A multi-layer web fixing device

Abstract

This invention relates to the technical field of stamping parts production, specifically disclosing a multi-layer coil fixing device, including a fixing plate, a through hole in the center of the fixing plate, a support tube slidably disposed in the through hole, multiple sliding holes in the side wall of the fixing plate, and multiple support components disposed in the side wall of the fixing plate; the sliding holes are connected to the through holes; one support component is disposed at one sliding hole; the support component includes a sleeve fixedly connected to the side of the fixing plate, a push rod slidably disposed in the sleeve, a spring fixedly connected to one end of the push rod disposed in the sleeve, and a pull rope fixedly connected to one end of the push rod disposed in the sleeve; the end of the spring away from the push rod is fixedly connected to the inner wall of the sliding hole, and the end of the pull rope away from the push rod is fixedly connected to the outer wall of the support tube. This multi-layer coil fixing device can effectively fix multiple types of coils simultaneously.

Description

Technical Field

[0001] This invention relates to the technical field of stamping parts production, and more specifically, to a multi-layer coil fixing device. Background Technology

[0002] In stamping production, stable feeding of coiled material is crucial for ensuring both efficiency and quality. Metal or plastic coils need to be precisely fed into the stamping press via a fixing device, and different workpieces have varying requirements for the width, thickness, and inner diameter of the coiled material. In traditional production, a single fixing device typically accommodates only one type of coiled material. However, with the intelligent upgrading of the manufacturing industry, multi-station automated production lines have promoted the widespread adoption of multi-line operation modes, where multiple coils are simultaneously fixed on the same device to improve efficiency.

[0003] However, parallel operation of multiple rolls faces significant challenges. Due to the lack of a standardized inner diameter for the rolls, it's difficult to perfectly align the shafts of different roll types with the fixing device's shaft, easily leading to a series of problems: from minor issues like unwinding guide deviation causing feed track misalignment, to more serious issues like roll ejection, unraveling, and even die jamming and sheet tearing. Statistics show that such problems significantly increase production line downtime. While traditional air shafts can partially solve the fixing problem, they suffer from drawbacks such as short airbag lifespan and the need for an additional air source. Therefore, a fixing device capable of simultaneously accommodating multiple different roll types needs to be designed. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-layer roll fixing device that can effectively fix multiple types of rolls simultaneously.

[0005] The present invention is achieved through the following technical solution: The multi-layer roll material fixing device of the present invention includes a fixing plate, a through hole opened in the middle of the fixing plate, a support tube slidably disposed in the through hole, a plurality of sliding holes opened in the side wall of the fixing plate, and a plurality of support components disposed in the side wall of the fixing plate; the sliding holes are connected to the through holes; one support component is disposed at one of the sliding holes; the support component includes a sleeve fixedly connected to the side of the fixing plate, a top rod slidably disposed in the sleeve, a spring fixedly connected to one end of the top rod disposed in the sleeve, and a pull rope fixedly connected to one end of the top rod disposed in the sleeve; the end of the spring away from the top rod is fixedly connected to the inner wall of the sliding hole, and the end of the pull rope away from the top rod is fixedly connected to the outer wall of the support tube.

[0006] Furthermore, a support plate is connected to one end of the top rod located outside the sliding hole.

[0007] Furthermore, the side of the support plate away from the top rod is arc-shaped; a rubber sheet is attached to the outer wall of the side of the support plate away from the top rod.

[0008] Furthermore, a limiting tube is connected to the upper end of the support tube, and the limiting tube is located above the fixed plate; when multiple fixed plates are placed overlapping each other, one of the limiting tubes is inserted into the support tube located above it.

[0009] Furthermore, the side wall of the limiting tube is provided with multiple hanging holes.

[0010] Furthermore, the support tube has a tapered structure that is smaller at the top and larger at the bottom, and the through hole has a tapered structure that is smaller at the top and larger at the bottom; when the support tube is completely inside the through hole, the outer wall of the support tube is in contact with the inner wall of the through hole; the outer diameter of the limiting tube is smaller than the diameter of the upper end of the through hole.

[0011] Furthermore, it also includes a drive device for pulling the support tube down.

[0012] Furthermore, the driving device includes a tubular support seat disposed below the fixed plate and vertically arranged, a hydraulic cylinder vertically disposed inside the support seat, a pull rod disposed through the support tube, and a pressure plate disposed on the side wall of the pull rod; the fixed plate is horizontally placed at the upper end of the support seat, and the lower end of the pull rod is detachably connected to the movable end of the hydraulic tube; when the lower end of the pull rod is connected to the movable end of the hydraulic cylinder, the pressure plate is attached to the upper end of the limiting tube.

