Blade locking and positioning mechanism of slitting machine

Abstract

The blade locking and positioning mechanism is characterized in that the blade locking and positioning mechanism comprises a cutter shaft, a plurality of cutter holder rings are arranged on the cutter shaft at intervals in the axial direction of the cutter shaft, each cutter holder ring comprises a first limiting ring and a second limiting ring, a circular-ring-shaped blade is arranged between each first limiting ring and the corresponding second limiting ring, and each circular-ring-shaped blade is composed of a plurality of blade units and is in a circular ring shape; and a locking piece for locking the blade unit is arranged on the second limiting ring. The annular blades and the cutter shaft are of a split type structure, when the blade units are disassembled and replaced, the locking pieces loosen the blade units, the single abraded blade unit can be replaced, the downtime is shortened, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, and in particular to a blade locking and positioning mechanism for a slitting machine. Background Technology

[0002] A slitting machine, also known as a slitting line, longitudinal slitting machine, or stripping machine, is a type of metal slitting equipment suitable for longitudinal shearing of metal strips.

[0003] Existing slitting machines, such as the one described in patent CN219786721U, include a base. Along the direction of the steel strip's movement, the base is sequentially equipped with a feeding assembly, a slitting assembly, and a winding assembly. One end of the steel strip passes through and connects to the slitting and winding assemblies. The slitting assembly includes a drive shaft, a driven shaft, several cutting blades, a drive gear, a driven gear, and a first motor. The drive shaft and driven shaft are rotatably connected to the base, and the cutting blades are spaced apart along the length of the drive shaft. Because the cutting blades and shafts of this slitting machine are designed as a single, integrated unit, when the cutting blades are damaged due to wear or chipping during long-term use and need replacement, the damaged blades cannot be removed and replaced individually. Instead, the entire assembly, including the cutting blades and shafts, must be disassembled from the slitting machine for replacement, making the process cumbersome and inefficient. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a blade locking and positioning mechanism for a slitting machine.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a blade locking and positioning mechanism for a slitting machine, characterized in that it includes a blade shaft, and multiple blade holder rings are provided at intervals along its axial direction on the blade shaft. Each blade holder ring includes a first limiting ring and a second limiting ring. A circular blade is provided between the first limiting ring and the second limiting ring. The circular blade is composed of multiple blade units forming a circle. A locking element for locking the blade units is provided on the second limiting ring.

[0006] Furthermore, the outer diameter of the first limiting ring is the same as the outer diameter of the second limiting ring, and the outer diameter of the first limiting ring is smaller than the outer diameter of the annular blade.

[0007] Furthermore, the inner diameter of the first limiting ring is smaller than the inner diameter of the annular blade.

[0008] Furthermore, the first limiting ring is fixedly connected to the cutter shaft, the second limiting ring is slidably connected to the cutter shaft, the locking component includes a locking bolt, the first limiting ring is provided with a threaded countersunk hole that mates with the locking bolt, the second limiting ring is provided with a first threaded through hole that mates with the locking bolt, and the blade unit is provided with a second threaded through hole that mates with the locking bolt.

[0009] Furthermore, the annular blade consists of two blade units arranged in a semi-circular shape.

[0010] Furthermore, multiple limiting shafts are evenly distributed on the end face of the second limiting ring relative to the first limiting ring, and the first limiting ring is provided with limiting countersunk holes that cooperate with the limiting shafts.

[0011] Furthermore, the annular blade is made of high-speed steel.

[0012] Furthermore, the limiting shaft is located within the inner diameter of the annular blade.

[0013] Furthermore, the end of the limiting shaft is provided with a first circular magnet, and the limiting countersunk hole is provided with a second circular magnet that attracts the first circular magnet.

[0014] The beneficial effects of this application are as follows: 1. The circular blade and the cutter shaft of this application adopt a split structure. The circular blade is composed of multiple blade units. When disassembling and replacing, the locking part is loosened to replace the blade unit, thereby reducing downtime and maintenance costs.

