Corrugated board paper pressing conveying belt heating device

Abstract

The utility model belongs to the technical field of heating, and particularly relates to a corrugated board paper pressing conveying belt heating device which comprises a rack, an arc-shaped heating plate and a conveying belt. And a mounting frame with supporting edges is arranged on the rack. The arc-shaped heating plate is mounted in the mounting frame, a heating mechanism is arranged on the arc-shaped heating plate, the heating mechanism comprises a steam pipe group for providing steam, and the steam pipe group is mounted on the arc-shaped heating plate and is used for heating the arc-shaped heating plate. Rotary rollers are arranged at the front end and the rear end of the mounting frame correspondingly, and the conveying belt is arranged between the arc-shaped heating plate and the rollers and is limited by the rollers so that the rollers can be tightly attached to the arc-shaped heating plate. In this way, the corrugated boards are rapidly and evenly heated, the standing time of the corrugated boards on a production line is shortened, and therefore the production efficiency is improved. In addition, through accurate control over the temperature, the quality problem caused by uneven temperature of the paperboard is reduced, and the qualified rate of products is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating, and in particular relates to a heating device for a corrugated paperboard pressing conveyor belt. Background Art

[0002] In the production process of corrugated cardboard, the paper pressing conveyor belt is an important component, which is responsible for transferring the cardboard from one process to another. However, in traditional corrugated cardboard production lines, the paper pressing conveyor belt often lacks an effective heating device, which leads to uneven temperature and excessive humidity during the transmission of the cardboard, thus affecting the quality and production efficiency of the cardboard.

[0003] The existing method of heating the corrugated cardboard conveyor belt is to heat the roller with steam, and then the heated roller heats the paper pressing conveyor belt. The disadvantages are: the conveyor belt wraps the roller heating method, the roller manufacturing cost is high, the space is large, the conveyor belt cannot be separated from the roller when the machine is stopped, and the conveyor belt is easily burned. If it is directly made into a flat heating plate, a very thick metal plate is required to withstand the steam pressure. Utility Model Content

[0004] The utility model aims to provide a corrugated paperboard press conveyor belt heating device, which adopts an integrally formed arc plate and a small tube welding method on the other side to solve the problem of steam pressure resistance.

[0005] To achieve the above-mentioned purpose, the utility model provides a corrugated paperboard press conveyor belt heating device, comprising a frame, an arc-shaped heating plate and a conveyor belt. The frame is provided with a mounting frame for supporting edges. The arc-shaped heating plate is installed in the mounting frame, and a heating mechanism is provided on the arc-shaped heating plate. The heating mechanism includes a steam pipe group for providing steam, and the steam pipe group is installed on the arc-shaped heating plate for heating the arc-shaped heating plate. Rotating rollers are provided at both the front and rear ends of the mounting frame, and the conveyor belt is arranged between the arc-shaped heating plate and the rollers, and the rollers are limited by the rollers so that the rollers are close to the arc-shaped heating plate.

[0006] Furthermore, the heating mechanism also includes a steam valve, one end of the steam pipe group is connected to the steam valve, and the other end is provided with a steam outlet, and the steam valve drives the steam to enter the steam valve and flow out from the steam outlet.

[0007] Furthermore, the steam pipe group includes a through-through full-tube steam pipe and a semicircular steam pipe, the full-tube steam pipe is installed on the arc-shaped heating plate through a heat-conducting member, and the cross section of the semicircular steam pipe is welded on the arc-shaped heating plate. One end of the full-tube steam pipe and the semicircular steam pipe are both connected to the steam valve, and the other end is provided with the same steam outlet, and the steam valve drives the steam to enter the steam valve and flow out from the steam outlet.

[0008] Furthermore, a heat-insulating layer for heat-insulating the semicircular steam pipe and the entire steam pipe is also provided on the mounting frame.