[0013] Furthermore, the movable end of the hydraulic cylinder is provided with a connecting block, the upper end of the connecting block is provided with a threaded groove, and the lower end of the pull rod is threadedly connected to the threaded groove.

[0014] Furthermore, an annular pad is fixedly provided on the lower side wall of the fixed plate, and a gap is provided between the pad and the sleeve.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: In use, the multi-layer roll material fixing device of the present invention first places the fixing plate horizontally, then pulls down the support tube, simultaneously pulling multiple ropes through the support tube. These ropes then pull multiple push rods synchronously into the sliding hole (compressing the spring), reducing the diameter of the circular structure formed by the ends of the multiple push rods. The roll material can then be placed around the fixing plate, ensuring the roll material is at the same height as the fixing plate. The support tube is then released, and the spring force pushes the push rods towards the inner wall of the roll material. Multiple push rods support the roll material, ensuring it is concentrically positioned with the fixing plate. Thus, one roll material can be fixed by one fixing plate, and multiple fixing plates can be stacked to simultaneously fix multiple roll materials. Furthermore, a rotating shaft can be inserted into multiple support tubes simultaneously to support and limit the movement of multiple fixing plates. Therefore, even if the specifications of each roll material are different, the center of rotation of each roll material will always coincide with the center of the fixing plate during the rotating feeding process, effectively ensuring the stability of the roll material during feeding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-layer roll fixing device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the two states of the multi-layer roll fixing device provided in an embodiment of the present invention; Figure 3 for Figure 2 A sectional view along the vertical direction; Figure 4 This is a schematic diagram of the three states of the multi-layer roll fixing device provided in an embodiment of the present invention; Figure 5 for Figure 4 A partial sectional view along the vertical direction; Figure 6 This is a schematic diagram of the structure of the support tube portion provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the fixed disk portion provided in an embodiment of the present invention; Figure 8 for Figure 7 A partial sectional view along the vertical direction; Figure 9 This is a schematic diagram of the structure of the fixed disk portion provided in an embodiment of the present invention.

[0017] Icons: 11-Fixed plate, 12-Through hole, 13-Support tube, 14-Limit tube, 15-Hanging hole, 16-Plate, 20-Support assembly, 21-Sleeve, 22-Top rod, 23-Spring, 24-Pull rope, 25-Support plate, 26-Baffle, 30-Drive device, 31-Support base, 32-Hydraulic cylinder, 33-Pull rod, 34-Pressure plate, 35-Connecting block, 40-Rolled material, 41-Shaft. Detailed Implementation

[0018] Example The following description, in conjunction with specific embodiments, further illustrates the points, as shown in the appendix. Figure 1 - Appendix Figure 9As shown, the multi-layer roll fixing device of this embodiment includes a fixing plate 11, a through hole 12 opened in the middle of the fixing plate 11, a support tube 13 slidably disposed in the through hole 12, a plurality of sliding holes opened in the side wall of the fixing plate 11, and a plurality of support components 20 disposed in the side wall of the fixing plate 11; the sliding holes are connected to the through hole 12; one support component 20 is disposed at one sliding hole; the support component 20 includes a sleeve 21 fixedly connected to the side of the fixing plate 11, a top rod 22 slidably disposed in the sleeve 21, a spring 23 fixedly connected to one end of the top rod 22 disposed in the sleeve 21, and a pull rope 24 fixedly connected to one end of the top rod 22 disposed in the sleeve 21; the end of the spring 23 away from the top rod 22 is fixedly connected to the inner wall of the sliding hole, and the end of the pull rope 24 away from the top rod 22 is fixedly connected to the outer wall of the support tube 13. Specifically, in use, first place the fixing plate 11 horizontally, then pull down the support tube 13. Simultaneously, the support tube 13 pulls multiple ropes 24, which in turn pull multiple push rods 22 into the sliding hole (compressing the spring 23). This reduces the diameter of the circular structure formed by the ends of the push rods 22. Then, place the coil 40 around the fixing plate 11, ensuring it is at the same height as the plate. Release the support tube 13; the spring force of the spring 23 pushes the push rods 22 towards the inner wall of the coil 40. The multiple push rods 22 support the coil 40, ensuring it is concentrically positioned with the fixing plate 11. Thus, one coil 40 can be fixed by one fixing plate 11. By overlapping multiple fixing plates 11, multiple coils 40 can be fixed simultaneously. A rotating shaft 41 can be inserted into multiple support tubes 13 to support and limit the movement of the multiple fixing plates 11 (as shown in the attached diagram). Figure 4 As shown in the figure, when the roll 40 is rotating and feeding, even if the specifications of each roll 40 are different, the center of rotation of each roll 40 can always coincide with the center of the fixed plate 11, which can effectively ensure the stability of the roll 40 during the feeding process.

