CN210262254U

CN210262254U - Pneumatic presser foot lifting device of sewing machine

Info

Publication number: CN210262254U
Application number: CN201920743656.0U
Authority: CN
Inventors: 刘理
Original assignee: Dongguan Yihao Sewing Equipment Co ltd
Current assignee: Dongguan Yihao Sewing Equipment Co ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-04-07
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a presser foot device is lifted in sewing machine pneumatics, including supporting the fixed block, support fixed block internally mounted has the linkage in the commentaries on classics piece, and link in the commentaries on classics piece top right side and be connected with the linkage push rod, linkage push rod right side externally mounted has the cylinder connector, and cylinder connector right side externally connected has the cylinder, in the linkage piece left side externally connected has the connection fixed block, and connects fixed block internally mounted and have the connecting axle, connecting axle bottom externally connected has weaves the sewing kicking block, and connecting axle top externally mounted has coil spring, coil spring internally connected has spacing compression leg, and spacing compression leg bottom externally connected has the connecting axle, coil spring below externally mounted has the connection fixed block. This linkage elevating gear of sewing machine simple structure, simple to operate can drive the sewing kicking block of weaving and go up and down by sharp driven mode, adopts the motor that uses in the cylinder replacement traditional handicraft, can reduce the probability of motor trouble to promote stability.

Description

Pneumatic presser foot lifting device of sewing machine

Technical Field

The utility model relates to a sewing machine technical field specifically is a presser foot device is lifted to sewing machine pneumatics.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material to enable one or more layers of the sewing material to be interwoven or sewn, 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, the sewn stitches are neat, beautiful, flat and firm, the sewing speed is high, the use is simple and convenient, and artistic forms such as hand-push embroidery computer embroidery and the like are derived.

The commonly used sewing machine uses a motor to drive a weaving sewing top block to lift in a rotating mode, and the method has the problems that the motor is high in cost in the production process and unstable in working.

Disclosure of Invention

An object of the utility model is to provide a presser foot device is lifted in sewing machine pneumatics to the sewing machine commonly used who provides in solving above-mentioned background art uses the motor to drive with rotatory mode and weaves the sewing kicking block and go up and down, and this method has the motor great in the in-process cost of production, and the comparatively unstable problem of during operation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a presser foot device is lifted to sewing machine pneumatics, is including supporting the fixed block, support fixed block internally mounted has the linkage in the commentaries on classics piece, and linkage in commentaries on classics piece top right side is connected with the linkage push rod, linkage push rod right side externally mounted has the cylinder connector, and cylinder connector right side externally connected has the cylinder, linkage in commentaries on classics piece left side externally connected has the connection fixed block, and connects fixed block internally mounted and have the connecting axle, connecting axle bottom externally connected has weaves the sewing kicking block, and connecting axle top externally mounted has coil spring, coil spring internally connected has spacing compression leg, and spacing compression leg bottom externally connected has the connecting axle, coil spring below externally mounted has.

Preferably, spacing compression leg top diameter is greater than spacing compression leg bottom diameter, and the connecting axle internal diameter equals spacing compression leg bottom external diameter to the coil spring external diameter is less than the connecting axle external diameter, and coil spring internal diameter and spacing compression leg top diameter all are greater than the connecting axle internal diameter, spacing compression leg top is passed through the compression leg connecting rod and is connected with the roller, and the roller both sides are equipped with supplementary slide bar, and supplementary slide bar outer end is equipped with and is used for gliding gyro wheel, and its gyro wheel block is in the slide bar slide, the roller passes through supplementary slide bar block in the slide bar slide with spacing compression leg mounting sliding connection, and is equipped with in the spacing compression leg mounting and is used for the rolling convex roller slide of.

Preferably, the inside through-hole structure that is of connection fixed block, and the diameter of connecting fixed block through-hole structure equals the diameter of connecting axle.

Preferably, the linkage transfer block is of an L-shaped structure, and the linkage transfer block is of a rotating structure through being embedded and supporting the fixed block.

Preferably, the linkage push rod and the air cylinder form a fixed structure through the air cylinder connector, and the axis of the linkage push rod and the axis of the connecting shaft and the right side of the linkage middle rotating block are both mutually vertical structures.

