Paperboard bonding device

By creating wrinkle shapes between large rollers and small rollers, combining push rods to control glue release and extrusion roller bonding, the problem of uneven coating glue is solved and efficient bonding of corrugated cardboard is achieved.

CN223187165UActive Publication Date: 2025-08-05HEFEI WANXING PACKAGING PAPERBOARD CO LTD
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Patent Information

Application Number
CN202422114431.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-08-05
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

In the prior art, it is difficult to control the amount of glue when applying glue, and the wave-shaped structure of the core plate leads to uneven coating, affecting the adhesion effect of corrugated cardboard.

Method used

The large roller and small roller are used to create a wrinkle shape. The glue-coated parts control the release of glue through the push rod and the push head, and the extrusion roller is used to achieve the bonding of the paperboard and the core paper, and the drive motor and gear transmission are combined to achieve automatic control.

Benefits of technology

The continuous and uniform coating of glue and efficient bonding of cardboard are achieved, the control process is simplified, and the bonding quality and efficiency of corrugated cardboard are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a paperboard bonding device. The paperboard bonding device comprises a wrinkle processing part, a bonding part and a gluing part, the wrinkle processing part comprises a large roller and a small roller which are matched with each other, core paper is arranged between the large roller and the small roller, and teeth which are matched for manufacturing wrinkle shapes are arranged on the surfaces of the large roller and the small roller; the attaching part comprises two extrusion rollers, paperboards are arranged on the extrusion rollers in a transmission mode, and the paperboards are attached to the two sides of the core paper in a matched mode; the gluing component comprises two gluing rollers, a glue storage box is arranged above the gluing rollers, and a push rod matched with glue discharging is further arranged on the glue storage box. In the application, the glue storage box is arranged above the gluing rollers, and under regular pushing of the push rod, a push head can be pushed to extrude glue to be discharged into a glue discharging pipeline, so that the glue is conveniently and continuously released to the gluing rollers; and the glue outlet amount can be controlled by controlling the reciprocating frequency of the push rod, the structure is simple, and control is easy.
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Description

Technical Field

[0001] The present application relates to the technical field of cardboard processing, and in particular to a cardboard bonding device. Background Art

[0002] Corrugated cardboard, also known as corrugated paperboard, is an important packaging material with a multi-layer structure and excellent physical properties. Corrugated cardboard primarily consists of two components: a core paper and a paperboard. The core paper, the core layer, has a wavy structure that effectively disperses and cushions pressure, improving the cardboard's compressive and shock-resistant properties. The paperboard acts as a supporting and protective layer for the core paper, remaining tightly bonded to it. Corrugated cardboard can be manufactured as single-sided, double-sided, or multi-layered, depending on the needs.

[0003] However, in actual application, the core paper needs to be coated with glue before being bonded to the cardboard. Since the core board is wavy, when applying glue, a roller needs to be dipped in glue and moved close to the core board. When the roller rotates, the glue can be applied to the core board. However, the glue on the roller also needs to be continuously replenished, and the amount of replenished glue is difficult to control.

[0004] Therefore, those skilled in the art provide a cardboard bonding device to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the present application provides a cardboard bonding device.

[0006] The cardboard bonding device provided in this application adopts the following technical solution:

[0007] A cardboard bonding device, comprising a pleating component, a laminating component and a gluing component;

[0008] The pleating processing parts include a large roller and a small roller that cooperate with each other, a core paper is set between the large roller and the small roller, and the surface of the large roller and the small roller are both provided with teeth that cooperate to create pleating shapes;

[0009] The laminating component includes two squeezing rollers, on which cardboard is driven and laminated to both sides of the core paper.

[0010] The gluing component includes two gluing rollers, a glue storage box is arranged above the gluing rollers, and a push rod for discharging glue is also arranged on the glue storage box.

[0011] Furthermore, a plurality of connecting rods are installed on the push rod, the ends of the connecting rods are inserted into the glue storage box and connected to a push head, a plurality of glue outlet pipes cooperating with the push head are provided inside the glue storage box, the push head is sealed and fitted on the glue outlet pipe, and an extrusion spring is installed between the push head and the glue storage box.

[0012] Furthermore, a cross bar is connected to the end of the push rod, and an elliptical disk is installed at the middle position between the two cross bars. The elliptical disk is installed on the output shaft of the trigger motor.

[0013] Furthermore, a glue outlet is provided on the side of the glue storage box, and the glue outlet is arranged close to the glue coating roller. A plurality of glue feeding tubes are also installed on the glue storage box.

