Cloth storage device for textile digital printing

Abstract

The utility model relates to the technical field of printing and dyeing, and aims to solve the problems that in the process of processing cloth in an online continuous color development mode, a printing unit suddenly becomes abnormal, a printer is shut down, the retention time of the cloth entering a color development unit is uncontrollable, the color is abnormal, and large loss is brought to printing processing. The cloth storage device for textile digital printing comprises a cloth storage rack, the cloth storage rack is provided with an upper plane, a traction chain is installed on the upper plane of the cloth storage rack, the traction chain surrounds the cloth storage rack to form a ring, and the cloth storage rack is provided with a plurality of turning gears used for being matched with the traction chain to turn. A driving motor used for driving the traction chain is installed on the cloth storage rack, a cloth inlet guide wheel and a cloth outlet guide wheel are arranged at the two ends of the cloth storage rack in the cloth conveying direction respectively, and a plurality of cloth guide rollers are fixedly installed on the traction chain and arranged in parallel at intervals. Through the arrangement, the loss of printing processing is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and dyeing, in particular to a cloth storage device for digital printing of textiles. Background Art

[0002] Digital printing technology is a processing method that can effectively improve printing efficiency. Because it does not require color separation and plate making, nor is it restricted by the number of colors and the size of the pattern cycle, it has developed greatly in recent years and has even replaced traditional screen printing in some sub - printing fields.

[0003] At present, in digital disperse printing, piezoelectric nozzles are mainly used, and their nozzles are relatively small. To ensure that the ink in the ink path does not cause nozzle clogging due to rapid drying of the ink during the printing process and when the machine stops, a large amount of humectant is usually added to the ink. The humectant is generally an alcohol substance with high hygroscopicity, which will cause a large amount of humectant to remain on the fabric surface and may cause staining problems in subsequent processing. To solve the staining problem caused by humectant residue, common solutions include: First, reducing the amount of humectant used or using a low - boiling - point humectant to minimize humectant residue during the drying process and prevent the dried fabric from absorbing moisture again; Second, using backing paper to roll the fabric after printing and drying to prevent staining during storage and transfer; Third, reducing the air volume or lowering the loop height during the color development process to reduce the risk of scratching; Fourth, adopting an online continuous color development method to directly develop the printed fabric to solve the problem of fabric staining caused by the absorption of moisture by the humectant on the fabric surface.

[0004] However, the first three methods cannot solve the staining problem well. The main reasons are as follows: First, due to the structural limitations of the nozzle, the humectant in the ink cannot be significantly reduced, otherwise it will affect the state of the printing nozzle, resulting in risks such as nozzle clogging and ink breakage; Second, the low - boiling - point humectant has poor moisturizing effect and cannot effectively solve the problem of ink drying too fast in the nozzle, resulting in clogging; Third, adding backing paper to roll the fabric after printing and drying, the backing paper can only be used once, which will increase costs and reduce efficiency; Fourth, reducing the air volume and loop height during the color development process will reduce the processing efficiency. Therefore, people mostly adopt the online continuous color development method to solve the problem of fabric staining. However, during the printing process, sometimes the printing unit suddenly malfunctions and the printing unit stops. When the printing unit stops, the residence time of the fabric that has entered the color development unit is uncontrollable, resulting in color abnormalities and causing great losses to the printing process. Content of the Utility Model

[0005] In the process of processing fabrics by means of online continuous coloring, sudden abnormalities occur in the printing unit, causing the printer to stop, resulting in uncontrollable residence time of the fabrics that have entered the coloring unit, thus leading to color abnormalities and excessive losses in printing processing. The utility model provides a fabric storage device for digital printing of textiles, which is conducive to reducing the losses in printing processing and improving the production efficiency of digital printing.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A fabric storage device for digital printing of textiles includes a fabric storage frame. The fabric storage frame is provided with an upper plane. A traction chain is installed on the upper plane of the fabric storage frame, and the traction chain forms a loop around the fabric storage frame. The fabric storage frame is installed with a number of deflector gears for cooperating with the traction chain to change direction. The fabric storage frame is installed with a drive motor for driving the traction chain to move along the fabric transmission direction. At both ends of the fabric storage frame along the fabric transmission direction, a fabric inlet guide roller and a fabric outlet guide roller are respectively provided. A number of fabric guide rollers for driving the fabric to move forward are fixedly installed on the traction chain, and the fabric guide rollers are arranged in parallel at intervals.

