High-strength digital printing special conveying belt with multi-layer structure

Abstract

The invention relates to the technical field of digital printing conveying belts, in particular to a multilayer-structure high-strength digital printing special conveying belt which comprises a supporting frame and a conveying belt body, and cloth is placed at the upper top end of the conveying belt body. By arranging the adsorption assembly, floating floating hair is absorbed through an air pump and an air suction frame, then the floating hair is fed into the cyclone separator through a second air pipe, and due to the fact that the speed of air flow entering the cyclone separator is high, spiral air flow can be formed in the cyclone separator; floating hair and impurities in the spiral air flow are gradually accumulated in the cyclone separator due to pressure until entering the collecting frame, and the air flow enters the air storage bin through the air conveying three-way pipe to be stored, so that part of floating hair and impurities are doped in the air flow; therefore, the air can enter the air pressure mechanism.

Description

Technical Field

[0001] The present invention relates to the field of digital printing conveyor belts, and specifically to a high-strength digital printing special conveyor belt with a multi-layer structure. Background Art

[0002] The digital printing special conveyor belt is the core transmission component in digital inkjet printing equipment. Traditional textile printing relies on rotary screens or flat screens for plate making, and the conveyor belt only needs to meet the requirements of low-speed and intermittent transmission, and mostly uses rubber or ordinary polyester materials. With the adoption of non-contact printing technology in digital printing, the conveyor belt is required to achieve continuous, high-precision, and high-stability fabric transmission.

[0003] In the prior art, impurities such as floating hairs, thread ends, and dust are inevitably generated in the production process of fabrics. When the fabrics are transported through the conveyor belt, these impurities are extremely likely to adhere to the surface of the conveyor belt, forming a continuous pollution source. Since the conveyor belt usually adopts a circulating operation mode, the impurities remaining on the surface will be continuously transferred during the repeated contact with the fabrics, resulting in defects such as white spots and color spots in the printing area of the fabrics, seriously affecting the aesthetics and qualification rate of the finished products. At the same time, the floating hairs carried by the fabrics themselves are easily affected by electrostatic adsorption during transportation. If the impurities on the surface of the conveyor belt are not cleaned in time, with the accumulation of production time, the impurity layer will gradually thicken and form hard lumps, accelerating the wear of the conveyor belt surface and shortening its service life. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-strength digital printing special conveyor belt with a multi-layer structure to solve the problems raised in the above background art.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A high-strength digital printing special conveyor belt with a multi-layer structure includes a support frame and a conveyor belt body. Fabrics are placed on the upper end of the conveyor belt body. A top frame is fixedly connected to the upper end of the support frame. An adsorption assembly is arranged on the upper end of the top frame. The adsorption assembly is used to absorb impurities on the surfaces of the fabrics and the conveyor belt body. An air pressure mechanism for exhausting gas and applying pressure on the fabric surface is arranged on the outer side wall of the top frame. A transmission mechanism for driving the conveyor belt body to work is arranged inside the support frame.

[0006] Preferably, the adsorption assembly includes an air pump fixedly connected to the top end of the top frame. A cyclone separator for helically filtering impurities is fixedly connected to the top end of the top frame. The cyclone separator is located on one side of the air pump. Fixing brackets are symmetrically and fixedly connected to the outer side wall of the top frame on the side away from the air pressure mechanism. Second electric push rods are fixedly connected to the lower ends of the two fixing brackets. The telescopic ends of the second electric push rods are fixedly connected to second limit frames. The ends of the two second limit frames close to each other are connected in a damped manner to an air suction frame for absorbing gas, and the air suction frame is inclined at an angle of forty degrees.

