CN210140676U

CN210140676U - Device for correcting positions of machine needle and rotating shuttle

Info

Publication number: CN210140676U
Application number: CN201920326873.XU
Authority: CN
Inventors: 王华青; 陈杰
Original assignee: ZHEJIANG JIADAO SEWING MACHINE Co Ltd
Current assignee: ZHEJIANG JIADAO SEWING MACHINE Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-03-13
Anticipated expiration: 2029-03-14

Abstract

The utility model relates to the technical field of sewing machines, in particular to a device for checking the positions of a machine needle and a rotating shuttle, which comprises a camera for checking the space between the machine needle and the rotating shuttle, wherein the camera is aligned with the position between the machine needle and the rotating shuttle, the camera is connected with a display screen through a signal line, and transmits the real-time images of the rotating shuttle and the machine needle to the display screen for amplifying and displaying, the utility model judges whether the position between the rotating shuttle and the machine needle reaches the requirement or not by directly observing with naked eyes or by hand feeling, and changes into the method that the positioning of a needle bar clamp and the multiple amplification of the picture between the rotating shuttle and the machine needle are carried out by the camera, the picture is transmitted and displayed on the display screen through the signal line and compared with a standard line preset on the display screen, so that the staff can more easily and clearly observe the position distance relationship between the rotating shuttle and the rotating shuttle in the actual installation process, the visual fatigue of staff can be reduced, the quality of the machine is improved, and the visual fatigue testing machine has the advantages of convenience in installation and high precision.

Description

Device for correcting positions of machine needle and rotating shuttle

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a device for checking the positions of a needle and a rotating shuttle.

Background

During the installation of the rotating shuttle and the machine needle, the position requirements of the rotating shuttle and the machine needle are very high, the position and the distance adjustment of the rotating shuttle and the machine needle of the sewing machine are a very important process, the process affects the quality of the flat joint, and the flat joint machine which is not adjusted in place can have the situations of wire jumping, wire breakage, abnormal abrasion of the rotating shuttle tip and even needle breakage.

The existing adjusting mode is that workers directly observe the positions of a machine needle and a rotating shuttle point by visual observation, so that deviation is easily generated, and the actual workers can judge whether the positions between the machine needle and the rotating shuttle point are in place or not by hand feeling, so that the requirement of debugging that the clearance between the rotating shuttle point and the machine needle is 0.03mm-0.05mm cannot be met, therefore, the visual fatigue strength of the workers is huge, and the quality of a machine cannot be guaranteed.

Disclosure of Invention

The utility model aims at providing a device for proofreading eedle and rotating shuttle position, through highly fixing a position, the camera enlargies the picture to the needle bar, through position and the clearance of observing eedle and rotating shuttle in the display screen, compare with it on the display screen standard width line, solve the not high problem of position control accuracy.

The purpose of the utility model is realized like this: a device for checking the positions of a machine needle and a rotating shuttle comprises a fixing seat arranged on a bottom plate of a sewing machine and a camera used for checking the distance between the machine needle and the rotating shuttle, wherein the camera is arranged on the lower end face of the fixing seat, the fixing seat is fixed on the bottom plate through a positioning device, so that the camera is right opposite to the position between the machine needle and the rotating shuttle, the camera is connected with a display screen through a signal line, real-time images of the rotating shuttle and the machine needle are transmitted to the display screen by the camera and are amplified and displayed, the position of image display and the gap are compared through a standard width line preset on the display screen, and the requirement of checking the gap by 0.03-0.05mm is further met.

Preferably, the positioning device is a positioning sheet, the two sides of the fixed seat are respectively provided with the positioning sheet, and the width between the two positioning sheets is not less than the width of the presser foot of the sewing machine.

Preferably, an inclined through groove is formed in the middle of the front end of the fixing seat, the camera is mounted in the through groove, and a scale with different thicknesses is arranged on the display screen.

Preferably, magnet is installed to the bottom of fixing base, the fixing base passes through magnet and adsorbs on the bottom plate.

Preferably, the upper surface of the front end of the fixed seat is formed with an abutting surface, and the abutting surface is used for abutting the front end of the presser foot of the sewing machine.

Preferably, a light supplement lamp is installed on one side of the fixing seat.

Preferably, still including chock and the locating piece that is used for fixing a position the needle bar position, a pot head of chock is established in the periphery of needle bar, set up the locating hole that supplies the needle bar to pass on the locating piece, the through-hole has been seted up to one side of locating hole, and the through-hole internal rotation is equipped with the screw.

