A broken wire detector

Abstract

The present invention discloses a broken wire detector, the technical solution of which includes a housing, a mounting seat, a photoelectric transmitter, a photoelectric receiver and an adjustment component. The housing is provided with a mounting port and a linkage port on opposite sides, and the photoelectric transmitter is provided in the mounting port; the adjustment component is installed on the housing, and forms a detection area with the mounting port, and the photoelectric receiver is provided on the adjustment component. The mounting seat is installed on the sewing machine, the housing is slidably connected to the mounting seat, and the adjustment component is linked with the mounting seat through the linkage port. When the housing slides downward along the mounting seat, the detection area increases; when the housing slides upward along the mounting seat, the detection area decreases. The broken wire detector can make the sensor slot size proportional to the swing angle of the silk thread, thereby avoiding the occurrence of false detection.

Description

Technical Field

[0001] The present invention relates to a detector, and more particularly to a broken wire detector. Background Art

[0002] The function of the broken wire detector is to guide the wire. It is usually round in shape and large in size. The length and width of the usual specifications are both around 30mm. While guiding the wire, the broken wire detector needs to detect whether the wire is broken.

[0003] There are many principles for broken wire detectors: 1. Photoelectric induction principle; 2. Electromagnetic induction principle; 3. Vibration induction principle; 4. Image processing principle, etc. Among them, photoelectric wire detection sensors are used as the main detectors in the textile industry.

[0004] The photoelectric wire sensor can detect the broken wires of the fibers spun by the textile machinery without contact, and can cooperate with the wire cutter to cut the broken wires in time to prevent the fibers from winding around the machine parts. The photoelectric wire sensor uses the infrared photoelectric principle to detect the movement state of the fiber. When the fiber is normal, due to the machine's drafting or winding and other actions, the fiber in the sensor's U-shaped groove will have a slight shake, and this shake will continuously block the emission and reception of infrared light on both sides of the U-shaped groove, causing it to produce continuous infrared pulses; when the fiber is broken, the continuous infrared pulses decrease or disappear, and the wire detector can determine whether the fiber is broken by detecting and judging the frequency of the infrared pulses.

[0005] In actual use, when the sensor slot does not match the wire swing angle, the wire will fit against the slot wall, causing the wire shaking to calm down, resulting in the inability to generate continuous infrared pulse signals, causing the buzzer to give a false alarm. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a broken wire detector, which can make the size of the sensor slot proportional to the swing angle of the wire, thereby avoiding the occurrence of false detection.

[0007] To achieve the above object, the present invention provides the following technical solution: a broken wire detector, comprising a housing, a mounting seat, a photoelectric emitting element, a photoelectric receiving element and an adjusting assembly, wherein the housing is provided with a mounting port and a linkage port on opposite sides thereof, and the photoelectric emitting element is provided in the mounting port;

[0008] The adjusting component is installed on the housing and encloses the installation opening to form a detection area. The photoelectric receiving element is arranged on the adjusting component.

[0009] The mounting seat is mounted on the sewing machine, the housing is slidably connected to the mounting seat, and the adjustment assembly is linked with the mounting seat through a linkage port, and when the housing slides downward along the mounting seat, the detection area increases;

[0010] When the shell slides upward along the mounting seat, the detection area is reduced.

[0011] The present invention is further configured as follows: the mounting seat includes a mounting rod and a limiting ring, the mounting rod is fixedly mounted on the sewing machine, sliding grooves are arranged on both sides of the mounting rod, and the housing is slidably connected in the sliding grooves;

[0012] The limiting rings are arranged in multiple groups and are arranged equidistantly along the height direction of the mounting rod.

[0013] The present invention is further configured as follows: the limit ring is rotatably connected to the mounting rod and at least comprises a limit position and a moving position;

[0014] The limiting ring is provided with a first connecting portion, a linkage portion and a second connecting portion along its circumference;

[0015] When the limit ring is located at the limit position, the limit ring blocks the sliding groove and the adjustment component respectively;

[0016] When the limiting ring is located at the moving position, the first connecting portion and the second connecting portion are respectively connected to the sliding grooves on both sides, and the linkage portion is aligned with the adjusting assembly.

