Flat steel shearing machine

Abstract

The utility model relates to a flat steel shearing machine, which belongs to the field of cutting equipment and comprises a support plate, a cutter for cutting a steel plate strip placed on the support plate is arranged on the support plate, and the cutter is connected with a lifting hydraulic cylinder for driving the cutter to cut the steel plate strip along the vertical direction. A plurality of guide rollers are further connected to the position, located on one side of the cutter, of the supporting plate, each guide roller is parallel to the cutter, and the upper sides of the guide rollers are flush with the upper side of the supporting plate; the guide roller can drive the steel plate strip abutting against the guide roller to move towards the side close to the center of the guide roller. The flat steel cutting device has the effect of improving the quality of the cut flat steel.

Description

Technical Field

[0001] The present application relates to the field of cutting equipment, in particular to a flat steel shearing machine. Background Art

[0002] Flat steel is a steel product with a rectangular cross section and slightly blunt edges. Flat steel can be a finished steel product, or it can be used as a blank for welded pipes and thin plate blanks for rolled thin plates. Flat steel as a finished product can be used to make square pipes and then used in various industrial scenarios.

[0003] In the production process of flat steel, strip steel is generally used as raw material. The strip steel is longitudinally cut to form a steel plate strip, and then the steel plate strip is cross-cut to form a flat steel with a certain length.

[0004] During cross-cutting, since the steel strip is mainly transported by rollers, the steel strip below the cutter may tilt, causing the flat steel cut to tilt after cutting, affecting the quality of the flat steel, and further affecting the quality of the subsequent square tube made from the flat steel. Utility Model Content

[0005] In order to improve the quality of flat steel after cutting, the present application provides a flat steel shearing machine.

[0006] The flat steel shearing machine provided in this application adopts the following technical solution:

[0007] A flat steel shearing machine comprises a support plate, on which a cutter for cutting a steel plate strip placed on the support plate is provided, the cutter is connected to a lifting hydraulic cylinder for driving the cutter to cut the steel plate strip in a vertical direction, the support plate is located on one side of the cutter and is also connected to a plurality of guide rollers, each of the guide rollers is arranged parallel to the cutter, and the upper sides of the plurality of guide rollers are arranged flush with the upper side of the support plate, and the guide rollers can drive the steel plate strip abutting against the guide rollers to move toward a side close to the center of the guide rollers.

[0008] By adopting the above technical scheme, when it is necessary to cut the steel plate strip, the steel plate strip after longitudinal shearing is placed on the support plate, and then a plurality of guide rollers are rotated. During the rotation of the guide rollers, the plurality of steel plate strips after longitudinal shearing are driven to move toward the middle, so that the side walls of the plurality of steel plate strips abut against each other so that the plurality of steel plate strips are parallel and perpendicular to the guide rollers. After passing through the guide rollers, the steel plate strip moves to the cutter, and the lifting hydraulic cylinder is started to drive the cutter to cut the steel plate strip, thereby reducing the poor quality of the finished flat steel due to the inclination of the incision caused by the mutual inclination of the steel plate strips, which affects the subsequent use.

[0009] Optionally, a guide pressure plate is further provided above the guide roller, and the guide pressure plate can limit the position of the steel strip abutting against the guide roller.

[0010] By adopting the above technical scheme, due to the presence of the guide pressure plate, the steel strip under the guide pressure plate can fully contact the guide roller under the action of the guide pressure plate, thereby reducing the occurrence of the phenomenon that the guide roller is difficult to contact with the steel strip, making it difficult for the guide roller to adjust the position of the steel strip.

[0011] Optionally, a plurality of guide pressure rollers are installed on the side of the guide pressure plate close to the guide roller and cooperate with the guide roller to press the steel strip, and each of the guide pressure rollers is arranged parallel to the guide roller.

[0012] By adopting the above technical solution, due to the presence of the guide pressure roller, during the process of pressing the steel strip, the guide roller can contact the steel strip, thereby reducing the friction between the steel strip and the guide pressure plate, causing the steel strip to wear.

[0013] Optionally, both sides of the cutter are provided with a clamping assembly for pressing the steel strip.

[0014] By adopting the above technical solution, due to the presence of the clamping assembly, the phenomenon of the quality of the flat steel after cutting being affected by the movement of the position of the steel strip due to the cutting knife is reduced.

[0015] Optionally, the clamping assembly includes lower pressing plates located on both sides of the cutter and capable of pressing the steel strip.

