Lubricating device for drawing forming of copper pipe
By designing a lubrication device for copper tube stretching and forming with a recycling mechanism and a flow guiding mechanism, the problem of lubricating oil waste is solved, the efficient recycling and reuse of lubricating oil is achieved, the lubrication effect on the surface of the copper tube is improved, and the maintenance process is simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-28
AI Technical Summary
Existing copper tube stretching and forming equipment suffers from serious lubricant waste during the lubrication process and has poor lubrication effect.
A lubrication device for copper tube stretching and forming, including a recycling mechanism and a flow guiding mechanism, is designed. Through the cooperation of the flow guiding mechanism and the filter screen, the lubricating oil can be efficiently recycled and reused. The oil pump is used to evenly cover the outer wall of the copper tube with lubricating oil. The overflowing lubricating oil is guided through the funnel to the filter screen for impurity separation and then flows back to the lubricating oil tank. The dual positioning structure ensures the coaxial accuracy of the device, and the maintenance process is simplified through the transparent observation window and modular filter screen.
It enables efficient recovery and recycling of lubricating oil, reduces resource waste, ensures lubrication effect on copper pipe surface, and simplifies maintenance process.
Smart Images

Figure CN224168365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper tube processing, specifically a lubrication device for copper tube stretching and forming. Background Technology
[0002] The lubrication device for copper tube stretching is a core piece of equipment to ensure the quality and efficiency of copper tube manufacturing. It provides lubrication for the stretching of copper tubes to reduce wear and improve the smoothness of the copper tube surface. However, the lubrication device requires a large amount of lubricating oil to be coated on the steel tube, and the oil is squeezed out during the stretching process, resulting in resource waste. Therefore, there is an urgent need for a lubrication device for copper tube stretching to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a lubrication device for copper tube stretching and forming, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a lubrication device for copper tube stretching and forming, comprising a recycling mechanism and a flow guiding mechanism. The flow guiding mechanism is disposed on the recycling mechanism. The recycling mechanism includes a lubricating oil tank, a waste oil tank, and a support frame. A stretching die is fixedly installed in the middle of the support frame. A limit ring is fixedly connected to the outer side of the end of the stretching die away from the support frame. A support inclined frame is fixedly installed in the middle of the top of the lubricating oil tank. A filter screen is movably engaged at the top of the support inclined frame. The flow guiding mechanism includes an upper cover plate. A lower cover plate is fixedly installed at the bottom of the upper cover plate. An oil drain pipe is fixedly connected to one end of the top of the upper cover plate.
[0005] Preferably, the upper cover plate and the lower cover plate are respectively fixedly connected to a fixing collar at the ends away from the oil drain pipe, and a funnel is fixedly connected to the bottom end of the lower cover plate away from the fixing collar.
[0006] Preferably, an oil pump is fixedly installed on one side of the top of the lubricating oil tank, the input end of the oil pump is located at the bottom of the inside of the lubricating oil tank, and a delivery pipe is fixedly installed on the output end of the oil pump.
[0007] Preferably, the end of the delivery pipe away from the oil pump is fixedly installed at the top of the oil discharge pipe.
[0008] Preferably, the upper cover plate and the lower cover plate are fixedly installed on the outside of the limiting ring, and the two fixing collars wrap around the outside of the stretching die.
[0009] Preferably, the lubricating oil tank is provided with observation windows at the middle of both ends, and the observation windows are made of transparent material.
[0010] Preferably, the waste oil tank is located on one side of the lubricating oil tank, the top of the supporting inclined frame near the waste oil tank is designed to slope downwards, the filter screen is located directly below the funnel, and the downward-sloping end of the filter screen is located above the waste oil tank.
[0011] Preferably, the end of the stretching die near the limiting retaining ring is the input end of the copper tube.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention achieves efficient recycling of lubricating oil through the inclined design of the flow guiding mechanism and the filter screen. The oil pump evenly covers the outer wall of the copper pipe with lubricating oil through the oil discharge pipe. The overflowing lubricating oil is guided to the filter screen through the funnel. Impurities are automatically separated into the waste oil tank. The purified lubricating oil flows back to the lubricating oil tank for reuse. The limiting retaining ring and the fixing collar double positioning fix the flow guiding mechanism on the stretching die, ensuring the coaxial accuracy of the stretching die and the flow guiding mechanism. The design of the transparent observation window and the modular filter screen simplifies the maintenance process and makes lubricating oil addition convenient and quick. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present utility model;
[0015] Figure 2 This is a schematic diagram of the recycling mechanism in this utility model;
[0016] Figure 3 This is a schematic diagram of the flow guiding mechanism in this utility model.
