Scattered coil preventing device for uncoiling aluminum coil

Abstract

The utility model discloses an anti-coil-loosening device for uncoiling an aluminum coil, which comprises an uncoiling machine body and an uncoiling shaft, and further comprises an anti-coil-loosening mechanism, the anti-coil-loosening mechanism comprises a driving unit, a first connecting arm, a second connecting arm, a limiting mechanism and a compression roller, one end of the first connecting arm is connected with the driving unit, and the other end of the second connecting arm is connected with the compression roller. The other end of the first connecting arm is hinged to one end of the second connecting arm, the other end of the second connecting arm is connected with the pressing roller, the pressing roller is rotationally installed at the other end of the second connecting arm, and the limiting mechanism is arranged on the second connecting arm; by adopting the anti-roll-loosening device, even if the force for releasing the aluminum plate exceeds the pressing force applied by the driving unit in the unwinding process of the aluminum roll, the aluminum roll can be fixed, the roll loosening phenomenon is avoided, and even if the instantaneous pressing force is insufficient, the aluminum roll can be fixed. And the problem that the aluminum coil ejects the compression roller to cause coil scattering due to the fact that the release force of the aluminum coil exceeds the pressing force applied by the compression roller can still be solved.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum plate processing equipment, and specifically to an anti-uncoiling device for aluminum coils. Background Technology

[0002] Aluminum coils are widely used in electronics, packaging, construction, machinery and other fields. Aluminum coils are metal products that are rolled and bent on a casting and rolling mill and then cut for flying shearing.

[0003] Aluminum coils need to be uncoiled before processing. Uncoiling is done by an uncoiling machine. The aluminum coil to be uncoiled is mounted on the uncoiling shaft. The aluminum coil itself is quite heavy, and the thickness of the aluminum plate can be close to 10 mm. Therefore, the aluminum coil is prone to uncoiling during the uncoiling process.

[0004] In existing technologies, to prevent aluminum coils from unwinding, a freely rotating pressure roller is installed on the outer circumference of the aluminum coil. The pressure roller adheres to the outer surface of the circumference of the aluminum coil. However, during the unwinding process, when the aluminum sheet itself is thick, the pressure roller cannot easily control the loosening of the aluminum coil. In order to prevent the aluminum coil from loosening, a lot of force is required. This sometimes results in the force released by the aluminum coil exceeding the clamping force applied by the pressure roller, causing the aluminum coil to push open the pressure roller and unwind. Utility Model Content

[0005] To address the problem of aluminum coil unwinding where the force released by the aluminum coil exceeds the clamping force applied by the pressure roller when the aluminum plate is thick, causing the aluminum coil to unwind and scatter, this invention provides an anti-scattering device for aluminum coil unwinding.

[0006] To solve the above-mentioned technical problems, this utility model provides an anti-unwinding device for aluminum coil unwinding, including an unwinding machine body and an unwinding shaft. The unwinding shaft extends horizontally outward from one side of the unwinding machine body. It also includes an anti-unwinding mechanism, which includes a drive unit, a first connecting arm, a second connecting arm, a limiting mechanism, and a pressure roller. One end of the first connecting arm is connected to the drive unit, and the other end of the first connecting arm is hinged to one end of the second connecting arm. The other end of the second connecting arm is connected to the pressure roller, which is rotatably mounted on the other end of the second connecting arm. The limiting mechanism is disposed on the second connecting arm and is used to prevent the pressure roller from detaching from the outer circumference of the aluminum coil.

[0007] In an embodiment of this utility model, the limiting mechanism includes a limiting turntable, a limiting member, and a mounting base. The limiting turntable is fixedly installed on the second connecting arm at one end that is hinged to the first connecting arm. The outer circumferential surface of the limiting turntable has a plurality of continuously arranged gear teeth along the circumferential direction. The mounting base is fixedly installed on the uncoiling machine body. The limiting member is installed at the bottom end of the mounting base. The limiting member and the mounting base form a sliding connection that can be raised and lowered. The bottom end of the limiting member has helical teeth that lock with the gear teeth.

[0008] In an embodiment of this utility model, the limiting mechanism further includes a spring and a guide rod. The guide rod and the mounting base form a vertical sliding connection. The limiting member is fixedly installed at the bottom end of the guide rod. The spring is wound around the outer circumferential surface of the guide rod and compressed between the bottom end surface of the mounting base and the upper end surface of the limiting member.

