A quick replacement device for a necking machine inlet star wheel waxing assembly

Abstract

The utility model discloses a kind of necking machine entrance star wheel waxing assembly quick replacement device, including waxing gear, the waxing gear includes connecting block, gear disc and heart disc, the gear disc with the heart disc is detachably fixed connection and coaxial arrangement, opening is equipped on the gear disc, the connecting block is detachably installed in the opening, the upper of the connecting block is equipped with engagement part, the dedendum of the meshing tooth on the engagement part and the dedendum of the meshing tooth on the gear disc is located on same circumference, the tooth end of the meshing tooth on the engagement part and the tooth end of the meshing tooth on the gear disc wheel is located on same circumference, can solve the problem that necking machine maintenance time is long, maintenance cost is high.

Description

Technical Field

[0001] This utility model belongs to the field of beverage can manufacturing technology, specifically relating to a quick replacement device for the wax coating assembly of the inlet star wheel of a necking machine. Background Technology

[0002] Currently, in the manufacturing of aluminum two-piece cans, the printed patterns on the outside of cans are easily damaged in high-speed production scenarios, resulting in scratched and defective cans that trigger customer complaints. This problem has long hindered the improvement of product quality and the optimization of production efficiency in the industry. Through a systematic survey and analysis of production processes and equipment, it was determined that the necking process is the core link in the formation of scratched cans, and the star wheel at the inlet of the necking machine is the key part that causes scratches on the can body. The precision of its contact and fit with the can directly affects the integrity of the can surface.

[0003] The manufacturing of aluminum cans involves metal forming, and metal-to-metal collisions are difficult to completely avoid during production. When the wear-resistant chrome plating at the contact point between the necking machine's inlet star wheel and the can wears down, or when the inlet waxing roller becomes rough due to aging, the printed patterns on the can's exterior will inevitably be damaged under high-speed production conditions. Furthermore, the necking machine's inlet waxing star wheel is a customized, non-standard structure, requiring reprocessing to match the original equipment's dimensional accuracy, and chrome plating repair requires specialized techniques. This results in higher processing and repair costs compared to conventional parts, significantly increasing production costs for enterprises. Therefore, if the inlet waxing roller becomes rough due to aging, scratches on the can body are unavoidable, and the cost of repairing the waxing star wheel is high.

[0004] In addition, since the wall thickness of aluminum cans is usually only around 0.1mm, their resistance to deformation is weak. At the same time, the spacing of the parts of the necking machine is highly precise. At a high production speed of 2400CPM, the slow speed and low convenience of equipment replacement, while ensuring that the product quality is not affected, directly affect production efficiency and increase equipment downtime.

[0005] Therefore, a new technology is needed to solve the problems of long maintenance time and high maintenance cost of existing can necking machines. Utility Model Content

[0006] To address the aforementioned problems in the prior art, this utility model provides a quick replacement device for the waxing assembly of the inlet star wheel of a necking machine, which facilitates installation and disassembly, reduces necking machine maintenance time, and lowers maintenance costs.

[0007] The present invention adopts the following technical solution: A quick-change device for the waxing assembly of a necking machine inlet star wheel includes a waxing gear. The waxing gear includes a connecting block, a gear disk, and a core disk. The gear disk and the core disk are detachably fixedly connected and coaxially arranged. The gear disk has an opening, and the connecting block is detachably installed in the opening. The connecting block has a meshing part. The roots of the meshing teeth on the meshing part are located on the same circumference as the roots of the meshing teeth on the gear disk, and the tips of the meshing teeth on the meshing part are located on the same circumference as the tips of the meshing teeth on the gear disk. As a further improvement to the technical solution of this utility model, the opening is approximately U-shaped.

[0008] As a further improvement to the technical solution of this utility model, the central angle of the opening is less than 90°.

[0009] As a further improvement to the technical solution of this utility model, the gear disk is provided with a first central hole, and the opening communicates with the first central hole.

[0010] As a further improvement to the technical solution of this utility model, a connecting part is provided inside the opening, and the outer diameter of the connecting part is smaller than the circumference diameter of the root of the meshing tooth on the gear disk.

[0011] As a further improvement to the technical solution of this utility model, the first central hole is a stepped hole, one end of the first central hole is provided with a first stepped surface, the outer periphery of the core plate is provided with an annular step, and one side of the outer periphery of the core plate is provided with a second stepped surface. The first stepped surface and the second stepped surface are in close contact. The inner diameter of the second stepped surface is equal to the inner and outer diameters of the first stepped surface. The part of the core plate structure located in the opening forms the connecting part. One side of the connecting block is in close contact with the second stepped surface located in the opening. The connecting block and the core plate are detachably fixedly connected. The circumference of the inner diameter of the connecting block coincides with the circumference of the inner diameter of the second stepped surface.

