Hollow waste suction rotary joint device for a round-to-round piercing roll
By using the hollow waste suction rotary joint device with circular punching roller, the connection and sealing structure between the main shaft rotary joint and the deep groove ball bearing solves the problem of insufficient air tightness caused by the gaps in the waste pipe joint, thus achieving the stability of vacuum waste suction and stable installation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZONGLI PRINTING & PACKING MACHINERY CO LTD
- Filing Date
- 2025-08-17
- Publication Date
- 2026-07-14
AI Technical Summary
Existing waste pipe joints have gaps when connected, resulting in insufficient airtightness, which may cause leaks or blockages and affect the waste cleaning speed.
The device employs a hollow waste suction rotary joint with a circular punching roller. The main shaft rotary joint is connected to a deep groove ball bearing. Hole and shaft elastic retaining rings are used to fill the gaps, and a double sealing structure is formed by combining a sealing groove and a sealing ring to enhance airtightness and stability.
It effectively avoids air pressure leakage, ensures the stability of negative pressure during vacuum waste suction, improves the airtightness and stability of equipment installation, and prevents seal failure caused by vibration.
Smart Images

Figure CN224492880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary joint technology for waste pipes, specifically a rotary joint device for hollow waste suction using a circular punching roller. Background Technology
[0002] On liquid packaging printing production lines, many liquid packages require a perforation process. The waste generated during this process needs to be cleaned up promptly. The ability to clean up waste in a timely manner has become a factor limiting printing speed. However, existing waste pipe joints have some shortcomings, such as:
[0003] Existing waste pipe joints often leave gaps at the connection points when connecting waste pipes. This can cause changes in air pressure within the waste pipe, leading to insufficient airtightness during waste transport and potentially causing leaks or blockages, thus slowing down the waste removal process.
[0004] Therefore, we propose a hollow waste suction rotary joint device for a circular punching roller to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a hollow waste suction rotary joint device for a circular punching roller, so as to solve the problem mentioned in the background art that the current waste pipe joints on the market have gaps when connecting waste pipes, resulting in insufficient air tightness and leakage or blockage.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a hollow waste suction rotary joint device for a circular punching roller, comprising a main shaft rotary joint and a waste channel connected to the main shaft rotary joint;
[0007] The spindle rotary joint is provided with a deep groove ball bearing on the outside, and a fixed frame body is provided inside the deep groove ball bearing. The deep groove ball bearing is connected to the shaft elastic retaining ring through the fixed frame body. The shaft elastic retaining ring is provided with a hole elastic retaining ring at the right end, and the spindle rotary joint is sealed to the deep groove ball bearing through the hole elastic retaining ring.
[0008] The deep groove ball bearing is provided with a handle mounting seat on the outside, and the handle body is connected to the outside of the handle mounting seat. A fixing bracket joint flange is also connected to the outside of the handle mounting seat, and the fixing bracket joint flange is connected to a right-angle elbow.
[0009] When the spindle rotary joint is connected to the deep groove ball bearing via the elastic retaining rings for the bore and shaft, the elastic retaining rings fill and seal the gaps between the spindle rotary joint and the deep groove ball bearing, thus preventing air pressure leakage. Furthermore, the design of the handle body and handle mounting base makes the deep groove ball bearing more stable when it is fixed, thereby increasing the airtightness and stability of the equipment during installation.
[0010] As a preferred technical solution of this utility model, a sealing groove is provided on the outer side of the spindle rotary joint, and the spindle rotary joint is connected to the sealing ring through the sealing groove, and the spindle rotary joint is sealed to the waste channel through the sealing ring.
[0011] The above technical solution enables the sealing groove and sealing ring to form a double sealing structure, filling the connection gap between the spindle rotary joint and the waste channel, preventing air pressure leakage in the pipeline, and ensuring the negative pressure stability during vacuum waste suction.
[0012] As a preferred technical solution of this utility model, the deep groove ball bearing fixes the elastic retaining ring for the hole and the elastic retaining ring for the shaft through the fixing frame body, and the outer side of the deep groove ball bearing is fixedly connected to other pipes by bolts.
