Oil supply device of sewing machine

Abstract

The utility model discloses an oil supply device for a sewing machine, which is mounted on the sewing machine and comprises an oil tank and an oil pump, the oil tank is made of transparent plastics and comprises a filter tank and a storage tank communicated with the filter tank, and an oil inlet of the oil pump is communicated into the storage tank through an oil pipe; the filter assembly is mounted in the filter box, and the filter assembly comprises three mounting frames which are slidably connected to the filter box and are horizontally distributed up and down; the dustproof net is mounted in the uppermost mounting frame; the iron removal assembly is mounted in the middle mounting frame; the silk wadding filter screen is mounted in the lowermost mounting frame; and the anti-falling pieces are mounted on the side face of the oil tank and used for preventing the mounting frame from being separated from the oil tank. Various impurities can be conveniently filtered and cleaned, the cleanliness of sewing machine oil is guaranteed, and meanwhile the problem that an oil pump and an oil pipe are blocked is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field, concretely is a sewing machine oil supply device. BACKGROUND

[0002] For most modern industrial sewing machines and some high-end domestic sewing machines, a special oil pump is usually equipped to supply oil, and the oil pump can deliver oil to a remote position to meet the lubrication requirements of complex sewing machine structures. The oil tank of the sewing machine is generally open or closed, but from the manufacturing cost and maintenance cost, the closed oil tank is much higher than the open oil tank. However, the open oil tank of the sewing machine will produce some impurities in the oil tank during long-term use, such as: some moving parts such as gears, transmission shafts, cams, needle bars, etc. The tiny metal particles generated by wear will mix into the oil; In addition, during the sewing process, dust and fabric fibers in the surrounding environment may be sucked into the sewing machine, and then mixed into the oil.

[0003] These impurities not only make the sewing machine oil color darker and the viscosity increase, so that it cannot form a uniform oil film on the surface of the parts, thereby reducing the lubrication effect, increasing the friction resistance, and further hindering the normal movement of the parts. Long time will cause parts to wear and tear, accelerate the wear and tear of the sewing machine, reduce the service life of the parts, and at the same time reduce the running accuracy and efficiency of the sewing machine, and make the sewing effect worse, such as uneven sewing line, uneven needle spacing, etc. In addition, the impurities in the oil tank may also block the filter screen, oil pipe and other parts of the oil pump, causing the oil circuit to be blocked, so that the oil pump cannot normally pump and supply oil, and thus the lubrication system of the sewing machine will fail, and each part cannot be lubricated in time, thereby causing a series of faults.

[0004] At present, containers, filter screens, gauze, cleaning cloths and the like are used to hold, filter and wipe and clean the oil tank, which is troublesome. UTILITY MODEL CONTENTS

[0005] In order to solve at least one of the technical problems mentioned in the background art, the purpose of the utility model is to provide a sewing machine oil supply device which can conveniently filter and clean various impurities, ensure the cleanliness of the sewing machine oil, and avoid the problem of oil pump and oil pipe blockage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A sewing machine oil supply device is installed on a sewing machine and comprises an oil tank and an oil pump. The material of the oil tank is transparent plastic. The oil tank comprises a filter tank and a storage tank in communication with the filter tank. The bottom surface of the filter tank is higher than that of the storage tank. The oil inlet of the oil pump is connected to the storage tank through an oil pipe.

[0008] A filter assembly is installed in the filter box, and the filter assembly comprises:

[0009] Three mounting frames are slidably connected to the filter box, and the three mounting frames are horizontally arranged in an upper-lower manner.

[0010] A dustproof screen is installed in the uppermost mounting frame.

[0011] An iron removal assembly is installed in the middle mounting frame.

[0012] A lint filter screen is installed in the lowermost mounting frame.

[0013] A plurality of anti-disengagement pieces are installed on the side of the oil tank, and the anti-disengagement pieces are used for preventing the mounting frames from disengaging from the oil tank.

