Winding drum reducing device for production of winding drum of metal shear coiling machine
By installing a diameter-changing device block on the outside of the metal shearing machine drum, the drum diameter can be changed, solving the problem that existing drums cannot produce φ500 inner diameter rolls, thus achieving broader production capacity and enhancing the company's reputation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-03
AI Technical Summary
The existing metal shearing machine's drum cannot produce copper strip products with an inner diameter of φ500, which limits the equipment's production capacity and the company's reputation.
Design a drum diameter changing device. By fixing a drum diameter changing device block around the outside of the original drum, the diameter of the original drum (φ400mm) is changed to φ500mm. The drum diameter changing device block is made of nylon or polymer material and is connected by connecting bolts to realize the shearing production of strip with an inner diameter of φ500.
It enabled the shearing production of φ500 strip, expanded the production capacity of the equipment, reduced equipment investment, and enhanced the company's production capacity and reputation.
Smart Images

Figure CN224073031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the winding drum of a shearing machine in the non-ferrous metals industry, and in particular to a drum diameter changing device for the production of drums in a metal shearing and winding machine. Background Technology
[0002] Currently, in the non-ferrous metal processing industry, when strip is sheared on a shearing machine, the existing 320 shearing coiler designed and manufactured by manufacturers has a φ400 drum, and there is no model designed and manufactured with a φ500 drum. This makes it impossible to cut and produce copper strip products with an inner diameter of φ500, which cannot meet production needs, restricts the production capacity of the equipment, and affects the improvement of equipment and production capacity. The existing φ400 drum of the shearing machine cannot realize the shearing and production of products with an inner diameter of φ500. In view of the above reasons, a drum diameter changing device for metal shearing coiler production is proposed. Utility Model Content
[0003] The purpose of this invention is to overcome the limitations of existing strip shearing machines with φ400 drums, which cannot produce strip with an inner diameter of φ500, thus failing to meet production demands and restricting the equipment's production capacity. Through a rational design, this invention provides a drum diameter changing device for metal shearing and winding machines. This invention uses a drum diameter changing device block fixed around the outer side of the original φ400mm diameter drum, allowing the original φ400mm diameter drum to be changed to a 500mm diameter. The diameter changing technology is simple, reduces equipment investment, and enables the shearing of strip with an inner diameter of φ500, meeting production needs, expanding the equipment's production capacity, and enhancing the company's reputation.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: A drum diameter changing device for metal shearing and winding machine production comprises: a primary drum, a shaft, a drum diameter changing device block, an outer arc surface of the block, an inner arc surface of the block, a first drum diameter changing block, a second drum diameter changing block, a third drum diameter changing block, a fourth drum diameter changing block, connecting bolts, nut holes, and bolt holes; the drum of the shearing and winding machine is set as the primary drum, a shaft is installed in the primary drum, the outer radius of the primary drum is set to 200mm, and the drum diameter changing device blocks are evenly distributed around the outer side of the primary drum, the drum diameter changing device blocks are made of nylon or polymer material; the outer radius of the drum diameter changing device block is set to 250mm, and connecting bolts are installed between the drum diameter changing device block and the primary drum; the outer diameter of the drum diameter changing device block installed on the outer side of the primary drum is 500mm.
[0005] The drum diameter changing device assembly is equipped with at least four drum diameter changing blocks, and expansion joints are reserved between the four drum diameter changing blocks. The four drum diameter changing blocks are respectively designated as the first drum diameter changing block, the second drum diameter changing block, the third drum diameter changing block, and the fourth drum diameter changing block. A pair of screw holes are reserved at both ends of the longitudinal direction of the four drum diameter changing blocks. The outer hole of the pair of screw holes is set as a nut hole, and the inner hole of the pair of screw holes is set as a bolt hole. The original drum passes through the reserved bolt holes corresponding to the bolt hole positions of the four drum diameter changing blocks. Connecting bolts are respectively installed in the bolt holes of the original drum and the drum diameter changing blocks.
[0006] The inner side of the four drum diameter reducing blocks is set as the outer arc surface with a radius of 200mm, and the outer side of the four drum diameter reducing blocks is set as the inner arc surface with a radius of 250mm.
[0007] Beneficial effects
[0008] This utility model uses a drum diameter changing device block that is fixed around the outside of the original drum with a diameter of φ400mm. The original drum diameter of φ400mm can be changed to a diameter of 500mm. The diameter changing technology is simple and can reduce equipment investment, thereby realizing the cutting production of strip products with an inner diameter of φ500, meeting production needs, expanding the production capacity of the equipment, and improving the reputation of the enterprise. Attached Figure Description
[0009] The present invention will be further described below with reference to the accompanying drawings:
[0010] Figure 1 This is a schematic diagram of the overall assembly structure;
[0011] Figure 2 This is a three-dimensional structural diagram of the final assembly.
