Anti-wrinkle advertising spray drawing coiled material winding and unwinding regulation device

Abstract

The present application belongs to the field of advertisement spray drawing processing equipment, and discloses a wrinkle-proof advertisement spray drawing coiled material winding and unwinding regulating device, which comprises a bottom support, a vertical support, an output assembly, a transmission assembly, a detachable shaft seat, a self-adaptive coiled material roller clamping device, a coiled material roller and a dust cover. The self-adaptive coiled material roller clamping device comprises a fixed shaft, an internally-threaded telescopic rod and three evenly-distributed pressing plates, and the rotation of the telescopic rod can synchronously control the radial winding and unwinding of the pressing plates. The output assembly drives the coiled material roller to rotate through a motor, a speed reducer, a gear and a chain drive transmission shaft. The three pressing plates radially support the coiled material roller, realize automatic coaxial centering, make the winding tension uniform, and avoid coiled material wrinkles; one-sided handle can complete clamping, and the device is suitable for coiled material rollers with various inner diameters; the split and spliced dust cover wraps the transmission components and isolates dust abrasion. The present application has simple structure and convenient operation, effectively solves the problems of traditional two-point support eccentricity, coiled material wrinkles, poor adaptability and transmission dust accumulation damage, and improves the quality and production efficiency of spray drawing products.

Description

Technical Field

[0001] This invention belongs to the technical field of advertising inkjet printing processing equipment, and particularly relates to an anti-wrinkle advertising inkjet printing roll rewinding and unwinding control device. Background Technology

[0002] In the advertising printing industry, various types of roll-to-roll printing materials, such as lightbox fabric, vehicle wraps, and canvas, all require corresponding unwinding and rewinding equipment to complete the feeding, unwinding, and finished product winding operations. The uniformity of tension during the unwinding and rewinding process directly determines the appearance quality of the finished printed product. Currently, most conventional roll-to-roll printing equipment on the market uses a two-point clamping structure to fix the roll roller, relying solely on a single support point on both sides to support the roll roller. This has many shortcomings in actual production: 1. Poor centering accuracy of the roll material roller, prone to eccentricity and wobbling. The two-point support structure cannot achieve coaxial automatic positioning of the roll material roller, resulting in skewed force on the roll material roller. During winding, the tension on the left and right sides of the roll material is inconsistent, and uneven force on the edge of the roll material easily leads to defects such as stretching, wrinkles, bulging, and misalignment, which greatly reduces the pass rate of the printed product. The wrinkling problem is particularly prominent for flexible roll materials such as thick light box cloth and soft vehicle wrap.

[0003] 2. Narrow compatibility range of roll rolls. Traditional end-tightening structures can only be used with roll rolls of a single inner diameter. When changing to different sizes of roll rolls, it is necessary to change the matching top head accessories. The disassembly and adjustment steps are cumbersome, resulting in low production efficiency and making it unsuitable for batch processing of multi-specification roll rolls.

[0004] 3. Transmission components are prone to dust accumulation and wear. The motor, gears, and chain drive structure of conventional winding equipment are completely exposed to the workshop environment. During the inkjet printing process, ink dust and fabric debris are generated. The dust continuously adheres to the transmission meshing parts, which will cause gear jamming, chain corrosion, and increased motor load over a long period of time, resulting in high equipment failure rate and high maintenance costs.

[0005] 4. The operation of clamping the roll material is labor-intensive. The existing clamping structure relies on manual tightening and adjustment at both ends. The adjustment stroke at both ends is difficult to synchronize. Excessive clamping force on one side can easily cause deformation of the roll material roller. In addition, it is inconvenient for a single person to operate and the loading and unloading of materials takes a long time.

