Device for detecting wire knots

Abstract

The present invention discloses a device for detecting wire knots. The wire knot detection device comprises: a rotating wheel, a pivoting arm comprising a pressure section adapted to press a conveyed wire against the rotating wheel, and a sensor for detecting the position of the pivoting arm. When a knot on the conveyed wire passes between the rotating wheel and the pressure section of the pivoting arm, the pivoting arm pivots back and forth once between a first and a second position, thereby enabling the presence of a knot on the conveyed wire to be detected based on the position detection by the sensor. The wire knot detection device in the present invention can identify a knot on the conveyed wire in a timely manner and thus effectively prevent the problem of blockage caused by wire knots.

Description

Cross-reference to related registration

[0001] This application claims the benefit of Chinese patent application No. CN 202411411278.8, which was filed with the State Intellectual Property Administration of the People's Republic of China on October 9, 2024, and whose entire disclosure is hereby incorporated by reference. Background of the invention; Field of the invention

[0002] The present invention relates to a device for detecting wire knots. Description of the related technique

[0003] In current technology, knots easily form during the production and manufacturing of wires. The size of these wire knots is larger than the diameter of the wire, which can lead to problems such as blockages during wire feeding. For example, the wire knots can block wire feedthroughs, preventing the wire from flowing smoothly through the holes and causing production downtime. Summary of the invention

[0004] The present invention was created to overcome or mitigate at least one aspect of the aforementioned disadvantages.

[0005] According to one aspect of the present invention, a device for detecting wire knots is provided. The wire knot detection device comprises: a rotating wheel, a pivoting arm comprising a pressure section adapted to press a fed wire against the rotating wheel, and a sensor for detecting the position of the pivoting arm. When a knot on the fed wire passes between the rotating wheel and the pressure section of the pivoting arm, the pivoting arm pivots once between a first and a second position, thereby enabling the presence of a knot on the fed wire to be detected based on the position detection by the sensor.

[0006] According to an exemplary embodiment of the present invention, the device for wire knot detection further comprises a determining device which determines the presence of a knot on the conveyed wire based on the detection of the position by the sensor.

[0007] According to a further exemplary embodiment of the present invention, the swivel arm remains in the first position throughout the entire conveying of the wire if no knot is present on the conveyed wire, and if the sensor does not detect any pivoting of the swivel arm into the second position during the conveying of the wire, the determining device determines that no knot is present on the conveyed wire.

[0008] According to a further exemplary embodiment of the present invention, if a knot is present on the conveyed wire, the swivel arm is first pivoted from the first position to the second position and then, under the influence of the knot, pivoted from the second position to the first position; and if the sensor detects a pivoting of the swivel arm to the second position during the conveying of the wire, the determining device determines that a knot is present on the conveyed wire.

[0009] According to a further exemplary embodiment of the present invention, the sensor is a trigger switch, and the swivel arm has a trigger section for triggering the trigger switch; when the swivel arm is in the first position, the trigger section is in a non-trigger position in which the trigger switch is not triggered; and when the swivel arm is in the second position, the trigger section is in a trigger position in which the trigger switch is triggered.

[0010] According to a further exemplary embodiment of the present invention, the determining device detects that a knot is present on the conveyed wire if the release switch is triggered during the conveying of the wire; and if the release switch is not triggered during the conveying of the wire, the determining device detects that no knot is present on the conveyed wire.

[0011] According to a further exemplary embodiment of the present invention, the sensor is a photoelectric switch comprising a light emitter and a light receiver opposite the light emitter; and when the light receiver receives the light emitted by the light emitter, the photoelectric switch is triggered.

[0012] According to a further exemplary embodiment of the present invention, in the first position of the swivel arm, the light emitted by the light transmitter is blocked by the release section, thus preventing the light receiver from receiving the light emitted by the light transmitter; and in the second position of the swivel arm, the light emitted by the light transmitter is not blocked by the release section, so that the light receiver can receive the light emitted by the light transmitter.

[0013] According to a further exemplary embodiment of the present invention, the sensor is a photoelectric switch comprising a light emitter and a light receiver opposite the light emitter; and when the light receiver does not receive the light emitted by the light emitter, the photoelectric switch is triggered.

