Copper strip uncoiling mechanism capable of braking

Abstract

The utility model discloses a copper strip uncoiling mechanism capable of braking, and belongs to the technical field of copper strip machining. The technical problem of copper strip uncoiling dragging is solved. According to the technical scheme, the device is characterized in that the device comprises a base, a main shaft and an uncoiling shaft, the main shaft is rotationally installed on the base, the uncoiling shaft is fixed to the main shaft, a main transmission wheel is fixed to the main shaft, a brake mechanism is further fixed to the base, and the brake mechanism comprises a bearing seat, a transmission shaft, a driven transmission wheel, a brake disc and a friction assembly; the transmission shaft is rotatably mounted on the bearing seat, the driven transmission wheel is fixed at one end of the transmission shaft, the driven transmission wheel is connected with the driving transmission wheel through the transmission belt, the brake disc is fixed at the other end of the transmission shaft, the brake disc is stressed and rubbed on the friction assembly, and the friction assembly adjusts friction pressure to control friction force. And unrolling and unlagging are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of copper strip manufacturing equipment, and in particular to a brakeable copper strip unwinding mechanism. Background Art

[0002] The copper strip unwinding mechanism, as the name implies, is a device specially used to smoothly and continuously unfold the rolled copper strip material for subsequent processing (such as shearing, stamping, welding, etc.).

[0003] Among them is the prior art, and its application number is: CN202321437775.6. The scheme provides a copper foil unwinding device, including a frame, a rotating mechanism, and an expansion shaft mechanism. The rotating mechanism is used to drive the unwinding of the copper foil roll, and the expansion shaft mechanism is used to clamp the inner cavity of the copper foil roll. The outer wall of the expansion shaft mechanism is provided with a limiting mechanism for limiting one end of the copper foil roll; the limiting mechanism includes a power assembly and a movable disk; the movable disk in the extended state is used to limit one end of the copper foil roll of different widths. When processing copper foil rolls of different widths, the utility model first adjusts the position of the movable disk according to the width of the copper foil roll, drives the movable disk to move in a horizontal position through the power assembly, and adjusts the position of the movable disk according to the actual width of the copper foil roll, thereby achieving the unwinding adjustment of copper foil rolls of different widths.

[0004] There are many existing unwinding mechanisms. The copper strip as a raw material is wound on a reel sleeve. The hollow reel sleeve can be sleeved on the unwinding shaft, and then the unwinding shaft can be rotated so that the copper strip can be pulled and stretched. However, for the unwinding of the copper strip, since the copper strip cannot be too loose during the unwinding process, the elasticity of the copper strip will expand like a coil spring (spring), which is not conducive to processing. Therefore, it is necessary to keep the reel sleeve of the copper strip in a brake state. Utility Model Content

[0005] In view of the above-mentioned shortcomings (problems) of the prior art, in order to achieve braking of the unwinding shaft and facilitate the stretching and unwinding of the copper strip, the present application provides a brakeable copper strip unwinding mechanism.

[0006] To achieve the above-mentioned purpose and other related purposes, the present application adopts the following technical scheme: a brakeable copper strip unwinding mechanism, comprising a base, a main shaft, and an unwinding shaft, the main shaft is rotatably mounted on the base, the unwinding shaft is fixed on the main shaft, a main drive wheel is fixed on the main shaft, a braking mechanism is also fixed on the base, the braking mechanism comprises a bearing seat, a transmission shaft, a slave drive wheel, a brake disc, and a friction assembly, the transmission shaft is rotatably mounted on the bearing seat, one end of the transmission shaft is fixed to the slave drive wheel, the slave drive wheel and the main drive wheel are connected by a transmission belt, the other end of the transmission shaft is fixed to the brake disc, the brake disc is subjected to friction force on the friction assembly, and the friction assembly adjusts the friction pressure to control the magnitude of the friction force.

[0007] Preferably, the friction assembly includes a fixed seat, a friction clamp, a friction block, and an adjusting bolt. The friction clamp is fixed on the fixed seat, the fixed seat is fixed on the base and close to the friction plate, the friction block is fixed on the two clamping surfaces of the clamping end of the friction clamp, the clamping end is clamped on both sides of the brake disc through the friction block, and the adjusting bolt is threadedly assembled on the rear end of the friction clamp and adjusts the opening size of the clamping end.

