阅读说明：本技术 并条机后断条报警锁停装置 (Rear broken bar alarm locking device of drawing frame ) 是由 马春琴 颜国华 卜启虎 李新全 冯传军 于 2020-07-28 设计创作，主要内容包括：本发明涉及到一种并条机后断条报警锁停装置,包括一根悬挂于并条机后导条架与牵伸罗拉之间的平衡杆,平衡杆水平设置在条干下方,平衡杆的一侧设置有一个检测座,检测座上端设置有一条竖直向下延伸的凹槽,凹槽在检测座正对平衡杆的一面形成开口,凹槽内连接有一根平行于平衡杆的销轴,销轴上转动连接有一块挡板,凹槽两侧内壁上分别设置有一个光电发射器和一个光电接收器,光电发射器和光电接收器位于销轴正下方且相互正对,挡板自然下垂时刚好阻挡在光电接收器和光电发射器之间,挡板往上摆动后挡板自由端刚好搭接在平衡杆上,此时光电接收器和光电发射器之间无遮挡。本发明对并条过程中的断条检测效果更为准确。(The invention relates to a rear broken bar alarm locking device of a drawing frame, which comprises a balancing rod hung between a rear guide frame and a drawing roller of the drawing frame, wherein the balancing rod is horizontally arranged below a yarn levelness, one side of the balancing rod is provided with a detection seat, the upper end of the detection seat is provided with a groove which vertically extends downwards, the groove is provided with an opening on one surface, facing the balancing rod, of the detection seat, the groove is internally connected with a pin shaft parallel to the balancing rod, the pin shaft is rotatably connected with a baffle plate, the inner walls of the two sides of the groove are respectively provided with a photoelectric emitter and a photoelectric receiver, the photoelectric emitter and the photoelectric receiver are positioned under the pin shaft and are mutually facing, the baffle plate is just blocked between the photoelectric receiver and the photoelectric emitter when naturally drooping, the free end of the baffle plate is just lapped on the balancing rod after the baffle plate swings upwards, and no shielding exists between the photoelectric receiver. The invention has more accurate detection effect on broken sliver in the drawing process.)

1. The rear broken sliver alarm locking device of the drawing frame is characterized by comprising a balancing rod (3) hung between a rear guide frame (1) and a drawing roller (2) of the drawing frame, the balancing rod (3) is horizontally arranged below a sliver frame (4), one side of the balancing rod (3) is provided with a detection seat (5), the upper end of the detection seat (5) is provided with a vertical and downward extending groove (6), the groove (6) forms an opening at the side, opposite to the balancing rod (3), of the detection seat (5), a pin shaft (7) parallel to the balancing rod (3) is connected in the groove (6), the pin shaft (7) is rotatably connected with a baffle (8), the inner walls of the two sides of the groove (6) are respectively provided with a photoelectric emitter (9) and a photoelectric receiver (10), the photoelectric emitter (9) and the photoelectric receiver (10) are positioned right below the pin shaft (7) and opposite to each other, when the baffle (8) naturally sags, the baffle is just blocked between the photoelectric receiver (9) and the photoelectric emitter (10), the baffle (8) swings upwards, the free end of the baffle (8) is just lapped on the balance rod (3), and at the moment, no shielding exists between the photoelectric receiver (9) and the photoelectric emitter (10).

2. The rear broken bar alarm locking device of the drawing frame according to claim 1, characterized in that the balancing bar (3) is suspended by two strings (11), the two strings (11) are symmetrically distributed on both sides of the center of the balancing bar (3) and are both close to the center of the balancing bar (3), and the distance between the two strings (11) is 5 cm-20 cm.

3. A rear break alarm locking device of drawing frame according to claim 2, characterized in that the upper ends of two strings (11) are directly or indirectly fixedly connected to the frame (12) of drawing frame, and the detection seat (5) is also directly or indirectly fixedly connected to the frame (12) of drawing frame.

4. A rear break alarm locking device of drawing frame according to claim 2, characterized in that the upper ends of two strings (11) are directly or indirectly fixedly connected to a separate bracket (13) not in contact with the drawing frame; the detection seat (5) is also directly or indirectly fixedly connected to the bracket (13).

5. The rear broken bar alarm locking device of the drawing frame according to claim 1, characterized in that the groove (6) on the detection seat (5) is opposite to the center of the balance bar (3), and the baffle (8) is just lapped on the center of the balance bar (3).