[0014] Furthermore, a driven gear is mounted on the central axis of the extrusion roller, a driving gear is meshed with the driven gear, and the driving gear is mounted on the output shaft of the driving motor.

[0015] In summary, this application has the following beneficial technical effects:

[0016] 1. In this application, a glue storage box is provided above the glue coating roller, and under the regular push of the push rod, the push head can be pushed to squeeze the glue and discharge it into the glue outlet pipe, which is convenient for continuously releasing glue onto the glue coating roller. Moreover, the glue output can be controlled by controlling the reciprocating frequency of the push rod. The structure is relatively simple and easy to control.

[0017] 2. This application also has squeezing rollers on both sides of the core paper. With the cooperation of the squeezing rollers, the cardboard can be continuously transported close to the core paper and attached to both sides of the core paper to complete the bonding work, which is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of this application;

[0019] Figure 2 It is a structural diagram of the pleating processing component of this application;

[0020] Figure 3 It is a structural diagram of the laminating components of this application;

[0021] Figure 4 This is a schematic diagram of the structural disassembly of the glue coating component of this application.

[0022] Explanation of the accompanying reference numerals: 1. Pleating processing component; 11. Large roller; 12. Small roller; 2. Laminating component; 21. Extrusion roller; 22. Driven gear; 23. Driving gear; 24. Driving motor; 3. Gluing component; 31. Gluing roller; 32. Glue storage box; 321. Glue outlet; 322. Glue feeding hose; 33. Push rod; 331. Connecting rod; 332. Push head; 333. Extrusion spring; 334. Cross bar; 335. Oval disk; 336. Trigger motor; 4. Core board; 5. Cardboard. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] Example 1

[0025] Reference Figure 1 、 Figure 2 As shown, the present application discloses a cardboard bonding device, including a pleating processing component 1, which includes a large roller 11 and a small roller 12 that cooperate with each other. A core paper 4 is arranged between the large roller 11 and the small roller 12, and the surfaces of the large roller 11 and the small roller 12 are provided with teeth that cooperate to produce pleated shapes. The teeth on the large roller 11 and the small roller 12 engage with each other to squeeze the core paper 4 to produce pleated shapes. The lengths of the large roller 11 and the small roller 12 are both set to be greater than the width of the core paper 4;

[0026] Reference Figure 1 、 Figure 3 As shown, the laminating component 2 includes two squeezing rollers 21, on which a cardboard 5 is driven and arranged, and the cardboard 5 is laminated to both sides of the core paper 4. A driven gear 22 is also installed on the central axis of the squeezing roller 21, and a driving gear 23 is meshed with the driven gear 22. The driving gear 23 is installed on the output shaft of the driving motor 24, and the driving motor 24 is installed in an external chassis. The two squeezing rollers 21 are arranged below the gluing component 3. After the gluing component 3 applies glue to both sides or one side of the core paper 4, the squeezing rollers 21 cooperate to convey the cardboard 5 close to and laminate it to the side of the core paper 4. Through the pressure cooperation of the two squeezing rollers 21, the cardboard 5 is pressed tightly against the core paper 4 to complete the production.

[0027] Reference Figure 1 、 Figure 4As shown, the glue coating component 3 includes two glue coating rollers 31, a glue storage box 32 is provided above the glue coating roller 31, a glue outlet 321 is provided on the side of the glue storage box 32, the glue outlet 321 is provided close to the glue coating roller 31, a plurality of glue feeding tubes 322 are installed on the glue storage box 32, a push rod 33 for cooperating with glue discharge is provided on the glue storage box 32, a plurality of connecting rods 331 are installed on the push rod 33, the end of the connecting rod 331 is inserted into the glue storage box 32 and connected to a push head 332, a plurality of glue discharge pipes cooperating with the push head 332 are provided inside the glue storage box 32, and the push head 332 is sealed and fitted On the glue outlet pipe, an extrusion spring 333 is installed between the push head 332 and the glue storage box 32. The push rod 33 can push the push head 332 to slide in the glue storage box 32 through the connecting rod 331, and through the cooperation of the extrusion spring 333, the push head 332 can be sealed on the glue outlet pipe to prevent the glue from being discharged. When the push head 332 is away from the glue outlet pipe, the glue can enter the glue outlet pipe and be discharged through the glue outlet 321, and be released and drip onto the glue coating roller 31. When the glue coating roller 31 rotates, the glue can be coated on the surface of the core board 4, which is convenient for subsequent bonding operations.

