A tufting machine that prevents yarn breakage

Abstract

The utility model discloses a kind of tufting machines of preventing broken yarn, including tufting machine body, automatic stop device is equipped on the tufting machine body, the automatic stop device includes pressure sensor, the pressure sensor is arranged between yarn stand and roller;Yarn is sequentially through pressure sensor and roller from yarn stand, the utility model provides a kind of tufting machines of preventing broken yarn when yarn is hung on yarn stand in time stop.

Description

Technical Field

[0001] This utility model relates to the field of tufting machine technology, and in particular to a tufting machine that prevents yarn breakage. Background Technology

[0002] Tufted carpets are machine-made carpets that use a needle-operated machine to plant pile onto a chemical fiber fabric base, forming a loop pile or cut pile surface. The roller, as the core component of the tufting machine, grips the yarn through a pair of upper and lower rollers, achieving drafting and directly affecting yarn uniformity.

[0003] According to existing technology, if the yarn gets caught on the yarn frame during the roller drafting process, the yarn is easily broken, which will cause production stoppage, greatly affect production, and result in poor reliability. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a tufting machine that prevents yarn breakage by stopping the machine in time when the yarn gets caught on the yarn rack.

[0005] To achieve the above objectives, the technical solution of this utility model is: a tufting machine for preventing yarn breakage, comprising a tufting machine body,

[0006] The tufting machine body is equipped with an automatic stop device, which includes a pressure sensor located between the yarn frame and the rollers.

[0007] The yarn passes sequentially from the yarn frame through the pressure sensor and the roller.

[0008] With the above structure, this utility model has the following advantages compared with the prior art: an automatic stop device is provided between the roller and the yarn frame. The automatic stop device includes a pressure sensor. The yarn passes through the pressure sensor and then through the roller for drafting after coming out of the yarn frame. When the yarn gets caught on the yarn frame, the yarn will apply a certain pressure to the pressure sensor. The pressure sensor can detect the pressure data and send an electrical signal to the tufting machine body through a wire, thereby stopping the tufting machine body from working. In this way, the machine can be stopped in time when the yarn gets caught on the yarn frame.

[0009] Preferably, the automatic shutdown device also includes a buzzer with an alarm light. When the pressure sensor sends an electrical signal to stop the tufting machine, the buzzer can also receive the electrical signal through the wire and emit an alarm sound after receiving the signal. This serves to automatically alarm and promptly remind the staff, thereby increasing production efficiency. The alarm light can also sound the alarm along with the buzzer, making it easier for staff to detect when yarn is caught on the yarn rack.

[0010] Preferably, the tufting machine body is provided with a mounting base, the automatic stop device is detachably connected to the mounting base, and the roller is provided on the tufting machine body and located below the mounting base, so as to facilitate fixing the automatic stop device to the mounting base.

[0011] Preferably, the mounting base has a mounting groove on its surface, and the pressure sensor is detachably connected to the mounting groove for easy installation and removal.

[0012] Preferably, the mounting groove extends through both sides of the mounting base along its length, and the pressure sensor is slidably fitted within the mounting groove, resulting in a simple structure that is easy to install and disassemble.

[0013] Preferably, the pressure sensor is a piezoelectric thin film sensor, which is extremely durable and can withstand millions of bends and vibrations.

[0014] Preferably, the mounting base is provided with a first limiting rod on one side for upper limit positioning of the yarn. The yarn passes sequentially from the yarn frame under the first limiting rod, the pressure sensor and the roller to ensure that the yarn is pressed on the pressure sensor.

[0015] Preferably, the other side of the mounting base is provided with a second limiting rod to limit the yarn. The yarn passes sequentially from the yarn frame below the first limiting rod, the pressure sensor, below the second limiting rod, and the roller. The first and second limiting rods limit the yarn, so that the yarn presses more force on the pressure sensor, thereby improving the sensing capability of the pressure sensor. Attached Figure Description

[0016] Figure 1 This is a front view of a tufting machine for preventing yarn breakage according to this utility model.

[0017] Figure 2 This is a perspective view of the connection between a pressure sensor and a mounting base for a tufting machine that prevents yarn breakage, according to this utility model.

