A sewing machine thread break detection assembly

Abstract

The utility model discloses a sewing machine thread breakage detection subassembly relates to sewing machine accessory technical field, the utility model discloses a pressure wheel seat, winding wheel and wheel seat cover, winding wheel rotation is installed between pressure wheel seat, and the upper end opening of wheel seat cover, and pressure wheel seat vertical sliding sleeve joint is in wheel seat cover, and the lower end fixedly connected with pressure spring of pressure wheel seat, and the lower end fixed sleeve of pressure spring has spring cover, and the lower end surface fixed mounting of spring cover has pressure sensor, and pressure sensor is connected with warning light through data line. The utility model discloses through the line winding through winding wheel, and winding wheel provides the tension to the line under the thrust of pressure spring, and the pressure spring provides the pressure to pressure sensor simultaneously, when appearing thread breakage, the line on winding wheel no longer provides the downward pressure for winding wheel, makes the pressure that pressure sensor feels change, and generates potential signal and passes to warning light, thereby making warning light light alarm, realizes the technical effect of real -time detection thread breakage situation and timely alarm.

Description

Technical Field

[0001] This utility model belongs to the technical field of sewing machine accessories, and in particular relates to a sewing machine thread breakage detection component. Background Technology

[0002] In today's highly automated sewing production field, specific scenarios such as car seat sewing and airbag sewing are extremely automated, with human intervention strictly controlled to a very small extent. This highly automated production model aims to improve production efficiency, reduce labor costs, and ensure the stability and consistency of product quality.

[0003] In automated sewing operations, the continuity of the sewing thread is a key factor in ensuring smooth production. If a thread breaks, the sewing process will be forced to stop, inevitably leaving unsewn sections on the fabric. This not only compromises the integrity of the product but may also prevent subsequent processes from proceeding normally, severely impacting production schedules.

[0004] If broken threads are not detected and handled properly in a timely manner, the fabric is highly likely to be sewn into substandard or even unusable products. It's important to understand that complete and continuous stitches are fundamental to ensuring the durability of clothing and other products. Broken threads directly disrupt the continuity of the stitches, making the product prone to problems such as unraveling and tearing during use, thus seriously affecting the product's quality and lifespan. For products with extremely high safety and reliability requirements, such as car seats and airbags, quality problems caused by broken threads can pose serious safety hazards.

[0005] Currently, the traditional inspection method, which relies on operators constantly observing whether the sewing thread is broken, has significant limitations. This method is not only inefficient, but also prone to oversights due to the difficulty of maintaining high concentration for extended periods, making it impossible to accurately and promptly detect thread breaks. Missed detections can lead to a large number of defective or scrap products, resulting in economic losses for the company.

[0006] To address this issue, we provide a sewing machine thread breakage detection component to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a sewing machine thread breakage detection component. This component involves rotating a winding wheel within a pressure wheel seat, which is then vertically slidably fitted into a wheel seat sleeve. A pressure spring is fixedly connected to the lower end of the pressure wheel seat, and a pressure sensor is positioned at the lower end of the pressure spring. The thread is routed around the winding wheel, and the pressure sensor is connected to a warning light signal. Under the thrust of the pressure spring, the winding wheel provides tension to the thread, while the pressure spring simultaneously applies pressure to the pressure sensor. When a thread breakage occurs, the thread on the winding wheel no longer provides downward pressure, significantly reducing or eliminating the pressure sensed by the pressure sensor. This generates a potential signal, which is transmitted to the warning light, causing the warning light to illuminate and trigger an alarm. This achieves the technical effect of real-time detection of thread breakage and timely alarm.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model relates to a sewing machine thread breakage detection component, comprising a pressure wheel seat, a winding wheel, and a wheel seat sleeve. The pressure wheel seat is a U-shaped structure with an upward opening. The winding wheel is rotatably mounted between the pressure wheel seats. The upper end of the wheel seat sleeve is open. The pressure wheel seat is vertically slidably fitted inside the wheel seat sleeve. A pressure spring is fixedly connected to the lower end of the pressure wheel seat. A spring sleeve is fixedly fitted to the lower end of the pressure spring. A pressure sensor is fixedly mounted on the lower end face of the spring sleeve. The pressure sensor is connected to an alarm light via a data cable.

