A device for detecting the height of pile for a pile cutting machine

Abstract

The utility model discloses a kind of hair height detection devices for cutting pile machine, including cloth face guide mechanism and hair height detection mechanism, the detection end of hair height detection mechanism is located above cloth face guide mechanism, wherein, guide plate is installed at the top of support assembly I, and guide plate is set along cloth face conveying direction;Hair height detection mechanism includes movable parallel link assembly, inductive plate, laser ranging device and support assembly II, laser ranging device and movable parallel link assembly are all installed on support assembly II, inductive plate is installed at the connecting bottom end of movable parallel link assembly, and movable parallel link assembly moves with inductive plate, inductive plate is located above guide plate, there is gap for fabric to pass between inductive plate and guide plate, ranging end of laser ranging device is towards inductive plate, for detecting displacement change or height change of inductive plate.The utility model not only reduces the dependence on artificial experience, improves the accuracy and reliability of hair height detection, and can monitor hair height change in real time, is beneficial to dynamic adjustment cutting parameter, improves product quality consistency and production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of textile machinery technology, and specifically relates to a pile height detection device for a splitting velvet machine. Background Technology

[0002] A velvet splitting machine is a specialized piece of equipment used to precisely split double-layer velvet fabric into two single-layer velvet pieces. Traditional equipment includes a frame, a fabric feeding device, a splitting circular cutter, and A and B side traction rollers. The fabric is fed in by the feeding device, split by the circular cutter, and then pulled out by the traction rollers.

[0003] The core of velvet quality lies in the uniformity of pile height (pile height). However, due to uncertainties such as raw materials, weaving tension, and pretreatment, the thickness (i.e., pile height) of the fabric to be cut fluctuates. In existing technologies, the detection of pile height during the cutting process relies heavily on the operator's experience: firstly, the pile height is estimated manually by visual inspection and touch to preset a fixed circular blade height and traction speed; secondly, the finished product is sampled and offline tested after cutting.

[0004] This method, which relies on human experience, has significant drawbacks: firstly, it is highly subjective and cannot accurately perceive changes in fabric thickness during operation in real time; secondly, it has a delayed response and cannot dynamically adjust parameters at the moment of cutting. This directly leads to unstable cutting quality, easily resulting in defects such as uneven pile length (shading), tearing of the base fabric, or exposure of the base, severely restricting the production efficiency and yield of high-end velvet products.

[0005] Therefore, developing a device for real-time online detection of pile height for velvet splitting machines has become an urgent need in the industry. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a pile height detection device for a velvet splitting machine. This device not only reduces reliance on manual experience and improves the accuracy and reliability of pile height detection, but also allows for real-time monitoring of pile height changes, which facilitates dynamic adjustment of splitting parameters and improves product quality consistency and production efficiency.

[0007] The main technical solution adopted in this utility model is as follows: A pile height detection device for a velvet splitting machine, mounted on a frame between the splitting slice and either the A-side traction roller or the B-side traction roller, is characterized by comprising a fabric guiding mechanism and a pile height detection mechanism, wherein the detection end of the pile height detection mechanism is located above the fabric guiding mechanism. The fabric guiding mechanism includes a guide plate and a support assembly I. The guide plate is installed on the top of the support assembly I and is arranged along the fabric conveying direction so that the fabric is conveyed in contact with the guide plate. The fabric height detection mechanism includes a movable parallel linkage assembly, a sensing plate, a laser rangefinder, and a support assembly II. The laser rangefinder and the movable parallel linkage assembly are both mounted on the support assembly II. The sensing plate is mounted on the connecting bottom end of the movable parallel linkage assembly, and the movable parallel linkage assembly moves with the sensing plate. The sensing plate is located above the guide plate, and there is a gap between the sensing plate and the guide plate for the fabric to pass through. The measuring end of the laser rangefinder faces the sensing plate and is used to detect changes in the displacement or height of the sensing plate.

[0008] Preferably, the support assembly I includes a slide plate I, a plurality of support rods and a plurality of adjustable mounting blocks. The slide plate I is slidably mounted on the frame, the plurality of support rods are vertically mounted on the slide plate I, and the plurality of adjustable mounting blocks are movably mounted on the top of the support rods in a corresponding manner. The bottom surface of the guide plate is mounted on the adjustable mounting blocks.

[0009] Preferably, the sensing plate is parallel to the guide plate.

[0010] Preferably, the support assembly II includes an adjustable support and a connecting frame. The connecting frame is mounted on the connecting end of the adjustable support, and the adjustable support is mounted on the frame for adjusting the position of the connecting frame.

