An intelligent lubrication system for sewing machines

Abstract

The present invention relates to an intelligent lubrication system for a sewing machine applied in the technical field of sewing machines, comprising a circulating oil circuit system, an oil outlet module, an oil pump, an oil tank, a barrel, an oil nozzle, an oil suction rod and a pressure plug. The present invention lays the circulating oil circuit system so that the oil pump drives the lubricating oil to circulate, effectively improves the flow speed of the lubricating oil in the pipeline, effectively avoids the precipitates in the lubricating oil from staying in the pipeline, and further effectively avoids the blockage of the pipeline. When the oil outlet module performs an oiling operation, the pressure plug in the oil nozzle rises, and the released oil suction rod absorbs the flowing lubricating oil. Then the pressure plug descends and squeezes the oil suction rod again. The absorbed lubricating oil is squeezed out and dripped onto a position to be lubricated, which is convenient for the lubrication system to automatically oil the sewing machine, and effectively improves the use effect of the sewing machine.

Description

Technical Field

[0001] The invention relates to a lubrication system, and in particular to an intelligent lubrication system for sewing machines, which is applied in the technical field of sewing machines. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing material are interwoven or sewn together. The internal structure of a sewing machine is complex and there are many parts. There is friction when the parts rotate and when the parts transmit to each other. Lubricating oil needs to be dripped at designated locations for lubrication to reduce wear and increase the service life of the parts. The lubrication of the sewing machine is mainly completed by manual oiling by the operator or by laying pipelines and using an oil pump to inject oil.

[0003] The specification of Chinese invention patent CN202120764410.9 discloses "An automatic lubrication system for sewing machines and sewing machines". This patent uses the oil pipeline in the oil supply device to transport the lubricating oil to the parts to be lubricated in the sewing machine, which can avoid the lubricating oil from dripping on the machine and prevent the fabric from being soiled. In addition, the automatic lubrication system can automatically and continuously supply oil to the parts to be lubricated without stopping the machine for oil supply, thereby improving work efficiency.

[0004] In the above-mentioned patents and existing sewing machine lubrication systems, the lubricating oil delivery pipelines are mostly installed in a one-way manner, that is, the inlet end of the pipeline is in an oil storage structure, and the outlet end of the pipeline is in a lubrication structure. Since the amount of lubricating oil used is very low, the flow rate of the lubricating oil in the pipeline is slow or even stops flowing. The slowly flowing lubricating oil can easily allow precipitates to remain in the pipeline, causing blockage of the pipeline, which is not conducive to the automatic oiling of the sewing machine by the lubrication system, thereby affecting the use of the sewing machine. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the flow rate of the lubricating oil in the pipeline is slow or even stops flowing. The slowly flowing lubricating oil easily allows the precipitate to remain in the pipeline, causing the pipeline to be blocked, which is not conducive to the automatic oiling of the sewing machine by the lubrication system, thereby affecting the use of the sewing machine.

[0006] To solve the above problems, the present invention provides an intelligent lubrication system for a sewing machine, comprising an upper shaft and a lower shaft of the sewing machine, the lubrication system comprising a circulating oil circuit system laid on the outside of the upper shaft and the lower shaft, the circulating oil circuit system is fixedly connected with oil outlet modules corresponding to the positions to be lubricated of the upper shaft and the lower shaft, the input end of the circulating oil circuit system is fixedly connected with an oil pump, the oil pump is transmission-connected to the lower shaft, the input end of the oil pump is fixedly connected with an oil tank, and the output end of the circulating oil circuit system is connected with the oil tank; the oil outlet module is composed of a cylinder and an oil nozzle fixed on the outside thereof, the cylinder is connected with the circulating oil circuit system, an oil suction rod is sleeved inside the oil nozzle, the bottom end of the oil suction rod is fixedly connected to the outlet end of the oil nozzle, the top of the oil nozzle is movably connected with a pressure plug, and the pressure plug is fixedly connected to the top of the oil suction rod.

[0007] In the above-mentioned intelligent lubrication system for sewing machines, the circulating oil circuit system is used to realize the circulating flow of lubricating oil, thereby effectively improving the flow speed of lubricating oil in the pipeline, effectively preventing the precipitates in the lubricating oil from staying in the pipeline, and thus effectively preventing the pipeline from being blocked. The oil outlet module absorbs the flowing lubricating oil through the oil suction rod, and then through the squeezing of the plunger, the absorbed lubricating oil is dripped onto the position to be lubricated, which is convenient for the lubrication system to automatically oil the sewing machine, thereby effectively improving the use effect of the sewing machine.

