A kind of unwinding machine reel clamping structure

Abstract

This utility model belongs to the field of unwinding machine technology, specifically a drum clamping structure for an unwinding machine, including an unwinding frame; a motor is fixedly connected to one side of the unwinding frame, a stop block is fixedly connected to the middle of the motor, an unwinding shaft is provided on one side of the stop block, the unwinding shaft is fixedly connected to the motor, the stop block, the unwinding shaft is rotatably connected to the unwinding frame, multiple elastic plates are fixedly connected to the outside of the unwinding shaft, a spring is fixedly connected to the bottom of the elastic plates, and one end of the spring is fixedly connected to the unwinding shaft. By setting the elastic plates and springs to expand the elastic dimension of the unwinding shaft, the unwinding shaft can adapt to drums of different sizes. The elastic plates and springs clamp the inner wall of the drum, so that the drum and the unwinding shaft fit tightly together, reducing the axial sliding or radial jump of the drum along the unwinding shaft, which leads to material tension fluctuations and affects production quality.

Description

Technical Field

[0001] This utility model belongs to the field of unwinding machine technology, specifically an unwinding machine drum clamping structure. Background Technology

[0002] Unwinding machines are indispensable pieces of equipment in industrial production processes, primarily used to unwind materials wound into a cylindrical shape. These materials are diverse, including paper, plastic film, metal strips, and other types of strip materials. The main function of an unwinding machine is to smoothly and orderly unwind these cylindrical materials for subsequent processing or use.

[0003] In the operation of an unwinding machine, drum clamping is a crucial step. Drum clamping refers to the process of securely fixing both ends of the drum or its central axis to the rotating parts of the unwinding machine through mechanical devices or hydraulic systems. This operation effectively prevents unnecessary axial or radial movement of the drum when it rotates at high speed or is subjected to external forces. Axial movement refers to the forward and backward movement of the drum along its axis, while radial movement refers to the left and right movement of the drum along a direction perpendicular to its axis. By ensuring the stability of the drum during unwinding, wrinkles, breaks, or other forms of damage to the material can be avoided during the unfolding process, thereby ensuring the smooth progress of the production process and the quality of the final product.

[0004] In the existing technology, due to the different sizes of the rolls, the device used to clamp the rolls must be changed according to the specific size of the rolls; this leads to the need to frequently replace rolls of different diameters or widths during the production process, and traditional fixed clamping devices are difficult to meet this requirement due to their poor adaptability.

[0005] Therefore, this utility model provides a winding drum clamping structure for an unwinding machine. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The unwinding machine drum clamping structure of this utility model includes an unwinding machine frame; a motor is fixedly connected to one side of the unwinding machine frame, a stop block is fixedly connected to the middle of the motor, an unwinding shaft is provided on one side of the stop block, the unwinding shaft is fixedly connected to the motor, the stop block, the unwinding shaft, and the unwinding machine frame are rotatably connected, and multiple elastic plates are fixedly connected to the outside of the unwinding shaft. A spring is fixedly connected to the bottom of the elastic plates, and one end of the spring is fixedly connected to the unwinding shaft. During operation, the drum is placed on the unwinding shaft, and the drum is clamped in from one end of the unwinding shaft. Pressing the elastic plates, the elastic plates are placed inside the drum. The elastic plates are squeezed and move closer to the unwinding shaft, and the springs are compressed until the drum is completely fitted onto the outside of the unwinding shaft. The pressure on the elastic plates and springs reacts to the inner wall of the drum, applying pressure to fix the drum, achieving the effect of tightening the drum. The drum and unwinding shaft are tightly connected. Then, the motor is started, driving the stop block and unwinding shaft to rotate. The stop block abuts against the edge of the drum, reducing the chance of the drum detaching from the unwinding shaft. Without the elastic sheet and spring to clamp and secure it, loosening can occur. The unwinding shaft drives the drum to rotate for unwinding. After unwinding, the elastic sheet is pressed again to reduce its clamping action on the drum, allowing the drum to be removed from the unwinding shaft. The elastic sheet and spring concentrically clamp the drum and unwinding shaft, reducing eccentricity that could affect unwinding. By increasing the elasticity of the unwinding shaft with the elastic sheet and spring, it can accommodate drums of different sizes. The elastic sheet and spring clamp the inner wall of the drum, ensuring a tight fit between the drum and the unwinding shaft, reducing axial sliding or radial movement of the drum along the unwinding shaft, which could cause material tension fluctuations and affect production quality.

