Non-woven fabric conductivity online detection device

Abstract

The utility model discloses a non-woven fabric conductivity on-line detection device which comprises a detection supporting frame, an unwinding frame is fixedly installed on one side of the upper end of the detection supporting frame, a non-woven fabric body is arranged at the upper end of the unwinding frame, and a guide structure is arranged on one side of the unwinding frame. The guiding structure comprises a fixing frame fixedly installed at the upper end of the detection supporting frame, a driving motor is fixedly installed in the fixing frame, the output end of the driving motor is fixedly connected with a two-way lead screw, the outer wall of the two-way lead screw is symmetrically connected with two guiding sleeves in a threaded mode, and a guiding movable plate is arranged below the two guiding sleeves. The other ends of the two guide movable plates are arranged on two mounting seats, the bottoms of the two mounting seats are fixedly mounted at the upper end of a limiting frame, a limiting roller is fixedly mounted at the bottom of the limiting frame, and an adjusting structure is arranged on one side of the fixing frame, so that tension extrusion adjustment of the non-woven fabric can be realized; the problem that the conductivity detection result is affected by wrinkles or knots caused by insufficient tension of the non-woven fabric during conveying is avoided.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric production and testing technology, and in particular to an online testing device for the conductivity of nonwoven fabrics. Background Technology

[0002] Nonwoven fabrics are widely used in electronics, medical, and packaging fields due to their advantages such as lightweight, good breathability, and low cost. Among them, conductivity is the core indicator of functional nonwoven fabrics (such as nonwoven fabrics for electronic component packaging, which need to have stable antistatic capabilities), and directly affects the safety and reliability of product use.

[0003] However, existing methods for testing the conductivity of nonwoven fabrics have some shortcomings. They often involve using conveyor rollers to produce the nonwoven fabric and then using detection electrode assemblies to test its guiding properties. However, the nonwoven fabric is prone to insufficient tension and loosening during conveying, which can cause deviations in the data obtained by the detection electrode assembly and reduce the efficiency of nonwoven fabric testing. To address these issues, an online nonwoven fabric conductivity testing device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an online testing device for the conductivity of nonwoven fabrics, so as to solve the problems mentioned in the background art.

[0005] To solve the above problems, the following technical solution is provided: an online testing device for the conductivity of nonwoven fabric, including a testing support frame. A unwinding frame is fixedly installed on one side of the upper end of the testing support frame, and a nonwoven fabric body is provided on the upper end of the unwinding frame. A guide structure is provided on one side of the unwinding frame. The guide structure includes a fixed frame fixedly installed on the upper end of the testing support frame. A drive motor is fixedly installed inside the fixed frame, and a bidirectional lead screw is fixedly connected to the output end of the drive motor. Two guide sleeves are symmetrically threaded on the outer wall of the bidirectional lead screw. Guide movable plates are provided below the two guide sleeves. The other ends of the two guide movable plates are provided on two mounting seats, and the bottom of the two mounting seats is fixedly installed on the upper end of a limiting frame. A limiting roller is fixedly installed on the bottom of the limiting frame. An adjustment structure is provided on one side of the fixed frame, and a take-up roller is provided on the other side above the testing support frame.

[0006] As a preferred embodiment of the above technical solution, the outer wall of the fixed frame is fixedly provided with scale lines, the two guide sleeves are both fixedly installed with guide rods, and the two guide movable plates are respectively fixedly installed with connecting protrusions at both ends, one set of connecting protrusions being rotatably installed with the guide rods.

[0007] As a preferred embodiment of the above technical solution, the other set of connecting protrusions is rotatably connected to two mounting seats respectively, and guide sliders are fixedly installed on both sides of the limiting frame and the guide sliders are slidably connected to the inner wall of the fixed frame respectively.

[0008] As a preferred embodiment of the above technical solution, a PLC control panel is fixedly installed on the front side above the detection support frame, and servo motors are fixedly installed on the outer walls of both the unwinding frame and the winding roller.

[0009] As a preferred embodiment of the above technical solution, the adjustment structure includes a positioning frame fixedly installed on the upper end of the detection support frame. An upper electrode roller and a lower electrode roller with relative positions are respectively arranged inside the positioning frame. An adjustment motor is fixedly installed on the outer wall of the lower electrode roller. Guide frames are fixedly installed on both sides inside the positioning frame, and an adjustment cylinder is fixedly installed on the upper end of each guide frame.

[0010] As a preferred embodiment of the above technical solution, each of the two adjusting cylinders is fixedly connected to a guide seat at one end, the two guide seats are rotatably connected to both ends of the upper electrode roller, and a linear slider is fixedly installed on the outer wall of each of the two guide seats, and the linear slider is slidably connected to two linear slide rails respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The device of this utility model is equipped with a guide structure. By starting the drive motor, the two guide sleeves outside the bidirectional lead screw move relative to each other, causing the two guide sleeves to drive the two guide movable plates to press against the mounting seat below. This causes the limit roller on the limit frame at the bottom of the mounting seat to move precisely downward along the scale line, thereby realizing the tension compression adjustment of the non-woven fabric. This avoids problems such as wrinkles or knots caused by insufficient tension of the non-woven fabric during transportation, which would affect the conductivity test results, improve the transportation stability of the non-woven fabric, and improve its processing efficiency.

