Sewing machine time-to-time joint control forced lubrication device

Abstract

The utility model relates to the technical field of modification of sewing machine equipment, in particular to a secondary-time joint control forced lubrication device of a sewing machine. An oil inlet of a flow pump of the sewing machine time joint control forced lubrication device is connected with an oil tank through a first pipeline. An oil outlet of the flow pump is connected with a lubricating pipeline of the sewing machine rotating shuttle through a second pipeline. The flow pump is provided with a control end. The control module is provided with a first input end, a second input end used for collecting the number of pedal movement times of the sewing machine, an output end used for being connected with the control end and a storage unit. The first input end is connected with a time relay. The storage unit is used for storing the preset pedal movement times and array data of the output flow of the flow pump corresponding to the preset working duration. According to the secondary-time joint-control forced lubricating device for the sewing machine, the modification difficulty of a lubricating pipeline of the sewing machine is reduced, the lubricating mode of manual oiling is replaced, the lubricating effect on the rotating shuttle is improved, the service life is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine equipment transformation, and particularly relates to a secondary time control forced lubrication device for a sewing machine. Background Technique

[0002] The rotary hook of a sewing machine is mainly used below the needle to interweave the upper thread and the lower thread to form a lockstitch. During sewing, the needle passes through the fabric and drives the upper thread, and the rotary hook catches the upper thread and winds it around the lower thread to form a complete loop. The rotary hook is used to control the tension of the sewing thread to ensure that each stitch is uniform and tight, thereby ensuring the quality and effect of sewing.

[0003] In order to ensure the stable operation of the rotary hook, sewing machine manufacturers will formulate corresponding lubrication standards for the rotary hook in the user manual and regularly lubricate the lubrication points of the rotary hook with light lubricating oil. However, when sewing with a rotary hook just filled with light lubricating oil, the rotational movement of the rotary hook will cause the lubricating oil to splash and contaminate the fabric. In order to avoid oil stains contaminating the fabric, sewing machine manufacturers can reduce the lubrication standard of the rotary hook.

[0004] In this way, under the high-intensity working conditions of the sewing machine, the rotary hook will be severely worn, affecting its service life. Under high-intensity working conditions, the rotary hook needs to be replaced every six months during use, greatly increasing the maintenance cost. For example, a sewing machine kit of Juki costs 6,000 yuan per set. Especially in a clothing workshop, when using numerically controlled special sewing machines in the sewing of pockets, zippers, etc., the working intensity is higher, and the wear of the rotary hook / bobbin case is more serious. Once a failure occurs and the machine stops or parts are replaced, it will cause waiting in other sewing links, resulting in a production capacity bottleneck.

[0005] In order to better lubricate the rotary hook of a sewing machine, some sewing machine manufacturers have proposed a new type of sewing machine for the above-mentioned lubrication problems. For example, a fuel supply lubrication structure for a sewing machine rotary hook and a sewing machine are disclosed in Chinese Patent Document CN218989602U. Among them, the circumferential side wall of the bushing of the fuel supply lubrication structure is provided with an oil inlet hole, an oil return hole and a plunger hole all communicating with the shaft hole. The machine base is provided with a threaded hole, and the circumferential side wall of the rotary hook shaft is provided with an eccentric groove. A spring and a plunger are installed in the plunger hole, and plunger-type oil supply is adopted, taking into account both oil wick oil absorption and gear pump oil supply, with the characteristics of simple mechanical structure and continuous and stable oil volume.

[0006] However, the above oil supply and lubrication structure is only applicable to the sewing machine manufacturers for the improvement design of newly produced sewing machine models to enhance the lubrication effect on the rotating shuttle. For the old - model sewing machines currently used by garment manufacturers, it is difficult to implement lubrication transformation. For the lubrication of the rotating shuttle of the old - model sewing machines currently used in the garment production workshop, the manual oiling method is still adopted. After the sewing machine stops, the operator needs to disassemble the needle plate and manually oil the lubrication points of the rotating shuttle below it. The whole lubrication operation is rather cumbersome, and the frequent shutdown lubrication operation greatly affects the sewing efficiency. In addition, on the one hand, it is difficult for the operator to accurately control the timing of lubrication manually; on the other hand, there are also deviations in the operator's control of the oil volume, which in turn affects the lubrication effect on the rotating shuttle. Summary of the Invention

[0007] The purpose of the present utility model is to provide a lubrication structure during the upgrading and transformation of sewing machines, so as to reduce the difficulty of modifying the lubrication pipeline of the sewing machine, replace the manual oiling lubrication method, improve the lubrication effect on the rotating shuttle, extend the service life, and reduce the use cost.