[0008] The storage device is installed on the fabric transmission line of the digital printing equipment, between the printing unit and the coloring unit. The digital printing is single-sided printing, and the fabric inlet guide roller contacts the non-printed surface of the printed fabric. The fabric after digital printing enters the fabric guide rollers of the storage device from the fabric inlet guide roller. Since the traction chain drives the fabric guide rollers to move forward in the fabric transmission direction, the fabric guide rollers drive the fabric after digital printing to move forward in the transmission direction. At this time, the fabric between adjacent fabric guide rollers droops into a loop under the action of gravity, so that the fabric after digital printing is stored in the fabric storage frame. Finally, the fabric after digital printing moves from the fabric outlet guide roller to the next process. By adopting the above technical solutions, when the printing unit suddenly stops due to an abnormality, the fabric in the printing unit can be cut off in time, and the storage device can continue to provide fabric for the subsequent process, reducing the uncontrollable residence time of the fabric that has entered the coloring unit due to the stop of the printing unit, thus avoiding the situation where the fabric color becomes abnormal, which is conducive to reducing the losses in printing processing. At the same time, by using the storage device, the interruption of fabric transmission caused by the stop of the printing unit can be avoided, ensuring the continuous transmission of the fabric and improving the production efficiency. In addition, the setting of the fabric guide rollers and the traction chain can stably drive the fabric after digital printing to move forward along the fabric transmission direction, reducing the situation of uneven tightness or uneven force of the fabric during transmission.

[0009] Preferably, the cloth storage rack is a rectangular frame. A number of the direction-changing gears are respectively installed at the turning positions of the traction chain, and the direction-changing gears are meshed with the traction chain. The driving motor cooperates with one of the direction-changing gears to drive the traction chain to move in a loop along the cloth transmission direction.

[0010] With the above technical solution, through the above settings, the cloth can be smoothly transmitted in the cloth storage device, improving the stability and efficiency of the transmission.

[0011] Preferably, a bottom support guide belt for supporting the cloth is further provided inside the cloth storage rack. The bottom support guide belt is located at the bottom inside the loop formed by the traction chain, and the bottom support guide belt is used to support the bottom end of the looped cloth between adjacent cloth guide rollers.

[0012] With the above technical solution, the bottom support guide belt can support the bottom end of the looped cloth, keeping a certain distance between the bottom of the cloth and the bottom of the cloth storage rack, effectively reducing the situation that the bottom of the cloth is contaminated by contact with the rack, and ensuring the printing quality. At the same time, when the bottom end of the looped cloth between adjacent cloth guide rollers contacts the bottom support guide belt, due to the certain speed of the bottom support guide belt, the bottom end of the looped cloth can be laid flat on the bottom support guide belt, reducing the aggregation of the bottom end of the looped cloth, thereby reducing the possibility of the cloth being contaminated with each other.

[0013] Preferably, the traveling speed of the bottom support guide belt is the same as that of the traction chain.

[0014] With the above technical solution, setting the traveling speed of the bottom support guide belt to be the same as that of the traction chain enables the looped cloth to maintain a vertically downward state during transmission, reducing the situation that adjacent looped cloths are contaminated with each other due to the inclination of the looped cloth. At the same time, it can ensure the stability of the looped cloth during transmission, reducing the jitter or misalignment of the cloth.

[0015] Preferably, the height of the looped cloth between adjacent cloth guide rollers is not greater than the vertical distance from the cloth guide roller to the bottom support guide belt.

[0016] With the above technical solution, by ensuring that the height of the looped cloth between adjacent cloth guide rollers does not exceed the vertical distance of the bottom support guide belt, the situation of color staining caused by the cloth rubbing against each other can be effectively reduced.

[0017] Preferably, the number of the cloth guide rollers is 10 - 200; more preferably, the number of the cloth guide rollers is 80 - 120.

[0018] With the above technical solution, by limiting the number of the cloth guide rollers to 10 - 200, it can ensure that the cloth is fully supported and guided during transmission, thereby improving the stability of the transmission, reducing cloth misalignment and pulling, and being beneficial to ensuring the printing quality.

[0019] By limiting the number of fabric guiding rollers to 80 - 120, the minimum number of fabric guiding rollers is increased, further increasing the density of the fabric guiding rollers, providing more support and guidance for the fabric, more effectively reducing the unstable factors during the fabric transmission process, ensuring the stable transmission of the fabric, and thus improving the printing quality. At the same time, while ensuring that the fabric can be well supported and guided, the maximum number of fabric guiding rollers is reduced, which is beneficial to reducing the manufacturing cost of the equipment and improving the economic benefits.

[0020] Preferably, the distance between adjacent fabric guiding rollers is 10 - 100 cm; preferably, the distance between adjacent fabric guiding rollers is 20 - 60 cm.