[0008] Preferably, the elastic sheet has two screws on one side, with a handle fixedly connected to the top of each screw and a fixing groove at the bottom. The fixing groove is located on the surface of the unwinding shaft, and the screws are threadedly connected to the fixing groove. During operation, holes are opened at both ends of the drum, with the openings corresponding to the fixing grooves. The screws pass through the openings, and by rotating the handle, the screws are threadedly connected to the fixing grooves. The handle blocks the openings on the drum, further securing the drum. Combined with the elastic sheet and spring, the drum is clamped and secured on both the inner and outer sides, making the connection between the drum and the unwinding shaft tighter and thus improving unwinding efficiency. By setting the screws, handle, and fixing groove, the outer side of the drum is fixed, making the clamping between the drum and the unwinding shaft more secure and reducing the possibility of the drum loosening.

[0009] Preferably, one end of the unwinding shaft is provided with a fixing plate, and a locking block is fixedly connected to one side of the fixing plate. A locking groove is opened at the end of the unwinding shaft, and the locking block engages with the locking groove. During operation, both the locking block and the locking groove are rectangular. The locking block and the locking groove engage to fix the fixing plate and the unwinding shaft together. The fixing plate, together with the stop block, limits the movement of the drum on both sides, reducing the possibility of the drum detaching from the unwinding shaft. The fixing plate rotates with the unwinding shaft. With the cooperation of the locking block and the locking groove, the phenomenon of the fixing plate spinning freely is reduced.

[0010] Preferably, a support plate is provided on the other side of the fixed plate. The support plate is fixedly connected to the unwinding frame. A cylinder is fixedly connected to the middle of the support plate. One end of the cylinder is rotatably connected to the fixed plate. During operation, the cylinder pushes and pushes out to drive the fixed plate to move, thereby realizing the engagement and disengagement of the fixed plate and the unwinding shaft. The rotatable connection between the fixed plate and the cylinder will not hinder the rotation of the unwinding shaft. With the cooperation of the locking block and the locking groove, the fixed plate will rotate with the rotation of the unwinding shaft.

[0011] Preferably, the top of the elastic sheet is provided with an anti-slip pad, which is fixedly connected to the elastic sheet. During operation, the anti-slip pad increases the friction between the elastic sheet and the inner wall of the drum, reducing the rotation of the drum.

[0012] Preferably, a buffer pad is provided on one side of the spring. The buffer pad is fixedly connected to the elastic sheet. During operation, the buffer pad cushions the bottom of the elastic sheet, reducing the excessive force that could damage the elastic sheet and spring.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The unwinding machine drum clamping structure of this utility model expands the elastic dimension of the unwinding shaft by setting elastic plates and springs, so that the unwinding shaft can adapt to drums of different sizes. The elastic plates and springs clamp the inner wall of the drum, so that the drum and the unwinding shaft fit tightly together, reducing the axial sliding or radial jump of the drum along the unwinding shaft, which leads to material tension fluctuations and affects production quality.