[0012] As a further improvement to the technical solution of this utility model, a third step is provided on the side of the connecting block near the second step surface, and a third step surface is formed on this side. The third step surface is in close contact with the second step surface located in the opening.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This solution features a quick-change device for the waxing assembly of the necking machine's inlet star wheel. The waxing gear of the necking machine's inlet star wheel is made of aluminum alloy and has a U-shaped opening. When changing the rubber roller, only the connecting block at the opening needs to be removed; there is no need to disassemble the entire waxing gear and other components. This allows for quick replacement of the waxing rubber roller, reducing necking machine maintenance time and lowering production costs. There is no need to re-machine the entire necking machine's inlet waxing star wheel to match the original equipment's dimensional accuracy; only a suitable connecting block needs to be machined, significantly reducing maintenance costs. It also allows for timely replacement of the waxing rubber roller. The waxing gear and the inlet star wheel are connected in a fitted manner, and the entire device is fixed to the main shaft. The rubber roller is fixed to the outer ring of the waxing gear. After using this quick-change device for the necking machine's inlet star wheel waxing assembly, a connection position for the rubber roller assembly is reserved at the connecting block. After removing the connecting block, this rubber roller assembly can be directly removed from the necking machine for replacement. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a schematic diagram of the overall structure of the quick-change device for the inlet star wheel waxing assembly of the necking machine according to this utility model. Figure 2 This is a schematic diagram of the gear disk structure; Figure 3 for Figure 2 Schematic diagram of the cross section at point AA; Figure 4 This is a schematic diagram of the connecting block structure; Figure 5 This is a schematic diagram of the cross-section at point BB in the figure; Figure 6 This is a schematic diagram of the heart disc structure; Figure 7 This is a schematic diagram of the connection structure between the gear disk and the connecting block; Figure 8 This is a schematic diagram of the connection structure between the core plate and the connecting block.

[0015] Figure label: 1-Waxed gear; 11-Gear disk; 111-First central hole; 112-Opening; 113-First stepped surface; 12-Core disk; 121-Second central hole; 122-Second stepped surface; 13-Connecting block; 131-Step structure; 1311-Third stepped surface; 132-Meshing part. Detailed Implementation

[0016] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0017] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0018] Reference Figures 1 to 4 A quick-change device for the waxing assembly of a necking machine inlet star wheel includes a waxing gear 1. The waxing gear 1 includes a connecting block 13, a gear disk 11, and a core disk 12. The gear disk 11 and the core disk 12 are detachably fixedly connected and coaxially arranged. The gear disk 11 has an opening 112, and the connecting block 13 is detachably installed in the opening 112. The connecting block 13 has a meshing part 132. The roots of the meshing teeth on the meshing part 132 are located on the same circumference as the roots of the meshing teeth on the gear disk 11, and the tips of the meshing teeth on the meshing part 132 are located on the same circumference as the tips of the meshing teeth on the gear disk 11. The waxing gear 1 uses aluminum alloy instead of the original plastic gear, which not only improves the strength and wear resistance of the gear but also further reduces wear on the rubber rollers and scratches on the can body caused by unstable can dropping due to gear wear. This also extends the service life of the equipment components and reduces equipment maintenance costs.

[0019] Because the connecting block 13 is detachably installed on the waxing gear 1, when the waxing roller is damaged, only the connecting block 13 needs to be removed to replace the waxing roller. Replacing the waxing roller does not require disassembling the entire device, reducing troubleshooting time from 2 hours to 10 minutes, effectively reducing equipment downtime, significantly improving the effective operating rate of production equipment, and ensuring production continuity. The waxing gear 1 and the inlet star wheel are connected in a fitted manner, and the entire device is fixed on the main shaft, with the roller fixed to the outer ring of the waxing gear 1. Before using this device, if the roller was damaged and needed replacement, the wax inlet assembly (inlet guide rail assembly) had to be disassembled, and the star wheel assembly had to be removed from the necking machine before the roller could be taken out, resulting in a huge workload. Now, with the quick replacement device for the necking machine inlet star wheel waxing assembly in this solution, the roller assembly position reserved at the connecting block 13 allows for direct removal and replacement of the roller assembly directly on the necking machine after disassembling the connecting block 13.