[0028] In order to facilitate the control of the regular movement of the push rod 33, a cross bar 334 is connected to the end of the push rod 33, and an elliptical disk 335 is installed in the middle position close to the two cross bars 334. The elliptical disk 335 is installed on the output shaft of the trigger motor 336. When the elliptical disk 335 rotates, the two ends of the elliptical disk 335 will contact the cross bar 334 and push the cross bar 334 and the push rod 33 to slide outward. By controlling the rotation speed of the elliptical disk 335, the movement frequency of the push rod 33 can be controlled, thereby facilitating the control of the glue output amount and avoiding excessive glue output at a single time.

[0029] Example 2

[0030] On the basis of embodiment 1, in order to facilitate smooth contact and movement between the elliptical disk 335 and the cross bar 334, rollers can be installed at both ends of the elliptical disk 335, and a rotating wheel can be installed on the end of the cross bar 334, and the rollers are in contact with the rotating wheel.

[0031] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] The implementation principle of the cardboard bonding device of the present application is as follows:

[0034] When in use, the core plate 4 is introduced between the large roller 11 and the small roller 12. The teeth on the surfaces of the large roller 11 and the small roller 12 engage with each other, so that the core plate 4 can be easily processed into a pleated shape. Then, with the cooperation of the trigger motor 336, the elliptical disk 335 can be pushed to rotate. When the end of the elliptical disk 335 contacts the cross bar 334, it can push the cross bar 334 and the push rod 33 to slide. The push rod 33 can pull the push head 332 to slide in the glue storage box 32 through the connecting rod 331, compressing the extrusion spring 33 and moving away from the glue outlet pipe. After that, when the push rod 33 is reset, it can push the push head 332 to reset, so that the glue can be pushed out, and the glue is continuously released to the glue coating roller 31. When the glue coating roller 31 rotates, the glue can be applied to the core plate 4, which is convenient for subsequent bonding processing.

[0035] In addition, with the cooperation of the driving motor 24, the driving gear 23 can also be pushed to rotate, and the driving gear 23 is engaged with the driven gear 22, thereby pushing the squeezing roller 21 to rotate. At this time, the cardboard 5 can be continuously adhered to the core board 4 and bonded to the surface of the core board 4 with the cooperation of the squeezing roller 21. Through the pressure cooperation of the two squeezing rollers 21, the cardboard 5 is pressed tightly on the core paper 4 to complete the production.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cardboard bonding device, characterized in that: It comprises a pleating processing component (1), a laminating component (2) and a gluing component (3); The pleating processing component (1) comprises a large roller (11) and a small roller (12) that cooperate with each other, a core paper (4) is arranged between the large roller (11) and the small roller (12), and the surfaces of the large roller (11) and the small roller (12) are both provided with teeth that cooperate to produce pleated shapes; The laminating component (2) comprises two squeezing rollers (21), on which cardboard (5) is driven and arranged, and the cardboard (5) is fitted on both sides of the core paper (4); The glue coating component (3) comprises two glue coating rollers (31), a glue storage box (32) is arranged above the glue coating rollers (31), and a push rod (33) for cooperating with glue discharge is also arranged on the glue storage box (32).

2. A cardboard bonding device according to claim 1, characterized in that: The push rod (33) is further provided with a plurality of connecting rods (331), the ends of the connecting rods (331) are inserted into the glue storage box (32) and connected to a push head (332), a plurality of glue outlet pipes matching the push heads (332) are provided inside the glue storage box (32), the push heads (332) are sealed and attached to the glue outlet pipes, and an extrusion spring (333) is further provided between the push heads (332) and the glue storage box (32).

3. A cardboard bonding device according to claim 2, characterized in that: The end of the push rod (33) is also connected to a cross bar (334), and an elliptical disk (335) is also installed at the middle position close to the two cross bars (334). The elliptical disk (335) is mounted on the output shaft of the trigger motor (336).

4. The cardboard bonding device according to claim 1, characterized in that: A glue outlet (321) is also provided on the side of the glue storage box (32), and the glue outlet (321) is arranged close to the glue coating roller (31). A plurality of glue feeding tubes (322) are also installed on the glue storage box (32).

5. The cardboard bonding device according to claim 1, characterized in that: A driven gear (22) is also installed on the central axis of the squeezing roller (21), and a driving gear (23) is meshed with the driven gear (22), and the driving gear (23) is installed on the output shaft of the driving motor (24).