[0009] In an embodiment of this utility model, the mounting base has a vertically arranged sliding groove, and a cavity communicating with it is provided above the sliding groove. The opening size of the cavity is larger than the opening size of the sliding groove. The guide rod includes a guide rod body and a limiting block. The limiting block is located at the top of the guide rod body, and the outer dimensions of the limiting block are larger than the outer dimensions of the guide rod body. The guide rod is slidably installed in the sliding groove, the limiting block is slidably installed in the cavity, and the limiting element is fixedly installed at the bottom end of the guide rod body.

[0010] In an embodiment of this utility model, the gear teeth include a helical tooth surface and a straight tooth surface. The bottom end of the straight tooth surface is vertically mounted on the bottom end of the helical tooth surface. The bottom end of the limiting member includes an inclined portion that matches the helical tooth surface and a locking portion that matches the straight tooth surface.

[0011] In embodiments of this utility model, the drive unit is a hydraulic cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By employing the aforementioned anti-unwinding device, even during the unwinding process of the aluminum coil, even if the force of releasing the aluminum plate exceeds the pressing force applied by the drive unit, the aluminum coil can be fixed and will not unwind. With this structure, this solution can stably press the aluminum coil to prevent it from loosening, and even if the instantaneous pressing force is insufficient, it can still solve the problem of the aluminum coil unwinding due to the force of the released aluminum coil exceeding the pressing force applied by the pressure roller. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1This is a front view structural diagram of the anti-unwinding device for aluminum coil unwinding in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram illustrating the structural principle of the limiting mechanism in the embodiments of this application.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0018] Figure 4 This is a schematic diagram illustrating the structural principle of the guide rod installed in the mounting base in an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures

[0020] 10-Anti-unwinding device;

[0021] 20-Aluminum Coil;

[0022] 100 - Uncoiler body;

[0023] 200 - Unrolling spool;

[0024] 300-Anti-winding mechanism, 301-Drive unit, 302-First connecting arm, 303-Second connecting arm, 304-Pressure roller, 305-Limiting mechanism, 3051-Mounting base, 30511-Cavity, 3052-Spring, 3053-Limiting component, 30531-Inclined part, 30532-Locking part, 3054-Limiting turntable, 30541-Helical tooth surface, 30542-Straight tooth surface, 3055-Guide rod, 30551-Limiting block, 30552-Guide rod body. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0026] Please refer to the appendix. Figure 1 and appendix Figure 2 As shown, this embodiment provides an anti-unwinding device 10 for unwinding aluminum coils, including an unwinder body 100, an unwinding shaft 200, and an anti-unwinding mechanism 300. The unwinding shaft 200 extends horizontally outward from one side of the unwinder body 100.

[0027] The anti-unwinding mechanism 300 includes a drive unit 301, a first connecting arm 302, a second connecting arm 303, a limiting mechanism 305, and a pressure roller 304. The drive unit 301 is installed at the bottom end of the uncoiler body 100 and is used to provide power. In some embodiments, the drive unit 301 is a hydraulic cylinder to provide sufficient and stable driving force.

[0028] One end of the first connecting arm 302 is connected to the drive unit 301, and the other end of the first connecting arm 302 is hinged to one end of the second connecting arm 303. The other end of the second connecting arm 303 is connected to the pressure roller 304, and the pressure roller 304 is rotatably mounted on the other end of the second connecting arm 303.

[0029] See attached document Figure 1 As shown, the drive unit 301 actuates (e.g., the piston rod of a hydraulic cylinder pushes outward), driving the second connecting arm 303 to flip and press down via the first connecting arm 302, causing the pressure roller 304 to press tightly against the upper part of the outer circumferential surface of the aluminum coil 20, with the aluminum coil 20 placed on the unwinding shaft 200. A limiting mechanism 305 is provided on the second connecting arm 303. The limiting mechanism 305 is used to prevent the pressure roller 304 from detaching from the outer circumferential surface of the aluminum coil 20. That is, when the force released during the unwinding process of the aluminum coil 20 exceeds the clamping force applied by the pressure roller 304, causing the aluminum coil 20 to push open the pressure roller 304 and become unwound, the presence of the limiting mechanism 305 prevents the pressure roller 304 from being pushed open by the suddenly unwound aluminum coil 20, allowing the pressure roller 304 to stably press the aluminum coil 20 to prevent it from loosening.

[0030] Combined with reference to the appendix Figure 2 and attached Figure 3 As shown, in this embodiment, the limiting mechanism 305 includes a limiting turntable 3054, a limiting member 3053, and a mounting base 3051. The limiting turntable 3054 is fixedly installed on the second connecting arm 303 at one end that is hinged to the first connecting arm 302, for example, by means of a pin. The limiting turntable 3054 can rotate synchronously with the second connecting arm 303.