[0011] Preferably, the movable parallel linkage assembly includes two sets of connecting shafts I, two sets of connecting shafts II, two connecting rods I, two connecting rods II, two sets of torsion springs I, and two sets of torsion springs II. The two sets of connecting shafts I are arranged parallel to each other vertically, with one set of connecting shafts I mounted on the support assembly II. The two sets of connecting shafts II are arranged parallel to each other vertically, with one set of connecting shafts II mounted on the support assembly II. The two connecting rods I are arranged parallel to each other between the two sets of connecting shafts I, with both ends of each connecting rod I rotatably connected to the two sets of connecting shafts I. The two sets of connecting rods II are arranged parallel to each other between the two sets of connecting shafts II, with both ends of each connecting rod II rotatably connected to the two sets of connecting shafts II. The two sets of torsion springs I are respectively mounted at both ends of the upper connecting shaft I, and the torque of each set of torsion springs I acts correspondingly on the connecting rod I. The two sets of torsion springs II are respectively mounted at both ends of the upper connecting shaft II, and the torque of each set of torsion springs II acts correspondingly on the connecting rod II, so that the sensing plate is always in contact with the velvet surface of the fabric.

[0012] Preferably, the connecting rod I includes two spherical bearings I, the bearing ends of the two spherical bearings I are respectively mounted on two sets of connecting shafts I, and the rod ends of the two spherical bearings I are connected to a transition rod I, the transition rod I being parallel to the connecting shafts I; the connecting rod II includes two spherical bearings II, the bearing ends of the two spherical bearings II are respectively mounted on two sets of connecting shafts II, the rod ends of the two spherical bearings II being connected to a transition rod II, the transition rod II being parallel to the connecting shafts II; the torque of the torsion spring I acts on the transition rod I, and the torque of the torsion spring II acts on the transition rod II.

[0013] Preferably, the adjustable support includes a slide plate II, a support frame, an adjusting block, and a transition bracket. The slide plate II is slidably mounted on the frame, the support frame is vertically mounted on the slide plate II, the adjusting block is mounted on the support frame and can be adjusted up and down along the support frame, and the transition bracket is mounted on the adjusting block for mounting the connecting frame.

[0014] Preferably, the device further includes a slide block, which is mounted on the frame, and the fabric guiding mechanism and the pile height detection mechanism are slidably mounted on the slide block.

[0015] Beneficial effects: This utility model provides a device for detecting the pile height of a velvet splitting machine, which has the following advantages: (1) This utility model monitors the displacement change of the sensing plate in real time through a laser ranging device, which can accurately capture the small fluctuations in the pile height of the velvet fabric, avoid the error lag and delay caused by traditional manual detection, and improve the accuracy and reliability of pile height detection.

[0016] (2) This utility model has flexible adjustment capability to adapt to different width and pile height requirements. The fabric guiding mechanism and the pile height detection mechanism can be adjusted horizontally along the slide, which is suitable for velvet fabrics of different widths. The tilt angle of the guide plate, the reference gap of the sensing plate and the detection height can all be flexibly adjusted to meet the production needs of various pile height standards and enhance the versatility of the equipment and the adaptability of the production line. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1; Figure 2 This is a schematic diagram of the installation structure in Embodiment 1; Figure 3 This is a schematic diagram of the height detection device in Embodiment 1. Figure 4 This is a schematic diagram of the structure of the movable parallel link assembly in Embodiment 1; In the diagram: 1. Slice 1; 2. A-side traction roller; 3. B-side traction roller; 4. Frame; 5. Slide seat; 6. Fabric guiding mechanism; 6. Guide plate; 6-1. Support assembly I; 6-2. Slide plate I; 6-21. Support rod; 6-22. Adjustable mounting block; 6-23. Groove height detection mechanism; 7. Movable parallel linkage assembly; 7-1. Connecting shaft I; 7-11. Connecting shaft II; 7-12. Connecting rod I; 7-13. Spherical bearing I; 7-131. Adapter rod I; 7-132. Connecting rod II; 7-14. Spherical bearing II; 7-141. Adapter rod II; 7-142. Torsion spring I; 7-15. Torsion spring II; 7-16. Connecting base frame; 7-17. Induction plate; 7-2. Laser rangefinder; 7-3. Support assembly II; 7-4. Adjustable support; 7-41. Connecting frame; 7-42. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application. Example

[0019] like Figure 1-2 As shown, a pile height detection device for a velvet splitting machine is installed on a frame 4 between the splitting slice 1 and the A-side traction roller 2 or the B-side traction roller 3. It includes a fabric guiding mechanism 6 and a pile height detection mechanism 7, with the detection end of the pile height detection mechanism 7 located above the fabric guiding mechanism 6.