[0007] Preferably, the adsorption assembly further includes an air suction three-way pipe fixedly connected to the end of the air suction frame. The end of the air suction three-way pipe away from the air suction frame is fixedly connected to the suction end of the air pump. The remaining two ends of the air suction three-way pipe are communicated with the air suction frame, and the two communication points are respectively located at both ends of the air suction frame close to the air pressure mechanism. The discharge end of the air pump is fixedly connected to a second air pipe, and the other end of the second air pipe is fixedly connected and communicated with the access end of the cyclone separator.

[0008] Preferably, a first air pipe is fixedly connected to the top end of the cyclone separator, and the first air pipe extends into the cyclone separator. The lower end of the cyclone separator is connected by flange bolts to a collection box for storing impurities.

[0009] Preferably, the air pressure mechanism includes two mounting frames symmetrically and fixedly connected to the outer side wall of the top frame. An air storage chamber for temporarily storing gas is fixedly connected inside each of the two mounting frames. First electric push rods are symmetrically and fixedly connected to the inner top end of the top frame. The telescopic ends of the two first electric push rods are fixedly connected to first limit frames. An air pressure plate for discharging gas is fixedly connected to the opposite sides of the two first limit frames.

[0010] Preferably, the air pressure mechanism further includes a filter screen fixedly connected inside the air storage chamber. An exhaust plate is fixedly connected inside the air storage chamber below the filter screen. A gas blocking plate is rotatably connected to the lower end of the exhaust plate. A gas blocking ring is fixedly connected to the lower end of the exhaust plate. The gas blocking ring abuts against the outer wall of the gas blocking plate. A sealing ring for sealing is fixedly sleeved on the outer wall of the gas blocking plate, and the sealing ring is located inside the gas blocking ring. The exhaust plate and the gas blocking plate are sealed by the sealing ring.

[0011] Preferably, on one side of the outer walls of the two gas storage bins that face each other, a protective frame is fixedly connected. At the center of the upper end of the protective frame, a first motor is fixedly connected. The output end of the first motor is fixedly connected to a driving rod, and a sealing bearing is fixedly connected to the contact end of the driving rod and the protective frame. The driving rod is rotatably sleeved with the protective frame through the sealing bearing. At the end of the driving rod located inside the protective frame, a double synchronous pulley is fixedly connected. At the lower bottom ends of the two air-blocking plates, single synchronous pulleys are fixedly connected, and a synchronous belt for transmission is sleeved on the outer walls of the two single synchronous pulleys and the double synchronous pulley. The two synchronous belts are arranged vertically.

[0012] Preferably, exhaust pipes are fixedly connected to the discharge ends of the two gas storage bins, and one end of the exhaust pipe far from the gas storage bin is fixedly connected to the intake end of the pressure plate. The intake ends of the two gas storage bins are fixedly connected to the same gas transmission three-way pipe, and the remaining end of the gas transmission three-way pipe is fixedly connected and communicated with the end of the first air pipe. Exhaust holes for gas passage are respectively formed through the upper tops of the exhaust plate and the sealing ring.

[0013] Preferably, the transmission mechanism includes a second motor fixedly connected to the inner bottom end of the support frame. The inner side walls of the support frame are symmetrically and rotatably sleeved with driving roller wheels, and they are rotatably sleeved through bearings. The conveyor belt main body is sleeved on the outer walls of the two driving roller wheels. The output end of the second motor and the rotating shaft end of one of the driving roller wheels are both fixedly connected with sprockets, and a chain is sleeved on the outer walls of the two sprockets.

[0014] Preferably, bearing brackets are symmetrically fixedly connected to the upper top of the support frame. A cleaning roller is rotatably sleeved inside the bearing bracket. The cleaning roller is used to apply a rotational force to the conveyor belt main body and the fabric surface. The bearing bracket and the cleaning roller are rotatably sleeved through bearings. A third motor is fixedly connected to the outer side wall of the support frame at a position corresponding to the cleaning roller, and the output end of the third motor is fixedly connected to the rotating shaft of the cleaning roller. A number of T-shaped support steel frames are fixedly connected to the inner side wall of the support frame, and the T-shaped support steel frames are located at the intervals between the two driving roller wheels.

