Automatic piecing device provided with sensor and suitable for ring spinning machine

Abstract

The utility model discloses an automatic piecing device with a sensor suitable for a ring spinner, the ring spinner comprises a drafting device with a drafting roller and a spinning station, the ring spinner is equipped with an automatic piecing device, and the automatic piecing device comprises one or more piecing modules; the roving detection sensor is mounted on the bracket; detecting whether roving is supplied to a spinning station of the ring spinning machine or not through the roving detection sensor; a controller; the controller is connected with the roving detection sensor and the joint module so as to detect whether roving exists or not. The roving detection device is used for detecting whether roving exists in the spinning ring spinning machine or not before the yarn-breaking spinning station of the ring spinning machine starts the yarn-jointing sequence, and the yarn-jointing efficiency of the automatic yarn-jointing device and the working efficiency of the spinning machine are guaranteed.

Description

Technical Field

[0001] The utility model relates to a textile ring spinning machine, and more particularly to an automatic splicing device for splicing broken yarn ends in a textile ring spinning machine. More specifically, the utility model relates to an improved sensor dedicated to the automatic splicing device, which is used to detect whether roving is supplied to a spinning station of the ring spinning machine before starting the splicing operation. Background Art

[0002] In a textile mill, the ring spinning machine is a key machine for producing continuous yarn. The textile roving material produced by the roving frame is fed into the ring spinning machine. The roving material is first drafted and twisted by the drafting device of the ring spinning machine and then wound onto a package, the so-called weft tube or bobbin.

[0003] During the spinning process, the ring spinning machines often experience yarn breaks, which require constant attention from the staff. Yarn breaks remain an inevitable problem in ring spinning machines, which requires a large number of workers to continuously monitor the ring spinning machines on both sides along the entire frame, when there are usually more than 1,800 spindles. These yarn breaks must be manually spliced ​​and the spinning process must be restarted immediately after a yarn break to avoid wasting yarn.

[0004] In order to overcome the above problems, an automatic piecing device has been developed as an improvement over the traditional manual piecing method. The automatic piecing device is in the form of a movable vehicle with wheels / tracks. The piecing vehicle stops at the corresponding spindle device where the piecing needs to be paid attention to. The piecing device is usually moved longitudinally along the frame channel. Before starting the piecing operation, the piecing vehicle stops in front of the position where the spindle of the ring spinning machine is located.

[0005] In ring spinning machines, the roving supply is interrupted because the roving on the roving feed tube runs out. In existing installations, it is not always possible to ensure that the drafting device of the ring spinning machine is fed with roving ends regularly. In addition, roving breaks frequently occur in the creel device of the ring spinning machine. If the roving supply to the drafting device is not ensured, the spinning stations are idle and no yarn can be produced.

[0006] Normally, the automatic piecing device of the ring spinning machine will move to the yarn-breaking spindle position to start the piecing operation, and the supply of roving to the yarn-breaking spinning position will not be ensured at this time. If the roving is not supplied to the above-mentioned spinning station, the supply of roving to the yarn-breaking spindle position cannot be ensured, which will cause the entire piecing sequence of the automatic piecing device to fail. The automatic piecing device repeatedly attempts to piece and fails, which will lead to a lot of time and energy consumption, especially for the spinning station of the ring spinning machine, and will also affect the availability of the automatic piecing device at another yarn-breaking spindle position (which can normally supply roving). In another known case, during normal yarn breaking, the roving stop device of the drafting zone is automatically activated to reduce yarn waste. When the automatic piecing device is located in front of the yarn-breaking spindle position, the roving stop device is configured to release the roving. In the known device, the roving stop device is unable to release the roving. When it is not noticed for a long time, it will also cause the spinning station to be idle, and it will also cause the automatic piecing device to fail to piece multiple times. As a result, the overall efficiency of the automatic piecing device is affected, since empty roving supply bobbins or roving breaks in the creel area of ​​the ring spinning machine go unnoticed.

[0007] Therefore, a mechanism is needed to ensure that roving is properly supplied to the spinning stations of the ring spinning frame during the piecing operation of the automatic piecing device. Utility Model Content

[0008] The main technical problem solved by the utility model is to provide an automatic jointing device with a sensor suitable for a ring spinning machine, which is used to detect whether there is coarse yarn in the textile ring spinning machine before starting the jointing sequence in the spinning station of the ring spinning machine where the yarn is broken, so as to ensure the jointing efficiency of the automatic jointing device and the working efficiency of the spinning machine.

[0009] In order to solve the above technical problems, a technical solution adopted by the utility model is: the utility model provides an automatic joint device with a sensor suitable for a ring spinning machine, the ring spinning machine includes a drafting device with a drafting roller and a spinning station, and is equipped with an automatic joint device, the automatic joint device includes one or more joint modules;

[0010] At least one roving detection sensor mounted on the bracket; detecting whether roving is supplied to the spinning station of the ring spinning machine by the roving detection sensor;

[0011] Controller; the controller is connected to the roving detection sensor and the joint module to detect whether roving exists.

