CN216688607U

CN216688607U - Bottom line allowance detection mechanism

Info

Publication number: CN216688607U
Application number: CN202123163564.1U
Authority: CN
Inventors: 胡小滨
Original assignee: Supreme Intelligent Technology Co Ltd
Current assignee: Supreme Intelligent Technology Co Ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-06-07
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a bottom thread allowance detection mechanism which comprises a bobbin case mounting seat positioned on a sewing machine base, wherein an emission sensor and a receiving sensor are respectively arranged on two sides of the bobbin case mounting seat, and a light beam signal emitted to the receiving sensor by the emission sensor is tangent to the outer wall of a bobbin shaft; the side wall of the bobbin case mounting seat is provided with a first through hole and a second through hole through which the light beam signal passes. The bottom thread allowance detection mechanism directly detects the bottom thread on the shuttle peg by utilizing the photoelectric correlation sensor, the shuttle peg can use a standard shuttle peg, a light reflecting surface and a light transmitting groove are not required to be arranged, and the bottom thread allowance detection mechanism has the advantages of intuition and convenience in detection.

Description

Bottom line allowance detection mechanism

Technical Field

The utility model relates to the field of industrial sewing machines, in particular to a bottom thread allowance detection mechanism for a sewing machine.

Background

The utility model patent No. 201910511747.6 discloses a bottom thread residual amount detection device of a sewing machine and a bottom thread residual amount control method of the sewing machine using the detection device. The detection device comprises a bobbin, a bobbin case, a rotating shuttle sleeved on the bobbin case and a sensor with a transmitter and a receiver, wherein a light reflecting surface is arranged on the inner side surface of a first blocking shoulder of the bobbin, a light transmission groove is arranged on a second blocking shoulder, the light transmission groove extends to the outer edge of the second blocking shoulder from the outer peripheral surface of a winding post along the radial direction of the winding post, a light transmission hole is arranged on the bobbin case, and the second blocking shoulder is arranged opposite to the bobbin case; the sensor is connected with the controller that is equipped with the display screen, and the signal that covers the light trap on the extending direction of light trap is launched to the transmitter, and the signal can the level pass through light trap and reach the reflection of light face to return to the receiver through former way behind the reflection of light face reflection, the sensor generates feedback signal and carries for the controller, and the controller generates bottom line surplus information and shows on the display screen, can real-time detection and show the bottom line surplus. But this technical scheme needs keep off the shoulder at the first of shuttle peg and set up the reflection of light face, and the second keeps off the shoulder and sets up light-permeable groove, consequently needs reequip the shuttle peg, can't use standard shuttle peg.

Disclosure of Invention

The utility model provides a bobbin thread allowance detection mechanism aiming at the current situation of the prior art, and bobbin thread allowance detection can be realized without modifying a shuttle peg.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a bobbin thread allowance detection mechanism comprises a bobbin case mounting seat positioned on a sewing machine base, wherein an emission sensor and a receiving sensor are respectively arranged on two sides of the bobbin case mounting seat, and a light beam signal emitted to the receiving sensor by the emission sensor is tangent to the outer wall of a bobbin shaft; the side wall of the bobbin case mounting seat is provided with a first through hole and a second through hole which pass through the light beam signal.

In order to optimize the technical scheme, the utility model also comprises the following improved technical scheme.

The bobbin arranged in the bobbin case mounting seat is sleeved with a third through hole and a fourth through hole through which optical column signals pass.

Compared with the prior art, the bobbin thread allowance detection mechanism provided by the utility model has the advantages that the bobbin thread allowance detection mechanism directly detects the bobbin thread on the bobbin by using the photoelectric correlation sensor, the bobbin can use a standard bobbin, a light reflecting surface and a light transmitting groove are not required to be arranged, and the detection is visual and convenient.

Drawings

Fig. 1 is a schematic diagram of the working state of the embodiment of the present invention.

Fig. 2 is a schematic perspective view of the bobbin thread residue detection mechanism.

Fig. 3 is a perspective view of the bobbin case of fig. 2.

Fig. 4 is a schematic cross-sectional structure of fig. 2.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 4 are schematic structural views of the present invention.

Wherein the reference numerals are: the sewing machine comprises a sewing machine base 1, a support 11, a bobbin case mounting base 2, a first through hole 21, a second through hole 22, an emission sensor 3, a light beam signal 31, a receiving sensor 4, a bobbin case 5, a third through hole 51, a fourth through hole 52, a bobbin case shaft 53 and a bobbin shaft 6.

The utility model relates to a bottom thread allowance detection mechanism, which comprises a bobbin case mounting seat 2 positioned on a sewing machine base 1. And the two sides of the bobbin case mounting seat 2 are respectively provided with a transmitting sensor 3 and a receiving sensor 4. The transmitting sensor 3 and the receiving sensor 4 are respectively fixedly installed on the sewing machine base 1 through corresponding brackets 11.

The light beam signal 31 emitted by the emitting sensor 3 towards the receiving sensor 4 is tangential to the outer wall of the bobbin shaft 6. The side wall of the bobbin case mounting seat 2 is provided with a first through hole 21 and a second through hole 22 for passing the light beam signal 31.

The bobbin case 5 installed in the bobbin case mounting base 2 is formed with a third through hole 51 and a fourth through hole 52 through which the optical beam signal 31 passes. As shown in fig. 4, the bobbin is mounted on the bobbin case shaft 53 via the bobbin shaft 6. The beam signal 31 is typically 0.5mm in diameter, and the beam signal 31 is made tangent to the bobbin shaft 6 by adjusting the mounting positions of the transmitting sensor 3 and the receiving sensor 4.

The receiving sensor 4 sends a sensing signal to the sewing machine control system. When the sewing machine starts to sew, the bobbin shaft 6 is wound with the bottom thread, and the bottom thread can block the light beam signal 31, so that the sewing control system judges that the bottom thread is enough, and the sewing machine can work normally.

When the bobbin shaft 6 is used less and less bottom thread is left on the bobbin shaft 6, the bottom thread can enable the light beam signal 31 to be received by the receiving sensor 4 once used, the sewing machine control system can immediately judge that the bottom thread runs out to stop sewing, and the phenomenon that the bottom thread runs off when the bottom thread is actually used to affect the sewing quality and cause the sewing material to be scrapped is avoided. Meanwhile, when the sewing control system is stopped due to the lack of the bobbin thread, the sewing control system can send out an alarm, so that an operator can replace the bobbin in time or replace the bobbin thread through an automatic bobbin replacing mechanism.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the utility model.

Claims

1. The utility model provides a bottom line surplus detection mechanism, is including being located bobbin case mount pad (2) on sewing machine base (1), characterized by: an emitting sensor (3) and a receiving sensor (4) are respectively arranged on two sides of the bobbin case mounting seat (2), and a light beam signal (31) emitted to the receiving sensor (4) by the emitting sensor (3) is tangential to the outer wall of the bobbin shaft (6); the side wall of the bobbin case mounting seat (2) is provided with a first through hole (21) and a second through hole (22) for the light beam signal (31) to pass through.

2. The bobbin thread residue detecting mechanism according to claim 1, wherein: and a bobbin sleeve (5) arranged in the bobbin case mounting seat (2) is provided with a third through hole (51) and a fourth through hole (52) for passing the light beam signal (31).