Thin heating plate of corrugated board double-sided machine
By designing a combination of internal circulation pipes and steam vents on the corrugated cardboard double-facer, the problems of large heating device size and slow heat transfer were solved, achieving efficient corrugated cardboard heating and improving production efficiency.
Patent Information
- Application Number
- CN202423251606.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The heating devices of existing corrugated cardboard double-facers are bulky and have slow heat transfer, resulting in heat waste and low production efficiency.
A thin heating plate for a corrugated cardboard double-sided machine was designed. It adopts a combination structure of internal circulation pipe and steam vent to realize internal circulation heating and direct heating of steam, thereby improving heat transfer efficiency.
Improved heating efficiency and reduced heat loss enhance the production efficiency of corrugated cardboard double-facers.
Smart Images
Figure CN223618373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a corrugated cardboard machine, specifically, to a thin heating plate for a corrugated cardboard double-sided machine. Background Technology
[0002] The double-facer is a crucial single machine in a corrugated board production line. Its main function (also known as a heat-bonding machine) is to bond single-faced corrugated board and the facing paper together, heat-cure, dry, and then cold-set it into high-quality three-, five-, or seven-layer corrugated board. The board is then passed to equipment such as a slitting and creasing machine for cutting. The performance of the double-facer plays a decisive role in the formation of the corrugated board.
[0003] As can be seen from the above, corrugated cardboard double-facers typically require heating devices to transfer heat and cure the adhesive on the corrugated cardboard. However, traditional heating devices used in corrugated cardboard double-facers are box-shaped structures, which are bulky and require multiple heating plates welded together. Existing heating plates are formed by welding several partitions, with internal partitions creating steam channels. Steam inlets are provided on the heating plates for steam entry, and water outlets are provided for the condensed water. This type of heating plate has the following drawbacks: it is bulky, the heat from the steam cannot be quickly transferred to the corrugated cardboard, heat transfer is slow, heating is slow, resulting in a significant waste of heat. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as large size and slow heat transfer, and to provide a thin heating plate for corrugated cardboard double-facers that is small in size, has fast heat transfer, reduces heat loss, and heats up quickly, thereby effectively improving the production efficiency of corrugated cardboard double-facers.
[0005] To achieve the above objectives, this utility model provides a thin heating plate for a corrugated cardboard double-facer, comprising a heating plate body, wherein the heating plate body includes a heating panel mounted on the upper part; the heating panel is provided with a first circulation pipe for heating the heating panel, the first circulation pipe being connected to a first steam inlet mounted on the lower part of the heating panel, a first steam outlet mounted on one side of the heating panel, and a second steam outlet mounted on the other side of the heating panel; the heating panel is also provided with a steam escaping pipe, with a plurality of escaping holes connected to the steam escaping pipe at the upper part, and a second steam inlet connected to the steam escaping pipe at the lower part; steam is emitted outward from the escaping holes to heat the corrugated cardboard.
[0006] Preferably, the heating plate body further includes a first support plate installed on one side of the heating panel and a second support plate installed on the other side of the heating panel; the first support plate is provided with a second circulation pipe inside, one end of the second circulation pipe is provided with a third steam inlet, and the other end is provided with a third steam outlet; the third steam inlet is connected to the first steam outlet, so that the first circulation pipe is connected to the second circulation pipe; the second support plate is provided with a third circulation pipe inside, one end of the third circulation pipe is provided with a fourth steam inlet, and the other end is provided with a fourth steam outlet; the fourth steam inlet is connected to the second steam outlet, so that the first circulation pipe is connected to the third circulation pipe.
[0007] Preferably, the heating panel is an integral component, and the first circulation pipeline includes several first transverse pipelines and several connecting grooves; the first transverse pipelines are guided through the connecting grooves to form an "S" shape, flowing to both sides, and connected to the first steam outlet and the second steam outlet.
[0008] Preferably, a first circulation pipe is drilled inside the heating panel, the end of the first transverse pipe is sealed with a circular plug, and the end of the connecting groove is sealed with a waist-shaped plug.
[0009] Preferably, a second circulation pipe is drilled inside the first support plate, and the end of the second circulation pipe is sealed with a circular plug; a third circulation pipe is drilled inside the second support plate, and the end of the third circulation pipe is also sealed with a circular plug.
[0010] Preferably, the first circulation pipeline and the steam outlet pipeline are independent of each other. The steam outlet pipeline includes two horizontally arranged second transverse pipelines, and the outlet holes are also arranged in two horizontally. The second transverse pipelines are connected to the outlet holes, and the ends of the second transverse pipelines are also sealed with circular plugs.
[0011] Preferably, the second steam inlet is located in the middle of the second transverse pipe, and steam is transmitted from the middle of the second transverse pipe to both ends and emerges outward through the vent holes.
