Cloth inspecting device with automatic weighing and winding mechanism

Abstract

The utility model relates to cloth testing device technical field, concretely relates to a cloth testing device with automatic weighing and winding mechanism, include: weighing mechanism has two groups of symmetrical settings for supporting cloth winding drum's clamping plate, the clamping plate has the tapered block, the tapered block and cloth winding drum's inner wall butt joint, the weighing mechanism still is provided with the pressure sensing spare for detecting cloth winding drum weight, the weighing mechanism still is provided with the elastic transmission assembly for buffering the impact load produced when cloth winding and transmitting the overall load of winding drum smoothly to the pressure sensing spare and completing weight collection. Buffer winding impact load through the elastic transmission assembly, match the clamping plate and tapered block of opposite adjustable adapt to a variety of winding drum inner diameter, while setting bilateral synchronous transmission mechanism guarantees cloth roll winding end surface smooth, solves the gravity sensor of cloth testing device long -term impact measurement misalignment, winding drum specification adaptation single and two sides winding speed inconsistency's technical problem.

Description

Technical Field

[0001] This utility model relates to the technical field of fabric inspection devices, specifically to a fabric inspection device with an automatic weighing and winding mechanism. Background Technology

[0002] After the fabric is woven, it needs to go through a light-transmitting fabric inspection process to detect defects on the fabric surface. Then, the inspected fabric is rolled into rolls, and subsequent rolls are divided and cut according to the weight of each roll.

[0003] Existing fabric inspection and winding equipment with weighing functions typically places the gravity sensor directly below the pressure plate at the bottom of the winding roller. The entire weight of the fabric roll and roller shaft directly and rigidly acts on the sensing element. Over time, the impact load generated by the start and stop of the fabric winding can easily cause zero-point drift of the sensor and a decrease in measurement accuracy. At the same time, the existing winding clamping structure is only compatible with fabric rolls of a single inner diameter. When changing to paper rolls of different inner diameters during production, the entire clamping bracket needs to be disassembled and reassembled, which is time-consuming and difficult to adapt to rapid production changes for multiple roll specifications. Most winding drives use a single-sided transmission structure, and the two sides of the roll rotate asynchronously, which can easily result in one side of the fabric being loose and the other tight, and unevenness of the fabric roll end face.

[0004] Chinese Patent No. CN207016209U discloses an automatic weighing and winding mechanism for a fabric inspection machine. This device relies on a pressure plate to support the entire winding roller and directly transmits the pressure to the gravity sensor. It can only realize the basic functions of weight acquisition and winding stop. It does not have an elastic buffer force transmission structure, does not adapt to the symmetrical conical clamping structure of multi-diameter drums, and does not have a winding transmission component that rotates synchronously on both sides. It is difficult to solve many production defects such as sensor failure due to impact, poor drum versatility, and uneven winding end face. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a fabric inspection device with an automatic weighing and winding mechanism. It uses an elastic transmission component to buffer the impact load during winding, and is equipped with adjustable clamps and conical blocks to adapt to various roll inner diameters. At the same time, a double-sided synchronous transmission mechanism is set to ensure that the winding end face of the fabric roll is flat. This solves the technical problems of inaccurate measurement of gravity sensor due to long-term impact, limited roll specification compatibility, and inconsistent winding speed on both sides of the fabric inspection device.

[0006] To address the problems of existing technologies, this utility model provides a fabric inspection device with an automatic weighing and winding mechanism, including a frame and a light transmission detection device. The light transmission detection device is obliquely mounted on the upper side of the frame. It also includes: a weighing mechanism with a pressure sensor for detecting the weight of the fabric roll; the weighing mechanism further includes an elastic transmission component for buffering the impact load generated during fabric winding and smoothly transferring the overall load of the roll to the pressure sensor for weight acquisition; a clamping mechanism with two symmetrically arranged clamping plates for supporting the fabric roll, each clamping plate having a conical block that abuts against the inner wall of the fabric roll to accommodate fabric rolls with different inner diameters; the clamping mechanism also includes support plates for supporting the clamping plates; the clamping mechanism further includes a driving component for driving the support plates to linearly displace, the support plates being symmetrically arranged on the driving component; and a transmission mechanism for synchronously driving the clamping plates on both sides of the fabric roll to rotate at the same speed.

