Rewinding device for plate shearing machine

Abstract

A rewinding device for a plate shearing machine relates to the technical field of plate shearing equipment and comprises a base, a conveying mechanism and a support. A conveying mechanism is arranged at one end of the base, and a bracket for supporting a material coil is arranged at the other end of the base; the conveying mechanism comprises a frame body, the frame body is rotationally connected with a second driving roller used for conveying materials, and the position, corresponding to the upper portion of the second driving roller, of the frame body is rotationally connected with a pressing roller used for pressing the materials on the second driving roller. A mounting frame is arranged at the position, corresponding to the position between the conveying mechanism and the support, of the base, a swing arm is hinged to the mounting frame and rotationally connected with a first driving roller, and a telescopic cylinder used for driving the swing arm to deflect so as to enable the first driving roller to be pressed on the material roll is mounted between the base and the swing arm; a motor for synchronously driving the first driving roller and the second driving roller is mounted on the mounting frame; the tension degree of materials between the conveying mechanism and the support can be kept unchanged all the time, and the materials can be stably conveyed to the plate shearing machine.

Description

Technical Field

[0001] The utility model relates to the technical field of plate shearing equipment, in particular to a rewinding device for a plate shearing machine. Background Art

[0002] As is known, during the current casting and rolling production, the holding furnace needs to be refined every 4 hours, and 80-120kg of aluminum plates need to be added before refining. These aluminum plates need to be sheared when the casting and rolling coils are unloaded for use in the holding furnace refining. Ten casting and rolling production lines need to shear about 180 tons of finished products per month for use in the holding furnace refining. However, due to processing defects, process adjustments, etc. in the production process, small coils and waste coils are generated every day. If these coils can be sheared into aluminum plates, they can be used for refining in the holding furnace; however, the existing shearing machine lacks a rewinding device that can automatically feed the material, and the operator's manual feeding is inefficient and labor-intensive;

[0003] A Chinese patent (publication number: CN219805678U) discloses a metal coil leveling and cross-cutting production line; the patent feeder is on the feeding side of the shearing machine; the feeder includes a feeder frame and an upper pressure roller and a lower pressure roller installed on the feeder frame, and also has a reduction motor A for driving the lower pressure roller to rotate, and a material gap for the sheet material to pass through is set between the upper pressure roller and the lower pressure roller, and the material gap is equal to or slightly less than the thickness of the sheet material. Under the rotation drive of the lower pressure roller, the coiled sheet material is driven into the shearing machine, and the sheet material is fixed in length according to the number of rotations. After the fixed length, the lower pressure roller stops rotating, and the shearing machine cuts the coiled sheet material; when in use, it is found that the patent structure often has a rotation speed of the metal coiled sheet material inconsistent with the feeding speed of the feeder during operation, which causes the tension of the material between the feeder and the shearing machine to be too large, resulting in material breakage, or excessive rotation of the metal coiled sheet material causes the material between the feeder and the shearing machine to curl. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses a rewinding device for a plate shearing machine.

[0005] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0006] A rewinding device for a shearing machine comprises a base, a conveying mechanism and a bracket; a conveying mechanism is provided at one end of the base, and a bracket for supporting a material roll is provided at the other end; the conveying mechanism comprises a frame body, the frame body is rotatably connected to a second driving roller for conveying materials, and the frame body is rotatably connected to a clamping roller for pressing the material onto the second driving roller above the second driving roller; a mounting frame is provided at a position between the base and the bracket corresponding to the conveying mechanism, the mounting frame is hinged with a swing arm through a hollow hinge shaft, the end of the swing arm facing away from the mounting frame is rotatably connected to a first driving roller, and a telescopic cylinder for driving the swing arm to deflect and thereby press the first driving roller onto the material roll is installed between the base and the swing arm; the mounting frame is installed with a motor for synchronously driving the first driving roller and the second driving roller.

[0007] Preferably, a pressure sensor is installed between the telescopic cylinder and the swing arm.

[0008] Preferably, support frames are provided on both sides of the base corresponding to the conveying mechanism, and rollers for supporting materials are rotatably connected to the top of the support frames at intervals.