Compared with the prior art, the beneficial effects of the utility model are that: this presser foot device is lifted in sewing machine pneumatics simple structure, simple to operate, can drive the sewing kicking block of weaving and go up and down by sharp driven mode, adopt the motor that uses in the cylinder replacement traditional handicraft, can reduce the probability of motor trouble, thereby promote stability, and electronic change is pneumatics, the reaction is more sensitive, it is rapider to remove, reduce the structure error rate, and traditional electrical structure relatively, the problem of line and fold has obviously been improved to pneumatic structure, the price/performance ratio has obtained obvious promotion with production efficiency. This sewing machine linkage elevating gear's spacing compression leg top diameter is greater than spacing compression leg bottom diameter, and the connecting axle internal diameter equals spacing compression leg bottom external diameter, and the coil spring external diameter is less than the connecting axle external diameter, and coil spring internal diameter and spacing compression leg top diameter all are greater than the connecting axle internal diameter, make coil spring can push up between the great part of spacing compression leg top diameter and connecting axle top, and the connecting axle can slide along the less part of spacing compression leg bottom diameter, this sewing machine linkage elevating gear's the inside through-hole structure that is of connection fixed block, and the diameter of connecting fixed block through-hole structure equals the diameter of connecting axle, make the connection fixed block can block and fix together with the connecting axle in the connecting axle outside, in order to make the connection fixed block can drive connecting axle synchronous.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is a structural schematic diagram of the blasting state of the utility model;

FIG. 3 is a schematic side view of the limiting compression leg fixing member of the present invention;

fig. 4 is a schematic view of the front structure of the limiting compression leg fixing member of the present invention.

In the figure: 1. the device comprises a limiting compression leg, 2, a spiral spring, 3, a connecting fixing block, 4, a connecting shaft, 5, a weaving and sewing top block, 6, an air cylinder, 7, a linkage rotating block, 8, a supporting fixing block, 9, a linkage push rod, 10, an air cylinder connector, 11, a compression leg connecting rod, 12, a roller shaft, 13, a roller shaft slideway, 14, an auxiliary sliding rod, 15, a sliding rod slideway, 16 and a limiting compression leg fixing piece.

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. 1-4, the present invention provides a technical solution: a pneumatic presser foot lifting device of a sewing machine comprises a supporting fixed block 8, a linkage transfer block 7 is arranged in the supporting fixed block 8, a linkage push rod 9 is connected to the right side of the top end of the linkage transfer block 7, the linkage transfer block 7 is of an L-shaped structure, the linkage transfer block 7 and the supporting fixed block 8 are of a rotating structure through embedding, the linkage push rod 9 in a horizontal state can be connected with a connecting fixed block 3 and a connecting shaft 4 in a vertical state through the linkage transfer block 7 in the L-shaped structure, the linkage transfer block 7 in the L-shaped structure can rotate along the supporting fixed block 8, the linkage push rod 9 and an air cylinder 6 form a fixed structure through an air cylinder connector 10, the axis of the linkage push rod 9, the axis of the connecting shaft 4 and the right side of the linkage transfer block 7 are of mutually vertical structures, the structure enables the air cylinder 6 to apply pressure above the linkage transfer block 7 when the linkage push rod 9 is driven to transversely move through the air, the axis of the connecting shaft 4 is parallel to the right side of the linkage transfer block 7, a cylinder connector 10 is arranged outside the right side of the linkage push rod 9, a cylinder 6 is connected outside the right side of the cylinder connector 10, a connection fixing block 3 is connected outside the left side of the linkage transfer block 7, a connecting shaft 4 is arranged inside the connection fixing block 3, the inside of the connection fixing block 3 is of a through hole structure, the diameter of the through hole structure of the connection fixing block 3 is equal to that of the connecting shaft 4, the connection fixing block 3 can be clamped outside the connecting shaft 4 and fixed with the connecting shaft 4, so that the connection fixing block 3 can drive the connecting shaft 4 to move synchronously, a weaving sewing top block 5 is connected outside the bottom end of the connecting shaft 4, a spiral spring 2 is arranged outside the upper part of the connecting shaft 4, a limiting pressure column 1 is, the diameter of the top end of the limiting compression leg 1 is larger than the diameter of the bottom end of the limiting compression leg 1, the inner diameter of the connecting shaft 4 is equal to the outer diameter of the bottom end of the limiting compression leg 1, the outer diameter of the spiral spring 2 is smaller than the outer diameter of the connecting shaft 4, and the inner diameters of the spiral spring 2 and the top end of the limiting compression leg 1 are both larger than the inner diameter of the connecting shaft 4, the structure enables the spiral spring 2 to be supported between the part with the larger diameter of the top end of the limiting compression leg 1 and the top end of the connecting shaft 4, the connecting shaft 4 can slide along the part with the smaller diameter of the bottom end of the limiting compression leg 1, the connecting fixing block 3 is arranged outside the lower part of the spiral spring 2, the top end of the limiting compression leg 1 is connected with the roller shaft 12 through the compression leg connecting rod 11, auxiliary sliding rods 14 are arranged on two sides of the roller, and a circular arc-shaped roller shaft slideway 13 for rolling the roller shaft 12 is arranged in the limiting compression leg fixing piece 16.

