CN216404714U

CN216404714U - Novel sewing machine for serging trouser legs

Info

Publication number: CN216404714U
Application number: CN202122967327.4U
Authority: CN
Inventors: 黄海燕
Original assignee: Fujian Nishifan Clothing Co ltd
Current assignee: Fujian Nishifan Clothing Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-29
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a novel trouser leg hem sewing machine, which comprises a sewing machine body and a hem locking needle on the sewing machine body, wherein a U-shaped presser foot is arranged on the outer side of the hem locking needle, and a pressure-adjustable hem pressing mechanism is fixedly arranged on the left side in the sewing machine body; the pressure-adjustable edge pressing mechanism comprises an L-shaped supporting rod fixedly connected to the left side inside the sewing machine body, a rectangular rod is fixedly connected to the inner wall of the top of the L-shaped supporting rod, a rectangular tube with the bottom end being of a blocking structure is slidably sleeved on the rectangular rod, and the bottom end of the rectangular tube is fixedly connected with the right side of the top of the U-shaped presser foot. The U-shaped presser foot locking device is convenient for automatically locking the U-shaped presser foot to prevent falling when the U-shaped presser foot moves upwards, prevents shielding when a person places trouser legs, is convenient for quickly flattening the bent trouser legs, is convenient for quickly adjusting the pressure on the trouser legs according to actual requirements, can be suitable for stably flattening the bent trouser legs with different material hardness, improves the use stability, and meets the use requirements.

Description

Novel sewing machine for serging trouser legs

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a novel sewing machine for serging trouser legs.

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 make one or more layers of sewing materials interweave or sew up, 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 general sewing machine is composed of four parts including a machine head, a machine base and a transmission part and an accessory, the machine head is a main part of the sewing machine and is composed of four mechanisms including a thorn material, a thread hooking part, a thread picking part and a feeding part and auxiliary mechanisms including a winding part, a material pressing part, a tooth dropping part and the like, the movement of the mechanisms is reasonably matched and circularly work to sew up the sewing material, the machine base is divided into a bedplate and a cabinet, the bedplate of the bedplate serves as a supporting machine head, the bedplate serves as a cabinet type workbench during sewing operation, the bedplate has various types, and has a one or more hopper folding type, a writing desk and the like, the cabinet of the cabinet type machine base serves as a supporting and a storing machine head, the transmission part of the sewing machine is composed of a frame, a hand crank or a motor and the like, the frame is a support of the machine and supports a bedplate and a pedal plate, an operator steps on the pedal plate when using the sewing machine, the crank drives a belt pulley to rotate and drives a machine head to rotate through a belt, and most of the hand crank or the motor are directly connected to the machine head.

The sewing of the clothes trouser legs often requires a sewing machine to carry out the sewing, at present, the sewing operation generally comprises that the part of the trouser legs which needs to be subjected to the sewing is bent and then moved under a presser foot of the sewing machine, and then the sewing machine is adopted to carry out the sewing; the pressure of current sewing machine, its presser foot to the bottom of a trouser leg exists the shortcoming of being not convenient for according to actual need quick adjustment, when to the harder clothing lockstitch of some materials, can not effectually flatten clothing lockstitch department, and then inconvenient personnel carry out the lockstitch, can not satisfy the user demand, for this reason we have proposed the sewing machine of a novel bottom of a trouser leg lockstitch for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a novel sewing machine for locking edges of trouser legs.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a novel trouser leg hem sewing machine comprises a sewing machine body and a hem locking needle on the sewing machine body, wherein a U-shaped presser foot is arranged on the outer side of the hem locking needle, and a pressure-adjustable hem pressing mechanism is fixedly mounted on the left side inside the sewing machine body;