[0020] Specifically, the opening 112 is approximately U-shaped, with rounded edges to facilitate quick installation and disassembly of the connecting block 13. The location of the opening 112 reduces the time required to disassemble the entire device when replacing the rubber roller. The position and size of the opening 112 correspond to the rubber roller assembly. The central angle of the opening 112 is less than 90°, and its small size does not affect the overall stability of the gear disk 11. The design of the opening 112 and connecting block 13 enables rapid replacement of the waxing rubber roller and stable can placement, thereby reducing equipment downtime and improving production efficiency.

[0021] Specifically, the gear disk 11 is provided with a first central hole 111, and the opening 112 communicates with the first central hole 111. The gear disk 11 has a simple structure and is easy to install and connect with the connecting block 13.

[0022] Specifically, the opening 112 is provided with a connecting part, the outer diameter of which is smaller than the circumference diameter of the root of the meshing tooth on the gear disk 11.

[0023] Specifically, the first central hole 111 is a stepped hole, and one end of the first central hole 111 is provided with a first stepped surface 113. The center of the core plate 12 is provided with a second central hole 121 coaxial with the first central hole 111. The second central hole 121 is coaxial with and adapted to the corresponding spindle, and the connection with the spindle can be set according to conventional methods. The outer periphery of the core plate 12 is provided with an annular step, and one side of the outer periphery of the core plate 12 has a second stepped surface 122. The first stepped surface 113 and the second stepped surface 122 are in close contact. The inner diameter of the second stepped surface 122 is equal to the inner and outer diameters of the first stepped surface 113. The part of the core plate 12 structure located in the opening 112 forms the connecting part. One side of the connecting block 13 is in close contact with the second stepped surface 122 located in the opening 112. The connecting block 13 is detachably fixedly connected to the core plate 12. The circumference of the inner diameter of the connecting block 13 coincides with the circumference of the inner diameter of the second stepped surface 122.

[0024] Specifically, a third step is provided on the side of the connecting block 13 near the second step surface 122, and a third step surface 1311 is formed on this side. The third step surface 1311 is in close contact with the second step surface 122 located in the opening 112.

[0025] The connecting block 13, gear disk 11, and core disk 12 are all made of aluminum alloy, replacing the original plastic gears. This not only improves the strength and wear resistance of the gears, but also further reduces the wear of the rubber rollers caused by gear wear and the scratches on the can body caused by unstable can dropping. At the same time, it extends the service life of the equipment components and reduces the equipment maintenance cost.

[0026] Other aspects of the quick replacement device for the inlet star wheel waxing assembly of the necking machine described in this utility model are referred to in the prior art and will not be repeated here.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A quick-change device for the wax coating assembly of the inlet star wheel of a necking machine, characterized in that: The device includes a waxed gear, which comprises a connecting block, a gear disk, and a core disk. The gear disk and the core disk are detachably fixedly connected and coaxially arranged. The gear disk has an opening, and the connecting block is detachably installed in the opening. The connecting block has a meshing part, and the roots of the meshing teeth on the meshing part are located on the same circumference as the roots of the meshing teeth on the gear disk. The tips of the meshing teeth on the meshing part are located on the same circumference as the tips of the meshing teeth on the gear disk.

2. The quick-change device for the necking machine inlet star wheel waxing assembly according to claim 1, characterized in that: The opening is approximately U-shaped.

3. The quick-change device for the necking machine inlet star wheel waxing assembly according to claim 2, characterized in that: The central angle of the opening is less than 90°.

4. The quick-change device for the waxing assembly of the necking machine inlet star wheel according to claim 3, characterized in that: The gear disk has a first central hole, and the opening communicates with the first central hole.

5. The quick-change device for the waxing assembly of the necking machine inlet star wheel according to claim 4, characterized in that: The opening is provided with a connecting part, the outer diameter of which is smaller than the circumference diameter of the root of the meshing tooth on the gear disk.

6. The quick-change device for the waxing assembly of the necking machine inlet star wheel according to claim 5, characterized in that: The first central hole is a stepped hole, with a first stepped surface at one end inside the first central hole. The outer periphery of the core plate has an annular step, and one side of the outer periphery of the core plate has a second stepped surface. The first stepped surface and the second stepped surface are in close contact. The inner diameter of the second stepped surface is equal to the inner and outer diameters of the first stepped surface. The portion of the core plate structure located inside the opening forms the connecting part. One side of the connecting block is in close contact with the second stepped surface located inside the opening. The connecting block is detachably fixed to the core plate. The circumference of the inner diameter of the connecting block coincides with the circumference of the inner diameter of the second stepped surface.

7. The quick-change device for the waxing assembly of the necking machine inlet star wheel according to claim 6, characterized in that: The connecting block has a stepped structure on one side near the second stepped surface and forms a third stepped surface on this side, the third stepped surface being in close contact with the second stepped surface located within the opening.

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