Testing method for smoothness of chemical fiber paper tube

Abstract

The present invention discloses a method for detecting the smoothness of chemical fiber paper tubes. The method utilizes a chemical fiber paper tube smoothness detection device comprising a base, a paper tube fixture, a detection probe, a signal amplification mechanism, and a recording board. The highly robust paper tube smoothness detection device can rapidly detect and record the surface smoothness of spinning paper tubes, reducing the requirements for testing personnel. The test results can be retained for a long period of time, facilitating statistical analysis of the test results.

Description

Technical Field

[0001] The invention belongs to the technical field of spinning paper tube detection equipment, and particularly relates to a method for detecting the smoothness of a chemical fiber paper tube. Background Art

[0002] Chemical fiber paper tubes are made by winding and pasting paper together, going through a relatively simple manufacturing process involving winding, pasting, drying, and cutting. However, scratches and unevenness can easily occur during processing. Since high-strength paper tubes are subsequently used for spinning, fine threads can be easily cut off by scratches on the tube surface during high-speed winding and unwinding, leading to production interruptions and the need for rewiring. This process results in significant material waste and delays, impacting product quality. Therefore, after production, high-strength paper tubes must be inspected for surface smoothness to eliminate those with uneven surfaces. Existing methods typically use a micrometer to assess surface smoothness. This method requires the inspector to constantly monitor the micrometer reading, making it prone to omissions. This method is also prone to operator errors and requires repeated measurements. Test results cannot be saved, making it difficult to effectively and promptly detect scratches in specific locations on the tube caused by processing equipment. Summary of the Invention

[0003] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for detecting the smoothness of a chemical fiber paper tube, using a chemical fiber paper tube smoothness detection device, the chemical fiber paper tube smoothness detection device including a base, a paper tube fixture, a detection probe, a signal amplification mechanism, and a recording board,

[0004] The paper tube clamp comprises a chuck tube and a threaded tube connected in sequence, the chuck tube is provided with a conical moving block inside the chuck tube, the conical moving block is connected to a pull rod, the pull rod extends into the threaded tube, a long strip opening is provided on the tube wall of the threaded tube, a handle is inserted in the long strip opening, the handle is fixedly connected to the pull rod, a plurality of arc clamping blocks are provided around the outer periphery of the chuck tube, a plurality of guide blocks are provided inside the chuck tube, the guide blocks correspond to the arc clamping blocks one by one, the guide blocks are fixedly connected to the corresponding arc clamping blocks through the connecting block, a plurality of through holes are provided around the chuck tube for the connecting blocks to pass through, the inner side of the guide block has an inclined surface matching the conical moving block, a limit plate and a first spring are provided inside the chuck tube, the limit plate is fixedly connected to the pull rod, the first spring is sleeved on the pull rod, the limit plate is located between the first spring and the conical moving block, one end of the first spring clamp is fixedly connected to the chuck, and the other end supports the limit plate, a fixing nut is provided on the threaded tube, the fixing nut is fixedly mounted on the base, and the threaded tube is connected to a handwheel;

[0005] The detection probe includes a movable needle and a sleeve. A second spring is installed in the sleeve. The movable needle and the sleeve are both arranged horizontally. One end of the sleeve is fixedly connected to the base through a mounting plate, and the other end is provided with a socket. One end of the movable needle passes through the socket and is inserted into the sleeve and fixedly connected to the movable plate. The other end of the movable needle is provided with a pointed portion.

[0006] The signal amplification mechanism includes a translation rod, a swing rod, a vertical rod and a marker pen. One end of the translation rod is fixedly connected to the movable needle, and the other end is vertically downward and connected to an elastic pressing head. An inclined plate is provided below the elastic pressing head. The inclined plate is fixedly connected to one end of the swing rod. The other end of the swing rod is connected to the marker pen through a telescopic spring. The upper end of the vertical rod is hinged to the swing rod through a rotating shaft, and the rotating shaft is close to the inclined plate. The lower end of the vertical rod is fixed to the base.

[0007] One side of the recording board is clamped with recording paper by a clip, the recording board is installed on the base, and the marker pen points to and contacts the recording paper;

[0008] Pull the handle to put the paper tube on the chuck tube, then release the handle so that the chuck tube fixes the paper tube; turn the handwheel to make the paper tube rotate and move at the same time; the movable needle contacts the surface of the paper tube, and when it hits the scratch on the surface of the paper tube, the movable needle will move slightly, thereby driving the translation rod to move slightly; the slight movement of the translation rod acts on the inclined plate, causing the swing rod to swing; the marker moves over a large range, forming a mark on the recording paper, and at the same time, the recording plate is moved to form a wavy mark on the recording paper. The size of the mark can be used to determine whether the surface of the paper tube is smooth and confirm the location of the scratch.