[0010] A further feature of this invention is that the lower end of the wheel seat sleeve is provided with a threaded sleeve, an adjusting stud is screwed into the threaded sleeve, a vertical sliding adapter plate is vertically slidably connected inside the wheel seat sleeve, the upper end of the adjusting stud is rotatably mounted on the lower end of the vertical sliding adapter plate, a pressure sensor is fixedly mounted on the lower end face of the vertical sliding adapter plate, and an adjusting knob is fixedly mounted on the lower end of the adjusting stud.

[0011] A further feature of this invention is that a wire groove is vertically opened through one side of the wheel seat sleeve, and the wire groove extends upward through the upper end face of the wheel seat sleeve, through which the data line connected to the side of the pressure sensor passes.

[0012] A further feature of this invention is that the wheel seat sleeve extends to both sides of the two sides parallel to the axis of the winding wheel, away from the wire groove, and is fixedly provided with mounting plates. The warning light is fixedly installed on the surface of one side of the mounting plate.

[0013] A further feature of this invention is that a groove is formed on the surface of the winding wheel, and the groove gradually narrows towards the end of the winding wheel.

[0014] A further feature of this invention is that side wheel seat plates are fixedly installed on both sides of the wheel seat sleeve parallel to the axis of the winding wheel. Two vertical side plates are fixedly installed on the upper end of the side wheel seat plate away from the wheel seat sleeve. A winding wheel is rotatably installed on the two vertical side plates. The axis of the winding wheel between the two vertical side plates is parallel to the axis of the winding wheel at the upper end of the wheel seat sleeve.

[0015] A further feature of this invention is that the side wheel seat plate has a through-line notch between the two vertical side plates.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model involves rotating a winding wheel inside a pressure wheel seat, vertically sliding the pressure wheel seat within a wheel seat sleeve, fixing a pressure spring to the lower end of the pressure wheel seat, and placing a pressure sensor at the lower end of the pressure spring. When the wire is wound around the winding wheel, the winding wheel provides tension to the wire under the thrust of the pressure spring, while the pressure spring provides pressure to the pressure sensor. When a wire breakage occurs, the wire on the winding wheel no longer provides downward pressure to the winding wheel, causing a change in the pressure sensed by the pressure sensor, thereby achieving real-time detection of wire breakage.

[0018] 2. This utility model connects a pressure sensor to a warning light signal. When a disconnection occurs, the pressure sensor transmits the pressure change to the warning light in real time, causing the warning light to illuminate and trigger an alarm, thereby achieving the technical effect of timely alarm notification. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a sewing machine thread breakage detection component.

[0021] Figure 2 This is a schematic diagram of the structure of the wheel seat sleeve and the pressure sensor.

[0022] Figure 3 This is an exploded view of the wheel seat sleeve and the pressure wheel seat.

[0023] Figure 4 This is a schematic diagram showing the installation of the warning light and the mounting plate.

[0024] Figure 5 This is a schematic diagram of the installation of the side wheel seat plate and the wheel seat sleeve.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Pressure wheel seat, 101-Pressure spring, 101a-Spring sleeve, 101b-Pressure sensor, 101c-Warning light, 2-Winding wheel, 201-Wire groove, 3-Wheel seat sleeve, 301-Threaded sleeve, 301a-Adjusting stud, 301a-1-Adjusting knob, 301b-Vertical sliding adapter plate, 302-Wire groove, 303-Mounting plate, 304-Side wheel seat plate, 304a-Vertical side plate, 304b-Wire guide notch. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0028] Please see Figures 1 to 4 This utility model is a sewing machine thread breakage detection component, including a pressure wheel seat 1, a winding wheel 2, and a wheel seat sleeve 3. The winding wheel 2 is rotatably installed in the pressure wheel seat 1, and the pressure wheel seat 1 is vertically slidably sleeved in the wheel seat sleeve 3. A pressure spring 101 is fixedly connected to the lower end of the pressure wheel seat 1, and a pressure sensor 101b is set at the lower end of the pressure spring 101. The thread is passed around the winding wheel 2, and the pressure sensor 101b is connected to the warning light 101c. The winding wheel 2 provides tension to the thread under the thrust of the pressure spring 101, while the pressure spring 101 provides pressure to the pressure sensor 101b. When a thread breakage occurs, the thread on the winding wheel 2 no longer provides downward pressure to the winding wheel 2, causing a change in the pressure sensed by the pressure sensor 101b, generating a potential signal, and transmitting it to the warning light 101c, thereby causing the warning light 101c to light up and alarm, achieving the technical effect of real-time detection of thread breakage and timely alarm.

