Detection device for detecting broken slivers of cotton slivers

Abstract

The utility model relates to the technical field of drawing frames, and discloses a detection device for detecting cotton sliver breakage, which comprises a support, the support is provided with a fixing frame, the bottom of the fixing frame is uniformly provided with a plurality of rotating rollers and a plurality of detection assemblies at intervals, a division bar cavity for cotton slivers to pass through is arranged between the adjacent rotating rollers, and the detection assemblies are arranged in the division bar cavity. The detection assembly comprises laser sensors, a control panel is installed in the fixing frame, the laser sensors are electrically connected with the control panel, the multiple laser sensors are located in the multiple division bar cavities in a one-to-one correspondence mode, the laser sensors emit laser beam lines to irradiate the cotton slivers, the laser beam lines can be reflected on the laser sensors on the cotton slivers, and the laser sensors are electrically connected with the control panel. The laser sensor calculates the distance between the laser sensor and the surface of the cotton sliver, whether the cotton sliver is broken or not is judged and fed back to the control panel, the fine broken sliver condition can be found in time, and compared with a traditional mechanical contact type or manual detection mode, the broken sliver detection accuracy and timeliness are greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of drawing frames, and in particular to a detection device for detecting broken cotton slivers. Background Technology

[0002] A drawing frame feeds multiple carded or combed fiber slivers into the drafting section. In the drafting mechanism, upper and lower rollers at different speeds draft the fibers, further straightening and refining them. Simultaneously, a cleaning device removes fly shavings and dust from the rollers and surface. After drafting, the fibers undergo bundling and pressing processes to form a final fiber sliver meeting specific quality requirements.

[0003] For example, a sliver breakage detection device for a drawing frame, disclosed in CN216193001U, includes a support, a rotating roller, a pressing roller, and a controller. One end of the rotating roller is rotatably connected to the support, and the pressing roller swings against the rotating roller. Both are electrically connected to the controller, which is also electrically connected to the drawing frame body. When a sliver breaks, the controller receives a signal and stops the drawing frame body.

[0004] However, in actual use, when there are hard impurities or fiber clumps in the tampons, they may be misjudged as broken strips; and some slightly broken tampons may also not be accurately detected. It is difficult to make precise adjustments according to the different characteristics of tampons, resulting in poor adaptability to certain special types of tampons and inability to accurately detect broken strips. Utility Model Content

[0005] To facilitate accurate detection of broken swabs, a detection device for detecting broken swabs is provided.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A detection device for detecting broken swabs includes a bracket, a fixed frame is mounted on the bracket, a plurality of rotating rollers and a plurality of detection components are evenly spaced at the bottom of the fixed frame, a sliver cavities are provided between adjacent rotating rollers for the swabs to pass through, the detection components include laser sensors, a control panel is installed inside the fixed frame, the laser sensors are electrically connected to the control panel, and the plurality of laser sensors are respectively located in the plurality of sliver cavities.

[0008] By adopting the above technical solution, the laser sensor emits a laser beam to illuminate the cotton swab. The laser beam is reflected on the cotton swab and then onto the laser sensor. The laser sensor calculates the distance from the laser sensor to the surface of the cotton swab, and then determines whether the cotton swab is broken and feeds the result back to the control panel. This method can detect even minor breaks in a timely manner, which greatly improves the accuracy and timeliness of break detection compared to traditional mechanical contact or manual detection methods.

[0009] Optionally, the bracket has a vertical waist-shaped hole, and the fixing bracket slides and adjusts within the waist-shaped hole.

[0010] By adopting the above technical solution, the height of the fixed frame on the support can be adjusted by sliding, thereby adjusting the distance between the tampon and the laser sensor, which can be applied to the detection of tampons of different sizes and improves the applicability of broken tampon detection.

[0011] Optionally, the mounting bracket is provided with a handle, which is fixedly connected to the mounting bracket.

[0012] By adopting the above technical solution, when it is necessary to adjust the height of the fixed frame on the support, the handle can be used to support the fixed frame up and down, making it convenient for operators to adjust the fixed frame.

[0013] Optionally, the laser sensor is located at the center between two adjacent rotating rollers.

[0014] By adopting the above technical solution, it is ensured that the laser beam emitted by the laser sensor is located in the center of the spacer cavity. The laser sensor can detect cotton strips of different diameters passing through the spacer cavity, thus improving the applicability of the detection device.

[0015] Optionally, a fixing member is fixed on the bottom of the fixing frame on the side opposite to the cotton swab feeding direction, and multiple detection components are fixed on the bottom of the fixing member.