[0031] The outer circumferential surface of the limiting turntable 3054 has multiple continuously arranged gear teeth along the circumferential direction. The mounting base 3051 is fixedly mounted on the uncoiling machine body 100. The limiting member 3053 is mounted on the bottom end of the mounting base 3051. The limiting member 3053 and the mounting base 3051 form a sliding connection that can be raised and lowered. The bottom end of the limiting member 3053 has helical teeth that lock with the gear teeth.

[0032] The limiting member 3053 forms a liftable sliding connection with the mounting base 3051, meaning the limiting member 3053 is vertically and movably mounted on the mounting base 3051. When loading the aluminum coil 20 onto the unwinding shaft 200, the pressure roller 304 needs to be raised. This requires the second connecting arm 303 to rotate in the opposite direction, causing the end of the second connecting arm 303 on which the pressure roller 304 is mounted to rise. During the reverse rotation of the second connecting arm 303, the limiting turntable 3054 mounted on the second connecting arm 303 also rotates in the opposite direction synchronously. At this point, the limiting member 3053 needs to disengage from the gear teeth to unlock. After the aluminum coil 20 is installed and placed on the uncoiling shaft 200, the second connecting arm 303 is rotated in the forward direction, causing the second connecting arm 303 to drive the pressure roller 304 to move down and press against the upper outer circumferential surface of the aluminum coil 20, thus pressing the aluminum coil 20. At the same time, the helical teeth at the bottom end of the limiting member 3053 also descend and insert into the gear teeth on the limiting turntable 3054.

[0033] See attached document Figure 1 and attached Figure 2 As shown, during the unwinding process, the aluminum coil 20 gradually shrinks in size as it is unwound from the uncoiler 200. The pressure roller 304 also moves downwards as the aluminum coil shrinks, ensuring it remains in contact with the upper part of the outer circumference of the aluminum coil. During this downward movement, the second connecting arm 303 rotates and descends synchronously. At this time, the limiting turntable 3054 mounted on the second connecting arm 303 also rotates. Since the limiting turntable 3054 rotates in the forward direction (see attached diagram),... Figure 2 As shown, the bottom end of the limiting member 3053 will automatically slide from the upper gear on the limiting turntable 3054 and insert into the lower gear, always ensuring that the bottom end of the limiting member 3053 is locked in the gear on the limiting turntable. Even when the force of releasing the aluminum plate exceeds the pressing force applied by the drive unit 301, the aluminum coil 20 can still be fixed and will not unwind.

[0034] See attached document Figure 2 and attached Figure 3As shown, the limiting mechanism 305 also includes a spring 3052 and a guide rod 3055. The guide rod 3055 and the mounting base 3051 form a vertical sliding connection. The limiting member 3053 is fixedly installed at the bottom end of the guide rod 3055. The spring 3052 is wound around the outer circumference of the guide rod 3055. The spring 3052 is compressed between the bottom end face of the mounting base 3051 and the upper end face of the limiting member 3053. The spring 3052 is provided so that when the bottom end of the limiting member 3053 is pushed upward by the forward-rotating limiting turntable 3054, the limiting member 3053 can quickly and timely extend downward under the downward force applied by the spring 3052 (in the compressed state), so that the limiting member 3053 can be inserted into the downward moving gear teeth on the limiting turntable 3054 in a timely manner.

[0035] See attached document Figure 4 As shown, the mounting base 3051 has a vertically arranged sliding groove, and a cavity 30511 connected to it is provided above the sliding groove. The opening size of the cavity 30511 is larger than the opening size of the sliding groove. The guide rod 3055 includes a guide rod body 30552 and a limiting block 30551. The limiting block 30551 is located at the top of the guide rod body 30552. The outer dimensions of the limiting block 30551 are larger than the outer dimensions of the guide rod body 30552. The guide rod is slidably installed in the sliding groove, the limiting block 30551 is slidably installed in the cavity 30511, and the limiting member 3053 is fixedly installed at the bottom end of the guide rod body 30552.

[0036] The outer dimensions of the limiting block 30551 are larger than the dimensions of the slide groove, so that the limiting block 30551 will not slide down from the slide groove, thus ensuring that the guide rod will not detach from the mounting base 3051 during the process of the guide rod moving up and down along the mounting base 3051. At the same time, a cavity 30511 is provided above the slide groove. The existence of the cavity 30511 allows the limiting block 30551 to move up and down along the cavity 30511, thus ensuring that the limiting block 30551 can move up and down synchronously with the guide rod body 30552.

