阅读说明：本技术 一种高精度定位的纸张卷曲度检测装置 (High-precision positioning paper curling degree detection device ) 是由 朱小利 朱红艳 贾伟萍 刘冬 吴胜军 吴凯 褚玮 柳长红 陈思思 茹意 孙鹏 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种高精度定位的纸张卷曲度检测装置,本申请通过激光灯可以有效定位靶点,减少每次拍摄的手动人为误差,同时也大大减少了定位时间,提高了检测效率；本发明通过尖锐部和尖锐槽的配合使用,可以更好的减少水平杆与水平台之间的活动间隙,减少摄像头的抖动,防止抖动拍摄造成照片模糊,增大测量难度和误差；本发明通过恒温恒湿的试验箱来保证纸张卷曲过程及纸张测量操作的恒定环境,避免了环境的不稳定性,造成检测的误差；本发明通过摄像头进行纸张卷曲后的拍照记录,不仅可在照片上直观准确的进行测量,同时也大大避免人工卡尺手动测量,避免了人工操作时,手动改变卷曲效果,进而影响了测量值。(The invention discloses a high-precision positioning paper curling degree detection device, which can effectively position a target point through a laser lamp, reduce manual human errors of shooting each time, greatly reduce positioning time and improve detection efficiency; the invention can better reduce the movable clearance between the horizontal rod and the horizontal platform, reduce the shaking of the camera, prevent the blurring of pictures caused by shaking shooting and increase the measurement difficulty and error by matching the sharp part and the sharp groove; the paper curling process and the constant environment of the paper measuring operation are ensured through the constant-temperature and constant-humidity test box, and the detection error caused by the instability of the environment is avoided; according to the invention, the shooting record of the curled paper is carried out through the camera, so that the measurement can be visually and accurately carried out on the picture, meanwhile, the manual measurement of a manual caliper is greatly avoided, and the phenomenon that the curling effect is manually changed during manual operation, and further the measured value is influenced is avoided.)

1. The utility model provides a paper crimpness detection device of high accuracy location for carry out the crimpness experiment and measure the paper under constant temperature and humidity state, its characterized in that: comprises a test box (1) for providing a constant temperature and humidity environment for paper to be tested, a camera (2) arranged in the test box (1) and used for photographing and recording the curled state of the paper, a laser lamp (6) used for positioning the photographing position of the camera (2), a lighting lamp (7) used for illuminating the interior of the test box (1), and a plurality of clamping units (4) arranged at the bottom of the test box (1) and used for clamping the paper to enable the paper to be curled naturally, wherein a standard part (41) detachably fixed at the bottom of the test box (1) and used for performing comparison measurement and calculation after photographing is arranged on each clamping unit (4), the paper is unfolded and clamped on each clamping unit (4) in the vertical direction, the unfolding plane of the paper is parallel to the photographing direction of the camera (2), and a terminal device (5) used for receiving and storing the photographing data of the camera (2), the terminal equipment (5) is electrically connected with the camera (2); and a target point (411) for positioning the laser lamp (6) is arranged on the standard part (41).

2. A high-precision positioning paper curl detection device as defined in claim 1, characterized in that: the device also comprises a horizontal moving device (3) used for fixing the camera (2) and enabling the camera to move along the horizontal direction.

3. A high-precision positioning paper curl detection device according to claim 2, characterized in that: the horizontal moving device (3) comprises a horizontal rod (31) fixed at two ends of the inner side of the test box (1), a horizontal table (32) which is connected to the horizontal rod (31) in a horizontally sliding mode and used for fixing the camera (2), and a handle (33) of which one end is fixed on the horizontal table (32) and the other end extends out of the test box (1) and used for holding and moving.

4. A high-precision positioning paper curl detection device according to claim 3, characterized in that: one end of the horizontal table (32) close to the horizontal rod (31) is provided with an upper roller (321) and a lower roller (322) which are used for rolling on the horizontal rod (31); the horizontal rod (31) is provided with a groove (311) used for being matched with the upper roller (321) and the lower roller (322).

