widths smaller than that of the metal strip. The metal strip cutting system includes an unwinding device, a cutting tool, a winding device, a support table, and a roller group frame. The unwinding device is used to support and release the mother roll formed by winding the metal strip and flatten the metal strip. The cutting tool is located in front of the unwinding device along the transmission direction of the metal strip. The cutting tool is used to receive the metal strip from the unwinding device and longitudinally cut the metal strip into multiple narrow strips. The winding device is located in front of the cutting tool along the transmission direction of the narrow strip. The winding device is used to receive the narrow strip and wind the narrow strip on the winding device. When the metal strip is cut by the metal strip cutting system, a deep well is provided between the cutting tool and the winding device. The deep well is lower than the cutting tool and the winding device. The narrow strip formed by cutting with the cutting tool first moves downward to the bottom of the deep well, then turns back upward from the bottom of the deep well and leaves the deep well, and then is wound by the winding device. The support table is located in front of the cutting tool along the transmission direction of the narrow strip. When the metal strip is cut by the metal strip cutting system, the support table is located between the deep well and the cutting tool. An arc-shaped support surface is formed on the side of the support table close to the narrow strip to enable the narrow strip to smoothly transition into the deep well through the arc-shaped support surface. The roller group frame is arranged on the support table. The support table supports the narrow strip through the roller group frame. A plurality of support rollers are arranged on the roller group frame. The length of the support rollers is greater than the width of the metal strip. The axes of the plurality of support rollers are arranged along the circumferential direction of the arc-shaped support surface. The extending direction of the axis of each support roller is parallel to the arc-shaped support surface and perpendicular to the transmission direction of the narrow strip. When the support table supports the narrow strip through the roller group frame, the support rollers are in contact with the narrow strip.

[0004] In some embodiments, the roller set frame includes a base and multiple bearing seats. The base is disposed on the support table; the bearing seats are disposed on the base, and the multiple bearing seats are arranged circumferentially along the circumferential direction of the arc-shaped support surface. The number of bearing seats is the same as the number of support rollers, and both ends of each support roller are rotatably connected to a set of bearing seats.

[0005] In some embodiments, the base is in an arched shape that fits the arc-shaped support surface.

[0006] In some embodiments, the base is a rectangular frame structure. One pair of opposite sides of the base is bent to form an arch, and the other pair of opposite sides of the base is straight. The bearing seats are disposed on the opposite sides of the arch of the base.

[0007] In some embodiments, multiple reinforcing members are further disposed between the opposite sides of the arch of the base. Both ends of the reinforcing member are respectively connected to the opposite sides of the arch, and the reinforcing member is located within the curved surface where the opposite sides of the arch are located.

[0008] In some embodiments, hanging ears are respectively disposed on the opposite sides of the arch of the base, and the hanging ears limit the movement of the base along the circumferential direction of the support table.

[0009] In some embodiments, the support table is formed by splicing multiple arc-shaped metal plates. The two sides of adjacent two metal plates are respectively hinged through hinges, and the hinges protrude from the edges on both sides of the metal plates; the end of the hanging ear forms a V-shaped groove, and the hanging ear is clamped with the hinge through the V-shaped groove.

[0010] In some embodiments, through holes are respectively formed on both sides of the bearing seat, and each bearing seat is connected to the base through a bolt passing through the through hole. Among them, one or more gaskets are also sleeved on the bolt of each through hole, and the gaskets are located between the bearing seat and the base.

[0011] In some embodiments, the roller set frame further includes a spacing adjustment mechanism. The bearing seat is disposed on the base through the spacing adjustment mechanism, and the height adjustment mechanism is configured to adjust the spacing between the bearing seat and the base.

[0012] In some embodiments, the surface of the support roller is made of rubber material.

[0013] In the metal strip cutting system provided by the embodiments of the present application, through the roller set frame disposed on the support table, the narrow strip formed after the metal strip is slit can enter the deep well under the support of the support rollers. The support rollers can rotate along with the movement of the narrow strip, thereby reducing the relative sliding between the narrow strip and its contact surface, preventing the narrow strip from being scratched by dust particles on the contact surface, and reducing the rejection rate of the narrow strip. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram when the metal strip cutting system provided by the embodiment of the present application cuts the metal strip;

[0016] Figure 2 It is a schematic structural diagram of the roll shaft group frame provided by the embodiment of the present application;

[0017] Figure 3 It is a side view of the roll shaft group frame provided by the embodiment of the present application;

[0018] Figure 4 It is a top view of the roll shaft group frame provided by the embodiment of the present application.