[0021] Adopting the above technical solution, by limiting the distance between adjacent fabric guiding rollers to 10 - 100 cm, it can ensure that the fabric transmission line between the fabric guiding rollers is relatively stable, reduce the excessive gaps or misalignments of the fabric during the transmission process, and is beneficial to maintaining the integrity and accuracy of the printed pattern.

[0022] Further limiting the minimum distance between the fabric guiding rollers further reduces the possible gaps or misalignments during the fabric transmission process, ensuring the continuity and accuracy of the printed pattern. At the same time, further limiting the maximum distance between the fabric guiding rollers is more beneficial to reducing the situation of color staining caused by the fabric rubbing against each other.

[0023] Preferably, the traveling speed of the traction chain is consistent with the speed required for subsequent processing.

[0024] Adopting the above technical solution, by limiting the traveling speed of the traction chain to be consistent with the speed required for subsequent processing, it can ensure that the fabric maintains a stable speed and tension during the transmission process, reducing the situations of fabric misalignment, excessive pulling or generation of gaps. At the same time, it can ensure the accuracy and integrity of the printed pattern, improve the printing quality and production efficiency. In addition, the traveling speed of the traction chain being consistent with the speed required for subsequent processing also helps to reduce the failure rate during the operation of the equipment, improving the stability and reliability of production.

[0025] Preferably, the surfaces of the fabric inlet guiding wheel, the fabric outlet guiding wheel and the fabric guiding rollers have a certain roughness, which is achieved by covering with one or more of foamed rubber, brush, and textiles with rough surfaces.

[0026] Adopting the above technical solution, by covering the surfaces of the fabric inlet guiding wheel, the fabric outlet guiding wheel and the fabric guiding rollers with materials such as foamed rubber, brush or textiles with rough surfaces, a certain roughness is achieved. Such a design can provide better friction and grasping force, helping to stably guide the fabric to be transmitted in the fabric storage device, reducing the situation of fabric sliding or slipping, and thus improving the accuracy and stability of the transmission.

[0027] Preferably, the bottom support guiding belt is one of a rubber guiding belt, a mesh belt, and a wide-width woven belt.

[0028] By adopting the above technical solution and through the above settings, the stability of fabric transmission is improved.

[0029] In summary, the utility model has the following beneficial effects:

[0030] 1. When the printing unit suddenly stops abnormally, the fabric storage device can timely cut off the fabric in the printing unit, and at the same time continue to supply fabric for the subsequent processes, reducing the situation of abnormal color caused by the uncontrollable residence time of the fabric that has entered the coloring unit, thereby reducing the loss of printing processing. Moreover, when the printing unit has an abnormality, it does not affect the subsequent processes.

[0031] 2. Through the setting of the fabric storage device, the continuous transmission of the fabric is ensured, reducing the situation of fabric quality problems caused by the interruption of fabric transmission due to the stop of the printing unit, which is beneficial to continuous production, improves production efficiency, and at the same time can effectively solve the risk of color staining existing in the fabric after printing and winding or storing in opposition.

[0032] 3. Through the setting of the bottom support guiding belt, the traveling speed of the bottom support guiding belt, and the forming ring height, the possibility of fabric mutual contamination is reduced, ensuring the printing quality.

[0033] 4. Preferably, the distance and quantity of adjacent fabric guiding rollers are set, and the traveling speed of the traction chain is limited to be consistent with the speed required by subsequent processing, which can reduce the gap or misalignment situation during fabric transmission, ensure the continuity and accuracy of the printed pattern, and at the same time is beneficial to reducing the manufacturing cost of the equipment and improving economic benefits. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 It is a schematic diagram of the overall structure of a fabric storage device for digital printing of textiles according to an embodiment of the present utility model.

[0036] Reference numerals in the drawings: 1. Fabric storage frame; 2. Inlet fabric guiding wheel; 3. Outlet fabric guiding wheel; 4. Traction chain; 5. Fabric guiding roller; 6. Driving motor; 7. Bottom support guiding belt; 8. Direction-changing gear; 9. Movement motor. Detailed Embodiments

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0038] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] A cloth storage device for digital printing of textiles, see Figure 1 , including a cloth storage frame 1. The cloth storage frame 1 is provided with an upper plane and is a rectangular frame. A traction chain 4 is installed on the upper plane of the cloth storage frame 1, and the traction chain 4 forms a loop around the cloth storage frame 1. The traction chain 4 surrounds the outer periphery of the cloth storage frame 1 and forms a rectangular loop. A plurality of deflector gears 8 for cooperating with the traction chain 4 to turn are installed inside the cloth storage frame 1. A drive motor 6 for driving the traction chain 4 to move in a loop along the cloth transmission direction is installed on the cloth storage frame 1. At both ends of the top of the cloth storage frame 1 along the cloth transmission direction, a cloth inlet guide roller 2 and a cloth outlet guide roller 3 are respectively installed. Both the cloth inlet guide roller 2 and the cloth outlet guide roller 3 are used in cooperation with the cloth storage frame 1. A plurality of guide rollers 5 for driving the cloth to move forward are fixedly installed on the traction chain 4, and the plurality of guide rollers 5 are arranged in parallel at intervals.

