A detection device for reed

Abstract

The invention discloses a detection device for a steel reed, comprising a clamping mechanism, comprising two clamping blocks, the clamping mechanism comprising a screw rod that passes through the two clamping blocks together, a nut that contacts the clamping blocks is mounted on the screw rod, the steel reed is clamped between the two clamping blocks together, and a plurality of rows of teeth are arranged in a single row on the steel reed; a toggle mechanism, comprising a translation block arranged between the two clamping blocks, the translation block is penetrated by the screw rod, the translation block is provided with a rotating motor that drives the translation block to translate along the length direction of the screw rod, the translation block is provided with a toggle tongue that intermittently contacts the row of teeth, the toggle tongue is made of elastic material, a microphone is symmetrically arranged on both sides of the toggle tongue on the translation block, and the vertical distances from the two microphones to the steel reed are equal; an oscilloscope is electrically connected to the translation block and displays the sound frequency collected by the microphone. The invention uses the sound frequency of the toggle tongue hitting the row of teeth to detect whether the gap between the rows of teeth on the steel reed is uniform, and the overall equipment cost is low and the detection accuracy is high.

Description

Technical Field

[0001] The invention relates to the field of textile machinery accessory detection equipment, and in particular to a detection equipment for a reed. Background Art

[0002] The reed is a component of a loom. The warp threads pass through the reed teeth, and its function is to push the weft threads to the weaving mouth. The structure of the reed is similar to that of a comb. After long-term use, the teeth of the reed may become deformed or loose, and the width of each part may be uneven, which is difficult to detect with the naked eye. If visual equipment is used for inspection, the equipment cost is high. Summary of the invention

[0003] The problem to be solved by the present invention is to provide a detection device for a steel reed, which uses the sound frequency of a tongue hitting a row of teeth to detect whether the gap between the rows of teeth on the steel reed is uniform. The overall equipment cost is low and the detection accuracy is high.

[0004] In order to solve the above problems, the present invention provides a detection device for a reed. In order to achieve the above purpose, the technical solution adopted by the present invention to solve the technical problem is:

[0005] A detection device for a reed, comprising: a clamping mechanism, comprising two clamping blocks, the clamping mechanism comprising a screw rod that passes through the two clamping blocks together, the screw rod being equipped with a nut that contacts the clamping blocks, the two clamping blocks clamping the reed together, the reed having a plurality of rows of teeth arranged in a single row; a shifting mechanism, comprising a translation block arranged between the two clamping blocks, the translation block being passed through by the screw rod, the translation block being provided with a rotating motor that drives the translation block to translate along the length direction of the screw rod, the translation block being provided with a shifting tongue that intermittently contacts the row of teeth, the shifting tongue being made of elastic material, a microphone being symmetrically arranged on both sides of the shifting tongue on the translation block, the two microphones being at equal vertical distances from the reed; an oscilloscope, being electrically connected to the translation block and displaying the sound frequency collected by the microphone.

[0006] The beneficial effect of adopting the above technical solution is that when the translation block moves at a uniform speed, the tongue continuously hits and slides over each row of teeth on the steel reed, thereby transmitting a sound signal. The change in audio frequency is used to determine whether the width between each row of teeth is uniform. The detection method has high accuracy, and there is no need to use complex optical equipment. The frequency curve is displayed using an oscilloscope, which is intuitive and has low overall equipment cost. Under uniform movement, the impact sound of the tongue and each row of teeth should be of equal frequency. If the frequency is high locally, it means that the gap between the rows of teeth is too narrow. If the frequency is low, it means that the gap between the rows of teeth is too wide. Using two microphones to collect sound has higher accuracy. The two microphones are also located on both sides of the tongue, which is convenient for collecting more three-dimensional sound. The elasticity of the tongue makes it easy for it to move to each row of teeth, and at the same time it can slide over the edge of each row of teeth without damaging the teeth. This device can not only be used on steel reeds that have been used for a long time to detect whether they are invalid; it can also be used to detect whether the newly produced steel reeds meet the dimensional accuracy requirements, and has a wide range of applications.

[0007] As a further improvement of the present invention, there are two screw rods which are respectively arranged on both sides of the reed, the two screw rods are arranged parallel to each other, and the length direction of the screw rods is parallel to the length direction of the reed.

[0008] The beneficial effects of adopting the above technical solution are: the two screw rods facilitate the clamping block to clamp the reed, the clamping force is relatively symmetrical, and it is convenient to clamp and fix multiple nuts.

