A two-roll calender for fabric processing

Abstract

This utility model relates to the field of calendering technology and discloses a two-roll calendering machine for fabric processing. The calendering machine adopts a preheating working structure. A preheating mechanism is set at the front of the rolls. A preheating roll is installed on the front side of the calendering platform by a preheating support. The preheating roll is driven by a hot roll drive motor. While moving and guiding the fabric, it can preheat the fabric. Combined with the secondary heating of the rear rolls, the fabric can be stably heated. The double gradual heating can effectively reduce the heating range of the fabric and avoid fabric damage caused by overheating, which is conducive to improving the quality of fabric calendering. In addition, steam spray seats are set at both the front and rear of the preheating rolls. While assisting in heating, they can increase the moisture content of the fabric, which is conducive to the fabric calendering process. The steam spray seats are installed by fitting into the preheating support through slots, which is convenient for disassembly and assembly, and improves the convenience of disassembly, assembly and maintenance of the device.

Description

Technical Field

[0001] This utility model relates to the field of calendering technology, specifically a two-roll calendering machine for fabric processing. Background Technology

[0002] The development of fabric finishing technology is moving towards product functionalization, differentiation, and high-end products, as well as diversified and in-depth processing techniques. It emphasizes improving product performance and increasing added value. In the textile industry, fabric finishing processes are crucial, with calendering being a key step in enhancing fabric luster, smoothness, and hand feel. This typically involves soft rollers applying pressure to heated rollers under the action of an oil pressure device, causing the fabric to calender. To meet the different requirements of various textiles for smoothness and softness during calendering, this is generally achieved by changing the rollers or adjusting the oil pressure device to create different working pressures.

[0003] In order to ensure the calendering effect of the fabric, the temperature and humidity conditions of the fabric must be guaranteed during calendering. Traditional calendering machines mostly heat the fabric only at the calendering roll. Since the temperature difference range of a single heating is large, the temperature of the roll is often set too high to meet the heating requirements. Its control accuracy of the fabric temperature is not good, and the calendering quality of the fabric is easily reduced due to overheating of the roll. Therefore, a two-roll calendering machine for fabric processing is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a two-roll calender for fabric processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-roll calender for fabric processing, comprising a calendering mechanism and a preheating mechanism. The calendering mechanism includes a calendering platform, a fixed roll, a movable roll, and a roll drive motor. The fixed roll and the movable roll are mounted on the upper part of a support at the rear of the calendering platform in an up-down opposing configuration, driven by the roll drive motor. Synchronous gears are installed at the rear shaft ends of both the fixed roll and the movable roll.

[0006] The preheating mechanism includes a preheating support, a preheating roller, a hot roller drive motor, and a steam spray nozzle. Multiple preheating rollers are provided. The preheating rollers are supported by the preheating support and driven by the hot roller drive motor and installed in the middle of the calendering table. The steam spray nozzles are arranged in pairs. The two sets of steam spray nozzles are installed on the front and rear sides of the preheating support respectively through slot fitting support.

[0007] Preferably, a calendering support is fixedly installed on the upper rear side of the calendering platform, and the fixed roller is rotatably mounted on the lower middle side of the calendering support via a rotating shaft. A conveying reversing roller is rotatably mounted on the front of the calendering support via a rotating shaft.

[0008] Preferably, the edge of the above-mentioned calendering support is provided with a lifting guide groove, and floating shaft seats are slidably fitted inside the groove openings of the two sets of lifting guide grooves. The movable roller is rotatably installed between the two sets of floating shaft seats by means of a rotating shaft support. An adjusting bolt is installed on the upper part of the calendering support, and the bottom end of the adjusting bolt is supported and abutted against the upper part of the floating shaft seat.

[0009] Preferably, the aforementioned roll drive motor is fixedly installed on the lower part of the calendering table by a support. Both the roll drive motor and the front shaft end of the fixed roll are equipped with drive sprockets. Transmission chains are installed on the upper part of the two sets of drive sprockets. The two sets of synchronous gears are respectively fixedly installed on the rear shaft ends of the fixed roll and the movable roll. The two sets of synchronous gears are connected by tooth groove meshing.

[0010] Preferably, the preheating support is fixedly installed on the top side of the calendering table by bolts, and the preheating roller is installed in opposition to the preheating support by a rotating shaft. Both the preheating support and the fixed roller are provided with heating parts inside.

[0011] Preferably, the aforementioned hot roller drive motor is fixedly installed on the side of the preheating support by a bracket. A drive gear is fixedly installed on the shaft end of the hot roller drive motor. Transmission gears are fixedly installed on the front shaft ends of the two sets of preheating rollers on the upper side. Both sets of transmission gears are meshed with the drive gears. Synchronous pulleys are installed on the rear shaft ends of the preheating rollers. Synchronous toothed belts are installed on the upper part of the two sets of synchronous pulleys at the same height.

