CN105714488A - Oil quantity detection device for oil disc of sewing machine and sewing machine - Google Patents
Oil quantity detection device for oil disc of sewing machine and sewing machine Download PDFInfo
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- CN105714488A CN105714488A CN201610248486.XA CN201610248486A CN105714488A CN 105714488 A CN105714488 A CN 105714488A CN 201610248486 A CN201610248486 A CN 201610248486A CN 105714488 A CN105714488 A CN 105714488A
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- oil
- sewing machine
- food tray
- oil mass
- detecting device
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2205/00—Interface between the operator and the machine
- D05D2205/12—Machine to the operator; Alarms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides an oil quantity detection device for an oil disc of a sewing machine. The oil quantity detection device comprises the oil disc provided with an oil cavity, and further comprises a support which is fixedly arranged in the oil cavity, a floater which is located in the oil cavity and can float up and down along the height change of an oil level in the oil cavity, and an element to be induced, which is fixedly arranged on the floater, wherein the support is internally provided with a sealing cavity; and the sealing cavity is internally and fixedly provided with sensors for inducing the element to be induced. According to the oil quantity detection device, the sensors are arranged at the positions with different heights in the oil cavity of the oil disc, so that when the floater drives the element to be induced to float up and down along the height change of the oil level of lubricating oil in the oil cavity, the sensors can induce the element to be induced, and furthermore, high-level oil quantity information or low-level oil quantity information in the oil disc is detected; and a maximum value and a minimum value of the oil quantity in the oil disc can be measured at the same time, so that a phenomenon that the oil quantity in the oil disc is excessive or too less is prevented, the normal work of the sewing machine can be guaranteed, and oil is prevented from leaking when the sewing machine turns on one side.
Description
Technical field
The present invention relates to a kind of industrial sewing machine, particularly relate to a kind of sewing machine food tray oil mass detecting device and sewing machine.
Background technology
Industrial sewing machine mainly includes flat seam machine, overedger, flat seaming machine, chain seam machine etc., and sewing machine relies primarily on mechanical transmission component and carries out transmission, accordingly, it would be desirable to mechanical transmission component is lubricated, to prevent the wear and aging of sewing machine tool drive disk assembly.At present, the lubricating structure of sewing machine is mainly by food tray, oil pump and be located at the oil pipe line in mechanical transmission component or oil line is constituted, in the bottom driving parts bubble of sewing machine lubricating oil in food tray, meanwhile, oil pump aspirates the lubricating oil of food tray and by oil pipe line or oil line or lubricating oil is directly sprayed onto all the other mechanical transmission component places.Additionally, development along with sewing machine technique, sewing machine is substantially all employing envelope oil disc structure, therefore for the leaking outside of lubricating oil in food tray when ensureing the normal operation of oil pump and avoid sewing machine to translate into, need to be maintained in certain scope by the fuel-flow control of lubricating oil in food tray, the oil mass of lubricating oil should not too much, also unsuitable very few.Therefore, the most high liquid level (HLL) of lubricating oil in food tray and the oil mass information of minimum level can be obtained rapidly, efficiently and accurately, and can according to lubricating oil oil mass number make corresponding judgement and process and become the technical need that a kind of sewing machine is inevitable, based on this, sewing machine food tray oil mass detection technique has become each big sewing machine brand and has fallen over each other the technology emphasis of research and development.
At present, in sewing machine industry, the commonly used processing mode of food tray oil mass detection is: arrange liquid level sensor in food tray, to obtain the oil mass information of lubricating oil minimum level in food tray, and make corresponding judgement process, but, this oil mass detection mode have ignored the acquisition of the oil mass information of the most high liquid level (HLL) of lubricating oil in food tray, refuels too much situation occur thus causing, it is easy to cause that lubricating oil leaks outside when sewing machine is translated into.