[0016] By adopting the above technical solution, if the cotton sliver breaks and becomes entangled on the rotating roller, the entangled cotton sliver will continue to cause the laser sensor to receive the laser beam emitted by itself. Therefore, even if the cotton sliver breaks, it may cause misjudgment. Therefore, a detection component is added to the outside of the rotating roller. Two sets of detection components detect the cotton sliver at the same time. Even if the cotton sliver breaks and becomes entangled on the rotating roller, the other set of detection components can still detect the cotton sliver, thus improving the detection accuracy.

[0017] Optionally, the detection components at the bottom of the fixing member correspond one-to-one with the detection components at the bottom of the fixing frame in the direction of cotton strip feeding.

[0018] By adopting the above technical solution, the two sets of detection components correspond one-to-one, with one set located inside the septum cavity and the other set located outside the septum cavity. Each cotton swab can be detected by the two detection components, thereby improving the detection accuracy of the detection components.

[0019] Optionally, a drive cylinder connected to the control panel is installed inside the fixed frame. A push rod is fixed on the output shaft of the drive cylinder. The push rod is parallel to the distribution direction of the laser sensor, and the distance from the push rod to the bottom of the fixed frame is greater than the length of the output shaft of the drive cylinder. The end of the laser sensor facing away from the spacer cavity is fixedly connected to the push rod.

[0020] By adopting the above technical solution, since dark-colored cotton strips absorb the laser emitted by the laser sensor and have low reflectivity, there is a risk that the laser sensor may not receive the reflected laser beam and make a misjudgment. Therefore, a drive cylinder and a push rod are added. When processing dark-colored cotton strips, the drive cylinder can be opened, and the output shaft of the drive cylinder drives the push rod to move down, thereby reducing the distance between the laser sensor and the dark-colored cotton strip, increasing the reflectivity of the laser sensor on the cotton strip, improving the accuracy of laser sensor detection, and reducing the risk of laser sensor misjudgment.

[0021] Optionally, a vertical connecting shaft is installed on the side of the push rod facing the laser sensor, and the other end of the connecting shaft is connected to the laser sensor.

[0022] By adopting the above technical solution, when the push rod drives the laser sensor to move downward through the connecting shaft, it ensures that the laser sensor can move in the vertical direction of the connecting shaft, and ensures that the laser beam emitted by the laser sensor can vertically irradiate the cotton strip.

[0023] In summary, this application has at least the following beneficial effects:

[0024] 1. The laser sensor calculates the distance from the laser sensor to the surface of the cotton swab, thereby determining whether the cotton swab is broken. Compared with traditional mechanical contact or manual detection methods, this greatly improves the accuracy of broken swab detection.

[0025] 2. Two sets of detection components detect the cotton strip simultaneously. Even if the cotton strip breaks and gets tangled on the rotating roller, the other set of detection components located outside the sliver cavity can still detect the cotton strip, thus improving detection accuracy.

[0026] 3. It can be used with both dark and light-colored tampons, ensuring the detection accuracy of the laser sensor under different tampons and improving the applicability of the detection device. Attached image description:

[0027] Figure 1 This is a schematic diagram of the detection device in Example 1;

[0028] Figure 2 for Figure 1 A sectional view;

[0029] Figure 3 A cross-section of the detection device in Example 2 Figure 1 ;

[0030] Figure 4 A cross-section of the detection device in Example 2 Figure 2 .

[0031] Reference numerals: 1. Bracket; 11. Waist-shaped hole; 2. Fixing bracket; 21. Fixing nut; 22. Handle; 23. Drive cylinder; 24. Push rod; 25. Connecting shaft; 26. Control button; 3. Rotating roller; 31. Spacer cavity; 4. Detection assembly; 41. Laser sensor; 5. Control panel; 6. Detection light; 7. Buzzer; 8. Fixture. Detailed implementation method:

[0032] The following section provides a more detailed description, in conjunction with the accompanying diagrams:

[0033] Example 1

[0034] As attached Figure 1 As shown, a detection device for detecting broken cotton slivers includes a bracket 1, a fixed frame 2, a rotating roller 3, and a detection component 4.

[0035] There are two brackets 1, which are parallel to each other. Each of the two brackets 1 has two vertical through-holes 11 at its upper end.

[0036] The fixed frame 2 is rectangular in shape. Two fixing nuts 21 are installed on each side of the fixed frame 2. The two fixing nuts 21 are located in two oblong holes 11 and are slidably connected to the two brackets 1, so that the height of the fixed frame 2 on the brackets 1 can be adjusted by sliding.

