Fabric moisture content detection device and fabric textile printing and dyeing equipment

Abstract

The utility model relates to the field of textiles, in particular to a fabric moisture content detection device and fabric textile printing and dyeing equipment. The fabric moisture content detection device comprises a mounting frame, a first measuring body, a second measuring body and a resistance measuring assembly, wherein the mounting rack is directly or indirectly grounded, the first measuring body and the second measuring body are mounted on the mounting rack at an interval, the first measuring body and the mounting rack are conductive, and the second measuring body and the mounting rack are insulated; the first measuring body and the second measuring body are used for making contact with conveyed fabric, the first measuring body, the second measuring body and the fabric between the first measuring body and the second measuring body jointly form a resistor, and the resistance measuring assembly is connected with the first measuring body and the second measuring body. According to the utility model, the static electricity of the fabric is eliminated, and the resistance is accurately measured, so that the accurate moisture content of the fabric is obtained.

Description

Fabric moisture content testing device and fabric textile printing and dyeing equipment Technical Field

[0001] This utility model relates to the textile field, specifically to a fabric moisture content detection device and fabric textile printing and dyeing equipment. Background Technology

[0002] Detecting the moisture content of fabrics is crucial for textile spinning and dyeing processes. Currently, most methods employ resistance-based online fabric moisture content detection devices, such as patent application number 202221933120.3, entitled "An Online Resistance-Based Fabric Moisture Content Detection Device." This patent utilizes two guide rollers, with the fabric contacting them. The moisture content of the fabric is detected by measuring the resistance between the two guide rollers.

[0003] To avoid short circuits in the measurement signals, an insulation design is used between the two guide rollers and the frame, as exemplified by the patent application number CN201820778362.7 entitled "An Online Detection Device for Resistive Fabric Moisture Content".

[0004] However, in practical applications, it has been found that both structures suffer from inaccurate measurement results, variable offsets, low precision, and may even lead to equipment damage. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a fabric moisture content detection device. It achieves accurate and precise measurement of resistance by eliminating static electricity in the fabric, thereby obtaining a precise fabric moisture content.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a fabric moisture content detection device, comprising a mounting frame, a first measuring body, a second measuring body, and a resistance measuring component; wherein,

[0007] The mounting frame is directly or indirectly grounded, the first measuring body and the second measuring body are installed on the mounting frame at intervals, the first measuring body is conductive to the mounting frame, and the second measuring body is insulated from the mounting frame;

[0008] The first measuring body and the second measuring body are used to contact the conveyed fabric. The first measuring body, the second measuring body, and the fabric between them together constitute a resistor. The resistance measuring assembly is connected to the first measuring body and the second measuring body.

[0009] Furthermore, both the first measuring body and the second measuring body are configured to be non-rotatable.

[0010] A further specific structure is provided to insulate the second measuring body from the mounting bracket, wherein the second measuring body and the mounting bracket are insulated by an insulating member inserted into the second measuring body and connected to the mounting bracket by bolts.

[0011] Furthermore, both the first measuring body and the second measuring body are configured to allow rotation.

[0012] Furthermore, the first measuring body and the second measuring body each include a roller and a support shaft, the roller being rotatably mounted on the support shaft via bearings, and the support shaft being fixedly mounted on the mounting frame; wherein,

[0013] The support shaft of the second measuring body is mounted to the mounting frame by insulating bolts, and an insulating gasket is provided between the support shaft of the second measuring body and the mounting frame.

[0014] To further improve the accuracy of resistance measurement, the resistance measurement component is electrically connected to the first measuring body and the second measuring body via carbon brushes.

[0015] This utility model also relates to a textile printing and dyeing equipment, including a fabric moisture content detection device.

[0016] By adopting the above technical solution, this utility model sets the first measuring body and the mounting frame to be in a conductive state. The resistance formed by the first measuring body, the second measuring body, and the fabric between them is grounded through the mounting frame, which can eliminate static electricity in the fabric, thereby eliminating the interference electric field formed by static charge on the fabric surface, and avoiding the change of contact resistance between the fabric and the first and second measuring bodies by statically adsorbed dust, fiber debris, etc., respectively. This enables accurate measurement of the resistance formed by the first measuring body, the second measuring body, and the fabric between them, and obtains accurate fabric moisture content. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the fabric moisture content detection device in Example 1;

[0018] Figure 2 is a schematic diagram of the fabric moisture content detection device in Example 1 during the process of detecting fabric moisture content.

