CN215593370U

CN215593370U - Sewing machine with presser foot lifting device

Info

Publication number: CN215593370U
Application number: CN202122113516.5U
Authority: CN
Inventors: 应迨吉
Original assignee: Zhejiang Aikemei Sewing Machine Co ltd
Current assignee: Zhejiang Aikemei Sewing Machine Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-21
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a sewing machine with a presser foot lifting device, which realizes the longitudinal sliding of a presser foot rod and a presser foot block through a longitudinal slide rail and a first slide block and the transverse sliding of the presser foot rod and the presser foot block through a transverse slide rail and a second slide block in the specific use process of the sewing machine, so that the presser foot block of the sewing machine can freely move in a certain range, when the sewing machine is used for sewing in a small area, the whole cloth does not need to be frequently moved, only the presser foot block needs to be moved, meanwhile, when the cloth needs to be lifted and loosened by the presser foot block, an electric air pump sucks air from an oil tank, so that the air pressure in the oil tank is reduced, hydraulic oil in a lower hydraulic pipe flows into the oil tank through a first oil guide pipe and a second oil guide pipe, the pressure in the lower hydraulic pipe is reduced and is lifted upwards to balance the internal pressure, at the moment, the presser foot block is linked to complete the function of lifting the presser foot, and when the presser foot block needs to be pressed downwards to press the cloth, only the electric air pump is required to blow air, the air pressure in the oil tank is increased, and the lower hydraulic pipe moves downwards to complete the pressing function of the presser foot block.

Description

Sewing machine with presser foot lifting device

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a sewing machine with a presser foot lifting device.

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 sewing materials 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, plastics, paper and the like, the sewn stitches are neat, beautiful, flat and firm, the sewing speed is high, the use is simple and convenient, artistic forms such as hand-push embroidery computer embroidery and the like are derived, the classification methods of the sewing machine are numerous and are generally distinguished according to the stitches and the purposes, the stitches of the sewing machine can be classified into two types of lock stitches and chain stitches, the general sewing machine is composed of a machine head, a machine base, a transmission and accessories, most sewing machines are provided with components for fixing sewing cloth, so that the sewing machine is convenient to sew the sewing cloth, the phenomenon that the cloth shakes during threading to affect the sewing effect is avoided, and a device which can lift and fall down during the sewing process of the presser foot can be used for lifting the presser foot, the presser foot lifting device of the existing sewing machine is relatively fixed and cannot move within a small range, a user needs to frequently move cloth when sewing, the working efficiency of the user is affected, meanwhile, the existing presser foot lifting device generally adopts a mode of operation of a linkage rod and a gear and is complex in structure, and therefore the sewing machine with the presser foot lifting device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sewing machine with a presser foot lifting device, which solves the problems that the general sewing machine proposed in the background technology consists of four parts, namely a machine head, a machine base, a transmission part and an accessory part, most sewing machines are provided with a presser foot component for fixing sewing cloth, so that the sewing is convenient, the cloth is prevented from shaking during threading to influence the sewing effect, a device for lifting and dropping the presser foot in the sewing process is used as the presser foot lifting device, the existing presser foot lifting device of the sewing machine is relatively fixed and cannot move in a small range, the cloth needs to be frequently moved by a user during sewing to influence the working efficiency of the user, and the existing presser foot lifting device generally adopts a mode of operating an interlocking rod and a gear to work and has a complex structure.