For the problems referred to above, application number be 201210517577.0 application for a patent for invention description disclose a kind of industrial sewing machine oil mass detection and alarm mechanism, the variable quantity of oil mass is passed to Magnet by connecting rod by being located at rotating shuttle for cursory in oil box by it, then by the voltage signal of hall sensing to Magnet detect oil mass number and carry out the warning of just oil mass.But, owing to when sewing machine works, oil pump can stir lubricating oil, thus causing the fluctuation of oil box inner fluid very big, therefore cursory rock very severe, therefore, the stability of the oil mass testing agency of above-mentioned industrial sewing machine is excessively poor, and its certainty of measurement does not reach real work requirement especially.Additionally, sewing machine food tray Height of oil excursion is only small, and by causing the scope that Magnet changes less after the leverage of connecting rod, so little scope is not reached by linear Hall detecting distance change precision at all, adding rocking of fluid very big, error is just bigger；Simultaneously, linear Hall is more sensitive to linearly close distance change, and the oil mass detection of above-mentioned industrial sewing machine with in alarm mechanism, Magnet moves closer to linear hall sensor with the track of circular arc, this mode converts out the vertical height error that causes of change of float more greatly again through computing, because the distance variation relation between the change of float vertical height and Magnet and linear Hall is not linear relationship.To sum up, the oil mass detection mode possible in theory that the oil mass detection of above-mentioned industrial sewing machine proposes with alarm mechanism, but do not reach the requirement of measurement actually at all.
Or, application number is 201510460158.1 disclose a kind of oil mass detecting device, and it includes the guide cylinder being located in oil box, the vernier being enclosed within guide cylinder, be installed in the Magnet bottom vernier and be located at outside oil box and can the detector of induced magnet magnetic field power change；Therefore, when the oil mass in oil box is less, the distance between Magnet and detector also gradually decreases, when the height reduction of vernier is to certain position, detector detects that the magnetic field specified is strong and weak, and detector is connected circuit and sends alarm, reminds low on fuel in user's oil box.So, above-mentioned oil mass detecting device is capable of detecting when in oil box low level oil mass information and sends alarm, but, it have ignored the detection of high-order oil mass information in oil box, thus the phenomenon causing oiling too much occurs, and then when sewing machine is turned on one's side, fluid leaks outside, and causes a series of unnecessary trouble.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide the sewing machine food tray oil mass detecting device that a kind of accuracy of detection is high.
For achieving the above object, the present invention provides a kind of sewing machine food tray oil mass detecting device, including the food tray being provided with oil pocket, the pillar that also includes being installed in oil pocket, be arranged in oil pocket and the float fluctuated with fluid height of liquid level change in oil pocket and be installed on float by sensing unit, it is provided with annular seal space in described pillar, this annular seal space is installed with for sensing described by the sensor of sensing unit.
Preferably, to include high position sensor and low sensors, high position sensor and low sensors spaced apart up and down in described annular seal space for described sensor.
Preferably, described sensor is a linear hall sensor.
Further, also including being installed in oil pocket and being provided with the case of inner chamber, the lower end of described case or side offer oil through, and the oil pocket of food tray is connected by oil through with the inner chamber of case, described pillar is fixing with case or food tray to be connected, and described float is housed in the inner chamber of case.
Further, the partial struts being provided with described sensor is also housed in the inner chamber of case, and described float is enclosed within pillar.
Preferably, the upper end of described case or side offer passage.
Preferably, the side of described case is connected by least one fixing connecting rod and food tray are fixing.
Further, shroud body that described case includes being provided with described inner chamber and from the outward extending connecting portion in the lower end of shroud body, the lower surface of described connecting portion and food tray is welded and fixed or is fixed by securing member.
Further, being installed with the upper back-up ring being oppositely arranged up and down and lower back-up ring, described upper back-up ring and lower back-up ring and be respectively positioned in the inner chamber of case in the inner chamber of described case, described float is between upper back-up ring and lower back-up ring.
Further, described is a magnetic elements in the form of a ring by sensing unit, and described sensor is Magnetic Induction detector.
Preferably, described Magnetic Induction detector is Hall element or tongue tube or magnetic reed tube.
Further, also including signal processor, controller and alarm device, described sensor is connected with signal processor, and described signal processor is all connected with controller with alarm device.
Preferably, also including the control panel being arranged on sewing machine case and being connected with controller, described control panel is provided with multiple operation button.
