Edge ironing device for papermaking felt

By introducing a cooling device into the edge-heating device, the edge of the papermaking blanket is rapidly cooled using air-cooling technology. This solves the problems of shape deformation and low production efficiency caused by residual heat after edge-heating, achieving efficient cooling and winding processes, and improving the quality and production efficiency of the blanket.

CN224119291UActive Publication Date: 2026-04-14XUZHOU JINGUAN IND FABRICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

After the edges of the papermaking felt are ironed using an edge-ironing machine, there will still be residual heat at the edges, making it impossible to roll up immediately, which takes up space, reduces production efficiency, and may cause deformation due to excessive residual heat, thus reducing the quality of the felt.

Method used

A heat-pressing device including a cooling unit was designed. The cooling unit uses an air pump to draw gas into the air box and spray it out through the nozzle to cool the edge of the heat-pressed papermaking felt. The cooling unit is adjustable to accommodate felts of different thicknesses. Combined with conveyor belt conveying and heating and extrusion by the heat-pressing roller, rapid cooling and winding are achieved.

Benefits of technology

It effectively avoids deformation caused by excessive residual heat at the edges of the papermaking blanket, improves processing efficiency and blanket quality, and facilitates quick and easy roll-up and storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an edge ironing device for a papermaking felt, which relates to the field of edge ironing devices, comprises a base, and is provided with a cooling device, so that a second bracket and a spray pipe can be adjusted to a certain height on a first bracket by starting an adjusting device according to the thickness of the papermaking felt; the corrugated pipe can be correspondingly stretched or contracted, then when the edge ironing machine irons the edge of the paper making felt and conveys the paper making felt out through the conveying belt, the air pump can be started to suck air into the air inlet box, and then the air enters the corrugated pipe through the outlet and is exhausted through the spraying pipe. According to the technical scheme, the air is blown to the position, subjected to edge ironing processing, of the papermaking felt to conduct air cooling on the papermaking felt, in this way, after the papermaking felt is directly wound in the later period, the situation that the shape of the papermaking felt is deformed due to the fact that the residual temperature at the edge of the papermaking felt is too high is avoided, the quality of the processed papermaking felt is improved, winding and storage are convenient and fast, and the processing efficiency of the papermaking felt is improved.
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Description

Technical Field

[0001] This utility model relates to the field of edge-heating devices, and in particular to an edge-heating device for papermaking blankets. Background Technology

[0002] Edge-pressing devices are typically used to process the edges of felts during the papermaking process. These devices primarily use heating, pressure, and friction to compact or secure the edges of the paper machine felts, preventing deformation, detachment, or other problems during use.

[0003] After the edges of the papermaking felt are ironed using an edge-ironing machine, the edges of the felt will still have residual heat. It cannot be rolled up and stored immediately, as this will take up storage space and reduce production efficiency. If it is rolled up and stored without cooling, the residual heat at the edges of the felt will be too high, causing the felt to deform and reducing its quality. Utility Model Content

[0004] The technical problem this utility model aims to solve is that after the edge of the papermaking blanket is heated by the heat-pressing machine, the edge of the papermaking blanket will still have residual heat, making it impossible to roll it up and store it immediately. This will easily occupy storage space and reduce production efficiency. If it is rolled up and stored without cooling, the residual heat at the edge of the papermaking blanket will be too high, causing the papermaking blanket to deform and reducing its quality.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a hot-edge device for papermaking felt, including a base, with round shafts symmetrically installed on the inner wall of the base, and a conveyor belt sleeved on the outer surface of the round shafts. A motor is fixedly installed on one side of the base, and its output end is fixedly connected to one end of one of the round shafts by means of a coupling. A hot-edge machine is provided on the top of the base, and lifting frames are symmetrically arranged on the inner wall of the hot-edge machine. A hot-edge roller is provided on one side of the lifting frame. A cooling device is provided on one side of the top of the base. The cooling device can use an air pump to draw gas into a wind box and then spray it out through a nozzle to perform air cooling treatment on the edge of the papermaking felt after hot-edge treatment.

