Gluing amount detection device for surface sizing

Abstract

The utility model belongs to the technical field of detection devices in the papermaking technology, and particularly relates to a gluing amount detection device for surface gluing. The gluing amount detection device for surface gluing comprises a gluing lower roller and a lower roller gluing beam, a measuring device is arranged between the gluing lower roller and the lower roller gluing beam, the measuring device comprises a scraping plate, a measuring cylinder, a sleeve, a cantilever arm, a linear bearing, a fixing seat and a track, the track is arranged on the lower roller gluing beam, and the measuring cylinder is arranged on the lower roller gluing beam. A linear bearing is arranged on the track, a fixed seat is arranged on the linear bearing, the fixed seat is axially and movably connected with a cantilever arm, the cantilever arm is connected with a measuring cylinder through a sleeve, the sleeve is provided with a lock catch, a scraping plate is arranged on the measuring cylinder, one end of the scraping plate extends into the measuring cylinder to be fixed, and the other end of the scraping plate extends into the measuring cylinder to be fixed. And the other end is attached to the lower sizing roller. The gluing amount detection device for surface gluing can quickly and accurately detect the gluing amount, and is simple and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection device in papermaking technology, and specifically relates to a glue coating amount detection device for surface sizing. BACKGROUND

[0002] In the production process of high-strength corrugated paper, surface sizing as a key link to improve paper strength, water resistance and printing suitability, the optimization of its process technology is crucial to improve product quality and production efficiency. At present, the mainstream surface sizing technology in the market mainly includes immersion sizing and film transfer sizing. Compared with immersion sizing, film transfer sizing can keep the paper dry at a high level when it comes out of the sizing machine, and has good running stability, so it has been widely favored and applied in recent years.

[0003] The core of the film transfer sizing process is to uniformly coat the glue on the surface of the sizing roller through the precisely controlled metering rod, and then the layer of glue is efficiently transferred to the paper in motion. In order to ensure the uniformity of the sizing effect, i.e. the uniformity of the cross profile glue coating amount, the operator needs to accurately adjust the pressure fine tuning knob of the metering rod air tire. The uniformity of the cross profile glue coating amount is directly related to the quality of the final paper product, including its strength distribution, moisture content and subsequent processing performance.

[0004] However, the existing cross profile glue coating amount detection method has significant shortcomings. The traditional method relies on detecting the absolute dryness of the paper before and after coating, i.e. by sampling when the paper machine is stopped or shut down, using a special device to measure the dry mass change of the paper sample to calculate the glue coating amount. This method is not only complicated and time-consuming, which seriously affects the continuous operation efficiency of the production line, but also is limited to non-production state, making it difficult to realize real-time monitoring and immediate adjustment of the sizing process. In addition, frequent sampling may adversely affect the stable operation of the paper machine, increasing production costs and waste. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems of overcoming the above-mentioned defects in the prior art, and provides a glue coating amount detection device for surface sizing, which can quickly and accurately detect the glue coating amount on the surface of the sizing roller, and is simple and convenient to operate.

[0006] The surface gluing amount detection device of the utility model discloses, including gluing lower roller and lower roller gluing beam, gluing lower roller and lower roller gluing beam between setting up measuring device, measuring device including scraper, measuring cylinder, sleeve, cantilever arm, linear bearing, fixed base, track, the track sets up on lower roller gluing beam, the track is provided with linear bearing, the linear bearing is provided with fixed base, the fixed base with cantilever arm carries out axial movable joint, adopts no gap fit design to reduce the friction and shaking in the movement process, improves the measurement accuracy, cantilever arm is connected with measuring cylinder through sleeve, the sleeve is provided with lock catch, to fixed measuring cylinder, the measuring cylinder is provided with scraper, and one end of scraper is fixed in the inside of measuring cylinder, and the other end is attached on gluing lower roller. Gluing lower roller is connected with lower roller gluing beam.

[0007] Preferably, the gluing lower roller and the gluing upper roller are in contact, and a paper sheet is arranged between the gluing lower roller and the gluing upper roller.

[0008] Preferably, the gluing upper roller is connected with the upper roller gluing beam.

[0009] Preferably, the scraper is made of plastic material and has a square plate structure, is inclinedly placed in the measuring cylinder, one end of the scraper is arc-shaped and adhered to the inner wall of the measuring cylinder, and the other end of the scraper is linear and attached to the gluing lower roller. When the gluing lower roller rotates, the scraper can quickly and accurately scrape off the glue liquid adhered thereto.

[0010] Preferably, the scraper is attached to the gluing lower roller and is provided with a pressure sensor at one end of the scraper, for monitoring the contact pressure between the scraper and the gluing lower roller and / or the amount of scraped glue liquid in real time, so as to realize accurate control and feedback of the glue application amount.

