A slitting machine

Abstract

The utility model relates to galvanized sheet slitting technical field, in order to solve the problem of existing galvanized sheet slitting after edge rough, provide a kind of slitting machine, including rack, two groups of traction roller groups are provided on the rack, first cutter shaft, second cutter shaft and compression roller are provided on the rack between two groups of traction roller groups, coaxially set up disc press cutter on first cutter shaft, disc press cutter is in contact with compression roller, the position of disc cutter is coaxially set up in the corresponding disc press cutter on second cutter shaft, the both sides of disc cutter are provided with annular recess, further including annular polishing piece, the inboard of annular polishing piece is provided with mounting seat, annular polishing piece is embedded in annular recess, annular polishing piece protrudes from annular recess, a mounting hole is provided on mounting seat, the position of disc cutter corresponding a mounting hole is provided with no.2 mounting hole, a mounting hole and no.2 mounting hole are fixed between through bolt nut, the utility model can effectively eliminate burr and rough section.

Description

Technical Field

[0001] This utility model relates to the field of galvanized sheet slitting technology, specifically to a slitting machine and its production apparatus. Background Technology

[0002] In the large-scale processing of galvanized sheet coils, slitting machines are the core equipment for efficiently cutting wide master coils into multiple narrow strip coils. The basic principle is that a pair of precisely assembled, relatively rotating disc-shaped shearing blades apply shearing force longitudinally to the continuously moving material, thus completing the slitting. Due to its high production efficiency and suitability for continuous operation, this technology has become a standard pretreatment process before processing galvanized and color-coated strips.

[0003] However, in actual production applications, the traditional slitting process for cutting galvanized sheets generally has a significant technical pain point: the edge quality of the cut strips is poor, the edge cross-section is relatively rough, and it is often accompanied by defects such as burrs. The rough edge appearance is difficult to meet the requirements of downstream applications such as high-end home appliances that have strict requirements for appearance and quality. Utility Model Content

[0004] To address the aforementioned technical deficiencies, this invention provides a slitting machine that effectively improves the problem of rough edges after slitting galvanized sheets.

[0005] This utility model discloses a slitting machine, including a frame, two sets of traction rollers and a first drive motor for driving the traction rollers are mounted on the frame, a first cutter shaft, a second cutter shaft and a pressure roller are mounted on the frame between the two sets of traction rollers, the first cutter shaft, the second cutter shaft and the pressure roller are parallel to each other, a disc pressure knife is coaxially mounted on the first cutter shaft and the disc pressure knife contacts the pressure roller, a disc cutter is coaxially mounted on the second cutter shaft corresponding to the position of the disc pressure knife, the disc cutter has annular grooves on both sides, and also includes annular grinding discs, a mounting seat is provided on the inner side of the annular grinding discs, the annular grinding discs are embedded in the annular grooves and protrude from the annular grooves, the mounting seat has a first mounting hole, and the disc cutter has a second mounting hole corresponding to the first mounting hole, the first mounting hole and the second mounting hole are fixed together by bolts and nuts, and a second drive motor for driving the second cutter shaft is mounted on the frame.

[0006] The principle of the above technical solution is that the disc pressure knife and the pressure roller work together to press a continuous indentation at the preset cutting line position when the galvanized sheet is pulled by the traction roller group. This indentation causes the material at that point to undergo plastic deformation and the thickness is locally reduced to an extremely thin thickness. As a result, the cutting resistance is very small when the disc cutter performs subsequent slitting, which is conducive to obtaining a smoother initial cross-section. More importantly, this utility model has annular grinding discs embedded in the annular grooves on both sides of the disc cutter. When the disc cutter completes the cutting along the pre-pressed thin trajectory, the high-speed rotating grinding discs simultaneously scrape and polish the newly formed edge. This precise positioning compound action directly eliminates the burrs and rough layers produced by the traditional pure shearing process.

[0007] To facilitate the replacement of the ring-shaped grinding disc, the ring-shaped grinding disc is divided into two halves, each of which is equipped with a mounting base.