[0014] Preferably, the mounting frame is provided with a handle on one side.

[0015] Preferably, a pin seat is fixedly connected to the side of the mounting frame close to the handle, the pin seat is provided with an anti-disengagement hole, the anti-disengagement piece comprises a mounting seat fixedly connected to the side of the filter box close to the handle, and a clamping pin is vertically slidably connected in the mounting seat.

[0016] Preferably, a compression spring is arranged between the top of the clamping pin and the mounting seat, and a push handle is fixedly connected to the side of the clamping pin.

[0017] Preferably, two anti-disengagement pieces are arranged in each group, and the two anti-disengagement pieces in the same group are symmetrically arranged about the mounting frame, and a connecting rod is fixedly connected between the push handles of the two anti-disengagement pieces in the same group.

[0018] Preferably, the iron removal assembly comprises an iron plate and iron rods fixedly connected to one side of the iron plate, the iron plate is detachably connected in the mounting frame, and a magnet is adsorbed in the middle of the iron plate.

[0019] Preferably, the iron removal assembly further comprises a scrap plate, the scrap plate comprises a support plate and a rubber plate fixedly connected to one side of the support plate, the support plate and the rubber plate are provided with through holes corresponding to the iron rods, and the rubber plate is in abutment with the iron rods.

[0020] Compared with the prior art, the filter assembly has the following beneficial effects:

[0021] The filter assembly is arranged in the filter box, the dustproof screen, the iron removal assembly and the lint filter screen are respectively arranged on the three mounting frames, the three mounting frames are arranged in parallel in the filter box in an upper-lower manner, the filter assembly is used for multiple filtering of the sewing machine oil, the cleanliness of the oil in the storage tank is ensured, and the problems of blockage of the oil pump and the oil pipe are avoided; during cleaning, the mounting frames are only needed to be pulled out for cleaning of impurities or replacement of the dustproof screen and the lint filter screen, and the operation is relatively convenient. Overall, the filter assembly can conveniently filter and clean various impurities, ensure the cleanliness of the sewing machine oil, and avoid the problems of blockage of the oil pump and the oil pipe. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole structure schematic view of the utility model;

[0023] Figure 2 It is Figure 1 It is the structure enlarged view of A in the middle;

[0024] Figure 3 It is the whole structure schematic view of the utility model after the machine head is opened;

[0025] Figure 4 It is the explosion structure view of the oil tank and filter assembly of the utility model;

[0026] Figure 5 It is the cross section schematic view of the oil tank of the utility model;

[0027] Figure 6 It is Figure 5 It is the structure enlarged view of B in the middle;

[0028] Figure 7 It is the structure schematic view of the iron removing assembly of the utility model.

[0029] In the drawing: 1, machine head; 2, machine base; 3, oil pipe; 4, oil tank; 41, filter box; 42, storage box; 421, oil outlet; 422, oil outlet cover; 51, installation frame; 52, dustproof net; 53, iron removing assembly; 531, iron plate; 532, iron bar; 533, magnet; 534, scrapings plate; 5341, support plate; 5342, rubber plate; 54, silk fluff filter screen; 55, anti-dropping piece; 551, mounting seat; 552, locking pin; 553, compression spring; 554, push handle; 61, handle; 62, pin seat; 621, anti-dropping hole; 7, connecting rod. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] In order to facilitate the design of the utility model has further understanding, the following introduction is made to the oil change steps of the existing sewing machine: first, place a clean container at the oil drain of the sewing machine (usually at the bottom of the machine); then, use a screwdriver to unscrew the oil drain bolt to drain the old oil; then, use a clean cloth or paper towel to wipe the inside of the oil tank, and remove as much surface dirt and impurities as possible; then, filter the discharged old oil through a fine mesh or gauze several times to remove most of the black impurities; finally, close the oil drain screw and re-inject the sewing machine oil. The overall filtering process of the oil is complicated, and the oil cannot be effectively filtered.