In order to achieve the purpose, the utility model provides the following technical scheme: a sewing machine with a presser foot lifting device comprises a main body shell, wherein a connecting rod is arranged on the upper surface inside the main body shell, a longitudinal sliding rail is arranged at the lower end of the connecting rod, the longitudinal sliding rail is connected with a first sliding block in a sliding manner, a transverse sliding rail is arranged on the lower surface of the first sliding block, a second sliding block is connected with the transverse sliding rail in a sliding manner, a presser foot sleeve is arranged on the lower surface of the second sliding block, an opening is formed in the lower surface of the main body shell, the presser foot sleeve extends out of the main body shell through the opening, an upper hydraulic pipe is arranged on the upper surface inside the presser foot sleeve, a lower hydraulic pipe is connected with the upper hydraulic pipe in a sleeved manner, sealing rubber is arranged at the joint of the lower hydraulic pipe and the upper hydraulic pipe, a rubber disc is arranged at the lower end of the upper hydraulic pipe, the diameter of the rubber disc is the same as the inner diameter of the lower hydraulic pipe, and two oil through holes are formed in the rubber disc, the lower surface of lower hydraulic pressure pipe is equipped with the presser bar, the telescopic lower surface of presser bar is equipped with the opening, the lower extreme of presser bar stretches out the presser bar sleeve through the opening, the lower extreme of presser bar is equipped with the presser bar piece, the side surface of lower hydraulic pressure pipe is equipped with the connector No. one, the one end of connector is equipped with oil pipe of leading No. one, oil pipe's one end is equipped with the connector No. two, the one end of connector No. two is equipped with oil pipe of leading No. two, oil pipe's one end is equipped with the oil tank No. two, the upper surface of oil tank is equipped with electronic air pump, the upper surface of main part shell is equipped with the singlechip, the singlechip is connected with electronic air pump electricity.

Preferably, the inside of the main body case is provided with a sewing structure.

Preferably, the front surface of the main body shell is provided with a control panel, the control panel is provided with a control button, and the control panel is electrically connected with a single chip microcomputer and a sewing structure.

Preferably, the lower surface of the main body shell is provided with a sewing machine base, and the upper surface of the sewing machine base is provided with a sewing base plate.

Preferably, a fixing bracket is arranged on the lower surface of the sewing machine base.

Compared with the prior art, the utility model has the beneficial effects that: a sewing machine with a presser foot lifting device.

(1) In this sewing machine's specific use, realize presser bar, the longitudinal sliding of presser foot piece through vertical slide rail and slider No. one, realize the lateral sliding of presser bar and presser foot piece through horizontal slide rail and No. two sliders for this sewing machine's presser foot piece can freely remove in the certain extent, uses when carrying out the subregion sewing, need not frequently to remove the monoblock cloth again, only needs to remove the presser foot piece, reducible user's work load has improved user's work efficiency.

(2) The sewing machine adopts a hydraulic mode to realize the lifting and falling of the presser foot block, the result is relatively simple and stable, and the single chip microcomputer can be used for controlling the frequency of the positive suction and the negative suction of the electric air pump, so that the automatic lifting of the presser foot is realized, and the frequency is controllable.

Drawings

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

FIG. 2 is a front sectional structural view of the present invention;

fig. 3 is an enlarged schematic view of a region a of fig. 2.