[0008] Preferably, a tensioning mechanism is fixed on the base, and the tensioning mechanism includes a tensioning frame, a first tensioning wheel, a second tensioning wheel, and an elastic seat. The tensioning frame is located at the transmission belt for rotatable installation of the first tensioning wheel, and the transmission belt is located in the wheel groove of the first tensioning wheel. The elastic seat is installed on the top of the tensioning frame by bolts and is rotatably connected to the second tensioning wheel. The second tensioning wheel is pressed on top of the transmission belt.

[0009] Preferably, the unwinding shaft comprises an inner disc, a shaft frame, a telescopic rod, a screw rod, an end plate and a movable claw;

[0010] The main shaft passes through the center of the inner disk and is fixed to the inner disk. The end of the main shaft is hollow and cooperates with the screw rod. The outer end of the screw rod is rotatably connected to the end plate through a bearing. One end of the telescopic rod is fixedly connected to the end plate. The telescopic rod is also fixedly connected to the shaft frame. The shaft frame is sleeved on the main shaft for axial movement, and multiple movable claws are evenly installed on the circumference of the shaft frame.

[0011] Preferably, two shaft frames are provided, four telescopic rods are provided, and one telescopic rod is fixed on a corner of the shaft frame.

[0012] Preferably, four movable claws are provided, each of which includes a limiting wheel, two connecting rods and an inner support plate; four limiting holes are provided on the inner disk, the two connecting rods are respectively pivoted on the two axle frames, the other two ends of the two connecting rods are respectively pivoted on the bottom of the inner support plate, a limiting rod is provided on the inner support plate, the limiting rod extends into the limiting hole and is rotatably connected to the limiting wheel at the end.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. It can provide braking during the unwinding process. Braking here mainly refers to the process of slowing down or stopping a moving object in some way. Since the unwinding shaft is forced to rotate during unwinding, it is not desirable to rotate it too easily, otherwise the unwinding will be too fast, causing the copper belt to drag. Therefore, it is necessary to use a braking mechanism to increase the resistance. Here, the transmission is carried out through a transmission belt, so as to control the unwinding speed by braking the brake disc.

[0015] 2. By adjusting the friction pressure, the friction force can be adjusted to control the braking effect;

[0016] 3. The unwinding shaft can adjust the diameter of the inner support, which makes it convenient for users to place copper strip coils with different inner diameters, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0018] Figure 2 yes Figure 1 A magnified view of part A;

[0019] Figure 3 It is a structural schematic diagram of another viewing angle of an embodiment of the present application;

[0020] Figure 4 yes Figure 3 Enlarged view of part B.

[0021] Description of main reference numerals:

[0022] 1. Base; 2. Main shaft; 3. Unwinding shaft; 31. Inner disk; 311. Limiting hole; 32. Shaft frame; 33. Telescopic rod; 34. Screw rod; 35. End plate; 36. Movable claw; 361. Limiting wheel; 362. Connecting rod; 363. Inner support plate; 364. Limiting rod; 4. Main transmission wheel; 5. Braking mechanism; 51. Bearing seat; 52. Transmission shaft; 53. Slave transmission wheel; 54. Brake disc; 55. Friction assembly; 551. Fixed seat; 552. Friction clamp; 553. Friction block; 554. Adjusting bolt; 6. Transmission belt; 7. Tensioning mechanism; 71. Tensioning frame; 72. First tensioning wheel; 73. Second tensioning wheel; 74. Elastic seat; 8. Baffle. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0025] The specific implementation methods of the present application will be further described below in conjunction with the accompanying drawings.

[0026] Example:

[0027] The present application embodiment discloses a brakeable copper strip unwinding mechanism, referring to Figure 1 and Figure 2 As shown, it includes a base 1, a main shaft 2, and an unwinding shaft 3. The main shaft 2 is rotatably mounted on the base 1, and this rotatable mounting includes an assembly realized by a bearing.

[0028] The unwinding shaft 3 is fixed on the main shaft 2 , so that the unwinding shaft 3 can rotate synchronously with the main shaft 2 .

[0029] A main transmission wheel 4 is fixed on the main shaft 2, and a brake mechanism 5 is also fixed on the base 1. The brake mechanism 5 includes a bearing seat 51, a transmission shaft 52, a slave transmission wheel 53, a brake disc 54, and a friction assembly 55. The transmission shaft 52 is rotatably mounted on the bearing seat 51, one end of the transmission shaft 52 is fixed to the slave transmission wheel 53, and the slave transmission wheel 53 and the main transmission wheel 4 are connected through a transmission belt 6. The other end of the transmission shaft 52 is fixed to the brake disc 54, and the brake disc 54 is subjected to friction on the friction assembly 55, and the friction assembly 55 adjusts the friction pressure to control the magnitude of the friction force.

