CN212077318U

CN212077318U - Right curved needle assembly structure of sewing machine

Info

Publication number: CN212077318U
Application number: CN202020552299.2U
Authority: CN
Inventors: 顾爱国; 李久峰
Original assignee: Shanghai Jingshang Machinery Manufacturing Co ltd
Current assignee: Shanghai Jingshang Machinery Manufacturing Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-12-04
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a sewing machine right looper subassembly structure, which comprises a housing, the middle part of the housing is provided with a chute, the inside of the chute is slidably provided with a sliding sleeve, the left end of the sliding sleeve is provided with a through hole, the inside of the through hole is movably provided with a right looper rod in a penetrating way, the upper end of the right looper rod is fixedly provided with a right looper, the left end of the right looper is provided with a first needle hole, the right end of the right looper is rotatably provided with a first roller, the lower end of the right looper rod is hinged with a swing rod, the right end of the swing rod is fixedly connected with a rotating shaft, the front side wall of the housing and positioned at the upper side of the chute is provided with a first groove, a lubricating oil tank is fixedly arranged inside the first groove, the problem that the lubricating oil of the existing sewing machine is difficult to control is solved, the oil in the initial stage easily drips out when the, the lubricating effect is influenced.

Description

Right curved needle assembly structure of sewing machine

Technical Field

The utility model relates to a sewing machine equipment technical field, specific field is a sewing machine right looper subassembly structure.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. With the development of sewing machine technology, the types of sewing machines are very many at present, and there are household sewing machines, industrial sewing machines and computer sewing machines. Present computer sewing machine's sewing machine constructs including left looper subassembly usually, right looper subassembly, left side looper subassembly, the sewing of surface fabric is realized to right looper subassembly cooperation stationary knife subassembly, sewing machine's right looper is connected on right looper pole, right side looper pole can take place wearing and tearing and produce a large amount of heats at high-speed motion in-process, consequently need enough lubricating oil to lubricate and cool down it, with guarantee sewing machine normal work, current sewing machine lubricating oil is wayward, drip easily when the oil mass in the initial stage oil line is more, the oil mass in the long-time back oil line that uses becomes few, the slide bar waits not fully lubricated again, influence lubricated effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewing machine right side looper subassembly structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sewing machine right looper subassembly structure comprises a machine shell, wherein a sliding groove is arranged in the middle of the machine shell, a sliding sleeve is arranged inside the sliding groove in a sliding manner, a through hole is formed in the left end of the sliding sleeve, a right looper rod penetrates through the inside of the through hole in an activity manner, a right looper is fixedly arranged at the upper end of the right looper rod, a first needle hole is formed in the left end of the right looper, a first roller is rotatably arranged at the right end of the right looper, a swing rod is hinged to the lower end of the right looper rod, a rotating shaft is fixedly connected to the right end of the swing rod, a first groove is formed in the front side wall of the machine shell and positioned on the upper side of the sliding groove, a lubricating oil tank is fixedly arranged inside the first groove, an oil receiving box is fixedly arranged in the left side of the lubricating oil tank and positioned on the left side wall, the winding is equipped with lubricated line on the receipts line roller, all be equipped with the second recess on the lateral wall about the receipts line roller, the equal fixed mounting of lateral wall has the torsional spring about the inner chamber of lubricating-oil tank, the equal joint of one end of torsional spring is in the second recess, the lubricating-oil tank upper end is equipped with the outlet, the up end left side fixed mounting of lubricating-oil tank has the conduit, just be located sliding sleeve upside fixed mounting on the right side bent needle pole and have lubricated coil, lubricated line activity in proper order runs through outlet and conduit, the one end and the lubricated coil fixed connection of lubricated line.

Preferably, a wire smoothing pipe is fixedly mounted on the upper end face of the inner cavity of the lubricating oil tank and positioned at the outlet.

Preferably, a rubber ring is arranged at the outlet.

Preferably, a felt is fixedly arranged at the lower end of the right bent needle rod.

Preferably, the first needle hole and the inner surface of the first roller are both processed by a grinding and polishing process.

Preferably, the left side and the right side of the wire take-up roller are both provided with baffles.

Preferably, the supporting rod is fixedly installed on the lower end face of the inner cavity of the oil receiving box, the second roller is installed at the upper end of the supporting rod, and the lubricating line movably penetrates through the second roller.