[0015] Advantages of the present invention: 1. By providing an adsorption assembly, the present invention first absorbs the floating fluff through an air pump and an air suction frame, and then sends it into the cyclone separator through the second air pipe. Since the air flow entering the cyclone separator is relatively fast, a spiral air flow will be formed inside the cyclone separator. The fluff and impurities in the spiral air flow will gradually accumulate inside the cyclone separator due to pressure until they enter the collection frame, and the air flow will enter the gas storage bin through the gas transmission three-way pipe for storage. Since there is some fluff and impurities doped in the air flow, they will enter the pressure mechanism.

[0016] 2. In the present invention, when air flow enters the interior of the air storage bin through the pneumatic mechanism, it will be temporarily stored, and the floating hairs and impurities in the air flow will be further blocked by the filter screen, thus achieving the purpose of interception. When the gas inside the air storage bin needs to be used, the first motor will drive the drive rod and the double synchronous pulley to rotate, and then drive the single synchronous pulley and the air blocking plate to perform circular motion through the synchronous belt. When the air blocking plate aligns with the exhaust holes on the outer wall of the exhaust plate, since the gas finds the discharge end, a large amount of gas will be discharged. And because the gas continuously accumulates inside the mounting rack and is blocked by the sealing ring, the pressure of the gas can be increased. When discharging, the generated pressure is relatively strong, and then the gas is discharged through the exhaust pipe and the air pressure plate. Since the fabric is located below the air pressure plate, the discharged gas pressure will be directly applied to the fabric, ensuring its stability during printing and guaranteeing the beauty of the printing. After the gas cleans the surface of the fabric, it will enter the cyclone separator for treatment, so that the gas will not be doped with impurities. When needed, the gas will enter the air storage bin for temporary storage, and at this time, the gas will be reused, enabling the gas to apply pressure to the fabric, thereby increasing the stability during the printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the top of the support frame of the present invention; Figure 3 is the structural schematic diagram of the separation of the support frame and the conveyor belt main body of the present invention; Figure 4 is the top view structural schematic diagram of the support frame of the present invention; Figure 5 is the structural schematic diagram of the top frame of the present invention; Figure 6 is the side view structural schematic diagram of the top frame of the present invention; Figure 7 is the structural schematic diagram of the disassembly of the cyclone separator of the present invention; Figure 8 is the sectional structural schematic diagram of the air storage bin of the present invention; Figure 9 is the structural schematic diagram of the disassembly of the exhaust plate of the present invention; The reference numerals in the figures are as follows: 1, support frame; 2, fabric; 3, conveyor belt body; 4, top frame; 5, pneumatic mechanism; 51, mounting frame; 52, gas storage bin; 53, first electric push rod; 531, first limiting frame; 532, pneumatic plate; 533, exhaust pipe; 54, filter screen; 55, first motor; 551, driving rod; 552, double synchronous pulley; 553, single synchronous pulley; 554, synchronous belt; 56, protective frame; 57, exhaust plate; 571, exhaust hole; 572, air-blocking ring; 573, air-blocking plate; 574, sealing ring; 6, adsorption assembly; 61, cyclone separator; 611, first air pipe; 612, collection box; 62, air pump; 63, second air pipe; 64, fixed support; 641, second electric push rod; 642, second limiting frame; 643, suction frame; 644, suction tee; 65, air delivery tee; 7, transmission mechanism; 71, second motor; 72, sprocket; 73, chain; 74, driving roller; 75, T-shaped support steel frame; 76, third motor; 77, bearing frame; 78, cleaning roller. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0019] As Figures 1 to 9 shown, a high-strength digital printing special conveyor belt with a multi-layer structure includes a support frame 1 and a conveyor belt body 3. A fabric 2 is placed on the upper top end of the conveyor belt body 3. A top frame 4 is fixedly connected to the upper top end of the support frame 1. An adsorption assembly 6 is arranged on the upper top end of the top frame 4. The adsorption assembly 6 is used to absorb impurities on the surfaces of the fabric 2 and the conveyor belt body 3. A pneumatic mechanism 5 for discharging gas and applying pressure on the surface of the fabric 2 is arranged on the outer side wall of the top frame 4. A transmission mechanism 7 for driving the conveyor belt body 3 to work is arranged inside the support frame 1.