[0011] Preferably, the lock catch is designed to be adjustable, allowing the operator to adjust the fastening degree of the lock catch according to actual needs, so as to ensure the best balance between the stability and flexibility of the measuring cylinder on the cantilever arm. The cantilever arm is designed to be flexible and is axially movably connected to the fixed base, which allows the cantilever arm to freely move in the horizontal direction to adapt to the gluing needs of paper sheets of different widths. One end of the cantilever arm is connected to the sleeve, and the other end is connected to the fixed base through structural design, ensuring the stability of the whole.

[0012] The measuring cylinder is connected to the cantilever arm through the sleeve. The design of the measuring cylinder allows accurate measurement of the volume of glue scraped off by the scraper, thereby calculating the amount of glue applied. The smooth inner wall of the measuring cylinder ensures the accuracy of the glue measurement. The sleeve serves as a bridge connecting the measuring cylinder and the cantilever arm, providing a stable connection. The built-in locking mechanism allows the operator to adjust the position of the measuring cylinder as needed and fix it, ensuring the accuracy of the measurement. The linear bearing is installed on the track, providing a smooth and stable movement path for the fixed seat. The fixed seat, as the support point of the cantilever arm, slides on the track through the linear bearing, allowing the measuring device to freely adjust in the length direction of the glue application roll, enhancing the flexibility and applicability of the device. The track is firmly arranged on the lower roll glue application beam, serving as the reference surface for the linear bearing and fixed seat to slide, ensuring the stability and accuracy of the measuring device during the entire glue application process. The design of the track takes into account the wear resistance and corrosion resistance to prolong the service life.

[0013] The glue application amount detection device for surface sizing uses the scraper at the front end of the measuring device to press on the roll surface of the glue application lower roll. The glue on the roll surface is scraped off by the scraper and falls into the measuring cylinder. By calculating the amount of glue in the measuring cylinder per unit time, the glue application amount at that point of the glue application roll can be obtained. The size of the glue application amount is used to determine whether the pressure of the metering rod air tire needs to be adjusted to maintain the consistency of the cross-section glue application amount.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The glue application amount detection device for surface sizing significantly improves the glue application amount detection efficiency and accuracy, simplifies the operation process, shortens the detection time, and ensures efficient and reliable quality control during production. It has high flexibility and wide applicability, can adapt to different paper width requirements, ensures stable and accurate glue application process, reduces maintenance cost, and ensures continuous production. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the glue application amount detection device for surface sizing.

[0017] Figure 2 It is a structural schematic view of the measuring device.

[0018] In the figure: 1, upper roll glue application beam; 2, glue application upper roll; 3, paper sheet; 4, glue application lower roll; 5, measuring device; 6, lower roll glue application beam;

[0019] 51, scraper; 52, measuring cylinder; 53, sleeve; 54, lock; 55, cantilever arm; 56, linear bearing; 57, fixed seat; 58, track; 59, pressure sensor. DETAILED DESCRIPTION

[0020] The utility model discloses further illustrate below combining specific embodiment.

[0021] As Figure 1 And Figure 2 The surface sizing glue coating amount detection device, the glue application lower roller 4 and the lower roller glue application beam 6 are connected, the measuring device 5 is arranged between the glue application lower roller 4 and the lower roller glue application beam 6, the measuring device 5 includes the scraper 51, the measuring cylinder 52, the sleeve 53, the cantilever arm 55, the linear bearing 56, the fixed seat 57, the track 58, the track 58 is arranged on the lower roller glue application beam 6, the linear bearing 56 is arranged on the track 58, the fixed seat 57 is arranged on the linear bearing 56, the fixed seat 57 is axially movably connected with the cantilever arm 55, adopts the gapless fit design to reduce the friction and the shaking in the movement process, improves the measuring accuracy, the sleeve 53 is connected with the measuring cylinder 52 through the sleeve 53, the sleeve 53 is provided with the lock catch 54 to fix the measuring cylinder 52, the measuring cylinder 52 is provided with the scraper 51, one end of the scraper 51 is fixed in the measuring cylinder 52, and the other end is attached to the glue application lower roller 4.

[0022] The glue application lower roller 4 is adjacent to the glue application upper roller 2, and the paper sheet 3 is arranged between the glue application lower roller 4 and the glue application upper roller 2.

[0023] The glue application upper roller 2 is connected with the upper roller glue application beam 1.

[0024] The scraper 51 is of plastic material and is a square plate structure, is obliquely placed in the measuring cylinder 52, one end is arc-shaped and is bonded with the inner wall of the measuring cylinder 52, the other end is linear, and is attached to the glue application lower roller 4, when the glue application lower roller 4 rotates, the scraper 51 can quickly and accurately scrape the glue liquid attached thereto.

[0025] One end of the scraper 51 attached to the glue application lower roller 4 is provided with a pressure sensor 59 for real-time monitoring of the contact pressure between the scraper 51 and the glue application lower roller 4 and / or the amount of scraped glue liquid, to realize accurate control and feedback of the glue coating amount.