[0013] 2. The device of this utility model is equipped with an adjustment structure. By driving two adjustment cylinders, the upper electrode roller on the outside of the guide seat is moved. At the same time, when the guide seat moves, it uses a linear slider to slide along the linear slide rail, thereby stabilizing the upper electrode roller. This is beneficial for adapting to non-woven fabrics of different thicknesses for conductivity testing and improving the applicability of the testing device.

[0014] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of an online testing device for the conductivity of nonwoven fabrics according to the present invention.

[0017] Figure 2 This is a schematic diagram of the rear structure of an online testing device for the conductivity of nonwoven fabrics according to the present invention.

[0018] Figure 3 for Figure 1 A partial enlarged diagram of the split structure;

[0019] Figure 4 for Figure 2 A magnified diagram of the partially disassembled structure.

[0020] In the diagram: 1. Detection support frame; 2. Unwinding frame; 3. Servo motor; 4. Nonwoven fabric body; 5. Guide structure; 50. Scale line; 51. Fixing frame; 52. Drive motor; 53. Bidirectional lead screw; 54. Guide sleeve; 55. Guide movable plate; 56. Connecting convex ring; 57. Mounting base; 58. Limiting frame; 581. Guide slider; 59. Limiting roller; 6. Adjustment structure; 61. Positioning frame; 62. Adjusting motor; 63. Lower electrode roller; 64. Upper electrode roller; 65. Guide frame; 66. Adjusting cylinder; 67. Guide seat; 68. Linear slider; 69. Linear slide rail; 7. Take-up roller; 8. PLC control panel. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 4 As shown in the figure, this embodiment provides an online testing device for the conductivity of nonwoven fabric, including a testing support frame 1. A unwinding frame 2 is fixedly installed on one side of the upper end of the testing support frame 1, and a nonwoven fabric body 4 is provided on the upper end of the unwinding frame 2. A guide structure 5 is provided on one side of the unwinding frame 2. The guide structure 5 includes a fixed frame 51 fixedly installed on the upper end of the testing support frame 1. A drive motor 52 is fixedly installed inside the fixed frame 51, and a bidirectional lead screw 53 is fixedly connected to the output end of the drive motor 52. Two guide sleeves 54 are symmetrically threaded on the outer wall of the bidirectional lead screw 53. A guide movable plate 55 is provided below the two guide sleeves 54. The other end of the two guide movable plates 55 is provided on two mounting seats 57, and the bottom of the two mounting seats 57 is fixedly installed on the upper end of a limiting frame 58. A limiting roller 59 is fixedly installed on the bottom of the limiting frame 58. An adjustment structure 6 is provided on one side of the fixed frame 51, and a take-up roller 7 is provided on the other side above the testing support frame 1.

[0023] like Figures 2 to 3As shown, the outer wall of the fixed frame 51 is fixedly provided with scale lines 50, the two guide sleeves 54 are both fixedly installed with guide rods, and the two guide movable plates 55 are respectively fixedly installed with connecting protrusions 56 at both ends. One set of connecting protrusions 56 is rotatably installed with the guide rod, and the other set of connecting protrusions 56 is rotatably connected with the two mounting seats 57 respectively. The limit frame 58 is fixedly installed with guide sliders 581 on both sides, and the guide sliders 581 are slidably connected to the inner wall of the fixed frame 51 respectively. The front side of the detection support frame 1 is fixedly provided with a PLC control panel 8, and the outer walls of the unwinding frame 2 and the winding roller 7 are both fixedly provided with servo motors 3.

[0024] By electrically connecting the PLC control panel 8 with the drive motor 52, servo motor 3 and regulating motor 62, and transmitting the conductive data of the nonwoven fabric detection to the control panel for analysis and comparison with the initial threshold, this is an existing mature technology and has not been elaborated in detail in this application. When the limit frame 58 drives the limit roller 59 to move downward, the two outer guide sliders 581 slide along the fixed frame 51 to facilitate relatively stable movement of the limit roller 59.

[0025] like Figure 4 As shown, the adjustment structure 6 includes a positioning frame 61 fixedly installed on the upper end of the detection support frame 1. The positioning frame 61 has an upper electrode roller 64 and a lower electrode roller 63 respectively arranged in relative positions. An adjustment motor 62 is fixedly installed on the outer wall of the lower electrode roller 63. Guide frames 65 are fixedly installed on both sides inside the positioning frame 61. Adjustment cylinders 66 are fixedly installed on the upper end of the guide frames 65. One end of each of the two adjustment cylinders 66 is fixedly connected to a guide seat 67. The two guide seats 67 are rotatably connected to both ends of the upper electrode roller 64. Linear sliders 68 are fixedly installed on the outer wall of each of the two guide seats 67, and the linear sliders 68 are slidably connected to two linear slide rails 69 respectively.