[0020] It should be noted that the adsorption component 6 can effectively absorb impurities on the surfaces of the fabric 2 and the conveyor belt main body 3, ensuring the cleanliness of the surface of the fabric 2 during the printing process, avoiding the influence of impurities on the printing quality, and improving the printing yield. The air pressure mechanism 5 can discharge gas and apply pressure on the surface of the fabric 2, making the fabric 2 more flat and fitting during printing, enhancing the clarity and uniformity of the printed pattern. The transmission mechanism 7 is arranged inside the support frame 1 and can stably drive the conveyor belt main body 3 to work, ensuring the smoothness and continuity of the conveying process and improving production efficiency. By adopting the cooperation mode of the adsorption component 6 and the air pressure mechanism 5, the gas discharged by the adsorption component 6 can be reused during use, so that the process will be more stable during the printing of the fabric 2.

[0021] As a technical optimization solution of this embodiment, the adsorption component 6 includes an air pump 62 fixedly connected to the top end of the top frame 4. A cyclone separator 61 for helically filtering impurities is fixedly connected to the top end of the top frame 4. The cyclone separator 61 is located on one side of the air pump 62. On the outer side wall of the top frame 4, symmetrically fixed brackets 64 are fixedly connected to the side away from the air pressure mechanism 5. Second electric push rods 641 are fixedly connected to the lower bottom ends of the two fixed brackets 64. The telescopic ends of the second electric push rods 641 are fixedly connected to second limit frames 642. The ends of the two second limit frames 642 close to each other are dampedly connected to an air suction frame 643 for absorbing gas, and the air suction frame 643 is inclined at an angle of forty degrees.

[0022] It should be noted that the cooperation of the air pump 62 and the cyclone separator 61 can efficiently suck impurities on the surfaces of the fabric 2 and the conveyor belt main body 3, and helically filter the impurities through the cyclone separator 61, avoiding the accumulation of impurities on the conveyor belt main body 3 and ensuring the cleanliness of the printing operation environment. The combined design of the fixed brackets 64 and the second electric push rods 641 can flexibly adjust the height of the air suction frame 643 to adapt to the adsorption requirements of fabrics 2 with different thicknesses. The pipeline connected to the air suction frame 643 can use a spring air pipe or a corrugated pipe. Since the air suction frame 643 is inclined at an angle of forty degrees, it can increase the adsorption area, optimize the air flow direction by using the inclination angle, improve the impurity adsorption efficiency, and the damping design of the air suction frame 643 can effectively make rapid adjustments to ensure that its angle is always effective.

[0023] As a technical optimization solution of this embodiment, the adsorption assembly 6 further includes an air suction tee 644 fixedly connected to the end of the air suction frame 643. One end of the air suction tee 644 away from the air suction frame 643 is fixedly connected to the suction end of the air pump 62. The remaining two ends of the air suction tee 644 communicate with the air suction frame 643, and the two communication points are respectively located at both ends of the air suction frame 643 close to the pressure mechanism 5. The discharge end of the air pump 62 is fixedly connected with a second air pipe 63, and the other end of the second air pipe 63 is fixedly connected and communicated with the access end of the cyclone separator 61. The upper top end of the cyclone separator 61 is fixedly connected with a first air pipe 611, and the first air pipe 611 extends into the cyclone separator 61. The lower bottom end of the cyclone separator 61 is connected by flange bolts with a collection box 612 for storing impurities.