[0009] Furthermore, both ends of the roller are provided with a lifting mechanism, which includes a lifting cylinder, a universal floating joint and a cylinder rod. The cylinder rod is connected to the mounting frame, and the lifting cylinder is installed on the cylinder rod. The driving end of the lifting cylinder is connected to one end of the universal floating joint, and the other end is connected to an outer spherical bearing with a seat. The roller passes through the outer spherical bearing with a seat to drive the roller to rise or fall.

[0010] Furthermore, fixing blocks are provided at both ends of the arc-shaped heating plate, and fixing buckles are provided on the mounting frame, and the fixing blocks are fixed to the mounting frame through the fixing buckles; a gap is provided in the fixing buckle, and the fixing block can move in the fixing buckle.

[0011] Furthermore, an infrared temperature measuring probe is also provided on the mounting frame for detecting the temperature of the conveyor belt.

[0012] Furthermore, the arc-shaped heating plate is made of metal material.

[0013] The above one or more technical solutions in the corrugated paperboard press conveyor belt heating device provided by the embodiment of the utility model have at least the following technical effects:

[0014] The arc heating plate is used in this design, which is conducive to the close fit between the arc heating plate and the conveyor belt. The arc heating plate is heated by the heating mechanism, which increases the contact area between the heating surface and the conveyor belt, thereby improving the heat transfer efficiency. When the conveyor belt needs to be heated during the change process, the steam pipe group inputs steam into the body to increase the temperature. The steam pipe group is connected to the arc heating plate so that the heat is transferred to the arc heating plate. The conveyor belt is limited by the roller below and is further close to the arc heating plate. The conveyor belt is transmitted between the arc heating plate and the rotating roller. The conveyor belt is continuously heated. When it is necessary to stop heating the conveyor belt, the steam pipe group disconnects the steam supply, the arc heating plate cools down, and the conveyor belt stops heating. In this way, the corrugated cardboard is quickly and evenly heated, shortening the residence time of the cardboard on the production line, thereby improving production efficiency. In addition, through the precise control of temperature, the quality problems of the cardboard caused by uneven temperature are reduced, and the qualified rate of the product is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A structural diagram of a corrugated cardboard press conveyor belt heating device provided in an embodiment of the utility model.

[0017] Figure 2 A top view of the arc-shaped heating plate of the corrugated paperboard press conveyor belt heating device provided in an embodiment of the utility model.

[0018] Figure 3 for Figure 1 Figure A is a partial view of the middle part.

[0019] Figure 4 A structural diagram of the overall device for heating and producing a corrugated cardboard press conveyor belt provided in an embodiment of the utility model.

[0020] Description of main reference numerals: 100, frame; 110, mounting frame; 120, arc heating plate; 130, conveyor belt; 140, roller; 200, heating mechanism; 210, steam valve; 220, steam pipe group; 221, whole steam pipe; 222, semicircular steam pipe; 230, heat conducting member; 240, steam outlet; 250, infrared temperature measuring probe;

[0021] 300, lifting mechanism; 310, lifting cylinder; 320, universal floating joint; 330, cylinder rod;

[0022] 400, fixing buckle; 410, fixing block; 420, outer spherical bearing with seat;

[0023] 500, first paper pressing conveyor belt roller; 510, second paper pressing conveyor belt roller;

[0024] 600. Insulation layer. DETAILED DESCRIPTION

[0025] The following describes the embodiments of the present invention in detail. Figures 1 to 4 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 4 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0029] In the embodiment of the utility model, this case provides a heating device for a corrugated cardboard press conveyor belt 130, comprising a frame 100, an arc-shaped heating plate 120 and a conveyor belt 130. A mounting frame 110 with supporting edges is provided on the frame 100. The arc-shaped heating plate 120 is installed in the mounting frame 110, and a heating mechanism 200 is provided on the arc-shaped heating plate 120. The heating mechanism 200 includes a steam pipe group 220 for providing steam, and the steam pipe group 220 is installed on the arc-shaped heating plate 120 for heating the arc-shaped heating plate 120. Rotating rollers 140 are provided at both the front and rear ends of the mounting frame 110, and the conveyor belt 130 is arranged between the arc-shaped heating plate 120 and the rollers 140, and the rollers 140 are limited by the rollers 140 so that the rollers 140 are close to the arc-shaped heating plate 120.