Preferably, described alarm device includes the warning lamp, language alarm and the flashing icon that are arranged on sewing machine case.
The present invention also provides for a kind of sewing machine, is provided with sewing machine food tray oil mass detecting device as above in this sewing machine.
As it has been described above, the sewing machine food tray oil mass detecting device that the present invention relates to and sewing machine, have the advantages that
In the application, in the oil pocket of food tray, different high and low position places arrange sensor, therefore when float drive by sensing unit with oil pocket in the change of lubricating oil height of liquid level and when fluctuating, sensor can sense by sensing unit, and then the high-order oil mass information in food tray or low level oil mass information detected, therefore the application can measure maximum and the minima of oil mass in food tray simultaneously, and then prevent that oil mass in food tray is too much or the very few phenomenon of oil mass, both can guarantee that the normal operation of sewing machine, be avoided that again leaking outside of fluid when sewing machine is turned on one's side.Synchronously fluctuated with the change of fluid height of liquid level by sensing unit it addition, float drives, therefore float is consistent with by the movement locus of sensing unit, thus improving the accuracy of detection of oil mass detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of sewing machine food tray oil mass detecting device in the application.
Fig. 2 to Fig. 4 is the theory diagram of sewing machine food tray oil mass detecting device difference embodiment in the application.
Fig. 5 and Fig. 6 is the structural representation of the different embodiments of sewing machine food tray oil mass detecting device in the application.
Element numbers explanation
1 food tray
101 oil pockets
2 pillars
3 floats
4 by sensing unit
5 high position sensor
6 low sensors
7 cases
71 inner chambers
72 oil throughs
73 shroud body
74 connecting portions
8 fixing connecting rods
Back-up ring on 9
10 times back-up rings
11 signal processors
12 controllers
13 alarm devices
14 control panels
15 warning lamps
16 language alarms
17 flashing icons
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily.
Notice, the structure of this specification institute accompanying drawings depicted, ratio, size etc., all only in order to coordinate the disclosed content of description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of the present invention, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, under not affecting effect that the present invention can be generated by and the purpose that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", " centre " and " one " etc. term, it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, changing under technology contents without essence, when being also considered as the enforceable category of the present invention.
The application provides a kind of sewing machine food tray oil mass detecting device and is provided with the sewing machine of this sewing machine food tray oil mass detecting device, for detecting most high liquid level (HLL) and the minimum level of lubricating oil in sewing machine food tray 1.As shown in Fig. 1 or Fig. 5 or Fig. 6, described sewing machine food tray oil mass detecting device includes the food tray 1 being provided with oil pocket 101, it is installed in the pillar 2 in oil pocket 101, it is arranged in oil pocket 101 and the float 3 fluctuated with fluid height of liquid level change in oil pocket 101, and be installed on float 3 by sensing unit 4, it is provided with annular seal space in described pillar 2, this annular seal space is installed with at least one for sensing the described sensor by sensing unit 4, described pillar 2 maintains static in oil pocket 101, the density of described float 3 is less than the density of lubricating oil in food tray 1, fluctuate to guarantee float 3 can float with the height of lubricating oil liquid level.Preferably, described sensor is one, now, a linear hall sensor selected by this sensor, or, described sensor has two, respectively high position sensor 5 and low sensors 6, high position sensor 5 and low sensors 6 are spaced apart up and down in described annular seal space.As shown in Fig. 1 or Fig. 5 or Fig. 6, described sensor (i.e. high position sensor 5 and low sensors 6) is connected with the controller 12 in sewing machine electric cabinet by signal processor 11, so that the oil mass information in food tray 1 being passed to controller 12 oil mass being calculated by controller 12 according to the detection signal of sensor (i.e. high position sensor 5 or low sensors 6), judging in food tray 1, in the present embodiment, controller 12 prestores the oil mass higher limit in food tray 1 and oil mass lower limit.