[0006] The aforementioned components achieve the following effect: When using the edge-pressing machine to heat the edges of papermaking felt, the internal drive mechanism of the edge-pressing machine is activated according to the required thickness and width of the felt. This activates the two lifting frames and two edge-pressing rollers, adjusting them to the appropriate height and distance. Simultaneously, the edge-pressing machine heats the edge-pressing rollers to a specific surface temperature. The finished papermaking felt is then laid flat on a conveyor belt. The motor on the base rotates the shaft, which in turn drives the conveyor belt to transport the felt. Once inside the edge-pressing machine, below the edge-pressing rollers, the rollers heat and press the edges of the felt to heat and heat them. After processing, the felt is cooled by a cooling device before being fixed to a winding machine for winding and storage. It should be noted that the edge-pressing machine is a mature technology and equipment; its internal structure, connection methods, and operating principles will not be elaborated upon further.

[0007] Preferably, the cooling device includes a first bracket and a second bracket, wherein the two ends of the first bracket are respectively fixedly installed on the top two sides of the base, and an adjustment device is provided between the first bracket and the second bracket; a wind box, wherein one side of the wind box is fixedly installed on one side of the first bracket, an air pump is fixedly installed at the inlet of the wind box, and corrugated pipes are symmetrically installed on one side of the wind box; and a spray pipe, wherein the outer surfaces of the two ends of the spray pipe are respectively fixedly installed in the inner walls of the two ends of the second bracket, and the outer surfaces are connected to one end of the corrugated pipe.

[0008] The effects achieved by the above components are as follows: By setting up a cooling device, the second support and the nozzle can be adjusted to a certain height on the first support according to the thickness of the papermaking felt. The corrugated pipe will be stretched or contracted accordingly. Then, when the edge-heating machine finishes the edge-heating process of the papermaking felt and it is conveyed out by the conveyor belt, the air pump can be started to draw gas into the air box, and then into the corrugated pipe through the outlet. The gas is then discharged through the nozzle and blown onto the edge of the papermaking felt that has been heat-heated, thus cooling it down. In this way, when the papermaking felt is rolled up later, the residual temperature at the edge will not be too high, which will cause deformation. This improves the quality of the papermaking felt after processing, makes it easier to roll up and store quickly, and improves the processing efficiency of the papermaking felt.

[0009] Preferably, a semiconductor refrigeration chip is fixedly installed on the outer surface of the air box, and the semiconductor refrigeration chip has a rectangular cross-section.

[0010] The effect achieved by the above components is as follows: by setting the semiconductor cooling chip in a rectangular shape, its inner wall can fit more closely to the surface of the air box, which facilitates the cooling treatment of the air box surface. The air inside the air box will exchange heat after contacting the surface of the air box to form cold air, thereby improving the cooling efficiency in the later stage.

[0011] Preferably, a plurality of guide plates are fixedly connected to the inner wall of the wind box, and the plurality of guide plates are fixed inside the wind box in a symmetrical, staggered, and inclined manner.

[0012] The effect achieved by the above components is that by setting the deflector, the airflow path inside the air box can be increased, allowing it to fully contact the surface of the air box and achieve a rapid cooling effect.

[0013] Preferably, filters are fixedly installed on the inner walls of several outlets of the nozzle.

[0014] The effect achieved by the above components is that by setting up a filter screen, the inlet of the nozzle can be protected, making it difficult for dust and lint in the air to enter the interior of the nozzle and avoiding blockage.

[0015] Preferably, the adjusting device includes an electric telescopic rod, wherein the two ends of the electric telescopic rod are respectively fixedly installed on one side of the first bracket and the second bracket.

[0016] The effect achieved by the above components is that, by setting up an electric telescopic rod, when cooling the surface of the papermaking blanket, the electric telescopic rod can be activated to drive the second support to move up or down to a certain height according to the thickness of the papermaking blanket, which is convenient for use in conjunction with cooling.

[0017] Preferably, a reinforcing rod is symmetrically fixedly installed on the outer surface of the output end of the electric telescopic rod, and one side of the reinforcing rod is fixedly installed on one side of the second bracket.