[0012] Furthermore, the roving detection sensor is an optical sensor or at least one of a laser sensor, an ultrasonic sensor, a radar sensor, a visual sensor and an electromagnetic sensor.

[0013] Furthermore, the roving detection sensor is installed on the bracket in an inclined manner, and the roving detection sensor points to the drafting device of the ring spinning frame to detect the presence or absence of roving between the feeding and delivery drafting rollers of the ring spinning frame.

[0014] Furthermore, the roving detection sensor is configured to send and receive signals from a controller of the automatic piecing device.

[0015] Further, the roving detection sensor is an optical sensor, and the optical sensor is a diffusion sensor with background suppression function;

[0016] The optical sensor houses a transmitter and a receiver inside its housing.

[0017] Furthermore, the end of the bracket is connected to the roving detection sensor via an adjustment structure, and the installation angle of the roving detection sensor can be adjusted by adjusting the adjustment structure.

[0018] Furthermore, the roving detection sensor is fixed on the top surface or the front surface of the automatic jointing device.

[0019] The beneficial effects of the utility model are:

[0020] The automatic jointing device of the utility model is equipped with a roving detection sensor, which is used to detect whether there is roving in the textile ring spinning machine before starting the jointing sequence in the spinning station with yarn breakage of the ring spinning machine, so as to ensure that the automatic jointing device is always in a usable state in the spinning station with yarn breakage. The automatic jointing device will not waste time in the spinning station with interrupted roving supply and low success rate. Therefore, the efficiency of the automatic jointing device is improved, thereby improving the overall production efficiency of the textile ring spinning machine.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A side view of an automatic piecing device for a ring spinning machine with a roving detection sensor according to the utility model is shown.

[0023] Figure 2 A top view of an automatic piecing device for a ring spinning machine with a roving detection sensor according to the present invention is shown.

[0024] Figure 3 The schematic diagram of the roving detection sensor installed in the automatic jointing device according to the utility model is shown.

[0025] Figure 4 The utility model shows a working principle diagram of a roving detection sensor for an automatic jointing device of a ring spinning machine. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the present invention, and those skilled in the art can easily understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed by the present invention.

[0027] The up, down, left, and right directions in this embodiment are described based on the illustrated positions and are not intended to limit the scope of protection of this application.

[0028] Embodiment: An automatic piecing device with a sensor suitable for a ring spinning machine, such as Figures 1 to 3 As shown, the textile ring spinning machine 1 includes at least one or more spinning stations 1a, and is equipped with a drafting device 2 and an automatic jointing device 3. Each spinning station 1a is supplied with roving 4, which is fed into the drafting device 2 and is greatly drafted to reduce its thickness. The automatic jointing device 3 includes a yarn lifting module for lifting the broken yarn from the bobbin, a top suction module for fixing the lifted yarn, at least one yarn insertion module for inserting the yarn into the ring spinning machine wire ring, and a jointing module for inserting the yarn between the drafting rollers of the drafting device 2 of the ring spinning machine. All of the above modules 3a will operate in a specific order according to the command signal issued by the controller 5 of the automatic jointing device 3. The structure and function of the automatic joint of the automatic jointing device belong to the prior art, so they are not repeated.

[0029] The automatic jointing device is equipped with at least one roving detection sensor 6, which is used to detect the supply of roving 4 to the spinning station 1a of the ring spinning machine 1 before the device starts the jointing sequence each time. The roving detection sensor 6 is preferably an optical sensor. The optical sensor is a diffusion sensor with background suppression function. The optical sensor is preferably adjustable in the transverse and longitudinal directions of the outer shell at the same time, so as to detect the roving 4 at any position of the ring spinning machine 1. A specific structure is: the end of the bracket is connected to the roving detection sensor through an adjustment structure, and the installation angle of the roving detection sensor is adjusted by adjusting the adjustment structure. For example, the adjustment structure is a ball hinge installed at the end of the bracket, which can rotate in three-dimensional space, and will drive the roving detection sensor to rotate, so as to sense the presence or absence of roving 4 at any position of the ring spinning machine 1.

[0030] The optical sensor has a housing with a transmitter and a receiver inside. Advantageously, the sensor can also be selected from a laser sensor, an ultrasonic sensor, a radar sensor, a visual sensor or an electromagnetic sensor. The roving detection sensor 6 is mounted on a bracket 7, and the bracket 7 is mounted on the top / front side of the automatic jointing device 3. The roving detection sensor 6 is mounted on the drafting device 2 in an inclined manner so that the roving detection sensor points to the roving between the feeding and the outgoing drafting rollers. Advantageously, the roving detection sensor 6 is mounted in a manner that can detect the presence of roving at any position from the roving frame to the spindle.