In above-mentioned sewing machine food tray oil mass detecting device, its different high and low position places in food tray 1 oil pocket 101 arrange high position sensor 5 and low sensors 6；Therefore, when adding lubricating oil in food tray 1, float 3 drives and is upwards floated by the sensing unit 4 rising with lubricating oil liquid level, is moved closer to the high position sensor 5 in pillar 2 by sensing unit 4；When by sensing unit 4 with a certain distance from high position sensor 5, high position sensor 5 can sense by sensing unit 4, therefore corresponding voltage signal can be transferred to signal processor 11 by high position sensor 5, signal processor 11 is transmitted further to controller 12 after this voltage signal is carried out a series of process, controller 12 calculates the high-order oil mass information in food tray 1 according to this voltage signal；When the high-order oil mass that high position sensor 5 detects reaches the oil mass higher limit preset, then stop adding lubricating oil in food tray 1.When the lubricating oil in food tray 1 is gradually reduced along with the operating of sewing machine, float 3 drives and is floated downwards by the sensing unit 4 reduction with lubricating oil liquid level, is moved closer to the low sensors 6 in pillar 2 by sensing unit 4；When by sensing unit 4 with a certain distance from low sensors 6, low sensors 6 can sense by sensing unit 4, therefore corresponding voltage signal can be transferred to signal processor 11 by low sensors 6, signal processor 11 is transmitted further to controller 12 after this voltage signal is carried out a series of process, controller 12 calculates the low level oil mass information in food tray 1 according to this voltage signal；When the low level oil mass that low sensors 6 detects reaches the oil mass lower limit preset, then start to add lubricating oil in food tray 1.As shown in the above: the application not only can detect the high-order oil mass information in food tray 1, but also the low level oil mass information that can detect in food tray 1, and maximum and the minima of oil mass in food tray 1 can be controlled simultaneously, the oil mass in food tray 1 is made to maintain in the scope that user sets all the time, and then prevent that oil mass in food tray 1 is too much or the very few phenomenon of oil mass, ensure the normal operation of sewing machine, be also avoided that when sewing machine is turned on one's side, fluid leaks outside.Synchronously changed with the height of fluid liquid level in oil pocket 101 by sensing unit 4 it addition, float 3 drives and fluctuate, therefore float 3 is consistent with by the movement locus of sensing unit 4, thus improving the accuracy of detection of oil mass detection.
Further, as in figure 2 it is shown, the application also optimizes the automatically controlled of sewing machine, it is additionally arranged the alarm device 13 being connected with controller 12, it is simple in sewing machine use procedure, carry out oil-free warning or the prompting of warning filled it up with by oil, design hommization more.Specifically, when controller 12 judges that the low level oil mass information that low sensors 6 detects is default oil mass lower limit, when being also the lower limit position signal that low sensors 6 detects fluid, then controller 12 drives alarm device 13 to carry out oil-free warning, offer and refuel toward food tray 1, until the lubricating oil oil mass in food tray 1 exceedes set lower limit, then lower limit position blackout, oil-free is reported to the police and is also cancelled therewith.When controller 12 judges that the high-order oil mass information that high position sensor 5 detects is default oil mass higher limit, when being also the upper extreme position signal that high position sensor 5 detects fluid, then controller 12 drives alarm device 13 to carry out oil and has filled it up with warning, stops refueling toward food tray 1.When the upper extreme position signal of oil mass and lower limit position signal all can't detect, then illustrating that the oil mass of food tray 1 is in prescribed limit, controller 12 is left intact.Preferably, as shown in Figure 3, also including the control panel 14 being arranged on sewing machine case and being connected with controller 12, described control panel 14 is provided with multiple operation button, and then can set or change the oil mass higher limit and oil mass lower limit that are stored in controller 12.Additionally, as shown in Figure 4, in the present embodiment, alarm device 13 can include the warning lamp 15, language alarm 16 and the flashing icon 17 that are arranged on sewing machine case, flashing icon 17 can have two, respectively oil-free reminds flashing icon and oil to fill it up with prompting flashing icon, and then is supplied to user one alerting pattern very intuitively, in order to user carries out refueling or stopping refueling operation in time.
