A new paper curl tester

Abstract

This utility model relates to the field of paper curl testing technology, and specifically discloses a novel paper curl measuring instrument, including a base made of stainless steel and aluminum plate. The upper end of the base has a measuring structure, which includes a pre-tension setting device. A pressure plate is fixedly installed on the upper end of the base, and multiple length measuring devices are fixedly installed on the upper end of the pressure plate. A balance head is slidably mounted on the circumferential surface of the pre-tension setting device, and a calibration device is located at the lower end of the balance head. Multiple adjusting feet are located at the lower end of the base. By setting up the measuring structure, paper can be fixed to the length measuring devices using wire clamps. Simultaneously, the pre-tension setting device can drive the balance head and calibration devices to move downwards, applying pressure to the paper and completing the measurement of paper curl. This device has a simple structure, is easy to operate, and can achieve excellent testing results. It can promptly test paper curl indicators, guide production to improve paper quality, and better suit printing applications.

Description

Technical Field

[0001] This utility model relates to the field of paper curl testing technology, and in particular to a novel paper curl measuring instrument. Background Technology

[0002] Paper curl test is a test method used to measure the degree of bending deformation of paper caused by uneven stress on internal fibers during humidity, temperature changes or printing process. Measuring curl can help adjust the process and improve the flatness of paper.

[0003] Currently, existing devices typically require multiple sensors and stepless clamps for measurement, resulting in a complex overall structure, high cost, and inconvenience for use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel paper curl degree tester, which solves the technical problem that existing testers are not easy to use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel paper curl tester, comprising a base;

[0009] The upper end of the base is provided with a measuring structure;

[0010] The measuring structure includes a pre-tension setting device, a pressure plate is fixedly installed on the upper end of the base, and multiple length measuring devices are fixedly installed on the upper end of the pressure plate. Each length measuring device is located at one of the four corners of the pressure plate. A balance head is slidably installed on the circumferential surface of the pre-tension setting device, and a calibration device is provided at the lower end of the balance head.

[0011] Preferably, the pretension setting device has a left-hand thread on its circumferential surface, a limit ring is fixedly installed on the circumferential surface of the pretension setting device, the left-hand thread is located outside the limit ring, a nut is threaded on the circumferential surface of the left-hand thread, and the balance head can be fixed to the pretension setting device by the nut and the limit ring.

[0012] Preferably, the base has a fixing block on its side wall, a universal joint at the upper end of the fixing block, an air outlet at the end of the universal joint, an air inlet at the lower end of the universal joint, the air inlet extending to the bottom of the fixing block, and multiple adjusting feet at the lower end of the base, each adjusting foot being located at one of the four corners of the base.

[0013] (III) Beneficial Effects

[0014] Firstly, by setting up a measuring structure, the paper can be fixed to the length measuring device using a wire clamp. At the same time, the pre-tension setting device can drive the balance head and calibration device to move downwards to apply pressure to the paper, thus completing the measurement of paper warp. This device has a simple structure, is easy to operate, and can achieve good detection results. It can promptly test the paper curl index, guide production to improve paper quality, and better suit the printing industry.

[0015] Secondly, by setting a nut, when changing to a suitable balance head, the operator can put the balance head on the pre-tension setting device and use it by relying on the nut and the limiting ring to fix it on the pre-tension setting device, which improves convenience. Also, by setting a universal joint, the operator can first connect the air inlet pipe to the external air pump and rotate the universal joint to use the air outlet to clean the paper, which also improves convenience. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.

[0019] Figure 3 Exploded view of the pre-tension setting device of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the calibration device of this utility model.

[0021] Legend: 11. Base; 12. Pre-tension setting device; 13. Pressing plate; 14. Length measuring device; 15. Balance head; 16. Calibration device; 17. Limiting ring; 18. Left-hand thread; 19. Nut; 21. Fixing block; 22. Universal joint; 23. Air outlet; 24. Air inlet pipe; 25. Adjusting foot. Detailed Implementation

[0022] This application provides a novel paper curl tester, effectively solving the technical problems of existing testers being unusable. By setting a measuring structure, the paper can be fixed to the length measuring device using a clamp. Simultaneously, the pre-tension setting device can drive the balance head and calibration device downwards to apply pressure to the paper, thus measuring the paper curl. This device has a simple structure, is easy to operate, and achieves excellent testing results. It can promptly test paper curl indexes, guiding production to improve paper quality and better suitability for printing. Furthermore, by setting a nut, when changing to a suitable balance head, the operator can place the balance head onto the pre-tension setting device and fix it in place using the nut and limiting ring, improving convenience. Finally, by setting a universal joint, the operator can first connect the air inlet pipe to an external air pump and rotate the universal joint to clean the paper using the air outlet, further improving convenience.

[0023] Example 1

[0024] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problem that existing measuring instruments are not easy to use. The overall idea is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a novel paper curl tester, including a base 11, which is made of stainless steel aluminum plate;

[0026] A measuring structure is provided at the upper end of the base 11;

[0027] The measuring structure includes a pre-tension setting device 12 (the pre-tension setting device 12 consists of an electric push rod and an L-shaped pipe, wherein the electric push rod is embedded inside the base 11), a pressure plate 13 is fixedly installed on the upper end of the base 11, and multiple length measuring devices 14 are fixedly installed on the upper end of the pressure plate 13. Each length measuring device 14 is located at the four corners of the pressure plate 13. The pressure plate 13 is fixed to the base 11 by screws. The length measuring device 14 (the length measuring device 14 consists of a horizontal straight plate and a scale, wherein an external wire clip can be used to fix the paper to the straight plate, and the two sets of weight scales are different positions to increase applicability) is fixed to the base 11. A balance head 15 is slidably installed on the circumferential surface of the pre-tension setting device 12. A calibration device 16 is provided at the lower end of the balance head 15. Multiple adjusting feet 25 are provided at the lower end of the base 11, and each adjusting foot 25 is located at the four corners of the base 11.