[0013] The above technical solution enables the elastic retaining rings for the bore and shaft to fill the axial gap between the deep groove ball bearing and the spindle rotary joint under the constraint of the fixed frame body, thereby increasing the sealing performance of the equipment during installation.
[0014] As a preferred technical solution of this utility model, the outer side of the deep groove ball bearing is fixedly connected to the handle mounting seat and the flange of the fixing bracket by fixing bolts, and the outer side of the handle mounting seat is provided with an extension bracket, and the handle mounting seat is fixedly connected to the handle body by the extension bracket.
[0015] The above technical solution enables the fixing bolts to achieve a rigid connection between the deep groove ball bearing, the handle mounting seat and the fixed frame joint flange, ensuring no relative displacement during power transmission; the extension frame extends the operating arm of the handle body, making it easier to manually install or adjust the equipment with less effort.
[0016] As a preferred technical solution of this utility model, the fixed bracket joint flange is fixedly connected to the right-angle elbow, and the top of the right-angle elbow is connected to the vacuum waste suction pipe.
[0017] The above technical solution ensures the structural stability of the pipeline turning point by rigidly connecting the fixed bracket joint flange and the right-angle elbow, and avoids loosening of the interface due to the impact of waste materials.
[0018] As a preferred technical solution of this utility model, the spindle rotary joint is connected to the waste channel pipe through the spindle, and the waste channel is fixedly connected to the spindle rotary joint through a fixed flange.
[0019] The above technical solution can ensure that waste is transported smoothly in a straight line, avoiding accumulation caused by local eddies. The multi-point bolt connection of the fixed flange further enhances the connection strength between the two, can withstand the high-frequency vibration during vacuum waste suction, and prevents interface deformation or leakage after long-term use.
[0020] As a preferred technical solution of this utility model, the right-angle elbow is provided with a limiting frame at the top, and a limiting shaft is provided at the top of the limiting frame, and a sealing frame is provided at the top of the limiting shaft. The right-angle elbow is sealed to the vacuum waste suction pipe through the sealing frame.
[0021] The above technical solution enables the limiting frame and limiting shaft to accurately position the docking position of the right-angle elbow and the vacuum suction pipe, ensuring that the sealing frame completely covers the connection gap. The elastic sealing structure of the sealing frame can adapt to slight deviations of different pipe diameters, while enhancing the negative pressure resistance at the interface.
[0022] Compared with the prior art, the beneficial effects of this utility model are: when the spindle rotary joint is connected to the deep groove ball bearing through the elastic retaining ring for the hole and the elastic retaining ring for the shaft, the gap between the spindle rotary joint and the deep groove ball bearing is filled and sealed by the elastic retaining ring for the hole and the elastic retaining ring for the shaft, thereby preventing air pressure leakage. Furthermore, the design of the handle body and the handle mounting seat makes the deep groove ball bearing more stable when it is fixed, thereby increasing the airtightness and stability of the equipment during installation.
[0023] Furthermore, by setting up the sealing groove and the sealing ring, the sealing groove and the sealing ring can form a double sealing structure, fill the connection gap between the spindle rotary joint and the waste channel, avoid air pressure leakage in the pipeline, and ensure the negative pressure stability during vacuum waste suction.
[0024] Furthermore, by setting up the limiting frame and the sealing frame, the limiting frame and the limiting shaft can accurately position the docking position of the right-angle elbow and the vacuum suction pipe, ensuring that the sealing frame completely covers the connection gap. The elastic sealing structure of the sealing frame can adapt to the slight deviation of different pipe diameters, while enhancing the negative pressure resistance at the interface. Attached Figure Description
[0025] Figure 1 This is a front view of the structure of this utility model;
[0026] Figure 2 This is a front view of the disassembled structure of this utility model.
[0027] Figure 3 This is a three-dimensional structural diagram of the spindle rotary joint of this utility model;
[0028] Figure 4This is a cross-sectional structural diagram of the connection between the spindle rotary joint and the waste channel of this utility model;
[0029] Figure 5 This is a front view of the elevation structure of Embodiment 2 of this utility model.