[0007] Preferably, the elastic transmission component includes a support roller and a spring; the support roller is horizontally positioned directly below the clamping plate; the spring is vertically positioned on the side of the frame near the end of the support roller, and the lower end of the spring is connected to the pressure-receiving surface of the pressure sensor; after the fabric winding thickness increases and the support roller is pressed down, the load is elastically buffered by the spring and then transmitted to the pressure sensor, which is used to weaken the instantaneous impact when winding starts and stops.

[0008] Preferably, each end of the support roller is provided with a guide assembly, the guide assembly including a guide plate and a guide rail; the guide plate is rotatably connected to both ends of the support roller, and the guide plate is fixedly connected to the upper end of the spring component; the guide rail is fixedly connected to the side of the frame facing the guide plate; the pressure sensor is independently disposed on the frame separate from the guide rail; the guide plate and the guide rail slide together to form a sliding guide pair, which is used to limit the support roller to move only in a vertical straight line when it is pressed up and down.

[0009] Preferably, the drive assembly includes a guide rod, a screw, and a first servo motor; the guide rod is fixedly connected to the frame, and the guide rod and the support plate are slidably engaged to form a sliding guide pair, which is used to limit the support plate to rotate synchronously with the screw; the screw is rotatably disposed on the side of the frame near the guide rod, and the screw is threadedly connected to the support plate; the first servo motor is fixedly installed in the frame, and the output end of the first servo motor is fixedly connected to one end of the screw.

[0010] Preferably, the screw has screw grooves with opposite thread directions at both ends, which drive two symmetrically arranged support plates to move towards or away from each other along the screw. The first servo motor drives the screw to rotate, which synchronously drives the two support plates to move closer together or further apart, so as to ensure that the drum clamping center coincides with the center line of the equipment.

[0011] Preferably, the transmission mechanism includes a telescopic rod, a synchronization component, and a second servo motor; the telescopic rod is rotatably mounted on the frame; the synchronization component is rotatably mounted inside the frame, the telescopic rod passes through the center of the large synchronization wheel of the synchronization component and is fixedly connected to it, and the synchronization component is used to evenly transmit rotational power to the telescopic rods on both sides; the second servo motor is fixedly installed on the side of the frame facing the synchronization component, and the output end of the second servo motor is fixedly connected to the working end of the synchronization component.

[0012] Preferably, the synchronization component consists of a large synchronous belt and two large synchronous pulleys, as well as a small synchronous belt and two small synchronous pulleys; both ends of the large synchronous belt are respectively engaged with the two large synchronous pulleys, and both ends of the small synchronous belt are respectively engaged with the two small synchronous pulleys; the small synchronous pulley on one side of the synchronization component is fixedly connected to the output end of the second servo motor.

[0013] Preferably, the telescopic rod consists of an inner rod and an outer rod that are interlocked and can slide relative to each other. The cross-sections of the inner rod and the outer rod are both rectangular. The inner rod of the telescopic rod is fixedly connected to the clamping plate, and the outer rod of the telescopic rod passes through the large synchronous wheel of the synchronous assembly and is fixedly connected to it.