[0026] By using the two guide seats 67 to move the upper electrode roller 64, the rear linear slider 68 slides along the linear slide rail 69, thereby stably driving the upper electrode roller 64 to adjust its height, adapting to non-woven fabrics of different thicknesses for conductivity testing.

[0027] The working principle and process of this utility model are as follows: The non-woven fabric to be tested is placed on the unwinding frame 2. Then, the operator presets the parameter values ​​of the drive motor 52, servo motor 3 and adjusting motor 62 on the touch screen of the PLC control panel 8 in advance. Then, the servo motor 3 is started to drive the unwinding frame 2 to transport the non-woven fabric to the detection positioning frame 61. When the non-woven fabric is tested, the drive motor 52 in the drive fixing frame 51 drives the two guide sleeves 54 outside the bidirectional lead screw 53 to move relative to each other. This causes the two guide sleeves 54 to drive the two guide movable plates 55 to squeeze the lower mounting seat 57. This causes the limiting roller 59 on the limiting frame 58 at the bottom of the mounting seat 57 to move precisely downward along the scale line 50. This achieves tension compression adjustment of the non-woven fabric and avoids problems such as wrinkles or knots caused by insufficient tension during the transport of the non-woven fabric, which affect the conductivity test results.

[0028] When one end of the nonwoven fabric is threaded between the two electrode rollers, it is connected to the take-up roller 7. The electrode roller is then tested to ensure it is in contact with the surface of the nonwoven fabric. The conductivity data is then transmitted to the PLC control panel 8 and compared with a pre-set threshold to determine the pass / fail standard. If the pass / fail standard is not met, a mark is sprayed on it. The upper electrode roller 64 on the outside of the guide seat 67 is moved by driving two adjusting cylinders 66. At the same time, the guide seat 67 slides along the linear slide rail 69 using a linear slider 68 during movement, thereby stabilizing and adjusting the upper electrode roller 64. This makes it easy to adapt to nonwoven fabrics of different thicknesses for conductivity testing.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. An apparatus for on-line detection of the electrical conductivity of a nonwoven fabric, characterized by The system includes a testing support frame (1), on one side of the upper end of the testing support frame (1) a winding frame (2) is fixedly installed, and a nonwoven fabric body (4) is provided on the upper end of the winding frame (2). A guide structure (5) is provided on one side of the winding frame (2). The guide structure (5) includes a fixing frame (51) fixedly installed on the upper end of the testing support frame (1). A drive motor (52) is fixedly installed inside the fixing frame (51), and a bidirectional lead screw (53) is fixedly connected to the output end of the drive motor (52). 3) The outer wall is symmetrically threaded with two guide sleeves (54). A guide movable plate (55) is provided below the two guide sleeves (54). The other end of the two guide movable plates (55) is provided on two mounting seats (57). The bottom of the two mounting seats (57) is fixedly installed on the upper end of the limit frame (58). The bottom of the limit frame (58) is fixedly installed with a limit roller (59). An adjustment structure (6) is provided on one side of the fixed frame (51), and a winding roller (7) is provided on the other side above the detection support frame (1).

2. The apparatus according to claim 1, wherein The outer wall of the fixed frame (51) is fixedly provided with scale lines (50), and guide rods are fixedly installed inside the two guide sleeves (54). Connecting protrusions (56) are fixedly installed at both ends of the two guide movable plates (55), and one set of connecting protrusions (56) is rotatably installed with the guide rod.

3. The apparatus according to claim 2, wherein the apparatus is characterized by: Another set of connecting protrusions (56) are rotatably connected to two mounting seats (57), and guide sliders (581) are fixedly installed on both sides of the limiting frame (58), and the guide sliders (581) are slidably connected to the inner wall of the fixed frame (51).

4. The apparatus according to claim 1, wherein A PLC control panel (8) is fixedly installed on the front side above the detection support frame (1), and servo motors (3) are fixedly installed on the outer walls of the unwinding frame (2) and the winding roller (7).

5. The apparatus according to claim 1, wherein the apparatus is characterized by: The adjustment structure (6) includes a positioning frame (61) fixedly installed on the upper end of the detection support frame (1). The positioning frame (61) is provided with an upper electrode roller (64) and a lower electrode roller (63) in relative positions. An adjustment motor (62) is fixedly installed on the outer wall of the lower electrode roller (63). Guide frames (65) are fixedly installed on both sides inside the positioning frame (61). An adjustment cylinder (66) is fixedly installed on the upper end of each guide frame (65).

6. The apparatus according to claim 5, wherein the apparatus is characterized by: Each of the two regulating cylinders (66) is fixedly connected to a guide seat (67) at one end. The two guide seats (67) are rotatably connected to both ends of the upper electrode roller (64). Linear sliders (68) are fixedly installed on the outer walls of the two guide seats (67), and the linear sliders (68) are slidably connected to the two linear slide rails (69).

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