[0015] 2. The unwinding machine drum clamping structure of this utility model, by setting screws, handles and fixing grooves, fixes the outside of the drum, making the drum and the unwinding shaft more firmly clamped and reducing the possibility of the drum loosening. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the unwinding frame in this utility model;

[0019] Figure 3 This is a schematic diagram of the unwinding shaft in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixing plate in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the elastic sheet in this utility model;

[0022] In the diagram: 1. Unwinding frame; 11. Motor; 12. Stop block; 13. Unwinding shaft; 14. Elastic sheet; 15. Spring; 2. Screw; 21. Handle; 22. Fixing groove; 3. Fixing plate; 31. Locking block; 32. Locking groove; 4. Support plate; 41. Cylinder; 5. Anti-slip pad; 6. Buffer pad. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 3As shown in the figure, the unwinding machine drum clamping structure of this utility model embodiment includes an unwinding machine frame 1; a motor 11 is fixedly connected to one side of the unwinding machine frame 1, a stop block 12 is fixedly connected to the middle of the motor 11, an unwinding shaft 13 is provided on one side of the stop block 12, the unwinding shaft 13 is fixedly connected to the motor 11, the stop block 12, the unwinding shaft 13 are rotatably connected to the unwinding machine frame 1, and a plurality of elastic plates 14 are fixedly connected to the outer side of the unwinding shaft 13, and springs 15 are fixedly connected to the bottom of the elastic plates 14. One end of the spring 15 is fixedly connected to the unwinding shaft 13. During operation, the drum is placed on the unwinding shaft 13, and the drum is inserted from one end of the unwinding shaft 13. The elastic sheet 14 is pressed and placed inside the drum. The elastic sheet 14 is compressed and moves closer to the unwinding shaft 13, compressing the spring 15 until the drum is completely fitted onto the outside of the unwinding shaft 13. The pressure on the elastic sheet 14 and the spring 15 reacts to the inner wall of the drum, applying pressure to fix the drum, achieving the effect of fastening the drum and ensuring that the drum is securely attached to the unwinding shaft 13. The reel 13 is tightly engaged. Then, the motor 11 is started, driving the stop block 12 and the unwinding shaft 13 to rotate. The stop block 12 abuts against the edge of the drum, reducing the chance of the drum detaching from the unwinding shaft 13. This reduces the clamping effect of the elastic sheet 14 and spring 15, potentially causing loosening. The unwinding shaft 13 drives the drum to rotate for unwinding. After unwinding, the elastic sheet 14 is pressed again to reduce its clamping action on the drum. The drum can then be removed from the unwinding shaft 13. 5. The drum and the unwinding shaft 13 can be concentrically clamped to reduce the possibility of eccentricity between the drum and the unwinding shaft 13, which would affect the unwinding process. By setting elastic plates 14 and springs 15, the elastic dimension of the unwinding shaft 13 is expanded, so that the unwinding shaft 13 can be adapted to drums of different sizes. The elastic plates 14 and springs 15 clamp the inner wall of the drum, so that the drum and the unwinding shaft 13 fit tightly together, reducing the possibility of the drum sliding axially or jumping radially along the unwinding shaft 13, which would cause material tension fluctuations and affect production quality.

[0025] like Figures 1 to 3 As shown, two screws 2 are provided on one side of the elastic sheet 14. A handle 21 is fixedly connected to the top of the screw 2, and a fixing groove 22 is provided at the bottom of the screw 2. The fixing groove 22 is opened on the surface of the unwinding shaft 13. The screw 2 is threadedly connected to the fixing groove 22. During operation, holes are opened at both ends of the drum, and the openings correspond to the fixing grooves 22. The screw 2 passes through the openings. By rotating the handle 21, the screw 2 is threadedly connected to the fixing groove 22. The handle 21 blocks the openings on the drum, which further fixes the drum. Together with the elastic sheet 14 and the spring 15, the drum is clamped and fixed on both the inner and outer sides, making the drum and the unwinding shaft 13 more tightly connected, thereby improving the unwinding efficiency. By setting the screw 2, handle 21, and fixing groove 22, the outer side of the drum is fixed, making the drum and the unwinding shaft 13 more firmly clamped and reducing the possibility of the drum loosening.