the pressure-adjustable edge pressing mechanism comprises an L-shaped supporting rod fixedly connected to the left side inside the sewing machine body, a rectangular rod is fixedly connected to the inner wall of the top of the L-shaped supporting rod, a rectangular pipe with the bottom end of a blocking structure is sleeved on the rectangular rod in a sliding mode, the bottom end of the rectangular pipe is fixedly connected with the right side of the top of the U-shaped presser foot, a rectangular groove is formed in the left side of the rectangular rod, a thread driving assembly is rotatably connected to the inner wall of the bottom of the rectangular groove, the bottom end of the thread driving assembly extends into the rectangular pipe and is fixedly connected with a pressure adjusting block, a first spring is fixedly connected between the bottom of the pressure adjusting block and the inner wall of the bottom of the rectangular pipe, the top end of the thread driving assembly extends to the upper portion of the L-shaped supporting rod and is fixedly connected with a knob, a push rod is fixedly connected to the bottom of the right side of the rectangular pipe, a clamping groove located above the push rod is formed in the right side of the rectangular pipe, and an elastic self-clamping assembly is movably contacted with the right side of the rectangular pipe, the elastic self-clamping assembly is located above the clamping groove and matched with the clamping groove, the right side of the L-shaped supporting rod is provided with a groove, and the right side of the elastic self-clamping assembly penetrates through the groove and extends to the right side of the L-shaped supporting rod.

Preferably, the screw thread drive assembly is including rotating the screw rod of connection on the inner wall of rectangular channel bottom, and the thread bush is equipped with the nut on the screw rod, the bottom left side fixedly connected with rectangle guide bar of nut, the bottom of rectangle guide bar extend to the below of rectangle pole and with the top fixed connection who transfers the briquetting, the top of screw rod extend to the top of L shape branch and with the bottom fixed connection of knob.

Preferably, elasticity is from calorie subassembly including setting up the T shape kelly on the rectangular pipe right side, the left end nestification of T shape kelly has the ball, the right side rolling contact of ball and rectangular pipe, the right side of T shape kelly runs through right side and the fixedly connected with pull ring that the recess extended to L shape branch, fixedly connected with is in tensile state's extension spring between the right side inner wall of T shape kelly and the left side inner wall of recess, and extension spring movable sleeve establishes on T shape kelly, T shape kelly is located the top of draw-in groove and cooperatees with the draw-in groove.

Preferably, the inner wall of the bottom of the rectangular groove is fixedly connected with a first bearing, the top of the L-shaped supporting rod and the inner wall of the top of the rectangular groove are provided with a same first round hole, a second bearing is fixedly sleeved in the first round hole, and the inner side of the inner ring of the second bearing and the inner side of the inner ring of the first bearing are fixedly connected with the outer side of the screw rod.

Preferably, the inner wall of the bottom of the rectangular groove is provided with a rectangular hole in sliding connection with the outer side of the rectangular guide rod.

Preferably, a second round hole is formed in the inner wall of the left side of the groove, and the inner wall of the second round hole is connected with the outer side of the T-shaped clamping rod in a sliding mode.

Preferably, the outer side of the pressure regulating block is in sliding contact with the inner wall of the rectangular tube.

Compared with the prior art, the utility model has the beneficial effects that:

the U-shaped presser foot locking device is convenient for automatically locking the U-shaped presser foot to prevent falling when the U-shaped presser foot moves upwards, prevents shielding when a person places trouser legs, is convenient for quickly flattening the bent trouser legs, is convenient for quickly adjusting the pressure on the trouser legs according to actual requirements, can be suitable for stably flattening the bent trouser legs with different material hardness, improves the use stability, and meets the use requirements.

Drawings

FIG. 1 is a schematic structural view of a sewing machine for serging pants legs according to the present invention;

FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1;

FIG. 3 is an enlarged view of the portion B in FIG. 2;

FIG. 4 is a schematic diagram of a right view structure of a U-shaped presser foot of the sewing machine for serging the trouser legs of the present invention.