[0012] Preferably, the second steam inlet is a T-shaped component; the second steam inlet includes an inlet at the bottom and outlets on both sides at the top, the outlets being connected to the middle of the second transverse pipeline; the end of the second steam inlet is also sealed with a circular plug.
[0013] Preferably, both the first support plate and the second support plate are equipped with a plurality of pads, and the pads are provided with fixing holes.
[0014] Preferably, the first steam inlet, the third steam outlet, and the fourth steam outlet are located at the same end of the heating panel, and the first steam inlet is located on the transverse center line of the heating panel.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] The heating panel of this invention has a first circulation pipe inside, through which steam circulates. The circulating steam heats the heating panel, thereby indirectly heating the corrugated cardboard placed on top of the heating panel. Specifically, the steam enters through a first steam inlet and exits through a first steam outlet and a second steam outlet, thus heating the heating panel. However, this heating method is indirect and not very efficient. To further improve heating efficiency, the heating panel also has a steam outlet pipe inside. The upper part has several outlet holes connected to the steam outlet pipe, and the lower part has a second steam inlet connected to the steam outlet pipe. Steam is continuously input into the second steam inlet; some of this steam heats the heating panel, while the rest escapes through the outlet holes, directly heating the corrugated cardboard. This results in faster heat transfer and reduced heat loss, effectively improving the production efficiency of the corrugated cardboard double-facer. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the front structure of a thin heating plate for a corrugated cardboard double-sided machine provided by this utility model;
[0019] Figure 2 This is a schematic diagram of the bottom structure of a thin heating plate for a corrugated cardboard double-sided machine provided by this utility model;
[0020] Figure 3 This is a cross-sectional view of the heating panel provided by this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the first support plate provided by this utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the second support plate provided by this utility model;
[0023] Figure 6 This is a schematic diagram of the structure of the second steam inlet provided by this utility model.
[0024] The diagram includes:
[0025] 1. Heating plate body; 2. Heating panel; 5. First circulation pipe; 21. First steam inlet; 22. First steam outlet; 23. Second steam outlet; 6. Steam escaping pipe; 61. Escape hole; 62. Second steam inlet; 3. First support plate; 4. Second support plate; 7. Second circulation pipe; 71. Third steam inlet; 72. Third steam outlet; 8. Third circulation pipe; 81. Fourth steam inlet; 82. Fourth steam outlet; 51. First transverse pipe; 52. Connecting groove; 53. Circular block; 54. Waist-shaped block; 91. Second transverse pipe; 621. Input port; 622. Output port; 40. Pad; 41. Fixing hole. Detailed Implementation
[0026] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Please refer to Figures 1 to 6 This utility model provides a thin heating plate for a corrugated cardboard double-sided machine.
[0028] like Figure 1 As shown, the thin heating plate of the corrugated cardboard double-facer needs to be installed on the corrugated cardboard double-facer to heat the corrugated cardboard on the double-facer, so that the glue on the corrugated cardboard is heated and cured, which can make the corrugated cardboard double-facer run faster, thereby improving the production efficiency of corrugated cardboard.
[0029] The thin heating plate for the corrugated cardboard double-facer includes a heating plate body 1, such as... Figure 1As shown, the heating plate body 1 may only include the heating panel 2 installed on the upper part; the heating panel 2 is directly installed on the corrugated cardboard double-facer to heat the corrugated cardboard on the double-facer. In order to heat the heating panel 2 itself to a higher temperature, thereby indirectly heating the corrugated cardboard, the heating panel 2 is provided with a first circulation pipe 5. The first circulation pipe 5 uses steam for circulation heating. A first steam inlet 21 is provided at the lower part of the heating panel 2, a first steam outlet 22 is provided on one side of the heating panel 2, and a second steam outlet 23 is provided on the other side of the heating panel 2; the first steam inlet 21 is located in the middle and flows to both sides, thereby circulating and heating the entire heating panel 2. Since the heating panel 2 is first circulated and heated with steam, and then the heating panel 2 is used to heat the corrugated cardboard, it is an indirect heating method, and the heating efficiency is not high enough.
[0030] Therefore, in order to further improve heating efficiency, a method of directly heating the corrugated cardboard is used. Specifically, the heating panel 2 is also provided with a steam outlet pipe 6 inside, with several outlet holes 61 connected to the steam outlet pipe 6 at the upper part, and a second steam inlet 62 connected to the steam outlet pipe 6 at the lower part. The second steam inlet 62 continuously inputs steam, part of which heats the heating panel 2, and the other part of which escapes outward through the outlet holes 61 to directly heat the corrugated cardboard. This makes heat transfer faster and heat loss less, which can effectively improve the production efficiency of the corrugated cardboard double-facer.