[0037] See attached document Figure 3 As shown, in this embodiment, the gear teeth include a helical tooth surface 30541 and a straight tooth surface 30542. The bottom end of the straight tooth surface 30542 is vertically mounted on the bottom end of the helical tooth surface 30541. The bottom end of the limiting member 3053 includes an inclined portion 30531 that matches the helical tooth surface 30541 and a locking portion 30532 that matches the straight tooth surface 30542.

[0038] See attached document Figure 1 and attached Figure 3As shown, when the drive unit 301 presses down to rotate in the direction of pressing the aluminum coil, the helical tooth surface 30541 of the gear teeth and the inclined portion 30531 of the limiting member 3053 push the limiting member 3053 upward, and the second connecting arm 303 can rotate.

[0039] On the other hand, when the aluminum coil begins to loosen and the second connecting arm 303 of the drive unit 301 is pushed open and the second connecting arm 303 is subjected to force in the opposite direction, the vertical surface of the gear teeth is locked in the locking part 30532 of the limiting member 3053, thereby suppressing the reverse rotation of the second connecting arm 303.

[0040] To suppress the release force of the aluminum coil, the helical tooth surface 30541 of the gear teeth has an inclination angle of 25 to 60 degrees relative to the horizontal line, and the straight tooth surface 30542 has a height of 10 to 50 mm.

[0041] With the structure described above, this solution can stably press the aluminum coil to prevent it from loosening. Even if the instantaneous pressing force is insufficient, it can still solve the problem that the force released by the aluminum coil exceeds the clamping force applied by the pressure roller 304, causing the aluminum coil to open the pressure roller 304 and become uncoiled. It can also prevent the occurrence of safety accidents caused by the sudden loosening of the aluminum coil.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "Above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top," and "on the surface" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature, and therefore should not be construed as a limitation of this utility model.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A device for preventing uncoiling of aluminum coils, comprising an uncoiler body and an uncoiler shaft, the uncoiler shaft extending horizontally outward from one side of the uncoiler body, characterized in that, It also includes an anti-unwinding mechanism, which includes a drive unit, a first connecting arm, a second connecting arm, a limiting mechanism, and a pressure roller. One end of the first connecting arm is connected to the drive unit, and the other end of the first connecting arm is hinged to one end of the second connecting arm. The other end of the second connecting arm is connected to the pressure roller, and the pressure roller is rotatably mounted on the other end of the second connecting arm. The limiting mechanism is disposed on the second connecting arm and is used to prevent the pressure roller from detaching from the outer circumference of the aluminum coil.

2. The anti-unwinding device for aluminum coil unwinding according to claim 1, characterized in that, The limiting mechanism includes a limiting turntable, a limiting component, and a mounting base. The limiting turntable is fixedly mounted on the second connecting arm at one end, which is hinged to the first connecting arm. The outer circumferential surface of the limiting turntable has a plurality of continuously arranged gear teeth along the circumferential direction. The mounting base is fixedly mounted on the uncoiling machine body. The limiting component is mounted on the bottom end of the mounting base. The limiting component and the mounting base form a sliding connection that can be raised and lowered. The bottom end of the limiting component has helical teeth that engage with the gear teeth.

3. The anti-unwinding device for aluminum coil unwinding according to claim 2, characterized in that, The limiting mechanism further includes a spring and a guide rod. The guide rod is slidably connected to the mounting base in the vertical direction. The limiting member is fixedly installed at the bottom end of the guide rod. The spring is wound around the outer circumferential surface of the guide rod and compressed between the bottom end surface of the mounting base and the upper end surface of the limiting member.

4. The anti-unwinding device for aluminum coil unwinding according to claim 3, characterized in that, The mounting base has a vertically arranged sliding groove, and a cavity communicating with the sliding groove is provided above it. The opening size of the cavity is larger than the opening size of the sliding groove. The guide rod includes a guide rod body and a limiting block. The limiting block is located at the top of the guide rod body, and the outer dimensions of the limiting block are larger than the outer dimensions of the guide rod body. The guide rod is slidably installed in the sliding groove, the limiting block is slidably installed in the cavity, and the limiting element is fixedly installed at the bottom end of the guide rod body.

5. A device for preventing uncoiling of aluminum coils according to any one of claims 2 to 4, characterized in that, The gear teeth include helical tooth surfaces and straight tooth surfaces. The bottom end of the straight tooth surface is vertically mounted to the bottom end of the helical tooth surface. The bottom end of the limiting member includes an inclined portion that matches the helical tooth surface and a locking portion that matches the straight tooth surface.

6. The anti-unwinding device for aluminum coil unwinding according to claim 1, characterized in that, The drive unit uses a hydraulic cylinder.

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