[0029] Specifically, the pressure wheel seat 1 is a U-shaped structure with the opening facing upwards. The winding wheel 2 is rotatably installed between the pressure wheel seats 1. The upper end of the wheel seat sleeve 3 is open. The pressure wheel seat 1 is vertically slidably fitted inside the wheel seat sleeve 3. The lower end of the pressure wheel seat 1 is fixedly connected to a pressure spring 101. The lower end of the pressure spring 101 is fixedly fitted with a spring sleeve 101a. The lower end face of the spring sleeve 101a is fixedly installed with a pressure sensor 101b. The pressure sensor 101b is connected to a warning light 101c via a data cable.

[0030] Furthermore, the lower end of the wheel seat sleeve 3 is provided with a threaded sleeve 301, and an adjusting stud 301a is screwed into the threaded sleeve 301. A vertical sliding adapter plate 301b is vertically slidably sleeved inside the wheel seat sleeve 3. The upper end of the adjusting stud 301a is rotatably mounted on the lower end of the vertical sliding adapter plate 301b. The pressure sensor 101b is fixedly mounted on the lower end face of the vertical sliding adapter plate 301b. An adjusting knob 301a-1 is fixedly provided at the lower end of the adjusting stud 301a. Rotating the adjusting knob 301a-1 causes the vertical sliding adapter plate 301b to slide vertically inside the wheel seat sleeve 3, thereby adjusting the pressure on the pressure spring 101 and thus adjusting the tension on the line.

[0031] Furthermore, a wire groove 302 is vertically opened on one side of the wheel seat sleeve 3, and the wire groove 302 extends upward through the upper end face of the wheel seat sleeve 3. The data line connected to the side of the pressure sensor 101b passes through the wire groove 302.

[0032] Furthermore, the wheel seat sleeve 3 is parallel to the axis of the winding wheel 2 and has mounting plates 303 fixedly installed on both sides of the side away from the wire groove 302. The warning light 101c is fixedly installed on the surface of the mounting plate 303 on one side. The mounting plate 303 is used to fix the wheel seat sleeve 3 to the side of the sewing machine.

[0033] The operation process in this embodiment is as follows:

[0034] The mounting plate 303 is fixedly installed on the side of the sewing machine. The thread is passed around the winding wheel 2, and the adjustment knob 301a-1 is rotated to make the vertical sliding adapter plate 301b slide vertically within the wheel seat sleeve 3. This adjusts the pressure on the pressure spring 101, thereby adjusting the tension of the thread. The winding wheel 2 provides tension to the thread under the thrust of the pressure spring 101. At the same time, the pressure spring 101 provides pressure to the pressure sensor 101b. When a thread breakage occurs, the thread on the winding wheel 2 no longer provides downward pressure to the winding wheel 2, causing a change in the pressure sensed by the pressure sensor 101b. This generates a potential signal and transmits it to the warning light 101c, causing the warning light 101c to light up and alarm. This achieves the technical effect of real-time detection of thread breakage and timely alarm. Example 2

[0035] Please see Figures 1 to 5 Based on embodiment 1, side wheel seat plates 304 are provided on both sides of the wheel seat sleeve 3, and two vertical side plates 304a are fixed at the upper end of the side wheel seat plates 304. The winding wheel 2 is rotatably installed between the two vertical side plates 304a. The line first passes around the winding wheel 2 on one side wheel seat plate 304, then passes around the winding wheel 2 on the pressure wheel seat 1, and finally passes around the winding wheel 2 on the other side wheel seat plate 304, so that each winding wheel 2 provides tension for the line.

[0036] Specifically, a groove 201 is provided on the surface of the winding wheel 2, and the groove 201 gradually narrows at the end that approaches the winding wheel 2.