[0006] Existing technologies lack roll-to-roll control devices that can adapt to rolls of different inner diameters, provide three-point synchronous centering and clamping, ensure uniform winding tension, and offer dust protection. This makes it difficult to address industry pain points such as roll-to-roll wrinkles, equipment damage from dust accumulation, and poor roll-to-roll roller compatibility. Therefore, designing an anti-wrinkle advertising roll-to-roll control device that features automatic centering and clamping, balanced tension, dustproof durability, and compatibility with multiple roll-to-roll roller specifications is a practical need in current advertising printing processing and production. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, the present invention provides an anti-wrinkle advertising inkjet printing roll winding and unwinding control device, which solves the technical problems of existing roll winding and unwinding equipment, such as the two-point support structure being prone to eccentric swaying, uneven roll winding tension causing wrinkles, limited roll roller compatibility specifications, cumbersome replacement of parts, exposed transmission components being prone to dust accumulation and wear, high failure rate, and the laborious adjustment and clamping at both ends of the roll, making it impossible for a single person to quickly complete the loading and unloading.

[0008] The technical solution adopted in this invention is as follows: A wrinkle-resistant advertising inkjet printing roll rewinding and unwinding control device includes a bottom support, a vertical frame on the bottom support, an output component located on one side of the vertical frame on the bottom support, a transmission component at the top of the vertical frame near the output component, a detachable shaft seat rotatably connected to the transmission component on the vertical frame, an adaptive roll clamping device at the end of the transmission component away from the output component, a roll roller sleeved on the adaptive roll clamping device, and dust covers on the transmission component and the output component. The adaptive roll clamping device includes a fixed shaft fixedly connected to the output end of the transmission component, an internally threaded telescopic rod threadedly connected to the fixed shaft, and three evenly distributed pressure plates outside the internally threaded telescopic rod. When the internally threaded telescopic rod rotates relative to the fixed shaft, the three pressure plates rewind and unwind.

[0009] As a preferred technical solution of this invention, the adaptive roll clamping device further includes a mounting plate body fixedly connected to the fixed shaft. The mounting plate body is provided with three radially distributed strip grooves, and one end of the pressure plate is slidably connected to the strip grooves.

[0010] As a preferred technical solution of this invention, the internal threaded telescopic rod is provided with three evenly distributed first connecting plates, and the bottom of the pressure plate is provided with a second connecting plate corresponding to the first connecting plates. A number of evenly distributed connecting rods are provided between the first connecting plates and the second connecting plates, and the two ends of the connecting rods are rotatably connected to the first connecting plate and the second connecting plate, respectively.

[0011] As a preferred technical solution of this invention, the end of the internally threaded telescopic rod is provided with a cap, and the cap is provided with a handle.

[0012] As a preferred technical solution of this invention, the output component includes a motor fixedly mounted on a bottom bracket on one side of the upright, a speed reducer at the output end of the motor, and a first gear fixedly mounted at the output end of the speed reducer.

[0013] As a preferred technical solution of this invention, the transmission component includes a transmission shaft rotatably connected to a detachable shaft seat, one end of the transmission shaft being fixedly connected to a fixed shaft, and the other end being fixedly connected to a second gear, with a toothed chain between the second gear and the first gear.

[0014] As a preferred technical solution of this invention, the dust cover is a bottomless cover, and the various sides of the dust cover can be detachably spliced ​​together. One side of the dust cover is provided with a hole for the transmission shaft to pass through.

[0015] The beneficial effects of this invention are as follows: (1) Three-point synchronous centering and clamping completely solves the problem of roll material wrinkling. This device uses three pressure plates that are evenly distributed around the circumference to synchronously extend and tighten the roll material roller, realizing automatic coaxial centering of the roll material roller. During the winding process, the roll material roller is subjected to uniform circumferential force, and the tension on the left and right sides of the roll material remains consistent. This avoids the defects such as stretching, wrinkling, bulging, and edge misalignment caused by the eccentric sway of traditional two-point support, and greatly improves the yield of various flexible inkjet roll materials such as light box cloth, vehicle stickers, and canvas.