[0008] As a further improvement of the present application, the pressure plug includes a lower plug column and an upper plug column, and the lower plug column is threadedly connected to the upper plug column at both ends, the diameter of the lower plug column corresponds to the inner diameter of the oil nozzle, the oil suction rod is made of sponge material, and the threadedly connected lower plug column and upper plug column can realize the length adjustment of the pressure plug, and then adjust the contact surface between the oil suction rod and the lubricating oil, thereby adjusting the amount of lubricating oil absorbed.

[0009] As a further improvement of the present application, the circulating oil circuit system is composed of multiple oil pipes, one end of the oil pipe connected to the oil pump is uniformly and fixedly connected to an oil circuit distributor, and one end of the oil pipe connected to the oil tank is uniformly and fixedly connected to a return main pipe. Multiple oil pipes are arranged in series according to the positions to be lubricated of the sewing machine to realize the laying and installation of the circulating oil circuit system. The oil circuit distributor facilitates the oil pump to supply oil to the multiple oil pipes, and the return main pipe facilitates the recovery of lubricating oil from the multiple oil pipes.

[0010] As a further improvement and supplement to the present application, an oil tank port is provided at the top of the oil tank, a filter basket is inserted into the inside of the oil tank port, a slot is provided at the top of the filter basket, the reflux main pipe is inserted into the slot, and the filter basket is used to filter the refluxed lubricating oil and the newly added lubricating oil, thereby effectively preventing precipitates from entering the lubricating oil pipeline.

[0011] As a further improvement and supplement to the present application, the slot is arranged in a long strip shape, and a push rod is slidably connected to the inner side of the slot. The push rod is in contact with the reflux main pipe, and the reflux main pipe is made of a rubber hose. The push rod pushes the reflux main pipe laterally to bend away from the slot, so as to facilitate the extraction and replacement of the filter basket.

[0012] As another improvement of the present application, the lubrication system also includes an oil quantity detection module and a flow detection module. The oil quantity detection module and the flow detection module are both installed on the outside of the reflux main pipe. The output ends of the oil quantity detection module and the flow detection module are both connected to the oil recovery module and the alarm module. The lubrication system is detected by the oil quantity detection module and the flow detection module to detect the amount of lubricating oil and the flow of lubricating oil in the pipeline to determine whether the lubrication system is leaking, so that the oil recovery module and the alarm module are used to perform oil recovery and alarm processing.

[0013] As another improved supplement of the present application, the oil level detection module includes an oil level sensor, which is fixedly arranged at the bottom of the reflux main pipe, and the bottom end of the oil level sensor extends to the bottom of the oil tank. The oil level sensor detects the amount of lubricating oil in the oil tank, and determines whether the consumption of the lubricating oil is abnormal based on the consumption rate of the lubricating oil, thereby determining whether there is a leak in the system.

[0014] As another improved supplement of the present application, the flow detection module includes a flow sensor, which is fixedly installed at the connecting end of the return main pipe and the oil pipe. The flow sensor detects the flow rate of the lubricating oil in the oil pipe and determines whether the system is leaking based on the flow rate of the lubricating oil.

[0015] As another improvement of the present application, the control end of the oil recovery module is connected to a reflux pump, a three-way valve is fixedly connected to the middle of the reflux main pipe, the input end of the reflux pump is connected to the vertical hole of the three-way valve, the three-way valve closes the automatic reflux of the reflux main pipe, and the reflux pump is used to extract the lubricating oil in the pipeline, thereby effectively avoiding continuous leakage of the lubricating oil in the pipeline.

[0016] As another improvement supplement of the present application, the outlet end of the reflux pump is fixedly connected with a reflux sub-pipe, the reflux sub-pipe is fixedly connected in parallel with the reflux main pipe, the lubricating oil extracted by the reflux pump is recovered into the oil tank through the reflux sub-pipe, and the reflux sub-pipe and the reflux main pipe are bent and deformed synchronously.