[0018] Among them, 1. Tufting machine body, 110. Mounting base, 111. Mounting groove, 112. First limit rod, 113. Second limit rod, 2. Automatic stop device, 210. Pressure sensor, 3. Roller, 4. Alarm light, 5. Yarn guide plate, 6. Buzzer;

[0019] →: Direction of yarn movement. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a front view of a tufting machine for preventing yarn breakage according to this utility model. Figure 1In the illustrated embodiment, this utility model provides a tufting machine for preventing yarn breakage, including a tufting machine body 1. The tufting machine body 1 is provided with a yarn guide plate 5, rollers 3, and a yarn frame. The yarn on the yarn frame enters the rollers 3 through the yarn guide plate 5 for drafting. Specifically, in order to prevent the yarn from getting caught on the yarn frame and causing breakage, an automatic stop device 2 is provided on the tufting machine body 1. The automatic stop device 2 includes a pressure sensor 210. The automatic stop device 2 is located between the yarn frame and the rollers 3, that is, the automatic stop device 2 is located on the path of the yarn from the yarn frame to the rollers. The yarn passes sequentially from the yarn frame through the pressure sensor 210 and the rollers 3, and the yarn presses against the pressure sensor 210. When the yarn gets caught on the yarn rack, it is difficult to pull the yarn. During the drafting process, the yarn tension will increase, and the pressure of the yarn on the pressure sensor 210 will increase. The pressure sensor 210 can detect the pressure data. When the detected pressure data exceeds the set value, it sends an electrical signal to the tufting machine body 1 through a wire, thereby stopping the tufting machine body from working.

[0022] Specifically, the yarn guide plate 5 is located above the tufting machine body 1, and the roller 3 is located below the tufting machine body 1. The yarn guide plate 5, the automatic stop device 2, and the roller 5 are arranged sequentially on the tufting machine body 1 from top to bottom. Specifically, the yarn guide plate 5 has multiple yarn guide holes, each corresponding to a yarn, allowing the yarn to pass through and be guided. Specifically, to prevent the yarns from tangling, yarn guide tubes are installed inside the yarn guide holes, with one guide tube corresponding to one yarn. This maintains a certain distance between the yarns, preventing them from tangling.

[0023] As one embodiment, the automatic shutdown device 2 also includes a buzzer 6, which is equipped with an alarm light 4. When the pressure sensor 210 sends an electrical signal to stop the tufting machine body 1, the buzzer 6 can also receive the electrical signal through the wire and emit an alarm sound after receiving the electrical signal, which can automatically alarm and remind the staff in time, thereby increasing production efficiency. By setting up an alarm light 4, the alarm can be emitted together with the buzzer 6, which can further facilitate the staff to find the situation where the yarn is hanging on the yarn rack.

[0024] As one embodiment, to facilitate the installation of the pressure sensor 210 on the tufting machine body 1, the tufting machine body 1 is provided with a mounting base 110. The automatic stop device 2 is detachably connected to the mounting base 110. The roller 3 is located on the tufting machine body 1 and below the mounting base 110, facilitating the fixing of the automatic stop device 210 to the mounting base 110. Specifically, the buzzer 6 and the alarm light 4 are fixed to the mounting base 110 by bolts.

[0025] Figure 2 This is a perspective view of the connection between a pressure sensor and a mounting base for a tufting machine that prevents yarn breakage, as described in this utility model. Figure 2 In the illustrated embodiment, the mounting base 110 has a mounting groove 111 on its surface. The pressure sensor 210 is detachably connected to the mounting groove 111 for easy installation and removal. The mounting base 110 is arranged along the length of the tufting machine body 1, and the mounting groove 111 is arranged along the length of the mounting base 110. Specifically, the mounting groove 111 extends through both sides of the mounting base 110 along its length. The pressure sensor 210 can be installed from the left or right side of the mounting groove 111, depending on the actual situation. Specifically, the pressure sensor 210 slides within the mounting groove 111, allowing adjustment of its position so that the yarn is accurately pressed onto the pressure sensor 210.

[0026] As one embodiment, the pressure sensor 210 is a piezoelectric thin film sensor. Piezoelectric thin films are extremely durable and can withstand millions of bends and vibrations, resulting in a long service life.

[0027] As one embodiment, the mounting base 110 has a first limiting rod 112 on one side for upper limit control of the yarn. The yarn passes sequentially from the yarn frame below the first limiting rod 112, the pressure sensor 210, and the roller 3, preventing the yarn from detaching from the pressure sensor 210 and ensuring high reliability. Specifically, the mounting base 110 has a second limiting rod 113 on the other side for upper limit control of the yarn. The yarn passes sequentially from the yarn frame below the first limiting rod 112, the pressure sensor 210, below the second limiting rod 113, and the roller 3. The first limiting rod 112 and the second limiting rod 113 limit the yarn, keeping it close to the pressure sensor 210, thus increasing the pressure force exerted by the yarn on the pressure sensor 210 and improving the sensing capability of the pressure sensor 210.

