Composite paperboard manufacturing equipment

Abstract

The invention relates to the technical field of composite paperboard manufacturing, in particular to composite paperboard manufacturing equipment which comprises a machine body used for installing two corrugated rollers, a pressure roller, a glue roller and a calibration roller, and a glue storage pool installed in the machine body and used for storing glue. The calibration roller is arranged in the glue storage pool, the stirring rollers are arranged in the glue storage pool and driven by the calibration roller to rotate, the glue viscosity sensor is arranged in the glue storage pool, and the heating wire is used for controlling the temperature of a glue storage environment. The glue roller is provided with the spiral groove, so that the adhesive force and spreadability of glue are improved, it is guaranteed that the glue roller has enough glue to make contact with a corrugated board every time, the coating uniformity of the glue roller is improved, the environment temperature and humidity changes are automatically compensated through the glue viscosity sensor in cooperation with the heating wire, and the coating quality of the corrugated board is improved. Therefore, the negative influence of the environment temperature change on the glue amount is eliminated, and the viscosity of the glue is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of composite paperboard manufacturing, and in particular to composite paperboard manufacturing equipment. Background Art

[0002] The process of composite cardboard processing refers to bonding two or more cardboards together through certain methods and means to form composite cardboard, and corrugated cardboard is a type of composite cardboard. Corrugated cardboard is a multi-layer composite material formed by bonding at least one layer of corrugated core paper interlayer and one or more layers of cardboard.

[0003] The existing composite paperboard manufacturing equipment has the following problems in the actual production process:

[0004] First, due to the influence of special circumstances such as cold waves in some areas, the daily temperature difference is large, and the glue is very likely to lose water too quickly when affected by low temperatures, thus affecting the bonding effect and causing the quality of the corrugated cardboard products to be low;

[0005] Second, since the rubber roller needs to attach the glue to the corrugated cardboard, the existing rubber roller is hydrophobic, which causes the glue to flow significantly under the action of centrifugal force during the rotation of the rubber roller, thereby causing the problem of uneven coating of the rubber roller. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the prior art that the viscosity of glue is affected by the ambient temperature and the hydrophobic coating of the rubber roller is uneven, and to propose a composite paperboard manufacturing device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A composite paperboard manufacturing device comprises a body for mounting a corrugating roller, a pressure roller, a rubber roller and a calibration roller, wherein two corrugating rollers are provided;

[0009] A glue storage tank installed in the machine body and used for storing glue;

[0010] A stirring roller installed in the glue storage tank and driven to rotate by the glue roller, wherein at least two stirring rollers are provided;

[0011] A glue viscosity sensor and a heating wire are arranged in the glue storage tank and are used to control the temperature of the glue storage environment.

[0012] Preferably, each of the corrugated rollers is provided with a corrugated profile corresponding to the finished composite paperboard product, and the rubber roller is provided with a plurality of spiral grooves.

[0013] Preferably, a telescopic bracket is rotatably installed on the body, a motor is fixedly installed on the telescopic bracket, and a connecting column threadedly connected to the rubber roller is fixedly connected to the output end of the motor.

[0014] Preferably, the telescopic bracket is slidably composed of two hollow sleeve plates and a U-shaped movable plate.

[0015] Preferably, an installation cavity is formed in the glue storage tank, a driving gear, two intermediate gears that mesh with each other, and two driven gears that mesh with the intermediate gears are rotatably installed in the installation cavity. A fixed connection is provided between the driven gear and the stirring roller, and the driving gear is threadedly connected to one end of the rubber roller away from the motor.

[0016] Preferably, a groove with internal threads is formed at one end of the rubber roller close to the driving gear, and external threads are provided on the outer wall of one end of the rubber roller close to the telescopic bracket.

[0017] Preferably, a limiting opening is formed in the driving gear and on the body, a mounting bracket is fixedly connected to the body, a cylinder is fixedly connected to the mounting bracket, and a limiting plate corresponding to the intersection of the diagonal line of the limiting opening is fixedly connected to the output end of the cylinder.

[0018] Preferably, both the limiting opening and the limiting plate have a rectangular cross-sectional structure.

[0019] Preferably, light receivers are provided at both ends of the limiting opening located on the driving gear, and light emitters corresponding to the light receivers are provided at both ends of the limiting plate.