[0017] In the diagram: 1-Recycling mechanism; 2-Flow guiding mechanism; 3-Lubricating oil tank; 4-Waste oil tank; 5-Support frame; 6-Stretching die; 7-Limiting retaining ring; 8-Supporting inclined frame; 9-Filter screen; 10-Oil pump; 11-Transfer pipe; 12-Observation window; 13-Upper cover plate; 14-Lower cover plate; 15-Oil drain pipe; 16-Fixing collar; 17-Function funnel. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3This utility model provides an embodiment of a lubrication device for copper tube stretching and forming, comprising a recovery mechanism 1 and a flow guiding mechanism 2. The flow guiding mechanism 2 is disposed on the recovery mechanism 1. The recovery mechanism 1 includes a lubricating oil tank 3, a waste oil tank 4, and a support frame 5. A stretching die 6 is fixedly installed in the middle of the support frame 5. A limit ring 7 is fixedly connected to the outer side of the end of the stretching die 6 away from the support frame 5. The end of the stretching die 6 near the limit ring 7 is the input end of the copper tube. A support inclined frame 8 is fixedly installed in the middle of the top of the lubricating oil tank 3. A filter screen 9 is movably engaged at the top of the support inclined frame 8 to filter the waste oil. The flow of lubricating fluid removes large particles of impurities to avoid damaging the copper tube. The flow guiding mechanism 2 includes an upper cover plate 13, and a lower cover plate 14 is fixedly installed at the bottom of the upper cover plate 13. The detachable assembly structure facilitates updates and maintenance, and makes it more convenient and quick to replace the stretching die 6. An oil drain pipe 15 is fixedly connected to one end of the top of the upper cover plate 13. Fixed collars 16 are fixedly connected to the ends of the upper cover plate 13 and the lower cover plate 14 away from the oil drain pipe 15, respectively. A funnel 17 is fixedly connected to the bottom end of the lower cover plate 14 away from the fixed collar 16. The funnel 17 guides the lubricating oil overflowing during the stretching of the copper tube.
[0020] An oil pump 10 is fixedly installed on one side of the top of the lubricating oil tank 3. The input end of the oil pump 10 is located at the bottom of the interior of the lubricating oil tank 3. A delivery pipe 11 is fixedly installed on the output end of the oil pump 10. The end of the delivery pipe 11 away from the oil pump 10 is fixedly installed at the top of the drain pipe 15. The oil pump 10 delivers the lubricating oil inside the lubricating oil tank 3 to the drain pipe 15 through the delivery pipe 11. The drain pipe 15 discharges the lubricating oil to the outside of the copper pipe located below the upper cover plate 13. The downward flow of the lubricating oil then circulates the lubricating oil to the outside of the copper pipe. The upper cover plate 13 and the lower cover plate 14 are fixedly installed on the outside of the limiting ring 7. Two fixing collars 16 are wrapped around the outside of the stretching die 6. The flow guiding mechanism 2 is fixed by the upper and lower fixing collars 16 wrapping around the outside of the stretching die 6. The double fixation of the limiting ring 7 and the two fixing collars 16 strengthens the fixing strength of the flow guiding mechanism 2 on the outside of the stretching die 6. In addition, the limiting ring 7 is used to prevent the lubricating oil from flowing into the inside of the funnel 17, so as to avoid the lubricating oil overflow and waste of resources.
[0021] The lubricating oil tank 3 has observation windows 12 at both ends of the middle section. The observation windows 12 are made of transparent material. The transparent design of the observation windows 12 makes it convenient for users to observe the amount of lubricating oil used and the amount of lubricating oil in the lubricating oil tank 3 in real time, so as to make it convenient to replenish the lubricating oil in time. When replenishing the lubricating oil, simply lift the filter screen 9 and inject the new lubricating oil into the lubricating oil tank 3 through the top of the supporting inclined frame 8.
[0022] Waste oil tank 4 is located on one side of lubricating oil tank 3. The top of the supporting inclined frame 8 is designed to slope downwards near the waste oil tank 4. The filter screen 9 is located directly below the funnel 17. The downward-sloping end of the filter screen 9 is located above the waste oil tank 4. The inclined design of the top of the supporting inclined frame 8 makes the filter screen 9 tilted. The tilted placement of the filter screen 9 causes the lubricating oil discharged inside the filter screen 9 to flow towards the waste oil tank 4 and be filtered during the flow. The lubricating oil that passes through the filter screen 9 flows back into the interior of the lubricating oil tank 3 to form a cycle. The lubricating oil containing impurities filtered out by the filter screen 9 flows into the interior of the waste oil tank 4 for collection and reuse.