[0016] By adopting the above technical solution, due to the existence of the lower pressure plate, the lower pressure plate can press the steel strips on both sides of the cutter, so that the lower pressure plate can fix the position of the steel strip during the process of the cutter cutting the steel strip.

[0017] Optionally, a pressure spring is connected to the upper side of each lower pressure plate, so that the lower pressure plate can press the steel strip before the cutter.

[0018] By adopting the above technical solution, due to the presence of the pressure spring, the lower pressure plate contacts the steel strip before the cutter, thereby achieving sufficient pressing of the lower pressure plate on the steel strip during the process of the cutter cutting the steel strip.

[0019] Optionally, each of the lower pressure plates is provided with a sliding plate for pressing the steel strip on one side away from the cutter, and the sliding plate can straighten the steel strip on the lower side of the cutter.

[0020] By adopting the above technical solution, since the sliding pressure plate can straighten the steel strip under the cutter, the cutter can cut the steel strip more accurately.

[0021] Optionally, a cutter connecting plate is connected between the lifting hydraulic cylinder and the cutter, a sliding pressure connecting plate is rotatably connected between each sliding pressure plate and the cutter connecting plate, and sliding pressure springs are also connected to the opposite sides of the two sliding pressure connecting plates, so that the angle between the sliding pressure connecting plate and the lower pressure plate is set at an acute angle.

[0022] By adopting the above technical scheme, when the lifting hydraulic cylinder drives the cutter to move downward, the lifting hydraulic cylinder drives the sliding pressure plate to move downward. After the sliding pressure plate contacts the steel plate strip, the cutter link plate continues to move downward driven by the lifting hydraulic cylinder. In the process of the cutter link plate moving downward, the ends of the two sliding pressure links are squeezed downward, and the two sliding pressure links move away from the ends of the cutter link plate in directions away from each other, thereby driving the two sliding pressure plates to move away from each other. Since the sliding pressure plate abuts against the steel plate strip, the sliding pressure plate can drive the abutting steel plate strip to move away from each other during the movement, thereby realizing the straightening process of the steel plate strip.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the cooperation of the guide roller, the guide pressure plate and the guide pressure roller, the position of the steel strip placed on the support plate can be adjusted, so that the cutting position can be more accurate during the process of the cutter cutting the steel strip;

[0025] 2. The two lower pressing plates and the pressure springs connected to each lower pressing plate can press the steel strip when the cutter cuts the steel strip, so that the position of the cutter cutting the steel strip is more accurate;

[0026] 3. Through the existence of two sliding plates and two sliding connecting plates, the steel strip under the cutter can be stretched, so that the position of the cutter cutting the steel strip is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view highlighting the positional relationship between the guide roller and the guide pressure plate of an embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view highlighting the connection relationship between the clamping assembly and the cutter of an embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Support plate; 2. Cutter; 21. Cutter connecting plate; 3. Lifting hydraulic cylinder; 4. Guide roller; 41. Connecting pulley; 42. Connecting belt; 5. Guide motor; 6. Guide pressure plate; 61. Guide pressure roller; 7. Clamping assembly; 71. Lower pressure plate; 72. Telescopic sleeve; 721. Fixed cylinder; 722. Sliding rod; 73. Pressure spring; 74. Sliding pressure plate; 75. Sliding pressure connecting plate; 76. Sliding pressure spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0032] The present application embodiment discloses a flat steel shearing machine, referring to Figure 1 , including a support plate 1, the upper surface of which is horizontally arranged. A cutter 2 is arranged above the support plate 1, and the cutter 2 is arranged vertically and perpendicular to the moving direction of the steel strip placed on the support plate 1. A horizontally arranged cutter connecting plate 21 is fixedly connected to the upper side of the cutter 2, and a lifting hydraulic cylinder 3 is connected to the middle position of the upper surface of the cutter connecting plate 21, and the piston rod of the lifting hydraulic cylinder 3 is arranged vertically downward and fixedly connected to the upper surface of the cutter connecting plate 21, and the lifting hydraulic cylinder 3 is fixedly connected to the support plate 1 below through the connecting plate.

[0033] A groove is provided downward on the upper surface of the support plate 1 on one side of the cutter 2. In this embodiment, two grooves are provided, and the length direction of each groove is parallel to the length direction of the cutter 2. A guide roller 4 is provided inside each groove and is provided parallel to the cutter 2. Each guide roller 4 is provided with threads with opposite rotation directions along the center line of the length direction of the guide roller 4 to both ends, so that the guide roller 4 can drive the steel strip to move toward the center side of the guide roller 4 while driving the steel strip to move toward the cutter 2. The upper surfaces of the two guide rollers 4 are flush with the upper surface of the support plate 1.