[0017] The present invention is further configured as follows: a plurality of limiter assemblies are arranged on the mounting rod, and are arranged in one-to-one correspondence with the limiter rings;

[0018] The limiting assembly includes a limiting groove, a limiting bead and a limiting spring, and the limiting bead is slidably connected in the limiting groove through the limiting spring;

[0019] Each of the limiting rings is provided with two groups of limiting holes.

[0020] The present invention is further configured as follows: the adjustment assembly includes a first adjustment arm, a second adjustment arm, a hinged arm and a linkage member, the first adjustment arm and the second adjustment arm are respectively rotatably connected to the two sides of the installation opening through a torsion spring, one end of the linkage member is linked to the first adjustment arm and the second adjustment arm, and the other end is linked to the linkage part;

[0021] One end of the hinged arm is hinged to the first hinged arm, and the other end is abutted against the inner side of the second adjusting arm.

[0022] The present invention is further configured such that: the first adjusting arm, the second adjusting arm and the articulated arm are all provided with photoelectric receiving elements.

[0023] The present invention is further configured as follows: the linkage member includes a driving gear, a transmission gear and a transmission rod, the transmission gear and the transmission rod are each provided with two groups, the two transmission gears are respectively connected to the two ends of the driving gear, and each transmission gear is meshed with a transmission rod;

[0024] One end of one transmission rod is connected to the first adjusting arm, and one end of the other transmission rod is connected to the second adjusting arm.

[0025] The present invention is further configured as follows: the linkage portion includes linkage teeth, and when the housing moves downward, the linkage teeth push the driving gear to rotate.

[0026] The present invention is further configured as follows: the mounting rod comprises a rod body and a clamp, the clamp is arranged in two groups and is respectively located at the upper and lower ends of the rod body, and the clamp is used for clamping and cooperating with a sewing machine.

[0027] The present invention is further configured as follows: a controller is arranged inside the shell, and a buzzer is externally connected to the controller.

[0028] In summary, the present invention has the following beneficial effects: the mounting base is installed on the sewing machine, and then the shell is slid from top to bottom to be connected to the mounting base, and the silk thread passes through the detection area. Since the silk thread is also suspended from top to bottom, the swing angle of the upper silk thread is smaller than the swing angle of the lower silk thread. By adjusting the position of the shell, it can meet various installation height requirements and adapt to the silk thread conditions of different heights, avoiding the silk thread from abutting against the groove wall, resulting in inadequate detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the broken wire detector;

[0030] Figure 2 is a schematic diagram of the three-dimensional structure of the shell;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjustment component;

[0032] Figure 4 Schematic diagram of the three-dimensional structure of the limiting ring;

[0033] Figure 5 is a cross-sectional view of the limiting component;

[0034] Figure 6 This is the logic block diagram of the broken wire detector.

[0035] Figure numerals: 1. Shell; 11. Mounting port; 12. Linkage port; 2. Mounting seat; 21. Mounting rod; 211. Rod body; 212. Clamp; 22. Limiting ring; 221. First connecting part; 222. Linkage part; 223. Second connecting part; 224. Limiting hole; 23. Limiting assembly; 231. Limiting groove; 232. Limiting bead; 233. Limiting spring; 3. Photoelectric transmitter; 4. Photoelectric receiver; 5. Adjustment assembly; 51. First adjustment arm; 52. Second adjustment arm; 53. Articulated arm; 54. Linkage part; 541. Drive gear; 542. Transmission gear; 543. Transmission rod; 6. Detection area; 7. Controller; 8. Buzzer. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 6 As shown, in order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a broken wire detector, comprising a housing 1, a mounting seat 2, a photoelectric emitting element 3, a photoelectric receiving element 4 and an adjusting assembly 5, the housing 1 is provided with a mounting opening 11 and a linkage opening 12 on opposite sides thereof, and the photoelectric emitting element 3 is arranged in the mounting opening 11;

[0038] The adjusting component 5 is installed on the housing 1 , and together with the installation opening 11 , forms a detection area 6 . The photoelectric receiving element 4 is disposed on the adjusting component 5 .