[0014] According to a further exemplary embodiment of the present invention, in the first position of the swivel arm, the light emitted by the light transmitter is not blocked by the release section, so that the light receiver is able to receive the light emitted by the light transmitter; and in the second position of the swivel arm, the light emitted by the light transmitter is blocked by the release section, so that the light receiver is prevented from receiving the light emitted by the light transmitter.

[0015] According to a further exemplary embodiment of the present invention, the sensor is a contact switch; in the first position of the swivel arm, the release section is separated from the contact switch; and in the second position of the swivel arm, the release section presses down the contact switch to trigger the contact switch.

[0016] According to a further exemplary embodiment of the present invention, the swivel arm is located above the rotating wheel and the swivel arm is designed such that it presses the conveyed wire against the rotating wheel by its own weight.

[0017] According to a further exemplary embodiment of the present invention, the wire knot detection device further comprises a mounting plate for mounting the rotating wheel, the swivel arm, and the sensor. The rotating wheel is rotatably mounted on the mounting plate and is rotatable about a first axis perpendicular to the mounting plate; the swivel arm is rotatably mounted on the mounting plate and is able to pivot about a second axis perpendicular to the mounting plate; and the sensor is fixed to the mounting plate.

[0018] According to a further exemplary embodiment of the present invention, the pivot arm further comprises: a first arm rotatably mounted on the mounting plate by means of a pivot shaft; and a second arm fixed at one end of the first arm and extending in a direction inclined to the extension direction of the first arm. The release section is formed at the other end of the first arm, and the push section is fixed to an underside of the second arm or formed integrally with the second arm.

[0019] According to a further exemplary embodiment of the present invention, the pressing section has a smooth contact surface for contacting the wire in order to reduce the frictional force between the pressing section and the wire and to prevent wear of the wire by the pressing section.

[0020] According to a further exemplary embodiment of the present invention, the wire knot detection device further comprises: a first stop pin fixed to the mounting plate to limit the swivel arm in a first end position; and a second stop pin fixed to the mounting plate to limit the swivel arm in a second end position. When the swivel arm is pivoted between the first position and the second position, the swivel arm does not extend beyond either the first or the second end position.

[0021] In the above embodiments according to the present invention, the wire knot detection device can identify a knot on the conveyed wire in a timely manner and thus effectively prevent the problem of a blockage caused by the wire knots. Brief description of the drawings

[0022] The above and other features of the present invention will become clearer when exemplary embodiments thereof are described in detail with reference to the accompanying drawings, in which: Fig. 1 shows an illustrative perspective view of a device for wire knot detection according to an exemplary embodiment of the present invention with a swivel arm in a first position; Fig. 2 shows an illustrative top view of the device for wire knot detection according to an exemplary embodiment of the present invention with the swivel arm in the first position; Fig. 3 shows an illustrative perspective view of the device for wire knot detection according to an exemplary embodiment of the present invention with the swivel arm in a second position; and Fig. Figure 4 shows an illustrative top view of the device for wire knot detection according to an exemplary embodiment of the present invention with the swivel arm in the second position. Detailed description of preferred embodiments of the invention

[0023] The technical solution of the present invention is explained in more detail below with reference to embodiments and in conjunction with the accompanying drawings. In the description, identical or similar drawing symbols denote identical or similar elements. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general concept of the present invention and is not to be understood as a limitation of the present invention.

[0024] The following detailed description also presents numerous specific details for explanatory purposes, in order to provide a thorough understanding of the disclosed embodiments. However, it is obvious that one or more embodiments can also be implemented without these specific details.

[0025] As in the Fig. As shown in Figures 1 to 4, the determining device in the illustrated embodiment detects that a knot 6a is present on the conveyed wire 6 if the release switch is triggered during the conveying of the wire 6. If the release switch is not triggered during the conveying of the wire 6, the determining device detects that no knot 6a is present on the conveyed wire 6.

[0026] As in the Fig. As shown in Figures 1 to 4, the sensor 3 in the illustrated embodiment can be a contactless switch. For example, the sensor 3 is a photoelectric switch comprising a light emitter 31 and a light receiver 32 opposite the light emitter 31. When the light receiver 32 receives the light emitted by the light emitter 31, the photoelectric switch is triggered.

[0027] As in the Fig. As shown in Figures 1 to 4, in the illustrated embodiment, the light emitted by the light source 31 is blocked by the release section 21a when the swivel arm 2 is in the first position, thus preventing the light receiver 32 from receiving the light emitted by the light source 31. When the swivel arm 2 is in the second position, the light emitted by the light source 31 is not blocked by the release section 21a, so that the light receiver 32 can receive the light emitted by the light source 31.