Further, as shown in Fig. 1 or Fig. 5 or Fig. 6, also including the case 7 being installed in oil pocket 101 and being provided with inner chamber 71, the lower end of described case 7 or side offer oil through 72, and the oil pocket 101 of food tray 1 is connected by oil through 72 with the inner chamber 71 of case 7.Described pillar 2 is fixed be connected with case 7 or food tray 1, and the cross section of case 7 is generally in inverted U-shaped, and case 7 from top to bottom covers on the periphery of float 3, so that float 3 is housed in the inner chamber 71 of case 7.Lubricating oil in food tray 1 oil pocket 101 flows in the inner chamber 71 of case 7 by oil through 72, therefore the height state of lubricating oil liquid level is consistent with the height state of lubricating oil liquid level in case 7 inner chamber 71 in food tray 1 oil pocket 101, therefore, float 3 drives and can be fluctuated with the height of oil mass in food tray 1 exactly by sensing unit 4.Especially, after case 7 is covered on float 3 outside, can effectively prevent sewing machine in real work because of down oil spout or the oil dripping impact on float 3 during oil return after the lubricating oil in oil pump suction food tray 1, and can also alleviate and reduce the sewing machine liquid fluctuating that causes impact on float 3 because oil pump aspirates lubricating oil in real work, ensure the Stability and veracity that float 3 fluctuates with the height of oil mass in food tray 1, and then improve oil mass accuracy of detection.
Further, three preferred embodiments of sewing machine food tray oil mass detecting device provided herein.
Embodiment one, as shown in Figure 1, case 7 only includes in inverted U-shaped shroud body 73, shroud body 73 be internally formed described inner chamber 71, the opening of shroud body 73 lower end forms described oil through 72, and the lower end of shroud body 73 do not contact with the lower surface of food tray 1, the space that formed between the two allows fluid to flow in inner chamber 71 from oil through 72.The side of described shroud body 73 is connected by least one fixing connecting rod 8 is fixing with food tray 1, and fixing connecting rod 8 can be fixed by screw with food tray 1 with case 7, fixing connecting rod 8, it is possible to adopts and is welded and fixed.The partial struts 2 being provided with described high position sensor 5 and low sensors 6 is also housed in the inner chamber 71 of case 7, float 3 is enclosed within pillar 2 and slides up and down along pillar 2, therefore fluctuating of float 3 is played guide effect by pillar 2, and then the stability that float 3 fluctuates can be effectively improved, thus improve the accuracy of detection of oil mass detection.Simultaneously, the upper end of described pillar 2 is fixed in the upper surface being located in case 7, for connecting the high position sensor 5 holding wire with signal processor 11 and low sensors 6 and signal processor 11 from the upper end upwards outlet of pillar 2, consequently facilitating grease proofing encapsulation process is done in outlet.
Embodiment two, as shown in Figure 5, case 7 includes being the straight outward extending connecting portion 74 of inverted U-shaped shroud body 73 and the lower end from shroud body 73, described oil through 72 is opened on the side of shroud body 73 (i.e. case 7), the lower surface of described connecting portion 74 and food tray 1 is welded and fixed or is fixed by securing member, thus being connected fixing with food tray 1 for case 7.The pillar 2 being provided with described high position sensor 5 and low sensors 6 is also housed in the inner chamber 71 of case 7, float 3 is enclosed within pillar 2 and slides up and down along pillar 2, therefore fluctuating of float 3 is played guide effect by pillar 2, and then the stability that float 3 fluctuates can be effectively improved, thus improve the accuracy of detection of oil mass detection.Simultaneously, the lower surface of described pillar 2 and the lower surface of food tray 1 are welded and fixed or rivet fixing or screw and fix, for connecting the high position sensor 5 holding wire with signal processor 11 and low sensors 6 and signal processor 11 from the downward outlet in lower end of food tray 1 and from the outside cabling of food tray 1, consequently facilitating grease proofing encapsulation process is done in outlet.
