Glue quantifying device for paper mounting machine

Abstract

The invention aims to provide a glue quantifying device for a paper mounting machine, and relates to the field of printing and packaging machinery, the glue quantifying device comprises a glue injection device, the glue injection device comprises a glue barrel, a glue nozzle and a collecting tank, and glue can be more completely and uniformly attached to an anilox roller; the gluing device comprises a placing plate, a supporting plate, a mounting plate and a first feeding belt group, and can convey paper to the position above the anilox roller, so that the paper is glued; the material receiving device comprises a limiting plate, a second feeding belt group and a guide plate, so that the paper can be glued in order; the glue collecting device comprises a sliding rod, a worm and a check block, the width of glue between the anilox roller and the glue roller can be limited through the check block, redundant glue is prevented from being coated on paper, glue overflowing and glue discharging during paper mounting are avoided, glue waste is reduced, and meanwhile the paper mounting quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of printing and packaging machinery, and particularly to a glue metering device for a paper pasting machine. Background Art

[0002] For existing glue coating equipment of paper pasting machines, the paper is coated with glue through an anilox roll. However, in order to adapt to papers of different sizes, the length of the anilox roll is much greater than that of the paper. When coating the paper with glue, it will cause the glue on the two ends of the roll body of the anilox tube not to be used, and finally dry and waste. At the same time, it will also make the edges of the paper easily stained with glue, resulting in glue overflow and bleeding during the paper pasting process. First, it causes waste of glue, and second, it makes the pasted paper prone to adhesion due to the overflowing glue, finally affecting the quality of pasting.

[0003] For example, an automatic glue amount adjusting mechanism proposed in CN202110765836.0 includes two glue coating wallboards, a glue coating roll, two glue adjusting wallboards, two glue adjusting connecting plates, a glue adjusting roll, an automatic glue adjusting worm, two automatic glue adjusting turbines, two supports, two automatic glue adjusting square threads, two locking sleeves, an automatic glue adjusting belt pulley, a servo motor, and a synchronous belt located at the glue coating station. In the present invention, the servo motor drives the automatic glue adjusting belt pulley in sequence according to the instructions of the control system, so that the automatic glue adjusting worm, the automatic glue adjusting worm wheel, the automatic glue adjusting square thread, the glue adjusting wallboard and the glue adjusting connecting plate act, and the glue adjusting roll moves horizontally, thereby realizing precise adjustment of the gap size between the glue adjusting roll and the glue coating roll, achieving the purpose of automatically adjusting the glue amount. The beneficial effects are simple operation, saving labor and raw materials, reducing the working intensity; automatic data control, high-efficiency and precise adjustment, good consistency, and can effectively improve the working efficiency of the paper pasting machine and the quality of pasted products, but it does not solve the above problems.

[0004] The present invention can control the width of the glue on the anilox roll through the provided glue collecting device, so that the glue width fits the size of the paper, avoiding waste of glue and also avoiding glue overflow on the paper during pasting. Summary of the Invention

[0005] To solve the above problems, the object of the present invention is to provide a glue metering device for a paper pasting machine. The glue metering device for a paper pasting machine can control the width of the glue on the anilox roll through the provided glue collecting device, so that the glue width fits the size of the paper, avoiding waste of glue and also avoiding glue overflow on the paper during pasting.

[0006] The present invention provides a glue metering device for a paper laminating machine, which includes a base, an anilox roll, and a rubber roll. The base is disposed on a working plane, and a connection end is provided at the rear of the base. An installation seat is mounted on the base through an electric lifting guide rail. The anilox roll is rotatably mounted on the installation seat, and the rubber roll is mounted on the installation seat. A narrow gap of 1-5 mm is left between the anilox roll and the rubber roll. Uniform and staggered shallow grooves are formed on the anilox roll. A main power motor is provided on the base, and a first guide wheel is provided on the side of the base. A second guide wheel is slidably mounted on the side of the base, and a spring is provided to connect the second guide wheel and the base. One end of the anilox roll is power-connected to the main power motor through a transmission belt, and the transmission belt is also mounted on the first guide wheel and the second guide wheel. The second guide wheel keeps the transmission belt tight through the spring. The device further includes a glue injection device disposed above the rubber roll, a glue coating device disposed above the anilox roll, a material receiving device disposed obliquely above the glue coating device, and a glue collecting device disposed above the anilox roll and the rubber roll.