[0018] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between the first bracket and the output rod of the electric telescopic rod can be increased, making the connection more secure.

[0019] Preferably, the first bracket has symmetrically provided limit holes on one side, and the second bracket has symmetrically fixedly installed limit rods on one side, with the limit holes and limit rods being slidably connected.

[0020] The effect achieved by the above components is that by setting the limiting rod and limiting hole, the two ends of the second bracket can be limited, so that it is not easy to shake when moving up and down.

[0021] The beneficial effects of this utility model are:

[0022] By setting up a cooling device, the second support and the nozzle can be adjusted to a certain height on the first support according to the thickness of the papermaking felt. The corrugated pipe will be stretched or contracted accordingly. After the edge-heating machine finishes the edge-heating process of the papermaking felt, it is conveyed out by the conveyor belt. The air pump can be started to draw air into the air inlet box, and then into the corrugated pipe through the outlet. The air is then discharged through the nozzle and blown onto the edge-heated part of the papermaking felt for air cooling. This way, when the papermaking felt is rolled up later, the residual temperature at the edge will not be too high, which will cause deformation. This improves the quality of the papermaking felt after processing, facilitates quick and easy winding and storage, and improves the processing efficiency of the papermaking felt. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the first support of this utility model;

[0026] Figure 3 for Figure 2 A three-dimensional schematic diagram of a partial structure at the central air box;

[0027] Figure 4 for Figure 2 A three-dimensional schematic diagram of a partial structure at the central nozzle.

[0028] Legend: 1. Base; 2. Cooling device; 3. Adjusting device; 4. Round shaft; 5. Conveyor belt; 6. Motor; 7. Ironing edge machine; 8. Lifting frame; 9. Ironing edge roller; 21. First support; 22. Second support; 23. Air box; 24. Air pump; 25. Corrugated pipe; 26. Nozzle; 27. Semiconductor cooling chip; 28. Guide plate; 29. ​​Filter screen; 31. Electric telescopic rod; 32. Reinforcing rod; 33. Limiting hole; 34. Limiting rod. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figure 1-4 The illustrated edge-pressing device for papermaking felt includes a base 1. A circular shaft 4 is symmetrically installed through the inner wall of the base 1. A conveyor belt 5 is fitted onto the outer surface of the circular shaft 4. A motor 6 is fixedly installed on one side of the base 1, and its output end is fixedly connected to one end of one of the circular shafts 4 via a coupling. An edge-pressing machine 7 is installed on the top of the base 1. A lifting frame 8 is symmetrically arranged on the inner wall of the edge-pressing machine 7. An edge-pressing roller 9 is installed on one side of the lifting frame 8. A cooling device 2 is installed on one side of the top of the base 1. The cooling device 2 can use an air pump 24 to draw gas into a wind box 23 and then spray it out through a nozzle 26 to perform air-cooling treatment on the edge of the papermaking felt after edge pressing. When using the edge-pressing machine 7 to heat the edges of papermaking felt, the internal drive mechanism of the machine is activated according to the required thickness and width of the felt. This activates the two lifting frames 8 and the two edge-pressing rollers 9 to adjust to the appropriate height and distance. Simultaneously, the machine heats the rollers 9 to a certain surface temperature. The finished felt is then laid flat on the conveyor belt 5. The motor 6 on the base 1 drives the shaft 4 to rotate, which in turn drives the conveyor belt 5 to transport the felt. Once inside the machine, below the edge-pressing rollers 9, the rollers heat and press the edges of the felt. After processing, the felt is cooled by the cooling device 2 before being fixed to the winding machine for storage. It should be noted that the edge-pressing machine 7 is a mature technology and equipment; its internal structure, connection method, and principle will not be elaborated upon further.