[0030] The rotation of the main shaft 2 has reached a limit (resistance), and the magnitude of the resistance depends on the magnitude of the friction force generated by the brake mechanism 5. The main transmission wheel 4 and the slave transmission wheel 53 can be pulleys, gears or sprockets.

[0031] exist Figure 2 As can be seen, the friction assembly 55 includes a fixed seat 551, a friction clamp 552, a friction block 553, and an adjusting bolt 554. The friction clamp 552 is fixed on the fixed seat 551, and the fixed seat 551 is fixed on the base 1 and close to the friction plate. The friction block 553 is fixed on the two clamping surfaces of the clamping end of the friction clamp 552. The clamping end is clamped on both sides of the brake disc 54 through the friction block 553. The adjusting bolt 554 is threadedly assembled on the rear end of the friction clamp 552 and adjusts the opening size of the clamping end. The friction clamp 552 can be understood by a simple clamp structure. Due to its pivoted rotating structure, the opening and closing of the opening can be controlled by the adjusting bolt 554, thereby realizing the control of the friction force. Of course, if the friction block 553 is worn, it should be regularly inspected and replaced.

[0032] Based on the above structure, further, a tensioning mechanism 7 is fixed on the base 1. The tensioning mechanism 7 includes a tensioning frame 71, a first tensioning wheel 72, a second tensioning wheel 73, and an elastic seat 74. The tensioning frame 71 is located at the transmission belt 6 for the first tensioning wheel 72 to be rotatably installed. The transmission belt 6 is located in the wheel groove of the first tensioning wheel 72. The elastic seat 74 is installed on the top of the tensioning frame 71 by bolts and is rotatably connected to the second tensioning wheel 73. The second tensioning wheel 73 is pressed on the transmission belt 6.

[0033] Those skilled in the art will appreciate that the first tensioning wheel 72 can limit the transmission belt 6 to prevent the transmission belt 6 from deviating, and the pressure of the second tensioning wheel 73 can keep the transmission belt 6 in a tensioned state and prevent it from falling off easily.

[0034] On the other hand, reference Figure 3 and Figure 4 As shown, the unwinding shaft 3 includes an inner disk 31, a shaft frame 32, a telescopic rod 33, a screw 34, an end plate 35 and a movable claw 36. The main shaft 2 passes through the center of the inner disk 31 and is fixed to the inner disk 31. The end of the main shaft 2 is hollow and cooperates with the screw 34. The outer end of the screw 34 is rotatably connected to the end plate 35 through a bearing. One end of the telescopic rod 33 is fixedly connected to the end plate 35. The telescopic rod 33 is also fixedly connected to the shaft frame 32. The shaft frame 32 is sleeved on the main shaft 2 for axial movement. A plurality of movable claws 36 are evenly installed on the circumference of the shaft frame 32.

[0035] Two shaft frames 32 are provided, and four telescopic rods 33 are provided, and one telescopic rod 33 is fixed on a corner of the shaft frame 32. This structure can improve the stability of the shaft frame 32 movement, and can also maintain the stable supporting effect of the movable claw 36 at the same time.

[0036] Four movable claws 36 are provided, and each movable claw 36 includes a limiting wheel 361, two connecting rods 362 and an inner support plate 363; four limiting holes 311 are provided on the inner disk 31, and the two connecting rods 362 are respectively pivoted on the two shaft frames 32, and the other two ends of the two connecting rods 362 are respectively pivoted on the bottom of the inner support plate 363, and a limiting rod 364 is provided on the inner support plate 363, and the limiting rod 364 extends into the limiting hole 311 and is rotatably connected to the limiting wheel 361 at the end.

[0037] The working process is as follows: by rotating the screw rod 34, the end of the screw rod 34 is a square structure, so it can be driven by a wrench tool or an electric drill tool. After the screw rod 34 is driven to rotate, the screw rod 34 will move (telescope) along the axis direction of the main shaft 2, and the telescopic rod 33, the end plate 35, and the shaft frame 32 are relatively fixed and also move axially with the screw rod 34. At this time, the movable claw 36 expands or contracts under the action of the connecting rod 362. Since the limiting hole 311 is opened on the inner side plate, it cooperates with the limiting wheel 361, so that the multiple movable claws 36 will not move circumferentially.

[0038] In addition, a baffle plate 8 is fixed near the end of the inner support plate 363 and is fixed with bolts. It can be disassembled and assembled, which can further restrict the material and prevent it from escaping.