In the figure: 1-main body shell, 2-connecting rod, 3-longitudinal slide rail, 4-first slide block, 5-transverse slide rail, 6-second slide block, 7-presser foot sleeve, 8-upper hydraulic pipe, 9-lower hydraulic pipe, 10-rubber disc, 11-presser foot rod, 12-presser foot block, 13-first connecting port, 14-second connecting port, 15-second oil guide pipe, 16-oil tank, 17-electric air pump, 18-single chip microcomputer, 19-control panel, 20-control button, 21-sewing machine base, 22-sewing backing plate, 23-fixed support, 24-first oil guide pipe and 25-sealing rubber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a sewing machine with a presser foot lifting device comprises a main body shell 1, wherein a connecting rod 2 is arranged on the upper surface inside the main body shell 1, a longitudinal slide rail 3 is arranged at the lower end of the connecting rod 2, a first slide block 4 is connected to the longitudinal slide rail 3 in a sliding manner, a transverse slide rail 5 is arranged on the lower surface of the first slide block 4, a second slide block 6 is connected to the transverse slide rail 5 in a sliding manner, a presser foot sleeve 7 is arranged on the lower surface of the second slide block 6, an opening is formed in the lower surface of the main body shell 1, the presser foot sleeve 7 extends out of the main body shell 1 through the opening, an upper hydraulic pipe 8 is arranged on the upper surface inside the presser foot sleeve 7, the upper hydraulic pipe 8 is connected with a lower hydraulic pipe 9 in a sleeved manner, sealing rubber 25 is arranged at the joint of the lower hydraulic pipe 9 and the upper hydraulic pipe 8, a rubber disc 10 is arranged at the lower end of the upper hydraulic pipe 8, the diameter of the rubber disc 10 is the same as the inner diameter of the lower hydraulic pipe 9, the sewing machine is characterized in that two oil through holes are formed in the rubber disc 10, a presser bar 11 is arranged on the lower surface of the lower hydraulic pipe 9, an opening is formed in the lower surface of the presser foot sleeve 7, the lower end of the presser bar 11 extends out of the presser foot sleeve 7 through the opening, a presser bar block 12 is arranged at the lower end of the presser bar 11, a first connecting port 13 is arranged on the side surface of the lower hydraulic pipe 9, a first oil guide pipe 24 is arranged at one end of the first connecting port 13, a second connecting port 14 is arranged at one end of the first oil guide pipe 24, a second oil guide pipe 15 is arranged at one end of the second connecting port 14, an oil tank 16 is arranged at one end of the second oil guide pipe 15, an electric air pump 17 is arranged on the upper surface of the oil tank 16, a single chip microcomputer 18 is arranged on the upper surface of the main body shell 1, the single chip microcomputer 18 is electrically connected with the electric air pump 17, and the presser bar 11 is realized through a longitudinal slide rail 3 and a first slide block 4 in the specific use process of the sewing machine, The longitudinal sliding of the presser foot block 12, realize the transverse sliding of presser foot lever 11 and presser foot block 12 through the transverse slide rail 5 and No. two slide blocks 6, make the presser foot block 12 of this sewing machine can move freely in certain range, use while carrying on the small area sewing, do not need to move the monoblock cloth frequently again, only need to move the presser foot block 12, reducible the work load of the real person, has improved the work efficiency of the user, meanwhile, when needing to lift and loosen the cloth on the presser foot block 12, the electronic air pump 17 sucks air from the oil tank 16, make the atmospheric pressure in the oil tank 16 reduce, the hydraulic oil inside the lower hydraulic pipe 9 will flow into the oil tank 16 through the oil pipe 24 of the first number and No. two oil pipes 15, the pressure in the lower hydraulic pipe 9 reduces and moves up to balance the internal pressure, the presser foot block 12 is linked at this moment, finish the function of lifting the presser foot, when needing to press the presser foot block 12 to press the cloth, only need to make the electronic air pump 17 blow, the pressure in the oil tank 16 is increased, the lower hydraulic pipe 9 moves downwards to complete the pressing function of the presser foot block 12, the lifting and falling of the presser foot block 12 are realized by adopting a hydraulic mode, the result is relatively simple and stable, the frequency of the positive suction and the negative suction of the electric air pump 17 can be controlled by the single chip microcomputer 18, and the automatic presser foot lifting and frequency control are realized.

Specifically, the inside of the main body case 1 is provided with a sewing structure, and the detailed structure thereof is not described again.

Specifically, the front surface of the main body case 1 is provided with a control panel 19, the control panel 19 is provided with a control button 20, and the control panel 19 is electrically connected with a single chip microcomputer 18 and a sewing structure.

Specifically, the lower surface of the main body case 1 is provided with a sewing machine base 21, and the upper surface of the sewing machine base 21 is provided with a sewing bed 22.

Specifically, a fixing bracket 23 is provided on a lower surface of the sewing machine base 21.