[0037] Furthermore, side wheel seat plates 304 are fixedly installed on both sides of the wheel seat sleeve 3 parallel to the wheel axis of the winding wheel 2. Two vertical side plates 304a are fixedly installed on the upper end of the side wheel seat plate 304 away from the wheel seat sleeve 3. A winding wheel 2 is rotatably installed on the two vertical side plates 304a. The wheel axis of the winding wheel 2 between the two vertical side plates 304a is parallel to the wheel axis of the winding wheel 2 at the upper end of the wheel seat sleeve 3.

[0038] Furthermore, the side wheel seat plate 304 has a through notch 304b between the two vertical side plates 304a for passing the wire through each winding wheel 2.

[0039] The operation process in this embodiment is as follows:

[0040] The wire is first passed around the winding wheel 2 on one side wheel seat plate 304, then around the winding wheel 2 on the pressure wheel seat 1, and finally around the winding wheel 2 on the other side wheel seat plate 304, so that each winding wheel 2 provides tension to the wire, thereby making the wire taut on the winding wheel 2 on the pressure wheel seat 1 and providing pressure to the pressure spring 101, so that the pressure sensor 101b detects the pressure.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A sewing machine thread breakage detection assembly, comprising a pressure wheel seat (1), a winding wheel (2), and a wheel seat sleeve (3), characterized in that: The pressure wheel seat (1) is a U-shaped structure with the opening facing upwards. The winding wheel (2) is rotatably installed between the pressure wheel seats (1). The upper end of the wheel seat sleeve (3) is open. The pressure wheel seat (1) is vertically slidably sleeved inside the wheel seat sleeve (3). The lower end of the pressure wheel seat (1) is fixedly connected to a pressure spring (101). The lower end of the pressure spring (101) is fixedly sleeved with a spring sleeve (101a). The lower end face of the spring sleeve (101a) is fixedly installed with a pressure sensor (101b). The pressure sensor (101b) is connected to a warning light (101c) through a data cable.

2. The sewing machine thread breakage detection component according to claim 1, characterized in that: The lower end of the wheel seat sleeve (3) is provided with a threaded sleeve (301), and an adjusting stud (301a) is screwed into the threaded sleeve (301). A vertical sliding adapter plate (301b) is vertically slidably connected inside the wheel seat sleeve (3). The upper end of the adjusting stud (301a) is rotatably installed at the lower end of the vertical sliding adapter plate (301b). The pressure sensor (101b) is fixedly installed on the lower end face of the vertical sliding adapter plate (301b). An adjusting knob (301a-1) is fixedly provided at the lower end of the adjusting stud (301a).

3. A sewing machine thread breakage detection component according to claim 2, characterized in that: A wire groove (302) is vertically opened on one side of the wheel seat sleeve (3), and the wire groove (302) extends upward through the upper end face of the wheel seat sleeve (3). The data line connected to the side of the pressure sensor (101b) passes through the wire groove (302).

4. A sewing machine thread breakage detection component according to claim 3, characterized in that: The wheel seat sleeve (3) extends to both sides of the two sides parallel to the axis of the winding wheel (2) and is fixed with mounting plates (303) at one end away from the wire groove (302). The warning light (101c) is fixedly installed on the plate surface of the mounting plate (303) on one side.

5. A sewing machine thread breakage detection component according to claim 1, characterized in that: The winding wheel (2) has a groove (201) on its surface, and the groove (201) gradually narrows towards the end of the winding wheel (2).

6. A sewing machine thread breakage detection component according to claim 5, characterized in that: Side wheel seat plates (304) are fixedly installed on both sides of the wheel seat sleeve (3) parallel to the wheel axis of the winding wheel (2). Two vertical side plates (304a) are fixedly installed on the upper end of the side wheel seat plate (304) away from the wheel seat sleeve (3). A winding wheel (2) is rotatably installed on the two vertical side plates (304a). The wheel axis of the winding wheel (2) between the two vertical side plates (304a) is parallel to the wheel axis of the winding wheel (2) at the upper end of the wheel seat sleeve (3).

7. A sewing machine thread breakage detection component according to claim 6, characterized in that: The side wheel seat plate (304) has a through notch (304b) between the two vertical side plates (304a).

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