Compared with the prior art, the beneficial effects of the utility model are that: a right looper component structure of a sewing machine is provided with a lubricating oil tank, a round shaft, a thread take-up roller, a second groove, a torsion spring and a lubricating wire, wherein the lubricating oil tank is filled with lubricating oil, when a right looper rod moves upwards, the lubricating wire is pulled to move, the lubricating wire drives the wire take-up roller to rotate, the wire take-up roller rotates under the action of the torsion spring, the lubricating oil on the lubricating wire is driven to the right bent needle rod through the transmission between molecules, the right curved needle rod is lubricated, when the right curved needle rod moves downwards, the take-up roller moves towards the initial position under the action of the torsion spring, the take-up roller takes the lubricating wire to take back, can continuously lubricate right looper pole, solve current sewing machine lubricating oil uncontrollable, the easy drippage of oil mass in the initial stage oil line when more, the oil mass in the long-time back oil line that uses becomes few, the slide bar waits again not enough lubricated, influences lubricated effect's problem.

Drawings

Fig. 1 is a schematic front view of a first embodiment of the present invention;

fig. 2 is a schematic sectional view of a lubricating oil tank according to a first embodiment of the present invention;

FIG. 3 is a schematic top view of a sliding sleeve according to an embodiment of the present invention;

fig. 4 is a schematic view of a partial cross-sectional structure of a take-up roller according to a second embodiment of the present invention;

fig. 5 is a schematic view of a third embodiment of the present invention.

In the figure: 1-machine shell, 2-sliding chute, 3-sliding sleeve, 4-through hole, 5-right curved needle bar, 6-right curved needle, 7-first needle hole, 8-first roller, 9-oscillating bar, 10-rotating shaft, 11-first groove, 12-lubricating oil tank, 13-oil receiving box, 14-round shaft, 15-thread collecting roller, 16-lubricating line, 17-second groove, 18-torsion spring, 19-outlet, 20-conduit, 21-lubricating coil, 22-wire smoothing pipe, 23-rubber ring, 24-felt, 25-baffle, 26-supporting rod and 27-second roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, embodiment 1: the utility model provides a technical scheme: a sewing machine right looper assembly structure, please refer to fig. 1, which comprises a housing 1, the housing 1 is used as a fixing and supporting device, a sliding groove 2 is arranged in the middle of the housing 1, a sliding sleeve 3 is arranged in the sliding groove 2 in a sliding manner, the sliding sleeve 3 slides along the sliding groove 2, a right looper rod 5 moves up and down along the sliding sleeve 3 and drives the sliding sleeve 3 to move left and right along the sliding groove 2, so as to realize the routing movement of the right looper 6, please refer to fig. 3, a through hole 4 is arranged at the left end of the sliding sleeve 3, a right looper rod 5 movably penetrates through the through hole 4, a right looper 6 is fixedly arranged at the upper end of the right looper rod 5, a first needle hole 7 is arranged at the left end of the right looper 6, a first roller 8 is rotatably arranged at the right end of the right looper 6, a sewing machine thread passes through the first roller 8 and the first needle hole 7 in sequence, which not only can avoid, the lower end of the right bent needle rod 5 is hinged with a swing rod 9, the right end of the swing rod 9 is fixedly connected with a rotating shaft 10, the rotating shaft 10 drives the swing rod 9 to rotate, the swing rod 9 drives the right bent needle rod 5 to move up and down to realize the lead of the right bent needle 6, a first groove 11 is arranged on the front side wall of the casing 1 and positioned on the upper side of the sliding chute 2, a lubricating oil tank 12 is fixedly arranged in the first groove 11, the lubricating oil tank 12 is used for filling lubricating oil into the lubricating oil tank 12 to lubricate and cool the right bent needle rod 5, an oil receiving box 13 is fixedly arranged in the first groove 11 and positioned on the left side of the lubricating oil tank 12, the oil receiving box 13 is used for collecting the lubricating oil on a lubricating line 16 in a centralized manner to prevent the lubricating oil from dropping on the lubricating line 16, so that the whole device is sanitary and unclean, please refer to figure 2, a round shaft 14 is fixedly arranged on the, the wire take-up roller 15 is wound with the lubricating wire 16, the lubricating wire 16 is dragged, the wire take-up roller 15 starts to rotate, the torsion spring 18 is twisted in the rotating process, the wire take-up roller 15 automatically winds the lubricating wire 16 under the action of the torsion spring 18, the lubricating wire 16 can automatically stretch and retract, the right bent needle rod 5 is lubricated and cooled, the lubricating oil is kept in the lubricating oil tank 12, the lubricating wire 16 can be kept with the lubricating oil all the time, the right bent needle rod 5 is continuously lubricated, the round shaft 14 is rotatably connected with the wire take-up roller 15, the lubricating wire 16 is wound on the wire take-up roller 15, the left side wall and the right side wall of the wire take-up roller 15 are respectively provided with a second groove 17, the left side wall and the right side wall of the inner cavity of the lubricating oil tank 12 are respectively and fixedly provided with the torsion spring 18, one end of the torsion spring 18 is clamped in the second groove 17, the upper end of the lubricating oil tank 12 is provided with a wire outlet 19, the, the winding appearance of lubricated line can not appear, and right looper pole 5 is last and be located 3 upside fixed mounting of sliding sleeve and have lubricated coil 21, and through the oil on the lubricated line 16, according to the transmission between the molecule, transmit lubricating oil to lubricated coil 21 on, continuously lubricate and cool down right looper pole 5, lubricated line 16 activity in proper order runs through outlet 19 and conduit 20, lubricated line 16's one end and lubricated coil 21 fixed connection.