[0023] Working principle: During use, lubricating oil is first injected into the lubricating oil tank 3 through the supporting inclined frame 8. Then, the filter screen 9 is clipped to the top of the supporting inclined frame 8. Next, the copper tube is inserted into the inside of the stretching die 6 for stretching operations. Before starting the stretching, the oil pump 10 is turned on. The oil pump 10 delivers the lubricating oil inside the lubricating oil tank 3 to the oil drain pipe 15 through the delivery pipe 11. The lubricating oil in the oil drain pipe 15 flows downward and wraps around the outside of the copper tube. Then, the stretching is started, and the stretching equipment pulls the copper tube out from inside the stretching die 6 and shapes it. Before entering the drawing die 6, the tube is coated with lubricating oil for lubrication. During the drawing of the copper tube, the lubricating oil on the outside of the copper tube is squeezed out by the inside of the drawing die 6 and flows into the funnel 17. The funnel 17 guides the discharged lubricating oil to the inside of the filter screen 9 for filtration. The lubricating oil filtered through the filter screen 9 flows back to the inside of the lubricating oil tank 3. The lubricating oil mixed with large particles is filtered out and guided by the filter screen 9 to the waste oil tank 4 for storage and backup. The staff can observe the amount of lubricating oil in the lubricating oil tank 3 through the observation window 12 so as to replenish the lubricating oil in time.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lubrication device for copper tube stretching and forming, comprising a recovery mechanism (1) and a flow guiding mechanism (2), characterized in that: The flow guiding mechanism (2) is set on the recycling mechanism (1). The recycling mechanism (1) includes a lubricating oil tank (3), a waste oil tank (4), and a support frame (5). A stretching die (6) is fixedly installed in the middle of the support frame (5). A limit ring (7) is fixedly connected to the outer side of the stretching die (6) away from the support frame (5). A support inclined frame (8) is fixedly installed in the middle of the top of the lubricating oil tank (3). A filter screen (9) is movably snapped into the top of the support inclined frame (8). The flow guiding mechanism (2) includes an upper cover plate (13). A lower cover plate (14) is fixedly installed at the bottom of the upper cover plate (13). An oil drain pipe (15) is fixedly connected to one end of the top of the upper cover plate (13).
2. The lubrication device for copper tube stretching and forming according to claim 1, characterized in that: The upper cover plate (13) and the lower cover plate (14) are respectively fixedly connected to a fixing collar (16) at the end away from the oil drain pipe (15), and a funnel (17) is fixedly connected to the bottom end of the lower cover plate (14) away from the fixing collar (16).
3. The lubrication device for copper tube stretching and forming according to claim 1, characterized in that: An oil pump (10) is fixedly installed on one side of the top of the lubricating oil tank (3). The input end of the oil pump (10) is located at the bottom of the inside of the lubricating oil tank (3). A delivery pipe (11) is fixedly installed on the output end of the oil pump (10).
4. The lubrication device for copper tube stretching and forming according to claim 3, characterized in that: The end of the delivery pipe (11) away from the oil pump (10) is fixedly installed at the top of the oil discharge pipe (15).
5. A lubrication device for copper tube stretching and forming according to claim 2, characterized in that: The upper cover plate (13) and the lower cover plate (14) are fixedly installed on the outside of the limiting ring (7), and the two fixing collars (16) are wrapped around the outside of the stretching die (6).
6. The lubrication device for copper tube stretching and forming according to claim 1, characterized in that: The lubricating oil tank (3) has observation windows (12) at both ends of the middle section, and the observation windows (12) are made of transparent material.
7. A lubrication device for copper tube stretching and forming according to claim 2, characterized in that: The waste oil tank (4) is located on one side of the lubricating oil tank (3). The top of the support frame (8) is inclined downward at the end near the waste oil tank (4). The filter screen (9) is located directly below the funnel (17). The downward-inclined end of the filter screen (9) is located above the waste oil tank (4).
8. A lubrication device for copper tube stretching and forming according to claim 1, characterized in that: The end of the stretching die (6) near the limiting ring (7) is the input end of the copper tube.