[0026] The lock catch 54 is designed to be adjustable, allowing the operator to adjust the fastening degree of the lock catch according to actual needs, to ensure the best balance between the stability and flexibility of the measuring cylinder 52 on the cantilever arm 55. The cantilever arm 55 is designed flexibly, and is axially movably connected to the fixed seat 57, and this design allows the cantilever arm to move freely in the horizontal direction to adapt to the glue application needs of paper sheets of different widths. One end of the cantilever arm is connected to the sleeve 53, and the other end is connected to the fixed seat 57 through structural design, ensuring the stability of the whole.

[0027] The measuring cylinder 52 is the core component for measuring the glue liquid volume. The measuring cylinder 52 is connected with the cantilever arm 55 through the sleeve 53. The design of the measuring cylinder 52 allows accurate measurement of the volume of the glue liquid scraped by the scraper 51, so as to calculate the glue application amount. The inner wall of the measuring cylinder 52 is smooth, which ensures the accuracy of the glue liquid measurement. The sleeve 53 serves as a bridge connecting the measuring cylinder 52 and the cantilever arm 55. The sleeve 53 not only provides a stable connection, but also allows the operator to adjust the position of the measuring cylinder and fix it according to the needs through the built-in lock 54 mechanism, thereby ensuring the accuracy of the measurement. The linear bearing 56 is installed on the track 58 to provide a smooth and stable movement path for the fixed seat 57. The fixed seat serves as the support point of the cantilever arm. Through the sliding of the linear bearing on the track, the measuring device can be freely adjusted in the length direction of the glue application roller 4, thereby enhancing the flexibility and applicability of the device. The track 58 is firmly arranged on the lower roller glue application beam 6 and serves as the reference surface for the sliding of the linear bearing 56 and the fixed seat 57, thereby ensuring the stability and accuracy of the measuring device 5 during the entire glue application process. The track 58 is designed to be wear-resistant and corrosion-resistant to prolong the service life.

[0028] The glue application amount detection device for surface sizing is used. The scraper 51 at the front end of the measuring device 5 is pressed on the roller surface of the glue application lower roller 4. The glue liquid on the roller surface is scraped by the scraper and falls into the measuring cylinder 52. The glue liquid amount in the measuring cylinder per unit time is calculated, and the glue application amount of the glue application roller at this point is obtained. Whether the pressure of the metering rod air tire needs to be adjusted is determined according to the size of the glue application amount, so as to keep the consistency of the cross-section glue application amount.

[0029] Of course, the above content is only a preferred embodiment of the present application, and cannot be considered as limiting the scope of the embodiments of the present application. The present application is not limited to the above examples. Any equivalent changes and improvements made by ordinary skilled in the art within the scope of the present application should be attributed to the patent coverage of the present application.

Claims

1. A device for detecting the amount of sizing applied to a surface, characterized by: The application relates to a glueing lower roller (4) and a lower roller glueing beam (6), wherein a measuring device (5) is arranged between the glueing lower roller (4) and the lower roller glueing beam (6), the measuring device (5) comprises a scraper (51), a measuring cylinder (52), a sleeve (53), a cantilever arm (55), a linear bearing (56), a fixing base (57) and a track (58), the track (58) is arranged on the lower roller glueing beam (6), the linear bearing (56) is arranged on the track (58), the fixing base (57) is axially movably connected with the cantilever arm (55), the cantilever arm (55) is connected with the measuring cylinder (52) through the sleeve (53), the sleeve (53) is provided with a lock buckle (54), the measuring cylinder (52) is provided with the scraper (51), one end of the scraper (51) is fixed in the measuring cylinder (52), and the other end of the scraper (51) is abutted against the glueing lower roller (4).

2. The sizing coat weight detection device for surface sizing according to claim 1, characterized in that: The glueing lower roller (4) is abutted against a glueing upper roller (2), and a paper sheet (3) is arranged between the glueing lower roller (4) and the glueing upper roller (2).

3. The sizing and glue application detection device of claim 2, wherein: The glueing upper roller (2) is connected with an upper roller glueing beam (1).

4. The sizing coat weight detection device for surface sizing according to claim 1, characterized in that: The scraper (51) is made of plastic and has a square plate structure, is obliquely arranged in the measuring cylinder (52), has a circular arc-shaped one end which is bonded with the inner wall of the measuring cylinder (52), and has a straight line-shaped other end which is abutted against the glueing lower roller (4).

5. The sizing and glue application detection apparatus of claim 4, wherein: One end of the scraper (51) abutted against the glueing lower roller (4) is provided with a pressure sensor (59).

6. The sizing coat weight detection apparatus for surface sizing according to claim 1, characterized in that: The lock buckle (54) is designed to be adjustable.

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