In the figure: 100. a sewing machine body; 101. a lock stitch; 102. a U-shaped presser foot; 1. an L-shaped strut; 2. a rectangular bar; 3. a rectangular tube; 4. adjusting the pressure block; 5. a first spring; 6. a push rod; 7. a screw; 8. a nut; 9. a rectangular guide bar; 10. a knob; 11. a rectangular groove; 12. a groove; 13. a T-shaped clamping rod; 14. a ball bearing; 15. an extension spring; 16. a pull ring; 17. a clamping groove.

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.

Referring to fig. 1-4, a novel trouser leg hem stitching sewing machine comprises a sewing machine body 100 and a hem stitching needle 101 on the sewing machine body 100, wherein a U-shaped presser foot 102 is arranged on the outer side of the hem stitching needle 101, and a pressure-adjustable hem mechanism is fixedly arranged on the left side inside the sewing machine body 100;

the pressure-adjustable edge pressing mechanism comprises an L-shaped support rod 1 fixedly connected to the left side inside a sewing machine body 100, a rectangular rod 2 is fixedly connected to the inner wall of the top of the L-shaped support rod 1, a rectangular tube 3 with the bottom end of a blocking structure is sleeved on the rectangular rod 2 in a sliding mode, the bottom end of the rectangular tube 3 is fixedly connected with the right side of the top of a U-shaped presser foot 102, a rectangular groove 11 is formed in the left side of the rectangular rod 2, a thread driving assembly is rotatably connected to the inner wall of the bottom of the rectangular groove 11, the bottom end of the thread driving assembly extends into the rectangular tube 3 and is fixedly connected with a pressure regulating block 4, a first spring 5 is fixedly connected between the bottom of the pressure regulating block 4 and the inner wall of the bottom of the rectangular tube 3, the top end of the thread driving assembly extends to the upper side of the L-shaped support rod 1 and is fixedly connected with a knob 10, a push rod 6 is fixedly connected to the bottom of the right side of the rectangular tube 3, a clamping groove 17 located above the push rod 6 is formed in the right side of the rectangular tube 3, the right side of the rectangular tube 3 is movably contacted with an elastic self-clamping assembly, the elastic self-clamping assembly is positioned above the clamping groove 17 and matched with the clamping groove 17, the right side of the L-shaped supporting rod 1 is provided with a groove 12, and the elastic self-clamping assembly penetrates through the groove 12 from the right side and extends to the right side of the L-shaped supporting rod 1;

the thread driving assembly comprises a screw rod 7 which is rotatably connected to the inner wall of the bottom of the rectangular groove 11, a nut 8 is sleeved on the screw rod 7 in a threaded manner, a rectangular guide rod 9 is fixedly connected to the left side of the bottom of the nut 8, the bottom end of the rectangular guide rod 9 extends to the lower side of the rectangular rod 2 and is fixedly connected with the top of the pressure regulating block 4, and the top end of the screw rod 7 extends to the upper side of the L-shaped support rod 1 and is fixedly connected with the bottom of the knob 10;

the elastic self-clamping assembly comprises a T-shaped clamping rod 13 arranged on the right side of a rectangular tube 3, a ball 14 is nested at the left end of the T-shaped clamping rod 13, the ball 14 is in rolling contact with the right side of the rectangular tube 3, the right side of the T-shaped clamping rod 13 penetrates through a groove 12 and extends to the right side of an L-shaped support rod 1, a pull ring 16 is fixedly connected with the right end of the T-shaped clamping rod 13, an extension spring 15 in a stretching state is fixedly connected between the inner wall of the right side of the T-shaped clamping rod 13 and the inner wall of the left side of the groove 12, the extension spring 15 is movably sleeved on the T-shaped clamping rod 13, and the T-shaped clamping rod 13 is positioned above a clamping groove 17 and matched with the clamping groove 17. The use stability is improved, and the use requirement is met.