Specifically, the stroker tube 22 is fixedly mounted on the upper end face of the inner cavity of the lubricating oil tank 12 and positioned at the outlet 19, so that the lubricating wire 16 can move smoothly along the stroker tube 22, and the phenomenon of mutual winding is avoided.

Specifically, the rubber ring 23 is arranged at the outlet 19 to prevent the lubricating wire 16 and the lubricating oil tank 12 from rubbing against each other, so that the lubricating wire 16 is disconnected, and the rubber ring 23 is arranged to prolong the service life of the device.

Specifically, the felt 24 is fixedly arranged at the lower end of the right bent needle rod 5, and as the lubricating oil on the lubricating coil 21 falls onto the right bent needle rod 5 and moves downwards along the right bent needle rod 5, the lubricating oil is prevented from dripping, the felt 24 collects the oil flowing to the lower end of the right bent needle rod 5, and meanwhile, the movement of the lower end of the right bent needle rod is smoother.

Specifically, the inner surfaces of the first needle thread hole 7 and the first roller 8 are both processed by a grinding and polishing process, ensuring that the sewing machine thread does not break due to friction through the first needle thread hole 7 and the first roller 8.

The working principle is as follows: the utility model relates to a sewing machine right looper subassembly structure, when using this device, lubricating oil is filled with to lubricating-oil tank 12 inside, the sewing machine line carries out work through first gyro wheel 8 and first needle thread hole 7, right looper pole 5 moves along sliding sleeve 3 upwards under the effect of pendulum rod 9, right looper pole 5 drives lubricating coil 21 upward movement this moment, lubricating coil 21 pulls lubricating line 16 and moves through conduit 20, lubricating line 16 pulls receipts line roller 15 and rotates, receive line roller 15 and twist torsional spring 18 when rotating, lubricating line 16 soaks lubricating oil, through the motion between the molecules, lubricating oil is moved to lubricating oil coil 21, lubricating oil coil 21 carries out continuous lubrication to right looper pole 5, the phenomenon that too much lubricating oil and later stage lubricating oil did not appear at first, when right looper pole 5 moves down under the drive of pendulum rod 9, lubricating line 16 is under the effect of torsional spring 18, receive line roller 15 and resume initial position, lubricated line 16 is along conduit 20 back motion, not only can continuously lubricate and cool down, convenient to use simultaneously, and the practicality is strong.

Referring to fig. 4, example 2: the present embodiment is different from embodiment 1 in that the baffle 25 is installed on both left and right sides of the take-up roller 15, and the structure not mentioned in the present embodiment is described with reference to embodiment 1.

The baffle 25 is installed to the left and right sides of receipts line roller 15 in this embodiment, avoids lubricated line 16 to drop on receiving line roller 15 when baffle 25 effect, can not only be fast receive line and unwrapping wire to lubricated line 16, improves the life of device simultaneously, improves work efficiency, and the practicality is good, and the description of embodiment 1 is referred to the principle that does not mention in this embodiment.