The working principle is as follows: in the specific use process of the sewing machine, the longitudinal sliding of the presser bar 11 and the presser block 12 is realized through the longitudinal slide rail 3 and the first slide block 4, the transverse sliding of the presser bar 11 and the presser block 12 is realized through the transverse slide rail 5 and the second slide block 6, so that the presser block 12 of the sewing machine can freely move in a certain range, when the sewing machine is used for small-area sewing, a whole piece of cloth does not need to be frequently moved, only the presser block 12 needs to be moved, the workload of a user can be reduced, the working efficiency of the user is improved, meanwhile, when the cloth needs to be loosened by lifting the presser block 12, the electric air pump 17 sucks air from the oil tank 16, the air pressure in the oil tank 16 is reduced, hydraulic oil in the lower hydraulic pipe 9 can flow into the oil tank 16 through the first oil guide pipe 24 and the second oil guide pipe 15, the pressure in the lower hydraulic pipe 9 is reduced and moves upwards to balance the internal pressure, at the moment, the presser block 12 is linked with the pipe, the function of lifting the presser foot is completed, when the presser foot block 12 is required to be pressed down to press down cloth, only the electric air pump 17 is required to blow, the air pressure in the oil tank 16 is increased, the lower hydraulic pipe 9 moves down to complete the pressing-down function of the presser foot block 12, the sewing machine adopts a hydraulic mode to realize the lifting and falling of the presser foot block 12, the result is relatively simple and stable, in addition, the frequency of positive suction and negative suction of the electric air pump 17 can be controlled by the single chip microcomputer 18, and the automatic presser foot lifting and frequency controllability can be realized.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sewing machine of presser foot device is lifted in area, includes main part shell (1), its characterized in that: the upper surface of the interior of the main body shell (1) is provided with a connecting rod (2), the lower end of the connecting rod (2) is provided with a longitudinal slide rail (3), the longitudinal slide rail (3) is connected with a first slide block (4) in a sliding manner, the lower surface of the first slide block (4) is provided with a transverse slide rail (5), the transverse slide rail (5) is connected with a second slide block (6) in a sliding manner, the lower surface of the second slide block (6) is provided with a presser foot sleeve (7), the lower surface of the main body shell (1) is provided with an opening, the presser foot sleeve (7) extends out of the main body shell (1) through the opening, the upper surface of the interior of the presser foot sleeve (7) is provided with an upper hydraulic pipe (8), the upper hydraulic pipe (8) is connected with a lower hydraulic pipe (9) in a sleeved manner, sealing rubber (25) is arranged at the joint of the lower hydraulic pipe (9) and the upper hydraulic pipe (8), and the lower end of the upper hydraulic pipe (8) is provided with a rubber disc (10), the diameter of the rubber disc (10) is the same as the inner diameter of the lower hydraulic pipe (9), two oil through holes are formed in the rubber disc (10), a presser bar (11) is arranged on the lower surface of the lower hydraulic pipe (9), an opening is formed in the lower surface of the presser bar sleeve (7), the lower end of the presser bar (11) extends out of the presser bar sleeve (7) through the opening, a presser bar block (12) is arranged at the lower end of the presser bar (11), a first connecting port (13) is arranged on the side surface of the lower hydraulic pipe (9), a first oil guide pipe (24) is arranged at one end of the first connecting port (13), a second connecting port (14) is arranged at one end of the first oil guide pipe (24), a second oil guide pipe (15) is arranged at one end of the second oil guide pipe (15), an oil tank (16) is arranged at one end of the second oil guide pipe (15), and an electric air pump (17) is arranged on the upper surface of the oil tank (16), the upper surface of the main body shell (1) is provided with a single chip microcomputer (18), and the single chip microcomputer (18) is electrically connected with the electric air pump (17).

2. A sewing machine with presser foot lifting device according to claim 1, characterized in that: the inside of the main body shell (1) is provided with a sewing structure.

3. A sewing machine with presser foot lifting device according to claim 2, characterized in that: the front surface of main part shell (1) is equipped with control panel (19), be equipped with control button (20) on control panel (19), control panel (19) electricity is connected with singlechip (18) and sewing structure.

4. A sewing machine with presser foot lifting device according to claim 3, characterized in that: the lower surface of the main body shell (1) is provided with a sewing machine base (21), and the upper surface of the sewing machine base (21) is provided with a sewing backing plate (22).

5. A sewing machine with presser foot lifting device according to claim 4, characterized in that: the lower surface of the sewing machine base (21) is provided with a fixed bracket (23).