[0034] One end of each guide roller 4 penetrates the side wall of the support plate 1 and is rotatably connected to the side wall of the support plate 1. One end of each guide roller 4 that penetrates the side wall of the support plate 1 is fixedly connected to a connecting pulley 41, and the two connecting pulleys 41 are sleeved with the same connecting belt 42. One of the connecting pulleys 41 is fixedly connected to a guide motor 5 for driving the connected connecting pulley 41 to rotate.

[0035] When the steel strip needs to be cut, since the steel strips placed on the support plate 1 are multiple steel strips after longitudinal shearing, they may tilt relative to each other during the movement. When multiple steel strips move to the guide roller 4, the guide motor 5 is turned on, the guide motor 5 drives the connecting pulley 41 to rotate, the connecting pulley 41 drives the connecting belt 42 to rotate, and the connecting belt 42 rotates to drive another connecting pulley 41 to rotate, thereby realizing the rotation of the two guide rollers 4. During the rotation, the two guide rollers 4 drive the steel strips abutting against the guide rollers 4 to move toward the side close to the cutter 2, and drive different steel strips to move toward the side close to the center of the guide roller 4, thereby realizing the process of driving the steel strips on the support plate 1 to move in a direction close to each other.

[0036] Reference Figure 2 A guide pressing plate 6 is further disposed above the two guide rollers 4, and the lower surface of the guide pressing plate 6 is arranged parallel to the upper surface of the support plate 1. A groove is formed upward on the lower surface of the guide pressing plate 6, and a plurality of guide pressing rollers 61 are arranged inside the groove, and the plurality of guide pressing rollers 61 are arranged parallel to the guide roller 4 on the lower side, and the lower sides of the plurality of guide pressing rollers 61 are arranged flush with the lower surface of the guide pressing plate 6.

[0037] Due to the presence of the guide pressure plate 6 and the guide pressure roller 61, when the steel strip moves to the guide roller 4, the guide pressure roller 61 and the guide pressure plate 6 can better guide the steel strip on the support plate 1, so that the steel strip can fully contact the guide roller 4, so that the guide roller 4 can better drive the steel strip to move.

[0038] Reference Figure 3 A clamping assembly 7 for clamping the steel strip cut by the cutter 2 is also provided on both sides of the cutter 2.

[0039] The clamping assembly 7 includes lower pressing plates 71 located on both sides of the cutter 2, and the lower surface of each lower pressing plate 71 is arranged parallel to the upper surface of the support plate 1. A telescopic sleeve 72 is connected between the upper surface of each lower pressing plate 71 and the lower surface of the cutter connecting plate 21, and the telescopic sleeve 72 includes a fixed cylinder 721 fixedly connected to the lower surface of the cutter connecting plate 21, and a slide bar 722 slidably inserted in the fixed cylinder 721, and one end of the slide bar 722 located in the fixed cylinder 721 is fixedly connected to a pressure spring 73, and one end of the pressure spring 73 away from the slide bar 722 is fixedly connected to the lower surface of the cutter connecting plate 21. Under the action of the telescopic sleeve 72 and the pressure spring 73, the lower pressing plate 71 can contact the steel strip placed on the support plate 1 before the cutter 2.

[0040] During actual use, when the steel strip is transported to the bottom of the cutter 2, the lifting hydraulic cylinder 3 is started. During the process of the lifting hydraulic cylinder 3 driving the cutter connecting plate 21 to move downward, the cutter connecting plate 21 drives the two lower pressure plates 71 and the cutter 2 to move downward. The two lower pressure plates 71 first contact the steel strip to realize the pressing process of the steel strip, and then the cutter 2 cuts the steel strip pressed by the two lower pressure plates 71, thereby realizing the cutting process of the steel strip, which also makes the position of the steel strip more stable during the cutting process.