Referring to fig. 5, embodiment 3: the difference between this embodiment and embodiment 1 is that a support rod 26 is fixedly installed on the lower end surface of the inner cavity of the oil receiving box 13, a second roller 27 is installed on the upper end of the support rod 26, and the lubrication line 16 movably penetrates through the second roller 27, and the structure not mentioned in this embodiment is referred to the description of embodiment 1.

Terminal surface fixed mounting bracing piece 26 under the oil receiving box 13 inner chamber in this embodiment, second gyro wheel 27 is installed to the upper end of bracing piece 26, the second gyro wheel 27 is run through in the activity of lubricated line 16, lubricated line 16 passes through the support of second gyro wheel 27, it is spacing to carry out the motion with lubricated line 16, not only avoid the intertwine phenomenon of lubricated line 16, make simultaneously in lubricating oil can drop to oil receiving box 13 on the lubricated line 16, can not be lubricating oil dripping everywhere, the practicality is good, the principle that does not mention in this embodiment please refer to the description of embodiment 1.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sewing machine right looper subassembly structure, includes casing (1), its characterized in that: the middle part of the machine shell (1) is provided with a sliding groove (2), the sliding groove (2) is internally provided with a sliding sleeve (3) in a sliding manner, the left end of the sliding sleeve (3) is provided with a through hole (4), the through hole (4) is internally movably provided with a right looper rod (5) in a penetrating manner, the upper end of the right looper rod (5) is fixedly provided with a right looper (6), the left end of the right looper (6) is provided with a first needle hole (7), the right end of the right looper (6) is rotatably provided with a first roller (8), the lower end of the right looper rod (5) is hinged with a swing rod (9), the right end of the swing rod (9) is fixedly connected with a rotating shaft (10), the front side wall of the machine shell (1) and the upside of the sliding groove (2) are provided with a first groove (11), the first groove (11) is internally and fixedly provided with a lubricating oil tank (12), and the first groove (11) is, the left side wall and the right side wall of the inner cavity of the lubricating oil tank (12) are fixedly provided with a round shaft (14), the round shaft (14) is rotatably connected with a wire collecting roller (15), the thread take-up roll (15) is wound with a lubricating thread (16), the left side wall and the right side wall of the thread take-up roll (15) are both provided with a second groove (17), torsion springs (18) are fixedly arranged on the left side wall and the right side wall of an inner cavity of the lubricating oil tank (12), one end of the torsion spring (18) is clamped in the second groove (17), a wire outlet (19) is arranged at the upper end of the lubricating oil tank (12), a conduit (20) is fixedly arranged on the left side of the upper end surface of the lubricating oil tank (12), a lubricating coil (21) is fixedly arranged on the right bent needle rod (5) and positioned at the upper side of the sliding sleeve (3), the lubricating wire (16) is sequentially and movably penetrated through the wire outlet (19) and the conduit (20), one end of the lubricating wire (16) is fixedly connected with the lubricating coil (21).

2. The right looper assembly structure of a sewing machine according to claim 1, wherein: and a wire smoothing pipe (22) is fixedly arranged on the upper end surface of the inner cavity of the lubricating oil tank (12) and positioned at the wire outlet (19).

3. The right looper assembly structure of a sewing machine according to claim 1, wherein: and a rubber ring (23) is arranged at the outlet (19).

4. The right looper assembly structure of a sewing machine according to claim 1, wherein: the lower end of the right bent needle rod (5) is fixedly provided with a felt (24).

5. The right looper assembly structure of a sewing machine according to claim 1, wherein: the inner surfaces of the first needle thread hole (7) and the first roller (8) are processed by a grinding and polishing process.

6. The right looper assembly structure of a sewing machine according to claim 1, wherein: baffle plates (25) are arranged on the left side and the right side of the wire take-up roller (15).

7. The right looper assembly structure of a sewing machine according to claim 1, wherein: the end face fixed mounting bracing piece (26) under oil receiving box (13) inner chamber, second gyro wheel (27) are installed to the upper end of bracing piece (26), second gyro wheel (27) are run through in the activity of lubrication line (16).