[0041] Specifically, there are two traction chains, which are arranged in parallel. There are eight reversing gears 8, and the eight reversing gears 8 are respectively installed at the turning points of the two traction chains 4, and the reversing gears 8 are all meshed with the traction chains 4. The driving motor 6 is engaged with one of the reversing gears to drive the traction chains to move in a loop along the fabric transmission direction. In this embodiment, the driving motor 6 is installed at the bottom of the fabric storage rack 1 near the fabric outlet guiding roller 3, and the output shaft of the driving motor 6 is fixedly connected to the shaft hole of one of the reversing gears 8 located at the bottom of the fabric storage rack 1 near the fabric outlet guiding roller 3. The driving motor 6 drives the reversing gear 8 to rotate, thereby driving the traction chain 4 and the fabric guiding roller 5 to move in a loop along the fabric transmission direction.

[0042] The printed fabric enters the fabric storage device from the fabric inlet guiding roller 3. The driving motor 6 drives the traction chain 4 and the fabric guiding roller 5 to move forward along the fabric conveying direction, and the fabric guiding roller 5 drives the printed fabric to move forward along the fabric conveying direction. At this time, the fabric between adjacent fabric guiding rollers 5 droops into a loop due to the action of gravity, so as to store the printed fabric in the fabric storage rack 1.

[0043] The surfaces of the fabric inlet guiding roller 2, the fabric outlet guiding roller 3 and the fabric guiding roller 5 all have a certain roughness, which is realized by covering with one or more of foamed rubber, brush, and rough-surfaced textiles on the surface. In this embodiment, the surfaces of the fabric inlet guiding roller 2, the fabric outlet guiding roller 3 and the fabric guiding roller 5 are all covered by foamed rubber. In some embodiments, the surfaces of the fabric inlet guiding roller 2, the fabric outlet guiding roller 3 and the fabric guiding roller 5 can be realized by covering with one or more of foamed rubber, brush, and rough-surfaced textiles.

[0044] In this embodiment, the number of the fabric guiding rollers 5 is 10 - 200, and preferably, the number of the fabric guiding rollers 5 is 80 - 120. By limiting the number of the fabric guiding rollers 5 to 80 - 120, the minimum number of the fabric guiding rollers 5 is increased, and the density of the fabric guiding rollers 5 is further increased, providing more support and guidance for the fabric, more effectively reducing the unstable factors in the fabric transmission process, ensuring the stable transmission of the fabric, and thus improving the printing quality. At the same time, while ensuring that the fabric can be well supported and guided, the maximum number of the fabric guiding rollers 5 is reduced, which is beneficial to reducing the manufacturing cost of the equipment and improving the economic benefits.

[0045] The distance between adjacent fabric guiding rollers 5 is 10 - 100 cm, and preferably, the distance between adjacent fabric guiding rollers 5 is 20 - 60 cm. By limiting the distance between adjacent fabric guiding rollers 5, it can be ensured that the fabric transmission between adjacent fabric guiding rollers 5 is relatively stable, reducing the excessive gaps or misalignments of the fabric during the transmission process, which is beneficial to maintaining the integrity and accuracy of the printed pattern.

[0046] See Figure 1, a bottom support guiding belt 7 for supporting the fabric is installed inside the fabric storage rack 1. The bottom support guiding belt 7 is located at the bottom inside the annular ring formed by the traction chain 4. The bottom support guiding belt 7 is used to support the bottom end of the looped fabric between adjacent fabric guiding rollers 5. A motion motor 9 for driving the movement of the bottom support guiding belt 7 is also installed inside the fabric storage rack 1. The bottom support guiding belt 7 is one of a rubber guiding belt, a mesh belt, and a wide-width woven belt. In this embodiment, the bottom support guiding belt 7 is a rubber guiding belt. In some embodiments, the bottom support guiding belt 7 is one of a mesh belt and a wide-width woven belt. The height of the looped fabric between adjacent fabric guiding rollers 5 is not greater than the vertical distance from the fabric guiding roller 5 to the bottom support guiding belt 7. The traveling speed of the bottom support guiding belt 7 is consistent with the traveling speed of the traction chain 4, and the traveling speed of the traction chain 4 is consistent with the speed required for subsequent processing. By optimizing the spacing and quantity of adjacent fabric guiding rollers 5 and adjusting the speeds of the traction chain 4, the bottom support guiding belt 7, and subsequent processing, the gaps or misalignments during the fabric transmission process can be effectively reduced, ensuring the continuity and accuracy of the printing pattern.