In the utility model, a first bearing is fixedly connected on the inner wall of the bottom of a rectangular groove 11, the top of an L-shaped support rod 1 and the inner wall of the top of the rectangular groove 11 are provided with the same first round hole, a second bearing is fixedly sleeved in the first round hole, the inner side of an inner ring of the second bearing and the inner side of an inner ring of the first bearing are fixedly connected with the outer side of a screw 7, the inner wall of the bottom of the rectangular groove 11 is provided with a rectangular hole in sliding connection with the outer side of a rectangular guide rod 9, the inner wall of the left side of a groove 12 is provided with a second round hole, the inner wall of the second round hole is in sliding connection with the outer side of a T-shaped clamping rod 13, and the outer side of a pressure regulating block 4 is in sliding contact with the inner wall of a rectangular pipe 3, so that the utility model can automatically lock and prevent the U-shaped presser foot 102 from falling when the U-shaped presser foot 102 is moved upwards, prevent the trouser legs from being blocked when a person places the trouser legs, can conveniently and can quickly flatten the bended trouser legs, and can conveniently and can quickly regulate the pressure on the trouser legs according to actual needs, the trouser legs of the trousers are suitable for being stably pressed flat for bending different hardness materials, so that the use stability is improved, and the use requirements are met.

The working principle is as follows: when the device is used, the push rod 6 is pushed upwards at first, the push rod 6 drives the rectangular tube 3 to slide upwards on the rectangular rod 2 and upwards compress the first spring 5, the rectangular tube 3 drives the U-shaped presser foot 102 and the clamping groove 17 to move upwards, the rectangular tube 3 slides upwards on the left side of the ball 14, when the clamping groove 17 moves upwards to be aligned with the T-shaped clamping rod 13, the elasticity of the stretching spring 15 in a stretching state drives the T-shaped clamping rod 13 to be clamped into the clamping groove 17 leftwards, the T-shaped clamping rod 13 limits the rectangular tube 3 through the clamping groove 17 at the moment, and further the U-shaped presser foot 102 can be prevented from falling down, so that the U-shaped presser foot 102 is automatically locked and prevented from falling down when the U-shaped presser foot 102 moves upwards to prevent shielding, so that a person can conveniently place bent trouser legs downwards, after the trouser legs are placed, the pull ring 16 rightwards to drive the T-shaped clamping rod 13 to be separated from the clamping groove 17 rightwards and stretch the stretching spring 15, the clamping is released, the elastic force of the first spring 5 in a compressed state drives the rectangular tube 3 to move back downwards, the rectangular tube 3 drives the U-shaped presser foot 102 to press the folded trouser legs to be subjected to edge locking downwards, and at the moment, personnel can adopt the sewing machine body 100 to carry out normal edge locking work, so that the folded trouser legs can be pressed conveniently and quickly;

when the trouser legs are too hard, the trouser legs cannot be pressed effectively at ordinary times, when pressure needs to be adjusted, the knob 10 is rotated in the forward direction to drive the screw rod 7 to rotate, the screw rod 7 can drive the nut 8 to move downwards in a rotating mode, the nut 8 drives the rectangular guide rod 9 to move downwards, the rectangular guide rod 9 drives the pressure adjusting block 4 to slide downwards in the rectangular pipe 3, the pressure adjusting block 4 compresses the first spring 5 downwards, the initial compression degree of the first spring 5 can be adjusted according to actual needs, and then downward tightening elastic force of the rectangular pipe 3 and the U-shaped presser foot 102 can be adjusted, so that downward pressure of the buckled trouser legs can be adjusted, the effect of stably pressing the buckled trouser legs is achieved, and the trouser legs can be stably pressed by adjusting the pressure.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A novel trouser leg hem sewing machine comprises a sewing machine body (100) and a hem locking needle (101) on the sewing machine body (100), wherein a U-shaped presser foot (102) is arranged on the outer side of the hem locking needle (101), and is characterized in that a pressure-adjustable hem pressing mechanism is fixedly installed on the left side inside the sewing machine body (100);