[0012] Preferably, the front and rear inner edges of the preheating support are provided with mounting grooves, the end of the steam jet holder is fitted into the mounting groove for support and installation, the front end of the steam jet holder is provided with a gas supply interface, the middle part of the steam jet holder is provided with a jet passage groove, and the upper and lower groove surfaces of the jet passage groove are provided with steam jet holes in a matrix shape, and the steam jet holes are connected to the gas supply interface.

[0013] Preferably, guide roller supports are provided on both the front and rear sides of the preheating roller, and the upper part of both sets of guide roller supports is supported by a rotating shaft to rotatably mount a conveying guide roller.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] This calender adopts a preheating working structure. A preheating mechanism is set at the front of the rolls, and a preheating roll is installed on the front side of the calendering platform via a preheating support. The preheating roll is driven by a hot roll drive motor. While moving and guiding the fabric, it can preheat the fabric. Combined with the secondary heating of the rear rolls, it can achieve stable heating of the fabric. The dual gradual heating can effectively reduce the heating range of the fabric, avoid fabric damage caused by overheating, and improve the quality of fabric calendering. In addition, steam spray seats are set at both the front and rear of the preheating rolls. While assisting in heating, they can also increase the moisture content of the fabric, which is beneficial to the fabric calendering process. The steam spray seats are installed and supported by the preheating support through slot fitting, which is convenient for disassembly and assembly, and improves the convenience of disassembly, assembly and maintenance of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall installation front structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall installation rear structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the front structure of the preheating mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the rear structure of the preheating mechanism of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the steam jet holder of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Blending table; 2. Fixed roll; 3. Movable roll; 4. Roll drive motor; 5. Synchronous gear; 6. Preheating support; 7. Preheating roll; 8. Hot roll drive motor; 9. Steam nozzle; 10. Drive gear; 11. Transmission gear; 12. Synchronous pulley; 13. Synchronous toothed belt; 14. Mounting groove; 15. Air supply interface; 16. Steam nozzle; 17. Conveyor guide roll; 18. Conveyor reversing roll. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] Please see Figure 1-5 This utility model provides a technical solution: a two-roll calender for fabric processing, including a calendering mechanism and a preheating mechanism. The calendering mechanism includes a calendering platform 1, a fixed roll 2, a movable roll 3, and a roll drive motor 4. The fixed roll 2 and the movable roll 3 are driven by the roll drive motor 4 and are mounted on the upper part of the support at the rear of the calendering platform 1 in an up-down opposing position. Specifically, see attached... Figure 1 As shown, to facilitate the support and installation of the fixed roll 2 and the movable roll 3, a calendering support is fixedly installed on the upper rear side of the calendering table 1. The fixed roll 2 is rotatably installed on the lower middle side of the calendering support via a rotating shaft, serving as the fixed roll support for calendering. To facilitate the floating support installation of the movable roll 3, a lifting guide groove is provided on the side of the calendering support. Floating shaft seats are slidably fitted inside the grooves of both sets of lifting guide grooves. The movable roll 3 is rotatably installed between the two sets of floating shaft seats via a rotating shaft. To achieve pressure adjustment of the movable roll 3, an adjusting bolt is bolted on the upper part of the calendering support, with the bottom end of the adjusting bolt abutting against the upper part of the floating shaft seat for support.

[0027] Roll drive motor 4 is used for the working drive of fixed roll 2 and movable roll 3, as shown in the attached figure. Figure 2 As shown, the roll drive motor 4 is fixedly mounted on the lower part of the calendering table 1 by a support. To achieve drive transmission, drive sprockets are installed at the front shaft ends of both the roll drive motor 4 and the fixed roll 2. A transmission chain is installed on the upper part of the two sets of drive sprockets. To achieve synchronous operation of the fixed roll 2 and the movable roll 3, as shown in the attached diagram... Figure 1As shown, synchronous gears 5 are installed at the rear shaft ends of both the fixed roll 2 and the movable roll 3. The two sets of synchronous gears 5 are fixedly installed at the rear shaft ends of the fixed roll 2 and the movable roll 3, respectively. The two sets of synchronous gears 5 are connected by tooth groove meshing. The tooth grooves on the upper part of the two sets of synchronous gears 5 are deep grooves to meet the floating transmission work requirements of the movable roll 3.