[0030] In the diagram: 1. Spindle rotary joint; 101. Sealing groove; 2. Sealing ring; 3. Hole elastic retaining ring; 4. Fixing frame body; 5. Deep groove ball bearing; 6. Shaft elastic retaining ring; 7. Handle body; 8. Handle mounting base; 801. Extension frame; 9. Fixing frame joint flange; 10. Right angle elbow; 11. Waste channel; 12. Vacuum waste suction pipe; 13. Limiting frame; 14. Limiting shaft; 15. Sealing frame. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0032] To address the problem of insufficient airtightness leading to leaks or blockages caused by gaps left in existing waste pipe joints during waste pipe connection, the following solution is disclosed. Please refer to [link / reference]. Figures 1-4 This utility model provides a technical solution: a hollow waste suction rotary joint device for a circular punching roller, including a main shaft rotary joint 1 and a waste channel 11 connected to the main shaft rotary joint 1;
[0033] A deep groove ball bearing 5 is provided on the outside of the spindle rotary joint 1, and a fixed frame body 4 is provided inside the deep groove ball bearing 5. The deep groove ball bearing 5 is connected to the shaft elastic retaining ring 6 through the fixed frame body 4. The shaft elastic retaining ring 6 has a hole elastic retaining ring 3 at its right end, and the outside of the spindle rotary joint 1 is sealed to the deep groove ball bearing 5 through the hole elastic retaining ring 3.
[0034] The deep groove ball bearing 5 is provided with a handle mounting seat 8 on the outside, and a handle body 7 is connected to the outside of the handle mounting seat 8. A fixing bracket joint flange 9 is also connected to the outside of the handle mounting seat 8, and the fixing bracket joint flange 9 is connected to a right angle elbow 10.
[0035] The spindle rotary joint 1 has a sealing groove 101 on the outside, and the spindle rotary joint 1 is connected to the sealing ring 2 through the sealing groove 101. The spindle rotary joint 1 is sealed to the waste channel 11 through the sealing ring 2. The deep groove ball bearing 5 is fixed to the hole elastic retaining ring 3 and the shaft elastic retaining ring 6 through the fixing frame body 4. The outer side of the deep groove ball bearing 5 is fixed to other pipes by bolts.
[0036] The outer side of the deep groove ball bearing 5 is fixedly connected to the handle mounting seat 8 and the fixed bracket joint flange 9 by fixing bolts, and the outer side of the handle mounting seat 8 is provided with an extension bracket 801, and the handle mounting seat 8 is fixedly connected to the handle body 7 through the extension bracket 801.
[0037] The fixed bracket joint flange 9 is fixedly connected to the right angle elbow 10, and the top of the right angle elbow 10 is connected to the vacuum waste suction pipe 12. The main shaft rotary joint 1 is connected to the waste channel 11 through the main shaft, and the waste channel 11 is fixedly connected to the main shaft rotary joint 1 through the fixed flange.
[0038] Example 2 differs from Example 1 in that, as Figure 5 As shown: The right-angle elbow 10 is provided with a limiting frame 13 at the top, and a limiting shaft 14 is provided at the top of the limiting frame 13, and a sealing frame 15 is provided at the top of the limiting shaft 14. The right-angle elbow 10 is sealed to the vacuum waste suction pipe 12 through the sealing frame 15. When the right-angle elbow 10 is connected to the vacuum waste suction pipe 12, the top of the right-angle elbow 10 will be connected to the limiting frame 13. Then, the position of the limiting frame 13 and the sealing frame 15 is adjusted by the limiting shaft 14 so that the limiting frame 13 and the sealing frame 15 are fixedly attached. Then, the sealing frame 15 is sealed to the vacuum waste suction pipe 12, thereby ensuring that the right-angle elbow 10 and the vacuum waste suction pipe 12 are sealed together.
[0039] Working principle: When using the hollow waste suction rotary joint device of the circular punching roller, first assemble and connect the components: connect the main shaft rotary joint 1 to the waste channel 11 through the main shaft, and fix the waste channel 11 to the main shaft rotary joint 1 through the fixed flange. At this time, the sealing ring 2 in the sealing groove 101 on the outside of the main shaft rotary joint 1 is tightly fitted with the inner wall of the waste channel 11 to form an initial seal.