[0039] The mounting base 2 is mounted on the sewing machine, the housing 1 is slidably connected to the mounting base 2, and the adjustment component 5 is linked with the mounting base 2 through the linkage port 12. When the housing 1 slides downward along the mounting base 2, the detection area 6 increases in range;

[0040] When the housing 1 slides upward along the mounting base 2 , the detection area 6 is reduced in size.

[0041] According to the design of the present invention, the mounting base 2 is installed on the sewing machine, and then the shell 1 is slid from top to bottom to be connected to the mounting base 2, and the silk thread passes through the detection area 6. Since the silk thread is also suspended from top to bottom, the swing angle of the upper end silk thread is smaller than the swing angle of the lower end silk thread. By adjusting the position of the shell 1, it can meet various installation height requirements and adapt to the silk thread conditions at different heights, avoiding the silk thread from abutting against the groove wall, resulting in poor detection.

[0042] The present invention is further configured as follows: the mounting seat 2 includes a mounting rod 21 and a limiting ring 22, the mounting rod 21 is fixedly mounted on the sewing machine, sliding grooves are arranged on both sides of the mounting rod 21, and the housing 1 is slidably connected in the sliding grooves;

[0043] There are multiple groups of limit rings 22 , which are arranged equidistantly along the height direction of the mounting rod 21 .

[0044] The design of this structure can limit the slippage of the housing 1 through the limit ring 22 and form a plurality of travel spaces.

[0045] The present invention is further configured as follows: the limiting ring 22 is rotatably connected to the mounting rod 21 and includes at least a limiting position and a moving position;

[0046] The limiting ring 22 is provided with a first connecting portion 221, a linkage portion 222 and a second connecting portion 223 along its circumference;

[0047] Combination Figure 1 and Figure 2 As shown:

[0048] When the limiting ring 22 is located at the limiting position, the limiting ring 22 blocks the sliding groove and the adjusting assembly 5 respectively. At this time, the lower end of the shell 1 abuts against the limiting ring 22, thereby limiting the movement of the limiting ring 22.

[0049] When the limit ring 22 is located at the moving station, the first connecting part 221 and the second connecting part 223 are respectively connected to the sliding grooves on both sides, and the linkage part 222 is aligned with the adjustment component 5. At this time, the sliding groove is connected, and the shell 1 can move along the sliding groove. During the movement, the adjustment component 5 will be linked with the linkage part 222, so that the size of the detection area 6 will increase.

[0050] Specifically, when the housing 1 moves downward, the detection area 6 becomes larger; when the housing 1 moves upward, the detection area 6 becomes smaller.

[0051] The present invention is further configured as follows: a plurality of groups of limiter assemblies 23 are arranged on the mounting rod 21, and are arranged one-to-one correspondingly with the limiter rings 22;

[0052] The limiting assembly 23 includes a limiting groove 231, a limiting bead 232 and a limiting spring 233. The limiting bead 232 is slidably connected in the limiting groove 231 through the limiting spring 233.

[0053] Two groups of limiting holes 224 are disposed on each limiting ring 22 .

[0054] like Figure 4 and 5As shown, the two groups of limit holes 224 correspond to the limit position and the moving position respectively. When the limit ring 22 is in the two positions, the limit beads 232 are inserted into the limit holes 224 under the action of the limit springs 233, which plays a certain role in limiting the rotation of the limit ring 22.

[0055] The present invention is further configured as follows: the adjustment assembly 5 includes a first adjustment arm 51, a second adjustment arm 52, a hinged arm 53 and a linkage member 54, the first adjustment arm 51 and the second adjustment arm 52 are respectively rotatably connected to the two sides of the installation opening 11 through a torsion spring, one end of the linkage member 54 is linked to the first adjustment arm 51 and the second adjustment arm 52, and the other end is linked to the linkage portion 222;

[0056] One end of the hinged arm 53 is hinged to the first hinged arm 53 (connected by a torsion spring), and the other end is disposed in contact with the inner side of the second adjustment arm 52 .