[0016] (2) Adaptive multi-specification roll material roller with strong versatility. The extension and retraction stroke of the three pressure plates can be adjusted synchronously by simply rotating the end handle. It can be adapted to roll material rollers with different inner diameters without the need to replace the matching clamping accessories. The adjustment steps are simple when switching roll material specifications. It is suitable for batch printing and processing of multiple types and specifications of roll materials, effectively improving production switching efficiency.

[0017] (3) Integrated dustproof structure to reduce equipment failure rate. It is equipped with a detachable and splicable bottomless dust cover, which can completely cover all transmission components such as motor, gear, and gear chain, and isolate workshop ink dust and cloth debris from adhering to the transmission meshing position, prevent gear jamming, gear chain corrosion, motor overload damage, extend the service life of the whole machine, and reduce daily equipment maintenance costs.

[0018] (4) Single person can quickly load and unload materials, and the operation is labor-saving and convenient. Only one side handle needs to be turned to complete the clamping and unloading of the roll material. There is no need for simultaneous adjustment at both ends, and a single person can complete the loading and unloading of the roll material. The connecting rod hinge transmission structure extends and retracts smoothly without jamming, with low adjustment resistance, which greatly shortens the loading and unloading time and reduces the intensity of manual operation. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of an anti-wrinkle advertising inkjet printing roll rewinding and unwinding control device proposed in this invention; Figure 2 This is an exploded view of the structure of an anti-wrinkle advertising inkjet printing roll rewinding and unwinding control device proposed in this invention. Figure 3 This is a schematic diagram of the internal structure of an anti-wrinkle advertising inkjet printing roll rewinding and unwinding control device proposed in this invention; Figure 4This is a schematic diagram of the adaptive roll clamping device of an anti-wrinkle advertising inkjet printing roll winding and unwinding control device proposed in this invention.

[0021] In the attached drawings: 1. Bottom support; 2. Stand; 3. Output assembly; 301. Motor; 302. Reducer; 303. First gear; 4. Transmission assembly; 401. Second gear; 402. Transmission shaft; 403. Gear chain; 5. Adaptive roll clamping device; 501. Mounting disc; 502. Fixed shaft; 503. Internal thread telescopic rod; 504. Cap; 505. Handle; 506. Strip groove; 507. Pressure plate; 508. Connecting rod; 509. First connecting plate; 510. Second connecting plate; 6. Roll; 7. Dust cover; 8. Removable shaft seat. Detailed Implementation

[0022] like Figures 1 to 4 As shown, this invention discloses an anti-wrinkle advertising inkjet printing roll winding and unwinding control device, including a bottom support 1, a vertical frame 2 fixedly installed on the bottom support 1, an output component 3 set on one side of the bottom support 1, and a transmission component 4 assembled on the top of the vertical frame 2 near the output component 3; a detachable shaft seat 8 is set on the vertical frame 2, and the transmission component 4 is rotatably engaged with the detachable shaft seat 8; an adaptive roll clamping device 5 is fixed at the end of the transmission component 4 away from the output component 3, a roll roller 6 is fitted outside the adaptive roll clamping device 5, and a detachable dust cover 7 is detachably spliced ​​over the transmission component 4 and the output component 3.

[0023] The output component 3 includes a motor 301, a reducer 302 and a first gear 303. The motor 301 is fixed on the bottom bracket 1, the output end of the motor 301 is connected to the reducer 302, and the first gear 303 is installed on the output shaft of the reducer 302.

[0024] The transmission component 4 includes a second gear 401, a transmission shaft 402, and a gear chain 403. The transmission shaft 402 is rotatably mounted inside the detachable bearing 8. One end of the transmission shaft 402 is fixedly connected to the fixed shaft 502 of the adaptive roll clamping device 5, and the other end is fixed to the second gear 401. The second gear 401 and the first gear 303 are driven by meshing transmission through the gear chain 403. After the motor 301 is reduced in speed by the reducer 302, it drives the transmission shaft 402 to rotate as a whole through gear and gear chain transmission, thereby realizing the synchronous winding and unwinding actions of the roll 6.

