Winding device for wool knitting digital printing

Abstract

The utility model relates to the technical field of digital printing, and provides a winding device for wool knitting digital printing, which comprises a winding roller, baffle plates are fixed on the outer sides of the two ends of the winding roller, a plurality of movable grooves distributed at equal angles are radially formed in the two baffle plates, and tightening clamps are hinged in the movable grooves. When fabric needs to be tightened, the motor can work to drive the inner shaft to rotate in the winding roller, the inner shaft can rotate in the winding roller under the matching of the outer threads on the outer sides of the two ends of the inner shaft and the threads of the thread bushings of the two moving parts and the sliding matching of the limiting blocks and the through grooves, and therefore the fabric can be tightened. According to the technical scheme, the sliding rings of the two moving parts can be driven to move relatively in the annular grooves, then the tightening clamps on the two blocking discs are synchronously pushed by the push rods to be folded towards the roller face of the winding roller, and therefore the woolen knitted fabric after being wound can be clamped, and the situation that the winding effect is affected due to the fact that the woolen knitted fabric is loosened when the winding roller is detached is prevented.

Description

Technical Field

[0001] This utility model relates to the field of digital printing technology, specifically to a winding device for digital printing of wool knitwear. Background Technology

[0002] Digital printing on wool knitwear is a printing method that applies digital printing technology to wool knitted fabrics. Traditional printing processes, such as screen printing, have several limitations when applied to wool knitted fabrics. For example, the pattern precision is limited, making it difficult to perfectly reproduce complex and intricate patterns. Furthermore, traditional printing often results in unnatural color transitions and misregistration when printing multiple colors. With technological advancements, digital printing technology has matured and become widely used. Digital printing effectively overcomes the shortcomings of traditional printing and demonstrates unique advantages on wool knitted fabrics.

[0003] After traditional wool knitwear printing is completed, the printed fabric is usually wound up manually, which is inconvenient and affects processing efficiency. Existing technology solves this problem by using a motor-driven winding roller with speed adjustable from the digital printing machine. For example, CN219949904U discloses a digital printing heat transfer winding device for knitted fabrics, comprising: a worktable with side plates and an equipment frame spaced apart. A motor is located on one side of the side plate, and the output end of the motor passes through the side plate and is connected to a first rotating rod. A winding roller is fixedly installed on the outer wall of the first rotating rod. The equipment frame has a discharge chute on the side near the winding roller and a feed chute on the side away from the discharge chute. The winding roller, the discharge chute, and the feed chute are parallel. This winding device achieves automatic winding of printed fabrics, replacing manual labor.

[0004] However, existing winding devices still have the following problems: when winding fabrics, the lack of restrictive devices, especially for highly elastic fabrics such as wool knitwear, makes them prone to loosening. This problem is even more prominent during the disassembly of the winding rollers after winding, which greatly affects the winding effect. Utility Model Content

[0005] This invention proposes a winding device for digital printing of wool knitwear, which solves the problem of loosening after winding in the prior art.

[0006] The technical solution of this utility model is as follows: A winding device for digital printing of wool knitwear includes a winding roller. Baffles are fixed on the outer sides of both ends of the winding roller. Several movable grooves are radially distributed at equal angles on both baffles, and a tightening clamp is hinged in each movable groove. A motor is fixed on the inner side of one end of the winding roller. An inner shaft that is rotatably connected to the winding roller is fixed at the output end of the motor. Symmetrically distributed moving parts are threaded on the outer sides of both ends of the inner shaft, and push rods for pushing and pulling each tightening clamp to loosen the fabric are hinged on both moving parts.

[0007] Preferably, each end of the inner shaft is provided with an external thread, and the two external threads have opposite helical directions.

[0008] Preferably, the take-up roller has an annular groove at the location of the external thread, and the annular groove has cross-shaped through slots.

[0009] Preferably, the movable component includes a threaded sleeve and a slip ring located outside the threaded sleeve. The slip ring is slidably disposed in an annular groove, and the threaded sleeve is slidably disposed in a take-up roller. The inner shaft passes through the threaded sleeve, and the threaded sleeve is threadedly connected to the external thread outside the inner shaft. A limiting block that limits the sliding position in the through groove is fixed between the threaded sleeve and the slip ring.

[0010] Preferably, the tightening clamp includes an integrally formed first bending portion, a second bending portion, and a third bending portion, wherein the first bending portion and the second bending portion are distributed at an acute angle, and the second bending portion and the third bending portion are distributed at an obtuse angle.

