A multi-adaptive paperboard gluing assembly

Abstract

The utility model provides a kind of multi-adaptability paperboard gluing assembly belongs to paperboard production technical field, this multi-adaptability paperboard gluing assembly includes paperboard gluing machine's gluing assembly, gluing assembly includes gluing part and fixed part, gluing part top end is connected with fixed part movably by elastic connecting part, fixed part is used to install gluing part and gluing machine fixedly, gluing part includes gluing roller, one end of gluing roller is fixedly connected with the output shaft of motor, and other end is connected with roll stand movably by connecting shaft seat, elastic connecting part includes vertical rod, vertical rod bottom is fixedly connected with roll stand top, vertical rod is movably connected with sleeve, spring is arranged between vertical rod and sleeve, for making gluing roller have resilience, the top of sleeve is fixedly connected with fixed part;Vertical rod is cylindrical metal rod, outer surface is equipped with axial guide groove;The utility model can solve the problem that lack of effective self-adapting adjustment mechanism leads to insufficient gluing amount and uneven coating thickness.

Description

Technical Field

[0001] This utility model belongs to the field of paperboard production technology, and specifically relates to a multi-adaptive paperboard coating component. Background Technology

[0002] In the packaging and printing industries, cardboard coating is a crucial step in the production process, and its quality directly impacts the quality and performance of subsequent products. Traditional coating equipment with fixed coating components has extremely limited position and adjustment range for the coating rollers, making it difficult to meet the coating needs of cardboard of varying thicknesses. When processing thin cardboard, the inability to flexibly adjust the distance between the coating roller and the cardboard surface leads to excessive pressure, causing a large amount of glue to be squeezed onto the thin cardboard surface. Excessive glue not only results in significant waste of raw materials and a substantial increase in production costs, but also causes glue to overflow onto equipment transmission components and worktables, leading to equipment malfunctions and environmental pollution. Furthermore, the glue residue formed after drying can affect the precision and quality of subsequent printing and cutting processes. When coating thick cardboard, the lack of an effective adaptive adjustment mechanism makes it difficult for the coating rollers to closely adhere to the thick cardboard surface, resulting in insufficient glue application and uneven coating thickness. Utility Model Content

[0003] In view of this, the present invention provides a multi-adaptive cardboard coating component that can solve the problems of insufficient coating amount and uneven coating thickness caused by the lack of an effective adaptive adjustment mechanism.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a multi-adaptive cardboard coating assembly, including a coating assembly for a cardboard gluing machine. The coating assembly includes a coating section and a fixing section. The top end of the coating section is movably connected to the fixing section via an elastic connecting section. The fixing section is used to fix the coating section to the gluing machine. The coating section includes a coating roller. One end of the coating roller is fixedly connected to the output shaft of a motor, and the other end is movably connected to a roller frame via a coupling seat. The elastic connecting section includes a vertical rod. The bottom of the vertical rod is fixedly connected to the top of the roller frame. The vertical rod is movably connected to a sleeve. A compression spring is provided between the vertical rod and the sleeve to give the coating roller a resilience. The top end of the sleeve is fixedly connected to the fixing section.

[0006] The technical effects of the multi-adaptive cardboard coating assembly provided by this utility model are as follows: Inside the gluing machine, the coating roller adapts to cardboard of different thicknesses through the elastic movement of the elastic connecting part. When the thickness of the cardboard changes, the coating roller can automatically adjust its position to always maintain proper contact with the cardboard surface and ensure uniform coating.

[0007] Based on the above technical solution, the multi-adaptive cardboard coating assembly of this utility model can be further improved as follows:

[0008] The upright is a cylindrical metal rod with an axial guide groove on its outer surface. The sleeve is a hollow cylindrical metal tube with a guide protrusion on its inner wall that mates with the guide groove. The guide protrusion is slidably connected to the guide groove.

[0009] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the guide groove and guide protrusion cooperate to limit the rotation of the upright in the sleeve, so that the glue roller maintains a stable glue application direction when moving up and down.

[0010] Furthermore, the compression spring is made of stainless steel, which has good corrosion resistance and elasticity. The compression spring is fitted on the outside of the upright, with its lower end abutting against the limiting boss on the top of the roller frame and its upper end abutting against the limiting ring set inside the sleeve. The limiting ring is fixedly connected to the bottom wall of the sleeve.

[0011] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the stainless steel compression spring has good corrosion resistance and elasticity, and the limiting boss and limiting ring ensure that the compression spring will not shift during compression and elongation.