[0024] It should be noted that the air suction tee 644 connects the air suction frame 643 and the suction end of the air pump 62, enabling the air suction frame 643 to efficiently collect impurity gas and stably transport it to the air pump 62, ensuring the continuity and stability of impurity adsorption. The air pump 62 transports the gas to the cyclone separator 61 through the second air pipe 63. The cyclone separator 61 can efficiently separate impurities in the gas, preventing impurities from entering the working environment again and ensuring the continuous cleanliness of the surface of the fabric 2 and the conveyor belt main body 3. The first air pipe 611 is located inside the cyclone separator 61. The gas discharged by the air pump 62 is doped with impurities and can pass through the cyclone separation area. At this time, the airflow is separated from the impurities. The impurities will enter the interior of the lower collection box 612, and the airflow is discharged through the first air pipe 611.

[0025] As a technical optimization solution of this embodiment, the pressure mechanism 5 includes two mounting frames 51 symmetrically and fixedly connected to the outer side wall of the top frame 4. Inside both mounting frames 51, there is fixedly connected an air storage bin 52 for temporarily storing gas. The inner top end of the top frame 4 is symmetrically and fixedly connected with first electric push rods 53. The telescopic ends of the two first electric push rods 53 are fixedly connected with first limiting frames 531. On the opposite sides of the two first limiting frames 531, there is fixedly connected a pressure plate 532 for discharging gas.

[0026] It should be noted that the combination of the mounting frame 51 and the air storage bin 52 provides a stable space for temporarily storing gas, ensuring the continuity of the pressure operation. The pressure plate 532 can evenly apply the gas on the surface of the fabric 2, enabling it to fit more closely to the surface of the conveyor belt main body 3 during the printing process, enhancing the clarity and uniformity of the pattern after printing, and reducing the situation where the printing effect is poor due to the fabric 2 not fitting closely enough to the surface of the conveyor belt main body 3.

[0027] As a technical optimization scheme of this embodiment, the pneumatic mechanism 5 also includes a filter screen 54 fixedly connected to the inside of the air storage bin 52, and the inside of the air storage bin 52 is fixedly connected with an exhaust plate 57 located below the filter screen 54, and the lower bottom end of the exhaust plate 57 is rotatably connected with an air blocking plate 573, and the lower top end of the exhaust plate 57 is fixedly connected with an air blocking ring 572, which abuts against the outer wall of the air blocking plate 573, and the outer wall of the air blocking plate 573 is fixedly sleeved with a sealing ring 574 for sealing, and the sealing ring 574 is located inside the air blocking ring 572, and the exhaust plate 57 and the air blocking plate 573 are sealed by the sealing ring 574.

[0028] It should be noted that the filter 54 can effectively filter the gas entering the gas storage bin 52, remove impurities, ensure the purity of the exhaust gas, and prevent impurities from escaping with the gas again, affecting the fabric 2 during printing. The impurities will adhere to the fabric 2 again, thereby affecting the quality of the fabric 2 after printing. The combined design of the air blocking ring 572 and the sealing ring 574 enhances the sealing between the air blocking plate 573 and the exhaust plate 57, prevents gas leakage, and ensures the stability of the air pressure output.

[0029] As a technical optimization scheme of this embodiment, a protective frame 56 is fixedly connected to the opposite side of the outer wall of the two gas storage bins 52, and a first motor 55 is fixedly connected to the center of the upper top of the protective frame 56. A driving rod 551 is fixedly connected to the output end of the first motor 55, and a sealed bearing is fixedly connected between the contact end of the driving rod 551 and the protective frame 56, and the driving rod 551 is rotatably sleeved with the protective frame 56 through the sealed bearing, and the end of the driving rod 551 is located inside the protective frame 56 and is fixedly connected with a double synchronous wheel 552, and the lower bottom ends of the two air blocking plates 573 are fixedly connected with a single synchronous wheel 553, and the outer walls of the two single synchronous wheels 553 and the double synchronous wheels 552 are sleeved with a synchronous belt 554 for transmission, and the two synchronous belts 554 are arranged up and down.