[0007] Further, the glue injection device includes a glue bucket, a glue nozzle, and a collecting groove. The glue bucket is placed on one side of the base. A cover plate is provided on the glue bucket, and a liquid pump is provided on the cover plate. The liquid pump can discharge the glue in the glue bucket through an output port. A notch is provided on one side of the cover plate. A connecting plate is provided below the glue nozzle, and the connecting plate is fixed on the installation seat. A plurality of glue outlets are provided in front of the glue nozzle, and the glue outlets are located between the anilox roll and the rubber roll. One side of the glue nozzle is connected to the output port of the liquid pump through a hose. The collecting groove is fixed on the installation seat, and the collecting groove is located below the anilox roll and the rubber roll. One end of the collecting groove passes through the installation seat to above the glue bucket. The cross-section of the collecting groove is "V"-shaped, and a through hole matching the collecting groove is formed on the installation seat.

[0008] Further, the glue coating device includes a placement plate, a support plate, a mounting plate, and a first feeding belt group. The placement plate is fixed on the installation seat and is located above the anilox roll. The support plate is fixed on the installation seat and is located below the anilox roll. The mounting plate is fixed on the inner side of the upper end of the base. The first feeding belt group is mounted on the mounting plate and is located above the placement plate, the anilox roll, and the support plate. A motor is fixed on the mounting plate, and the output shaft of the motor is power-connected to the first feeding belt group through a transmission belt.

[0009] Further, the support plates are vertically fixed and arranged horizontally and evenly.

[0010] Further, the upper surfaces of the placement plate and the support plate are on the same plane, and this plane is tangent to the cross-sectional circle of the anilox roll. The angle between this plane and the working plane is 35°-50°.

[0011] Further, the material receiving device includes a limiting plate, a second feeding belt group, and a guiding plate. The limiting plate is fixed on the mounting plate and is located above the placement plate. The second feeding belt group is disposed on the limiting plate and is power-connected to the output shaft of the motor on the mounting plate through a transmission belt. The guiding plate is rotatably mounted on the limiting plate.

[0012] Further, the upper end of the limit plate is upturned, the guide plate is bent, and the hinge point between the guide plate and the limit plate is located at 1 / 3 - 1 / 4 of the upper end of the guide plate.

[0013] Further, the glue collecting device includes a sliding rod, a worm, and a stop block. The sliding rod is fixed on the mounting seat, the worm is rotatably mounted on the mounting seat, a motor is provided on the mounting seat, the output shaft of the motor is in power connection with the worm, the stop block is mounted on the worm, and is slidably mounted on the sliding rod.

[0014] Further, two arc-shaped notches are provided below the stop block, the two arc-shaped notches respectively fit with the anilox roll and the rubber roll, a glue suction hole is provided on the stop block, the front of the stop block is a slope, a slider is slidably mounted on the slope, a spring is provided at the upper end of the slider to connect with the stop block, and a scraper is fixed at the lower end of the slider.

[0015] Further, the glue suction hole is in the shape of a funnel with a large front and a small rear, and the rear end of the glue suction hole is connected to the input port of the liquid pump through a hose.

[0016] Beneficial effects: 1. The mounting seat is installed on the base through an electric lifting guide rail, the anilox roll is rotatably mounted on the mounting seat, the rubber roll is mounted on the mounting seat, the mounting plate is fixed to the inner side of the upper end of the base, the first feeding belt group is mounted on the mounting plate, a motor is fixed on the mounting plate, and the output shaft of the motor is in power connection with the first feeding belt group through a transmission belt. The height of the mounting seat can be adjusted through the electric lifting guide rail, so as to change the distance between the anilox roll and the first feeding belt group, thus fitting papers of different thicknesses and improving the practicability.