[0032] Please refer to Figures 1-7 The embodiment provides a sewing machine oil supply device, which is installed on a sewing machine, the sewing machine comprising a machine base 2 and a machine head 1, the bottom rear side of the machine head 1 being hinged to the machine base 2, the oil supply device comprising an oil tank 4 and an oil pump installed in the machine head, the material of the oil tank 4 being transparent plastic to facilitate observation of the amount of sewing machine oil in the oil tank 4, the oil tank 4 comprising a filter tank 41 and a storage tank 42 communicating with the filter tank 41, the bottom surface of the filter tank 41 being higher than that of the storage tank 42 to facilitate the flow of filtered sewing machine oil to the storage tank 42, the bottom of the storage tank 42 being provided with an oil drain 421, and an oil drain cover 422 being installed at the oil drain 421, and a ball valve can also be installed at the oil drain 421 to drain the oil in the oil tank 4. The oil inlet of the oil pump is communicated with the storage tank 42 through an oil pipe 3; a filter assembly is installed in the filter tank 41 for filtering impurities, the filter assembly comprising: three mounting frames 51 slidably connected to the filter tank 41, and the three mounting frames 51 being horizontally distributed above and below, it should be noted that the connection between the mounting frame 51 and the filter tank 41 should be sealed to prevent oil leakage; a dust screen 52 is installed in the uppermost mounting frame 51 to prevent dust and fabric debris in the air from entering the oil tank 4; an iron removal assembly 53 is installed in the middle mounting frame 51 to further filter iron particles generated by friction during machine operation; a silk filter screen 54 is installed in the lowermost mounting frame 51 to further filter fabric silk; a plurality of anti-disengagement pieces 55 are installed on the side of the oil tank 4, and each anti-disengagement piece 55 is used to prevent one mounting frame 51 from disengaging from the oil tank 4.

[0033] Specifically, the iron removal assembly 53 comprises an iron plate 531 and an iron rod 532 fixedly connected to one side of the iron plate 531, the iron plate 531 is detachably connected in the mounting frame 51, and a magnet 533 is adsorbed in the middle of the iron plate 531. The magnetic conductive property of the magnet 533 can adsorb the iron filings particles generated by the machine wear, avoid the iron filings particles from falling into the storage box 42, ensure the cleanliness of the sewing machine oil, and further ensure the lubricating effect of the sewing machine oil, avoid the problem of wear aggravation caused by iron filings particles during the operation of the machine, and ensure the stability of the machine during operation. Here, the iron plate 531 and the iron rod 532 are preferably made by an integrated forming process.

[0034] Further, the iron removal assembly 53 further comprises a scrap removal plate 534 for scraping the iron filings particles adsorbed on the iron rod 532, the scrap removal plate 534 comprises a support plate 5341 and a rubber plate 5342 fixedly connected to one side of the support plate 5341, and the support plate 5341 and the rubber plate 5342 are both provided with through holes corresponding to the iron rod 532, and the rubber plate 5342 is in abutment with the iron rod 532. When cleaning the iron removal assembly 53, the support plate 5341 can be directly pushed to move along the iron rod 532, and then the iron filings on the iron rod 532 are driven to the edge of the iron rod, so as to facilitate the cleaning of the iron filings particles. It should be noted that the magnet 533 should be removed during cleaning, so that the iron rod 532 loses the magnetic source, and the cleaning of the iron filings particles is facilitated.

[0035] Further, in order to facilitate the replacement and cleaning of dust, fabric debris, fabric lint and iron filings particles, a handle 61 is arranged on the side of each mounting frame 51, and the mounting frame 51 is pulled out through the handle 61 for cleaning of impurities.