[0011] Preferably, the slip ring has a second slot corresponding to the tightening clamp, the first bent portion has a first slot, and the two ends of the push rod are respectively hinged to the second slot and the first slot.

[0012] Preferably, the third bending portion has strip grooves distributed on the side facing the winding roller surface.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. In the winding state of the take-up roller in this utility model, the moving parts at both ends are located at the end of the take-up roller. At this time, the tightening clamps on the two baffles are open, thereby avoiding the impact on the winding of wool knitted fabric. Furthermore, the baffles on the outer sides of both ends of the take-up roller can prevent the fabric from deviating during winding, thereby improving the neatness of winding.

[0015] 2. When the fabric needs to be tightened, this utility model can use a motor to drive the inner shaft to rotate inside the take-up roller. With the external threads on both ends of the inner shaft engaging with the threaded sleeves of the two moving parts, and with the sliding engagement of the limiting block and the through groove, the sliding rings of the two moving parts can be driven to move relative to each other in the annular groove. Then, each push rod synchronously pushes the tightening clamps on the two baffles to close towards the roller surface of the take-up roller, thereby clamping the wound wool knitted fabric to prevent it from loosening and affecting the winding effect when the take-up roller is disassembled. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of a winding device for digital printing of wool knitwear proposed in this utility model;

[0018] Figure 2 This is a half-sectional structural diagram of a winding device for digital printing of wool knitwear proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the half-section structure of the take-up roller proposed in this utility model;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the moving part structure proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the clamping structure proposed in this utility model;

[0023] In the diagram: 1. Take-up roller; 11. Annular groove; 12. Through groove; 2. Baffle plate; 21. Movable groove; 3. Tightening clamp; 31. First bend; 32. Second bend; 33. Third bend; 34. First slot; 35. Strip groove; 4. Motor; 5. Inner shaft; 51. External thread; 6. Moving part; 61. Threaded sleeve; 62. Slip ring; 63. Limiting block; 64. Second slot; 7. Push rod. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a take-up device for digital printing of wool knitwear, including a take-up roller 1, with baffles 2 fixed on the outer sides of both ends of the take-up roller 1. Each baffle 2 has a plurality of equally distributed movable grooves 21 radially opened, and each movable groove 21 is hinged with a tightening clamp 3. A motor 4 is fixed on the inner side of one end of the take-up roller 1. The output end of the motor 4 is fixed with an inner shaft 5 that is rotatably connected to the take-up roller 1. The outer sides of both ends of the inner shaft 5 are threaded with symmetrically distributed moving parts 6, and each of the two moving parts 6 is hinged with a push rod 7 for pushing and pulling each tightening clamp 3 to loosen the fabric.

[0026] Please see Figure 3 and Figure 4 The inner shaft 5 has an external thread 51 on each of its two outer ends, and the two external threads 51 have opposite helical directions. The winding roller 1 has an annular groove 11 at the location of the external thread 51, and the annular groove 11 has cross-shaped through grooves 12. Figure 5 As shown, the movable component 6 includes a threaded sleeve 61 and a slip ring 62 located outside the threaded sleeve 61. The slip ring 62 is slidably disposed in the annular groove 11, and the threaded sleeve 61 is slidably disposed in the take-up roller 1. The inner shaft 5 passes through the threaded sleeve 61, and the threaded sleeve 61 is threadedly connected to the external thread 51 outside the inner shaft 5. A limiting block 63 is fixed between the threaded sleeve 61 and the slip ring 62, which is slidably limited in the through groove 12. When it is necessary to tighten the wool knitted fabric, the motor 4 can be used to drive the inner shaft 5 to rotate in the take-up roller 1. Under the threaded engagement of the external threads 51 on both sides of the inner shaft 5 with the threaded sleeves 61 of the two movable components 6, and simultaneously under the sliding engagement of the limiting block 63 with the through groove 12, the slip rings 62 of the two movable components 6 can be driven to move relative to each other in the annular groove 11.