[0017] 2. The glue bucket is placed on one side of the base, a cover plate is provided on the glue bucket, a liquid pump is provided on the cover plate, the anilox roll is rotatably mounted on the mounting seat, the rubber roll is mounted on the mounting seat, the collecting tank is located below the anilox roll and the rubber roll, one end of the collecting tank passes through the mounting seat to above the glue bucket, the cross section of the collecting tank is "V"-shaped, and a through hole fitting the collecting tank is opened on the mounting seat. A groove for temporarily storing glue can be formed by the rubber roll and the anilox roll, so that the glue can be more completely and evenly attached to the anilox roll, and at the same time, the collecting tank below also avoids the dripping and waste of the glue.

[0018] 3. The upper end of the limit plate is upturned, the guide plate is bent, and the hinge point between the guide plate and the limit plate is located at 1 / 3 - 1 / 4 of the upper end of the guide plate. The upper end of the guide plate can slow down and guide the paper transported at high speed, so that the paper is coated with glue in an orderly manner.

[0019] 4. The slide bar is fixed on the mounting base, the worm is rotatably mounted on the mounting base, a motor is provided on the mounting base, the output shaft of the motor is power-connected to the worm, a stopper is mounted on the worm, two arc-shaped notches are provided below the stopper, a glue suction hole is provided on the stopper, the front of the stopper is a slope, and a slider is slidably mounted on the slope. The lower end of the slider is fixed with a scraper. It can limit the width of the glue between the anilox roll and the rubber roll through the stopper, suck out the excess glue through the glue suction hole, and can also scrape the glue on the anilox roll through the slider and the scraper on the stopper, thereby limiting the coating width of the glue on the anilox roll, preventing the excess glue from being coated on the paper, avoiding the overflow of glue during the pasting of the paper, reducing the waste of glue, and at the same time ensuring the quality of the paper pasting.

[0020] For the realization of the purpose, functional features and advantages of the present invention, further descriptions will be made with reference to the embodiments and the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the schematic diagram of the overall structure of the present invention Figure 1 .

[0022] Figure 2 is the schematic diagram of the overall structure of the present invention Figure 2 .

[0023] Figure 3 is the exploded view of the present invention.

[0024] Figure 4 is the schematic diagram of the overall structure of the present invention Figure 3 .

[0025] Figure 5 is the exploded view of the placement plate structure of the glue application device of the present invention.

[0026] Figure 6 is the exploded view of the slider structure of the glue collection device of the present invention.

[0027] Figure 7 is the cross-sectional view of the slider structure of the glue collection device of the present invention.

[0028] Figure 8 is the schematic diagram of the overall structure of the material receiving device of the present invention Figure 1 .

[0029] Figure 9 is the schematic diagram of the overall structure of the material receiving device of the present invention Figure 2 .

[0030] Reference numerals: base 1; mounting seat 2; anilox roller 3; rubber roller 4; slide bar 5; worm 6; stopper 7; slider 8; squeegee 9; glue suction hole 10; glue bucket 11; cover plate 12; liquid pump 13; glue nozzle 14; collection tank 15; main power motor 16; first guide wheel 17; second guide wheel 18; placing plate 19; support plate 20; mounting plate 21; first feeding belt group 22; limiting plate 23; second feeding belt group 24; guide plate 25. Detailed implementation manners

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In order to simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0032] Next, a glue metering device for a paper pasting machine according to an embodiment of the present invention will be described with reference to the accompanying drawings, as Figure 1 - Figure 9 shown. The glue metering device for a paper pasting machine includes a base 1, an anilox roller 3 and a rubber roller 4. The base 1 is disposed on a working plane. A connection end is provided behind the base 1 for connecting an external feeding device. The mounting seat 2 is installed on the base 1 through an electric lifting guide rail. The anilox roller 3 is rotatably installed on the mounting seat 2. The rubber roller 4 is installed on the mounting seat 2. A narrow gap of 1-5 mm is left between the anilox roller 3 and the rubber roller 4. Uniformly distributed and staggered shallow grooves are formed on the anilox roller 3. The main power motor 16 is provided on the base 1. The first guide wheel 17 is provided on the side of the base 1. The second guide wheel 18 is slidably installed on the side of the base 1, and a spring is provided to connect the second guide wheel 18 and the base 1. One end of the anilox roller 3 is power-connected to the main power motor 16 through a transmission belt. The transmission belt is also installed on the first guide wheel 17 and the second guide wheel 18. The second guide wheel 18 keeps the transmission belt tight through a spring. The glue metering device for a paper pasting machine further includes a glue injection device disposed above the rubber roller 4, a glue coating device disposed above the anilox roller 3, a material receiving device disposed obliquely above the glue coating device, and a glue collecting device disposed above the anilox roller 3 and the rubber roller 4.