[0019] In this embodiment, the top rod 22 is connected to a support plate 25 at one end outside the sliding hole. The side of the support plate 25 away from the top rod 22 is arc-shaped; a rubber sheet is attached to the outer wall of the side of the support plate 25 away from the top rod 22. Specifically, by setting the support plate 25, the contact area with the inner wall of the coil 40 can be increased, and by setting the rubber sheet, the interaction force between the support plate 25 and the coil 40 can be increased, preventing relative sliding between the coil 40 and the support plate 25.

[0020] In this embodiment, the upper end of the support tube 13 is connected to a limiting tube 14, which is located above the fixed plate 11. When multiple fixed plates 11 are placed overlapping each other, one limiting tube 14 is inserted into the support tube 13 above it. Specifically, when multiple fixed plates 11 are placed overlapping each other, the fixed plates 11 can be positioned and limited by the cooperation of adjacent limiting tubes 14 and support tubes 13, so that the concentricity of multiple fixed plates 11 is higher when they are placed.

[0021] In this embodiment, the side wall of the limiting tube 14 is provided with multiple hanging holes 15. Specifically, the hooks can be used by external lifting devices, cranes, gantry cranes, etc., to pass through the hanging holes 15 and lift the fixed plate 11 and the coil 40 for transfer.

[0022] In this embodiment, the support tube 13 has a tapered structure that is smaller at the top and larger at the bottom, and the through hole 12 also has a tapered structure that is smaller at the top and larger at the bottom. When the support tube 13 is completely inside the through hole 12, the outer wall of the support tube 13 is in contact with the inner wall of the through hole 12. The outer diameter of the limiting tube 14 is smaller than the diameter of the upper end of the through hole 12. Specifically, the support tube 13 and the limiting tube 14 in the fixing plate 11 can only move downwards and not upwards, which makes it easier to perform hoisting operations.

[0023] In this embodiment, a drive device 30 for pulling the support tube 13 downward is also included. Specifically, a spring 23 with a higher elastic modulus is provided, which can effectively increase the interaction force between the support plate 25 and the coil 40, and improve the concentricity between the coil 40 and the fixed plate 11. However, since there are multiple springs 23, and the stiffer springs 23 are more difficult to compress manually, an external power structure can be used to drive the support tube 13 to move. A partition 26 can be provided inside the end of the sliding hole near the through hole 12, and a clearance hole for the pull rope 24 to pass through is provided on the partition 26. Lubricant is applied to the clearance hole and the outer wall of the pull rope 24 to reduce friction. The pull rope 24 can be a steel cable.

[0024] The driving device 30 in this embodiment includes a tubular support base 31 vertically arranged below the fixed plate 11, a hydraulic cylinder 32 vertically arranged inside the support base 31, a pull rod 33 passing through the support tube 13, and a pressure plate 34 arranged on the side wall of the pull rod 33; the fixed plate 11 is horizontally placed on the upper end of the support base 31, and the lower end of the pull rod 33 is detachably connected to the movable end of the hydraulic tube; when the lower end of the pull rod 33 is connected to the movable end of the hydraulic cylinder 32, the pressure plate 34 is attached to the upper end of the limiting tube 14. Specifically, the hydraulic cylinder 32 can be used as a power structure to pull the support tube 13 down. The specific operation is as follows: first, the fixed plate 11 is placed on the support base 31, then the pull rod 33 is passed through the support tube 13 and connected to the movable end of the hydraulic cylinder 32, and then the hydraulic cylinder 32 is used to pull the pull rod 33 down. During the descent of the pull rod 33, the pressure plate 34 will press the limiting tube 14 and the support tube 13 down (as shown in the attached figure). Figure 2 As shown), the support tube 13 is pulled down to achieve the final purpose. Then, the coil 40 is moved onto the support seat 31 and is at the same height as the fixed plate 11. The hydraulic cylinder 32 drives the pull rod 33 to move up, so that the support tube 13 returns to the previous position. The spring 23 pushes the top rod 22 and the support plate 25 to move, supporting the coil 40.

[0025] In this embodiment, the movable end of the hydraulic cylinder 32 is provided with a connecting block 35. The upper end of the connecting block 35 is provided with a threaded groove, and the lower end of the pull rod 33 is threadedly connected to the threaded groove. Specifically, the pull rod 33 can be manually passed through the support tube 13 and the limiting tube 14 and then threadedly connected to the connecting block 35. After the coil 40 is connected to the fixed plate 11, the pull rod 33 can be removed.

[0026] In this embodiment, an annular pad 16 is fixedly provided on the lower side wall of the fixing plate 11, and a gap is provided between the pad 16 and the sleeve 21. Specifically, the pad 16 can support the coil 40 and separate adjacent coils 40, but it is best to have a certain gap between the coil 40 and the pad 16, so that the friction between the coil 40 and the pad 16 is smaller and the unloading is smoother.