[0009] As a further improvement of the present invention, a nut is arranged on the side of the clamping block away from the reed, the nut has an internal thread assembled with the lead screw, a translation block is penetrated by two lead screws, the interior of the translation block is provided with a nut movably connected to the lead screw, the outer wall of the nut has gear teeth in contact with the rotating motor, and the rotating motor is a servo motor.

[0010] The beneficial effect of adopting the above technical solution is that the nut presses the pressing block. Since the nut contacts the gear teeth of the rotating motor, the nut also rotates synchronously when the rotating motor rotates, so that the translation block can be translated along the screw rod.

[0011] As a further improvement of the present invention, the translation block is located above the reed, the tongue is made of rubber, and when the tongue contacts the row of teeth, the side of the tongue facing the reed is a convex surface.

[0012] The beneficial effect of adopting the above technical solution is that the tongue is arc-shaped, and the tongue can slightly change its posture curvature during the collision with the row of teeth, thereby achieving the collision and passing of the tongue with each row of teeth.

[0013] As a further improvement of the present invention, the thickness of the picking tongue is smaller than the smallest gap between adjacent rows of teeth.

[0014] The beneficial effect of adopting the above technical solution is: ensuring that the flick tongue can collide and contact with each row of teeth during the movement.

[0015] As a further improvement of the present invention, the oscilloscope is connected to the translation block via a flexible wire, and the spatial position of the oscilloscope is fixed.

[0016] The beneficial effects of adopting the above technical solution are: the flexible wire can move the translation block while fixing the oscilloscope without affecting the transmission of electrical signals. The oscilloscope is separated from the translation block, reducing the size and weight of the translation block and reducing the burden on the rotating motor.

[0017] As a further improvement of the present invention, the two microphones have the same specifications and are both electrically connected to the oscilloscope, and the distance between the bottom of the tongue and the microphone is no more than 2 cm.

[0018] The beneficial effects of adopting the above technical solution are: the microphones have the same specifications, the number of parts is reduced, they are interchangeable, and the cost is reduced. The distance between the microphones should not be too far to ensure the volume collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a top view of an embodiment of the present invention;

[0021] Figure 2 is a front view of a toggle mechanism according to an embodiment of the present invention;

[0022] Figure 3 is an application schematic diagram of an implementation mode of the present invention;

[0023] 1-screw; 2-pressure block; 3-nut; 4-sliding mechanism; 5-oscilloscope; 6-rotating motor; 7-translation block; 8-tongue; 9-microphone; 10-reed; 11-row of teeth. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with specific embodiments:

[0025] In order to achieve the purpose of the present invention, a detection device for a reed includes: a clamping mechanism including two clamping blocks 2, the clamping mechanism including a screw 1 that passes through the two clamping blocks 2, the screw 1 is equipped with a nut 3 that contacts the clamping block 2, the two clamping blocks 2 jointly clamp a reed 10, and the reed 10 has a plurality of rows of teeth 11 arranged in a single row; a toggle mechanism 4 including a translation block 7 arranged between the two clamping blocks 2, the translation block 7 is penetrated by the screw 1, the translation block 7 is provided with a rotating motor 6 that drives the translation block 7 to translate along the length direction of the screw 1, the translation block 7 is provided with a tongue 8 that intermittently contacts the row of teeth 11, the tongue 8 is made of elastic material, and a microphone 9 is symmetrically arranged on both sides of the tongue 8 of the translation block 7, and the vertical distances between the two microphones 9 and the reed 10 are equal; an oscilloscope 5, which is electrically connected to the translation block 7 and displays the sound frequency collected by the microphone 9.

[0026] The beneficial effect of adopting the above technical solution is that when the translation block moves at a uniform speed, the tongue continuously hits and slides over each row of teeth on the steel reed, thereby transmitting a sound signal. The change in audio frequency is used to determine whether the width between each row of teeth is uniform. The detection method has high accuracy, and there is no need to use complex optical equipment. The frequency curve is displayed using an oscilloscope, which is intuitive and has low overall equipment cost. Under uniform movement, the impact sound of the tongue and each row of teeth should be of equal frequency. If the frequency is high locally, it means that the gap between the rows of teeth is too narrow. If the frequency is low, it means that the gap between the rows of teeth is too wide. Using two microphones to collect sound has higher accuracy. The two microphones are also located on both sides of the tongue, which is convenient for collecting more three-dimensional sound. The elasticity of the tongue makes it easy for it to move to each row of teeth, and at the same time it can slide over the edge of each row of teeth without damaging the teeth. This device can not only be used on steel reeds that have been used for a long time to detect whether they are invalid; it can also be used to detect whether the newly produced steel reeds meet the dimensional accuracy requirements, and has a wide range of applications.