[0019] Figure 3 is a cross-sectional view of Figure 1;

[0020] Figure 4 is a schematic diagram of the fabric moisture content detection device in Example 2;

[0021] Figure 5 is a cross-sectional view of Figure 4;

[0022] Figure 6 is an enlarged view of part A in Figure 5;

[0023] In the figure, 1. Mounting frame; 2. First measuring body; 3. Second measuring body; 31. Roller; 32. Support shaft; 4. Resistance measuring assembly; 5. Fabric; 6. Insulating component; 7. Bolt; 8. Insulating bolt; 9. Insulating gasket; 10. Bearing. Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] Example 1

[0026] As shown in Figures 1, 2, and 3, a fabric moisture content detection device includes a mounting frame 1, a first measuring body 2, a second measuring body 3, and a resistance measuring component 4; wherein,

[0027] Mounting frame 1 is directly or indirectly grounded. The first measuring body 2 and the second measuring body 3 are installed on mounting frame 1 at intervals. The first measuring body 2 is conductive to mounting frame 1, and the second measuring body 3 is insulated from mounting frame 1.

[0028] The first measuring body 2 and the second measuring body 3 are used to contact the conveyed fabric 5. The first measuring body 2, the second measuring body 3 and the fabric 5 between them together constitute a resistor. The resistance measuring component 4 is connected to the first measuring body 2 and the second measuring body 3.

[0029] It should be noted that the mounting frame 1, the first measuring body 2, and the second measuring body 2 are all conductive. Since an increase in moisture content will reduce the resistance of the fabric 5, the resistance measuring component 4 can detect the resistance value by applying a voltage to the resistor formed by the first measuring body 2, the second measuring body 3, and the fabric 5 between them, and thus deduce the moisture content.

[0030] Specifically, in traditional online fabric moisture content detection devices, during the high-speed conveying process, the fabric 5 is constantly rubbed by rollers, measuring bodies, etc., and static electricity accumulates in large quantities because the charge cannot be released (especially since the two guide rollers and the frame are both designed with insulation). The static charge forms an interfering electric field on the surface of the fabric 5, which is superimposed on the resistance measurement signal, causing the measurement value to drift or be distorted, and may even lead to equipment damage. In addition, static electricity attracts dust or fiber debris, changing the contact resistance between the fabric and the first measuring body 2 and the second measuring body 3, respectively, further reducing the measurement accuracy and precision.

[0031] In this embodiment, the first measuring body 2 and the mounting frame 1 are made conductive. The resistance formed by the first measuring body 2, the second measuring body 3, and the fabric 5 between them is grounded through the mounting frame 1. This eliminates static electricity in the fabric 5, thereby eliminating the interfering electric field formed by static charge on the surface of the fabric 5. It also prevents dust, fiber debris, etc., attracted by static electricity from altering the contact resistance between the fabric and the first measuring body 2 and the second measuring body 3, respectively. This allows for accurate measurement of the resistance formed by the first measuring body 2, the second measuring body 3, and the fabric 5 between them, obtaining an accurate fabric moisture content. In addition, this embodiment also solves the problem of equipment damage caused by static electricity accumulation.

[0032] In this embodiment, the mounting frame 1 can be directly grounded or grounded through the equipment using the fabric moisture content detection device. Since equipment is generally grounded, the mounting frame 1 is preferably grounded through the equipment using the fabric moisture content detection device. Considering that the resistance formed by the first measuring body 2, the second measuring body 3, and the fabric 5 between them is essentially grounded through the mounting frame 1, the resistance measuring component 4 preferably uses the "four-wire measurement method" to measure the resistance value, but it is not limited to this.

[0033] In this embodiment, as shown in Figures 1, 2 and 3, there are two mounting brackets 1, and the first measuring body 2 and the second measuring body 3 are both disposed between the two mounting brackets 1.

[0034] In this embodiment, as shown in Figures 1, 2, and 3, both the first measuring body 2 and the second measuring body 3 are fixed rollers that are not allowed to rotate. There are various ways to achieve insulation between the second measuring body 3 and the mounting frame 1, including but not limited to:

[0035] The first type, as shown in Figures 1, 2 and 3, is insulated from the mounting frame 1 by an insulating component 6. The insulating component 6 is inserted into the second measuring body 3 and connected to the mounting frame 1 by bolts 7.