[0026] like Figures 1 to 4 As shown, a fixing plate 3 is provided at one end of the unwinding shaft 13, and a locking block 31 is fixedly connected to one side of the fixing plate 3. A locking groove 32 is provided at the end of the unwinding shaft 13. The locking block 31 and the locking groove 32 are engaged. During operation, both the locking block 31 and the locking groove 32 are rectangular. The locking block 31 and the locking groove 32 engage, so that the fixing plate 3 and the unwinding shaft 13 are fixed together. The fixing plate 3, together with the stop block 12, limits the two sides of the drum, reducing the situation where the drum is disengaged from the unwinding shaft 13. The fixing plate 3 rotates with the unwinding shaft 13. With the cooperation of the locking block 31 and the locking groove 32, the phenomenon of the fixing plate 3 spinning freely is reduced.

[0027] like Figures 1 to 4 As shown, a support plate 4 is provided on the other side of the fixed plate 3. The support plate 4 is fixedly connected to the unwinding frame 1. A cylinder 41 is fixedly connected to the middle of the support plate 4. One end of the cylinder 41 is rotatably connected to the fixed plate 3. During operation, the cylinder 41 pushes and pushes, driving the fixed plate 3 to move, thereby realizing the engagement and disengagement of the fixed plate 3 and the unwinding shaft 13. The fixed plate 3 is rotatably connected to the cylinder 41, which will not hinder the rotation of the unwinding shaft 13. With the cooperation of the locking block 31 and the locking groove 32, the fixed plate 3 will rotate with the rotation of the unwinding shaft 13.

[0028] like Figures 1 to 5 As shown, the top of the elastic sheet 14 is provided with an anti-slip pad 5, which is fixedly connected to the elastic sheet 14. During operation, the anti-slip pad 5 increases the friction between the elastic sheet 14 and the inner wall of the drum, reducing the rotation of the drum.

[0029] like Figures 1 to 5 As shown, a buffer pad 6 is provided on one side of the spring 15. The buffer pad 6 is fixedly connected to the elastic sheet 14. During operation, the buffer pad 6 buffers the bottom of the elastic sheet 14 to reduce the excessive force that may cause damage to the elastic sheet 14 and the spring 15.