[0015] 2. The locking component uses locking bolts, which pass through the first threaded through hole of the second limit ring and the second threaded through hole of the blade unit in sequence, and connect with the threaded countersunk hole of the first limit ring to form a three-point locking structure, which enhances the locking reliability and prevents the blade from loosening when rotating at high speed.

[0016] 3. When disassembling this application, loosen the locking bolt and push the second limiting ring away from the first limiting ring to quickly replace the annular blade, which greatly improves the replacement efficiency.

[0017] 4. The first circular magnet at the end of the limiting shaft attracts the second circular magnet inside the limiting countersunk hole, which helps to fix the relative position of the limiting shaft and the limiting countersunk hole, preventing the second limiting ring and the first limiting ring from moving relative to each other in the circumferential direction, and ensuring the stability of the second limiting ring and the first limiting ring.

[0018] 5. The circular blade is made of high-speed steel, which has excellent wear resistance and impact resistance, extending the blade's service life and ensuring long-term shearing accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the circular blade of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the second limiting ring in this utility model.

[0022] The diagram shows the following markings: 1. Tool shaft, 2. Tool holder ring, 21. First limiting ring, 22. Second limiting ring, 221. First threaded through hole, 222. Limiting shaft, 3. Circular blade, 31. Blade unit, 311. Second threaded through hole, 4. Locking element. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Please see Figure 1-3 This utility model provides a blade locking and positioning mechanism for a slitting machine, including a blade shaft 1. Multiple blade holder rings 2 are spaced apart along the axial direction on the blade shaft 1. Each blade holder ring 2 includes a first limiting ring 21 and a second limiting ring 22. A circular blade 3 is provided between the first limiting ring 21 and the second limiting ring 22. The circular blade 3 protrudes from the blade holder ring 2 and is composed of multiple blade units 31 forming a ring. The second limiting ring 22 is provided with a locking member 4 for locking the blade units 31.

[0025] The outer diameter of the first limiting ring 21 is the same as the outer diameter of the second limiting ring 22, and the outer diameter of the first limiting ring 21 is smaller than the outer diameter of the annular blade 3. The inner diameter of the first limiting ring 21 is smaller than the inner diameter of the annular blade 3. The inner diameter of the first limiting ring 21 is the same as the inner diameter of the second limiting ring 22.

[0026] Specifically, the first limiting ring 21 is fixedly connected to the cutter shaft 1, and the first limiting ring 21 is welded to the cutter shaft 1. The second limiting ring 22 is slidably connected to the cutter shaft 1. The locking component 4 includes a locking bolt, which is an internal hex bolt. The first limiting ring 21 has a threaded countersunk hole that mates with the locking bolt, the second limiting ring 22 has a first threaded through hole 221 that mates with the locking bolt, and the blade unit 31 has a second threaded through hole 311 that mates with the locking bolt. The number of the first threaded through hole 221, the second threaded through hole 311, and the threaded countersunk hole are all three. The annular blade 3 is composed of two semi-circular blade units 31. It should be noted that the parts not described in detail in this application are all prior art.

[0027] Furthermore, the annular blade 3 is made of high-speed steel. It possesses excellent wear resistance and impact resistance, extending blade life and ensuring long-term shearing accuracy.

[0028] Of course, this utility model is not limited to the embodiments described above. Several other embodiments based on the design concept of this utility model are also provided below.

[0029] For example, in other embodiments, unlike the embodiments described above, such as... Figure 2 and Figure 3 As shown, multiple limiting shafts 222 are evenly distributed on the end face of the second limiting ring 22 relative to the first limiting ring 21. The first limiting ring 21 has limiting countersunk holes that mate with the limiting shafts 222. A first circular magnet is provided at the end of each limiting shaft 222, and a second circular magnet, attracted to the first circular magnet, is provided within the limiting countersunk hole. The limiting shafts 222 are located within the inner diameter of the annular blade 3. This prevents relative movement between the first limiting ring 21 and the second limiting ring 22 in the circumferential direction, ensuring the stability of both rings. There are six limiting shafts 222.