[0028] The present invention is not limited to the illustrated embodiment, however. For example, in a further exemplary embodiment of the present invention, the sensor 3 is a photoelectric switch comprising a light emitter 31 and a light receiver 32 opposite the light emitter 31. If the light receiver 32 does not receive light emitted by the light emitter 31, the photoelectric switch is triggered. In this embodiment, if the pivot arm 2 is in the first position, the light emitted by the light emitter 31 is not blocked by the triggering section 21a, so that the light receiver 32 can receive the light emitted by the light emitter 31. If the pivot arm 2 is in the second position, the light emitted by the light emitter 31 is blocked by the triggering section 21a, thus preventing the light receiver 32 from receiving the light emitted by the light emitter 31.

[0029] Although not shown, in another exemplary embodiment of the present invention the sensor 3 is a contact switch. When the pivot arm 2 is in the first position, the release section 21a is disconnected from the contact switch; when the pivot arm 2 is in the second position, the release section presses down on the contact switch to trigger it.

[0030] As in the Fig. As shown in Figures 1 to 4, in the illustrated embodiment, the pivot arm 2 is located above the rotating wheel 1 and is designed to press the conveyed wire 6 against the rotating wheel 1 by its own weight. However, the present invention is not limited to the illustrated embodiment; for example, the wire knot detection device can include an elastic element that exerts a predetermined pressing force on the pivot arm 2, such that the pivot arm 2 is designed to press the conveyed wire 6 against the rotating wheel 1 under the influence of the elastic element.

[0031] As in the Fig. As shown in Figures 1 to 4, the wire knot detection device in the illustrated embodiment further comprises a mounting plate 4. The mounting plate 4 is used to mount the rotating wheel 1, the swivel arm 2, and the sensor 3. The rotating wheel 1 is rotatably mounted on the mounting plate 4 and is rotatable about a first axis perpendicular to the mounting plate 4. The swivel arm 2 is rotatably mounted on the mounting plate 4 and is able to pivot about a second axis perpendicular to the mounting plate 4. The sensor 3 is fixed to the mounting plate 4.

[0032] As in the Fig. As shown in Figures 1 to 4, the pivot arm 2 in the illustrated embodiment further comprises a first arm 21 and a second arm 22. The first arm 21 is rotatably mounted on the mounting plate 4 by means of a pivot shaft 2a. The second arm 22 is fixed at one end of the first arm 21 and extends in a direction inclined to the extension direction of the first arm 21. The release section 21a is formed at the other end of the first arm 21, and the push section 20 is fixed to a bottom side of the second arm 22 or formed integrally with the second arm 22.

[0033] As in the Fig. As shown in Figures 1 to 4, the pressure section 20 in the illustrated embodiment has a smooth contact surface for contacting the wire 6 in order to reduce the frictional force between the pressure section 20 and the wire 6 and to prevent wear of the wire 6 by the pressure section 20.

[0034] As in the Fig.As shown in Figures 1 to 4, the wire knot detection device in the illustrated embodiment further comprises a first stop pin 51 and a second stop pin 52. The first stop pin 51 is fixed to the mounting plate 4 to limit the swivel arm 2 to a first end position. The second stop pin 52 is fixed to the mounting plate 4 to limit the swivel arm 2 to a second end position. When the swivel arm 2 pivots between the first and second positions, it does not extend beyond either the first or second end position.

[0035] It is understood that those skilled in the art are aware that the above embodiments serve for illustrative purposes and that numerous modifications to the above embodiments can be made by those skilled in the art, and that various features described in various embodiments can be freely combined without any conflict of configuration or principle, and that these variations fall within the scope of protection of the present invention.

[0036] Although the present invention is described in conjunction with the accompanying drawings, the embodiments shown in the accompanying drawings are intended to illustrate the preferred embodiments of the present invention and are not to be construed as limiting the present invention.

[0037] Although several exemplary embodiments have been shown and described, it is clear to those skilled in the art that various changes or modifications can be made to these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

[0038] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "one" or "a" do not exclude more than one. Furthermore, the designation of elements in the claims is not to be interpreted as limiting the scope of protection of the invention. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202411411278.8

[0001]

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