[0027] In summary, the multi-layer roll fixing device of this embodiment first places the fixing plate 11 horizontally, then pulls down the support tube 13. The support tube 13 simultaneously pulls multiple pull ropes 24, which in turn pull multiple push rods 22 into the sliding hole (compressing the spring 23). This reduces the diameter of the circular structure formed by the ends of the multiple push rods 22. Then, the roll 40 can be placed around the fixing plate 11 so that the roll 40 is at the same height as the fixing plate 11. Then, the support tube 13 is released, and the elastic force of the spring 23 pushes the push rods 22 toward the inner wall of the roll 40. The multiple push rods 22 support the roll 40, making the roll 40 concentric with the fixing plate 11. In this way, a coil of material 40 can be fixed by a fixed plate 11, and multiple fixed plates 11 can be stacked to fix multiple coils of material 40 at the same time. A rotating shaft 41 can be inserted into multiple support tubes 13 at the same time to support and limit the multiple fixed plates 11. In this way, when the coils of material 40 are rotating and feeding, even if the specifications of each coil of material 40 are different, the center of rotation of each coil of material 40 can always coincide with the center of the fixed plate 11, which can effectively ensure the stability of the coils of material 40 during the feeding process.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-layer roll fixing device, characterized in that: It includes a fixed disk (11), a through hole (12) opened in the middle of the fixed disk (11), a support tube (13) slidably disposed in the through hole (12), a plurality of sliding holes opened in the side wall of the fixed disk (11), and a plurality of support components (20) disposed in the side wall of the fixed disk (11). The sliding hole is connected to the through hole (12); a support assembly (20) is provided at one of the sliding holes; the support assembly (20) includes a sleeve (21) fixedly connected to the side of the fixed plate (11), a push rod (22) slidably provided in the sleeve (21), a spring (23) fixedly connected to one end of the push rod (22) in the sleeve (21), and a pull rope (24) fixedly connected to one end of the push rod (22) in the sleeve (21); The end of the spring (23) away from the top rod (22) is fixedly connected to the inner wall of the sliding hole, and the end of the pull rope (24) away from the top rod (22) is fixedly connected to the outer wall of the support tube (13); The upper end of the support tube (13) is connected to a limiting tube (14), and the limiting tube (14) is located above the fixed plate (11); When multiple fixed discs (11) are placed overlapping each other, a limiting tube (14) is inserted into the supporting tube (13) located above it; The support tube (13) has a tapered structure that is smaller at the top and larger at the bottom, and the through hole (12) has a tapered structure that is smaller at the top and larger at the bottom; when the support tube (13) is completely inside the through hole (12), the outer wall of the support tube (13) is in contact with the inner wall of the through hole (12); The outer diameter of the limiting tube (14) is smaller than the diameter of the upper end of the through hole (12).

2. The multi-layer roll fixing device according to claim 1, characterized in that: The top rod (22) is connected to a support plate (25) at one end outside the sliding hole.

3. The multi-layer roll fixing device according to claim 2, characterized in that: The side of the support plate (25) away from the top rod (22) is arc-shaped; A rubber sheet is attached to the outer wall of the support plate (25) on the side away from the top rod (22).

4. The multi-layer roll fixing device according to claim 1, characterized in that: The side wall of the limiting tube (14) is provided with multiple hanging holes (15).

5. The multi-layer roll fixing device according to claim 1, characterized in that: It also includes a drive device (30) for pulling the support tube (13) down.

6. The multi-layer roll fixing device according to claim 5, characterized in that: The drive device (30) includes a tubular support base (31) disposed below the fixed plate (11) and vertically arranged, a hydraulic cylinder (32) vertically disposed inside the support base (31), a pull rod (33) disposed through the support tube (13), and a pressure plate (34) disposed on the side wall of the pull rod (33). The fixed plate (11) is horizontally placed at the upper end of the support base (31), and the lower end of the pull rod (33) is detachably connected to the movable end of the hydraulic pipe; When the lower end of the pull rod (33) is connected to the movable end of the hydraulic cylinder (32), the pressure plate (34) is attached to the upper end of the limiting tube (14).

7. The multi-layer roll fixing device according to claim 6, characterized in that: The hydraulic cylinder (32) has a connecting block (35) at its movable end. The upper end of the connecting block (35) has a threaded groove, and the lower end of the pull rod (33) is threadedly connected to the threaded groove.

8. The multi-layer roll fixing device according to claim 1, characterized in that: The lower side wall of the fixed plate (11) is fixed with an annular pad (16), and there is a gap between the pad (16) and the sleeve (21).

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