[0020] To further improve the applicability of the pile height detection device, this embodiment 1 also provides a slide 5, which is mounted on the frame 4. The fabric guiding mechanism and the pile height detection mechanism are slidably mounted on the slide 5, so that their positions in the horizontal axis can be flexibly adjusted according to the width of the fabric.

[0021] In this embodiment 1, there are at least two sets of fabric guiding mechanism 6 and pile height detection mechanism 7, which are arranged at both ends along the axial direction of the frame 4, and are used to detect the pile height on both sides of the velvet fabric blank.

[0022] like Figure 2 As shown, the fabric guiding mechanism 6 includes a guide plate 6-1 and a support assembly I 6-2. The guide plate 6-1 is installed on the top of the support assembly I 6-2 and is arranged along the fabric conveying direction so that the fabric is conveyed in contact with the guide plate 6-1.

[0023] In this embodiment 1, the support assembly I6-2 may have, but is not limited to, the following structures. For example... Figure 3As shown, the system includes a sliding plate I 6-21, several support rods 6-22, and several adjustable mounting blocks 6-23. The sliding plate I 6-21 is slidably mounted on the frame 4. The support rods 6-22 are vertically mounted on the sliding plate I 6-21. The adjustable mounting blocks 6-23 are movably mounted on the tops of the support rods 6-22 in a corresponding manner. The bottom surface of the guide plate 6-1 is mounted on the adjustable mounting blocks 6-23. The adjustable mounting blocks 6-23 can rotate on the tops of the support rods 6-22 in a plane perpendicular to the horizontal axis through hinges or other movable connections, used to adjust the tilt angle of the guide plate 6-1 to ensure that the fabric adheres to the guide plate 6-1 for conveying.

[0024] like Figure 3 As shown, the pile height detection mechanism 7 includes a movable parallel linkage assembly 7-1, a sensing plate 7-2, a laser rangefinder 7-3, and a support assembly II 7-4. The laser rangefinder 7-3 and the movable parallel linkage assembly 7-1 are both mounted on the support assembly II 7-4. The sensing plate 7-2 is mounted on the connecting bottom end of the movable parallel linkage assembly 7-1, and the movable parallel linkage assembly 7-1 moves with the sensing plate 7-2. The sensing plate 7-2 is located above the guide plate 6-1, and a gap exists between the sensing plate 7-2 and the guide plate 6-1 for fabric passage. The measuring end of the laser rangefinder 7-3 faces the sensing plate 7-2 and is used to detect changes in the displacement or height of the sensing plate 7-2. In this embodiment 1, the sensing plate 7-2 is parallel to the guide plate 6-1, and the distance between the sensing plate 7-2 and the guide plate 6-1 is adjusted according to the actual pile height requirements of the fabric.

[0025] In this embodiment 1, the support assembly II 7-4 includes an adjustable support 7-41 and a connecting frame 7-42. The connecting frame 7-42 is installed on the connecting end of the adjustable support 7-41. The adjustable support 7-41 is installed on the frame 4 and is used to adjust the position of the connecting frame 7-42 (the position includes the height position, the horizontal axial position and the tilt angle).

[0026] In this embodiment 1, the structure of the adjustable support 7-41 can be, but is not limited to, the following structures. For example... Figure 3 As shown, the adjustable support 7-41 includes a sliding plate II 7-411, a support frame 7-412, an adjusting block 7-413, and a transition bracket 7-414. The sliding plate II 7-41 is slidably mounted on the frame 4 (in this embodiment 1, the sliding plate II 7-41 is slidably mounted on the slide block 5). The support frame 7-412 is vertically mounted on the sliding plate II 7-411. The adjusting block 7-413 is mounted on the support frame 7-412 and can be adjusted up and down along the support frame 7-412. The transition bracket 7-414 is mounted on the adjusting block 7-413 and is used to install the connecting frame 7-42.