[0017] To sum up, the present invention lays a circulating oil circuit system to realize that the oil pump drives the lubricating oil to circulate, effectively improves the flow speed of the lubricating oil in the pipeline, effectively prevents the precipitates in the lubricating oil from staying in the pipeline, and further effectively prevents the pipeline from being blocked. When the oil outlet module is performing the oiling operation, the pressure plug in the oil nozzle rises, and the released oil suction rod absorbs the flowing lubricating oil, and then the pressure plug descends to squeeze the oil suction rod again, and the absorbed lubricating oil is squeezed out and dripped onto the position to be lubricated, which is convenient for the lubrication system to automatically oil the sewing machine, and effectively improves the use effect of the sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0019] Figure 2 This is a three-dimensional structural diagram of the circulating oil circuit system of the first embodiment of the present application;

[0020] Figure 3 This is a three-dimensional structural diagram of the oil outlet module of the first embodiment of the present application;

[0021] Figure 4 This is a demonstration diagram of the changes in oiling by the oil suction rod in the first embodiment of the present application;

[0022] Figure 5 This is a sectional stereoscopic view of the filter basket according to the first embodiment of the present application;

[0023] Figure 6 This is a demonstration diagram of the bending change of the return main pipe by the push rod in the first embodiment of the present application;

[0024] Figure 7 This is a side perspective view of a slot according to a first embodiment of the present application;

[0025] Figure 8 This is a top-down perspective structural diagram of a return main pipe according to a second embodiment of the present application;

[0026] Fig. 9 This is a side cross-sectional view of a fuel tank according to a second embodiment of the present application;

[0027] Fig.10 This is a system diagram of an oil level detection module and a flow detection module in the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1. Upper shaft; 2. Lower shaft; 3. Oil outlet module; 301. Cylinder; 302. Oil nozzle; 303. Oil suction rod; 304. Pressure plug; 305. Lower plug; 306. Upper plug; 4. Oil pump; 5. Oil tank; 501. Oil tank port; 502. Filter basket; 503. Slot; 504. Push rod; 6. Oil pipe; 601. Oil distributor; 7. Return main pipe; 701. Oil level sensor; 702. Flow sensor; 703. Return pump; 704. Three-way valve; 705. Return auxiliary pipe. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-2It is shown that an intelligent lubrication system for a sewing machine includes an upper shaft 1 and a lower shaft 2 of the sewing machine, the lubrication system includes a circulating oil circuit system laid on the outside of the upper shaft 1 and the lower shaft 2, the circulating oil circuit system is fixedly connected with an oil outlet module 3 corresponding to the positions to be lubricated of the upper shaft 1 and the lower shaft 2, the input end of the circulating oil circuit system is fixedly connected with an oil pump 4, the oil pump 4 is transmission-connected to the lower shaft 2, the input end of the oil pump 4 is fixedly connected with an oil tank 5, the output end of the circulating oil circuit system is connected with the oil tank 5, the circulating oil circuit system is composed of a plurality of oil pipes 6, one end of the oil pipe 6 connected to the oil pump 4 is uniformly fixedly connected with an oil circuit distributor 601, one end of the oil pipe 6 connected to the oil tank 5 is uniformly fixedly connected with a return main pipe 7, a plurality of oil pipes 6 are arranged in series according to the positions to be lubricated of the sewing machine, so as to realize the laying and installation of the circulating oil circuit system, the oil circuit distributor 601 facilitates the oil pump 4 to supply oil to the plurality of oil pipes 6, and the return main pipe 7 facilitates the recovery of lubricating oil from the plurality of oil pipes 6;

[0033] A circulating oil circuit system is laid using multiple oil pipes 6 according to the positions of the sewing machine to be lubricated. An oil outlet module 3 for dripping lubricating oil is installed on the oil circuit system. The oil pump 4 drives the lubricating oil through the oil circuit distributor 601 into the oil pipe 6 for circulation. The lubricating oil flows rapidly in the oil pipe 6, effectively preventing precipitates in the lubricating oil from staying in the pipeline, thereby effectively preventing pipeline blockage.

[0034] Figure 2-4 As shown, the oil outlet module 3 is composed of a cylinder 301 and an oil nozzle 302 fixed on the outside thereof, the cylinder 301 is connected to the circulating oil circuit system, an oil suction rod 303 is sleeved inside the oil nozzle 302, the bottom end of the oil suction rod 303 is fixedly connected to the outlet end of the oil nozzle 302, and a pressure plug 304 is movably connected to the top of the oil nozzle 302, and the pressure plug 304 is fixedly connected to the top of the oil suction rod 303, and the pressure plug 304 includes a lower plug column 305 and an upper plug column 306, and the lower plug column 305 and the upper plug column 306 are threadedly connected at the beginning and end, and the diameter of the lower plug column 305 corresponds to the inner diameter of the oil nozzle 302, and the oil suction rod 303 is made of sponge material, and the threaded lower plug column 305 and the upper plug column 306 can realize the length adjustment of the pressure plug 304, thereby adjusting the contact surface between the oil suction rod 303 and the lubricating oil, thereby adjusting the amount of lubricating oil absorbed;