[0031] Furthermore, for easier installation; such as Figure 2 As shown, the heating plate body 1 also includes a first support plate 3 installed on one side of the heating panel 2 and a second support plate 4 installed on the other side of the heating panel 2; as Figure 4 As shown, the first support plate 3 is provided with a second circulation pipe 7 inside. One end of the second circulation pipe 7 is provided with a third steam inlet 71, and the other end is provided with a third steam outlet 72. The third steam inlet 71 is connected to the first steam outlet 22, so that the first circulation pipe 5 is connected to the second circulation pipe 7.
[0032] like Figure 5 As shown, the second support plate 4 is provided with a third circulation pipe 8 inside. One end of the third circulation pipe 8 is provided with a fourth steam inlet 81, and the other end is provided with a fourth steam outlet 82. The fourth steam inlet 81 is connected to the second steam outlet 23, so that the first circulation pipe 5 is connected to the third circulation pipe 8.
[0033] The steam flows back from both sides of the first support plate 3 and the second support plate 4, and the residual heat can also be used to heat the first support plate 3 and the second support plate 4, so that the overall temperature uniformity of the heating plate body 1 is good. At the same time, multiple steam outlets are provided to facilitate the timely removal of steam, reduce water accumulation inside the heating plate body 1, improve energy exchange efficiency, and effectively improve the production efficiency of the corrugated cardboard double-facer.
[0034] To better transfer heat, the heating panel 2 can be made of inexpensive steel components, and can be a one-piece component to facilitate subsequent drilling and machining. Figure 3 As shown, the first circulation pipe 5 includes several first transverse pipes 51 and several connecting grooves 52; the first transverse pipes 51 are evenly arranged on the heating panel 2, and the connecting grooves 52 are used to connect and guide the flow at their ends; so that the first circulation pipe 5 is in an "S" shape, with the flow entering from the middle and flowing to both sides, and connected to the first steam outlet 22 and the second steam outlet 23.
[0035] In actual processing, a first circulation pipe 5 is drilled inside the heating panel 2. The first transverse pipe 51 is machined using a deep hole drilling machine. The pipe is machined from both ends using a deep hole drill, thereby greatly reducing the thickness and volume of the heating panel 2, making it a thin plate. The connecting groove 52 can be machined using a milling cutter to connect the ends of the first transverse pipe 51, thus forming an "S"-shaped circulation. Figure 3 As shown, when the end of the first transverse pipe 51 does not need to be connected, a circular plug 53 is used to seal it to achieve a seal; similarly, a waist-shaped plug 54 is used to seal the end of the connecting groove 52.
[0036] Similarly, the manufacturing of the first support plate 3 follows the same principle. The first support plate 3 uses a steel block, and holes are drilled inside the steel block to form a straight circular flow channel, which is the second circulation pipe 7. The end is sealed with a circular plug 53, so that it enters from the upper third steam inlet 71 and flows out from the lower third steam outlet 72.
[0037] Similarly, the second support plate 4 also uses steel blocks, with holes drilled inside the steel blocks to form straight circular flow channels, which is the third circulation pipe 8. The ends are sealed with circular plugs 53, so that it enters from the upper fourth steam inlet 81 and flows out from the lower second steam outlet 23.
[0038] In this embodiment, as Figure 3 As shown, the first circulation pipe 5 and the steam outlet pipe 6 are independent of each other. In order to reduce the thickness of the heating panel 2, the first circulation pipe 5 and the steam outlet pipe 6 are on the same plane, but do not interfere with each other.
[0039] Furthermore, the steam venting pipe 6 includes two horizontally arranged second transverse pipes 91, and the venting hole 61 also has two horizontally arranged pipes; the second transverse pipes 91 are connected to the venting hole 61, and the ends of the second transverse pipes 91 are also sealed with circular plugs 53.
[0040] The second transverse pipe 91 is located near the middle of the heating panel 2. The vent holes 61 are evenly spaced. The second steam inlet 62 is located in the middle of the second transverse pipe 91. Steam is transmitted from the middle of the second transverse pipe 91 to both ends and emerges outward through the vent holes 61.
[0041] like Figure 6 As shown, the second steam inlet 62 is a T-shaped component; the second steam inlet 62 includes an input port 621 at the bottom and output ports 622 on both sides at the top. The input port 621 and the output port 622 are connected by an internal T-shaped pipe, which can be machined by drilling. The two sides are sealed with circular plugs 53; the output port 622 is connected to the middle of the second transverse pipe 91; thereby providing a continuous source of steam for the steam outlet pipe 6.
[0042] like Figure 4 and Figure 5 As shown, the first support plate 3 and the second support plate 4 are each equipped with a plurality of pads 40. The pads 40 are arranged at equal intervals and have fixing holes 41. The first support plate 3 and the second support plate 4 are fixed on the corrugated cardboard double-facer by using fasteners inserted into the fixing holes 41.