[0014] The advantages of this utility model compared to the prior art are: 1. By setting up an elastic transmission component as a load buffer transition structure, the fabric roll is buffered by spring components after pressing down on the support rollers before being transmitted to the pressure sensor. This reduces the impact of the start and stop of winding on the sensor, which is conducive to maintaining the weighing stability of the long-term production process. At the same time, the tapered block adapts to multi-inner-diameter drums, and the double-sided synchronous transmission mechanism ensures smooth winding, thus solving three core problems: poor weighing accuracy, weak drum versatility, and uneven fabric roll end face. 2. By using guide plates and guide rails at both ends of the support roller to form a vertical guide pair, the support roller moves only in a straight line when it is pressed up and down, and will not deviate to the left or right. The load is transmitted vertically downward, which further reduces the fluctuation of weighing data and improves the stability of weight detection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a fabric inspection device with an automatic weighing and winding mechanism according to this utility model. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of a fabric inspection device with an automatic weighing and winding mechanism according to this utility model. Figure 2 ; Figure 3 This is a three-dimensional schematic diagram of a fabric inspection device with an automatic weighing and winding mechanism according to this utility model. Figure 3 ; Figure 4This is a three-dimensional schematic diagram of the connection structure between the clamping plate and the conical block of a fabric inspection device with an automatic weighing and winding mechanism according to this utility model. Figure 5 yes Figure 1 Enlarged view of point A in the middle; Figure 6 yes Figure 4 Enlarged diagram of point B in the middle.

[0016] The following components are labeled in the diagram: 1. Frame; 11. Light transmission detection device; 2. Clamping plate; 21. Conical block; 22. Pressure sensor; 23. Support plate; 24. Support roller; 25. Spring component; 26. Guide plate; 27. Guide rail; 28. Guide rod; 29. ​​Screw; 210. First servo motor; 211. Telescopic rod; 212. Synchronization assembly; 213. Second servo motor. Detailed Implementation

[0017] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0018] See Figures 1 to 4 and Figure 6 As shown, a fabric inspection device with an automatic weighing and winding mechanism includes a frame 1 and a light transmission detection device 11. The light transmission detection device 11 is installed obliquely on the upper side of the frame 1. It also includes a weighing mechanism with a pressure sensor 22 for detecting the weight of the fabric roll. The weighing mechanism is further equipped with an elastic transmission component for buffering the impact load generated during fabric winding and smoothly transmitting the overall load of the roll to the pressure sensor 22 to complete weight acquisition. The elastic transmission component includes a support roller 24 and a spring 25. The support roller 24 is horizontally positioned directly below the clamping plate 2. The spring 25 is vertically positioned on the side of the frame 1 near the end of the support roller 24, and the lower end of the spring 25 is connected to the pressure-receiving surface of the pressure sensor 22. After the fabric winding thickness increases and presses down on the support roller 24, the load is elastically buffered by the spring 25 and then transmitted to the pressure sensor 22, thus weakening the instantaneous impact during winding start and stop.

[0019] The two ends of the support roller 24 are respectively provided with guide components, the guide components include guide plate 26 and guide rail 27; the guide plate 26 is rotatably connected to both ends of the support roller 24, and the guide plate 26 is fixedly connected to the upper end of the spring member 25; the guide rail 27 is fixedly connected to the side of the frame 1 facing the guide plate 26; the inner side of the guide rail 27 is fixedly connected to the bottom of the pressure sensor member 22; the guide plate 26 and the guide rail 27 slide together to form a sliding guide pair, which is used to limit the support roller 24 to move only in a vertical straight line when it is pressed up and down.

[0020] Before the fabric inspection device starts the fabric roll-up operation, the operator places two sets of fabric rolls between the clamping plates 2 symmetrically arranged on both sides of the frame 1, and uses the clamping mechanism to lock the fabric rolls and clamping plates 2 in place. One set of fabric rolls is empty and has no fabric wound around it, while the other set of fabric rolls is pre-wound with the fabric to be inspected. The end of the fabric to be inspected is pulled so that the fabric passes horizontally through the upper part of the light transmission detection device 11. The light transmission detection device 11 is used to detect appearance defects such as fabric surface defects and color differences. After the fabric is inspected, the end of the fabric is fixed to the outer wall of the empty fabric roll.