[0039] It can be seen that the material (copper strip roll) can be placed on the unwinding shaft 3, and the present mechanism can provide braking during the unwinding process. Braking here mainly refers to the process of slowing down or stopping a moving object in some way. Since the unwinding shaft 3 is forced to rotate during unwinding, it is not desirable to rotate it too easily, otherwise the unwinding will be too fast, causing the copper strip to drag. Therefore, it is necessary to use the braking mechanism 5 to increase the resistance, which is transmitted here through the transmission belt 6, so as to control the unwinding speed by braking the brake disc 54.

[0040] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A brakeable copper strip unwinding mechanism, comprising a base (1), a main shaft (2), and an unwinding shaft (3), wherein the main shaft (2) is rotatably mounted on the base (1), and the unwinding shaft (3) is fixed on the main shaft (2), characterized in that: A main transmission wheel (4) is fixed on the main shaft (2), and a brake mechanism (5) is also fixed on the base (1). The brake mechanism (5) comprises a bearing seat (51), a transmission shaft (52), a slave transmission wheel (53), a brake disc (54), and a friction assembly (55). The transmission shaft (52) is rotatably mounted on the bearing seat (51), one end of the transmission shaft (52) is fixed to the slave transmission wheel (53), the slave transmission wheel (53) and the main transmission wheel (4) are connected via a transmission belt (6), and the other end of the transmission shaft (52) is fixed to the brake disc (54), the brake disc (54) is subjected to friction force on the friction assembly (55), and the friction assembly (55) adjusts the friction pressure to control the magnitude of the friction force.

2. The brakeable copper strip unwinding mechanism according to claim 1, characterized in that: The friction assembly (55) comprises a fixed seat (551), a friction clamp (552), a friction block (553), and an adjusting bolt (554); the friction clamp (552) is fixed on the fixed seat (551); the fixed seat (551) is fixed on the base (1) and close to the friction plate; the friction block (553) is fixed on two clamping surfaces of the clamping end of the friction clamp (552); the clamping end is clamped on two sides of the brake disc (54) through the friction block (553); the adjusting bolt (554) is threadedly assembled on the rear end of the friction clamp (552) and adjusts the opening size of the clamping end.

3. The brakeable copper strip unwinding mechanism according to claim 2, characterized in that: A tensioning mechanism (7) is fixed on the base (1), and the tensioning mechanism (7) comprises a tensioning frame (71), a first tensioning wheel (72), a second tensioning wheel (73), and an elastic seat (74). The tensioning frame (71) is located at the transmission belt (6) for rotatably mounting the first tensioning wheel (72), and the transmission belt (6) is located in the wheel groove of the first tensioning wheel (72). The elastic seat (74) is installed on the top of the tensioning frame (71) by bolts and is rotatably connected to the second tensioning wheel (73), and the second tensioning wheel (73) is pressed on the transmission belt (6).

4. The brakeable copper strip unwinding mechanism according to claim 1, characterized in that: The unwinding shaft (3) comprises an inner disk (31), a shaft frame (32), a telescopic rod (33), a screw rod (34), an end plate (35) and a movable claw (36); The main shaft (2) passes through the center of the inner disk (31) and is fixed to the inner disk (31); the end of the main shaft (2) is hollow and cooperates with the screw rod (34); the outer end of the screw rod (34) is rotatably connected to the end plate (35) through a bearing; one end of the telescopic rod (33) is fixedly connected to the end plate (35); the telescopic rod (33) is also fixedly connected to the shaft frame (32); the shaft frame (32) is sleeved on the main shaft (2) for axial movement; and a plurality of movable claws (36) are evenly installed on the circumference of the shaft frame (32).

5. The brakeable copper strip unwinding mechanism according to claim 4, characterized in that: Two shaft frames (32) are provided, and four telescopic rods (33) are provided, and one telescopic rod (33) is fixed on a corner of the shaft frame (32).

6. The brakeable copper strip unwinding mechanism according to claim 5, characterized in that: Four movable claws (36) are provided, and each movable claw (36) comprises a limiting wheel (361), two connecting rods (362) and an inner supporting plate (363); four limiting holes (311) are provided on the inner plate (31); the two connecting rods (362) are respectively pivotally connected to the two shaft frames (32); the other two ends of the two connecting rods (362) are respectively pivotally connected to the bottom of the inner supporting plate (363); a limiting rod (364) is provided on the inner supporting plate (363); the limiting rod (364) extends into the limiting hole (311) and is rotatably connected to the limiting wheel (361) at the end.

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