[0057] by Figure 2 and Figure 3 As shown, the design of this structure is that when the first adjusting arm 51 and the second adjusting arm 52 are forced to flip outward, the outer ends of the first adjusting arm 51 and the second adjusting arm 52 (the end away from the shell 1) become larger, and the hinged arm 53 flips outward, thereby enlarging the detection area 6.

[0058] When the first adjusting arm 51 and the second adjusting arm 52 are turned inwardly by the torsion spring, the outer ends of the first adjusting arm 51 and the second adjusting arm 52 become smaller, so that the hinged arm 53 is turned inwardly, so that the detection area 6 becomes smaller.

[0059] Since the hinged arm 53 and the second adjustment arm 52 are in abutting relationship, the wire can be easily inserted into the detection area 6 .

[0060] The present invention is further configured such that the first adjusting arm 51 , the second adjusting arm 52 and the articulated arm 53 are all provided with a photoelectric receiving element 4 .

[0061] The present invention is further configured as follows: the linkage member 54 includes a driving gear 541, a transmission gear 542 and a transmission rod 543, and two sets of transmission gears 542 and transmission rods 543 are provided. The two transmission gears 542 are respectively connected to the two ends of the driving gear 541, and each transmission gear 542 is meshed with a transmission rod 543;

[0062] One end of a transmission rod 543 is connected to the first adjustment arm 51 , and one end of another transmission rod 543 is connected to the second adjustment arm 52 .

[0063] The linkage portion 222 includes linkage teeth, and when the housing 1 moves downward, the linkage teeth push the driving gear 541 to rotate.

[0064] like Figure 3 and Figure 4As shown, when the housing 1 moves downward, the driving gear 541 cooperates with the linkage gear, so that the driving gear 541 rotates clockwise by one rotation unit (about 1 or 2 tooth pitches), and the transmission gears 542 on both sides are coaxially connected with the driving gear 541, so that the transmission gear 542 also rotates clockwise, thereby pushing the transmission rod 543 to move leftward, so that the first adjustment arm 51 and the second adjustment arm 52 flip outward. It plays a role in adjusting the size of the detection area 6.

[0065] The present invention is further configured as follows: the mounting rod 21 includes a rod body 211 and a clamp 212, the clamp 212 is provided in two groups and is respectively located at the upper and lower ends of the rod body 211, and the clamp 212 is used for clamping and cooperating with the sewing machine.

[0066] The fixture 212 may be used as follows: Figure 1 The structure shown may also adopt other commonly used structures, which can be clamped on the sewing machine without affecting the sliding of the housing 1.

[0067] like Figure 1 As shown, it is clamped on the sewing machine by a clamp 212 and then fixed by tightening bolts.

[0068] The present invention is further configured as follows: a controller 7 is provided in the housing 1 , and a buzzer 8 is externally connected to the controller 7 .

[0069] like Figure 6 As shown, the existing photoelectric thread sensor is used. When the continuous infrared pulses decrease or disappear, the controller 7 controls the buzzer 8 to sound.

[0070] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A broken wire detector, characterized in that: The invention comprises a housing (1), a mounting seat (2), a photoelectric emitting element (3), a photoelectric receiving element (4) and an adjusting assembly (5); a mounting opening (11) and a linkage opening (12) are respectively arranged on two opposite sides of the housing (1), and the photoelectric emitting element (3) is arranged in the mounting opening (11); The adjusting component (5) is mounted on the housing (1) and encloses the mounting opening (11) to form a detection area (6); the photoelectric receiving element (4) is arranged on the adjusting component (5); The mounting seat (2) is mounted on the sewing machine, the housing (1) is slidably connected to the mounting seat (2), and the adjustment component (5) is arranged in linkage with the mounting seat (2) via a linkage port (12); When the wire passes through the detection area (6), the wire hangs down from top to bottom, and the swing angle of the wire at the upper end is smaller than the swing angle of the wire at the lower end. When the shell (1) slides downward along the mounting seat (2), the range of the detection area (6) increases; when the shell (1) slides upward along the mounting seat (2), the range of the detection area (6) decreases, thereby preventing the wire from abutting against the groove wall of the detection area. A controller (7) is arranged in the housing (1), and a buzzer (8) is externally connected to the controller (7); The existing photoelectric thread sensor is used, and when the continuous infrared pulses decrease or disappear, the controller (7) controls the buzzer (8) to emit a sound.