[0035] When the oil outlet module 3 is performing the oiling operation, the lubricating oil flows rapidly in the oil pipe 6, the pressure plug 304 in the oil nozzle 302 rises first, loosens the squeezed oil suction rod 303, and the flowing lubricating oil is partially sucked by the oil suction rod 303, then the pressure plug 304 descends to squeeze the oil suction rod 303 again, the sucked lubricating oil is squeezed out, and drips from the bottom end of the oil nozzle 302 to the position to be lubricated, thereby realizing automatic oiling of the sewing machine by the lubrication system, and the length of the pressure plug 304 can be adjusted by rotating the lower plug column 305 and the upper plug column 306, so as to adjust the exposed area of ​​the oil suction rod 303, and by adjusting the amount of lubricating oil sucked, the oiling amount of the sewing machine can be adjusted, thereby effectively improving the use effect of the sewing machine.

[0036] Figure 5-7 As shown, a fuel tank port 501 is provided at the top of the fuel tank 5, a filter basket 502 is plugged into the interior of the fuel tank port 501, a slot 503 is provided at the top of the filter basket 502, the return main pipe 7 is plugged into the slot 503, the filter basket 502 is used to filter the refluxed lubricating oil and the newly added lubricating oil, and the precipitate is effectively prevented from entering the lubricating oil pipeline, the slot 503 is arranged in a long strip shape, the inner side of the slot 503 is slidably connected with a push rod 504, the push rod 504 is in contact with the return main pipe 7, the return main pipe 7 is made of a rubber hose, and the push rod 504 pushes the return main pipe 7 laterally to bend away from the slot 503, so as to facilitate the extraction and replacement of the filter basket 502;

[0037] When the lubricating oil circulating in the oil pipe 6 returns to the oil tank 5 through the reflux main pipe 7, the refluxed lubricating oil is filtered through the filter basket 502 to filter out precipitates and other impurities in the lubricating oil. The newly added lubricating oil from the oil tank port 501 is also filtered by the filter basket 502, effectively preventing precipitates from entering the lubricating oil pipeline. When taking out and replacing the filter basket 502, the push rod 504 is operated to move horizontally to push the reflux main pipe 7 to bend away from the slot 503, thereby facilitating the extraction and replacement of the filter basket 502.

[0038] The second implementation method:

[0039] Figure 8-10 As shown, the lubrication system also includes an oil quantity detection module and a flow detection module. The oil quantity detection module and the flow detection module are both installed outside the return main pipe 7. The output ends of the oil quantity detection module and the flow detection module are connected to the oil recovery module and the alarm module. The oil quantity detection module and the flow detection module are used to detect the amount of lubricating oil and the flow of lubricating oil in the pipeline to determine whether the lubricating system is leaking, so that the oil recovery module and the alarm module are used to recover the oil and alarm. The oil quantity detection module includes an oil quantity sensor 701, and the oil quantity sensor 701 The oil level sensor 701 is fixedly arranged at the bottom of the return main pipe 7, and the bottom end of the oil level sensor 701 extends to the bottom of the oil tank 5. The oil level sensor 701 detects the amount of lubricating oil in the oil tank 5, and judges whether the consumption of lubricating oil is abnormal according to the consumption rate of lubricating oil, so as to judge whether the system has leakage. The flow detection module includes a flow sensor 702, and the flow sensor 702 is fixedly installed at the connection end of the return main pipe 7 and the oil pipe 6. The flow sensor 702 detects the flow rate of lubricating oil in the oil pipe 6, and judges whether the system has leakage according to the flow rate of lubricating oil.

[0040] When the lubricating oil system is working, the oil quantity detection module detects the amount of lubricating oil in the oil tank 5 through the oil quantity sensor 701, and determines whether the consumption of the lubricating oil is abnormal based on the consumption rate of the lubricating oil. The flow detection module detects the flow rate of the lubricating oil in the oil pipe 6 through the flow sensor 702 to determine whether the flow rate of the lubricating oil is abnormal. The two detection sensings are combined to determine whether the system has leakage, and the oil recovery module and the alarm module are used to recover the oil and perform alarm processing.