[0030] It should be noted that the first motor 55 cooperates with the driving rod 551 and the double synchronous wheels 552 to drive the two single synchronous wheels 553 to rotate synchronously through the synchronous belt 554, thereby realizing the synchronous opening and closing of the two air blocking plates 573, ensuring that the gas discharge volume of the two gas storage bins 52 is consistent, so that the cloth 2 is evenly stressed, and the sealed bearing ensures that the driving rod 551 rotates smoothly and is well sealed to prevent gas leakage and ensure the pressure stability inside the gas storage bin 52. At the same time, a corresponding one-way valve can be installed on the outer wall of the gas transmission tee 65, which is not shown in the figure, to avoid the backflow of gas entering the gas storage bin 52, causing the pressure inside the gas storage bin 52 to change, thereby affecting the pressure inside each gas storage bin 52 and causing uneven pressure.

[0031] As a technical optimization solution of this embodiment, exhaust pipes 533 are fixedly connected to the discharge ends of both gas storage bins 52, and the end of the exhaust pipe 533 away from the gas storage bin 52 is fixedly connected to the intake end of the pressure plate 532. The intake ends of the two gas storage bins 52 are fixedly connected to the same gas transmission tee 65, and the remaining end of the gas transmission tee 65 is fixedly connected and communicated with the end of the first air pipe 611. Exhaust holes 571 for gas passage are respectively formed through the upper tops of the exhaust plate 57 and the sealing ring 574.

[0032] It should be noted that the exhaust pipe 533 connects the gas storage bin 52 and the pressure plate 532, enabling the processed gas in the gas storage bin 52 to be stably transported to the pressure plate 532, ensuring the continuity of air pressure output. The gas transmission tee 65 connects the first air pipe 611 of the cyclone separator 61 and the intake end of the gas storage bin 52, allowing the clean gas separated by the cyclone separator 61 to enter the gas storage bin 52, realizing the recycling of gas and improving the resource utilization rate. The exhaust hole 571 cooperates with the sealing ring 574 to accurately control the gas discharge amount when the air blocking plate 573 rotates, ensuring the stable output of air pressure.

[0033] As a technical optimization solution of this embodiment, the transmission mechanism 7 includes a second motor 71 fixedly connected to the inner bottom end of the support frame 1. Driving rollers 74 are symmetrically and rotatably sleeved on the inner side walls of the support frame 1, and they are rotatably sleeved through bearings. The conveyor belt main body 3 is sleeved on the outer walls of the two driving rollers 74. Sprockets 72 are fixedly connected to the output end of the second motor 71 and the rotating shaft end of one of the driving rollers 74, and a chain 73 is sleeved on the outer walls of the two sprockets 72.

[0034] It should be noted that when the output end of the second motor 71 works, it can drive the chain 73 to work through the two sprockets 72, so as to drive the driving roller 74 to rotate, and further drive the conveyor belt main body 3 to move, thereby cooperating with the fabric 2 to print it.

[0035] As a technical optimization solution of this embodiment, bearing brackets 77 are symmetrically and fixedly connected to the upper top of the support frame 1. A cleaning roller 78 is rotatably sleeved inside the bearing bracket 77. The cleaning roller 78 is used to apply a rotating force to the surfaces of the conveyor belt main body 3 and the fabric 2. The bearing bracket 77 and the cleaning roller 78 are rotatably sleeved through bearings. A third motor 76 is fixedly connected to the outer side wall of the support frame 1 corresponding to the position of the cleaning roller 78, and the output end of the third motor 76 is fixedly connected to the rotating shaft of the cleaning roller 78. A number of T-shaped support steel frames 75 are fixedly connected to the inner side wall of the support frame 1, and the T-shaped support steel frames 75 are located at the intervals between the two driving rollers 74.