5. The paper curl detection device with high precision positioning according to claim 4, wherein: the upper roller (321) and the lower roller (322) are respectively provided with two groups in parallel.

6. The paper curl detection device with high precision positioning according to claim 5, wherein: the upper roller (321) and the lower roller (322) are both provided with sharp parts (323), and the grooves (311) are both provided with sharp grooves (312) matched with the sharp parts (323).

7. A high-precision positioning paper curl detection device according to claim 3, characterized in that: the handle (33) comprises a holding part (331) for holding and a connecting part (332) which penetrates through the test box (1) and is fixedly connected to the horizontal table (32).

8. A paper curl detection device with high precision positioning as recited in claim 7, wherein: the top of the test box (1) is provided with a sealing element (11) which keeps sealing with the outside, and the sealing element (11) is provided with a gap (111) which is used for the connection part (332) to pass through and can horizontally reciprocate.

9. A high-precision positioning paper curl detection device according to claim 3, characterized in that: the top end of the handle (33) is provided with a button (333) used for controlling the camera (2) to shoot.

10. A high-precision positioning paper curl detection device as defined in claim 1, characterized in that: the clamping unit (4) comprises a supporting piece (42) which is vertically arranged on the standard piece (41) and used for supporting paper in a vertically unfolded state, and a clamping piece (43) of which one end is movably connected to the bottom of the supporting piece (42) and the other end can be clamped at the bottom of the supporting piece (42) and used for clamping and fixing the paper on the supporting piece (42).

Technical Field

The invention relates to the technical field of paper detection, in particular to a high-precision positioning paper curling degree detection device.

Background

The "curl" of the paper means the occurrence of wrinkles or warps in the direction perpendicular to the paper feeding direction. The two sides of the paper or finished product curl upwards when viewed along the paper feeding direction. Due to the rapid development of the mechanization and automation of modern packaging machinery, the requirement of a printing company on paper is higher and higher, once the paper raw material is curled, paper feeding of each process on a production line can be seriously influenced, paper jam and fold blurring are caused, the quality of paper printing treatment is reduced, and meanwhile, the efficiency of the production line is greatly reduced.

Moreover, one side of the printed finished paper is covered and printed by ink or gloss oil, so that moisture is difficult to combine with the paper, and the other side of the printed finished paper is not treated, so that the printed finished paper is easily influenced by environmental humidity during storage, absorbs moisture and curls in one direction of the paper, the delivery quality of the paper is influenced, and meanwhile, a large amount of waste products are generated in the transportation and use processes, and the utilization rate of the finished paper is influenced.

The curling of the paper is mainly caused by the tension difference between the front and back sides of the paper and the humidity change on the surface of the paper. The thin paper has a certain thickness, if the tension of the front and back surfaces of the paper is inconsistent due to the fact that one side (or two sides) of the paper is affected with damp, and the stiffness of the fiber direction of the printing paper feeding is generally better than that of the transverse direction, the paper is bound to curl under the combined action of the two.

The curling degree of the paper is an important evaluation index in the paper manufacturing industry, the detection result directly influences the production efficiency and the ex-warehouse quality of the paper, and of course, paper curling degree detection equipment and accuracy are also the core key points of the index, but the measurement of the curling degree of the paper is basically manually measured by a vernier caliper at present, and the artificial error is large; meanwhile, the placing and forming of the sample paper to be measured and the measuring environment cannot be guaranteed, and the temperature and humidity change can cause secondary curling change to the sample paper to be measured during measurement, so that the true value of the curling degree of the paper is influenced.

Disclosure of Invention

The invention aims to provide a paper curling degree detection device with high-precision positioning, aiming at the defects of the prior art, and the paper curling degree detection device can accurately and quickly measure the paper curling degree.