[0028] The preheating mechanism is used to preheat the fabric. It includes a preheating support 6, preheating rollers 7, a hot roller drive motor 8, and a steam spray nozzle 9. Multiple preheating rollers 7 are provided. For convenient support of the preheating rollers 7, see attached... Figure 1 As shown, the preheating support 6 is bolted to the top center of the calendering table 1. The preheating roller 7 is supported by a rotating shaft and installed opposite to it in the center of the preheating support 6. To achieve heating, heating elements are provided inside both the preheating support 6 and the fixed roller 2. Specifically, the heating elements can be tube-type resistance heaters as used in the prior art. The preheating roller 7 is supported by the preheating support 6 and driven by the hot roller drive motor 8, and is installed in the center of the calendering table 1. Figure 2 As shown, the hot roller drive motor 8 is fixedly mounted on the side of the preheating support 6 by a bracket. A drive gear 10 is fixedly mounted on the shaft end of the hot roller drive motor 8. Transmission gears 11 are fixedly mounted on the front shaft ends of the two sets of preheating rollers 7 on the upper side. Both sets of transmission gears 11 are meshed with the drive gears 10. In order to achieve synchronous rotation drive of the preheating rollers 7, synchronous pulleys 12 are installed on the rear shaft ends of the preheating rollers 7. Synchronous toothed belts 13 are installed on the upper part of the two sets of synchronous pulleys 12 at the same height. The heated working structure has a preheating mechanism at the front of the rollers. A preheating roller 7 is installed on the front side of the calendering table 1 via a preheating support 6. The preheating roller 7 is driven by a hot roller drive motor 8. While moving and guiding the fabric, it can preheat and raise its temperature. Combined with the secondary heating of the rear rollers, it can achieve stable heating and raising of the fabric temperature. Through dual gradual heating, the heating range of the fabric can be effectively reduced, avoiding fabric damage caused by excessive heating, which is conducive to improving the quality of fabric calendering.

[0029] The steam spray nozzle 9 is used for heating and humidifying the fabric. The steam spray nozzles 9 are installed in pairs; two sets of steam spray nozzles 9 are respectively installed on the front and rear sides of the preheating support 6 via slotted fittings. See attached diagram for details. Figure 3 As shown, to facilitate the connection and installation of the steam nozzle 9, mounting grooves 14 are provided on both the front and rear inner edges of the preheating support 6. The ends of the steam nozzle 9 are fitted into the mounting grooves 14 for support and installation. To facilitate the connection and input of steam, as shown in the attached figure... Figure 5As shown, an air supply interface 15 is provided at the front end of the steam spray holder 9. To facilitate fabric feeding, an air jet channel is provided in the middle of the steam spray holder 9. To facilitate steam ejection, steam jet holes 16 are provided in a matrix on the upper and lower groove surfaces of the air jet channel. The steam jet holes 16 are connected to the air supply interface 15. Steam spray holders 9 are provided at both the front and rear of the preheating roller 7. While assisting in heating, they can increase the moisture content of the fabric, which is beneficial for the fabric calendering process. The steam spray holder 9 is installed and supported by the preheating support 6 through the slot fitting, which is convenient for disassembly and assembly and improves the convenience of disassembly and maintenance of the device. To facilitate the fabric feeding and reversing, a conveying reversing roller 18 is installed at the front of the calendering support through a rotating shaft. To facilitate the fabric feeding and support, guide roller brackets are provided on both the front and rear sides of the preheating roller 7. A conveying guide roller 17 is installed at the upper part of both sets of guide roller brackets through a rotating shaft.

[0030] Working principle or structural principle: During operation, the fabric is fed from the front of the calendering table 1 into the conveying gap of the preheating roller 7 via the support of the conveying guide roller 17. Then, supported by the rear conveying guide roller 17 and the reversing support of the conveying reversing roller 18, it is conveyed into the rolling gap between the fixed roller 2 and the movable roller 3. The fabric entering at the preheating roller 7 passes through the central slot of the steam spray seat 9 and is heated and humidified by the steam sprayed from the steam spray hole 16 in the center of the steam spray seat 9 before being fed into the preheating roller 7. After being initially heated and heated at the preheating roller 7, it is humidified again by the rear steam spray seat 9. Then, the fabric enters between the fixed roller 2 and the movable roller 3 and is heated a second time between the fixed roller 2 and the movable roller 3. Through double progressive heating, the heating span of the fabric can be effectively reduced, avoiding fabric damage caused by excessive heating. Finally, the fabric is calendered by the pressure rolling of the movable roller 3.

