A needle breakage angle detection device for a needle plate

Abstract

This invention discloses a device for detecting the breakage angle of a steel needle in a needle plate. The device includes a support, a clamping assembly for clamping the steel needle, an adjusting assembly for adjusting the opening and closing of the clamping assembly, a pushing assembly for bending the steel needle, and a detection assembly for detecting the bending angle of the steel needle. This invention uses the clamping assembly to clamp and fix the steel needle, and then the pushing assembly applies a bending force to the steel needle. Combined with the detection assembly, this allows for accurate detection of the steel needle breakage angle, solving the problem that existing detection devices cannot quantitatively evaluate the performance of the steel needle.

Description

Technical Field

[0001] This invention relates to the field of textile machinery component testing technology, and in particular to a device for detecting the breakage angle of steel needles in needle plates. Background Technology

[0002] The needle plate is a key clamping component of a textile printing and dyeing tenter frame, consisting of a base plate and steel needles with an interference fit. During operation, the steel needles must withstand the weft tension of the fabric, resulting in elastic deformation, and are cyclically used in a high-temperature drying chamber at approximately 200℃. Therefore, they require good tensile strength, resistance to deformation, and high-temperature stability to prevent snagging and poor needle mounting. The performance of the steel needles directly determines the quality of the needle plate and the stability of printing and dyeing production. Currently, there is no dedicated testing equipment in the industry to simulate actual working conditions and test the stress and bending characteristics of the steel needles. It is impossible to quantitatively evaluate the breakage angle and dimensional stability of the steel needles, making it difficult to meet the quality control requirements for incoming steel needles. Therefore, there is an urgent need for a precise needle plate steel needle breakage angle detection device. Summary of the Invention

[0003] The purpose of this invention is to provide a device for detecting the breakage angle of steel needles in a needle plate.

[0004] The innovation of this invention lies in clamping and fixing the steel needle with a clamping component, and then applying a bending force to the steel needle with a pushing component. In conjunction with the detection component, the breakage angle of the steel needle can be accurately detected, solving the problem that existing detection devices cannot quantitatively evaluate the performance of the steel needle.

[0005] To achieve the aforementioned objectives, the technical solution of this invention is: a needle plate steel needle breakage angle detection device, comprising a bracket, a clamping assembly for clamping the steel needle on the bracket, an adjusting assembly for adjusting the opening and closing of the clamping assembly on the bracket, a pushing assembly for bending the steel needle, and a detection assembly for detecting the bending angle of the steel needle. By clamping and fixing the steel needle with the clamping assembly, and then applying a bending force to the steel needle with the pushing assembly, combined with the detection assembly, the steel needle breakage angle can be accurately detected, solving the problem that existing detection devices cannot quantitatively evaluate the performance of the steel needle.

[0006] Furthermore, the clamping assembly includes two clamping blocks. By using two clamping blocks to form a clamping structure, uniform bending force is ensured, improving the accuracy and reliability of the bending angle detection results.

[0007] Furthermore, the clamping block is divided into a fixed clamping block and a movable clamping block. The fixed clamping block is fixedly arranged, and the movable clamping block is adjusted for movement via an adjusting assembly. The adjusting assembly includes a slider connected to the movable clamping block, and the bracket is provided with a slide rail for the slider to move. An adjusting screw is threaded onto the bracket, and the rotation of the adjusting screw drives the slider to move. By using the fixed clamping block and the movable clamping block in conjunction with the slider, slide rail, and adjusting screw, the clamping distance can be flexibly adjusted to accommodate steel needles of different specifications, ensuring firm clamping and precise adjustment, thus improving the versatility of the device.

[0008] Furthermore, the two clamping blocks are provided with insertion areas for inserting nickel needles on both sides close to each other. By setting a tweezer insertion area between the two clamping blocks, the placement and removal of steel needles are more convenient, avoiding collision damage during needle installation and improving the efficiency of the detection operation.

[0009] Furthermore, the pushing assembly includes a push block located at the end of the fixed clamping block, a turntable that drives the push block to rotate, a turbine connected to the turntable, and a worm gear that drives the turbine to rotate. By employing a worm gear drive, the rotation speed of the push block is reduced, the bending process is slow and smooth, it is easier to observe the steel needle breakage, the angle reading is more intuitive and accurate, and the reliability of the detection is improved.

[0010] Furthermore, the detection component includes a pointer connected to the push block and a dial on the support for measuring the pointer's rotation. By cooperating with the dial on the support, the bending angle of the steel needle can be displayed in real time and intuitively, allowing direct reading of the bending angle value and quantification of the detection data.

[0011] Furthermore, the pusher block has a 90-degree sector-shaped structure. By setting the pusher block to a 90-degree sector-shaped structure, one of its right-angled sides is aligned with the 0 mark of the dial indicator, and the other right-angled side is in close contact with the clamped steel needle, ensuring accurate and reliable angle readings.

[0012] Furthermore, the support is equipped with a protective cover, which has a window for placing steel needles, and the window has an openable panel. By installing a protective cover with an openable panel on the support, the safety of the device is significantly improved without affecting needle loading and testing operations.

[0013] Furthermore, each of the adjusting screws or worm gears is equipped with an adjusting handle at its end. By providing adjusting handles at the ends of the adjusting screws and worm gears, precise control of clamping and bending / pushing adjustments is achieved, improving the ease of operation of the device.