[0020] Preferably, a power supply system for supplying electric energy to the heating wire is provided in the glue storage tank, and the glue viscosity sensor is electrically connected to the power supply system.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. In the present invention, spiral grooves are formed in the rubber roller to improve the adhesion and spreading property of the glue, so as to ensure that the rubber roller has sufficient glue amount in contact with the corrugated cardboard each time, which helps to improve the uniformity during the coating of the rubber roller.

[0023] 2. In the present invention, the glue viscosity sensor is used in cooperation with the heating wire to automatically compensate for the changes in environmental temperature and humidity, so as to eliminate the negative impact of environmental temperature changes on the glue amount, which helps to ensure the viscosity of the glue.

[0024] 3. In the present invention, the driving gear drives the driven gear to rotate through the intermediate gear, and the driven gear drives the stirring roller to rotate, so as to continuously stir the glue at the lower end of the glue storage tank, which helps to ensure the fluidity of the glue.

[0025] 4. In the present invention, the rubber roller is installed by threaded connection, so that the rubber roller can be removed separately, and the staff can remove the rubber roller from the side of the machine body, thereby avoiding structural damage to other rollers during the removal of the rubber roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention;

[0027] Figure 2 For the present invention Figure 1 Another perspective schematic diagram proposed in;

[0028] Figure 3 For the present invention Figure 1 The lower cross-sectional view proposed in;

[0029] Figure 4 For the present invention Figure 1 The side sectional view proposed in;

[0030] Figure 5 This is a schematic diagram of the connection structure of the motor, cylinder, rubber storage tank and rubber roller proposed in the present invention;

[0031] Figure 6 For the present invention Figure 5 The cross-sectional view proposed in;

[0032] Figure 7 This is a schematic diagram of the connection structure of the cylinder, the limit plate and the light emitter proposed in the present invention;

[0033] Figure 8 This is a schematic diagram of the rubber roller structure proposed by the present invention.

[0034] In the figure:

[0035] 1. Corrugated roller;

[0036] 2. Pressure roller;

[0037] 3. Rubber roller;

[0038] 4. Calibration roller;

[0039] 5. Machine body; 501. Telescopic bracket; 502. Motor; 503. Connecting column;

[0040] 6. Glue storage tank; 601. Installation cavity; 602. Driving gear; 603. Transition gear; 604. Driven gear; 605. Limiting opening; 606. Mounting frame; 607. Cylinder; 608. Limiting plate; 609. Light receiver; 610. Light transmitter;

[0041] 7. Agitating roller;

[0042] 8. Glue viscosity sensor;

[0043] 9. Heating wire; 901. Power supply system. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] The present invention provides the following preferred embodiments:

[0046] Embodiment 1

[0047] refer to Figures 1 to 8 As shown, this embodiment provides a composite paperboard manufacturing device, including a corrugating roller 1, a pressure roller 2, a rubber roller 3, a calibration roller 4, a machine body 5, a glue storage tank 6, a stirring roller 7, a glue viscosity sensor 8 and a heating wire 9, and the components are arranged as follows:

[0048] The machine body 5 is used to install the corrugating roller 1, the pressure roller 2, the rubber roller 3 and the calibration roller 4. There are two corrugating rollers 1, each of which is provided with a corrugated profile corresponding to the finished composite paperboard product. The corrugated base paper passes through the two corrugating rollers 1 under high pressure and high heat to form a wavy paper with certain strength and buffering capacity. The surface of the corrugating roller 1 is coated with a nano-coating, which helps to improve the wear resistance of the corrugating roller 1. The corrugating roller 1, the pressure roller 2 and the calibration roller 4 are all equipped with corresponding drive systems to control the rotation of the corrugating roller 1, the pressure roller 2 and the calibration roller 4. It should be noted that the two groups of corrugating rollers 1 rotate in opposite directions, and the pressure roller 2, the rubber roller 3 and the calibration roller 4 rotate in clockwise directions. The surface of the rubber roller 3 is provided with a graphene coating, which helps to reduce glue residue. In order to avoid frequent shutdowns for cleaning, a temperature sensor and an RFID chip are embedded inside the rubber roller 3 to monitor the working temperature and wear status in real time. The data is uploaded to the cloud to generate maintenance reminders, so that the staff can check the remaining percentage of the rubber roller 3 life and plan the replacement plan in advance. There are multiple spiral grooves on the rubber roller 3. The spiral grooves increase the contact area between the rubber roller 3 and the glue. At the same time, the glue is evenly distributed in the grooves through capillary action to avoid local accumulation or loss. The spiral structure of the groove guides the glue to flow evenly along the roller surface, reducing splashing and bubble generation during coating. The groove depth and spacing can adjust the release amount of glue to adapt to different viscosities and coating requirements, and the spiral groove shape can be V-grooves, U-grooves and trapezoidal grooves, as shown below:

[0049] V-groove: suitable for low viscosity glue, easy to clean;

[0050] U-shaped groove: suitable for high viscosity glue, with larger glue storage capacity;

[0051] Trapezoidal groove: takes into account both glue storage and cleanliness, and is highly versatile;

[0052] It should be noted that: the spiral direction of the spiral groove is the same as the rotation direction of the rubber roller 3 to avoid glue splashing. The spiral angle is usually 30° to 60°, and the smaller the angle, the stronger the axial fluidity of the glue.

[0053] A telescopic bracket 501 is rotatably installed on the machine body 5, and a motor 502 is fixedly installed on the telescopic bracket 501. The rotational connection between the telescopic bracket 501 and the machine body 5 is one of a ring-shaped slider and a ring-shaped chute or a ring-shaped slide rail and a ring-shaped slider, specifically as follows:

[0054] When using a ring-shaped slider and a ring-shaped chute, the ring-shaped chute is opened on the outer wall of the machine body 5, and the ring-shaped slider slidably connected to the ring-shaped chute is fixedly connected to the telescopic bracket 501, which can reduce the mass that needs to be increased when setting the machine body 5, help reduce the load generated by adding the telescopic bracket 501. At the same time, it should be noted that: a friction plate for increasing the friction between the two is provided on the contact surface between the ring-shaped slider and the ring-shaped chute;

[0055] When using a ring-shaped slide rail and a ring-shaped slider, the ring-shaped slide rail is fixedly connected to the outer wall of the machine body 5, and the ring-shaped slider slidably connected to the ring-shaped slide rail is fixedly connected to the inner end of the telescopic bracket 501. By adding a ring-shaped slide rail on the outer wall of the machine body 5, the original structure of the machine body 5 can be prevented from being damaged when setting the telescopic bracket 501, which helps to ensure that the original structure of the machine body 5 is not affected by the structure driven by adding the telescopic bracket 501. At the same time, it should be noted that: a friction plate for increasing the friction between the two is provided on the contact surface between the ring-shaped slider and the ring-shaped chute, so as to prevent the telescopic bracket 501 from being affected by the inertial force generated by the rotation of the output end of the motor 502;

[0056] The telescopic bracket 501 is slidably composed of two hollow sleeve plates and a U-shaped movable plate, so that the motor 502 has telescopic performance. The output end of the motor 502 is fixedly connected with a connecting column 503 threadedly connected to the rubber roller 3, so that the rubber roller 3 can be detached from the output end of the motor 502, which is convenient for separately disassembling and replacing the rubber roller 3.

[0057] The glue storage tank 6 is installed in the machine body 5 and is used to store glue. The stirring roller 7 is installed in the glue storage tank 6 and is driven to rotate by the rubber roller 3. At least two stirring rollers 7 are provided. The glue storage tank 6 is provided with a mounting cavity 601. The mounting cavity 601 is rotatably installed with a meshing driving gear 602, two transition gears 603 and two driven gears 604 meshing with the transition gears 603. The driven gear 604 is fixedly connected to the stirring roller 7. The driving gear 602 is threadedly connected to the end of the rubber roller 3 away from the motor 502, so that the rubber roller 3 can be separated from the driving gear 602, so that the staff can take the rubber roller 3 out of the machine body 5. At the same time, through the threaded connection between the driving gear 602 and the rubber roller 3, the driving gear 602 is driven while the rubber roller 3 rotates. 2 rotates, the driving gear 602 drives the driven gear 604 to rotate through the transition gear 603, and the driven gear 604 drives the stirring roller 7 to rotate, so that the glue in the glue storage tank 6 flows, which helps to prevent the glue from solidifying. By setting the transition gear 603 as a transmission component between the driven gear 604 and the driving gear 602, the structural volume of the driven gear 604 is reduced. Compared with directly driving the driven gear 604 to rotate through the driving gear 602, the three-set gear transmission can reduce the impact and vibration of the single-stage gear meshing through multi-stage meshing, improve the running stability, and the three-set gear transmission can distribute the input power to more gears, reduce the load of a single gear, thereby reducing wear and heat, and extending the service life;