[0030] Working principle: The drum is placed on the unwinding shaft 13, and the drum is inserted into the unwinding shaft 13 from one end. The elastic sheet 14 is pressed and placed inside the drum. The elastic sheet 14 is compressed and moves closer to the unwinding shaft 13, compressing the spring 15 until the drum is completely fitted onto the outside of the unwinding shaft 13. The pressure on the elastic sheet 14 and spring 15 reacts to the inner wall of the drum, applying pressure and fixing the drum, achieving a tight fit between the drum and the unwinding shaft 13. Then, the motor 11 is started, driving the stop block 12 and the unwinding shaft 13 to rotate. The stop block 12 abuts against the edge of the drum, reducing the chance of the drum detaching from the unwinding shaft 13. Without the clamping and fixing effect of the elastic sheet 14 and spring 15, loosening may occur, causing the unwinding shaft 13 to... The rotating drum performs the unwinding operation. After unwinding, press the elastic plate 14 again to reduce its clamping action on the drum, allowing the drum to be removed from the unwinding shaft 13. The elastic plate 14 and spring 15 concentrically clamp the drum and unwinding shaft 13, reducing eccentricity that could affect unwinding. By increasing the elasticity of the unwinding shaft 13 with the elastic plate 14 and spring 15, the unwinding shaft 13 can accommodate drums of different sizes. The elastic plate 14 and spring 15 clamp the inner wall of the drum, ensuring a tight fit between the drum and unwinding shaft 13, reducing axial sliding or radial movement of the drum along the unwinding shaft 13, which could cause material tension fluctuations and affect production quality. Holes are provided at both ends of the drum. The screw 2 passes through the opening in the corresponding fixing groove 22. Turning the handle 21 connects the screw 2 to the fixing groove 22. The handle 21 blocks the opening on the drum, further securing the drum. Combined with the elastic sheet 14 and spring 15, this clamps the drum on both the inner and outer sides, making the connection between the drum and the unwinding shaft 13 tighter and improving unwinding efficiency. By setting the screw 2, handle 21, and fixing groove 22, the outer side of the drum is fixed, making the clamping between the drum and the unwinding shaft 13 more secure and reducing the possibility of the drum loosening. The locking block 31 and the locking groove 32 are both rectangular. The locking block 31 engages with the locking groove 32, fixing the fixing plate 3 to the unwinding shaft 13. The fixing plate 3, in conjunction with the stop block 12, further secures the drum. Limiting devices are installed on both sides of the drum to reduce the possibility of the drum detaching from the unwinding shaft 13. The fixing plate 3 rotates with the unwinding shaft 13. With the cooperation of the locking block 31 and the locking groove 32, the phenomenon of the fixing plate 3 spinning freely is reduced. The cylinder 41 pushes and pushes, driving the fixing plate 3 to move, thereby realizing the engagement and disengagement of the fixing plate 3 with the unwinding shaft 13. The fixing plate 3 is rotatably connected to the cylinder 41 and will not obstruct the rotation of the unwinding shaft 13. With the cooperation of the locking block 31 and the locking groove 32, the fixing plate 3 will rotate with the unwinding shaft 13. The anti-slip pad 5 increases the friction between the elastic sheet 14 and the inner wall of the drum, reducing the possibility of the drum rotating. The buffer pad 6 buffers the bottom of the elastic sheet 14, reducing the possibility of excessive pressure on the elastic sheet 14, which could damage the elastic sheet 14 and the spring 15.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A kind of unwinding machine reel clamping structure, including unwinding machine frame (1);Its characterized in that: A motor (11) is fixedly connected to one side of the unwinding frame (1). A stop block (12) is fixedly connected to the middle of the motor (11). An unwinding shaft (13) is provided on one side of the stop block (12). The unwinding shaft (13) is fixedly connected to the motor (11). The stop block (12), the unwinding shaft (13), and the unwinding frame (1) are rotatably connected. Multiple elastic plates (14) are fixedly connected to the outside of the unwinding shaft (13). A spring (15) is fixedly connected to the bottom of the elastic plate (14). One end of the spring (15) is fixedly connected to the unwinding shaft (13).

2. The spool chucking structure of claim 1, wherein: Two screws (2) are provided on one side of the elastic sheet (14). A handle (21) is fixedly connected to the top of the screw (2). A fixing groove (22) is provided at the bottom of the screw (2). The fixing groove (22) is opened on the surface of the unwinding shaft (13). The screw (2) is threadedly connected to the fixing groove (22).

3. The spool chucking structure of claim 2, wherein: One end of the unwinding shaft (13) is provided with a fixing plate (3), and a locking block (31) is fixedly connected to one side of the fixing plate (3). A slot (32) is opened at the end of the unwinding shaft (13), and the locking block (31) engages with the slot (32).

4. The spool chucking structure of claim 3, wherein: The fixed plate (3) is provided with a support plate (4) on the other side. The support plate (4) is fixedly connected to the unwinding frame (1). A cylinder (41) is fixedly connected in the middle of the support plate (4). One end of the cylinder (41) is rotatably connected to the fixed plate (3).

5. A spool chucking arrangement for an unwinder as claimed in claim 4, characterised in that: The top of the elastic sheet (14) is provided with an anti-slip pad (5), and the anti-slip pad (5) is fixedly connected to the elastic sheet (14).

6. The unwinding machine drum clamping structure according to claim 5, characterized in that: A buffer pad (6) is provided on one side of the spring (15), and the buffer pad (6) is fixedly connected to the elastic sheet (14).

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