[0041] Figure 5 and 8 It is shown that the control end of the oil recovery module is connected to a reflux pump 703, a three-way valve 704 is fixedly connected to the middle of the reflux main pipe 7, the input end of the reflux pump 703 is connected to the vertical hole of the three-way valve 704, the three-way valve 704 closes the automatic reflux of the reflux main pipe 7, the reflux pump 703 is used to extract the lubricating oil in the pipeline, and the continuous leakage of the lubricating oil in the pipeline is effectively avoided, the outlet end of the reflux pump 703 is fixedly connected to a reflux auxiliary pipe 705, the reflux auxiliary pipe 705 is fixedly connected to the reflux main pipe 7 in parallel, the lubricating oil extracted by the reflux pump 703 is recovered into the oil tank 5 through the reflux auxiliary pipe 705, and the reflux auxiliary pipe 705 and the reflux main pipe 7 are synchronously bent and deformed;

[0042] When leakage is detected in the lubricating oil system, the circulation of the lubricating oil is stopped first, the three-way valve 704 closes the circulation of the reflux main pipe 7, and the reflux pump 703 is opened instead. The reflux pump 703 extracts the lubricating oil remaining in the pipeline, effectively avoiding continuous leakage of the lubricating oil in the pipeline. The extracted lubricating oil returns to the oil tank 5 using the reflux sub-pipe 705, which is convenient for the recycling of the lubricating oil.

[0043] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An intelligent lubrication system for a sewing machine, comprising an upper shaft (1) and a lower shaft (2) of the sewing machine, characterized in that: The lubrication system comprises a circulating oil circuit system laid on the outside of the upper shaft (1) and the lower shaft (2), wherein the circulating oil circuit system is fixedly connected to oil outlet modules (3) at positions to be lubricated corresponding to the upper shaft (1) and the lower shaft (2), an input end of the circulating oil circuit system is fixedly connected to an oil pump (4), the oil pump (4) is drivingly connected to the lower shaft (2), the input end of the oil pump (4) is fixedly connected to an oil tank (5), and the output end of the circulating oil circuit system is connected to the oil tank (5); The oil outlet module (3) is composed of a cylinder (301) and an oil nozzle (302) fixed on the outside thereof; the cylinder (301) is connected to a circulating oil circuit system; an oil suction rod (303) is sleeved inside the oil nozzle (302); the bottom end of the oil suction rod (303) is fixedly connected to the outlet end of the oil nozzle (302); the top of the oil nozzle (302) is movably connected to a pressure plug (304); the pressure plug (304) is fixedly connected to the top end of the oil suction rod (303); The circulating oil circuit system is composed of a plurality of oil pipes (6), one end of the oil pipe (6) connected to the oil pump (4) is uniformly and fixedly connected to an oil circuit distributor (601), and one end of the oil pipe (6) connected to the oil tank (5) is uniformly and fixedly connected to a return main pipe (7). The lubrication system also includes an oil quantity detection module and a flow detection module, and the oil quantity detection module and the flow detection module are both installed outside the return main pipe (7). The output ends of the oil quantity detection module and the flow detection module are both connected to an oil recovery module and an alarm module. The oil quantity detection module includes an oil quantity sensor (70 1), the oil quantity sensor (701) is fixedly arranged at the bottom of the reflux main pipe (7), and the bottom end of the oil quantity sensor (701) extends to the bottom of the oil tank (5), the control end of the oil recovery module is connected to a reflux pump (703), the middle part of the reflux main pipe (7) is fixedly connected to a three-way valve (704), the input end of the reflux pump (703) is connected to the vertical hole of the three-way valve (704), the outlet end of the reflux pump (703) is fixedly connected to a reflux auxiliary pipe (705), and the reflux auxiliary pipe (705) is fixedly connected to the reflux main pipe (7) in parallel.

2. The intelligent lubrication system for a sewing machine according to claim 1, characterized in that: The pressure plug (304) comprises a lower plug post (305) and an upper plug post (306), and the lower plug post (305) and the upper plug post (306) are threadedly connected end to end, the diameter of the lower plug post (305) corresponds to the inner diameter of the oil nozzle (302), and the oil suction rod (303) is made of sponge material.

3. The intelligent lubrication system for a sewing machine according to claim 1, characterized in that: The top of the oil tank (5) is provided with an oil tank opening (501), a filter basket (502) is inserted into the interior of the oil tank opening (501), a slot (503) is provided on the top of the filter basket (502), and the return main pipe (7) is inserted into the slot (503).

4. The intelligent lubrication system for a sewing machine according to claim 3, characterized in that: The slot (503) is arranged in a long strip shape, and a push rod (504) is slidably connected to the inner side of the slot (503), and the push rod (504) is in contact with a return main pipe (7), and the return main pipe (7) is made of a rubber hose.

5. The intelligent lubrication system for a sewing machine according to claim 1, characterized in that: The flow detection module comprises a flow sensor (702), and the flow sensor (702) is fixedly mounted on the connection end between the return main pipe (7) and the oil pipe (6).

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