[0033] As Figure 4 and Figure 5As shown in the figure, the glue metering device for the paper pasting machine includes a glue injection device. The glue injection device includes a glue bucket 11, a glue nozzle 14 and a collection tank 15. The glue bucket 11 is placed on one side of the base 1. A cover plate 12 is provided on the glue bucket 11, and a liquid pump 13 is provided on the cover plate 12. The liquid pump 13 can discharge the glue in the glue bucket 11 through the output port. There is a notch on one side of the cover plate 12. A connecting plate is provided below the glue nozzle 14, and the connecting plate is fixed on the mounting seat 2. There are multiple glue outlets in front of the glue nozzle 14, and the glue outlets are located between the anilox roll 3 and the glue roll 4. One side of the glue nozzle 14 is connected to the output port of the liquid pump 13 through a hose. The collection tank 15 is fixed on the mounting seat 2, and the collection tank 15 is located below the anilox roll 3 and the glue roll 4. One end of the collection tank 15 passes through the mounting seat 2 to above the glue bucket 11. The cross section of the collection tank 15 is "V" shaped, and a through hole that fits the collection tank 15 is opened on the mounting seat 2.

[0034] In a specific embodiment: When in use, glue is added into the glue bucket 11, and the liquid pump 13 on the cover plate 12 is started through an external power supply to discharge the glue in the glue bucket 11 through the glue nozzle 14. The discharged glue will be located between the glue roll 4 and the anilox roll 3. Then, the main power motor 16 is started to rotate through an external power supply, and the anilox roll 3 is driven to rotate through the transmission belt group, so that the glue adheres to the surface of the anilox roll 3. At the same time, the glue between the anilox roll 3 and the glue roll 4 will fall into the collection tank 15 through the narrow gap between the anilox roll 3 and the glue roll 4, and then flow back into the glue bucket 11 again.

[0035] As Figure 2 , Figure 5 and Figure 8 shown in the figure, the glue metering device for the paper pasting machine includes a glue coating device. The glue coating device includes a placing plate 19, a support plate 20, a mounting plate 21 and a first feeding belt group 22. The placing plate 19 is fixed on the mounting seat 2 and is located above the anilox roll 3. The support plate 20 is fixed on the mounting seat 2 and is located below the anilox roll 3. The support plate 20 is vertically fixed and arranged horizontally in a uniform distribution, which can fully support the paper after glue coating and reduce the contact with the paper. The upper surfaces of the placing plate 19 and the support plate 20 are on the same plane, and this plane is tangent to the cross-sectional circle of the anilox roll 3. The angle between this plane and the working plane is 35° - 50°. The mounting plate 21 is fixed on the inner side of the upper end of the base 1, and the first feeding belt group 22 is installed on the mounting plate 21 and is located above the placing plate 19, the anilox roll 3 and the support plate 20. A motor is fixed on the mounting plate 21, and the output shaft of the motor is power-connected to the first feeding belt group 22 through a transmission belt.

[0036] In a specific embodiment: When in use, the placing plate 19 holds the paper and, through the first feeding belt group 22, makes the paper move downward, so that the paper contacts the anilox roll 3, and thus the glue on the anilox roll 3 adheres to the paper. At the same time, the first feeding belt group 22 continues to push the paper downward to above the support plate 20, thus completing the glue coating step.

[0037] During adjustment, the height of the mounting seat 2 is controlled by the electric lifting guide rail on the base 1 to adjust the distance between the first feeding belt group 22 and the anilox roll 3, so as to adapt to papers of different thicknesses.

[0038] As Figure 3 、 Figure 8 and Figure 9 shown in

[0039] In a specific embodiment: during use, an external feeding device will send the paper to the placing plate 19. Since the paper sent is in a high-speed moving state, it will contact the guiding plate 25, and due to the curved design of the guiding plate 25, the paper will move downward, so that the paper falls between the limiting plate 23 and the placing plate 19. Then the lower end of the guiding plate 25 contacts the paper to make the paper fit the placing plate 19. Then, under the push of the second feeding belt group 24, the paper continues to move downward, thus completing the material receiving.