[0030] Specifically, the arc heating plate 120 is used in this design, which is conducive to the close fit between the arc heating plate 120 and the conveyor belt 130. The arc heating plate 120 is heated by the heating mechanism 200, which increases the contact area between the heating surface and the conveyor belt 130, thereby improving the heat transfer efficiency. When the conveyor belt 130 needs to be heated during the change process, the steam pipe group 220 inputs steam into the body to increase the temperature. The steam pipe group 220 is connected to the arc heating plate 120 so that heat is transferred to the arc heating plate 120. The conveyor belt 130 is limited by the roller 140 below and is further close to the arc heating plate 120. The conveyor belt 130 is transmitted between the arc heating plate 120 and the rotating roller 140. The conveyor belt 130 is continuously heated. When it is necessary to stop heating the conveyor belt 130, the steam pipe group 220 disconnects the steam supply, the arc heating plate 120 cools down, and the conveyor belt 130 stops heating. In this way, the corrugated cardboard is quickly and evenly heated, shortening the residence time of the cardboard on the production line, thereby improving production efficiency. In addition, through the precise control of temperature, the quality problems of the cardboard caused by uneven temperature are reduced, and the qualified rate of the product is further improved.

[0031] In another embodiment of the utility model, the temperature raising mechanism 200 further includes a steam valve 210. One end of the steam pipe group 220 is connected to the steam valve 210, and the other end is provided with a steam outlet 240. The steam valve 210 drives the steam to enter the steam valve 210 and flow out from the steam outlet 240. The arc heating plate 120 is made of metal material. The arc heating plate 120 is made of metal materials such as stainless steel. Due to its good thermal conductivity, it can quickly transfer the heat energy in the whole steam pipe 221 to the arc heating plate 120. By opening and closing the steam valve 210, the temperature of the arc heating plate 120 can be controlled; the steam valve 210 can be a steam solenoid valve, a steam pneumatic valve, a steam regulating valve or other valves. The precise control of the steam valve 210 can ensure the stability of the flow rate and temperature of the steam.

[0032] In another embodiment of the utility model, the steam pipe group 220 includes a through-through whole-tube steam pipe 221 and a semicircular steam pipe 222. The whole-tube steam pipe 221 is installed on the arc heating plate 120 through a heat conductive member 230, and the cross section of the semicircular steam pipe 222 is welded on the arc heating plate 120. One end of the whole-tube steam pipe 221 and the semicircular steam pipe 222 are both connected to the steam valve 210, and the other end is provided with the same steam outlet 240. The steam valve 210 drives the steam to enter the steam valve 210 and flow out from the steam outlet 240. Specifically, the semicircular steam pipe 222 works together with the whole-tube steam pipe 221, and the welded cross section ensures that the heat can be more effectively transferred from the steam to the heating plate, rather than being lost at the connection. The heat distribution on the arc heating plate 120 is made more uniform. The heat conductive member 230 uses heat conductive materials such as thermal paste and solder to assist in heat conduction to achieve rapid heating of the corrugated cardboard. The design of the whole-tube steam pipe 221 enables the steam to be evenly distributed on the entire surface of the arc-shaped heating plate 120, thereby avoiding the problem of local overheating or insufficient heating.

[0033] In another embodiment of the utility model, a heat-insulating layer 600 for heat-insulating the semicircular steam pipe 222 and the whole steam pipe 221 is further provided on the mounting frame 110. The provision of the heat-insulating layer 600 effectively reduces the heat loss of steam during the transmission process of the semicircular steam pipe 222 and the whole steam pipe 221. By preventing the heat from being lost to the environment prematurely, the heat-insulating layer 600 ensures that the heat energy carried by the steam can be more efficiently transferred to the arc-shaped heating plate 120, thereby improving the utilization rate of heat energy.