[0030] For example, in other embodiments, unlike the embodiments described above, a positioning ring is provided on the end face of the first limiting ring 21 opposite to the second limiting ring 22, and an annular positioning groove is provided on the second limiting ring 22 opposite to the positioning ring to cooperate with the positioning ring. After the annular blade 3 is installed, the inner side of the annular blade 3 abuts against the outer side of the positioning ring. When the blade unit 31 is locked, the left and right sides of the blade unit 31 abut against the first limiting ring 21 and the second limiting ring 22 respectively, the positioning ring part is inserted into the annular positioning groove, and the inner side of the annular blade 3 abuts against the outer side of the positioning ring.

[0031] When installing the circular blade 3, the second limiting ring 22 is slid along the axial direction of the blade shaft 1 to a suitable distance. The blade unit 31 is placed between the first limiting ring 21 and the second limiting ring 22. A locking bolt is passed through the first threaded through hole 221 and the second threaded through hole 311, and screwed into the threaded countersunk hole of the first limiting ring 21 to lock the blade unit 31. At the same time, the first limiting ring 21 and the second limiting ring 22 are connected by the locking bolt, and under the action of the locking bolt, the second limiting ring 22 presses the blade unit 31 against the first limiting ring 21.

[0032] When replacing, simply loosen the locking bolt, remove the worn blade unit 31, and replace it with a new blade unit 31. Replacement is convenient and efficient.

[0033] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A blade locking and positioning mechanism for a slitting machine, characterized in that, Includes a cutter shaft (1), and multiple cutter holder rings (2) are spaced apart along its axial direction on the cutter shaft (1). Each cutter holder ring (2) includes a first limiting ring (21) and a second limiting ring (22). A circular blade (3) is provided between the first limiting ring (21) and the second limiting ring (22). The circular blade (3) is composed of multiple blade units (31) forming a ring. A locking element (4) for locking the blade unit (31) is provided on the second limiting ring (22).

2. The blade locking and positioning mechanism of a slitting machine according to claim 1, characterized in that, The outer diameter of the first limiting ring (21) is the same as the outer diameter of the second limiting ring (22), and the outer diameter of the first limiting ring (21) is smaller than the outer diameter of the circular blade (3).

3. The blade locking and positioning mechanism of a slitting machine according to claim 2, characterized in that, The inner diameter of the first limiting ring (21) is smaller than the inner diameter of the annular blade (3).

4. The blade locking and positioning mechanism of a slitting machine according to claim 1, characterized in that, The first limiting ring (21) is fixedly connected to the cutter shaft (1), the second limiting ring (22) is slidably connected to the cutter shaft (1), the locking member (4) includes a locking bolt, the first limiting ring (21) is provided with a threaded countersunk hole that cooperates with the locking bolt, the second limiting ring (22) is provided with a first threaded through hole (221) that cooperates with the locking bolt, and the blade unit (31) is provided with a second threaded through hole (311) that cooperates with the locking bolt.

5. The blade locking and positioning mechanism of a slitting machine according to claim 1, characterized in that, The annular blade (3) consists of two blade units (31) that are semi-circular.

6. The blade locking and positioning mechanism of a slitting machine according to claim 1, characterized in that, The second limiting ring (22) has multiple limiting shafts (222) evenly distributed on its end face relative to the first limiting ring (21), and the first limiting ring (21) has a limiting countersunk hole that cooperates with the limiting shaft (222).

7. The blade locking and positioning mechanism of a slitting machine according to claim 1, characterized in that, The annular blade is made of high-speed steel.

8. The blade locking and positioning mechanism of a slitting machine according to claim 6, characterized in that, The limiting shaft (222) is located within the inner diameter of the annular blade (3).

9. The blade locking and positioning mechanism of a slitting machine according to claim 6, characterized in that, The end of the limiting shaft (222) is provided with a first circular magnet, and the limiting countersunk hole is provided with a second circular magnet that attracts the first circular magnet.

Images