[0036] In the following, further introduction is made in combination with specific use scenarios. When adding the sewing machine oil, first open the head 1 around the hinge shaft of the head 1 and the machine base 2 to expose the oil tank 4, then pour the sewing machine oil towards the dust filter screen on the filter box 41, the sewing machine oil will flow into the storage box 42 after passing through the filter box 41, after adding the sewing machine oil, place the head 1 back in place, and it can be used. During the long-term use of the head 1, dust, fabric debris, fabric lint and iron filings generated by the operation of the machine may fall into the oil tank 4 above, and the threefold filtration of the dust screen, the iron removal assembly 53 and the lint filter screen 54 can effectively prevent impurities from entering the storage box 42. When the oil in the oil tank 4 needs to be supplemented, the oil can still be directly supplemented to the filter box 41, and through the dust screen, the iron removal assembly 53 and the lint filter screen 54, new oil will not enter the storage box 42, which can effectively ensure the cleanliness of the sewing machine oil in the storage box 42, and thus the problem of oil pump and oil pipe blockage is avoided, ensuring the use stability and service life of the sewing machine. Further, when it is necessary to clean the impurities of the filter box 41, open the oil drain cover 422, first pour the oil in the oil tank out from the bottom oil drain port 421, then only need to unlock the locking of the anti-dropping piece 55 to the installation frame 51, and then take out the installation frame 51 from the filter box 41 through the handle 61, and then clean or replace the single cleaning part of the filter assembly, which is very convenient. It should be noted that the dust screen 52 and the lint filter screen 54 can be cleaned or replaced, and the dust removal assembly only needs to be cleaned. Specifically, the magnet 533 on the iron plate 531 is removed, the magnetic property of the iron rod 532 is lost, the support plate 5341 of the scrap plate 534 is pushed, the rubber plate 5342 moves along the axis of the iron rod 532, and the iron filings are scraped off from the iron rod 532, so that the iron removal assembly 53 is cleaned.

[0037] By setting the filter assembly in the filter box 41, the dust screen 52, the iron removal assembly 53 and the lint filter screen 54 are respectively installed on the three installation frames 51, and the three installation frames 51 are installed in parallel in the filter box 41, the filter assembly is used for multiple filtration of the sewing machine oil, the cleanliness of the oil in the storage box 42 is ensured, and the problem of oil pump and oil pipe blockage is avoided; when cleaning, only the installation frame needs to be pulled out for cleaning or replacement of the dust screen and the lint filter screen, which is relatively convenient. Overall, it can conveniently filter and clean various impurities, ensure the cleanliness of the sewing machine oil, and avoid the problem of oil pump and oil pipe blockage.

[0038] Reference Figures 2-7As a specific embodiment of the present application, the pin seat 62 is fixed on the side of the mounting frame 51 close to the handle 61, and the anti-disengagement hole 621 is formed in the pin seat 62. The anti-disengagement piece 55 includes the mounting seat 551 fixed on the side of the filter box 41 close to the handle 61, and the clamping pin 552 is vertically and slidingly connected in the mounting seat 551. When the mounting frame 51 is completely installed into the filter box 41, the clamping pin 552 is inserted into the anti-disengagement hole 621, so as to ensure the stability of the position of the mounting frame 51.

[0039] Further, the compression spring 553 is installed between the top of the clamping pin 552 and the mounting seat 551, and the push handle 554 is fixed on the side of the clamping pin 552.

[0040] In combination with a specific use scenario, when it is necessary to clean or replace a certain filter part of the filter assembly, the push handle 554 needs to be lifted first, so that the clamping pin 552 is separated from the anti-disengagement hole 621, and then the locking between the mounting frame 51 and the filter box 41 is released, and then the mounting frame 51 can be taken out to clean the impurities in the mounting frame 51 or replace the filter part. When the mounting frame 51 is installed, the push handle 554 is lifted first, and then the mounting frame 51 is pushed along the mounting groove of the filter box 41 until the clamping pin 552 is aligned with the anti-disengagement hole 621, and then the push handle 554 is released. Under the action of the self-weight of the push handle 554 and the compression spring 553, the clamping pin 552 is clamped into the anti-disengagement hole 621, so as to ensure the stability of the position locking of the mounting frame 51.