[0037] The rotating roller 3 is cylindrical in shape, and the outer peripheral sidewall of the rotating roller 3 is a smooth curved surface. There are multiple rotating rollers 3, and one end of each rotating roller 3 is rotatably connected to the bottom end of the fixed frame 2. The multiple rotating rollers 3 are evenly spaced on the bottom of the fixed frame 2. A spacer cavity 31 for cotton strips to pass through is opened between adjacent rotating rollers 3. The end of the multiple rotating rollers 3 facing away from the fixed frame 2 is smoothly transitioned. The smooth transition at the end reduces the risk of cotton strips getting hooked on the end surface and getting tangled on the rotating roller 3.

[0038] As attached Figure 2 As shown, there are multiple detection components 4. Multiple rotating rollers 3 are installed at the bottom of the fixed frame 2, and multiple detection components 4 are located above multiple partition cavities 31. A control panel 5 is installed inside the fixed frame 2. The control panel 5 is located above the detection components 4 and is electrically connected to the detection components 4. The detection components 4 include a laser sensor 41.

[0039] The input end of the laser sensor 41 is electrically connected to the control panel 5 and is located inside the fixing frame 2; the output end of the laser sensor 41 emits a laser beam towards the spacer cavity 31 and is located outside the fixing frame 2. There are multiple laser sensors 41, and the multiple laser sensors 41 are located in multiple spacer cavities 31 and are located at the center position between two adjacent rotating rollers 3, for emitting laser beams to the cotton strips in the multiple spacer cavities 31.

[0040] As attached Figure 1 and attached Figure 2 As shown, the mounting bracket 2 is also equipped with a detection light 6 and a buzzer 7. The detection light 6 is located on the side of the mounting bracket 2 facing the direction of cotton swab feeding. There are multiple detection lights 6, which are respectively located above multiple stencil chambers 31. All detection lights 6 are electrically connected to the control panel 5. Each stencil chamber 31 is equipped with a detection light 6. By observing the on / off state or color change of the detection light 6, the operator can intuitively understand the operating status of each stencil chamber 31.

[0041] The buzzer 7 is located on top of the mounting bracket 2 and is electrically connected to the control panel 5. When the tampon breaks, the control system will immediately trigger the buzzer 7 to sound an alarm, so as to provide real-time feedback.

[0042] The advantage of this implementation method is that

[0043] A laser beam is emitted by a laser sensor 41 and irradiates the cotton strip inside the sliver cavity 31. The cotton strip will reflect the laser beam onto the laser sensor 41. After receiving the reflected laser beam, the laser sensor 41 will calculate the distance between the laser sensor 41 and the cotton strip, and then determine whether the cotton strip is broken. Compared with the traditional mechanical contact or manual detection method, the accuracy of broken strip detection is greatly improved.

[0044] Example 2

[0045] As attached Figure 3 As shown, this second embodiment is an improvement on the first embodiment, and the other structures are the same as those in the first embodiment, so they will not be described in detail here.

[0046] A fixing member 8 is fixed on the bottom of the side of the fixing frame 2 facing away from the cotton strip feeding direction. The fixing member 8 is rectangular in shape. Multiple detection components 4 are installed on the bottom of the fixing member 8. The detection components 4 at the bottom of the fixing member 8 correspond one-to-one with the detection components 4 at the bottom of the fixing frame 2 in the cotton strip feeding direction. The detection components 4 at the bottom of the fixing member 8 are used to detect the cotton strip outside the cotton strip cavity 31. Even if the cotton strip breaks and gets wrapped around the rotating roller 3, another set of detection components 4 can still detect the cotton strip, thus improving the detection accuracy.

[0047] As attached Figure 4As shown, a vertical drive cylinder 23 is also installed inside the fixed frame 2. The drive cylinder 23 is electrically connected to the control panel 5. The output shaft of the drive cylinder 23 faces the bottom of the fixed frame 2, and a push rod 24 is installed at the end of the output shaft. The push rod 24 is parallel to the distribution direction of the laser sensor 41 in the fixed frame 2, and the distance from the push rod 24 to the bottom of the fixed frame 2 is greater than the length of the output shaft of the drive cylinder 23, so as to prevent the drive cylinder 23 from driving the output shaft to drive the push rod 24 to abut against the bottom of the fixed frame 2.