[0009] As a preferred embodiment of the above technical solution, a slider is fixedly connected to the lower end of the recording plate, a slide rail is provided on the base, the slider is installed on the slide rail, a screw rod is provided above the slide rail, a screw rod pair is provided on the screw rod, the screw rod pair is fixedly connected to the slider, and both ends of the screw rod are rotatably installed on the base through bearing seats.

[0010] As a preferred embodiment of the above technical solution, one end of the screw rod is fixedly connected to a driven synchronous wheel, the threaded tube is connected to a driving synchronous wheel, and the driving synchronous wheel and the driven synchronous wheel are connected by a synchronous belt.

[0011] As a preferred embodiment of the above technical solution, the recording paper is provided with a horizontal scale and a vertical scale.

[0012] As a preferred embodiment of the above technical solution, a baffle is provided on the threaded tube, and the baffle is close to the chuck tube.

[0013] As a preferred embodiment of the above technical solution, the movable needle is covered with a shaft sleeve, and the shaft sleeve is mounted on the base through a connecting plate.

[0014] As a preferred embodiment of the above technical solution, reset springs are respectively provided on both sides of the connecting block, one end of the reset spring is fixedly connected to the connecting block, and the other end is fixedly connected to the chuck tube.

[0015] The beneficial effects of the present invention are: the chemical fiber paper tube smoothness detection method of the present invention can quickly detect and record the surface smoothness of the spinning paper tube, reducing the requirements for detection personnel, and the detection results can be retained for a long time, which is convenient for statistical analysis of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of the present invention;

[0017] Figure 2 It is a partial structural schematic diagram of the present invention from another angle. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0021] like Figure 1-2 As shown, a method for detecting the smoothness of a chemical fiber paper tube is provided, wherein the chemical fiber paper tube smoothness detecting device is used. The chemical fiber paper tube smoothness detecting device comprises a base 1, a paper tube fixture, a detection probe, a signal amplifying mechanism, and a recording board 2.

[0022] The paper tube clamp includes a chuck tube 3 and a threaded tube 4 connected in sequence. A conical moving block 5 is provided inside the chuck tube 3. The conical moving block 5 is connected to a pull rod 6. The pull rod 6 extends into the threaded tube 4. A long strip opening 7 is provided on the tube wall of the threaded tube 4. A handle 8 is inserted into the long strip opening 7. The handle 8 is fixedly connected to the pull rod 6. A plurality of arc-shaped clamping blocks 9 are provided around the outer side of the chuck tube 3. A plurality of guide blocks 10 are provided inside the chuck tube 3. The guide blocks 10 correspond to the arc-shaped clamping blocks 9 one by one. The guide blocks 10 are fixedly connected to the corresponding arc-shaped clamping blocks 9 through the connecting blocks 11. The chuck tube 3 is provided with a plurality of arc-shaped clamping blocks 9 around the outer side. There are several through holes 12 for the connecting block 11 to move through. The inner side of the guide block 10 has an inclined surface 13 that matches the tapered movable block 5. A limit plate 14 and a first spring 15 are provided inside the chuck tube 3. The limit plate 14 is fixedly connected to the pull rod 6. The first spring 15 is sleeved on the pull rod 6. The limit plate 14 is located between the first spring 15 and the tapered movable block 5. One end of the first spring 15 is fixedly connected to the chuck tube 3, and the other end supports the limit plate 14. A fixing nut 16 is provided on the threaded tube 4, which is fixedly mounted on the base 1. The threaded tube 4 is connected to a handwheel 17. The main function of the paper tube clamp is to clamp the paper tube 40. With the cooperation of the handwheel 17, the threaded tube 4, and the fixing nut 16, it can rotate and move at the same time.

[0023] The detection probe includes a movable needle 18 and a sleeve 19, and a second spring 20 is installed in the sleeve 19. The movable needle 18 and the sleeve 19 are both arranged horizontally. One end of the sleeve 19 is fixedly connected to the base 1 through a mounting plate 21, and the other end is provided with a socket 22. One end of the movable needle 18 passes through the socket 22 and is inserted into the sleeve 19 and fixedly connected to a movable plate 23. The other end of the movable needle 18 is provided with a pointed portion 24; the second spring 20 enables the movable needle 18 to always be able to contact the surface of the paper tube 40.