The invention provides a high-precision positioning paper curling degree detection device, which is used for performing curling degree test and measurement on paper in a constant temperature and humidity state, and comprises a test box, a camera, a laser lamp, an illuminating lamp and a plurality of clamping units, wherein the test box is used for providing a constant temperature and humidity environment for the paper to be measured, the camera is arranged in the test box and is used for photographing and recording the curled state of the paper, the laser lamp is used for positioning the photographing position of the camera, the illuminating lamp is used for illuminating the interior of the test box, the clamping units are arranged at the bottom of the test box and are used for clamping the paper so that the paper can be curled naturally, the clamping units are provided with standard parts which are detachably fixed at the bottom of the test box and are used for performing comparison measurement calculation after photographing, the paper is unfolded and clamped on the clamping units in the vertical direction, the unfolding plane of the paper is parallel to the photographing direction of the camera, and terminal, the terminal equipment is electrically connected with the camera; and the standard component is provided with a target point for positioning the laser lamp.

Further, the device also comprises a horizontal moving device used for fixing the camera and enabling the camera to move along the horizontal direction.

Furthermore, the horizontal moving device comprises a horizontal rod fixed at two ends of the inner side of the test box, a horizontal table which is connected to the horizontal rod in a horizontally sliding manner and used for fixing the camera, and a handle, one end of which is fixed on the horizontal table, and the other end of which extends out of the test box and is used for holding and moving.

Furthermore, one end of the horizontal platform, which is close to the horizontal rod, is provided with an upper roller and a lower roller which are used for rolling on the horizontal rod; the horizontal rod is provided with a groove used for being matched with the upper roller and the lower roller.

Furthermore, the upper roller and the lower roller are respectively provided with two groups in parallel.

Further, the upper roller and the lower roller are provided with sharp parts, and the grooves are provided with sharp grooves matched with the sharp parts for use.

Further, the handle comprises a holding part for holding and a connecting part which penetrates through the test box and is fixedly connected to the horizontal table.

Further, a sealing piece which is sealed with the outside is arranged at the top of the test box, and the sealing piece is provided with a gap which is used for the connection part to penetrate through and can horizontally reciprocate.

Furthermore, a button used for controlling the camera to shoot is arranged at the top end of the handle.

Furthermore, the clamping unit comprises a supporting piece and a clamping piece, wherein the supporting piece is vertically arranged on the standard piece and used for supporting the paper in a vertically unfolded state, one end of the clamping piece is movably connected to the bottom of the supporting piece, and the other end of the clamping piece can be clamped at the bottom of the supporting piece and used for clamping and fixing the paper on the supporting piece. .

The paper curling degree detection device with high-precision positioning has the following excellent effects:

(1) the laser lamp can effectively position the target point, the shooting and positioning of the camera can be more accurately carried out, the manual human error of each shooting is reduced, the positioning time is greatly reduced, and the detection efficiency is improved;

(2) the fluorescent lamp tube is arranged below the horizontal rod in parallel, so that the curling condition of paper and the photo effect during photographing can be better observed during detection, and the fluorescent lamp tube adopts a variable resistance switch, so that the brightness in the test box can be better adjusted according to the requirement;

(3) the invention can better reduce the movable clearance between the horizontal rod and the horizontal table, reduce the shake of the camera brought by the horizontal table when moving, prevent the blurring of pictures caused by shake shooting and increase the measurement difficulty and error by matching the sharp part and the sharp groove;

(4) this application is equipped with two sets ofly through last gyro wheel and lower gyro wheel level, the stability that the increase horizontal stand that can be better removed.