[0014] The beneficial effects of this invention are: by clamping the steel needle with the clamping assembly, and then applying a bending force to the steel needle with the pushing assembly, and in conjunction with the detection assembly, the steel needle breakage angle can be accurately detected, thus solving the problem that existing detection devices cannot quantitatively evaluate the performance of steel needles. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention.

[0016] Figure 2 This is the left view of the present invention.

[0017] Figure 3 This is a top view of the present invention.

[0018] Figure 4 This is a partial schematic diagram of the detection component of the present invention.

[0019] Figure 5 This is a schematic diagram of the protective cover structure of the present invention. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will now be clearly and completely described in conjunction with the accompanying drawings.

[0021] Example: Figure 1 , 2 A needle plate steel needle breakage angle detection device, shown in figures 3, 4, and 5, includes a bracket 1. The bracket 1 has a clamping assembly 2 for clamping the steel needle, an adjusting assembly 3 for adjusting the opening and closing of the clamping assembly 2, a pushing assembly 4 for pushing the steel needle to bend, and a detection assembly 5 for detecting the bending angle of the steel needle. The clamping assembly 2 includes two clamping blocks 21. The clamping blocks 21 are divided into a fixed clamping block 211 and a movable clamping block 212. The fixed clamping block 211 is fixedly arranged, and the movable clamping block 212 is adjusted and moved by the adjusting assembly 3. The adjusting assembly 3 includes a slider 31 connected to the movable clamping block 212. The bracket 1 has a slide rail 11 for moving the slider 31, and an adjusting screw 12 is threaded onto the bracket 1. Rotation of the adjusting screw 12 drives the slider 31 to move. The two clamping blocks 21 are close to each other, and insertion areas 22 for inserting nickel are provided on both sides. The pushing assembly 4 includes a push block 41 located at the end of the fixed clamping block 21, a turntable 42 that drives the push block 41 to rotate, a turbine 43 connected to the turntable 42, and a worm gear 44 that drives the turbine 43 to rotate. The detection assembly 5 includes a pointer 51 connected to the push block 41 and a dial gauge 52 located on the bracket 1 for measuring the rotation of the pointer 51. The push block 41 has a 90-degree sector-shaped structure. The bracket 1 is provided with a protective cover 13, which has a window 14 for placing steel needles, and an openable window plate 15 at the window 14. An adjusting handle 16 is provided at the end of the adjusting screw 12 or the worm gear 44.

[0022] Working principle: During testing, first open the window plate 15 of the window 14 on the protective cover 13, and use a nickel to insert the steel needle into the clamping position of the insertion area 22; rotate the adjusting handle 16 of the adjusting screw 12 to move the slider 31 along the slide rail 11, driving the moving clamping block 212 to move closer to the fixed clamping block 211, clamping and fixing the tail of the steel needle, and then close the window plate 15. Rotate the adjusting handle 16 of the worm gear 44 to drive the turbine 43 and the turntable 42 to rotate, driving the 90° sector-shaped push block 41 to push the tip of the steel needle at a uniform speed to bend; at the moment the steel needle breaks, the pointer 51 on the push block 41 points to the corresponding scale on the turntable 52, which is the steel needle breakage angle.

[0023] In summary, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A device for detecting the breakage angle of steel needles in a needle plate, characterized in that, The device includes a bracket, which is provided with a clamping assembly for clamping a steel needle, an adjusting assembly for adjusting the opening and closing of the clamping assembly, a pushing assembly for pushing the steel needle to bend, and a detection assembly for detecting the bending angle of the steel needle.

2. The needle plate steel needle breakage angle detection device according to claim 1, characterized in that, The clamping assembly includes two clamping blocks.

3. The needle plate steel needle breakage angle detection device according to claim 2, characterized in that, The clamping block is divided into a fixed clamping block and a movable clamping block. The fixed clamping block is fixedly arranged, and the movable clamping block is adjusted and moved by an adjusting component. The adjusting component includes a slider connected to the movable clamping block. The bracket is provided with a slide for the slider to move, and an adjusting screw is threaded onto the bracket. The rotation of the adjusting screw drives the slider to move.

4. The needle plate steel needle breakage angle detection device according to claim 3, characterized in that, The two clamping blocks are close to each other and have insertion areas on both sides for inserting nickel.

5. The needle plate steel needle breakage angle detection device according to claim 2, characterized in that, The pushing assembly includes a push block located at the end of the fixed clamping block, a turntable that drives the push block to rotate, a turbine connected to the turntable, and a worm gear that drives the turbine to rotate.

6. The needle plate steel needle breakage angle detection device according to claim 5, characterized in that, The detection component includes a pointer connected to the pusher block and a dial gauge located on the support for measuring the rotation of the pointer.

7. The needle plate steel needle breakage angle detection device according to claim 5, characterized in that, The pusher block has a 90-degree sector-shaped structure.

8. The needle plate steel needle breakage angle detection device according to claim 1, characterized in that, The bracket is equipped with a protective cover, the protective cover has a window for placing steel needles, and the window has an openable panel.

9. The needle plate steel needle breakage angle detection device according to claim 5, characterized in that, The adjusting screw or worm gear is equipped with an adjusting handle at its end.

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