[0027] Please see Figure 6 The tightening clamp 3 includes an integrally formed first bent portion 31, second bent portion 32, and third bent portion 33. The first bent portion 31 and the second bent portion 32 are distributed at an acute angle, and the second bent portion 32 and the third bent portion 33 are distributed at an obtuse angle. The slip ring 62 has a second slot 64 corresponding to the tightening clamp 3. The first bent portion 31 has a first slot 34. The two ends of the push rod 7 are respectively hinged in the second slot 64 and the first slot 34. When the slip ring 62 of the two moving parts 6 moves relative to each other in the annular groove 11, the push rod 7 can simultaneously push the tightening clamp 3 on the two baffles 2 to close towards the roller surface of the take-up roller 1, thereby clamping the wound wool knitted fabric to prevent it from loosening when the take-up roller 1 is disassembled and affecting the winding effect.

[0028] Furthermore, the third bend 33 has strip grooves 35 distributed on the side facing the take-up roller 1 to increase the friction with the fabric and prevent loosening when the fabric is tightened.

[0029] The working principle and usage process of this utility model are as follows: When the take-up roller 1 is in the take-up state, the moving parts 6 at both ends are at the end of the take-up roller 1. At this time, the tightening clamps 3 on the two baffles 2 are in the open state, thereby avoiding the impact on the take-up of the wool knitted fabric. The baffles 2 on the outer sides of both ends of the take-up roller 1 can prevent the fabric from deviating during take-up, thereby improving the neatness of take-up. After the wool knitted fabric is taken up, the motor 4 can work to drive the inner shaft 5 to rotate inside the take-up roller 1. The outer threads 51 on both ends of the inner shaft 5 are threadedly engaged with the threaded sleeves 61 of the two moving parts 6. At the same time, the sliding engagement of the limiting block 63 and the through groove 12 can drive the slip rings 62 of the two moving parts 6 to move relative to each other in the annular groove 11. Then, each push rod 7 synchronously pushes the tightening clamps 3 on the two baffles 2 to close towards the roller surface of the take-up roller 1, thereby clamping the taken-up wool knitted fabric to prevent it from loosening when the take-up roller 1 is disassembled, which would affect the take-up effect.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A take-up device for digital printing of wool knitwear, comprising a take-up roller (1), characterized in that, The take-up roller (1) has baffles (2) fixed on the outer sides of both ends. Each of the two baffles (2) has several movable grooves (21) arranged radially at equal angles. Each movable groove (21) is hinged with a tightening clamp (3). A motor (4) is fixed on the inner side of one end of the take-up roller (1). The output end of the motor (4) is fixed with an inner shaft (5) that is rotatably connected to the take-up roller (1). The two ends of the inner shaft (5) are threaded with symmetrically distributed moving parts (6). Each of the two moving parts (6) is hinged with a push rod (7) for pushing and pulling each tightening clamp (3) to loosen the fabric.

2. The winding device for digital printing of wool knitwear according to claim 1, characterized in that, The inner shaft (5) has an external thread (51) on each of its two outer ends, and the two external threads (51) have opposite helical directions.

3. The winding device for digital printing of wool knitwear according to claim 2, characterized in that, The take-up roller (1) has an annular groove (11) at the location of the external thread (51), and a cross-shaped through groove (12) is provided in the annular groove (11).

4. The winding device for digital printing of wool knitwear according to claim 3, characterized in that, The movable part (6) includes a threaded sleeve (61) and a slip ring (62) located outside the threaded sleeve (61). The slip ring (62) is slidably disposed in the annular groove (11). The threaded sleeve (61) is slidably disposed in the take-up roller (1). The inner shaft (5) passes through the threaded sleeve (61). The threaded sleeve (61) is threadedly connected to the external thread (51) outside the inner shaft (5). A limiting block (63) that limits the sliding position in the through groove (12) is fixed between the threaded sleeve (61) and the slip ring (62).

5. A winding device for digital printing of wool knitwear according to claim 4, characterized in that, The tightening clamp (3) includes an integrally formed first bending part (31), a second bending part (32), and a third bending part (33). The first bending part (31) and the second bending part (32) are distributed at an acute angle, and the second bending part (32) and the third bending part (33) are distributed at an obtuse angle.

6. A winding device for digital printing of wool knitwear according to claim 5, characterized in that, The slip ring (62) has a second slot (64) corresponding to the tightening clamp (3), and the first bend (31) has a first slot (34). The two ends of the push rod (7) are respectively hinged in the second slot (64) and the first slot (34).

7. A winding device for digital printing of wool knitwear according to claim 5, characterized in that, The third bending section (33) has strip grooves (35) distributed on the side facing the roller surface of the take-up roller (1).

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