[0025] The adaptive roll clamping device 5 includes a mounting plate 501, a fixed shaft 502, an internally threaded telescopic rod 503, a cap 504, a handle 505, a strip groove 506, a pressure plate 507, a connecting rod 508, a first connecting plate 509, and a second connecting plate 510. The fixed shaft 502 is fixed to the end of the transmission shaft 402. The mounting plate 501 is fixed to the outside of the fixed shaft 502. Three radially distributed strip grooves 506 are opened on the mounting plate 501. The fixed shaft 502 is threaded to the external side of the internally threaded telescopic rod 503. The cap 504 is integrally set at the front end of the internally threaded telescopic rod 503. A handle 505 for easy manual rotation is installed on the outside of the cap 504.

[0026] The outer periphery of the internal threaded telescopic rod 503 is fixed with three sets of evenly distributed first connecting plates 509. The bottom of each pressure plate 507 is provided with a corresponding second connecting plate 510. Multiple connecting rods 508 are hinged between each set of first connecting plates 509 and second connecting plates 510. The rear end of the pressure plate 507 is slidably inserted into the inside of the strip groove 506 and can only slide radially along the groove.

[0027] During assembly, first place the bottom bracket 1 on the ground at the output end of the inkjet printing equipment to achieve horizontal fixation, and weld or bolt the upright frame 2 to the middle of the bottom bracket 1; install the motor 301 and reducer 302 on the side of the bottom bracket 1, and assemble the first gear 303 on the output end of the reducer; lock the detachable shaft seat 8 to the top of the upright frame 2, insert the transmission shaft 402, install the second gear 401 at the rear end of the transmission shaft 402, and connect the gear chain 403 to the outside of the first gear 303 and the second gear 401 to complete the transmission connection; assemble the adaptive roll clamping device 5: install the mounting plate Body 501 is fixed on fixed shaft 502, pressure plate 507 is inserted into strip groove body 506, connecting rod 508 is hinged between first connecting plate 509 and second connecting plate 510, internal thread telescopic rod 503 is screwed into fixed shaft 502, and cap body 504 with handle 505 is installed at the front end; then the whole clamping device is fixed to the front end of transmission shaft 402; take the roll roller 6 matching the advertising inkjet printing roll and put it on the outside of the three sets of pressure plates 507; splice the panels of dust cover 7, leave the transmission shaft 402 through hole, and cover the output component 3 and transmission component 4 as a whole to complete the assembly of the whole machine.

[0028] In practical use, by holding the handle 505 and rotating the cap 504 in the forward direction, the internal thread telescopic rod 503 moves forward relative to the fixed shaft 502. Through the connecting rod 508, the three pressure plates 507 are pulled inward along the strip groove 506, at which point the roll material roller 6 can be fitted onto the outside of the pressure plates. By rotating the handle 505 in the reverse direction, the internal thread telescopic rod 503 retracts backward, and the connecting rod 508 pushes the pressure plates 507 outward along the groove. The three pressure plates simultaneously tighten the inner wall of the roll material roller 6, achieving automatic centering and clamping of the roll material roller. This method is suitable for roll material rollers with various inner diameter specifications, without eccentricity or loosening. The motor 301 is started, and the power is reduced in speed and increased in torque by the reducer 302. The first gear 303, the gear chain 403, and the second gear 401 drive the transmission shaft 402 to rotate at a constant speed. The clamping device 5 drives the roll material roller 6 to rotate synchronously, completing the winding or unwinding of the advertising inkjet printing roll material. The three sets of pressure plates synchronously and evenly support the roll material roller. The roll material roller is subjected to uniform force throughout the winding process, and the tension on both sides of the roll material is consistent. There will be no difference in tension on one side, which avoids the problems of roll material wrinkling, bulging, and stretching deformation from the root. When the equipment is running, the modular dust cover 7 completely encloses the output component 3 and the transmission component 4, isolating the workshop dust and ink debris, preventing dust from entering the transmission pair and causing jamming and wear, and extending the service life of the equipment; when the equipment is under maintenance, each panel of the dust cover can be directly disassembled, which is convenient to disassemble and install without the need for the overall disassembly device. After processing a roll of material, stop the machine, turn the handle 505 in the forward direction to retract the pressure plate 507 inward, loosen the roll roller 6, remove the empty roller directly, replace it with a new roll roller, and repeat the tightening operation to continue working.