[0058] A groove with an internal thread is formed at one end of the rubber roller 3 close to the driving gear 602, and an external thread is formed on the outer wall of one end of the rubber roller 3 close to the telescopic bracket 501. Therefore, the initial position of the end of the rubber roller 3 close to the telescopic bracket 501 when installed is outside the rubber storage tank 6, so that the end of the rubber roller 3 close to the telescopic bracket 501 will not fall directly after being separated from the connecting column 503, and will not be restricted by the installation hole that was originally slidably connected to the connecting column 503, thereby ensuring the stability of the rubber roller 3 during the disassembly process, and helping to prevent the rubber roller 3 from causing damage to other parts of the equipment during the disassembly process.

[0059] The driving gear 602 and the machine body 5 are provided with a limited opening 605, the machine body 5 is fixedly connected with a mounting frame 606, the mounting frame 606 is fixedly connected with a cylinder 607, the output end of the cylinder 607 is fixedly connected with a limit plate 608 corresponding to the intersection of the diagonal lines of the limit opening 605, the longitudinal sections of the limit opening 605 and the limit plate 608 are both rectangular structures, it should be noted that: when the limit plate 608 enters the limit opening 605, the driving gear 602 is restricted by the limit plate 608 and cannot rotate, so that the rubber roller 3 will not be driven when disassembled. The driving gear 602 rotates to ensure that the rubber roller 3 can be removed smoothly. Light receivers 609 are arranged at both ends of the limiting opening 605 on the driving gear 602. Light emitters 610 corresponding to the light receivers 609 are arranged at both ends of the limiting plate 608. Through the arrangement of the light receivers 609 and the light emitters 610, the limiting plate 608 and the limiting opening 605 are quickly positioned, which helps to ensure the working efficiency of the limiting plate 608 in fixing and limiting the driving gear 602.

[0060] The glue viscosity sensor 8 and the heating wire 9 for controlling the temperature of the glue storage environment are arranged in the glue storage tank 6. The glue viscosity sensor 8 uses a rotation method for the hot melt glue stored in the glue storage tank 6. The motor drives the rotor to rotate at a constant speed in the glue. The viscous resistance of the glue generates torque. The sensor detects the torque and converts it into a viscosity value through a microprocessor. Since the viscosity of the glue is significantly affected by temperature, a temperature control module needs to be selected in the glue viscosity sensor 8 to ensure the temperature control accuracy. The contact parts of the glue viscosity sensor 8 are made of stainless steel to improve the corrosion resistance of the glue viscosity sensor 8, and the probe is cleaned regularly to prevent glue solidification and blockage. A power supply system 901 for providing electrical energy to the heating wire 9 is provided in the glue storage tank 6. The glue viscosity sensor 8 is electrically connected to the power supply system 901. The power supply system 901 is composed of a power input module, a temperature controller, a relay, a PWM modulation module, a protection device, a power conversion and voltage stabilization module connection and wiring components, and adjusts the temperature in the glue storage tank 6 through the heating wire 9 to control the temperature of the glue, which helps to ensure the viscosity of the glue.

[0061] Embodiment 2

[0062] refer to Figures 1 to 8 As shown, this embodiment provides a composite paperboard manufacturing device. The structure of this embodiment is basically the same as that of the first embodiment, except that: the glue stored in the glue storage tank 6 is water-based glue, and the glue viscosity sensor 8 adopts a vibration method. Its working principle is that the sensor vibrates in the glue through an ultrasonic vibration element, and its resonance frequency and amplitude will change due to the change of glue viscosity. By detecting this change, the glue viscosity can be calculated. As long as,.