[0008] To dissipate heat from the disc cutter and the annular grinding disc in a timely manner, a fan is installed on the frame, with the fan directed towards the disc cutter and the annular grinding disc.

[0009] The slitting machine and its production apparatus obtained by this utility model have the following advantages: by integrating annular grinding discs on the disc cutter and pre-pressing and thinning the material with a disc pressure knife before cutting, the slitting and edge polishing are carried out simultaneously, thereby significantly improving the edge quality of the galvanized sheet after slitting, effectively eliminating burrs and rough cross-sections, and meeting the stringent requirements of high-end applications for the appearance of the sheet; at the same time, the modular grinding disc design facilitates replacement, and the fan cooling ensures the stability of the cutter, thus improving the overall slitting efficiency, equipment durability and maintenance convenience, and making it suitable for large-scale continuous production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0011] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0012] Example 1: like Figure 1As shown, this utility model discloses a slitting machine, including a frame 1. Two sets of traction roller groups 9 are arranged one in front of the other on the frame 1, along with a drive motor to drive the traction roller groups 9. A first cutter shaft 2 and a second cutter shaft 5 are sequentially arranged on the frame 1 between the two sets of traction roller groups 9. A pressure roller 10 is arranged on the frame 1 below the first cutter shaft 2. The first cutter shaft 2, the second cutter shaft 5, and the pressure roller 10 are parallel to each other. A disc pressure knife 3 is coaxially arranged on the first cutter shaft 2, contacting the pressure roller 10. The disc pressure knife 3 cooperates with the pressure roller 10 to pre-press a continuous indentation at a preset cutting line position as the galvanized sheet is pulled forward by the traction roller groups 9. This indentation causes plastic deformation of the material at that location, locally thinning the thickness to an extremely thin level. A disc cutter 6 is coaxially arranged on the second cutter shaft 5 corresponding to the position of the disc pressure knife 3. The disc cutter 6 has annular grooves on both sides and also includes annular grinding discs 8. The annular grinding discs 8 are divided into two halves, and each half has a mounting base 7 on its inner side. The annular grinding discs 8 are embedded in the annular grooves and protrude from the annular grooves. The mounting base 7 has a first mounting hole, and the disc cutter 6 has a second mounting hole corresponding to the first mounting hole. The first and second mounting holes are fixed together by bolts and nuts. The frame 1 is equipped with a second drive motor that drives the second cutter shaft 5 to rotate. The frame 1 is equipped with a fan 4, which faces the disc cutter 6 and the annular grinding discs 8. The disc cutter 6 performs high-speed cutting on the indentation area, and at the same time, the high-speed rotating grinding discs simultaneously scrape and polish the newly formed edge, directly eliminating the burrs and rough layers produced by the traditional pure shearing process.

Claims

1. A slitting machine, characterized in that: The system includes a frame, on which are mounted two sets of traction rollers and a primary drive motor for driving the traction rollers. Between the two sets of traction rollers, on the frame, are a first cutter shaft, a second cutter shaft, and a pressure roller, all parallel to each other. A disc pressure cutter is coaxially mounted on the first cutter shaft, contacting the pressure roller. A disc cutter is coaxially mounted on the second cutter shaft at the position corresponding to the disc pressure cutter. The disc cutter has annular grooves on both sides. It also includes annular grinding discs, with a mounting base on the inner side of each disc. The disc grinding disc is embedded in the annular grooves and protrudes from them. The mounting base has a primary mounting hole, and the disc cutter has a secondary mounting hole at the position corresponding to the primary mounting hole. The primary and secondary mounting holes are secured together by bolts and nuts. A secondary drive motor for driving the second cutter shaft is mounted on the frame.

2. A slitting machine according to claim 1, characterized in that: The ring-shaped grinding disc is divided into two halves, and each half is equipped with a mounting base.

3. A slitting machine according to claim 1 or 2, characterized in that: A fan is mounted on the frame, directed towards the disc cutter and the annular grinding disc.

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