[0019] The reference numerals are as follows:

[0020] 10, support roll; 20, base; 30, bearing block; 40, strengthening member; 100, roll shaft group frame; 200, unwinding device; 300, cutting tool; 400, support table; 500, winding device; 600, deep well; 700, metal strip; 800, narrow strip.

[0021] It should be understood that the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. Detailed Embodiments

[0022] The following will clearly and completely describe the technical solutions of the preferred embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0023] The "first", "second" and similar terms used in the present application do not indicate any order, quantity or importance, but are only used to distinguish different parts. The terms such as "including" or "comprising" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements. The terms such as "upper", "lower", "left", "right" are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0024] Embodiments of the present application provide a metal strip cutting system, which is used to longitudinally slit a metal strip into multiple narrow strips with widths smaller than that of the metal strip. Exemplarily, the metal strip can be a copper strip, such as a copper strip with a special surface treatment, etc. The metal strip cutting system can slit the metal strip into multiple narrow strips to facilitate subsequent processing and application of the material.

[0025] As Figure 1 shown, the metal strip cutting system includes an unwinding device 200, a cutting tool 300, a winding device 500, a support table 400, and a roller shaft group frame 100. The unwinding device 200 is used to support and release the master roll formed by winding the metal strip 700, and flatten the metal strip 700. During production, the metal strip 700 to be cut is usually wound into a master roll and installed on the unwinding device 200, and then the coiled metal strip 700 is unfolded by applying force to the free end of the metal strip 700. The unwinding device 200 can also be provided with flattening rollers, and the flattening rollers tension and squeeze the metal strip 700 to flatten the metal strip 700 for subsequent cutting. The cutting tool 300 is located in front of the unwinding device 200 along the transmission direction of the metal strip 700. The cutting tool 300 is used to receive the metal strip 700 from the unwinding device 200 and longitudinally slit the metal strip 700 into multiple narrow strips 800. The cutting tool 300 can include two cutting shafts arranged vertically. The circumferential cutting parts are arranged along the circumferential direction of the cutting shaft. The number of circumferential cutting parts on each cutting shaft can be multiple, and the multiple circumferential cutting parts are distributed along the axial direction of the cutting shaft. Through the shearing and squeezing actions of the two upper and lower cutting shafts, the slitting of the metal strip 700 is realized. After the metal strip 700 released by the unwinding device 200 is flattened, it reaches the cutting tool 300 along the transmission direction of the metal strip 700 and enters the gap between the two upper and lower cutting rollers, and is slit into multiple narrow strips 800. The winding device 500 is located in front of the cutting tool 300 along the transmission direction of the narrow strip 800. The winding device 500 is used to receive the narrow strip 800 and wind the narrow strip 800 on the winding device 500, and the winding device 500 can realize the storage of the narrow strip 800.

[0026] When the metal strip 700 is cut by a metal strip cutting system, a deep well 600 is arranged between the cutting tool 300 and the winding device 500. The deep well 600 is lower than the cutting tool 300 and the winding device 500. The narrow strip 800 formed by the cutting of the cutting tool 300 first moves downward to the bottom of the deep well 600, then turns back upward from the bottom of the deep well 600 to leave the deep well 600, and then is wound by the winding device 500. When the metal strip 700 is cut, the narrow strip 800 can eliminate the residual surface stress after passing through the deep well 600. The support table 400 is located in front of the cutting tool 300 along the transmission direction of the narrow strip 800. When the metal strip 700 is cut by the metal strip cutting system, the support table 400 is located between the deep well 600 and the cutting tool 300. An arc-shaped support surface is formed on the side of the support table 400 close to the narrow strip 800, so that the narrow strip 800 can smoothly enter the deep well 600 through the arc-shaped support surface. The narrow strip 800 formed by slitting can smoothly enter the deep well 600 under the guidance of the arc-shaped support surface to prevent irreversible bending of the narrow strip 800.