[0021] After the fabric end is fixed, the transfer mechanism is started, and the clamping plates 2 on both sides of the drive frame 1 rotate synchronously, continuously winding the fabric that has been inspected by the light transmission detection device 11 to the empty fabric roll above the weighing mechanism; as the thickness of the wound fabric gradually increases, the outer wall of the fabric roll continuously presses down on the support roller 24, and the support roller 24 can rotate around its own axis, reducing the sliding friction in the contact area between the fabric roll and the support roller 24, and avoiding scratches and wrinkles on the fabric surface caused by pulling.

[0022] The support roller 24, under the downward pressure of the fabric roll, synchronously drives the guide plate 26 to move vertically downward along the guide rail 27. The guide plate 26 and the guide rail 27 slide together to form a sliding guide pair, which constrains the guide plate 26 and the support roller 24 to move smoothly only along the vertical trajectory, suppressing the left and right deviation of the support roller 24 and causing fluctuations in the weighing data. During the downward movement of the guide plate 26, the spring component 25 is compressed simultaneously. The spring component 25 relies on its own elastic deformation to smoothly transmit the fabric roll load to the pressure sensor component 22. The spring component 25 can buffer the impact load generated at the moment of fabric winding and stopping, reduce the wear of instantaneous pressure on the pressure sensor component, and maintain the weighing detection accuracy over a long period of time. The pressure sensor component 22 collects the total weight of the current fabric roll in real time. When the detected weight reaches the preset value of the process, the equipment outputs a prompt signal, which makes it convenient for the operator to remove the full roll of fabric from the clamping plate 2 in time, replace it with an empty roll, and continue to carry out continuous winding operations.

[0023] See Figures 1 to 5As shown, the clamping mechanism has two sets of symmetrically arranged clamping plates 2 for supporting the fabric roll. Each clamping plate 2 has a conical block 21, which abuts against the inner wall of the fabric roll to accommodate fabric rolls with different inner diameters. The clamping mechanism also includes a support plate 23 for supporting the clamping plates 2, and a drive assembly for driving the linear displacement of the support plate 23. The support plate 23 is symmetrically arranged on the drive assembly. The drive assembly includes a guide rod 28, a screw 29, and a first servo motor 210. The guide rod 28 is fixedly connected to the frame 1, and the guide rod 28 and the support plate 23 slide together to form a sliding guide pair for limiting the support plate. The screw 23 rotates synchronously with the screw 29; the screw 29 is rotatably mounted on the side of the frame 1 near the guide rod 28, and the screw 29 is threadedly connected to the support plate 23; the first servo motor 210 is fixedly installed inside the frame 1, and the output end of the first servo motor 210 is fixedly connected to one end of the screw 29; the two ends of the screw 29 are provided with threaded grooves with opposite thread directions, which are used to drive the two symmetrically arranged support plates 23 to move towards or away from each other along the screw 29. The first servo motor 210 drives the screw 29 to rotate, which synchronously drives the two support plates 23 to move closer to each other or further away from each other, so as to ensure that the center of the drum clamping coincides with the center line of the equipment.

[0024] When the fabric roll is placed between the clamping plates 2, the first servo motor 210 can be started. The output end of the first servo motor 210 drives the screw 29 to rotate. The support plate 23 and the guide rod 28 slide together to form a sliding guide pair, which constrains the support plate 23 to rotate circumferentially in sync with the screw 29. It can only make linear displacement along the axial direction of the screw 29. The screw 29 has screw grooves with opposite directions of rotation at both ends. During the rotation of the screw 29, the two support plates 23 on both sides are driven to move closer to each other or separate from each other.

[0025] When installing the fabric roll, the two side support plates 23 move synchronously towards each other, respectively driving the clamping plates 2 to complete the roll clamping action; the telescopic rod 211 is composed of an inner rod and an outer rod that are interlocked, and the inner rod and the outer rod can slide relative to each other, so as not to block the rotation transmission path when the clamping distance of the clamping plate 2 is adjusted; the clamping plate 2 is equipped with a conical block 21, which fits and connects with the inner wall of the fabric roll. The conical block 21 is suitable for fabric rolls with various inner diameter specifications, so as to realize the quick clamping of multiple specifications of rolls; the surface of the conical block 21 is covered with flexible wear-resistant rubber to increase the frictional resistance between it and the inner wall of the roll, strengthen the clamping and limiting effect, and prevent the fabric roll from radially shaking and freely rotating inside the clamping plate 2 during the winding process.