[0012] Furthermore, the coupling seat includes a bushing fixed on the roller frame and a shaft fixedly connected to the end of the coating roller. One end of the shaft is inserted into the bushing, and a deep groove ball bearing is provided between the shaft and the bushing. The bushing is fixedly connected to the roller frame by bolts.

[0013] The beneficial effect of adopting the above-mentioned improvement scheme is that the coating roller is connected by a coupling seat to cooperate with the motor drive so that the coating roller can rotate flexibly.

[0014] Furthermore, the fixing part includes a horizontally arranged mounting plate with multiple mounting holes, which is fixedly connected to the gluing machine by bolts, and the top end of the sleeve is fixedly connected to the mounting plate by welding.

[0015] Furthermore, it also includes an electromagnetic resistance adjustment unit, which includes an electromagnetic coil fixed to the outside of the sleeve and a magnetic ring set on the upright.

[0016] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The electromagnetic coil, in conjunction with the magnetic ring, allows for adjustment of the electromagnetic coil current via a controller, thereby changing the magnetic field strength and consequently adjusting the resistance between the upright and the sleeve, i.e., adjusting the hardness of the elastic component. The pressure of the coating roller can be dynamically adjusted according to different working conditions, resulting in a more stable coating effect.

[0017] Furthermore, it also includes a paperboard thickness measurement sensor, which is a laser displacement sensor and is fixedly installed on the glue applicator frame in front of the glue applicator assembly to measure the paperboard thickness entering the glue applicator area in real time.

[0018] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the laser displacement sensor measures the thickness of the paperboard in real time and transmits the data to the controller, providing accurate basis for the controller to adjust the electromagnetic coil current, servo motor speed and glue pump output, so that the glue coating component can accurately adapt to paperboards of different thicknesses.

[0019] Furthermore, the motor is a servo motor, which is fixed to one side of the roller frame by a motor bracket. A shock-absorbing rubber pad is provided between the motor bracket and the roller frame to reduce the transmission of vibration during motor operation.

[0020] Furthermore, the surface of the coating roller is provided with a mesh groove with a depth of 0.5-1mm, and the coating roller is made of nitrile rubber.

[0021] The beneficial effects of adopting the above-mentioned improvement scheme are: nitrile rubber has good oil resistance and abrasion resistance, the mesh groove can store more glue, making the glue coating more uniform and helping the glue to be distributed on the surface of the paperboard.

[0022] Furthermore, the mesh grooves are diamond-shaped mesh grooves.

[0023] Compared with existing technologies, the beneficial effects of this utility model's multi-adaptive cardboard coating assembly are as follows: The elastic connection part enables the coating roller to adaptively adjust to cardboard of different thicknesses. Combined with the guiding structure of the uprights and sleeves, and the stable rebound design of the compression spring, the coating roller is ensured to be stable and reliable during adjustment. By designing an electromagnetic resistance adjustment part and a cardboard thickness measurement sensor, dynamic adjustment is constructed. The sensor monitors the cardboard thickness in real time, and the controller adjusts the electromagnetic coil based on the data, changing the hardness of the elastic component. Simultaneously, it controls the servo motor speed and the glue pump output in the glue supply system, achieving matching of coating pressure, speed, and glue quantity. The material and groove design of the coating roller further ensure coating quality. This solution effectively overcomes the shortcomings of existing coating assemblies, such as poor adaptability and unstable coating effects, significantly improving the uniformity, accuracy, and stability of coating, and enhancing the processing quality and production efficiency of cardboard coating. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a multi-adaptive paperboard coating assembly;

[0026] Figure 2 This is a schematic diagram showing the connection between the roller frame and the coating roller;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 10. Glue application section; 101. Glue application roller; 102. Motor; 103. Roller frame; 104. Limiting boss; 105. Limiting ring; 11. Fixing part; 12. Elastic connection part; 121. Upright pole; 122. Sleeve; 123. Compression spring; 13. Electromagnetic resistance adjustment part; 131. Electromagnetic coil; 132. Magnetic ring; 14. Cardboard thickness measuring sensor; 15. Shock-absorbing rubber pad. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1 Figure 2 shows an embodiment of a multi-adaptive cardboard coating assembly provided by this utility model. In this embodiment, it includes a coating assembly for a cardboard gluing machine. The coating assembly includes a coating part 10 and a fixing part 11. The top end of the coating part 10 is movably connected to the fixing part 11 through an elastic connecting part 12. The fixing part 11 is used to fix the coating part 10 to the gluing machine. The coating part 10 includes a coating roller 101. One end of the coating roller 101 is fixedly connected to the output shaft of the motor 102, and the other end is movably connected to the roller frame 103 through a coupling seat. The elastic connecting part 12 includes a vertical rod 121. The bottom of the vertical rod 121 is fixedly connected to the top of the roller frame 103. The vertical rod 121 is movably connected to a sleeve 122. A compression spring 123 is provided between the vertical rod 121 and the sleeve 122 to give the coating roller 101 elasticity. The top end of the sleeve 122 is fixedly connected to the fixing part 11.