[0027] The roller shaft group frame 100 is arranged on the support table 400. The support table 400 supports the narrow strip 800 through the roller shaft group frame 100. A plurality of support rollers 10 are arranged on the roller shaft group frame 100. A plurality of narrow strips 800 are distributed along the axial direction of the support rollers 10 on the support rollers 10. The length of the support rollers 10 is greater than the width of the metal strip 700, so that a single support roller 10 can support all the narrow strips 800 obtained by slitting at the same time. The axes of the plurality of support rollers 10 are arranged along the circumferential direction of the arc-shaped support surface, so that the narrow strip 800 can obtain multi-point support when moving along the circumferential direction of the arc-shaped support surface. The extending direction of the axis of each support roller 10 is parallel to the arc-shaped support surface and perpendicular to the transmission direction of the narrow strip 800. That is to say, the axis of the support roller 10 is parallel to the axis of the cylinder where the arc-shaped support surface is located. When the narrow strip 800 moves, the moving direction of the narrow strip 800 is perpendicular to the axis of the support roller 10. The above setting method can make the relative sliding between the narrow strip 800 and the support roller 10 as small as possible when the narrow strip 800 moves on the support roller 10. When the support table 400 supports the narrow strip 800 through the roller shaft group frame 100, the support roller 10 is in contact with the narrow strip 800.

[0028] The metal strip cutting system provided by the embodiment of the present application enables the narrow strip 800 formed after the metal strip 700 is slit to enter the deep well 600 under the support of the support rollers 10 through the roller shaft group frame 100 arranged on the support table 400. The support rollers 10 can rotate with the movement of the narrow strip 800, thereby reducing the relative sliding between the narrow strip 800 and its contact surface, preventing the narrow strip 800 from being scratched by dust particles on the contact surface, and reducing the rejection rate of the narrow strip 800.

[0029] AsFigure 2 As shown in the figure, in some embodiments, the roller set frame 100 includes a base 20 and multiple groups of bearing seats 30. The base 20 is disposed on the support table 400; the bearing seats 30 are disposed on the base 20, and multiple groups of bearing seats 30 are arranged along the circumferential direction of the arc-shaped support surface. The number of groups of bearing seats 30 is the same as the number of support rollers 10. Each group of bearing seats 30 may include two bearing seats 30, and both ends of each support roller 10 are rotatably connected to a group of bearing seats 30. The two bearing seats 30 in each group of bearing seats 30 are symmetrically installed on both sides of the base 20. Exemplarily, the distance between groups may be 140 mm, and the diameter of the bearing seats 30 may all be 15 mm, ensuring that the support rollers 10 installed on the bearing seats 30 can rotate stably. In this embodiment, the roller set frame 100 with the above structure is simple in structure and easy to process. In some embodiments, the surface of the support roller 10 is made of rubber material, and the rubber material has a larger friction coefficient, which can further prevent the relative sliding between the support roller 10 and the narrow belt 800.

[0030] As Figure 3 shown in the figure, in some embodiments, the shape of the base 20 is an arch that fits the arc-shaped support surface. This setting method can make the assembly of the base 20 and the arc-shaped support surface more compact, ensure the stable and smooth transmission of the narrow belt 800, and is also beneficial to the fitting of the support roller 10 and the narrow belt 800.

[0031] As Figure 4 shown in the figure, in some embodiments, the base 20 is a rectangular frame structure. One pair of opposite sides of the base 20 is bent to form an arch to achieve complete fitting with the arc-shaped support surface, and the other pair of opposite sides of the base 20 is straight. The bearing seats 30 are disposed on the opposite sides of the arch of the base 20. Exemplarily, the base 20 may be a rectangular frame structure of 660 mm * 531 mm, and the base 20 can be formed by welding light flat iron with a width of 30 mm * a thickness of 10 mm.