[0024] The signal amplification mechanism includes a translation rod 25, a swing rod 26, a vertical rod 27, and a marker 28. One end of the translation rod 25 is fixedly connected to the movable needle 18, while the other end, facing vertically downward, is connected to an elastic pressing head 42. Below the elastic pressing head 42 is a tilting plate 29, which is fixedly connected to one end of the swing rod 26. The other end of the swing rod 26 is connected to the marker 28 via a telescopic spring 43. The upper end of the vertical rod 27 is hinged to the swing rod 26 via a rotating shaft 30, which is adjacent to the tilting plate 29. The lower end of the vertical rod 27 is fixed to the base 1. The swing rod 26, the vertical rod 27, and the translation rod 25 form a lever. When a pit appears on the surface of the paper tube 40, the translation rod 25 moves to the left, and gravity forces the swing rod 26 downward, causing one end of the marker 28 to move downward. The marker 28, under the action of the telescopic spring 43, remains in contact with the recording plate 2, leaving a scratch mark on the recording plate 2 during its downward movement. When a bulge appears on the surface of the paper tube 40 , the translation rod 25 moves to the right, exerting downward pressure on the tilting plate 29 , causing one end of the marker 28 of the swing rod 26 to move upward, thereby leaving a scratch mark on the recording plate 2 .

[0025] A recording paper 31 is clamped on one side of the recording board 2 by a clip. The recording board 2 is mounted on the base 1 , and the marker pen 28 points to and contacts the recording paper 31 .

[0026] During use, handle 8 is pulled against the elastic force of first spring 15 to fit paper tube 40 onto chuck tube 3. Handle 8 is then released. The restoring force of first spring 15 causes conical movable block 5 to move forward, pushing arc-shaped clamping block 9 outward, thereby tightening and securing paper tube 40 from within. Handwheel 17 is then turned, causing paper tube 40 to rotate and move simultaneously. The movable pin 18 contacts the surface of paper tube 40. When it encounters a scratch on the surface, it moves slightly, causing the translation rod 25 to move slightly. This slight movement of translation rod 25 acts on tilting plate 29, causing swinging rod 26 to swing. Because rotating shaft 30 is close to tilting plate 29, a lever action is created, allowing marker 28 to move over a larger range, thereby forming a mark on recording paper 31. The size of the mark can be used to determine whether the surface of paper tube 40 is smooth.

[0027] Furthermore, a slider 32 is fixedly connected to the lower end of the recording board 2, a slide rail is provided on the base 1, the slider 32 is installed on the slide rail, a screw rod 33 is provided above the slide rail, a screw rod pair is provided on the screw rod 33, the screw rod pair is fixedly connected to the slider 32, and both ends of the screw rod 33 are rotatably installed on the base 1 through bearing seats.

[0028] Furthermore, one end of the screw rod 33 is fixedly connected to a driven synchronous pulley, and the threaded tube 4 is connected to a driving synchronous pulley 34. The driving synchronous pulley 34 and the driven synchronous pulley are connected by a timing belt. In this way, the paper tube 40 and the recording board 2 can be moved synchronously by simply turning the handwheel 17, and the smoothness of the paper tube 40 surface can be recorded on the recording paper 31 using a marker 28.

[0029] Furthermore, the recording paper 31 is provided with horizontal and vertical scales, which can be used to statistically analyze the locations where scratches are likely to occur on the paper tube, making it easier to find the cause.

[0030] Furthermore, the threaded tube 4 is provided with a baffle 35, which is close to the chuck tube 3. After the paper tube 40 is inserted into the chuck tube 3, one end of the paper tube 40 presses against the baffle 35, thereby achieving precise positioning of the paper tube 40. This allows the test data on the recording paper 31 to correspond to the position of the paper tube 40, making it easier to find the cause of the uneven surface of the paper tube.

[0031] Furthermore, a shaft sleeve 38 is sleeved on the movable needle 18, and the shaft sleeve 38 is mounted on the base 1 through a connecting plate. This ensures that the movable needle 18 only moves in the axial direction.

[0032] Furthermore, a return spring 39 is provided on each side of the connecting block 11. One end of the return spring 39 is fixedly connected to the connecting block 11, and the other end is fixedly connected to the chuck tube 3. Thus, when the pull rod 6 pulls back the tapered movable block 5, the return spring 39 can pull the connecting block 11, causing the arc-shaped clamping block 9 to move toward the inside of the chuck tube 3, thereby quickly releasing the paper tube 40.

[0033] It is worth mentioning that the technical features such as springs and tension springs involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement method of these technical features can be selected by conventional means in the field and should not be regarded as the inventive point of this patent. This patent will not be further elaborated.