[0031] The roving detection sensor 6 installed in the automatic piecing device 3 is configured to detect whether the roving 4 is supplied in the spinning station 1a. The roving detection sensor 6 is configured to send and receive signals through the controller 5 of the automatic piecing device 3 each time before starting the piecing sequence at the spinning station 1a. According to the signal received from the roving detection sensor 6, the controller 5 of the automatic piecing device 3 decides whether the piecing operation should be started or terminated at the spinning station 1a where the yarn is broken.

[0032] like Figure 1 and Figure 4 As shown, according to one embodiment of the utility model, the automatic joint device 3 of the ring spinning machine 1 moves to the spinning station 1a where the yarn is broken. The roving detection sensor 6 of the automatic joint device 3 detects whether there is a roving supply 4 in the spinning station 1a where the yarn is broken. Once the roving detection sensor 6 of the automatic joint device 3 detects that there is a roving 4 in the spinning station 1a where the yarn is broken, the controller 5 of the automatic joint device 3 will command each joint module 3a of the automatic joint device to start the joint program to join the broken yarn. After completing the joint operation, the controller 5 of the automatic joint device 3 will command the automatic joint device 3 to move to another broken yarn spindle position. The automatic joint device 3 is positioned in front of the other broken yarn spindle again, and the roving detection sensor 6 will detect whether the roving 4 is supplied to the spinning station where the yarn is broken through the roving bobbin. When the roving detection sensor 6 of the automatic splicing device 3 detects that the roving supply is interrupted because the bobbin of the roving 4a becomes empty or the roving is broken, the controller 5 of the automatic splicing device 3 will command each splicing module 3a of the automatic splicing device 3 not to start or not to participate in the splicing sequence, and at the same time command the automatic splicing device 3 to move to the next yarn breaking spindle position.

[0033] The roving detection sensor of the automatic splicing device detects whether there is roving supply or interruption of roving supply at the spinning station with broken yarn, and sends a signal to the controller 5 of the automatic splicing device. The controller 5 of the automatic splicing device 3 displays the information of roving supply interruption on the display of the automatic splicing device 3 and / or the display of the ring spinning machine 1.

[0034] According to an advantageous embodiment of the utility model, the automatic piecing device 3 starts the piecing sequence only in the spinning station 1a with a higher piecing success rate, for example: the spinning station (1a) with the supply of roving 4. With the help of the roving detection sensor 6, it can be ensured that the automatic piecing device 3 is always available in the spinning station 1a with yarn breakage. The automatic piecing device does not waste time in the spinning station 1a with a lower success rate and interrupted supply of roving 4. Therefore, the efficiency of the automatic piecing device 3 is improved, thereby improving the overall production efficiency of the textile ring spinning machine 1.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An automatic piecing device with a sensor for a ring spinning machine, the ring spinning machine (1) comprising a drafting device (2) with a drafting roller and a spinning station (1a), and equipped with the automatic piecing device, characterized in that: The automatic joint device includes one or more joint modules; At least one roving detection sensor (6) mounted on a bracket (7); the roving detection sensor is used to detect whether roving (4) is supplied to a spinning station (1a) of a ring spinning machine (1); The controller (5) is connected to the roving detection sensor (6) and the joint module (3a) to detect whether the roving exists.

2. The automatic piecing device with a sensor suitable for a ring spinning machine according to claim 1, characterized in that: The roving detection sensor (6) is an optical sensor or at least one of a laser sensor, an ultrasonic sensor, a radar sensor, a visual sensor and an electromagnetic sensor.

3. The automatic piecing device with a sensor suitable for a ring spinning machine according to claim 1, characterized in that: A roving detection sensor (6) is installed on the bracket in an inclined manner, and the roving detection sensor points to the drafting device (2) of the ring spinning machine (1) to detect the presence or absence of roving (4) between the feeding and delivery drafting rollers of the ring spinning machine (1).

4. The automatic piecing device with a sensor suitable for a ring spinning machine according to claim 1, characterized in that: The roving detection sensor (6) is configured to send and receive signals from a controller (5) of an automatic jointing device (3).

5. The automatic piecing device with a sensor suitable for a ring spinning machine according to claim 1, characterized in that: The roving detection sensor is an optical sensor, and the optical sensor is a diffusion sensor with background suppression function; The optical sensor houses a transmitter and a receiver inside its housing.

6. The automatic piecing device with a sensor suitable for a ring spinning machine according to claim 1, characterized in that: The end of the bracket is connected to the roving detection sensor via an adjustment structure, and the installation angle of the roving detection sensor is adjusted by adjusting the adjustment structure.

7. The automatic piecing device with a sensor suitable for a ring spinning machine according to claim 1, characterized in that: The roving detection sensor (6) is fixed on the top surface or the front surface of the automatic jointing device (3).

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