[0026] See Figure 4As shown, a transmission mechanism is used to synchronously drive the clamping plates 2 on both sides of the fabric roll to rotate at the same speed. The transmission mechanism includes a telescopic rod 211, a synchronization component 212, and a second servo motor 213. The telescopic rod 211 is rotatably mounted on the frame 1. The synchronization component 212 is rotatably mounted inside the frame 1. The telescopic rod 211 passes through the center of the large synchronization wheel of the synchronization component 212 and is fixedly connected to it. The synchronization component 212 is used to evenly transmit rotational power to the telescopic rods on both sides. The second servo motor 213 is fixedly installed on the side of the frame 1 facing the synchronization component 212. The output end of the second servo motor 213 is connected to the synchronization component 212. The working end is fixedly connected; the synchronization component 212 consists of a large synchronous belt and two large synchronous pulleys, and a small synchronous belt and two small synchronous pulleys; the two ends of the large synchronous belt are respectively engaged with the two large synchronous pulleys, and the two ends of the small synchronous belt are respectively engaged with the two small synchronous pulleys; the small synchronous pulley on one side of the synchronization component 212 is fixedly connected to the output end of the second servo motor 213; the telescopic rod 211 consists of an inner rod and an outer rod that are interlocked and can slide relative to each other, and the cross-section of the inner rod and the outer rod is rectangular. The inner rod of the telescopic rod 211 is fixedly connected to the clamping plate 2, and the outer rod of the telescopic rod 211 passes through the large synchronous pulley of the synchronization component 212 and is fixedly connected to it.

[0027] After the fabric roll is clamped and positioned, the second servo motor 213 is started. The output of the second servo motor 213 drives the small synchronous wheel on one side of the synchronization component 212 to rotate. The power is evenly transmitted to the telescopic rod 211 through the entire synchronization component 212. The inner and outer rods of the telescopic rod 211 are both rectangular in cross-section. The rectangular cross-section structure allows the inner and outer rods to stably transmit rotational torque in a relative sliding state, ensuring that the telescopic rod 211 synchronously drives the clamping plate 2 to rotate. The clamping plate 2 and the support plate 23 adopt a rotating assembly structure. When the support plate 23 adjusts the clamping distance, it does not interfere with the rotational movement of the clamping plate 2, so that the clamping plate 2 can continuously and stably drive the fabric roll to complete the fabric winding operation.

[0028] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A fabric inspection device with an automatic weighing and winding mechanism, comprising a frame (1) and a light transmittance detection device (11), wherein the light transmittance detection device (11) is obliquely mounted on the upper side of the frame (1), characterized in that, Also includes: The weighing mechanism has a pressure sensor (22) for detecting the weight of the fabric roll. The weighing mechanism is also equipped with an elastic transmission component for buffering the impact load generated by the fabric winding and smoothly transmitting the overall load of the roll to the pressure sensor (22) to complete the weight acquisition. The clamping mechanism has two sets of symmetrically arranged clamps (2) for supporting the fabric roll. The clamps (2) have conical blocks (21). The conical blocks (21) are connected to the inner wall of the fabric roll to adapt to fabric rolls with different inner diameters. The clamping mechanism is also equipped with a support plate (23) for supporting the clamps (2). The clamping mechanism is also equipped with a drive component for driving the linear displacement of the support plate (23). The support plate (23) is symmetrically arranged on the drive component. The transmission mechanism is used to synchronously drive the clamps (2) on both sides of the fabric roll to rotate at the same speed.