[0027] In this embodiment 1, as Figure 4 As shown, the movable parallel linkage assembly 7-1 includes two sets of connecting shafts I 7-11, two sets of connecting shafts II 7-12, two connecting rods I 7-13, two connecting rods II 7-14, two sets of torsion springs I 7-15, two sets of torsion springs II 7-16, and a connecting base 7-17. The two sets of connecting shafts I 7-11 are arranged parallel to each other vertically, with one set of connecting shafts I 7-11 mounted on the support assembly II 7-4. The two sets of connecting shafts II 7-12 are arranged parallel to each other vertically, with one set of connecting shafts II 7-12 mounted on the support assembly II 7-4. The two connecting rods I 7-13 are arranged parallel to each other between the two sets of connecting shafts I 7-11. Both ends of each connecting rod I 7-13 are rotatably connected to the two sets of connecting shafts I 7-11. Linkage rods II7-14 are arranged parallel to each other between two sets of connecting shafts II7-12. The two ends of each link II7-14 are rotatably connected to the two sets of connecting shafts II7-12. Two sets of torsion springs I7-15 are respectively installed at both ends of the upper connecting shaft I7-11, and the torque of each set of torsion springs I7-15 acts on the link I7-13. Two sets of torsion springs II7-16 are respectively installed at both ends of the upper connecting shaft II7-12, and the torque of each set of torsion springs II7-16 acts on the link II7-14. The connecting base 7-17 is installed on the lower connecting shafts I7-11 and II7-12 and is used to install the sensing plate 7-2 so that the sensing plate 7-2 is always in contact with the velvet surface of the fabric.

[0028] In this embodiment 1, the structure of connecting rod I and connecting rod II 7-14 can be an integral structure, or it can be the following structure.

[0029] like Figure 4 As shown, connecting rod I7-13 includes two spherical bearings I7-131, the bearing ends of which are respectively mounted on two sets of connecting shafts I7-11. The rod ends of both spherical bearings I7-131 are connected to adapter rods I7-132, which are parallel to the connecting shafts I7-11. Connecting rod II7-14 includes two spherical bearings II7-141, the bearing ends of which are respectively mounted on two sets of connecting shafts I7-11. On the connecting shaft II 7-12, the rod ends of the two spherical bearings II 7-141 are connected to the adapter rod II 7-142, which is parallel to the connecting shaft II 7-12. The torque of the torsion spring I 7-15 acts on the adapter rod I 7-132 and the connecting frame 7-42 respectively, and the torque of the torsion spring II 7-16 acts on the adapter rod II 7-142 and the connecting frame 7-42 respectively, so that the sensing plate 7-2 is always in contact with the velvet surface of the fabric.

[0030] In this invention, the singleness and accuracy of the motion direction are ensured by setting up a movable parallel linkage assembly 7-1. This assembly, through the mechanical structure of two sets of parallel linkages (linkage I, linkage II, link I, link II), strictly restricts the multi-degree-of-freedom motion of the sensing plate 7-2 to the vertical direction. This means that the sensing plate can only move vertically in parallel, and cannot tilt or sway forward, backward, or left or right. This is the mechanical basis for achieving high-precision measurement.

[0031] Meanwhile, in this invention, torsion springs I7-15 and II7-16 provide a slight, stable torque to the entire linkage mechanism, thereby providing a stable reference and automatically resetting. Specifically: (1) Preload: Torsion spring I 7-15 and torsion spring II 7-16 enable the sensing plate to adhere to the pile surface of the velvet fabric with a constant and gentle force, which will not crush the pile surface and ensure that the sensing plate is in continuous contact with the fabric surface.

[0032] (2) Automatic reset: When the height of the sensor plate 7-2 moves due to excessive height or excessive height, once the height of the sensor plate returns to normal, the entire linkage mechanism can drive the sensor plate to return smoothly to the initial reference position under the action of the torsion spring, so as to prepare for the next detection.

[0033] The working principle of this utility model is as follows: First, adjust the positions of the fabric guiding mechanism 6 and the pile height detection mechanism 7 according to the width of the velvet fabric. Then, adjust the gap between the guide plate 6-1 and the sensing plate 7-2 according to the standard pile height requirements, and simultaneously set the motion reference point of the sensing plate 7-2. The zero position of the motion reference point is set according to the required pile height. The sensing plate remains in contact with the velvet pile under the action of the torsion spring: when the velvet pile is too high, the sensing plate is lifted; when it is too low, it is pressed down by the torsion spring. The continuous action of the torsion spring ensures that the sensing plate remains firmly attached to the velvet pile surface.

[0034] After the velvet fabric is slit, side A and side B are respectively pulled and conveyed by traction roller 2 on side A and traction roller 3 on side B. Before entering traction roller 2 on side A, the velvet fabric on side A travels along guide plate 6-1, with its velvet side simultaneously adhering to induction plate 7-2. When the velvet pile height exceeds the standard range (too high or too low), the sizing velvet fabric, due to its certain rigidity and resistance to collapsing, will push induction plate 7-2 to move. This movement is maintained in parallel motion under the constraint of movable parallel linkage assembly 7-1. At this time, the detection end of laser ranging device 7-3 monitors the displacement distance of induction plate 7-2 in real time, thereby continuously detecting the change in pile height after slitting and feeding the data back to the control system, providing a basis for timely adjustment of slitting parameters.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model.