6. The rear broken sliver alarm locking device of the drawing frame according to claim 1, wherein the photoelectric receiver (10) is electrically connected with a controller (14) of the drawing frame, an electronic switch (15) is connected in series with a power supply circuit of the drawing frame, the electronic switch (15) is also electrically connected with the controller (14), and the controller (14) controls the on-off of the electronic switch (15) according to whether an electric signal sent by the photoelectric receiver (10) is received.

7. A rear sliver-breaking alarm locking device of a drawing frame according to claim 6, characterized in that the electronic switch (15) is a field effect transistor or a relay or a triode.

The technical field is as follows:

the invention relates to a post-broken-bar alarm locking device of a drawing frame

Background art:

the sliver can be formed when the sliver is broken in the drawing process of the drawing frame and is not processed in time, and the quality defects such as sliver knots, partial yarns, blending ratio deviation and the like can be formed after the sliver is subjected to roving drafting and spun yarn drafting, so that the real-time monitoring of the evenness integrity of the drawing frame is important for avoiding the formation of the sliver in the drawing process.

At present, the mode for detecting the phenomenon of strip breakage of a strip is a mode of adopting a photoelectric sensor, a photoelectric receiver is arranged above the strip, a photoelectric emitter is arranged below the strip, when the strip is normal, the photoelectric emitter and the photoelectric receiver are blocked, and when the strip is broken, the photoelectric receiver can receive an optical signal sent by the photoelectric emitter, so that the signal is sent to a controller, and the controller controls a drawing frame to stop.

Because the evenness has horizontal skew when advancing on the back guide frame, consequently above-mentioned detection device appears the false alarm easily, and probably the evenness falls to cover the photoelectric emitter below it after the broken string moreover, leads to detection device to detect the failure, therefore the evenness broken string detection device who uses at present rate of false alarm is high, detection effect is not good.

The invention content is as follows:

the technical problem to be solved by the invention is as follows: the rear broken bar alarm locking device for the drawing frame is more accurate in detection effect.

In order to solve the technical problems, the invention adopts the technical scheme that: a rear broken bar alarm locking device of a drawing frame comprises a balance rod hung between a rear guide frame and a drawing roller of the drawing frame, the balance rod is horizontally arranged below the sliver, one side of the balance rod is provided with a detection seat, the upper end of the detection seat is provided with a vertical downwardly extending groove, the groove is provided with an opening at one side, opposite to the balance rod, of the detection seat, the groove is internally connected with a pin shaft parallel to the balance rod, the pin shaft is rotatably connected with a baffle plate, the inner walls of two sides of the groove are respectively provided with a photoelectric emitter and a photoelectric receiver, the photoelectric emitter and the photoelectric receiver are positioned under the pin shaft and opposite to each other, the baffle plate just blocks between the photoelectric receiver and the photoelectric emitter when naturally droops, the free end of the baffle plate swings upwards and just overlaps the balance rod, and at the moment, no shielding exists between the photoelectric receiver and the photoelectric emitter.

Preferably, the balancing pole is suspended by two strings, the two strings are symmetrically distributed on two sides of the center of the balancing pole and are close to the center of the balancing pole, and the distance between the two strings is 5 cm-20 cm.

Preferably, the upper ends of the two strings are directly or indirectly fixedly connected to the frame of the drawing frame, and the detection seat is also directly or indirectly fixedly connected to the frame of the drawing frame.

As a preferred solution, the upper ends of the two strings are fixedly connected directly or indirectly to a separate support that is not in contact with the drawing frame; the detection seat is also directly or indirectly fixedly connected to the bracket.

As a preferable scheme, the groove on the detection seat is opposite to the center of the balance rod, and the baffle is just lapped at the center of the balance rod.

As a preferable scheme, the photoelectric receiver is electrically connected with a controller of the drawing frame, an electronic switch is connected in series on a power supply circuit of the drawing frame, the electronic switch is also electrically connected with the controller, and the controller controls the on-off of the electronic switch according to whether an electric signal sent by the photoelectric receiver is received or not.

Preferably, the electronic switch is a field effect transistor, a relay or a triode.

The invention has the beneficial effects that: the invention detects broken bars through the balance rod, positions the blocking piece through the balance rod, and blocks the photoelectric connection transmitter and the photoelectric receiver through the blocking piece, thereby ensuring that the broken bar alarm locking device can accurately detect the broken bar phenomenon after drawing, closing the drawing machine in time, avoiding the occurrence of thin bars.

Description of the drawings:

the following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view taken in the direction A of FIG. 1;

FIG. 3 is a view of the structure when the baffle naturally sags;

FIG. 4 is a schematic diagram of another embodiment of the present invention;

fig. 5 is a power supply circuit diagram of the drawing frame according to the invention.