[0034] In another embodiment of the utility model, both ends of the roller 140 are provided with a lifting mechanism 300, the lifting mechanism 300 includes a lifting cylinder 310, a universal floating joint 320 and a cylinder rod 330, the cylinder rod 330 is connected to the mounting frame 110, the lifting cylinder 310 is mounted on the cylinder rod 330, the driving end of the lifting cylinder 310 is connected to one end of the universal floating joint 320, and the other end is connected to the outer spherical bearing 420 with a seat, and the roller 140 passes through the outer spherical bearing 420 with a seat to drive the roller 140 to rise or fall. The cylinder rod 330 and the lifting cylinder 310 are connected to the universal floating joint 320 through threads, the lifting cylinder 310 is connected to the universal floating joint 320 and the outer spherical bearing 420 with a seat, and the roller 140 is mounted on the left and right outer spherical bearings 420 with a seat. The lifting cylinder 310 is supplied with a high-pressure gas source, which can drive the cylinder rod 330 to move up and down, thereby driving the roller 140 to move up and down.

[0035] In another embodiment of the utility model, a fixing block 410 is further provided at both ends of the arc-shaped heating plate 120, a fixing buckle 400 is provided on the mounting frame 110, and the fixing block 410 is fixed to the mounting frame 110 through the fixing buckle 400; a gap is provided in the fixing buckle 400, and the fixing block 410 can move in the fixing buckle 400. Specifically, a fixing block 410 is further provided at both ends of the arc-shaped heating plate 120, a fixing buckle 400 is provided on the mounting frame 110, and the fixing block 410 is fixed to the mounting frame 110 through the fixing buckle 400; a cavity is provided in the fixing buckle 400, and the fixing block 410 can move in the gap. Specifically, a fixing block 410 is installed at both ends of the arc-shaped heating plate 120, and the fixing buckle 400 fixes the fixing block 410 to the mounting frame 110, and at the same time, there is a gap between the fixing block 410 and the fixing buckle 400 for movement, so as to prevent the arc-shaped heating plate 120 from deforming when it expands and contracts due to heat. Fixed blocks 410 are installed at both ends of the arc heating plate 120, and the fixing buckles 400 fix the fixed blocks 410 on the mounting frame 110. At the same time, there is a gap between the fixed blocks 410 and the fixing buckles 400 for movement to prevent the arc heating plate 120 from deforming due to thermal expansion and contraction.

[0036] In another embodiment of the utility model, an infrared temperature probe 250 is also provided on the mounting frame 110 to detect the temperature of the conveyor belt 130. Steam enters the semicircular steam pipe 222 and the whole steam pipe 221 from the steam valve 210 (it can also be other valves such as a pneumatic valve), and the steam transfers heat to the arc heating plate 120, and the arc heating plate 120 transfers heat to the conveyor belt 130, so that the pressboard conveyor belt 130 transfers heat to the corrugated paper. When the infrared temperature probe 250 detects that the temperature of the conveyor belt 130 is too high, the PLC or the external temperature probe instrument sends a signal to the steam valve 210, and the steam valve 210 is closed to stop the steam supply. If the temperature of the press conveyor belt 130 is too low, the steam valve 210 is opened to pass steam to heat the conveyor belt 130. In this way, the temperature of the conveyor belt 130 is controlled.