[0036] The second type involves a circumferentially wrapped insulating sleeve around the second measuring body 3, with the portion of the insulating sleeve being fixedly inserted into the mounting bracket 1.

[0037] In this case, the first measuring body 2 is normally in contact with and installed on the mounting bracket 1, which allows the two to conduct electricity.

[0038] Example 2

[0039] The main difference between this embodiment and Embodiment 1 is that both the first measuring body 2 and the second measuring body 3 are rotatable guide rollers, each including a roller body 31 and a support shaft 32; wherein...

[0040] The roller body 31 is rotatably mounted on the support shaft 32 via the bearing 10, and the support shaft 32 is fixedly mounted on the mounting frame 1; or the roller body 31 is fixedly mounted on the support shaft 32, and the support shaft 32 is rotatably mounted on the mounting frame.

[0041] There are several ways to achieve insulation between the second measuring body 3 and the mounting bracket 1. One method is listed here.

[0042] As shown in Figures 4, 5 and 6, when the roller body 31 is rotatably mounted on the support shaft 32 via the bearing 10, and the support shaft 32 is fixedly mounted on the mounting frame 1, the support shaft 32 of the second measuring body 3 is mounted on the mounting frame 1 via the insulating bolt 8, and an insulating gasket 9 is provided between the support shaft 32 of the second measuring body 3 and the mounting frame 1, and the insulating gasket 9 can be fitted onto the support shaft 32 of the second measuring body 3.

[0043] In this case, the support shaft 32 of the first measuring body 2 is in normal contact with the mounting bracket 1 and installed (connected by conventional bolts), so that the two can conduct electricity.

[0044] In this embodiment, in order to avoid the rotation of the guide roller affecting the accuracy of the measurement, preferably, the resistance measuring component 4 is electrically connected to the first measuring body 2 and the second measuring body 3 via carbon brushes.

[0045] Example 3

[0046] A textile textile printing and dyeing equipment includes the fabric moisture content detection device described in Example 1 or Example 2. The textile textile printing and dyeing equipment can be a dryer, a setting machine, a sizing machine, a dyeing machine, a printing machine, etc.

[0047] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fabric moisture content detection device, characterized in that, The device includes a mounting frame (1), a first measuring body (2), a second measuring body (3), and a resistance measuring assembly (4); wherein the mounting frame (1) is directly or indirectly grounded, the first measuring body (2) and the second measuring body (3) are installed at intervals on the mounting frame (1), the first measuring body (2) is conductive to the mounting frame (1), and the second measuring body (3) is insulated from the mounting frame (1); the first measuring body (2) and the second measuring body (3) are used to contact the conveyed fabric (5), the first measuring body (2), the second measuring body (3) and the fabric (5) between them together constitute a resistor, and the resistance measuring assembly (4) connects the first measuring body (2) and the second measuring body (3).

2. The fabric moisture content detection device according to claim 1, characterized in that, Both the first measuring body (2) and the second measuring body (3) are configured to not rotate.

3. The fabric moisture content detection device according to claim 2, characterized in that, The second measuring body (3) is insulated from the mounting bracket (1) by an insulating member (6), which is inserted into the second measuring body (3) and connected to the mounting bracket (1) by bolts (7).

4. The fabric moisture content detection device according to claim 1, characterized in that, Both the first measuring body (2) and the second measuring body (3) are configured to allow rotation.

5. The fabric moisture content detection device according to claim 4, characterized in that, The first measuring body (2) and the second measuring body (3) respectively include a roller (31) and a support shaft (32). The roller (31) is rotatably mounted on the support shaft (32) via a bearing (10). The support shaft (32) is fixedly mounted on the mounting frame (1). The support shaft (32) of the second measuring body (3) is mounted on the mounting frame (1) via an insulating bolt (8), and an insulating gasket (9) is provided between the support shaft (32) of the second measuring body (3) and the mounting frame (1).

6. The fabric moisture content detection device according to claim 4, characterized in that, The resistance measurement component (4) is electrically connected to the first measuring body (2) and the second measuring body (3) via carbon brushes.

7. A textile printing and dyeing equipment, characterized in that, Includes the fabric moisture content detection device according to any one of claims 1-6.

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