In fig. 1 to 5: 1. the device comprises a rear sliver guide frame, 2, a drawing roller, 3, a balancing rod, 4, a sliver, 5, a detection seat, 6, a groove, 7, a pin shaft, 8, a baffle, 9, a photoelectric emitter, 10, a photoelectric receiver, 11, a string, 12, a drawing frame, 13, a support, 14, a controller, 15 and an electronic switch.

The specific implementation mode is as follows:

specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-3, the rear broken string alarm locking device for the drawing frame is characterized by comprising a balancing rod 3 suspended between a rear guide frame 1 and a drawing roller 2 of the drawing frame, wherein the balancing rod 3 is horizontally arranged below a evenness 4, one side of the balancing rod 3 is provided with a detection seat 5, the upper end of the detection seat 5 is provided with a groove 6 extending vertically and downwardly, the groove 6 forms an opening on one side of the detection seat 5 facing the balancing rod 3, a pin shaft 7 parallel to the balancing rod 3 is connected in the groove 6, a baffle plate 8 is rotatably connected on the pin shaft 7, inner walls on two sides of the groove 6 are respectively provided with a photoelectric emitter 9 and a photoelectric receiver 10, the photoelectric emitter 9 and the photoelectric receiver 10 are positioned under the pin shaft 7 and face each other, the baffle plate 8 is just blocked between the photoelectric emitter 9 and the photoelectric emitter 10 when naturally drooping, the baffle plate 8 swings upwards, the free end of the baffle plate 8 is just lapped on the balancing rod 3, there is no obstruction between the photo-receiver 9 and the photo-emitter 10.

The balancing pole 3 is suspended through two strings 11, the two strings 11 are symmetrically distributed on two sides of the center of the balancing pole 3 and are close to the center of the balancing pole 3, the distance between the two strings 11 is 5 cm-20 cm, and the smaller the distance between the two strings 11 is, the more sensitive the balancing pole 3 is.

As shown in fig. 2, the upper ends of the two strings 11 are directly or indirectly fixedly connected to the drawing frame 12, and the detection base 5 is also directly or indirectly fixedly connected to the drawing frame 12. The groove 6 on the detection seat 5 is opposite to the center of the balance rod 3, and the baffle 8 is just lapped at the center of the balance rod 3.

As shown in fig. 5, the photoelectric receiver 10 is electrically connected to a controller 14 of the drawing frame, an electronic switch 15 is connected in series to a power supply circuit of the drawing frame, the electronic switch 15 is also electrically connected to the controller 14, and the controller 14 controls on/off of the electronic switch 15 according to whether an electrical signal sent by the photoelectric receiver 10 is received. The electronic switch 15 is a field effect transistor, a relay or a triode, preferably a relay.

As shown in fig. 4, the upper ends of the two strings 11 may also be fixedly connected directly or indirectly to a separate support 13 that is not in contact with the drawing frame; the detection seat 5 can also be directly or indirectly fixedly connected on the support 13, and the support 13 is not contacted with the drawing frame so as not to vibrate, thereby improving the stability of the balance rod 3, avoiding the phenomenon of false alarm caused by the automatic falling of the baffle 8 caused by the vibration of the balance rod 3, and further improving the detection accuracy.

The working process of the invention is as follows: when a broken sliver exists, the tail end of the broken sliver can fall on the balance rod 3 to cause the balance rod 3 to swing, the swing of the balance rod 3 can cause the baffle 8 lapped on the balance rod to be separated from the balance rod 3, the baffle 8 can swing down to a natural sagging state after being separated from the balance rod 3 to block between the photoelectric receiver 9 and the photoelectric receiver 10, the photoelectric receiver 10 is blocked to receive a light signal, the controller 14 cannot receive a signal sent by the photoelectric receiver 10, a program is preset in the controller 14, when the controller 14 cannot receive the signal sent by the photoelectric receiver 10, the electronic switch 15 is controlled to be switched off, after the electronic switch 15 is switched off, a power supply circuit of the drawing frame is switched off, and even if an operator presses the starting switch 16 of the drawing frame, the drawing frame cannot be started. This forces the operator to check the cause of the stoppage, and after the broken string is connected and the lap joint between the baffle 8 and the balance bar 3 is restored, the controller 14 receives the signal sent by the photoelectric receiver 10 again, the controller 14 restores the on state of the electronic switch 15, and at this time, the draw frame can restore the production by pressing the start switch 16 again.

The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.