[0032] In some embodiments, multiple reinforcing members 40 are further disposed between the opposite sides of the arch of the base 20. Both ends of the reinforcing member 40 are respectively connected to the opposite sides of the arch, and the reinforcing member 40 is located within the curved surface where the opposite sides of the arch are located to ensure the structural stability of the base 20 and avoid the interference of the reinforcing member 40 with the conveyance of the narrow belt 800. Exemplarily, two reinforcing members 40 made of flat iron with a width of 30 mm * a thickness of 5 mm can be welded in the width direction within the base 20 frame to ensure the structural stability.

[0033] In some embodiments, lugs are respectively arranged on the opposite arched sides of the base 20, and the lugs limit the movement of the base 20 along the circumferential direction of the support table 400. In this embodiment, when the base 20 is placed on the arc-shaped support surface, the base 20 may slide along the circumferential direction of the arc-shaped support surface under the action of gravity. Therefore, by arranging the lugs, the sliding of the base 20 along the circumferential direction of the arc-shaped support surface is limited to ensure the stable support of the roller shaft group frame 100 for the narrow band 800. In other embodiments, the base 20 can also be relatively fixed to the arc-shaped support surface by means of friction or connection member limitation, etc.

[0034] In some embodiments, the support table 400 is formed by splicing multiple arc-shaped metal plates, and the two sides of adjacent two metal plates are respectively hinged by hinges, and the hinges protrude from the edges on both sides of the metal plates; the end of the lug forms a V-shaped groove, and the lug is clamped with the hinge through the V-shaped groove. It can be understood that when limiting the sliding of the base 20 along the circumferential direction of the arc-shaped support surface, it is mainly to limit the sliding tendency generated by the gravity of the base 20. Therefore, in this embodiment, by opening a V-shaped groove on the lug, the base 20 is limited in the circumferential direction in a single direction, with a simple structure and at the same time facilitating the installation and disassembly of the roller shaft assembly on the support table 400.

[0035] In some embodiments, through holes are respectively opened on both sides of the bearing seat 30, and each bearing seat 30 is connected to the base 20 by bolts passing through the through holes. Among them, one or more gaskets are also arranged on the bolts of each through hole, and the gaskets are located between the bearing seat 30 and the base 20. It can be understood that since the narrow band 800 is completely attached to the support roller 10 during the transmission process to ensure uniform force, reduce resistance and achieve smooth transmission. Therefore, in this embodiment, the height and inclination angle of the bearing seat 30 on the base 20 can be adjusted by adjusting the number of gaskets, so as to ensure that each support roller 10 is attached to the narrow band 800. Specifically, the height of the bearing seat 30 can be adjusted by simultaneously increasing or decreasing the same number of gaskets on the bolts on both sides of the bearing seat 30, and the inclination angle of the bearing seat 30 can be adjusted by increasing or decreasing different numbers of gaskets on the bolts on both sides of the bearing seat 30. Of course, in other embodiments, the roller shaft group frame 100 further includes a spacing adjustment mechanism, and the bearing seat 30 is arranged on the base 20 through the spacing adjustment mechanism, and the height adjustment mechanism is configured to adjust the spacing between the bearing seat 30 and the base 20. Exemplarily, the spacing adjustment mechanism can be a lead screw structure, a gear rack structure, a worm and worm gear structure, a telescopic rod structure, etc.

[0036] The metal strip cutting system provided by the embodiments of the present application can more effectively protect the surface of materials when producing special strip materials, especially materials with high requirements such as surface coatings (such as tin coatings) that are prone to damage, eliminating quality problems such as frictional scratches on the material surface. At the same time, there is no need to frequently perform dust removal or scratch prevention during the production process, improving the working efficiency of cutting production. In addition, the roller shaft group frame is convenient for installation and disassembly on the support platform and can be flexibly operated according to actual production requirements. For example, when cutting materials with lower surface requirements, the roller shaft group frame can be disassembled from the support platform, and the material can be directly supported by the arc-shaped support surface of the support platform to reduce the wear of the roller shaft group frame and increase the service life of the roller shaft group frame.

[0037] Based on the above embodiments of the present application, in the absence of an explicit negation or conflict, the technical features of one embodiment can be beneficially combined with one or more other embodiments.