[0041] Further, in order to ensure the stability of the position locking of the mounting frame 51, two anti-disengagement pieces 55 are arranged symmetrically about the mounting frame 51, and the push handles 554 of the two anti-disengagement pieces 55 in the same group are fixed with the connecting rod 7 for facilitating the simultaneous control of the movement of the two push handles 554. The use of the two anti-disengagement pieces 55 is equivalent to increasing the locking area between the filter box 41 and the mounting frame 51, so as to ensure the stability of the position locking of the mounting frame 51. When the mounting frame 51 needs to be opened, the two push handles 554 can be controlled to move by lifting the connecting rod 7, so that the clamping pin 552 is separated from the anti-disengagement hole 621, and the locking of the mounting frame 51 is released, so that the mounting frame 51 can be taken out from the filter box 41.

[0042] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. An oil supply device for a sewing machine, which is installed on a sewing machine and comprises an oil tank (4) and an oil pump, characterized in that: the material of the oil tank (4) is transparent plastic, the oil tank (4) comprises a filter box (41) and a storage box (42) in communication with the filter box (41), the bottom surface of the filter box (41) is higher than that of the storage box (42), and the oil inlet of the oil pump is communicated with the storage box (42) through an oil pipe (3); a filter assembly is installed in the filter box (41), and the filter assembly comprises: three mounting frames (51) which are slidingly connected to the filter box (41) and are horizontally distributed in three layers; a dustproof screen (52) which is installed in the uppermost mounting frame (51); an iron removal assembly (53) which is installed in the middle mounting frame (51); a lint filter screen (54) which is installed in the lowermost mounting frame (51); and a plurality of anti-disengagement pieces (55) which are installed on the side surface of the oil tank (4) and are used to prevent the mounting frames (51) from disengaging from the oil tank (4). One side of the mounting frame (51) is provided with a handle (61).

2. The oil supply device for a sewing machine according to claim 1, wherein The mounting frame (51) is fixedly connected to a pin seat (62) on the side close to the handle (61), the pin seat (62) is provided with an anti-disengagement hole (621), the anti-disengagement piece (55) comprises a mounting seat (551) which is fixedly connected to the side of the filter box (41) close to the handle (61), and a clamping pin (552) which is slidingly connected vertically in the mounting seat (551).

3. A sewing machine oil supply device according to claim 2, characterized in that: A compression spring (553) is installed between the top of the clamping pin (552) and the mounting seat (551), and a push handle (554) is fixedly connected to the side surface of the clamping pin (552).

4. The oil supply device for a sewing machine according to claim 3, wherein Each group of anti-disengagement pieces (55) comprises two anti-disengagement pieces (55) which are symmetrically arranged about the mounting frame (51), and a connecting rod (7) is fixedly connected between the push handles (554) of the two anti-disengagement pieces (55) in the same group.

5. The oil supply device for a sewing machine according to claim 4, wherein The iron removal assembly (53) comprises an iron plate (531) and an iron rod (532) which is fixedly connected to one side of the iron plate (531), the iron plate (531) is detachably connected to the mounting frame (51), and a magnet (533) is adsorbed to the middle portion of the iron plate (531).

6. The oil supply device for a sewing machine according to claim 1, wherein The iron removal assembly (53) further comprises a scrap removing plate (534), the scrap removing plate (534) comprises a support plate (5341) and a rubber plate (5342) which is fixedly connected to one side of the support plate (5341), the support plate (5341) and the rubber plate (5342) are both provided with through holes corresponding to the iron rods (532), and the rubber plate (5342) is in abutment with the iron rods (532).

7. The oil supply device for a sewing machine according to claim 6, wherein ​

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