Preferably, the thickness of the chock is 2.2 mm-2.4 mm, the thickness of the chock in a computer car is 2.2mm, and the thickness of the chock in a synchronous car is 2.4 mm.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model relates to a whether position from original with naked eye direct observation or rely on feeling to judge between rotating shuttle and the eedle reaches the requirement, it enlargies to carry out the multiple through using the picture of camera between with rotating shuttle and the eedle, show on the display screen through signal line transmission, compare with the standard line of setting for on the screen, can make the staff clear observation more easily reach position distance relation between the two, in the installation of reality, can reduce staff's visual fatigue, improve the quality of machine, and the device has the advantages of simple installation, and the precision is high.

2. The utility model relates to a whether position from original with naked eye direct observation or rely on feeling judges between rotating shuttle and the eedle reaches the requirement, changes into the mounting height through using the chock to injecture the eedle, has simple to operate's advantage.

Drawings

FIG. 1 is a schematic view of a sewing machine.

Fig. 2 is a schematic structural view of the present invention when it is applied to a sewing machine.

Fig. 3 is a schematic view of the position relationship between the rotating shuttle and the needle according to the present invention.

Fig. 4 is an exploded view of the camera, the fixing base and the spacer.

Fig. 5 is a schematic structural view of the needle bar positioning device.

Reference numerals: 1-a camera; 2-a fixed seat; 3-a needle; 4-rotating shuttle; 5-a display screen; 6-positioning plate; 7-presser foot of sewing machine; 8-through grooves; 9-a scale; 10-a magnet; 11-a base plate; 12-an abutment face; 13-a light supplement lamp; 14-a plug; 15-positioning blocks; 16-positioning holes; 17-a through hole; 18-a screw; 19-needle bar.

Detailed Description

The following describes the present invention in further detail with reference to fig. 1-5.

A device for calibrating the position of a needle and a rotating shuttle.

As shown in fig. 1, in the sewing machine, there are several components of the needle bar 19, the needle 3, the rotary hook 4, the sewing machine presser foot 7 and the base plate 11, and the working principle of the sewing machine is well known and the positional relationship between the respective components is clearly understood by those skilled in the art, so that the overall structure of the sewing machine will not be described in detail herein, but the following explanation will be made on the basis of the knowledge of the above known components.

Looking specifically at fig. 2, the utility model discloses a two proofreading devices for proofreading the needle bar positioner of 3 vertical distances of eedle and being used for proofreading the camera positioner of 3 lateral distances of eedle, wherein, needle bar positioner includes chock 14, locating piece 15 and screw 18.

Specifically, see fig. 3, wherein camera positioner includes fixing base 2, magnet 10, spacer 6, display screen 5, light filling lamp 13 and camera 1, and the camera adopts 100W pixel, the short distance endoscope camera of focus 5mm-50 mm.

With reference to fig. 2, 3 and 4, an oblique through groove 8 is formed in the middle of the front end of a fixing seat 2, the camera 1 is installed in the through groove 8, positioning pieces 6 are installed on two sides of the fixing seat 2, the width between the two positioning pieces 6 is not smaller than the width of a sewing machine presser foot 7, the two positioning pieces 6 of the fixing seat 2 are attached to the outer side of the presser foot, the fixing seat 2 is placed in the presser foot, the fixing seat 2 is adsorbed on a bottom plate 11 through a magnet 10, even if the fixing seat is loosened, the fixing seat cannot be easily moved, an abutting surface 12 is formed on the upper surface of the front end of the fixing seat 2, when the fixing seat 2 is moved towards the sewing machine presser foot 7 all the time, the sewing machine presser foot 7 abuts against the abutting surface 12, the camera 2 and the machine needle 3 are at the same axial position at the moment, the most standard position relation between the machine needle 3 and the rotating shuttle 4 can be shot, still install light filling lamp 13 in one side of fixing base 2, can compensate the not enough problem of inside optic fibre of sewing machine, it is brighter and more clear to make the picture, be favorable to the installer to observe, be provided with scale 9 that the thickness is different on display screen 5, the staff contrasts with the line that corresponds standard width through the clearance distance with eedle 3 and rotating shuttle 4, can be with very easy resolution, whether the clearance between the two reaches industry standard, compare direct with the inside eedle 3 of naked eye observation sewing machine and rotating shuttle 4, the picture is through the enlargements of 10 times or even more, obviously have very big difference, to the staff, visual fatigue has been reduced, it is more convenient to install, the quality of machine improves by a wide margin.

The design of the standard ruler in the screen can be realized by using a red marking on Camera Measurey software, and the standard ruler is a skill which can be realized by a person skilled in the art without creative labor.

Specifically referring to fig. 5, one end of the stopper 14 is provided with a through hole, and the stopper can be sleeved on the periphery of the needle rod 19 through the through hole, the positioning block 15 is provided with a positioning hole 16 for the needle rod 19 to pass through, one side of the positioning hole 16 is provided with a through hole 17, a screw 18 is screwed in the through hole 17, and the fastening degree between the positioning block 15 and the needle rod 19 can be adjusted by adjusting the front and rear positions of the screw 18 in the through hole 17.