[0043] like Figure 2 As shown, the first steam inlet 21, the third steam outlet 72 and the fourth steam outlet 82 are located at the same end of the heating panel 2, the first steam inlet 21 is located on the horizontal center line of the heating panel 2; the second steam inlet 62 is located at the other end of the heating panel 2.
[0044] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. A thin heating plate for a corrugated cardboard double-facer, characterized in that: The device includes a heating plate body (1), which includes a heating panel (2) mounted on the upper part; the heating panel (2) is provided with a first circulation pipe (5) for heating the heating panel (2), the first circulation pipe (5) is connected to a first steam inlet (21) mounted on the lower part of the heating panel (2), a first steam outlet (22) mounted on one side of the heating panel (2) and a second steam outlet (23) mounted on the other side of the heating panel (2); the heating panel (2) is also provided with a steam venting pipe (6), the upper part is provided with a plurality of venting holes (61) connected to the steam venting pipe (6), and the lower part is provided with a second steam inlet (62) connected to the steam venting pipe (6); the venting holes (61) emit steam to heat the corrugated cardboard.
2. The thin heating plate for a corrugated cardboard double-sided machine according to claim 1, characterized in that: The heating plate body (1) further includes a first support plate (3) installed on one side of the heating panel (2) and a second support plate (4) installed on the other side of the heating panel (2); the first support plate (3) is provided with a second circulation pipe (7), one end of the second circulation pipe (7) is provided with a third steam inlet (71), and the other end is provided with a third steam outlet (72); the third steam inlet (71) is connected to the first steam outlet (22), so that the first circulation pipe (5) is connected to the second circulation pipe (7); the second support plate (4) is provided with a third circulation pipe (8), one end of the third circulation pipe (8) is provided with a fourth steam inlet (81), and the other end is provided with a fourth steam outlet (82); the fourth steam inlet (81) is connected to the second steam outlet (23), so that the first circulation pipe (5) is connected to the third circulation pipe (8).
3. A thin heating plate for a corrugated cardboard double-facer according to claim 1, characterized in that: The heating panel (2) is an integral component. The first circulation pipe (5) includes several first transverse pipes (51) and several connecting grooves (52). The first transverse pipes (51) are guided through the connecting grooves (52) to form an "S" shape, flowing to both sides, and connected to the first steam outlet (22) and the second steam outlet (23).
4. A thin heating plate for a corrugated cardboard double-facer according to claim 3, characterized in that: The heating panel (2) is provided with a first circulation pipe (5), the end of the first transverse pipe (51) is sealed with a circular plug (53), and the end of the connecting groove (52) is sealed with a waist-shaped plug (54).
5. A thin heating plate for a corrugated cardboard double-sided machine according to claim 2, characterized in that: The first support plate (3) has a second circulation pipe (7) drilled inside, and the end of the second circulation pipe (7) is sealed with a circular plug (53); the second support plate (4) has a third circulation pipe (8) drilled inside, and the end of the third circulation pipe (8) is also sealed with a circular plug (53).
6. A thin heating plate for a corrugated cardboard double-facer according to claim 1, characterized in that: The first circulation pipe (5) and the steam outlet pipe (6) are independent of each other. The steam outlet pipe (6) includes two horizontally arranged second horizontal pipes (91), and the outlet hole (61) is also arranged in two horizontally. The second horizontal pipes (91) are connected to the outlet hole (61), and the end of the second horizontal pipes (91) is also sealed with a circular plug (53).
7. A thin heating plate for a corrugated cardboard double-facer according to claim 6, characterized in that: The second steam inlet (62) is located in the middle of the second transverse pipe (91). Steam is transmitted from the middle of the second transverse pipe (91) to both ends and emerges outward through the vent (61).
8. A thin heating plate for a corrugated cardboard double-facer according to claim 7, characterized in that: The second steam inlet (62) is a T-shaped component; the second steam inlet (62) includes an inlet (621) at the bottom and outlets (622) on both sides at the top, and the outlets (622) are connected to the middle of the second transverse pipe (91); the end of the second steam inlet (62) is also sealed with a circular plug (53).
9. A thin heating plate for a corrugated cardboard double-facer according to claim 2, characterized in that: The first support plate (3) and the second support plate (4) are each equipped with a plurality of pads (40), and the pads (40) are provided with fixing holes (41).
10. A thin heating plate for a corrugated cardboard double-facer according to claim 2, characterized in that: The first steam inlet (21), the third steam outlet (72) and the fourth steam outlet (82) are located at the same end of the heating panel (2), and the first steam inlet (21) is located on the transverse center line of the heating panel (2).