[0041] Each lower pressure plate 71 is also provided with a sliding plate 74 on the side away from the cutter 2. The upper surface of each sliding plate 74 is rotatably connected with a sliding plate 75. The side of each sliding plate 75 away from the sliding plate 74 is rotatably connected to the lower surface of the cutter connecting plate 21. The opposite surfaces of the two cutter connecting plates 21 are connected with sliding springs 76. In this embodiment, the number of sliding springs 76 connected to each cutter connecting plate 21 is two, and the two sliding springs 76 are arranged at intervals on both sides of the sliding plate 75. The side of each sliding spring 76 away from the connected sliding plate 75 is connected to the adjacent fixed cylinder 721. Under the action of the sliding spring 76, the extension lines of the two sliding plates 75 and the upward extension lines of the cutter 2 form a certain angle. The two sliding plates 74 also contact the steel strip before the cutter 2.

[0042] When the steel plate strip moves to the bottom of the cutter 2, the lifting hydraulic cylinder 3 is started to drive the cutter link plate 21 to move downward, and the cutter link plate 21 drives the two sliding plates 74 to move downward. When the two sliding plates 74 come into contact with the steel plate strip, the cutter link plate 21 continues to move downward. During the downward movement of the cutter link plate 21, the two sliding plates 74 are driven by the two sliding plates 75 to move toward the side away from the cutter 2 while abutting the steel plate strip, so that the sliding plate 74 can straighten the steel plate strip under the cutter 2, so that the cutting position of the cutter 2 in the process of cutting the steel plate strip can be more accurate.

[0043] The implementation principle of a flat steel shearing machine in an embodiment of the present application is: when the steel strip needs to be cut, the steel strip is placed on the support plate 1, and then the guide motor 5 is started to drive the steel strip on the support plate 1 to move toward the center of the guide roller 4, so that the steel strips can be arranged parallel to each other.

[0044] Then the lifting hydraulic cylinder 3 is started, and the lifting hydraulic cylinder 3 drives the two sliding plates 74 to straighten the steel strip. The two lower pressure plates 71 press the steel strip under the drive of the lifting hydraulic cylinder 3, and then the cutter 2 cuts the steel strip on the support plate 1, thereby realizing the cutting process of the steel strip.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flat steel shearing machine, characterized in that: The invention comprises a support plate (1), on which a cutter (2) is provided for cutting a steel strip placed on the support plate (1), and the cutter (2) is connected to a lifting hydraulic cylinder (3) for driving the cutter (2) to cut the steel strip in a vertical direction. The support plate (1) is also connected to a plurality of guide rollers (4) on one side of the cutter (2), each of the guide rollers (4) being arranged parallel to the cutter (2), and the upper sides of the plurality of guide rollers (4) being arranged flush with the upper side of the support plate (1), and the guide rollers (4) being able to drive the steel strip abutting against the guide rollers (4) to move toward a side close to the center of the guide rollers (4).

2. A flat steel shearing machine according to claim 1, characterized in that: A guide pressure plate (6) is also provided above the guide roller (4), and the guide pressure plate (6) can limit the position of the steel strip abutting against the guide roller (4).

3. A flat steel shearing machine according to claim 2, characterized in that: A plurality of guide pressure rollers (61) are installed on one side of the guide pressure plate (6) close to the guide roller (4) for cooperating with the guide roller (4) to press the steel strip, and each guide pressure roller (61) is arranged parallel to the guide roller (4).

4. A flat steel shearing machine according to any one of claims 1 to 3, characterized in that: Both sides of the cutter (2) are provided with pressing components (7) for pressing the steel strip.

5. A flat steel shearing machine according to claim 4, characterized in that: The clamping assembly (7) comprises lower pressing plates (71) located on both sides of the cutter (2) and capable of pressing the steel strip.

6. A flat steel shearing machine according to claim 5, characterized in that: A pressure spring (73) is connected to the upper side of each lower pressing plate (71), so that the lower pressing plate (71) can press the steel strip before the cutter (2).

7. A flat steel shearing machine according to claim 6, characterized in that: A sliding plate (74) for pressing the steel strip is provided on the side of each lower pressing plate (71) away from the cutter (2), and the sliding plate (74) can straighten the steel strip on the lower side of the cutter (2).

8. The flat steel shearing machine according to claim 7, characterized in that: A cutter connecting plate (21) is connected between the lifting hydraulic cylinder (3) and the cutter (2), and a sliding pressure connecting plate (75) is rotatably connected between each of the sliding pressure plates (74) and the cutter connecting plate (21), and sliding pressure springs (76) are also connected to the opposite sides of the two sliding pressure connecting plates (75), so that the angle between the sliding pressure connecting plate (75) and the lower pressure plate (71) is set to be an acute angle.

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