[0031] In summary, this calender adopts a preheating working structure. A preheating mechanism is set at the front of the rolls, and a preheating roll 7 is supported and installed on the front side of the calendering platform 1 by a preheating support 6. The preheating roll 7 is driven by a hot roll drive motor 8. While moving and guiding the fabric, it can preheat and raise its temperature. Combined with the secondary heating of the rear rolls, it can achieve stable heating and raising of the fabric temperature. Through double gradual heating, the heating span of the fabric can be effectively reduced, avoiding fabric damage caused by overheating, which is conducive to improving the quality of fabric calendering. In addition, steam spray seats 9 are set at both the front and rear of the preheating roll 7. While assisting in heating, they can also increase the moisture content of the fabric, which is conducive to the fabric calendering process. Furthermore, the steam spray seats 9 are installed and supported by the preheating support 6 through slot fitting, which is convenient for disassembly and assembly, and improves the convenience of disassembly, assembly and maintenance of the device.

[0032] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A two-roll calender for fabric processing, comprising a calendering mechanism and a preheating mechanism, characterized in that, The calendering mechanism includes a calendering platform (1), a fixed roll (2), a movable roll (3), and a roll drive motor (4). The fixed roll (2) and the movable roll (3) are driven by the roll drive motor (4) and are mounted on the upper part of the support at the rear of the calendering platform (1) in an up-down opposite position. Synchronous gears (5) are installed at the rear shaft ends of both the fixed roll (2) and the movable roll (3). The preheating mechanism includes a preheating support (6), a preheating roller (7), a hot roller drive motor (8), and a steam spray nozzle (9). Multiple preheating rollers (7) are provided. The preheating rollers (7) are supported by the preheating support (6) and driven by the hot roller drive motor (8) and installed in the middle of the calendering table (1). The steam spray nozzles (9) are arranged in pairs. The two sets of steam spray nozzles (9) are installed on the front and rear sides of the preheating support (6) respectively by slot fitting support.

2. The two-roll calender for fabric processing according to claim 1, characterized in that, A calendering support is fixedly installed on the upper rear side of the calendering table (1). The fixed roller (2) is rotatably installed on the lower middle side of the calendering support by means of a rotating shaft. A conveying reversing roller (18) is rotatably installed on the front of the calendering support by means of a rotating shaft.

3. The two-roll calender for fabric processing according to claim 2, characterized in that, The edge of the calendering support is provided with a lifting guide groove. Floating shaft seats are slidably fitted into the inner sides of the openings of the two sets of lifting guide grooves. The movable roller (3) is rotatably installed between the two sets of floating shaft seats by a rotating shaft support. An adjusting bolt is installed on the upper part of the calendering support. The bottom end of the adjusting bolt is in contact with the upper part of the floating shaft seat for support.

4. A two-roll calender for fabric processing according to claim 3, characterized in that, The roll drive motor (4) is fixedly installed on the lower part of the calendering table (1) by a support. Both the front shaft ends of the roll drive motor (4) and the fixed roll (2) are equipped with drive sprockets. The upper part of the two sets of drive sprockets is equipped with transmission chains. The two sets of synchronous gears (5) are fixedly installed on the rear shaft ends of the fixed roll (2) and the movable roll (3), respectively. The two sets of synchronous gears (5) are connected by tooth groove meshing.

5. A two-roll calender for fabric processing according to claim 1, characterized in that, The preheating support (6) is fixedly installed on the top side of the calendering table (1) by bolts. The preheating roller (7) is installed in the middle of the preheating support (6) in a counter-position by a rotating shaft. Both the preheating support (6) and the fixed roller (2) are provided with heating parts inside.

6. A two-roll calender for fabric processing according to claim 5, characterized in that, The hot roller drive motor (8) is fixedly installed on the side of the preheating support (6) by a bracket. A drive gear (10) is fixedly installed on the shaft end of the hot roller drive motor (8). A transmission gear (11) is fixedly installed on the front shaft end of the two sets of preheating rollers (7) on the upper side. Both sets of transmission gears (11) are meshed with the drive gear (10). A synchronous pulley (12) is installed on the rear shaft end of the preheating roller (7). A synchronous toothed belt (13) is installed on the upper part of the two sets of synchronous pulleys (12) at the same height.

7. A two-roll calender for fabric processing according to claim 6, characterized in that, The preheating support (6) is provided with mounting grooves (14) on both the front and rear inner sides. The end of the steam spray seat (9) is fitted and supported by the mounting grooves (14). The front end of the steam spray seat (9) is provided with a gas supply interface (15). The middle part of the steam spray seat (9) is provided with a jet channel. The upper and lower grooves of the jet channel are provided with steam spray holes (16) in a matrix shape. The steam spray holes (16) are connected to the gas supply interface (15).

8. A two-roll calender for fabric processing according to claim 7, characterized in that, The preheating roller (7) is provided with guide roller brackets on both the front and rear sides, and the upper part of the two sets of guide roller brackets is supported by a rotating shaft to rotate and install a conveying guide roller (17).

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