Pressing assembly for corrugated board production
By using a combined structure of lower pressing roller, corrugated roller and arc-shaped pressing plate in the production of corrugated cardboard and combined with guide pressing rollers, low-temperature and low-pressure pressing is achieved, which solves the problems of small pressing area and uneven paste, and improves the quality and durability of corrugated cardboard.
Patent Information
- Application Number
- CN202422494673.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In the production of existing corrugated cardboard, the pressing area is small and the paste is uneven, which leads to the cardboard being prone to cracking in the later stage, and high-temperature and high-pressure steam is prone to damage the cardboard.
A pressing assembly including a lower pressing roller, a corrugated roller and an arc-shaped pressing plate is adopted, and combined with the first and second guide pressing rollers, low-temperature and low-pressure pressing is achieved, increasing the pressing area and ensuring the uniformity of the paste.
By low temperature and low pressure pressing, the cardboard is avoided damage, the quality of the cardboard is improved, cracked, and the pressing effect is enhanced.
Smart Images
Figure CN223290447U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of corrugated cardboard, and in particular to a pressing assembly for producing corrugated cardboard. Background Art
[0002] Corrugated cardboard is made of face paper and corrugated paper bonded together with glue. Depending on the required structural strength, the corrugated paper can be arranged in different layers. A layer of face paper and a layer of corrugated paper are bonded together with glue to form a single layer of corrugated paper. Several layers of single-layer corrugated paper are then bonded together with glue to form a whole. The single-facer heats and presses a layer of flat corrugated paper into the desired flute shape. Paste is then applied to the corrugated ridges before being pressed with the face paper (flat paper) to form a single layer of corrugated paper.
[0003] Figure 1 The figure shows a corrugated cardboard production press in the prior art (from top to bottom, lower pressing roller A, corrugating roller B, upper pressing roller C). The overlapping corrugated paper and facial tissue are pressed together using the tangent point of the upper pressing roller and the corrugating roller. This method has a small pressing area and cannot keep the paste uniform. The corrugated cardboard produced is prone to cracking in the later stage. In addition, this method requires high temperature and high pressure to ensure that the corrugated paper and facial tissue are glued together. High temperature and high pressure steam can easily break the corrugated paper and facial tissue.
[0004] In order to solve this problem, the present application discloses a pressing assembly for producing corrugated cardboard. Utility Model Content
[0005] In order to overcome the deficiencies of the prior art, the present application discloses a pressing assembly for producing corrugated cardboard.
[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present application is: a pressing assembly for producing corrugated cardboard, comprising a lower pressing roller, a corrugating roller and an arc-shaped pressing sheet arranged in sequence from bottom to top;
[0007] A first guide pressing roller is provided on one side of the exterior of the corrugating roller for pressing the face paper, and a second guide pressing roller is provided on the other side of the exterior of the corrugating roller for pressing the composite corrugated board.
[0008] Further preferably, the arc-shaped pressing sheet is arranged obliquely or vertically above the corrugating roller.
[0009] It is further preferred that the arc-shaped pressing sheet is adapted to the corrugating roller.
[0010] Further preferably, the diameter of the first guide pressure roller is larger than the diameter of the second guide pressure roller.
[0011] It is further preferred that, in the direction of the center line connecting the first guide pressing roller and the corrugating roller, the distance between the first guide pressing roller and the corrugating roller is 20 mm.
[0012] It is further preferred that, in the direction of the center line connecting the second guide pressing roller and the corrugating roller, the distance between the second guide pressing roller and the corrugating roller is 20 mm.
[0013] Further preferably, the angle between the first guide roller and the corrugated roller is 55°, and the angle between the second guide roller and the corrugated roller is 34°.
[0014] This application achieves the following beneficial effects:
[0015] The present application uses an arc-shaped pressing sheet in conjunction with a first guide pressing roller and a second guide pressing roller, and can press the stacked corrugated paper and facial paper by low-temperature, low-pressure steam, thereby avoiding damage to the corrugated paper and facial paper by high-temperature, high-pressure steam. This method also increases the pressing area, ensures the uniformity of the paste, and the corrugated paperboard produced will not crack in the later stage, thereby greatly improving the quality of the corrugated paperboard.
[0016] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained through the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure of the present application and, together with the description, serve to explain the principles of the disclosure.
[0018] Figure 1 This is a schematic diagram of a conventional corrugated cardboard production press disclosed in this application;
[0019] Figure 2 A schematic diagram of the overall structure disclosed in this application;
[0020] In the figure: 10, arc-shaped pressing sheet; 20, first guide pressing roller; 30, second guide pressing roller; A, lower pressing roller; B, corrugated roller; C, upper pressing roller. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0022] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present application.