[0040] As Figure 2 、 Figure 5 、 Figure 6 and Figure 7 shown in

[0041] In a specific embodiment: According to the size of the paper, the rotation of the motor is controlled by an external power supply, so that the worm 6 rotates and drives the block 7 to move, thereby restricting the width of the glue between the rubber roller 4 and the anilox roller 3. At the same time, during the movement of the block 7, the liquid pump 13 generates suction at the glue suction hole 10 through a hose to suck away the excess glue during the movement of the block 7. At the same time, the rotation of the anilox tube contacts and rubs against the squeegee 9, thereby scraping off the glue in the overflow range, avoiding too much glue staining the edge of the paper during the gluing process, preventing glue overflow during the laminating process, and thus realizing the quantification of the glue.

[0042] Working principle: When in use, glue is added to the glue bucket 11. The liquid pump 13 on the cover plate 12 is started by an external power supply to discharge the glue in the glue bucket 11 through the glue nozzle 14. The discharged glue is located between the rubber roller 4 and the anilox roller 3. Then, the main power motor 16 is started to rotate by an external power supply and drives the anilox roller 3 to rotate through the transmission belt group, so that the glue adheres to the surface of the anilox roller 3. At the same time, the glue between the anilox roller 3 and the rubber roller 4 falls into the collection tank 15 through the narrow gap between the anilox roller 3 and the rubber roller 4 and then flows back into the glue bucket 11. Then, according to the size of the paper, the rotation of the motor is controlled by an external power supply, so that the worm 6 rotates and drives the block 7 to move, thereby restricting the width of the glue between the rubber roller 4 and the anilox roller 3. At the same time, during the movement of the block 7, the liquid pump 13 generates suction at the glue suction hole 10 through a hose to suck away the excess glue during the movement of the block 7. At the same time, the rotation of the anilox tube contacts and rubs against the squeegee 9, thereby scraping off the glue in the overflow range, avoiding too much glue staining the edge of the paper during the gluing process. Then, the externally connected feeding device sends the paper to the placement plate 19. Since the paper sent over is in a high-speed moving state, it will contact the guide plate 25, and due to the curved design of the guide plate 25, the paper moves downward and falls between the limit plate 23 and the placement plate 19. Then, the lower end of the guide plate 25 contacts the paper to make the paper fit the placement plate 19. Then, under the push of the second feeding belt group 24, the paper continues to move downward. Then, the placement plate 19 holds up the paper and makes the paper move downward through the first feeding belt group 22, so that the paper contacts the anilox roller 3, thereby attaching the glue on the anilox roller 3 to the paper. At the same time, the first feeding belt group 22 continues to push the paper downward to above the support plate 20, thus completing the gluing step.

Claims

1. A glue metering device for a paper laminating machine, comprising a base (1), an anilox roll (3) and a rubber roll (4). The base (1) is disposed on a working plane, and a connecting end is provided at the rear of the base (1). It is characterized in that: An installation seat (2) is mounted on the base (1) through an electric lifting guide rail. The anilox roll (3) is rotatably mounted on the installation seat (2). The rubber roll (4) is mounted on the installation seat (2). A narrow gap of 1-5 mm is left between the anilox roll (3) and the rubber roll (4). Uniform and staggered shallow grooves are formed on the anilox roll (3). A main power motor (16) is provided on the base (1). A first guide wheel (17) is provided on the side of the base (1). A second guide wheel (18) is slidably mounted on the side of the base (1), and a spring is provided to connect the second guide wheel (18) and the base (1). One end of the anilox roll (3) is power-connected to the main power motor (16) through a transmission belt. The transmission belt is also mounted on the first guide wheel (17) and the second guide wheel (18). The second guide wheel (18) keeps the transmission belt tight through the spring; It further includes a glue injection device disposed above the rubber roll (4), a glue coating device disposed above the anilox roll (3), a material receiving device disposed obliquely above the glue coating device, and a glue collecting device disposed above the anilox roll (3) and the rubber roll (4).