Claims

1. A device for detecting the height of the hair of a splitting machine, which is arranged on the frame between the splitting piece and the A-side or B-side traction roller, characterized in that, It includes a fabric guiding mechanism and a pile height detection mechanism, wherein the detection end of the pile height detection mechanism is located above the fabric guiding mechanism. The fabric guiding mechanism includes a guide plate and a support assembly I. The guide plate is installed on the top of the support assembly I and is arranged along the fabric conveying direction so that the fabric is conveyed in contact with the guide plate. The fabric height detection mechanism includes a movable parallel linkage assembly, a sensing plate, a laser rangefinder, and a support assembly II. The laser rangefinder and the movable parallel linkage assembly are both mounted on the support assembly II. The sensing plate is mounted on the connecting bottom end of the movable parallel linkage assembly, and the movable parallel linkage assembly moves with the sensing plate. The sensing plate is located above the guide plate, and there is a gap between the sensing plate and the guide plate for the fabric to pass through. The measuring end of the laser rangefinder faces the sensing plate and is used to detect changes in the displacement or height of the sensing plate.

2. The pile height detecting device for a slitting and cutting machine according to claim 1, wherein The support assembly I includes a slide plate I, several support rods, and several adjustable mounting blocks. The slide plate I is slidably mounted on the frame, the several support rods are vertically mounted on the slide plate I, and the several adjustable mounting blocks are movably mounted on the top of the support rods in a corresponding manner. The bottom surface of the guide plate is mounted on the adjustable mounting blocks.

3. The hair height detecting device for a roving slitting machine according to claim 1, wherein The sensing plate is parallel to the guide plate.

4. The pile height detecting device for a slitting machine according to claim 1, wherein The support assembly II includes an adjustable support and a connecting frame. The connecting frame is installed on the connecting end of the adjustable support, and the adjustable support is installed on the frame for adjusting the position of the connecting frame.

5. The pile height detecting device for a slitting machine according to claim 1, wherein The movable parallel linkage assembly includes two sets of connecting shafts I, two sets of connecting shafts II, two connecting rods I, two connecting rods II, two sets of torsion springs I, and two sets of torsion springs II. The two sets of connecting shafts I are arranged parallel to each other vertically, with one set of connecting shafts I mounted on the support assembly II. The two sets of connecting shafts II are arranged parallel to each other vertically, with one set of connecting shafts II mounted on the support assembly II. The two connecting rods I are arranged parallel to each other between the two sets of connecting shafts I, with both ends of each connecting rod I rotatably connected to the two sets of connecting shafts I. The two sets of connecting rods II are arranged parallel to each other between the two sets of connecting shafts II, with both ends of each connecting rod II rotatably connected to the two sets of connecting shafts II. The two sets of torsion springs I are respectively mounted at both ends of the upper connecting shaft I, and the torque of each set of torsion springs I acts correspondingly on the connecting rod I. The two sets of torsion springs II are respectively mounted at both ends of the upper connecting shaft II, and the torque of each set of torsion springs II acts correspondingly on the connecting rod II, ensuring that the sensing plate is always in contact with the velvet surface of the fabric.

6. The pile height detecting device for a slitting machine according to claim 5, wherein The connecting rod I includes two spherical bearings I, the bearing ends of the two spherical bearings I are respectively mounted on two sets of connecting shafts I, and the rod ends of the two spherical bearings I are connected to the adapter rod I. The adapter rod I is parallel to the connecting shaft I. The connecting rod II includes two spherical bearings II, the bearing ends of the two spherical bearings II are respectively mounted on two sets of connecting shafts II, and the rod ends of the two spherical bearings II are connected to the adapter rod II. The adapter rod II is parallel to the connecting shaft II. The torsion force of torsion spring I acts on adapter rod I, and the torsion force of torsion spring II acts on adapter rod II.

7. The pile height detection device for a velvet splitting machine according to claim 4, characterized in that, The adjustable support includes a slide plate II, a support frame, an adjusting block, and a transition bracket. The slide plate II is slidably mounted on the frame, the support frame is vertically mounted on the slide plate II, the adjusting block is mounted on the support frame and can be adjusted up and down along the support frame, and the transition bracket is mounted on the adjusting block and is used to install the connecting frame.

8. The pile height detecting device for a slitting machine according to claim 1, wherein It also includes a slide, which is mounted on the frame, and the fabric guiding mechanism and the pile height detection mechanism are slidably mounted on the slide.

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