[0063] The present invention can be explained by the following operation mode:

[0064] Start the corrugating roller 1, the pressure roller 2, the motor 502 and the calibration roller 4, transmit the core paper through the corrugating roller 1, and squeeze the core paper into a wave-breaking shape, the motor 502 drives the rubber roller 3 to rotate, and drives the glue with a suitable amount to adhere to the core paper flutes through the calibration roller 4 and the rubber roller 3, the rubber roller 3 drives the driving gear 602 to rotate, the driving gear 602 drives the transition gear 603 to rotate, the transition gear 603 drives the driven gear 604 to rotate, the driven gear 604 drives the stirring roller 7 to rotate, the stirring roller 7 drives the glue to flow in the glue storage tank 6, so as to ensure the fluidity of the glue, and at the same time, the pressure roller 2 applies a suitable pressure and drives the panel to contact with the core paper;

[0065] During the production of corrugated cardboard, the viscosity of the glue is detected by the glue viscosity sensor 8, and when the ambient temperature is lower than 10°C, the heating wire 9 is controlled to start by the power supply system 901, so as to increase the temperature of the glue in the glue storage tank 6, and the heating wire 9 is stopped when the glue temperature is 30°C;

[0066] When it is necessary to disassemble the rubber roller 3, the light emitter 610 is started to emit light, the motor 502 is started to drive the rubber roller 3 to rotate at an angle, and when the light receiver 609 receives the light emitted by the light emitter 610, the cylinder 607 is started to drive the limit plate 608 to enter the limit opening 605, so as to limit the rotation of the driving gear 602, and the telescopic bracket 501 is rotated to release the threaded fixation of the rubber roller 3 by rotation, thereby realizing the disassembly operation of the rubber roller 3.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite paperboard manufacturing device, characterized in that: Including: A machine body (5) for installing a corrugating roll (1), a pressure roll (2), a rubber roll (3) and a calibration roll (4), and two corrugating rolls (1) are provided; A glue storage tank (6) installed in the machine body (5) and used for storing glue; A stirring roll (7) installed in the glue storage tank (6) and driven to rotate by the rubber roll (3), and at least two stirring rolls (7) are provided; A glue viscosity sensor (8) and a heating wire (9) for controlling the temperature of the glue storage environment are provided in the glue storage tank (6).

2. A composite paperboard manufacturing device according to claim 1, characterized in that: Each corrugating roll (1) is provided with a corrugated profile corresponding to the finished composite cardboard, and the rubber roll (3) is provided with a plurality of spiral grooves.

3. The composite paperboard manufacturing equipment according to claim 1, characterized in that: A telescopic bracket (501) is rotatably installed on the machine body (5), a motor (502) is fixedly installed on the telescopic bracket (501), and a connecting column (503) threadedly connected to the rubber roll (3) is fixedly connected to the output end of the motor (502).

4. The composite paperboard manufacturing equipment according to claim 3, characterized in that: The telescopic bracket (501) is slidably composed of two hollow sleeve plates and a U-shaped movable plate.

5. The composite paperboard manufacturing equipment according to claim 3, characterized in that: An installation cavity (601) is formed in the glue storage tank (6), a driving gear (602), two intermediate gears (603) and two driven gears (604) meshing with the intermediate gears (603) are rotatably installed in the installation cavity (601), the driven gears (604) are fixedly connected to the stirring roll (7), and the driving gear (602) is threadedly connected to one end of the rubber roll (3) away from the motor (502).

6. The composite paperboard manufacturing equipment according to claim 4, characterized in that: A groove with internal threads is formed at one end of the rubber roll (3) close to the driving gear (602), and an external thread is provided on the outer wall of one end of the rubber roll (3) close to the telescopic bracket (501).

7. The composite paperboard manufacturing equipment according to claim 1, characterized in that: The driving gear (602) and the machine body (5) are provided with a limiting port (605), the machine body (5) is fixedly connected with a mounting frame (606), the mounting frame (606) is fixedly connected with a cylinder (607), and a limiting plate (608) corresponding to the diagonal intersection point of the limiting port (605) is fixedly connected to the output end of the cylinder (607).

8. The composite paperboard manufacturing equipment according to claim 7, characterized in that: Both the longitudinal sections of the limiting port (605) and the limiting plate (608) are rectangular structures.

9. The composite paperboard manufacturing equipment according to claim 7, characterized in that: A light receiver (609) is arranged at both ends of the limiting port (605) located on the driving gear (602), and light emitters (610) corresponding to the light receiver (609) are arranged at both ends of the limiting plate (608).

10. The composite paperboard manufacturing equipment according to claim 1, characterized in that: A power supply system (901) for supplying power to the heating wire (9) is provided in the glue storage tank (6), and the glue viscosity sensor (8) is electrically connected to the power supply system (901).

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