[0040] After the spindle rotary joint 1 is connected to the waste channel 11, a deep groove ball bearing 5 is installed on the outside of the spindle rotary joint 1. The elastic retaining ring 3 for the hole and the elastic retaining ring 6 for the shaft are fixed inside the deep groove ball bearing 5 by the fixing bracket body 4 to fill the axial gap between the deep groove ball bearing 5 and the spindle rotary joint 1 and enhance the connection sealing. The outside of the deep groove ball bearing 5 is fixed to the handle mounting seat 8 and the fixing bracket joint flange 9 by fixing bolts. The handle mounting seat 8 is connected to the handle body 7 by the extension bracket 801 to facilitate gripping and adjustment during subsequent operation.
[0041] After assembly, the vacuum waste suction system is activated. The waste generated from drilling enters the spindle rotary joint 1 through the waste channel 11. Under vacuum negative pressure, it is transported to the vacuum waste suction pipe 12 through the right-angle elbow 10. During the process, the elastic retaining ring 3 for the hole, the elastic retaining ring 6 for the shaft, and the sealing ring 2 form a multiple seal to prevent air pressure leakage in the pipeline. The deep groove ball bearing 5 ensures the stability of the spindle rotary joint 1 during rotation and reduces seal failure caused by vibration.
[0042] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A rotary joint device for hollow waste suction in a circular punching roller, comprising a main shaft rotary joint (1) and a waste channel (11) connected to the main shaft rotary joint (1). Its features are: The spindle rotary joint (1) is provided with a deep groove ball bearing (5) on the outside, and a fixed frame body (4) is provided inside the deep groove ball bearing (5). The deep groove ball bearing (5) is connected to the shaft elastic retaining ring (6) through the fixed frame body (4). The shaft elastic retaining ring (6) is provided with a hole elastic retaining ring (3) at the right end. The spindle rotary joint (1) is sealed to the deep groove ball bearing (5) through the hole elastic retaining ring (3). The deep groove ball bearing (5) is provided with a handle mounting seat (8) on the outside, and a handle body (7) is connected to the outside of the handle mounting seat (8), and a fixing bracket joint flange (9) is connected to the outside of the handle mounting seat (8), and the fixing bracket joint flange (9) is connected to a right angle elbow (10).
2. The hollow waste suction rotary joint device for circular punching rollers according to claim 1, characterized in that, The main spindle rotary joint (1) is provided with a sealing groove (101) on the outside, and the main spindle rotary joint (1) is connected to the sealing ring (2) through the sealing groove (101), and the main spindle rotary joint (1) is sealed to the waste channel (11) through the sealing ring (2).
3. The hollow waste suction rotary joint device for circular punching rollers according to claim 1, characterized in that, The deep groove ball bearing (5) is fixed by the hole elastic retaining ring (3) and the shaft elastic retaining ring (6) through the fixing frame body (4), and the outer side of the deep groove ball bearing (5) is fixedly connected to other pipes by bolts.
4. The hollow waste suction rotary joint device for circular punching rollers according to claim 3, characterized in that, The outer side of the deep groove ball bearing (5) is fixedly connected to the handle mounting seat (8) and the fixing bracket joint flange (9) by fixing bolts, and the outer side of the handle mounting seat (8) is provided with an extension bracket (801), and the handle mounting seat (8) is fixedly connected to the handle body (7) by the extension bracket (801).
5. The hollow waste suction rotary joint device for circular punching rollers according to claim 4, characterized in that, The fixed bracket joint flange (9) is fixedly connected to the right angle elbow (10), and the top of the right angle elbow (10) is connected to the vacuum waste suction pipe (12).
6. The hollow waste suction rotary joint device for circular punching rollers according to claim 2, characterized in that, The spindle rotary joint (1) is connected to the waste channel (11) via the spindle, and the waste channel (11) is fixedly connected to the spindle rotary joint (1) via a fixed flange.
7. The hollow waste suction rotary joint device for circular punching rollers according to claim 5, characterized in that, The right-angle elbow (10) is provided with a limiting frame (13) at the top, and a limiting shaft (14) is provided at the top of the limiting frame (13), and a sealing frame (15) is provided at the top of the limiting shaft (14). The right-angle elbow (10) is sealed to the vacuum waste suction pipe (12) through the sealing frame (15).