[0047] The implementation principle of this embodiment is as follows:

[0048] The fabric is printed on a digital printer. After the fabric printing is completed, it enters the fabric storage device through the fabric inlet guiding wheel 2. The fabric inlet guiding wheel 2 drives the printed fabric to travel along the fabric conveying direction, so that the printed fabric enters the fabric guiding roller 5 of the fabric storage device. Then, the printed fabric travels along the fabric conveying direction driven by the fabric guiding roller 5, and the fabric droops into a loop under the action of gravity. After the printed fabric droops, the subsequent fabric guiding roller 5 receives the new fabric and pulls the fabric to travel. Finally, the fabric travels to the end of the fabric storage device and is pulled away from the fabric storage device through the fabric outlet guiding wheel 3 to enter the subsequent process, completing the fabric storage process.

[0049] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fabric storage device for digital printing of textiles, comprising a fabric storage rack (1), characterized in that: The cloth storage rack (1) is provided with an upper plane. A traction chain (4) is installed on the upper plane of the cloth storage rack (1), and the traction chain (4) forms a loop around the cloth storage rack (1). The cloth storage rack (1) is installed with a number of deflector gears (8) for cooperating with the traction chain (4) to change direction. The cloth storage rack (1) is installed with a drive motor (6) for driving the traction chain (4) to move along the cloth transmission direction. At both ends of the cloth storage rack (1) along the cloth transmission direction, there are respectively a cloth inlet guide roller (2) and a cloth outlet guide roller (3). A number of cloth guide rollers (5) for driving the cloth to move forward are fixedly installed on the traction chain (4), and a number of the cloth guide rollers (5) are arranged in parallel at intervals.

2. The cloth storage device for digital printing of textiles according to claim 1, characterized in that: The cloth storage rack (1) is a rectangular frame. A number of the deflector gears (8) are respectively installed at the turning positions of the traction chain (4), and the deflector gears (8) are meshed with the traction chain (4). The drive motor (6) cooperates with one of the deflector gears (8) to drive the traction chain (4) to move in a loop along the cloth transmission direction.

3. The cloth storage device for digital printing of textiles according to claim 1, characterized in that: A bottom support guide belt (7) for supporting the cloth is further arranged inside the cloth storage rack (1). The bottom support guide belt (7) is located at the bottom inside the loop formed by the traction chain (4), and the bottom support guide belt (7) is used for supporting the bottom end of the looped cloth between adjacent cloth guide rollers (5).

4. The cloth storage device for digital printing of textiles according to claim 3, characterized in that: The traveling speed of the bottom support guide belt (7) is the same as that of the traction chain (4).

5. The cloth storage device for digital printing of textiles according to claim 3, characterized in that: The height of the looped cloth between adjacent cloth guide rollers (5) is not greater than the vertical distance from the cloth guide roller (5) to the bottom support guide belt (7).

6. The fabric storage device for digital printing of textiles according to claim 1, wherein: The number of the cloth guide rollers (5) is 10 - 200.

7. The cloth storage device for digital printing of textiles according to claim 1, characterized in that: The spacing between adjacent cloth guide rollers (5) is 10 - 100 cm.

8. The cloth storage device for digital printing of textiles according to claim 1, characterized in that: The traveling speed of the traction chain (4) is the same as the speed required for subsequent processing.

9. The fabric storage device for digital printing of textiles according to claim 1, characterized in that: The surfaces of the cloth inlet guide roller (2), the cloth outlet guide roller (3) and the cloth guide roller (5) have a certain roughness, which is achieved by covering with one or more of foamed rubber, brush, and rough-surfaced textiles on the surface.

10. A cloth storage device for digital printing of textiles according to claim 3, characterized in that: The bottom support guide belt (7) is one of a rubber guide belt, a mesh belt, and a wide-width woven belt.

11. The cloth storage device for digital printing of textiles according to claim 1, characterized in that: The number of the cloth guide rollers (5) is 80 - 120.

12. A cloth storage device for digital printing of textiles according to claim 1, characterized in that: The spacing between adjacent cloth guide rollers (5) is 20 - 60 cm.

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