The specific proofreading working process of the scheme is as follows:

step 1: firstly, shaking the needle rod 19 to the lowest point, sleeving one end of a chock 14 with the thickness of 2.2mm on the periphery of the needle rod 19, and moving upwards until the top of a machine head is clamped;

step 2: then, one side of the positioning block 15 penetrates through the needle rod 19 and moves upwards until the positioning block abuts against the stopper 14, and then the screw 18 is screwed down to fix the positioning block 15 on the needle rod 19;

and step 3: the plug block 14 is taken down, the hand wheel is reversed, the positioning block 15 on the needle rod 19 moves upwards until the top of the machine head is clamped, and then the hand wheel stops rotating;

and 4, step 4: the fixing seat 2 is placed on a table top of a bottom plate 11, the two positioning pieces 6 position the mounting positions of the left side and the right side of the fixing seat 2 according to the width of the two sides of the presser foot, the front end point of the presser foot abuts against the mounting positions of the front side and the rear side of the fixing seat 2 positioned on the abutting surface 12, so that the fixing seat 2 is moved into the presser foot, the camera 1 at the moment can monitor the picture of the position between the needle 3 and the rotating shuttle 4, and the picture is amplified by 10 times and then transmitted to a display screen 5;

and 5: the staff directly observes the real-time picture on the display screen 5, according to the industry standard: the actual gap between the rotating shuttle 4 and the machine needle 3 is 0.03mm-0.05mm, and according to the difference of 10 times between the picture displayed by the display screen and the actual picture, scales 9 with different corresponding times of thickness are set on the display screen 5, namely the width of the marked line to be displayed on the display screen 5 is 0.3m-0.5m, and the width is compared with the distance between the rotating shuttle 4 and the machine needle 3 on the display screen 5 for debugging;

step 6: after debugging is finished, screws are screwed for fixing, the mounting of the machine needle rotating shuttle is finished, the picture is enlarged by 10 times, namely, the mounting precision is improved by 10 times, the quality of a machine is greatly improved, and meanwhile, the operation requirement on workers is reduced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The device for correcting the positions of the machine needle and the rotating shuttle is characterized by comprising a fixing seat (2) arranged on a bottom plate (11) of a sewing machine and a camera (1) used for correcting the distance between the machine needle (3) and the rotating shuttle (4), wherein the camera (1) is installed on the lower end face of the fixing seat (2), the fixing seat (2) is fixed on the bottom plate (11) through a positioning device, so that the camera (1) is right opposite to the position between the machine needle (3) and the rotating shuttle (4), the camera (1) is connected with a display screen (5) through a signal line, and the camera (1) transmits real-time images of the rotating shuttle (4) and the machine needle (3) to the display screen (5) and amplifies and displays the real-time images.

2. The apparatus for aligning a needle and a rotary shuttle of claim 1 wherein: the positioning device is a positioning sheet (6), the positioning sheets (6) are respectively installed on two sides of the fixed seat (2), and the width between the two positioning sheets (6) is not less than the width of the presser foot (7) of the sewing machine.

3. The apparatus for aligning a needle and a rotary shuttle of claim 1 wherein: slant logical groove (8) have been seted up at the middle part of fixing base (2) front end, lead to install in groove (8) camera (1), be provided with scale (9) that thickness is different on display screen (5).

4. The apparatus for aligning a needle and a rotary shuttle of claim 1 wherein: magnet (10) are installed to the bottom of fixing base (2), fixing base (2) pass through magnet (10) and adsorb on bottom plate (11).

5. The apparatus for aligning a needle and a rotary shuttle of claim 1 wherein: the upper surface of the front end of the fixed seat (2) is formed with a propping surface (12), and the propping surface (12) is used for propping the front end of the presser foot (7) of the sewing machine.

6. The apparatus for aligning a needle and a rotary shuttle of claim 1 wherein: and a light supplement lamp (13) is installed on one side of the fixed seat (2).

7. The apparatus for aligning a needle and a rotary shuttle of claim 1 wherein: still including chock (14) and locating piece (15) that are used for fixing a position the needle bar position, the periphery of needle bar (19) is established to a pot head of chock (14), set up locating hole (16) that supply needle bar (19) to pass on locating piece (15), through-hole (17) have been seted up to one side of locating hole (16), and through-hole (17) internal rotation is equipped with screw (18).

8. An apparatus for calibrating a needle and shuttle position according to claim 7 wherein: the thickness of the chock block (14) is 2.2 mm-2.4 mm.