2. A broken wire detector according to claim 1, characterized in that: The mounting seat (2) comprises a mounting rod (21) and a limiting ring (22); the mounting rod (21) is fixedly mounted on the sewing machine; sliding grooves are arranged on both sides of the mounting rod (21); and the housing (1) is slidably connected in the sliding grooves; The limiting rings (22) are arranged in multiple groups and are arranged equidistantly along the height direction of the mounting rod (21).

3. A broken wire detector according to claim 2, characterized in that: The limiting ring (22) is rotatably connected to the mounting rod (21) and comprises at least a limiting position and a moving position; The limiting ring (22) is provided with a first connecting portion (221), a linkage portion (222) and a second connecting portion (223) along its circumference; When the limiting ring (22) is located at the limiting position, the limiting ring (22) performs blocking operations on the sliding groove and the adjustment component (5) respectively; When the limiting ring (22) is located at the moving position, the first connecting portion (221) and the second connecting portion (223) are respectively connected to the sliding grooves on both sides, and the linkage portion (222) is aligned with the adjustment assembly (5).

4. A broken wire detector according to claim 3, characterized in that: The mounting rod (21) is provided with a plurality of groups of limit assemblies (23), which are arranged in a one-to-one correspondence with the limit rings (22); The limiting assembly (23) comprises a limiting groove (231), a limiting bead (232) and a limiting spring (233); the limiting bead (232) is slidably connected in the limiting groove (231) via the limiting spring (233); Two groups of limiting holes (224) are arranged on each limiting ring (22).

5. A broken wire detector according to claim 3, characterized in that: The adjustment assembly (5) comprises a first adjustment arm (51), a second adjustment arm (52), a hinged arm (53) and a linkage member (54); the first adjustment arm (51) and the second adjustment arm (52) are rotatably connected to two sides of the installation opening (11) via a torsion spring respectively; one end of the linkage member (54) is linked to the first adjustment arm (51) and the second adjustment arm (52), and the other end is linked to the linkage portion (222); One end of the hinged arm (53) is hinged to the first hinged arm (53), and the other end is disposed in contact with the inner side of the second adjustment arm (52).

6. A broken wire detector according to claim 5, characterized in that: The first adjusting arm (51), the second adjusting arm (52) and the articulated arm (53) are all provided with a photoelectric receiving element (4).

7. A broken wire detector according to claim 5, characterized in that: The linkage member (54) comprises a driving gear (541), a transmission gear (542) and a transmission rod (543); the transmission gear (542) and the transmission rod (543) are each provided with two groups; the two transmission gears (542) are respectively connected to the two ends of the driving gear (541), and each transmission gear (542) is meshed with a transmission rod (543); One end of one transmission rod (543) is connected to the first adjustment arm (51), and one end of the other transmission rod (543) is connected to the second adjustment arm (52).

8. A broken wire detector according to claim 7, characterized in that: The linkage portion (222) comprises linkage teeth, and when the housing (1) moves downward, the linkage teeth push the driving gear (541) to rotate.

9. A broken wire detector according to claim 2, characterized in that: The mounting rod (21) comprises a rod body (211) and a clamp (212). The clamp (212) is arranged in two groups and is respectively located at the upper and lower ends of the rod body (211). The clamp (212) is used for clamping and cooperating with a sewing machine.

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