[0028] Specifically, the circuit connection between the automatic stop device 2 and the control board of the tufting machine body 1 is similar to the structure in the automatic alarm stop device with publication number CN216661957U.

[0029] The principle of this invention is to install an automatic stop device 2 between the roller 3 and the yarn frame. The automatic stop device 2 includes a pressure sensor 210. The yarn comes out of the yarn frame, passes through the pressure sensor 210, and then passes through the roller 3 for drafting. When the yarn gets caught on the yarn frame, the yarn will apply a certain pressure to the pressure sensor 210. The pressure sensor 210 can detect the pressure data and send an electrical signal to the tufting machine body 1 through a wire, thereby stopping the tufting machine body 1 from working. In this way, the machine can be stopped in time when the yarn gets caught on the yarn frame.

[0030] Working Principle: The automatic stop device 2 includes four 40cm*10cm pressure sensors 210, distributed along the length of the tufting machine body 1. When the tufting machine body 1 is weaving a carpet, if the yarn gets caught on the yarn frame, generating a counter-tension, the pressure sensors 210 can detect the pressure data. When the detected pressure data exceeds the set value, the pressure sensors 210 send an electrical signal to stop the tufting machine body 1 from working. The buzzer 6 can also receive the electrical signal through the wire and emit an alarm sound, providing automatic alarm and timely reminders to workers, thus increasing production efficiency. The alarm light 4 can sound the alarm along with the buzzer 6. After the yarn snagging is resolved, pressing the reset button on the pressure sensor 210 allows the machine to be restarted normally. Installing the automatic stop device 2 reduces yarn breakage, lowers the carpet defect rate, and allows for advance detection of yarn snagging.

[0031] Specifically, the pressure sensor 210 senses the yarn in zones, and the pressure sensor 210 corresponds one-to-one with the alarm light 4. The pressure sensor 210 is set and arranged along the length of the tufting machine body 1. In this way, as long as the alarm light 4 is alarming, it can accurately know which area of ​​the yarn is caught and quickly eliminate the fault.

[0032] Based on the above solutions, if any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A tufting machine for preventing yarn breakage, comprising a tufting machine body (1), characterized in that: The tufting machine body (1) is equipped with an automatic stop device (2), which includes a pressure sensor (210) located between the yarn frame and the roller (3). The yarn passes sequentially from the yarn frame through the pressure sensor (210) and the roller (3).

2. The tufting machine for preventing yarn breakage according to claim 1, characterized in that: The automatic shutdown device (2) also includes a buzzer (6), which is equipped with an alarm light (4).

3. A tufting machine for preventing yarn breakage according to claim 1, characterized in that: The tufting machine body (1) is provided with a mounting base (110), the automatic stop device (2) is detachably connected to the mounting base (110), and the roller (3) is provided on the tufting machine body (1) and the roller (3) is located below the mounting base (110).

4. A tufting machine for preventing yarn breakage according to claim 3, characterized in that: The mounting base (110) has a mounting groove (111) on its surface, and the pressure sensor (210) is detachably connected in the mounting groove (111).

5. A tufting machine for preventing yarn breakage according to claim 4, characterized in that: The mounting groove (111) extends through both sides of the mounting base (110) along the length of the mounting base (110), and the pressure sensor (210) is slidably fitted in the mounting groove (111).

6. A tufting machine for preventing yarn breakage according to any one of claims 1-5, characterized in that: The pressure sensor (210) is a piezoelectric thin film sensor.

7. A tufting machine for preventing yarn breakage according to any one of claims 3-5, characterized in that: The mounting base (110) has a first limiting rod (112) on one side for upper limit positioning of the yarn. The yarn passes from the yarn frame through the first limiting rod (112), the pressure sensor (210), and the roller (3) in sequence.

8. A tufting machine for preventing yarn breakage according to claim 7, characterized in that: The mounting base (110) is provided with a second limiting rod (113) on the other side to limit the yarn. The yarn passes from the yarn frame under the first limiting rod (112), the pressure sensor (210), under the second limiting rod (113) and the roller (3).

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