[0009] Preferably, the motor is connected to the first drive roller and the second drive roller via a belt drive mechanism or a chain drive mechanism.

[0010] Preferably, both ends of the clamping roller are adjustably connected to the frame body up and down through a screw nut mechanism or a cylinder.

[0011] Preferably, the first driving roller is a rubber roller.

[0012] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0013] The utility model discloses a rewinding device for a shearing machine, which has a simple structure. A mounting frame is provided at a position between a base corresponding to a transmission mechanism and a bracket, the mounting frame is hinged with a swing arm through a hollow hinge shaft, one end of the swing arm away from the mounting frame is rotatably connected to a first driving roller, and a telescopic cylinder for driving the swing arm to deflect and thereby press the first driving roller on the material roll is installed between the base and the swing arm. The roller diameters of the first driving roller and the second driving roller are the same, and they rotate synchronously, so that the tension of the material between the transmission mechanism and the bracket remains unchanged at all times, ensuring that the material can be smoothly transported to the shearing machine, and avoiding the material roll from being broken due to excessive tension of the material between the transmission mechanism and the bracket due to its large inertia or inconsistent rotation speed of the material roll with the transmission speed of the transmission mechanism, or curling of the material between the transmission mechanism and the bracket due to excessive rotation of the material roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure between the telescopic cylinder and the swing arm.

[0016] In the figure: 1. base; 2. frame; 3. second driving roller; 4. clamping roller; 5. bracket; 6. mounting frame; 7. swing arm; 8. first driving roller; 9. telescopic cylinder; 10. pressure sensor; 11. support frame; 12. roller. DETAILED DESCRIPTION

[0017] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0018] Embodiment 1, in combination with Figure 1 A rewinding device for a plate shearing machine comprises a base 1, a conveying mechanism and a bracket 5; the base 1 is provided with a conveying mechanism at one end and a bracket 5 for supporting a material roll at the other end, that is, the top of the bracket 5 can be a groove-shaped structure, and the two ends of the reel of the material roll can be adapted to the corresponding groove-shaped structure at the top of the bracket 5, so that the material roll can rotate freely and the material change is convenient and fast; the conveying mechanism comprises a frame 2, the frame 2 is rotatably connected to a second driving roller 3 for conveying materials, and the frame 2 is rotatably connected to a pressing roller 4 for pressing the material onto the second driving roller 3 above the second driving roller 3;

[0019] A mounting frame 6 is provided at a position between the base 1 and the corresponding transmission mechanism and the bracket 5. The mounting frame 6 is hinged with a swing arm 7 through a hollow hinge shaft. The end of the swing arm 7 facing away from the mounting frame 6 is rotatably connected with a first driving roller 8. A telescopic cylinder 9 for driving the swing arm 7 to deflect and thus press the first driving roller 8 on the material roll is installed between the base 1 and the swing arm 7; the mounting frame 6 is installed with a motor for synchronously driving the first driving roller 8 and the second driving roller 3, and the motor is connected to the first driving roller 8 and the second driving roller 3 through a belt transmission mechanism or a chain transmission mechanism; when installing the motor, the output shaft of the motor is made coaxial with the hollow hinge shaft of the mounting swing arm 7, so that the motor and the first driving roller 8 always maintain a transmission connection when the swing arm 7 is deflected;

[0020] When in use, the base 1 is set at the feed port of the shearing machine, the material roll is mounted on the bracket 5, and the material of the material roll passes through the frame 2, and the material is pressed onto the second driving roller 3 through the clamping roller 4; the telescopic cylinder 9 is controlled to extend, and the telescopic cylinder 9 drives the swing arm 7 to deflect upward, and the swing arm 7 drives the first driving roller 8 to move upward until the first driving roller 8 is pressed on the material roll; the motor is started, and the motor drives the first driving roller 8 and the second driving roller 3 to rotate synchronously to transport the material to the shearing machine; and as the material on the material roll gradually decreases, the telescopic cylinder 9 is controlled to gradually extend so that the first driving roller 8 can always be pressed on the material roll; when replacing the material roll, the telescopic cylinder 9 is controlled to shorten so that the swing arm 7 deflects downward to avoid interference between the first driving roller 8 and the new material roll; the first driving roller 8 is a rubber roller, which can make the first driving roller 8 and the material have a large friction force to drive the material forward;