2. The fabric inspection device with an automatic weighing and winding mechanism according to claim 1, characterized in that, The elastic transmission assembly includes a support roller (24) and a spring (25); the support roller (24) is horizontally positioned directly below the clamping plate (2); the spring (25) is vertically positioned on the side of the frame (1) near the end of the support roller (24), and the lower end of the spring (25) is connected to the pressure-bearing surface of the pressure sensor (22); after the fabric roll thickness increases and the support roller (24) is pressed down, the load is elastically buffered by the spring (25) and then transmitted to the pressure sensor (22) to weaken the instantaneous impact of the roll start and stop.

3. A fabric inspection device with an automatic weighing and winding mechanism according to claim 2, characterized in that, The two ends of the support roller (24) are respectively provided with guide components, the guide components include guide plate (26) and guide rail (27); the guide plate (26) is rotatably connected to the two ends of the support roller (24), and the guide plate (26) is fixedly connected to the upper end of the spring (25); the guide rail (27) is fixedly connected to the side of the frame (1) facing the guide plate (26); the pressure sensor (22) is set on the frame (1) independently of the guide rail (27); the guide plate (26) and the guide rail (27) slide to form a sliding guide pair, which is used to limit the support roller (24) to move only in a vertical straight line when it is pressed up and down.

4. A fabric inspection device with an automatic weighing and winding mechanism according to claim 1, characterized in that, The drive assembly includes a guide rod (28), a screw (29), and a first servo motor (210); the guide rod (28) is fixedly connected to the frame (1), and the guide rod (28) and the support plate (23) are slidably engaged to form a sliding guide pair, which is used to restrict the support plate (23) to rotate synchronously with the screw (29); the screw (29) is rotatably disposed on the side of the frame (1) near the guide rod (28), and the screw (29) is threadedly connected to the support plate (23); the first servo motor (210) is fixedly installed inside the frame (1), and the output end of the first servo motor (210) is fixedly connected to one end of the screw (29).

5. A fabric inspection device with an automatic weighing and winding mechanism according to claim 4, characterized in that, The screw (29) has screw grooves with opposite thread directions at both ends, which are used to drive the two symmetrically arranged support plates (23) to move towards or away from each other along the screw (29). The first servo motor (210) drives the screw (29) to rotate, which can synchronously drive the two support plates (23) to move towards each other or away from each other in equal amounts, so as to ensure that the drum clamping center coincides with the center line of the equipment.

6. A fabric inspection device with an automatic weighing and winding mechanism according to claim 1, characterized in that, The transmission mechanism includes a telescopic rod (211), a synchronization component (212), and a second servo motor (213); the telescopic rod (211) is rotatably mounted on the frame (1); the synchronization component (212) is rotatably mounted inside the frame (1), the telescopic rod (211) passes through the center of the large synchronization wheel of the synchronization component (212) and is fixedly connected to it, the synchronization component (212) is used to evenly transmit rotational power to the telescopic rods on both sides; the second servo motor (213) is fixedly mounted on the side of the frame (1) facing the synchronization component (212), and the output end of the second servo motor (213) is fixedly connected to the working end of the synchronization component (212).

7. A fabric inspection device with an automatic weighing and winding mechanism according to claim 6, characterized in that, The synchronization component (212) consists of a large synchronous belt and two large synchronous pulleys, as well as a small synchronous belt and two small synchronous pulleys; the two ends of the large synchronous belt are respectively engaged with the two large synchronous pulleys, and the two ends of the small synchronous belt are respectively engaged with the two small synchronous pulleys; the small synchronous pulley on one side of the synchronization component (212) is fixedly connected to the output end of the second servo motor (213).

8. A fabric inspection device with an automatic weighing and winding mechanism according to claim 6, characterized in that, The telescopic rod (211) consists of an inner rod and an outer rod that are interlocked and can slide relative to each other. The cross-sections of the inner rod and the outer rod are both rectangular. The inner rod of the telescopic rod (211) is fixedly connected to the clamping plate (2). The outer rod of the telescopic rod (211) passes through the large synchronous wheel of the synchronous assembly (212) and is fixedly connected to it.

Images