[0037] In another embodiment of the utility model, the first paper pressing conveyor belt roller 500 is fixed on one side of the corrugated paper frame 100, the first paper pressing conveyor belt roller 500 is driven by a motor, and the conveyor belt 130 is sleeved on the first paper pressing paper conveyor belt roller 500 and the second paper pressing paper conveyor belt roller 510. The motor is powered on to drive the motor to rotate, driving the first paper pressing paper conveyor belt 130 roller to rotate, so that the conveyor belt 130 moves. After multiple layers of paper are compounded together to become corrugated paperboard, the corrugated paperboard is pressed and dragged forward by the conveyor belt 130, and is heated by the hot plate under the conveyor belt 130. The corrugated paperboard is heated and dried to become a finished corrugated paperboard.

[0038] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated paperboard press conveyor belt heating device, characterized in that: include A frame (100), wherein the frame (100) is provided with a mounting frame (110) having supporting edges; An arc-shaped heating plate (120) is installed in the installation frame (110); a temperature increasing mechanism (200) is provided on the arc-shaped heating plate (120); the temperature increasing mechanism (200) comprises a steam pipe group (220) for providing steam; the steam pipe group (220) is installed on the arc-shaped heating plate (120) and is used to heat the arc-shaped heating plate (120); A conveyor belt (130), wherein rotating rollers (140) are provided at both the front and rear ends of the mounting frame (110), and the conveyor belt (130) is arranged between the arc-shaped heating plate (120) and the rollers (140), and is limited by the rollers (140) so that the rollers (140) are closely attached to the arc-shaped heating plate (120).

2. The corrugated paperboard press conveyor belt heating device according to claim 1, characterized in that: The temperature raising mechanism (200) further comprises a steam valve (210); one end of the steam pipe group (220) is connected to the steam valve (210); the other end is provided with a steam outlet (240); the steam valve (210) drives the steam to enter the steam valve (210) and flow out from the steam outlet (240).

3. The corrugated board press conveyor belt heating device according to claim 2, characterized in that: The steam pipe group (220) comprises a through-going full-tube steam pipe (221) and a semi-circular steam pipe (222); the full-tube steam pipe (221) is installed on the arc-shaped heating plate (120) via a heat-conducting member (230), and the cross section of the semi-circular steam pipe (222) is welded on the arc-shaped heating plate (120); one end of the full-tube steam pipe (221) and the semi-circular steam pipe (222) are both connected to the steam valve (210), and the other end is provided with the same steam outlet (240); the steam valve (210) drives the steam to enter the steam valve (210) and flow out from the steam outlet (240).

4. The corrugated board press conveyor belt heating device according to claim 3, characterized in that: The installation frame (110) is also provided with a heat-insulating layer (600) for heat-insulating the semicircular steam pipe (222) and the entire steam pipe (221).

5. The corrugated board press conveyor belt heating device according to claim 1, characterized in that: Both ends of the roller (140) are provided with a lifting mechanism (300), the lifting mechanism (300) comprising a lifting cylinder (310), a universal floating joint (320) and a cylinder rod (330), the cylinder rod (330) being connected to the mounting frame (110), the lifting cylinder (310) being mounted on the cylinder rod (330), the driving end of the lifting cylinder (310) being connected to one end of the universal floating joint (320), and the other end being connected to a seated outer spherical bearing (420), the roller (140) passing through the seated outer spherical bearing (420) to drive the roller (140) to rise or fall.

6. The corrugated board press conveyor belt heating device according to claim 1, characterized in that: The two ends of the arc-shaped heating plate (120) are also provided with fixing blocks (410); the mounting frame (110) is provided with fixing buckles (400); the fixing blocks (410) are fixed to the mounting frame (110) via the fixing buckles (400); a gap is provided in the fixing buckles (400), and the fixing blocks (410) can move in the fixing buckles (400).

7. The corrugated board press conveyor belt heating device according to any one of claims 1 to 6, characterized in that: The installation frame (110) is also provided with an infrared temperature measuring probe (250) for detecting the temperature of the conveyor belt (130).

8. The corrugated board press conveyor belt heating device according to any one of claims 1 to 6, characterized in that: The arc-shaped heating plate (120) is made of metal material.

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