the pressure-adjustable edge pressing mechanism comprises an L-shaped support rod (1) fixedly connected to the left side inside a sewing machine body (100), a rectangular rod (2) is fixedly connected to the inner wall of the top of the L-shaped support rod (1), a rectangular tube (3) with the bottom of a blocking structure is sleeved on the rectangular rod (2) in a sliding mode, the bottom of the rectangular tube (3) is fixedly connected with the right side of the top of a U-shaped presser foot (102), a rectangular groove (11) is formed in the left side of the rectangular rod (2), a thread driving assembly is rotatably connected to the inner wall of the bottom of the rectangular groove (11), the bottom of the thread driving assembly extends into the rectangular tube (3) and is fixedly connected with a pressure adjusting block (4), a first spring (5) is fixedly connected between the bottom of the pressure adjusting block (4) and the inner wall of the bottom of the rectangular tube (3), and the top of the thread driving assembly extends to the upper portion of the L-shaped support rod (1) and is fixedly connected with a knob (10), the right side bottom fixedly connected with push rod (6) of rectangular pipe (3), draw-in groove (17) that are located push rod (6) top are seted up on the right side of rectangular pipe (3), the right side movable contact elasticity of rectangular pipe (3) is from calorie of subassembly, elasticity is from calorie of subassembly position in the top of draw-in groove (17) and cooperate with draw-in groove (17), the right side of L shape branch (1) is seted up flutedly (12), elasticity runs through recess (12) and extends to the right side of L shape branch (1) from the right side of calorie of subassembly.

2. The sewing machine for serging the trouser legs is characterized in that the thread driving component comprises a screw rod (7) which is rotatably connected to the inner wall of the bottom of the rectangular groove (11), a nut (8) is sleeved on the screw rod (7) in a threaded manner, a rectangular guide rod (9) is fixedly connected to the left side of the bottom of the nut (8), the bottom end of the rectangular guide rod (9) extends to the lower portion of the rectangular rod (2) and is fixedly connected with the top of the pressure regulating block (4), and the top end of the screw rod (7) extends to the upper portion of the L-shaped support rod (1) and is fixedly connected with the bottom of the knob (10).

3. The novel trouser leg serging sewing machine according to claim 1, wherein the elastic self-clamping assembly comprises a T-shaped clamping rod (13) arranged on the right side of the rectangular tube (3), a ball (14) is nested at the left end of the T-shaped clamping rod (13), the ball (14) is in rolling contact with the right side of the rectangular tube (3), the right side of the T-shaped clamping rod (13) penetrates through the groove (12) and extends to the right side of the L-shaped supporting rod (1) and is fixedly connected with a pull ring (16), a tension spring (15) in a tension state is fixedly connected between the inner wall of the right side of the T-shaped clamping rod (13) and the inner wall of the left side of the groove (12), the tension spring (15) is movably sleeved on the T-shaped clamping rod (13), and the T-shaped clamping rod (13) is located above the clamping groove (17) and is matched with the clamping groove (17).

4. The sewing machine for serging pants legs as claimed in claim 2, wherein the inner wall of the bottom of the rectangular groove (11) is fixedly connected with a first bearing, the top of the L-shaped strut (1) and the inner wall of the top of the rectangular groove (11) are provided with a first round hole, a second bearing is fixedly sleeved in the first round hole, and the inner side of the inner ring of the second bearing and the inner side of the inner ring of the first bearing are fixedly connected with the outer side of the screw (7).

5. The sewing machine for serging trouser legs according to claim 2, characterized in that the inner wall of the bottom of the rectangular groove (11) is provided with a rectangular hole which is connected with the outer side of the rectangular guide rod (9) in a sliding way.

6. The sewing machine for serging trouser legs according to claim 3, wherein a second round hole is opened on the left inner wall of the groove (12), and the inner wall of the second round hole is connected with the outer side of the T-shaped clamping rod (13) in a sliding way.

7. The sewing machine for serging pants legs as claimed in claim 1, wherein the outer side of said pressure-regulating block (4) is in sliding contact with the inner wall of the rectangular tube (3).