[0028] When in use, the operator can place the measuring instrument on a horizontal test platform and adjust the adjusting feet 25 to make the entire device horizontal. Then, calculate the pre-tension value according to the paper parameters, select the appropriate model of balance head 15 and install it on the pre-tension setting device 12 to obtain a suitable range. Then, the operator can use a standard ruler to calibrate the device to ensure the accuracy of the measurement data. Then, the operator can use a wire clamp to fix the paper on the length measuring device 14 and measure the data of the paper in a straight state. Then, the operator can turn on the pre-tension setting device 12, so that the electric push rod drives the L-shaped pipe to descend, driving the balance head 15 and the calibration device 16 to descend, thereby applying pre-tension to the paper. Then, the curl of the paper is measured by the scale of the length measuring device 14 to complete the measurement.

[0029] The calibration device 16 is used to periodically calibrate the instrument to ensure the reliability of the measurement data;

[0030] By setting up a measuring structure, the paper can be fixed to the length measuring device 14 using a wire clamp. At the same time, the pre-tension setting device 12 can drive the balance head 15 and the calibration device 16 to move downwards to apply pressure to the paper, thereby completing the measurement of the paper warp. This device has a simple structure, is easy to operate, and can achieve good detection results. It can promptly test the paper curl index, guide production to improve paper quality, and better suit the printing industry.

[0031] Example 2

[0032] To address the problems existing in the prior art, this utility model provides a novel paper curl tester, including a base 11;

[0033] A measuring structure is provided at the upper end of the base 11;

[0034] The measuring structure includes a pre-tension setting device 12, a pressure plate 13 fixedly installed on the upper end of the base 11, and multiple length measuring devices 14 fixedly installed on the upper end of the pressure plate 13. Each length measuring device 14 is located at the four corners of the pressure plate 13. A balance head 15 is slidably installed on the circumferential surface of the pre-tension setting device 12. A calibration device 16 is provided at the lower end of the balance head 15.

[0035] The pretension setting device 12 has a left-hand thread 18 on its circumferential surface. A limit ring 17 is fixedly installed on the circumferential surface of the pretension setting device 12. The left-hand thread 18 is located outside the limit ring 17. A nut 19 is threaded on the circumferential surface of the left-hand thread 18. The balance head 15 can be fixed on the pretension setting device 12 by the nut 19 and the limit ring 17.

[0036] By setting the nut 19, when the operator changes to the appropriate balance head 15, the balance head 15 can be put on the pretension setting device 12 and fixed on the pretension setting device 12 by the nut 19 and the limiting ring 17, which improves the convenience.

[0037] A fixing block 21 is provided on the side wall of the base 11. A universal joint 22 is provided at the upper end of the fixing block 21, and an air outlet 23 is provided at the end of the universal joint 22. An air inlet pipe 24 is provided at the lower end of the universal joint 22, and part of the air inlet pipe 24 extends to the bottom of the fixing block 21.

[0038] By setting up the universal joint 22, the staff can first connect the air inlet pipe 24 to the external air pump, and then rotate the universal joint 22 to use the air outlet 23 to clean the paper, thus improving convenience.

[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A novel paper curl tester, comprising a base (11), characterized in that... ； The upper end of the base (11) is provided with a measuring structure; The measuring structure includes a pre-tension setting device (12), a pressure plate (13) is fixedly installed on the upper end of the base (11), and multiple length measuring devices (14) are fixedly installed on the upper end of the pressure plate (13). Each length measuring device (14) is located at the four corners of the pressure plate (13). A balance head (15) is slidably installed on the circumferential surface of the pre-tension setting device (12). The lower end of the balance head (15) is provided with a calibration device (16), and the circumferential surface of the pretension setting device (12) is provided with a left-hand thread (18).

2. The novel paper curl tester as described in claim 1, characterized in that, The pretension setting device (12) has a limit ring (17) fixedly installed on its circumferential surface; The left-hand thread (18) is located outside the limiting ring (17).

3. A novel paper curl measuring instrument as described in any one of claims 1-2, characterized in that, A nut (19) is threaded onto the circumferential surface of the left-hand thread (18); The balance head (15) can be fixed to the pretension setting device (12) by means of the nut (19) and the limiting ring (17).

4. The novel paper curl tester as described in claim 3, characterized in that, The base (11) has a fixing block (21) on its side wall, and the upper end of the fixing block (21) has a universal joint (22); The universal joint (22) is provided with an air outlet (23) at its end.

5. A novel paper curl tester as described in claim 4, characterized in that, The lower end of the universal joint (22) is provided with an air inlet pipe (24); The air intake pipe (24) extends to the bottom of the fixing block (21).

6. The novel paper curl tester as described in claim 1, characterized in that, The lower end of the base (11) is provided with multiple adjusting feet (25); Each of the adjustment feet (25) is located at one of the four corners of the base (11).

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