(5) The paper curling process and the constant environment of the paper measuring operation are ensured through the constant-temperature constant-humidity test box, and the detection error caused by the instability of the environment in the paper curling process and the paper measuring operation process is avoided;

(6) according to the invention, the shooting record of the curled paper is carried out through the camera, and the comparison measurement calculation is carried out on the picture and the standard part, so that the measurement can be visually and accurately carried out on the picture, meanwhile, the manual measurement of a manual caliper is greatly avoided, and the curling effect is prevented from being manually changed during manual operation, thereby further influencing the measurement value;

(7) the photos of different sample papers to be tested can be stored for a long time after being photographed and recorded by the camera, so that the curling characteristics of the papers with different batch numbers and types can be traced;

(8) the camera is manually positioned, and the camera is clicked to shoot, so that the operation is simple and rapid;

(9) the invention can realize the simultaneous test and detection of a single group of multiple samples, greatly improves the contrast among different samples and simultaneously improves the detection efficiency;

(10) the invention can flexibly simulate different test and detection environments and provides strong test guarantee for application research of paper in extreme environments.

Drawings

FIG. 1 is a schematic structural diagram of a high-precision positioning paper curl detection apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of a high-precision positioning paper curl detection apparatus according to an embodiment of the present invention;

FIG. 3 is a top view of a horizontal movement device of the paper curl detection device with high precision positioning according to an embodiment of the present invention;

FIG. 4 is a side view of a horizontal movement device of a high-precision positioning paper curl detection device according to an embodiment of the present invention;

FIG. 5 is a side view of a horizontal bar of a high-precision positioning paper curl detection apparatus according to an embodiment of the present invention;

FIG. 6 is a side view of a clamping unit of a high-precision positioning paper curl detection device according to an embodiment of the present invention;

FIG. 7 is a top view of a clamping unit of the paper curl detection device with high precision positioning according to the embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a clamping unit of the paper curl detection device with high precision positioning according to the embodiment of the present invention;

fig. 9 is a schematic diagram of a photo measurement of a paper curl detection apparatus with high precision positioning according to an embodiment of the present invention.

In the figure: 1-test chamber, 11-sealing element, 111-gap, 12-observation window, 2-camera, 3-horizontal moving device, 31-horizontal rod, 311-groove, 312-sharp groove, 32-horizontal table, 321-upper roller, 322-lower roller, 323-sharp part, 33-handle, 331-handle, 332-connecting part, 333-button, 4-clamping unit, 41-standard, 411-target, 42-supporting part, 43-clamping part, 5-terminal equipment, 6-laser lamp and 7-lighting lamp.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following will describe the specific embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort. In addition, the term "orientation" merely indicates a relative positional relationship between the respective members, not an absolute positional relationship.

Please refer to fig. 1 and fig. 2. The paper curling degree detection device with high precision positioning, provided by the embodiment of the invention, is used for carrying out curling degree test and measurement on paper in a constant temperature and humidity state, and is characterized in that: the paper rolling test device comprises a test box 1 used for providing a constant temperature and humidity environment for paper to be tested, a camera 2 arranged in the test box 1 and used for photographing and recording the rolled state of the paper, a laser lamp 6 used for positioning the photographing position of the camera 2, a lighting lamp 7 used for illuminating the interior of the test box 1, a plurality of clamping units 4 arranged at the bottom of the test box 1 and used for clamping the paper to enable the paper to be rolled naturally, a standard part 41 detachably fixed at the bottom of the test box 1 and used for carrying out comparison measurement and calculation after photographing is arranged on each clamping unit 4, the paper is unfolded and clamped on each clamping unit 4 in the vertical direction, the unfolding plane of the paper is parallel to the photographing direction of the camera 2, and terminal equipment 5 used for receiving and storing photographing data of the camera 2, and the terminal equipment 5 is electrically connected with the camera 2; the standard part 41 is provided with a target point 411 for positioning the laser lamp 6.

The switches of the laser lamp 6 and the illuminating lamp 7 are arranged on the outer side of the test box 1, so that the manual control of an operator is facilitated.

Please refer to fig. 3. And a horizontal moving device 3 for fixing the camera 2 and moving it in a horizontal direction.