[0008] To achieve the above - mentioned purpose, the present utility model adopts the following scheme:

[0009] A sewing machine's time - controlled forced lubrication device includes a flow pump, a control module, and an oil tank for storing lubricating oil, which are arranged on the sewing machine frame;

[0010] The inlet of the flow pump is connected to the oil tank through the first pipeline, the outlet of the flow pump is connected to the lubrication pipeline of the sewing machine's rotating shuttle through the second pipeline, and the flow pump is provided with a control end for driving the pump body to work;

[0011] The control module is provided with a first input end, a second input end for collecting the number of pedal movements of the sewing machine, an output end for connecting the control end of the flow pump, and a storage unit. The first input end is connected to a time relay for measuring the working duration of the sewing machine. The storage unit is used to store the preset number of pedal movements and the array data of the output flow of the flow pump corresponding to the preset working duration;

[0012] When the actual number of pedal movements obtained by the second input end is equal to the preset number of pedal movements, the control module obtains the actual working duration recorded by the time relay, and obtains the actual output flow according to the actual working duration and the array data. The control module drives the flow pump to start and controls the flow pump to output the lubricating oil with the actual output flow to the lubrication pipeline through the second pipeline.

[0013] Preferably, the storage unit is connected with an operation panel for adjusting the array data of the preset number of pedal movements and the output flow of the flow pump corresponding to the preset working duration. Adjusting buttons are arranged on the operation panel. With such a setting, it is convenient for the operator to adjust the lubrication scheme for the sewing machine rotating shuttle in a timely manner according to the actual needs of the processing task, further improving the flexibility of lubricating the sewing machine rotating shuttle.

[0014] Preferably, the flow pump is a precision injection pump or a micro peristaltic pump. With such a setting, it is beneficial to further improve the accuracy of the output flow, enhance the lubrication effect on the rotating shuttle, avoid excessive lubricating oil entering the lubrication points of the rotating shuttle, and thus prevent the lubricating oil from being splashed onto the fabric.

[0015] Preferably, the accuracy of the output flow of the flow pump is 0.05 ml.

[0016] Preferably, the preset number of pedal movements is 200 - 300 times.

[0017] Preferably, the capacity of the fuel tank is 300 ml - 450 ml.

[0018] Preferably, a filter is arranged on the first pipeline. With such a setting, the filter is used to prevent impurities in the lubricating oil from entering the lubrication pipeline, thus ensuring the stability of the lubricating pipeline for transporting lubricating oil.

[0019] Compared with the prior art, a forced lubrication device for a sewing machine with time - based and joint control provided by the present utility model has the following substantial features and improvements:

[0020] 1. The forced lubrication device for a sewing machine with time - based and joint control collects the number of pedal movements and the working duration of the sewing machine in real time through a control module, accurately calculates the required amount of lubricating oil according to the preset array data, and then drives the flow pump to transport lubricating oil to the lubrication pipeline of the sewing machine, realizing intelligent lubrication control, reducing the difficulty of modifying the lubrication pipeline of the sewing machine. Installing it on the existing lubrication pipeline of the sewing machine does not affect the original warranty of the sewing machine.

[0021] 2. The forced lubrication device for a sewing machine with time - based and joint control effectively reduces the wear of the rotating shuttle and other key components caused by improper lubrication by accurately controlling the output of lubricating oil, thereby extending the service life of the sewing machine, reducing the maintenance and replacement frequency of the equipment. The automated lubrication system reduces the time and operation of manual intervention. The sewing machine operator can focus on sewing work, improving the overall production efficiency. By accurately controlling the output flow of lubricating oil, it avoids the splashing of lubricating oil onto the processed fabric caused by excessive lubrication, and also prevents the situation of insufficient lubrication, improving the stability and consistency of the lubrication effect.

[0022] 3. The storage unit of the time-sharing linked control forced lubrication device of the sewing machine can store multiple groups of preset data. Users can flexibly adjust the lubrication parameters according to different sewing requirements and machine working conditions, adapt to various working environments and requirements, and provide a more convenient and flexible lubrication solution for users. Brief Description of the Drawings

[0023] Figure 1 is a schematic assembly structure diagram of a time-sharing linked control forced lubrication device of a sewing machine in an embodiment of the present invention.

[0024] Figure 2 is Figure 1 a schematic structural diagram of a time-sharing linked control forced lubrication device of a sewing machine in another perspective in

[0025] Figure 3 is Figure 1 the front view of

[0026] Figure 4 is a schematic control flow diagram of a time-sharing linked control forced lubrication device of a sewing machine in an embodiment of the present invention.

[0027] Reference Numerals: 1. Flow pump; 2. Control module; 3. Oil tank; 4. Rotating hook; 5. Operation panel; 6. Adjustment button. Detailed Embodiment

[0028] The following will describe in detail the specific embodiments of the present invention with reference to the drawings.