[0032] Figure 1-4The cooling device 2 shown includes a first bracket 21 and a second bracket 22, wherein the two ends of the first bracket 21 are fixedly installed on the top two sides of the base 1, and an adjustment device 3 is provided between the first bracket 21 and the second bracket 22; a wind box 23, wherein one side of the wind box 23 is fixedly installed on one side of the first bracket 21, an air pump 24 is fixedly installed at the inlet of the wind box 23, and a corrugated pipe 25 is symmetrically installed on one side of the wind box 23; and a spray pipe 26, wherein the outer surfaces of the two ends of the spray pipe 26 are fixedly installed in the inner walls of the two ends of the second bracket 22, and the outer surfaces are connected to one end of the corrugated pipe 25. Depending on the thickness of the papermaking felt, the adjusting device 3 can be activated to adjust the second support 22 and the nozzle 26 to a certain height on the first support 21. The corrugated pipe 25 will be stretched or contracted accordingly. After the edge-heating machine 7 finishes heat-heating the edge of the papermaking felt and it is conveyed out by the conveyor belt 5, the air pump 24 can be activated to draw air into the air box 23, and then into the corrugated pipe 25 through the outlet. The air is then discharged through the nozzle 26 and blown onto the heat-heated area of ​​the papermaking felt for air cooling. This prevents the papermaking felt from deforming due to excessive residual heat at the edge after it is rolled up later, improving the quality of the processed papermaking felt, facilitating quick and easy winding and storage, and increasing the processing efficiency of the papermaking felt. A semiconductor cooling chip 27 is fixedly installed on the outer surface of the air box 23. The cross-section of the semiconductor cooling chip 27 is rectangular. By setting the semiconductor cooling chip 27 into a rectangular shape, its inner wall can fit more closely to the surface of the air box 23, which facilitates the cooling treatment of the surface of the air box 23. This allows the air inside to exchange heat and form cold air after contacting the surface of the air box 23, thereby improving the cooling efficiency in the later stages.

[0033] Figure 1-4 The inner wall of the bellows 23 shown is fixedly connected with several guide plates 28, which are symmetrically and alternately inclined and fixed inside the bellows 23. By setting the guide plates 28, the airflow path inside the bellows 23 can be increased, allowing it to fully contact the surface of the bellows 23 and achieve a rapid cooling effect. Filters 29 are fixedly installed on the inner wall of several outlets of the nozzle 26. By setting the filters 29, the inlet of the nozzle 26 can be protected, preventing dust and lint in the air from entering the interior of the nozzle 26 and avoiding blockage.

[0034] Figure 1-4 The adjustment device 3 shown includes an electric telescopic rod 31, with both ends of the electric telescopic rod 31 fixedly installed on one side of the first bracket 21 and the second bracket 22, respectively. By setting the electric telescopic rod 31, when cooling the surface of the papermaking felt, the electric telescopic rod 31 can be activated to drive the second bracket 22 to move up or down to a certain height according to the thickness of the papermaking felt, which is convenient for use in conjunction with cooling.

[0035] Figure 1-4 A reinforcing rod 32 is symmetrically fixedly installed on the outer surface of the output end of the electric telescopic rod 31 shown. One side of the reinforcing rod 32 is fixedly installed on one side of the second bracket 22. By setting the reinforcing rod 32, the connection area between the first bracket 21 and the output rod of the electric telescopic rod 31 can be increased, making the connection more secure. A limiting hole 33 is symmetrically opened on one side of the first bracket 21, and a limiting rod 34 is symmetrically fixedly installed on one side of the second bracket 22. The limiting hole 33 and the limiting rod 34 are slidably connected. By setting the limiting rod 34 and the limiting hole 33, the two ends of the second bracket 22 can be limited, making it less likely to shake when moving up and down.