Embodiment three, as shown in Figure 6, case 7 includes being the straight outward extending connecting portion 74 of inverted U-shaped shroud body 73 and the lower end from shroud body 73, described oil through 72 is opened on the side of shroud body 73 (i.e. case 7), the lower surface of described connecting portion 74 and food tray 1 is welded and fixed or is fixed by securing member, thus being connected fixing with food tray 1 for case 7.The pillar 2 being provided with described high position sensor 5 and low sensors 6 is positioned at the outside of shroud body 73, and the lower surface of pillar 2 and the upper surface of connecting portion 74 are welded and fixed or rivet fixing or screw and fix.For connecting the high position sensor 5 holding wire with signal processor 11 and low sensors 6 and signal processor 11 from the downward outlet in lower end of food tray 1 and from the outside cabling of food tray 1, consequently facilitating grease proofing encapsulation process is done in outlet.
In above three embodiment, upper end or the side of described case 7 offer passage, it is prevented that vacuum phenomenon occurs in the region that case 7 is positioned at above float 3, it is ensured that the liquid level in case 7 inner chamber 71 is consistent all the time with the liquid level in food tray 1 oil pocket 101.The inner chamber 71 of described case 7 is installed with the upper back-up ring 9 being oppositely arranged up and down and lower back-up ring 10, the upper-lower position of upper back-up ring 9 and lower back-up ring 10 sets according to the higher limit specified in actual food tray 1 and lower limit, described upper back-up ring 9 and lower back-up ring 10 are respectively positioned in the inner chamber 71 of case 7, described float 3 is between upper back-up ring 9 and lower back-up ring 10, thus limiting the scope that float 3 fluctuates.In embodiment one and embodiment two, upper back-up ring 9 and lower back-up ring 10 are fixed on pillar 2；In embodiment three, upper back-up ring 9 and lower back-up ring 10 are fixed on case 7.
Further, described it be a magnetic elements in the form of a ring by sensing unit 4, be embedded in float 3, described high position sensor 5 and low sensors 6 are Magnetic Induction detector (such as Hall element, tongue tube, magnetic reed tube etc.), therefore, high position sensor 5 and low sensors 6 are the induction mode of proximity with magnetic elements, and high position sensor 5 and low sensors 6 are all through the magnetic elements of annular, and then solve high position sensor 5 and problem that low sensors 6 interferes.Preferably, when sensor is a linear hall sensor, or described high position sensor 5 and low sensors 6 can be integrated into a linear hall sensor, it may be achieved lubricating oil liquid level height, the real-time of oil mass information detect.
In above-described embodiment, described pillar 2 can be made up of a steel pipe (or aluminum pipe, plastic tube, aluminium-alloy pipe etc.), high position sensor 5 and low sensors 6 are fixed in steel pipe, and high position sensor 5 and the low sensors 6 position in steel pipe are determined all in accordance with the higher limit specified in actual food tray 1 and lower limit；After treating that high position sensor 5 and low sensors 6 fix, then the two ends up and down of steel pipe are carried out grease proofing encapsulation process, again steel pipe is fixed with case 7 afterwards.Additionally, it is designed as a single piece by case 7, pillar 2, high position sensor 5, low sensors 6, upper back-up ring 9, lower back-up ring 10, float 3, the sewing machine food tray oil mass detecting device independent that constituted by sensing unit 4 and fixing connecting rod 8, this single piece can overall load in food tray 1 or entirety is removed from food tray 1, install, operation is all easy in dismounting, thus the series of problems such as the installation brought after avoiding food tray 1 and sewing machine food tray oil mass detecting device integrated design, dismounting, maintenance.
In sum, the sewing machine food tray oil mass detecting device that the application provides can detect most high liquid level (HLL) and the minimum level of lubricating oil in food tray simultaneously, and make corresponding judgement according to the detection signal obtained to process, filled it up with prompting by alarm device to the prompting of user one oil-free intuitively or oil, the final normal operation ensureing sewing machine simultaneously.So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention.Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art.Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.
Claims (15)
1. a sewing machine food tray oil mass detecting device, including the food tray (1) being provided with oil pocket (101), it is characterized in that: the pillar (2) that also includes being installed in oil pocket (101), be arranged in oil pocket (101) and the float (3) fluctuated with fluid height of liquid level change in oil pocket (101) and be installed on float (3) by sensing unit (4), described pillar is provided with annular seal space in (2), is installed with for sensing the described sensor by sensing unit (4) in this annular seal space.