[0021] It should be noted that the first drive roller 8 and the second drive roller 3 have the same roller diameter and rotate synchronously, so that the tension of the material between the conveying mechanism and the bracket 5 remains unchanged at all times, ensuring that the material can be smoothly conveyed to the shearing machine, and avoiding the material roll being too tight between the conveying mechanism and the bracket 5 due to its large inertia or the inconsistent rotation speed of the material roll with the conveying speed of the conveying mechanism, thereby causing the material to break, or the material roll being excessively rotated, causing the material between the conveying mechanism and the bracket 5 to curl.

[0022] Embodiment 2, in combination with Figure 2 , a rewinding device for a shearing machine, which is different from Example 1 in that, on the basis of Example 1, a pressure sensor 10 is installed between the telescopic cylinder 9 and the swing arm 7, that is, the pressure between the telescopic cylinder 9 and the swing arm 7 can be detected by the pressure sensor 10, which indirectly reflects the pressure between the first drive roller 8 and the material roll, and the pressure threshold can be set. When the pressure sensor 10 detects that the pressure between the telescopic cylinder 9 and the swing arm 7 is less than the threshold, the telescopic cylinder 9 is automatically controlled to extend, so that the first drive roller 8 can always be pressed on the material roll, and the pressure between the first drive roller 8 and the material roll can be kept within an appropriate range.

[0023] Embodiment 3, in combination with Figure 1 , a rewinding device for a shearing machine, based on embodiment 1 or 2, support frames 11 are provided on both sides of the base 1 corresponding to the conveying mechanism, and rollers 12 for supporting materials are rotatably connected to the top of the support frame 11 at intervals. The material can be supported by the support frame 11 and the rollers 12, so that the material can be smoothly conveyed to the shearing machine; both ends of the clamping roller 4 are adjustably connected to the frame body 2 up and down through a screw nut mechanism or a cylinder, and the clamping roller 4 can be adjusted up and down according to the thickness of the material, ensuring that the clamping roller 4 can press the material on the second driving roller 3, so that the second driving roller 3 can effectively drive the material forward.

[0024] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A rewinding device for a plate shearing machine, characterized in that: The invention comprises a base (1), a conveying mechanism and a bracket (5); the base (1) is provided with a conveying mechanism at one end and a bracket (5) for supporting a material roll at the other end; the conveying mechanism comprises a frame (2), the frame (2) is rotatably connected to a second driving roller (3) for conveying materials, and the frame (2) is rotatably connected to a pressing roller (4) for pressing the materials onto the second driving roller (3) above the second driving roller (3); the base (1) is provided with a mounting frame (6) at a position between the conveying mechanism and the bracket (5), the mounting frame (6) is hinged to a swing arm (7) via a hollow hinge shaft, the end of the swing arm (7) facing away from the mounting frame (6) is rotatably connected to a first driving roller (8), and a telescopic cylinder (9) for driving the swing arm (7) to deflect so as to press the first driving roller (8) onto the material roll is installed between the base (1) and the swing arm (7); and the mounting frame (6) is installed with a motor for synchronously driving the first driving roller (8) and the second driving roller (3).

2. The rewinding device for a plate shearing machine according to claim 1, characterized in that: A pressure sensor (10) is installed between the telescopic cylinder (9) and the swing arm (7).

3. The rewinding device for a plate shearing machine according to claim 1, characterized in that: Support frames (11) are provided on both sides of the base (1) corresponding to the conveying mechanism, and rollers (12) for supporting materials are rotatably connected to the top of the support frames (11) at intervals.

4. The rewinding device for a plate shearing machine according to claim 1, characterized in that: The motor is connected to the first drive roller (8) and the second drive roller (3) via a belt drive mechanism or a chain drive mechanism.

5. The rewinding device for a plate shearing machine according to claim 1, characterized in that: Both ends of the pressing roller (4) are connected to the frame (2) in an adjustable manner up and down via a screw nut mechanism or a cylinder.

6. The rewinding device for a plate shearing machine according to claim 1, characterized in that: The first driving roller (8) is a rubber roller.

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