[0036] Working Principle: When using the edge-pressing machine 7 to heat the edges of the papermaking felt, the internal drive mechanism of the edge-pressing machine 7 is activated according to the required thickness and width of the felt. This drives the two lifting frames 8 and the two edge-pressing rollers 9 to adjust to the corresponding height and distance. Simultaneously, the edge-pressing machine 7 heats the edge-pressing rollers 9 to a certain surface temperature. The finished papermaking felt is then laid flat on the conveyor belt 5. The motor 6 on the base 1 is then activated, driving the circular shaft 4 to rotate, which in turn drives the conveyor belt 5 to transport the papermaking felt. When the felt is transported into the edge-pressing machine 7, below the edge-pressing rollers 9, the edge is heat-pressed. Roller 9 heats and presses the edges of the papermaking felt. After the edge-pressing machine 7 finishes the edge-pressing process, the felt is conveyed out by conveyor belt 5. At this time, air pump 24 can be started to draw air into the air inlet box 23, and then into the corrugated pipe 25 through the outlet. The air is then discharged through nozzle 26 and blown onto the edge-pressed area of ​​the papermaking felt for air cooling. This prevents the papermaking felt from deforming due to excessive residual heat at the edges when it is rolled up later, thus improving the quality of the papermaking felt after processing, facilitating quick and easy winding and storage, and increasing the processing efficiency of the papermaking felt.

[0037] When cooling the surface of the papermaking blanket, the electric telescopic rod 31 can be activated to drive the second support 22 to move up or down to a certain height, depending on the thickness of the papermaking blanket, so as to facilitate cooling.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A heat-sealing device for papermaking felt, comprising a base (1), characterized in that: The inner wall of the base (1) is symmetrically fitted with round shafts (4), and the outer surface of the round shafts (4) is fitted with a conveyor belt (5). A motor (6) is fixedly installed on one side of the base (1), and its output end is fixedly connected to one end of one of the round shafts (4) by means of a coupling. An edge-heating machine (7) is provided on the top of the base (1). A lifting frame (8) is symmetrically arranged on the inner wall of the edge-heating machine (7). An edge-heating roller (9) is provided on one side of the lifting frame (8). A cooling device (2) is provided on one side of the top of the base (1). The cooling device (2) can use an air pump (24) to draw gas into the air box (23) and then spray it out through the nozzle (26) to perform air-cooling treatment on the edge of the papermaking blanket after edge-heating.

2. The edge-pressing device for papermaking blankets according to claim 1, characterized in that: The cooling device (2) includes a first bracket (21) and a second bracket (22), wherein the two ends of the first bracket (21) are fixedly installed on the top two sides of the base (1), and an adjustment device (3) is provided between the first bracket (21) and the second bracket (22); A bellows (23), wherein one side of the bellows (23) is fixedly installed on one side of the first bracket (21), an air pump (24) is fixedly installed at the inlet of the bellows (23), and corrugated pipes (25) are symmetrically installed on one side of the bellows (23). The nozzle (26) has its two outer surfaces fixedly installed in the inner walls of the two ends of the second bracket (22), and its outer surfaces are connected to one end of the corrugated pipe (25).

3. The edge-pressing device for papermaking blankets according to claim 2, characterized in that: A semiconductor cooling chip (27) is fixedly installed on the outer surface of the wind box (23), and the cross-section of the semiconductor cooling chip (27) is rectangular.

4. The edge-pressing device for papermaking blankets according to claim 2, characterized in that: The inner wall of the bellows (23) is fixedly connected with several guide plates (28), and the several guide plates (28) are fixed inside the bellows (23) in a symmetrical and staggered manner.

5. The edge-sealing device for papermaking blankets according to claim 2, characterized in that: A filter screen (29) is fixedly installed on the inner wall of several outlets of the nozzle (26).

6. The edge-pressing device for papermaking blankets according to claim 2, characterized in that: The adjustment device (3) includes an electric telescopic rod (31), wherein the two ends of the electric telescopic rod (31) are respectively fixedly installed on one side of the first bracket (21) and the second bracket (22).

7. The edge-pressing device for papermaking blankets according to claim 6, characterized in that: A reinforcing rod (32) is symmetrically fixedly installed on the outer surface of the output end of the electric telescopic rod (31), and one side of the reinforcing rod (32) is fixedly installed on one side of the second bracket (22).

8. The edge-pressing device for papermaking blankets according to claim 6, characterized in that: The first bracket (21) has symmetrically provided limiting holes (33) on one side, and the second bracket (22) has symmetrically fixedly installed limiting rods (34) on one side, and the limiting holes (33) and the limiting rods (34) are slidably connected.