The horizontal moving device 3 includes a horizontal rod 31 fixed at two ends of the inner side of the test chamber 1, a horizontal table 32 connected to the horizontal rod 31 in a horizontally sliding manner for fixing the camera 2, and a handle 33 having one end fixed to the horizontal table 32 and the other end extending out of the test chamber 1 for holding and moving.

Please refer to fig. 4 and 5. An upper roller 321 and a lower roller 322 which are used for rolling on the horizontal rod 31 are arranged at one end of the horizontal platform 32 close to the horizontal rod 31; the horizontal bar 31 is provided with a groove 311 for cooperating with the upper roller 321 and the lower roller 322. The upper roller 321 and the lower roller 322 are respectively provided with two groups in parallel. The upper roller 321 and the lower roller 322 are both provided with sharp parts 323, and the grooves 311 are both provided with sharp grooves 312 matched with the sharp parts 323.

The grip 33 includes a grip 331 for gripping and a connecting portion 332 that passes through the test chamber 1 and is fixedly connected to the horizontal table 32.

The top of the test chamber 1 is provided with a sealing member 11 which is sealed with the outside, the sealing member 11 is provided with a gap 111 which is used for the connecting part 332 to pass through and can horizontally reciprocate, and an observation window 12 which is used for an operator to observe the internal condition or position the camera 2 is arranged beside the sealing member 11.

The sealing member 11 of the present application is made of elastic silicone or latex, which is not only soft for the connecting portion 332 to operate in the gap 111 thereof, but also forms a better sealing effect at the position where the connecting portion 332 does not operate. A rectangular silica gel pad is cut into a line at the middle position to form a gap 111, and the silica gel pad is adhered to the top of the test chamber 1.

The observation window 12 is made of transparent material, and the glass is adopted in the embodiment of the invention.

The top end of the handle 33 is provided with a button 333 for controlling the shooting of the camera 2.

Please refer to fig. 6, 7 and 8. The clamping unit 4 includes a supporting member 42 vertically disposed on the standard member 41 for supporting the paper in a vertically unfolded state, and a locking member 43 having one end movably connected to the bottom of the supporting member 42 and the other end being locked to the bottom of the supporting member 42 for clamping and fixing the paper on the supporting member 42.

The standard member 41 of the present invention can be selectively used according to the actually detected sample, and the length of the standard member 41 is preferably identical to the length of the curling direction of the sample paper, which further facilitates the later image measurement.

The working principle of the device is as follows: after a sample to be tested is fixed on the clamping unit 4, a door of the device is closed, the device is opened, a target temperature and humidity value is set, and the sample is taken out without opening the door after the specified detection time is over, the method is expensive in that an operator can directly outside the device, the laser lamp 6 is started through the observation window 12, the irradiation direction of the laser lamp 6 is parallel to the shooting direction of the camera 2, the cursor of the laser lamp 6 is aligned to the target point 411 on the standard component 41 through the handheld control handle 33, the optimal position of the camera 2 for shooting sample paper is obtained, the central position of the camera 2 is as close to the right upper part of the paper as possible so as to reduce the actual error caused by the edge focal length, but as the sample cutting range is between 5 cm and 10cm, the error can be ignored at this time, the position is the optimal distance obtained by multiple verification tests, at this time, the camera 2 photographing button 333 is pressed down quickly, and after the camera 2 photographs, the picture data is transmitted to the PC side of the computer or the memory card.

Please refer to fig. 9. The length L ', the chord length C ', and the distance h ' from the standard 41 to the arc top in the same photograph are measured respectively by using a ruler, and since the actual length L of the standard 41 is known, the actual C and h can be obtained by a similarity ratio, and then the C and h are substituted into a formula

The K value of the degree of curling can be obtained.

The camera 2 can also be directly driven and positioned by adopting equipment such as a motor, an electric cylinder and the like, so that the requirements of rapidness and automation are met; meanwhile, the electronic picture can be directly processed at the PC end through software, and the result can be directly displayed at the PC end through calculation and comparison of the pixels.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.