[0023] Example
[0024] To solve Figure 1 The corrugated cardboard production press shown uses the tangent point of the upper pressing roller C and the corrugating roller B to press the superimposed corrugated paper and the face paper. The pressing area is small, and the paste cannot be kept uniform. The corrugated cardboard produced is prone to cracking in the later stage. In addition, high-temperature and high-pressure steam heating is required during the pressing process, which can easily cause damage to the face paper and corrugated paper. Figure 2 As shown, the present application discloses a pressing assembly for corrugated cardboard production, comprising a lower pressing roller A, a corrugating roller B, and an arc-shaped pressing sheet 10 arranged in sequence from bottom to top; the arc-shaped pressing sheet 10 is adapted to the corrugating roller B, a first guide pressing roller 20 is provided on one side of the outside of the corrugating roller B for pressing the face paper, and a second guide pressing roller 30 is provided on the other side of the outside of the corrugating roller B for pressing the composite corrugated cardboard;
[0025] In specific implementation, the corrugated paper enters between the lower pressing roller A and the corrugated roller B and passes through the arc pressing sheet 10 and the corrugated roller B around the corrugated roller B; the face paper passes through between the arc pressing sheet 10 and the corrugated roller B above the corrugated paper. Under the pressure of the first guide pressing roller 20 and the second guide pressing roller 30, the corrugated paper and the face paper will be in a tensioned state and fit with the corrugated roller. When passing between the arc pressing sheet 10 and the corrugated roller B, the composite can be completed. Compared with Figure 1 The pressing machine for corrugated cardboard production has greatly increased the pressing area and pressing time. It can be implemented under low temperature and low pressure conditions, ensuring the uniformity of the paste. The corrugated cardboard produced will not crack in the later stage, thereby improving the quality of the corrugated cardboard.
[0026] Optionally, the arc-shaped pressing plate 10 of the present application is arranged obliquely or vertically above the corrugated roller B, and during the setting process, a gap should be left between the arc-shaped pressing plate 10 and the corrugated roller B for the corrugated paper and facial tissue to pass through (this content is common sense and you only need to understand it).
[0027] In one of its settings, the diameter of the first guide roller 20 of the present application is larger than the diameter of the second guide roller 30. In this way, the corrugated paper and the facial paper can be pressed together while saving space, which is highly practical.
[0028] Specifically, in the direction of the center line between the first guide roller 20 and the corrugating roller B, the present application sets the spacing between the first guide roller 20 and the corrugating roller B to 20 mm, and in the direction of the center line between the second guide roller 30 and the corrugating roller B, the present application sets the spacing between the second guide roller 30 and the corrugating roller B to 20 mm. The angle between the first guide roller and the corrugating roller is 55°, and the angle between the second guide roller and the corrugating roller is 34°.
[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0030] The above embodiments are intended only to illustrate the technical concepts and features of this application. Their purpose is to enable those skilled in the art to understand the content of this application and implement it accordingly. They are not intended to limit the scope of protection of this application. Any equivalent changes or modifications made in accordance with the spirit of this application shall be included in the scope of protection of this application.
Claims
1. A pressing assembly for corrugated cardboard production, characterized in that: It comprises a lower pressing roller (A), a corrugated roller (B) and an arc-shaped pressing sheet (10) which are arranged in sequence from bottom to top; A first guide pressing roller (20) is provided on one side of the outside of the corrugating roller (B) for pressing the face paper, and a second guide pressing roller (30) is provided on the other side of the outside of the corrugating roller (B) for pressing the composite corrugated board.
2. A pressing assembly for corrugated cardboard production according to claim 1, characterized in that: The arc-shaped pressing sheet (10) is arranged obliquely or vertically above the corrugating roller (B).
3. A pressing assembly for corrugated board production according to claim 1, characterized in that: The arc-shaped pressing sheet (10) is adapted to the corrugating roller (B).
4. A pressing assembly for corrugated board production according to claim 1, characterized in that: The diameter of the first guide pressing roller (20) is greater than the diameter of the second guide pressing roller (30).
5. The pressing assembly for corrugated board production according to claim 1, characterized in that: In the direction of the center line connecting the first guide pressing roller (20) and the corrugating roller (B), the distance between the first guide pressing roller (20) and the corrugating roller (B) is 20 mm.
6. A pressing assembly for corrugated board production according to claim 1, characterized in that: In the direction of the center line connecting the second guide pressing roller (30) and the corrugating roller (B), the distance between the second guide pressing roller (30) and the corrugating roller (B) is 20 mm.
7. A pressing assembly for corrugated board production according to claim 1, characterized in that: The angle between the first guide pressing roller (20) and the corrugating roller (B) is 55°, and the angle between the second guide pressing roller (30) and the corrugating roller (B) is 34°.