2. sewing machine food tray oil mass detecting device according to claim 1, it is characterized in that: it is spaced apart up and down in described annular seal space that described sensor includes high position sensor (5) and low sensors (6), high position sensor (5) and low sensors (6).
3. sewing machine food tray oil mass detecting device according to claim 1, it is characterised in that: described sensor is a linear hall sensor.
4. sewing machine food tray oil mass detecting device according to claim 1, it is characterized in that: also include being installed in oil pocket (101) and being provided with the case (7) of inner chamber (71), the lower end of described case (7) or side offer oil through (72), the oil pocket (101) of food tray (1) is connected by oil through (72) with the inner chamber (71) of case (7), described pillar (2) is fixing with case (7) or food tray (1) to be connected, and described float (3) is housed in the inner chamber (71) of case (7).
5. sewing machine food tray oil mass detecting device according to claim 4, it is characterized in that: the partial struts (2) being provided with described sensor is also housed in the inner chamber (71) of case (7), and described float (3) is enclosed within pillar (2).
6. sewing machine food tray oil mass detecting device according to claim 4, it is characterised in that: upper end or the side of described case (7) offer passage.
7. sewing machine food tray oil mass detecting device according to claim 4, it is characterised in that: the side of described case (7) is connected by least one fixing connecting rod (8) and food tray (1) are fixing.
8. sewing machine food tray oil mass detecting device according to claim 4, it is characterized in that: described case (7) includes being provided with the shroud body (73) of described inner chamber (71) and from the outward extending connecting portion in the lower end (74) of shroud body (73), the lower surface of described connecting portion (74) and food tray (1) is welded and fixed or is fixed by securing member.
9. sewing machine food tray oil mass detecting device according to claim 4, it is characterized in that: the inner chamber (71) of described case (7) is installed with the upper back-up ring (9) being oppositely arranged up and down and lower back-up ring (10), described upper back-up ring (9) and lower back-up ring (10) are respectively positioned in the inner chamber (71) of case (7), and described float (3) is positioned between back-up ring (9) and lower back-up ring (10).
10. sewing machine food tray oil mass detecting device according to claim 1, it is characterised in that: described is a magnetic elements in the form of a ring by sensing unit (4), and described sensor is Magnetic Induction detector.
11. sewing machine food tray oil mass detecting device according to claim 10, it is characterised in that: described Magnetic Induction detector is Hall element or tongue tube or magnetic reed tube.
12. sewing machine food tray oil mass detecting device according to claim 1, it is characterized in that: also include signal processor (11), controller (12) and alarm device (13), described sensor is connected with signal processor (11), and described signal processor (11) is all connected with controller (12) with alarm device (13).
13. sewing machine food tray oil mass detecting device according to claim 12, it is characterized in that: also including the control panel (14) being arranged on sewing machine case and being connected with controller (12), described control panel (14) is provided with multiple operation button.
14. sewing machine food tray oil mass detecting device according to claim 12, it is characterised in that: described alarm device (13) includes the warning lamp (15), language alarm (16) and the flashing icon (17) that are arranged on sewing machine case.
15. a sewing machine, it is characterised in that: this sewing machine is installed just like the sewing machine food tray oil mass detecting device described in any one of claim 1-14.
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| CN201610248486.XA CN105714488B (en) | 2016-04-20 | 2016-04-20 | A kind of sewing machine food tray oil mass detection device and sewing machine |
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| CN201610248486.XA CN105714488B (en) | 2016-04-20 | 2016-04-20 | A kind of sewing machine food tray oil mass detection device and sewing machine |
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| CN106438285A (en) * | 2016-11-30 | 2017-02-22 | 广东美的制冷设备有限公司 | Oil returning detection device, compressor and oil returning control method |
| CN107338587A (en) * | 2017-08-07 | 2017-11-10 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its oil quantity detection system |
| CN109884922A (en) * | 2019-02-14 | 2019-06-14 | 杰克缝纫机股份有限公司 | Sewing machine method for adjusting rotation speed, device, computer equipment and storage medium |
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Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |