Mechanical lubricating device for baling press
By regulating the atomization of lubricating oil through a venturi tube and a pressure regulating valve, combined with a float-type liquid level sensor and an audible and visual alarm module, the problems of uneven lubrication and insufficient automation in the baling machine are solved, thereby improving the lubrication effect and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-07-24
AI Technical Summary
Existing baling machine lubrication devices rely on unstable air pressure, resulting in uneven atomization of lubricating oil, inability to dynamically adjust the amount of lubrication, and lack of automatic detection and alarm functions, which affects production quality and equipment stability.
The system employs a venturi tube combined with a pressure regulating valve and a flow regulating valve to achieve stable control of oil mist concentration. A float-type liquid level sensor and an audible and visual alarm module enable automatic detection and alarm, ensuring uniform lubrication and timely replenishment.
It achieves uniform and stable lubrication, reduces wear, improves equipment operating stability and service life, and supports fully automated production.
Smart Images

Figure CN224551262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for baling machines, specifically a mechanical lubrication device for baling machines. Background Technology
[0002] In industrial production, baling machines are key equipment used to bundle and secure various materials (such as steel, cardboard boxes, and plastics). They use a mechanical transmission system to drive the strapping to tighten and weld, achieving efficient material packaging. They are widely used in metallurgy, logistics, and manufacturing. The core moving components of a baling machine include the transmission chain, gear set, bearings, guide wheels, and strapping tightening mechanism. During high-frequency, high-load operation, these components experience continuous friction at their contact surfaces. If lubrication is not timely or sufficient, problems such as accelerated wear, jamming, and even breakage can easily occur, directly affecting the baling machine's operational stability, strapping accuracy, and service life.
[0003] A search revealed that Chinese patent application number CN202022055152.5 discloses an automatic lubrication device for a steel baling machine. The device includes a housing with a mixing chamber inside. One end of the mixing chamber is connected to an air inlet pipe, and the other end is connected to a lubricating oil chamber via an oil extraction pipe. A nozzle is installed at the output end of the mixing chamber, and a solenoid valve is installed at the input end of the nozzle. This device prevents the automatic baling machine from scratching or damaging the wire rod, improving the surface quality of the wire rod.
[0004] The above-mentioned utility model has the following problems: The device relies on air pressure to create negative pressure to draw in lubricating oil. If the air source pressure is unstable (such as fluctuations in air compressor output), it will lead to uneven oil mist concentration. Too high an air pressure may cause excessive atomization of the lubricating oil, resulting in waste; too low an air pressure may not be able to form sufficient negative pressure, leading to insufficient lubrication.
[0005] The amount of lubricating oil drawn in is determined solely by air pressure and the inner diameter of the oil extraction pipe, and cannot be dynamically adjusted according to working conditions such as the speed of the baling line and the load. When the baling machine is running at high speed, a fixed amount of oil may not be sufficient to meet the lubrication requirements.
[0006] When the lubricating oil is depleted, the pipeline is blocked, or the air pressure is insufficient, the device cannot automatically detect and alarm, which may cause poor lubrication of the packaging line, affecting production quality. In addition, the solenoid valve needs to be manually operated to control the switch, and it cannot be linked with the start and stop of the packaging machine, making it difficult to achieve fully automated production.
[0007] Therefore, those skilled in the art have provided a mechanical lubrication device for a baling machine to solve the problems mentioned in the background art. Utility Model Content
[0008] The purpose of this invention is to provide a mechanical lubrication device for a baling machine to solve the problems mentioned in the background art.
[0009] To achieve the above objectives, this utility model provides the following technical solution: A mechanical lubrication device for a baling machine includes an oil reservoir with an open upper end. A sealing cover is detachably mounted on the open end via bolts. A bracket is fixedly mounted on the upper end of the sealing cover via bolts. A venturi tube is detachably mounted on the upper end of the bracket via bolts. An air inlet pipe is fixedly connected to the converging section of the venturi tube, and an oil extraction pipe is fixedly connected to the throat of the venturi tube. The end of the oil extraction pipe passes through the sealing cover and extends to the inner bottom of the oil reservoir. An oil spray pipe is fixedly connected to the diffuser section of the venturi tube.
[0010] As a further embodiment of this utility model: the air intake pipe is connected to an external air source, and a pressure regulating valve and a flow regulating valve are installed sequentially on the air intake pipe along the airflow direction.
[0011] As a further improvement of this utility model: a solenoid valve is installed on the fuel injection pipe, and a nozzle is connected to the end of the fuel injection pipe via a quick connector.
[0012] As a further improvement of this utility model: a float-type liquid level sensor is fixedly installed on the upper end of the sealed box cover, and the detection part of the float-type liquid level sensor is located inside the oil storage tank.
[0013] As a further improvement of this utility model: the front outer wall of the oil tank is provided with an audible and visual alarm module, which includes a red LED light and a buzzer.
[0014] As a further improvement of this utility model, the audible and visual alarm module, flow regulating valve, pressure regulating valve, solenoid valve and float-type liquid level sensor are all electrically connected to an external controller.
[0015] As a further embodiment of this utility model: the bracket is an L-shaped metal plate structure, including a horizontal plate and a vertical plate. The horizontal plate is fixedly connected to the sealing box cover by bolts, and the vertical plate has an oblong hole. The Venturi tube is detachably connected to the vertical plate by bolts passing through the oblong hole.
[0016] As a further improvement of this utility model: the oil extraction pipe is a straight metal pipe, and its connection to the throat of the venturi tube is by welding. The distance between the end of the oil extraction pipe extending to the bottom of the oil storage tank and the bottom surface of the oil storage tank is 5-10mm.
[0017] Compared with existing technologies, the advantages of this invention are as follows: By utilizing the negative pressure atomization principle of the Venturi tube, combined with the precise control of the pressure regulating valve and flow control valve, stable oil mist concentration and uniform lubrication effect are ensured, effectively reducing wear on baler components; the oil extraction pipe extends to the bottom of the oil storage tank to fully utilize the lubricating oil and reduce waste; the detachable structure of the bracket and the quick-connect design of the nozzle facilitate device maintenance and replacement of nozzles of different specifications, adapting to various lubrication needs; the linkage between the float-type liquid level sensor and the audible and visual alarm module can promptly warn of oil shortage, preventing equipment failure due to insufficient lubrication; the overall structure is simple and easy to operate, significantly improving the operational stability and service life of the baler. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a mechanical lubrication device for a baling machine.
[0019] Figure 2 This is a schematic diagram of the overall structure of a lubrication device for a packaging machine, specifically a Tully tube.
[0020] Figure 3 This is a front view of a mechanical lubrication device for a packing machine.
[0021] Figure 4 This is a schematic diagram of the internal structure of the oil reservoir in a mechanical lubrication device for a baling machine.
[0022] In the diagram: 1. Oil reservoir; 2. Sealed tank cover; 3. Bracket; 4. Venturi tube; 5. Air inlet pipe; 6. Injection pipe; 7. Oil extraction pipe; 8. Buzzer; 9. Red LED light; 10. Flow control valve; 11. Pressure regulating valve; 12. Solenoid valve; 13. Nozzle; 14. Float-type liquid level sensor. Detailed Implementation
[0023] 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. Example
[0024] Reference Figures 1-4This embodiment provides a mechanical lubrication device for a baling machine, including an oil storage tank 1. The upper end of the oil storage tank 1 is an open end, and a sealing cover 2 is detachably installed at the open end by bolts. A bracket 3 is fixedly installed at the upper end of the sealing cover 2 by bolts. A venturi tube 4 is detachably installed at the upper end of the bracket 3 by bolts. An air inlet pipe 5 is fixedly connected to the converging section of the venturi tube 4. An oil extraction pipe 7 is fixedly connected to the throat of the venturi tube 4. The end of the oil extraction pipe 7 passes through the sealing cover 2 and extends to the inner bottom of the oil storage tank 1. An oil spray pipe 6 is fixedly connected to the diffuser section of the venturi tube 4. Example
[0025] Reference Figures 1-4 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that the air intake pipe 5 is connected to an external air source, and a pressure regulating valve 11 and a flow regulating valve 10 are installed sequentially on the air intake pipe 5 along the airflow direction. A solenoid valve 12 is installed on the fuel injection pipe 6, and a nozzle 13 is connected to the end of the fuel injection pipe 6 through a quick connector. A float-type liquid level sensor 14 is fixedly installed on the upper end of the sealing box cover 2, and the detection part of the float-type liquid level sensor 14 is located inside the oil storage tank 1.
[0026] Furthermore, an audible and visual alarm module is provided on the front outer wall of the oil storage tank 1. The audible and visual alarm module includes a red LED light 9 and a buzzer 8. The audible and visual alarm module, the flow regulating valve 10, the pressure regulating valve 11, the solenoid valve 12, and the float-type liquid level sensor 14 are all electrically connected to an external controller.
[0027] Furthermore, the bracket 3 is an L-shaped metal plate structure, including a horizontal plate and a vertical plate. The horizontal plate is fixedly connected to the sealing box cover 2 by bolts, and the vertical plate has an oblong hole. The Venturi tube 4 is detachably connected to the vertical plate by bolts passing through the oblong hole.
[0028] Furthermore, the oil extraction pipe 7 is a straight metal pipe, and its connection to the throat of the venturi tube 4 is by welding. The distance between the end of the oil extraction pipe 7 extending to the bottom of the oil storage tank 1 and the bottom surface of the oil storage tank 1 is 5-10mm.
[0029] When the mechanical lubrication device for the baling machine provided by this utility model is working, the external air source delivers airflow through the air inlet pipe 5. After the pressure is stabilized by the pressure regulating valve 11 and the flow rate is regulated by the flow regulating valve 10, the airflow enters the contraction section of the venturi tube 4. The airflow accelerates in the contraction section and forms a negative pressure in the throat. The lubricating oil in the oil storage tank 1 is drawn into the throat through the oil extraction pipe 7 and fully mixed with the high-speed airflow in the diffusion section to form an oil mist. The oil mist is delivered to the nozzle 13 through the oil spray pipe 6. The timing of the spray is controlled by the solenoid valve 12. Finally, the oil mist is precisely applied to the parts of the baling machine that need lubrication through the nozzle 13. The float-type liquid level sensor 14 monitors the oil level in the oil storage tank 1 in real time. When the oil level is lower than the threshold, the sound and light alarm module consisting of the red LED light 9 on the outer wall of the oil storage tank 1 and the buzzer 8 is triggered to remind the operator to add lubricating oil. The external controller coordinates the coordinated operation of all components. 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.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A mechanical lubrication device for a baling machine, comprising an oil reservoir (1), characterized in that, The upper end of the oil tank (1) is an open end, and a sealing cover (2) is detachably installed on the open end by bolts. A bracket (3) is fixedly installed on the upper end of the sealing cover (2) by bolts. A venturi tube (4) is detachably installed on the upper end of the bracket (3) by bolts. An air inlet pipe (5) is fixedly connected to the converging section of the venturi tube (4). An oil extraction pipe (7) is fixedly connected to the throat of the venturi tube (4). The end of the oil extraction pipe (7) passes through the sealing cover (2) and extends to the inner bottom of the oil tank (1). An oil injection pipe (6) is fixedly connected to the diffuser section of the venturi tube (4).
2. The mechanical lubrication device for a baling machine according to claim 1, characterized in that, The air intake pipe (5) is connected to an external air source, and a pressure regulating valve (11) and a flow regulating valve (10) are installed sequentially on the air intake pipe (5) along the airflow direction.
3. The mechanical lubrication device for a baling machine according to claim 2, characterized in that, A solenoid valve (12) is installed on the fuel injection pipe (6), and a nozzle (13) is connected to the end of the fuel injection pipe (6) via a quick connector.
4. A mechanical lubrication device for a baling machine according to claim 3, characterized in that, A float-type liquid level sensor (14) is fixedly installed on the upper end of the sealed box cover (2), and the detection part of the float-type liquid level sensor (14) is located inside the oil storage tank (1).
5. A mechanical lubrication device for a baling machine according to claim 4, characterized in that, The front outer wall of the oil storage tank (1) is provided with an audible and visual alarm module, which includes a red LED light (9) and a buzzer (8).
6. A mechanical lubrication device for a baling machine according to claim 5, characterized in that, The audible and visual alarm module, flow regulating valve (10), pressure regulating valve (11), solenoid valve (12) and float-type liquid level sensor (14) are all electrically connected to an external controller.
7. A mechanical lubrication device for a baling machine according to claim 1, characterized in that, The bracket (3) is an L-shaped metal plate structure, including a horizontal plate and a vertical plate. The horizontal plate is fixedly connected to the sealing box cover (2) by bolts. The vertical plate has a waist-shaped hole. The Venturi tube (4) is detachably connected to the vertical plate by bolts passing through the waist-shaped hole.
8. A mechanical lubrication device for a baling machine according to claim 1, characterized in that, The oil extraction pipe (7) is a straight metal pipe, and its connection with the throat of the venturi tube (4) is by welding. The distance between the end of the oil extraction pipe (7) extending to the bottom of the oil storage tank (1) and the bottom surface of the oil storage tank (1) is 5-10 mm.
Citation Information
Patent Citations
Automatic lubricating device of steel packing machine
CN213011330U