[0029] As Figures 1-3 shown, a time-sharing linked control forced lubrication device of a sewing machine is proposed in an embodiment of the present invention, aiming to reduce the modification difficulty of the lubrication pipeline of the sewing machine, replace the lubrication method of manual oiling, improve the lubrication effect on the rotating hook, extend the service life, and reduce the use cost.

[0030] A time-sharing linked control forced lubrication device of a sewing machine proposed in an embodiment of the present invention collects the number of pedal movements and working hours of the sewing machine in real time through the control module 2, accurately calculates the required lubricating oil volume according to the preset array data, and then drives the flow pump 1 to deliver lubricating oil to the lubrication pipeline of the sewing machine, realizing intelligent lubrication control, reducing the modification difficulty of the lubrication pipeline of the sewing machine, replacing the lubrication method of manual oiling, improving the lubrication effect on the rotating hook 4, extending the service life of the rotating hook 4, and reducing the use cost.

[0031] As Figure 1 combined with Figure 2As shown in the figure, a secondary time - controlled forced lubrication device for a sewing machine includes a flow pump 1, a control module 2, and an oil tank 3 for storing lubricating oil, which are arranged on the sewing machine frame. The inlet of the flow pump 1 is connected to the oil tank 3 through a first pipeline. The outlet of the flow pump 1 is connected to the lubrication pipeline of the sewing machine rotating shuttle 4 through a second pipeline. The flow pump 1 is provided with a control end for driving the pump body to work. The first pipeline and the second pipeline are not shown in the figure. The first pipeline and the second pipeline can be arranged along the edge of the sewing machine according to actual needs. When arranging the pipelines, it is necessary to avoid interference with the moving parts of the sewing machine. For example, the capacity of the oil tank 3 is 300 ml - 450 ml.

[0032] As Figure 3 As shown in Figure 4, the control module 2 is provided with a first input end, a second input end for collecting the number of pedal movements of the sewing machine, an output end for connecting the control end of the flow pump 1, and a storage unit. The first input end is connected to a time relay for measuring the working duration of the sewing machine. The storage unit is used to store the preset number of pedal movements and the array data of the output flow rate of the flow pump 1 corresponding to the preset working duration.

[0033] When the actual number of pedal movements obtained by the second input end is equal to the preset number of pedal movements, the control module 2 obtains the actual working duration recorded by the time relay, and obtains the actual output flow rate according to the actual working duration and the array data. The control module 2 drives the flow pump 1 to start and controls the flow pump 1 to output lubricating oil with the actual output flow rate to the lubrication pipeline through the second pipeline.

[0034] Among them, the flow pump 1 can be selected as a precision injection pump or a micro peristaltic pump. With such a setting, it is beneficial to further improve the accuracy of the output flow rate, enhance the lubrication effect on the rotating shuttle 4, avoid excessive lubricating oil entering the lubrication points of the rotating shuttle 4, and thus prevent the lubricating oil from being splashed on the fabric. For example, the accuracy of the output flow rate of the flow pump 1 is 0.05 ml.

[0035] As Figure 1 Combined Figure 4 As shown in the figure, the storage unit is connected to an operation panel 5 for adjusting the preset number of pedal movements and the array data of the output flow rate of the flow pump 1 corresponding to the preset working duration. The operation panel 5 is provided with adjustment buttons 6. With such a setting, it is convenient for the operator to timely adjust the lubrication scheme for the sewing machine rotating shuttle 4 according to the actual needs of the processing task, and further improves the flexibility of lubricating the sewing machine rotating shuttle 4.

[0036] For example, during the process of processing work orders such as jeans in a clothing workshop, due to the characteristics of denim fabric, the rotating shuttle 4 has a large amount of wear during processing, so it is necessary to increase the amount of lubricating oil added. And considering that there is a subsequent water washing process for jeans products, the water washing process can remove the lubricating oil contaminated on the denim fabric. Therefore, in the above processing conditions, in order to reduce the wear of the rotating shuttle 4, an over-lubrication scheme can be adopted for the rotating shuttle 4, that is, on the basis of the standard lubrication amount, further increase the output flow of the flow pump 1.

[0037] Another example is that during the process of processing work orders such as knitting and silk in a clothing workshop, due to the characteristics of silk fabric, it is necessary to focus on the lubricating oil splashed from the rotating shuttle 4. In order to avoid the contamination of the silk fabric by the lubricating oil, a small-lubrication scheme can be adopted for the rotating shuttle 4, that is, on the basis of the standard lubrication amount, further reduce the output flow of the flow pump 1.

[0038] In some preferred embodiments of the present invention, a filter is provided on the first pipeline. With this setting, the filter is used to prevent impurities in the lubricating oil from entering the lubrication pipeline, thereby ensuring the stability of the lubrication pipeline for transporting lubricating oil.