[0034] The above describes in detail the preferred specific embodiments of the present invention. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of existing technologies should be within the scope of protection determined by the claims.

Claims

1. A method for detecting the smoothness of chemical fiber paper tubes, characterized in that: A chemical fiber paper tube smoothness detection device is used, which includes a base, a paper tube fixture, a detection probe, a signal amplification mechanism, and a recording board. The paper tube clamp comprises a chuck tube and a threaded tube connected in sequence, the chuck tube is provided with a conical moving block inside the chuck tube, the conical moving block is connected to a pull rod, the pull rod extends into the threaded tube, a long strip opening is provided on the tube wall of the threaded tube, a handle is inserted in the long strip opening, the handle is fixedly connected to the pull rod, a plurality of arc clamping blocks are provided around the outer periphery of the chuck tube, a plurality of guide blocks are provided inside the chuck tube, the guide blocks correspond to the arc clamping blocks one by one, the guide blocks are fixedly connected to the corresponding arc clamping blocks through the connecting blocks, a plurality of through holes are provided around the chuck tube for the connecting blocks to pass through movably, the inner side of the guide block has an inclined surface matching the conical moving block, a limit plate and a first spring are provided inside the chuck tube, the limit plate is fixedly connected to the pull rod, the first spring is sleeved on the pull rod, the limit plate is located between the first spring and the conical moving block, one end of the first spring is fixedly connected to the chuck tube, and the other end supports the limit plate, a fixing nut is provided on the threaded tube, the fixing nut is fixedly mounted on the base, and the threaded tube is connected to a handwheel; The detection probe includes a movable needle and a sleeve. A second spring is installed in the sleeve. The movable needle and the sleeve are both arranged horizontally. One end of the sleeve is fixedly connected to the base through a mounting plate, and the other end is provided with a socket. One end of the movable needle passes through the socket and is inserted into the sleeve and fixedly connected to the movable plate. The other end of the movable needle is provided with a pointed portion. The signal amplification mechanism includes a translation rod, a swing rod, a vertical rod and a marker pen. One end of the translation rod is fixedly connected to the movable needle, and the other end is vertically downward and connected to an elastic pressing head. An inclined plate is provided below the elastic pressing head. The inclined plate is fixedly connected to one end of the swing rod. The other end of the swing rod is connected to the marker pen through a telescopic spring. The upper end of the vertical rod is hinged to the swing rod through a rotating shaft, and the rotating shaft is close to the inclined plate. The lower end of the vertical rod is fixed to the base. One side of the recording board is clamped with recording paper by a clip, the recording board is installed on the base, and the marker pen points to and contacts the recording paper; Pull the handle to put the paper tube on the chuck tube, and then release the handle so that the chuck tube fixes and clamps the paper tube; turn the hand wheel to make the paper tube rotate and move at the same time; the movable needle contacts the surface of the paper tube, and when it touches the scratch on the surface of the paper tube, the movable needle will move slightly, thereby driving the translation rod to move slightly; the slight movement of the translation rod acts on the inclined plate, causing the swing rod to swing; the marker moves over a large range to form a mark on the recording paper, and at the same time, the recording plate is moved to form a wavy mark on the recording paper. According to the size of the mark, it can be judged whether the surface of the paper tube is smooth and the location of the scratch can be confirmed. The lower end of the recording plate is fixedly connected to a slider, and a slide rail is provided on the base. The slider is installed on the slide rail. A screw rod is provided above the slide rail, and a screw rod pair is provided on the screw rod. The screw rod pair is fixedly connected to the slider, and both ends of the screw rod are rotatably mounted on the base through bearing seats. Reset springs are provided on both sides of the connecting block, one end of the reset spring is fixedly connected to the connecting block, and the other end is fixedly connected to the chuck tube.

2. The method for detecting smoothness of a chemical fiber paper tube according to claim 1, wherein: One end of the screw rod is fixedly connected to a driven synchronous wheel, the threaded tube is connected to a driving synchronous wheel, and the driving synchronous wheel and the driven synchronous wheel are connected through a synchronous belt.

3. The method for detecting smoothness of a chemical fiber paper tube according to claim 2, wherein: The recording paper is provided with a horizontal ruler scale and a vertical ruler scale.

4. The method for detecting smoothness of a chemical fiber paper tube according to claim 3, wherein: The threaded tube is provided with a baffle, which is close to the chuck tube.

5. The method for detecting smoothness of chemical fiber paper tube according to claim 4, characterized in that: The movable needle is covered with a shaft sleeve, and the shaft sleeve is installed on the base through a connecting plate.

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