Claims

1. A wrinkle-resistant advertising inkjet printing roll winding and unwinding control device, comprising a bottom support (1), a vertical frame (2) on the bottom support (1), an output component (3) located on one side of the vertical frame (2) on the bottom support (1), a transmission component (4) on the top of the vertical frame (2) near the output component (3), a detachable bearing seat (8) rotatably connected to the transmission component (4) on the vertical frame (2), an adaptive roll clamping device (5) on the end of the transmission component (4) away from the output component (3), a roll roller (6) sleeved on the adaptive roll clamping device (5), and dust covers (7) on the transmission component (4) and the output component (3), characterized in that: The adaptive roll clamping device (5) includes a fixed shaft (502) fixedly connected to the output end of the transmission component (4). An internal thread telescopic rod (503) is threaded onto the fixed shaft (502). Three evenly distributed pressure plates (507) are provided on the outside of the internal thread telescopic rod (503). When the internal thread telescopic rod (503) rotates relative to the fixed shaft (502), the three pressure plates (507) are retracted and extended.

2. The anti-wrinkle advertising inkjet printing roll rewinding and control device according to claim 1, characterized in that: The adaptive roll clamping device (5) also includes a mounting plate (501) fixedly connected to the fixed shaft (502). The mounting plate (501) is provided with three radially distributed strip grooves (506), and one end of the pressure plate (507) is slidably connected to the strip grooves (506).

3. The anti-wrinkle advertising inkjet printing roll rewinding and control device according to claim 2, characterized in that: The internal thread telescopic rod (503) is provided with three evenly distributed first connecting plates (509), and the bottom of the pressure plate (507) is provided with a second connecting plate (510) corresponding to the first connecting plate (509). A number of evenly distributed connecting rods (508) are provided between the first connecting plate (509) and the second connecting plate (510), and the two ends of the connecting rods (508) are rotatably connected to the first connecting plate (509) and the second connecting plate (510) respectively.

4. The anti-wrinkle advertising inkjet printing roll rewinding and control device according to claim 3, characterized in that: The end of the internal thread telescopic rod (503) is provided with a cap (504), and a handle (505) is provided on the cap (504).

5. The anti-wrinkle advertising inkjet printing roll rewinding and control device according to claim 1, characterized in that: The output component (3) includes a motor (301) fixedly mounted on the bottom bracket (1) on one side of the stand (2). The output end of the motor (301) is provided with a speed reducer (302), and the output end of the speed reducer (302) is fixedly mounted with a first gear (303).

6. The anti-wrinkle advertising inkjet printing roll rewinding and control device according to claim 5, characterized in that: The transmission assembly (4) includes a transmission shaft (402) rotatably connected to a detachable shaft seat (8). One end of the transmission shaft (402) is fixedly connected to a fixed shaft (502), and the other end is fixedly connected to a second gear (401). A toothed chain (403) is provided between the second gear (401) and the first gear (303).

7. The anti-wrinkle advertising inkjet printing roll rewinding and control device according to claim 6, characterized in that: The dust cover (7) is a bottomless cover. The surfaces of the dust cover (7) can be disassembled and spliced ​​together. One surface of the dust cover (7) has a hole for the transmission shaft (402) to pass through.

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