2. The glue metering device for a paper pasting machine according to claim 1, wherein, The glue injection device includes a glue bucket (11), a glue nozzle (14) and a collecting tank (15). The glue bucket (11) is placed on one side of the base (1). A cover plate (12) is provided on the glue bucket (11). A liquid pump (13) is provided on the cover plate (12). The liquid pump (13) can discharge the glue in the glue bucket (11) through an output port. A notch is provided on one side of the cover plate (12). A connecting plate is provided below the glue nozzle (14), and the connecting plate is fixed to the installation seat (2). A plurality of glue outlets are provided in front of the glue nozzle (14), and the glue outlets are located between the anilox roll (3) and the rubber roll (4). One side of the glue nozzle (14) is connected to the output port of the liquid pump (13) through a hose. The collecting tank (15) is fixed to the installation seat (2), and the collecting tank (15) is located below the anilox roll (3) and the rubber roll (4). One end of the collecting tank (15) passes through the installation seat (2) to above the glue bucket (11). The cross section of the collecting tank (15) is "V" shaped, and a through hole fitting the collecting tank (15) is formed on the installation seat (2).

3. The glue metering device for a paper pasting machine according to claim 1, wherein The glue coating device includes a placing plate (19), a supporting plate (20), a mounting plate (21) and a first feeding belt group (22). The placing plate (19) is fixed to the installation seat (2) and is located above the anilox roll (3). The supporting plate (20) is fixed to the installation seat (2) and is located below the anilox roll (3). The mounting plate (21) is fixed to the inner side of the upper end of the base (1). The first feeding belt group (22) is mounted on the mounting plate (21) and is located above the placing plate (19), the anilox roll (3) and the supporting plate (20). A motor is fixed on the mounting plate (21), and the output shaft of the motor is power-connected to the first feeding belt group (22) through a transmission belt.

4. The glue metering device for a paper pasting machine according to claim 3, characterized in that, The supporting plate (20) is vertically fixed and arranged horizontally in a uniform manner.

5. The glue metering device for a paper pasting machine according to claim 3, characterized in that, The upper surfaces of the placement plate (19) and the support plate (20) are on the same plane, which is tangent to the cross-sectional circle of the anilox roll (3), and the angle between this plane and the working plane is 35° - 50°.

6. The glue metering device for a paper pasting machine according to claim 1, characterized in that, The material receiving device includes a limit plate (23), a second feeding belt group (24) and a guide plate (25). The limit plate (23) is fixed on the mounting plate (21) and is located above the placement plate (19). The second feeding belt group (24) is arranged on the limit plate (23) and is power-connected to the output shaft of the motor on the mounting plate (21) through a transmission belt. The guide plate (25) is rotatably mounted on the limit plate (23).

7. The glue metering device for a paper pasting machine according to claim 6, characterized in that The upper end of the limit plate (23) is upturned, the guide plate (25) is designed to be curved, and the hinge point between the guide plate (25) and the limit plate (23) is located at 1 / 3 - 1 / 4 of the upper end of the guide plate (25).

8. The glue metering device for a paper pasting machine according to claim 1, wherein, The glue collecting device includes a slide bar (5), a worm (6) and a stop block (7). The slide bar (5) is fixed on the mounting seat (2), the worm (6) is rotatably mounted on the mounting seat (2), a motor is provided on the mounting seat (2), and the output shaft of the motor is power-connected to the worm (6). The stop block (7) is mounted on the worm (6) and is slidably mounted on the slide bar (5).

9. The glue metering device for a paper pasting machine according to claim 8, characterized in that, There are two arc-shaped notches below the stop block (7), which respectively fit with the anilox roll (3) and the rubber roll (4). The stop block (7) is provided with glue suction holes (10). The front of the stop block (7) is a slope, and a slider (8) is slidably mounted on the slope. A spring is provided at the upper end of the slider (8) to connect the stop block (7), and a scraper (9) is fixed at the lower end of the slider (8).

10. A glue metering device for a paper pasting machine according to claim 9, characterized in that, The glue suction holes (10) are in the shape of a funnel with a larger front and a smaller rear. The rear end of the glue suction holes (10) is connected to the input port of the liquid pump (13) through a hose.

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