[0038] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or partial technical features can be equivalently replaced without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A metal strip cutting system, used for cutting a metal strip into a plurality of narrow strips with a width smaller than that of the metal strip along its longitudinal direction, characterized in that: The metal strip cutting system comprises: An unwinding device, the unwinding device is used to support and release the mother coil formed by winding the metal strip, and to level the metal strip; A cutting tool, the cutting tool is located in front of the unwinding device along the conveying direction of the metal strip, the cutting tool is used to receive the metal strip from the unwinding device and cut the metal strip into a plurality of the narrow strips along its longitudinal direction; A winding device, the winding device is located in front of the cutting tool along the transmission direction of the narrow strip, the winding device is used to receive the narrow strip and wind the narrow strip on the winding device, when the metal strip is cut by the metal strip cutting system, a deep well is arranged between the cutting tool and the winding device, the deep well is lower than the cutting tool and the winding device, the narrow strip formed by the cutting tool first moves downward to the bottom of the deep well, then turns back from the bottom of the deep well and moves upward to leave the deep well, and then is wound by the winding device; A support platform, wherein the support platform is located in front of the cutting tool along the transmission direction of the narrow strip, and when the metal strip is cut by the metal strip cutting system, the support platform is located between the deep well and the cutting tool, and a circular arc-shaped support surface is formed on a side of the support platform close to the narrow strip, so that the narrow strip can smoothly transition into the deep well through the circular arc-shaped support surface; A roller assembly frame, wherein the roller assembly frame is arranged on the support platform, and the support platform supports the narrow belt through the roller assembly frame. A plurality of support rollers are arranged on the roller assembly frame, and the length of the support rollers is greater than the width of the metal strip. The axes of the plurality of support rollers are arranged along the circumferential direction of the arc-shaped support surface, and the extension direction of the axis of each support roller is parallel to the arc-shaped support surface and perpendicular to the transmission direction of the narrow belt. When the support platform supports the narrow belt through the roller assembly frame, the support rollers are in contact with the narrow belt.

2. The metal strip cutting system according to claim 1, characterized in that: The roller assembly frame comprises: A base, the base being arranged on the support platform; Multiple groups of bearing seats are arranged on the base, and the multiple groups of bearing seats are arranged along the circumference of the arc-shaped supporting surface. The number of groups of bearing seats is the same as the number of supporting rollers, and both ends of each supporting roller are rotatably connected to a group of bearing seats.

3. The metal strip cutting system according to claim 2, characterized in that: The base is in an arch shape that fits the arc-shaped supporting surface.

4. The metal strip cutting system according to claim 3, characterized in that: The base is a rectangular frame structure, one set of opposite sides of the base is bent to form an arch, the other set of opposite sides of the base is a straight line, and the bearing seat is arranged on the opposite sides of the arch of the base.

5. The metal strip cutting system according to claim 4, characterized in that: A plurality of reinforcing members are also arranged between the opposite sides of the arch of the base, and the two ends of the reinforcing members are respectively connected to the opposite sides of the arch, and the reinforcing members are located in the curved surface where the opposite sides of the arch are located.

6. The metal strip cutting system according to claim 4, characterized in that: The arched opposite sides of the base are respectively provided with hanging ears, and the hanging ears limit the movement of the base along the circumferential direction of the support platform.

7. The metal strip cutting system according to claim 6, characterized in that: The support platform is formed by splicing multiple arc-shaped metal plates, and the two sides of two adjacent metal plates are hinged by hinges, and the hinges protrude from the edges of the two sides of the metal plates; The end of the hanging ear forms a V-shaped groove, and the hanging ear is engaged with the hinge through the V-shaped groove.

8. The metal strip cutting system according to claim 2, characterized in that: Through holes are respectively provided on both sides of the bearing seat, and each of the bearing seats is connected to the base via bolts passing through the through holes, wherein one or more gaskets are also passed through the bolts of each through hole, and the gaskets are located between the bearing seat and the base.

9. The metal strip cutting system according to claim 2, characterized in that: The roller assembly frame also includes: A spacing adjustment mechanism, wherein the bearing seat is arranged on the base through the spacing adjustment mechanism, and a height adjustment mechanism is arranged to adjust the spacing between the bearing seat and the base.

10. The metal strip cutting system according to claim 1, characterized in that: The surface of the supporting roller is made of rubber.

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