[0048] Multiple vertical connecting shafts 25 are installed on the side of the push rod 24 facing the bottom of the fixed frame 2. The number of connecting shafts 25 is equal to the number of laser sensors 41. The multiple connecting shafts 25 are located above the multiple laser sensors 41, and the upper end of the connecting shaft 25 is fixedly connected to the push rod 24. The lower end of the connecting shaft 25 passes through the bottom of the fixed frame 2 and is fixedly connected to the laser sensor 41, ensuring that the laser sensor 41 can move in the vertical direction of the connecting shaft 25, and ensuring that the laser beam emitted by the laser sensor 41 can vertically irradiate the cotton strip.

[0049] A control button 26 is also installed on one side of the fixed frame 2. The control button 26 is electrically connected to the control panel 5. The control button 26 is used to control the opening and closing of the drive cylinder 23. When it is necessary to process the dark cotton strip, press the control button 26 to start the drive cylinder 23. The output shaft of the drive cylinder 23 will drive the push rod 24 to move towards the bottom of the fixed frame 2. Then the push rod 24 will push the laser sensor 41 on the connecting shaft 25 to move down, thereby reducing the distance between the laser sensor 41 and the cotton strip.

[0050] Handles 22 are also installed on both sides of the fixed frame 2. When it is necessary to adjust the height of the fixed frame 2 on the bracket 1, the handles 22 can be used to support the fixed frame 2 up and down, making it convenient for the operator to adjust the fixed frame 2.

[0051] The advantage of this second embodiment is that...

[0052] When processing dark-colored cotton strips, pressing the control button 26 activates the drive cylinder 23. The output shaft of the drive cylinder 23 drives the push rod 24 to move towards the bottom of the fixed frame 2. The push rod 24 then pushes the laser sensor 41 on the connecting shaft 25 downward, thereby reducing the distance between the laser sensor 41 and the cotton strip, increasing the reflectivity of the laser sensor 41 on the cotton strip, improving the accuracy of the laser sensor 41 detection, reducing the risk of misjudgment by the laser sensor 41, and enabling it to be used for processing both dark and light-colored cotton strips, thus improving the applicability of the detection device.

[0053] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of protection claimed in this application.

Claims

1. A detection device for detecting broken cotton swabs, comprising a support (1), characterized in that, The bracket (1) is equipped with a fixed frame (2). The bottom of the fixed frame (2) is evenly spaced with multiple rotating rollers (3) and multiple detection components (4). There is a spacer cavity (31) between adjacent rotating rollers (3) for cotton strips to pass through. The detection component (4) includes a laser sensor (41). The fixed frame (2) is equipped with a control panel (5). The laser sensor (41) is electrically connected to the control panel (5), and the multiple laser sensors (41) are located in the multiple spacer cavities (31) respectively.

2. The detection device for detecting broken cotton slivers according to claim 1, characterized in that, The bracket (1) has a vertical waist-shaped hole (11), and the fixing bracket (2) slides and adjusts within the waist-shaped hole (11).

3. The detection device for detecting broken cotton slivers according to claim 2, characterized in that, The fixed frame (2) is provided with a handle (22), and the handle (22) is fixedly connected to the fixed frame (2).

4. The detection device for detecting broken cotton slivers according to claim 1, characterized in that, The laser sensor (41) is located at the center between two adjacent rotating rollers (3).

5. The detection device for detecting broken cotton slivers according to claim 1, characterized in that, The fixing frame (2) has a fixing member (8) fixed on the bottom of the side facing away from the cotton swab feeding direction, and a plurality of detection components (4) are fixed on the bottom of the fixing member (8).

6. The detection device for detecting broken cotton slivers according to claim 5, characterized in that, The detection components (4) at the bottom of the fixing member (8) correspond one-to-one with the detection components (4) at the bottom of the fixing frame (2) in the direction of cotton strip feeding.

7. The detection device for detecting broken cotton slivers according to claim 1, characterized in that, The fixed frame (2) is equipped with a drive cylinder (23) connected to the control panel (5). A push rod (24) is fixed on the output shaft of the drive cylinder (23). The push rod (24) is parallel to the distribution direction of the laser sensor (41), and the distance from the push rod (24) to the bottom of the fixed frame (2) is greater than the length of the output shaft of the drive cylinder (23). The end of the laser sensor (4) facing away from the partition cavity (31) is fixedly connected to the push rod (24).

8. A detection device for detecting broken cotton slivers according to claim 7, characterized in that, The push rod (24) has a vertical connecting shaft (25) mounted on the side facing the laser sensor (41), and the other end of the connecting shaft (25) is connected to the laser sensor (41).

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