[0039] When a sewing machine secondary-time linked forced lubrication device proposed in an embodiment of the present invention is in use, before the sewing machine starts working, the operator needs to preset the number of pedal movements, the corresponding working duration, and the output flow array data of the flow pump 1 in the storage unit of the control module 2 according to the model and usage frequency of the sewing machine. These data will be used as the reference parameters for the operation of the lubrication system.

[0040] For example, the preset number of pedal movements is 200 - 300 times. The output flow per 10 minutes of working duration is 0.5 ml.

[0041] The operator starts the sewing machine and begins sewing operations. During sewing, the first input end of the control module 2 starts to measure the working duration of the sewing machine through the connected time relay. The second input end of the control module 2 real-time collects the number of pedal movements of the sewing machine. Whenever the number of pedal movements reaches the preset value, the control module 2 will record this event.

[0042] When the actual number of pedal movements is equal to the preset number of pedal movements, the control module 2 will obtain the actual working duration recorded by the time relay, and calculate the actual lubricating oil amount that the flow pump 1 should output at the current working duration according to the array data in the storage unit. The control module 2 is connected to the control end of the flow pump 1 through the output end to drive the flow pump 1 to start. The flow pump 1 outputs the lubricating oil with the calculated actual output flow to the lubrication pipeline of the sewing machine rotating shuttle 4 according to the instruction of the control module 2.

[0043] The output lubricating oil reaches the rotary hook 4 through the lubricating pipeline, ensuring that the rotary hook 4 is fully lubricated during the sewing process, reducing wear and improving the sewing quality. During the continuation of the sewing operation, the control module 2 continuously monitors the number of pedal movements and the working duration, and automatically adjusts the output of the lubricating oil according to the actual situation to ensure that the sewing machine is always in the best lubricated state.

[0044] In the embodiment of the present utility model, a time-controlled forced lubrication device for a sewing machine effectively reduces the wear of the rotary hook 4 and other key components caused by improper lubrication by precisely controlling the output of the lubricating oil. Thereby, the service life of the sewing machine is prolonged, and the maintenance and replacement frequency of the equipment are reduced. The automated lubrication system reduces the time and operation of manual intervention. The sewing machine operator can focus on the sewing work, improving the overall production efficiency. By precisely controlling the output flow rate of the lubricating oil, the splashing of the lubricating oil onto the processed fabric caused by excessive lubrication is avoided, and at the same time, the situation of insufficient lubrication is prevented, improving the stability and consistency of the lubrication effect.

[0045] The present utility model is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present utility model can also have other implementation manners. For those skilled in the art, any technical solutions formed by making any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A time-controlled forced lubrication device for a sewing machine, characterized in that: It includes a flow pump, a control module and an oil tank for storing lubricating oil arranged on a sewing machine frame; The oil inlet of the flow pump is connected to the oil tank through a first pipeline, the oil outlet of the flow pump is connected to the lubrication pipeline of the rotary hook of the sewing machine through a second pipeline, and the flow pump is provided with a control end for driving the pump body to work; The control module is provided with a first input end, a second input end for collecting the number of pedal movements of the sewing machine, an output end for connecting to the control end of the flow pump, and a storage unit, wherein the first input end is connected to a time relay for measuring the working time of the sewing machine, and the storage unit is used to store the array data of the output flow of the flow pump corresponding to the preset number of pedal movements and the preset working time; When the actual number of pedaling movements obtained by the second input end is equal to the preset number of pedaling movements, the control module obtains the actual working time recorded by the time relay, and obtains the actual output flow based on the actual working time and the array data. The control module drives the flow pump to start and controls the flow pump to output the lubricating oil of the actual output flow to the lubrication pipeline through the second pipeline.

2. The sewing machine timing joint control forced lubrication device according to claim 1, characterized in that: The storage unit is connected to an operation panel for adjusting the preset pedaling movement times and the array data of the output flow of the flow pump corresponding to the preset working time, and the operation panel is provided with adjustment buttons.

3. The sewing machine timing joint control forced lubrication device according to claim 1, characterized in that: The flow pump is a precision injection pump or a micro peristaltic pump.

4. The sewing machine timing joint control forced lubrication device according to claim 1, characterized in that: The accuracy of the output flow of the flow pump is 0.05ml.

5. The sewing machine timing joint control forced lubrication device according to claim 1, characterized in that: The preset number of pedaling movements is 200-300 times.

6. The sewing machine timing joint control forced lubrication device according to claim 1, characterized in that: The capacity of the oil tank is 300ml-450ml.

7. The sewing machine timing joint control forced lubrication device according to claim 1, characterized in that: The first pipeline is provided with a filter.

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