The working principle is as follows: when the pneumatic presser foot lifting device of the sewing machine is used, an operator can firstly firmly fix the air cylinder 6, the supporting fixed block 8 and the limiting pressure column 1 in the sewing machine, when the weaving and sewing top block 5 is required to be used for lifting the weaving and sewing top block 5, the operator can start the air cylinder 6 to drive the linkage push rod 9 to transversely move through the air cylinder connector 10, then the upper part of the right side of the linkage rotating block 7 can rotate along the supporting fixed block 8 due to the transverse pulling force of the linkage push rod 9, then the connecting fixed block 3 connected with the left side of the linkage rotating block 7 can clamp the connecting shaft 4 and the weaving and sewing top block 5 below the connecting shaft 4 to upwards do circular arc motion along the bottom end of the limiting pressure column 1, at the moment, the weaving and sewing top block 5 can upwards do circular arc track lifting, and the weaving and sewing top block 5 drives the pressure column connecting rod 11 at the top of the weaving and sewing top to upwards do the, the roll shaft 12 moves in the roll shaft slideway 13, and the roll shaft 12 moves in the slide bar slideway 15 through the auxiliary slide bars 14 at the two sides to ensure that the roll shaft 12 does not depart from the limit compression leg fixing piece 16, the limit compression leg fixing piece 16 can be fixed in the sewing machine in a welding mode, and in the process that the connecting fixing block 3 drives the connecting shaft 4 to move upwards, the spiral spring 2 outside the bottom end of the limit compression leg 1 can be extruded and compressed, when the cylinder 6 drives the linkage push rod 9 to move leftwards through the cylinder connector 10, the linkage rotating block 7 can rotate reversely, the connecting shaft 4 can descend under the pulling force of the connecting fixing block 3 and the reacting force of the spiral spring 2, so the weaving sewing top block 5 can descend along with the connecting shaft 4, the cylinder 6 is adopted to replace the motor used in the traditional process, the probability of motor failure can be reduced, and the stability is improved, and electronic change into pneumatics, the reaction is more sensitive, and it is quicker to remove, reduces the structure error rate to relative traditional electronic structure, pneumatic structure has obviously improved the problem of line and fold, and price/performance ratio and production efficiency have obtained obvious promotion, thereby accomplish a series of works.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a presser foot device is lifted to sewing machine pneumatics, includes support fixed block (8), its characterized in that: the device is characterized in that a linkage rotating block (7) is arranged inside a supporting fixed block (8), the right side of the top end of the linkage rotating block (7) is connected with a linkage push rod (9), a cylinder connector (10) is arranged outside the right side of the linkage push rod (9), a cylinder (6) is connected outside the right side of the cylinder connector (10), a connecting fixed block (3) is connected outside the left side of the linkage rotating block (7), a connecting shaft (4) is arranged inside the connecting fixed block (3), a weaving and sewing top block (5) is connected outside the bottom end of the connecting shaft (4), a spiral spring (2) is arranged outside the upper portion of the connecting shaft (4), a limiting pressure column (1) is connected inside the spiral spring (2), a connecting shaft (4) is connected outside the bottom end of the limiting pressure column (1), a connecting fixed block (3) is, spacing compression leg (1) top is connected with roller (12) through compression leg connecting rod (11), and roller (12) both sides are equipped with supplementary slide bar (14), and supplementary slide bar (14) outer end is equipped with and is used for gliding gyro wheel, and its gyro wheel block is in slide bar slide (15), roller (12) through supplementary slide bar (14) block in slide bar slide (15) with spacing compression leg mounting (16) sliding connection, and be equipped with in spacing compression leg mounting (16) and be used for the rolling convex roller slide (13) of roller (12).

2. A sewing machine pneumatic presser foot lifting device according to claim 1, characterized in that: the top end diameter of the limiting compression column (1) is larger than the bottom end diameter of the limiting compression column (1), the inner diameter of the connecting shaft (4) is equal to the outer diameter of the bottom end of the limiting compression column (1), the outer diameter of the spiral spring (2) is smaller than the outer diameter of the connecting shaft (4), and the inner diameter of the spiral spring (2) and the top end diameter of the limiting compression column (1) are larger than the inner diameter of the connecting shaft (4).

3. A sewing machine pneumatic presser foot lifting device according to claim 1, characterized in that: the inside of the connecting fixing block (3) is of a through hole structure, and the diameter of the through hole structure of the connecting fixing block (3) is equal to that of the connecting shaft (4).

4. A sewing machine pneumatic presser foot lifting device according to claim 1, characterized in that: the linkage rotating block (7) is of an L-shaped structure, and the linkage rotating block (7) is of a rotating structure through being embedded and supporting the fixed block (8).

5. A sewing machine pneumatic presser foot lifting device according to claim 1, characterized in that: the linkage push rod (9) and the air cylinder (6) form a fixed structure through the air cylinder connector (10), and the axis of the linkage push rod (9) and the axis of the connecting shaft (4) and the right side of the linkage rotating block (7) are both mutually perpendicular structures.