[0031] The coating roller has glue outlet holes arranged on its surface, which are connected to the glue supply system of the cardboard gluing machine to achieve uniform glue dispensing.

[0032] In the above technical solution, the upright 121 is a cylindrical metal rod with an axial guide groove on its outer surface, and the sleeve 122 is a hollow cylindrical metal cylinder with a guide protrusion on its inner wall that cooperates with the guide groove. The guide protrusion is slidably connected to the guide groove.

[0033] Furthermore, in the above technical solution, the compression spring 123 is made of stainless steel, which has good corrosion resistance and elasticity. The compression spring 123 is fitted on the outside of the upright 121, with its lower end abutting against the limiting boss 104 on the top of the roller frame 103, and its upper end abutting against the limiting ring 105 set inside the sleeve 122. The limiting ring 105 is fixedly connected to the bottom wall of the sleeve 122.

[0034] Furthermore, in the above technical solution, the coupling seat includes a bushing fixed on the roller frame 103 and a shaft fixedly connected to the end of the coating roller. One end of the shaft is inserted into the bushing, and a deep groove ball bearing is provided between the shaft and the bushing. The bushing is fixedly connected to the roller frame by bolts.

[0035] Furthermore, in the above technical solution, the fixing part 11 includes a horizontally arranged mounting plate with multiple mounting holes, which is fixedly connected to the gluing machine by bolts, and the top end of the sleeve 122 is fixedly connected to the mounting plate by welding.

[0036] Furthermore, the above technical solution also includes an electromagnetic resistance adjustment unit 13, which includes an electromagnetic coil 131 fixed on the outside of the sleeve 122 and a magnetic ring 132 disposed on the upright 121.

[0037] The magnetic ring is made of ferromagnetic material. The electromagnetic coil is electrically connected to the controller through a wire. The controller is used to adjust the current of the electromagnetic coil. When the electromagnetic coil is energized, it generates a magnetic field that interacts with the magnetic ring. By changing the magnetic field strength, the resistance between the upright and the sleeve is adjusted, thereby adjusting the resistance of the elastic component. This makes the coating roller more stable in coating pressure when adapting to different thicknesses of paperboard.

[0038] Furthermore, the above technical solution also includes a paperboard thickness measuring sensor 14. The paperboard thickness measuring sensor 14 is a laser displacement sensor, which is fixedly installed on the glue applicator frame in front of the glue applicator assembly, and is used to measure the paperboard thickness entering the glue applicator area in real time.

[0039] The laser displacement sensor is electrically connected to the controller via a data cable, transmitting the measurement data to the controller. Based on the cardboard thickness data, the controller adjusts the current of the electromagnetic coil, changes the resistance of the elastic component, and enables the coating roller to apply glue to the cardboard at a suitable pressure.

[0040] Furthermore, in the above technical solution, the motor 102 is a servo motor, which is fixed to one side of the roller frame 103 by a motor bracket. A shock-absorbing rubber pad 15 is provided between the motor bracket and the roller frame 103 to reduce the vibration transmission during the operation of the motor 102.

[0041] The servo motor is electrically connected to the controller. The controller adjusts the speed of the servo motor according to the paperboard thickness data and glue coating quality requirements, so that the glue coating speed of the glue coating roller matches the paperboard conveying speed.

[0042] Furthermore, in the above technical solution, the surface of the coating roller 101 is provided with a mesh groove, the depth of which is 0.5-1mm, and the coating roller 101 is made of nitrile rubber.

[0043] Furthermore, in the above technical solution, the mesh groove is a rhomboid mesh groove.