[0027] In some other embodiments of the present invention, there are two screw rods 1 and they are arranged on both sides of the reed 10 respectively. The two screw rods 1 are arranged parallel to each other, and the length direction of the screw rod 1 is parallel to the length direction of the reed 10 .

[0028] The beneficial effects of adopting the above technical solution are: the two screw rods facilitate the clamping block to clamp the reed, the clamping force is relatively symmetrical, and it is convenient to clamp and fix multiple nuts.

[0029] In other embodiments of the present invention, the nut 3 is arranged on the side of the clamping block 2 away from the reed 10, the nut 3 has an internal thread assembled with the lead screw 1, a translation block 7 is penetrated by two lead screws 1, the interior of the translation block 7 includes a nut movably connected to the lead screw 1, the outer wall of the nut has gear teeth in contact with the rotating motor 6, and the rotating motor 6 is a servo motor.

[0030] The beneficial effect of adopting the above technical solution is that the nut presses the pressing block. Since the nut contacts the gear teeth of the rotating motor, the nut also rotates synchronously when the rotating motor rotates, so that the translation block can be translated along the screw rod.

[0031] In some other embodiments of the present invention, the translation block 7 is located above the reed 10, and the tongue 8 is made of rubber. When the tongue 8 contacts the row of teeth 11, the side of the tongue 8 facing the reed 10 is a convex surface.

[0032] The beneficial effect of adopting the above technical solution is that the tongue is arc-shaped, and the tongue can slightly change its posture curvature during the collision with the row of teeth, thereby achieving the collision and passing of the tongue with each row of teeth.

[0033] In some other embodiments of the present invention, the thickness of the tongue 8 is smaller than the smallest gap between adjacent rows of teeth 11 .

[0034] The beneficial effect of adopting the above technical solution is: ensuring that the flick tongue can collide and contact with each row of teeth during the movement.

[0035] In some other embodiments of the present invention, the oscilloscope 5 is connected to the translation block 7 via a flexible wire, and the spatial position of the oscilloscope 5 is fixed.

[0036] The beneficial effects of adopting the above technical solution are: the flexible wire can move the translation block while fixing the oscilloscope without affecting the transmission of electrical signals. The oscilloscope is separated from the translation block, reducing the size and weight of the translation block and reducing the burden on the rotating motor.

[0037] In some other embodiments of the present invention, the two microphones 9 have the same specifications and are both electrically connected to the oscilloscope 5 , and the distance between the bottom of the tongue 8 and the microphone 9 is no more than 2 cm.

[0038] The beneficial effects of adopting the above technical solution are: the microphones have the same specifications, the number of parts is reduced, they are interchangeable, and the cost is reduced. The distance between the microphones should not be too far to ensure the volume collected.

[0039] Figure 3 compared to Figure 1 , mostly showing the shape of the reed 10.

[0040] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for a reed, characterized in that: include: The clamping mechanism includes two clamping blocks, the clamping mechanism includes a screw rod that passes through the two clamping blocks, the screw rod is equipped with a nut that contacts the clamping blocks, and the two clamping blocks clamp a reed together, and the reed has a plurality of teeth arranged in a single row; The toggle mechanism comprises a translation block arranged between two clamping blocks, the translation block is penetrated by a lead screw, the translation block is provided with a rotary motor driving the translation block to translate along the length direction of the lead screw, the translation block is provided with a toggle tongue intermittently contacting with a row of teeth, the toggle tongue is made of elastic material, and a microphone is symmetrically arranged on both sides of the toggle tongue on the translation block, and the vertical distances between the two microphones and the reed are equal; An oscilloscope, electrically connected to the translation block and displaying the sound frequency collected by the microphone, The oscilloscope is connected to the translation block via a flexible wire, and the spatial position of the oscilloscope is fixed. The two microphones have the same specifications and are both electrically connected to the oscilloscope. The distance between the bottom of the tongue and the microphone is no more than 2 cm.

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