[0012] Figure 3 This is a three-dimensional structural diagram of the drum diameter changing device assembly;
[0013] Figure 4 This is a partial structural diagram of 3;
[0014] Figure 1 , 2 In sections 1, 2, and 4, the original drum 1, the shaft 2, the drum diameter changing device block 3, the outer arc surface 3-1, the inner arc surface 3-2, the first drum diameter changing block 4, the second drum diameter changing block 5, the third drum diameter changing block 6, the fourth drum diameter changing block 7, the connecting bolt 8, the nut hole 8-1, and the bolt hole 8-2. Detailed Implementation
[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0016] The shearing and winding machine uses an original drum 1, with a winding shaft 2 inside. The outer radius of the original drum 1 is 200mm. Drum diameter changing device blocks 3 are evenly distributed around the outside of the original drum 1. The drum diameter changing device blocks 3 are made of nylon or polymer material. The outer radius of the drum diameter changing device blocks 3 is 250mm. Connecting bolts 8 are installed between the drum diameter changing device blocks 3 and the original drum 1. The outer diameter of the drum diameter changing device blocks 3 outside the original drum 1 is 500mm.
[0017] The drum diameter changing device block 3 is provided with at least four drum diameter changing blocks. Expansion joints are reserved between the four drum diameter changing blocks. The four drum diameter changing blocks are respectively designated as the first drum diameter changing block 4, the second drum diameter changing block 5, the third drum diameter changing block 6, and the fourth drum diameter changing block 7. A pair of screw holes are reserved at both ends of the longitudinal direction of the four drum diameter changing blocks. The outer hole of the pair of screw holes is designated as a nut hole 8-1, and the inner hole of the pair of screw holes is designated as a bolt hole 8-2. The original drum 1 passes through the reserved bolt holes 8-2 corresponding to the bolt holes 8-2 of the four drum diameter changing blocks. Connecting bolts 8 are respectively provided in the bolt holes 8-2 of the original drum 1 and the drum diameter changing blocks.
[0018] The inner side of the four drum diameter reducing blocks is set as the outer arc surface 3-1, with a radius of 200mm. The outer side of the four drum diameter reducing blocks is set as the inner arc surface 3-2, with a radius of 250mm.
Claims
1. A drum diameter changing device for producing drums in a metal shearing and winding machine, comprising: a primary drum (1), a winding shaft (2), a drum diameter changing device block (3), an outer arc surface (3-1) of the block, an inner arc surface (3-2) of the block, a first drum diameter changing block (4), a second drum diameter changing block (5), a third drum diameter changing block (6), a fourth drum diameter changing block (7), connecting bolts (8), nut holes (8-1), and bolt holes (8-2); characterized in that: The shearing and winding machine uses the original drum (1) as the drum, and a winding shaft (2) is installed in the original drum (1). The outer radius of the original drum (1) is set to 200mm. A drum diameter changing device block (3) is evenly distributed around the outside of the original drum (1). The drum diameter changing device block (3) is made of nylon or polymer material. The outer radius of the drum diameter changing device block (3) is set to 250mm. A connecting bolt (8) is installed between the drum diameter changing device block (3) and the original drum (1). The outer diameter of the drum diameter changing device block (3) installed on the outside of the original drum (1) is 500mm.
2. A drum diameter changing device for metal shearing and winding machine drum production according to claim 1: characterized in that: The drum diameter changing device block (3) is provided with at least four drum diameter changing blocks. Expansion joints are reserved between the four drum diameter changing blocks. The four drum diameter changing blocks are respectively set as the first drum diameter changing block (4), the second drum diameter changing block (5), the third drum diameter changing block (6), and the fourth drum diameter changing block (7). A pair of screw holes are reserved at both ends of the longitudinal direction of the four drum diameter changing blocks. The outer hole of the pair of screw holes is set as a nut hole (8-1), and the inner hole of the pair of screw holes is set as a bolt hole (8-2). The original drum (1) passes through the reserved bolt holes (8-2) corresponding to the bolt holes (8-2) of the four drum diameter changing blocks. Connecting bolts (8) are respectively set in the bolt holes (8-2) of the original drum (1) and the drum diameter changing blocks.
3. A metal shearing and winding machine according to claim 1 The drum diameter changing device for drum production is characterized by: The inner side of the four drum diameter reducing blocks is set as the outer arc surface (3-1), and the outer arc surface (3-1) is set to a radius of 200mm. The outer side of the four drum diameter reducing blocks is set as the inner arc surface (3-2), and the inner arc surface (3-2) is set to a radius of 250mm.