[0044] Specifically, the principle of this invention is as follows: When cardboard of different thicknesses enters the coating area, the coating roller is subjected to upward or downward forces from the cardboard. Since the top of the coating section is movably connected to the fixing section via an elastic connecting part, the compression spring between the upright and the sleeve undergoes corresponding compression or elongation deformation. The resilience of the compression spring ensures that the coating roller maintains appropriate contact pressure with the cardboard surface, thus adapting to changes in cardboard thickness to complete the coating process. Simultaneously, the guide groove on the outer surface of the upright slides into the guide protrusion on the inner wall of the sleeve, restricting the rotation of the upright and ensuring a stable coating direction during the adaptive adjustment process, preventing uneven coating due to roller rotation. When the electromagnetic coil is energized, it generates a magnetic field, which interacts with the magnetic ring to produce an electromagnetic force. By changing the current in the electromagnetic coil through the controller, the magnetic field strength can be adjusted, thereby changing the magnitude of the electromagnetic force. This electromagnetic force acts on the upright, effectively changing the resistance between the upright and the sleeve, thus achieving adjustment of the stiffness of the elastic component (compression spring). For example, when applying glue to thicker cardboard, increasing the current strengthens the magnetic field, increases the resistance between the upright and the sleeve, and allows the glue roller to adhere to the cardboard with greater pressure, ensuring that the glue is applied fully; conversely, when applying glue to thinner cardboard, reducing the current lowers the pressure of the glue roller to prevent damage to the cardboard.

Claims

1. A multi-adaptive paperboard coating assembly, comprising a coating assembly for a paperboard gluing machine, characterized in that, The glue application assembly includes a glue application section and a fixing section. The top end of the glue application section is movably connected to the fixing section via an elastic connecting section. The fixing section is used to fix the glue application section to the glue applicator. The glue application section includes a glue application roller. One end of the glue application roller is fixedly connected to the output shaft of the motor, and the other end is movably connected to the roller frame via a coupling seat. The elastic connecting section includes a vertical rod. The bottom of the vertical rod is fixedly connected to the top of the roller frame. The vertical rod is movably connected to a sleeve. A compression spring is provided between the vertical rod and the sleeve to give the glue application roller a resilient elasticity. The top end of the sleeve is fixedly connected to the fixing section.

2. The multi-adaptive paperboard coating assembly according to claim 1, characterized in that, The upright is a cylindrical metal rod with an axial guide groove on its outer surface. The sleeve is a hollow cylindrical metal tube with a guide protrusion on its inner wall that mates with the guide groove. The guide protrusion is slidably connected to the guide groove.

3. The multi-adaptive paperboard coating assembly according to claim 2, characterized in that, The compression spring is made of stainless steel, which has good corrosion resistance and elasticity. The compression spring is fitted on the outside of the upright, with its lower end abutting against the limiting boss at the top of the roller frame and its upper end abutting against the limiting ring set inside the sleeve. The limiting ring is fixedly connected to the bottom wall of the sleeve.

4. The multi-adaptive paperboard coating assembly according to claim 3, characterized in that, The coupling seat includes a bushing fixed on the roller frame and a shaft fixedly connected to the end of the coating roller. One end of the shaft is inserted into the bushing, and a deep groove ball bearing is provided between the shaft and the bushing. The bushing is fixedly connected to the roller frame by bolts.

5. A multi-adaptive paperboard coating assembly according to claim 4, characterized in that, The fixing part includes a horizontally set mounting plate with multiple mounting holes, which is fixedly connected to the gluing machine by bolts. The top end of the sleeve is fixedly connected to the mounting plate by welding.

6. The multi-adaptive paperboard coating assembly according to claim 5, characterized in that, It also includes an electromagnetic resistance adjustment unit, which includes an electromagnetic coil fixed to the outside of the sleeve and a magnetic ring set on the upright.

7. A multi-adaptive paperboard coating assembly according to claim 6, characterized in that, It also includes a cardboard thickness measurement sensor, which is a laser displacement sensor and is fixedly installed on the glue applicator frame in front of the glue applicator assembly to measure the thickness of the cardboard entering the glue applicator area in real time.

8. A multi-adaptive paperboard coating assembly according to claim 7, characterized in that, The motor is a servo motor, which is fixed to one side of the roller frame by a motor bracket. A shock-absorbing rubber pad is provided between the motor bracket and the roller frame to reduce the transmission of vibration during motor operation.

9. A multi-adaptive paperboard coating assembly according to claim 8, characterized in that, The coating roller has a mesh groove on its surface, with a depth of 0.5-1mm, and is made of nitrile rubber.

10. A multi-adaptive paperboard coating assembly according to claim 9, characterized in that, The mesh grooves are diamond-shaped mesh grooves.

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