[0036] It should be noted that the bearing bracket 77 cooperates with the cleaning roller 78, and the third motor 76 drives the cleaning roller 78 to rotate, applying a rotational cleaning force to the surfaces of the conveyor belt main body 3 and the fabric 2, effectively removing surface impurities, ensuring the cleanliness of the material before printing, improving the printing quality, and the bearing connection ensures that the cleaning roller 78 rotates flexibly and stably, reducing running noise and wear.

[0037] When the present invention is in use, the second motor 71 in the transmission mechanism 7 starts, and through the transmission of the sprocket 72 and the chain 73, drives one of the driving roller wheels 74 to rotate. Since the conveyor belt main body 3 is sleeved on the outer walls of the two driving roller wheels 74, the other driving roller wheel 74 also rotates accordingly, thereby realizing the continuous operation of the conveyor belt main body 3 and driving the fabric 2 to move. During the conveying process, the cleaning roller 78 rotates under the drive of the third motor 76, applying a rotational force to the surfaces of the conveyor belt main body 3 and the fabric 2 to further remove possible residual impurities and dust on the surface, ensuring the cleanliness of the fabric 2 surface; Since the impurities and dust will fly under the drive of the cleaning roller 78, at this time the air pump 62 starts to work to generate suction, and absorbs impurities such as floating hairs on the surfaces of the fabric 2 and the conveyor belt main body 3 through the suction rack 643. Since the suction rack 643 is inclined at an angle of forty degrees, it can more effectively cover a certain area and expand the adsorption range. The second electric push rod 641 can drive the second limit frame 642 and the suction rack 643 to adjust the position to adapt to different working scenarios and adsorption requirements. When the device conveys different fabrics 2, due to the different thicknesses of different fabrics 2, if the suction rack 643 always remains in the same position, it is inevitable that due to the height reason, the impurities cannot be well attracted. At this time, the second electric push rod 641 can drive the second limit frame 642 and the suction rack 643 to perform lifting movement. When the impurities on the fabric 2 are fluctuated and float, due to the change in the position of the suction rack 643, it can effectively adsorb the floating hairs of different fabrics 2.

[0038] The absorbed floating hairs and impurities are sent to the suction end of the air pump 62 through the suction three-way pipe 644 along with the air flow, and then are conveyed to the inside of the cyclone separator 61 from the discharge end of the air pump 62 through the second air pipe 63. Inside the cyclone separator 61, due to the relatively high speed of the incoming air flow, a spiral air flow is formed. According to the cyclone separation principle, the floating hairs and impurities in the spiral air flow gradually move towards the inner wall of the cyclone separator 61 under the action of centrifugal force and continuously accumulate, and finally fall into the collection frame 612 under the action of gravity for collection, effectively removing impurities such as floating hairs on the surfaces of the fabric 2 and the conveyor belt main body 3, providing a clean working environment for the subsequent digital printing work, avoiding the influence of impurities on the printing quality, ensuring the clarity and beauty of the printed pattern. At the same time, the spiral air flow can also play a role in collecting floating hairs, realizing the efficient collection of floating hairs, and can also avoid the floating hairs from blocking the air delivery three-way pipe 65.

[0039] The airflow passing through the cyclone separator 61 becomes relatively pure after separation and will enter the interior of the gas storage bin 52 through the first air pipe 611 and the gas transmission three-way pipe 65 for temporary storage. After the impurities on the surface of the fabric 2 are collected by the airflow, they will be recycled after passing through the cyclone separator 61, and the recycled airflow is stored in the gas storage bin 52. During the temporary storage process, a small amount of floating hairs and impurities in the airflow will be further blocked by the filter net 54, making the gas entering the interior of the gas storage bin 52 purer. When the gas inside the gas storage bin 52 needs to be used, the first motor 55 starts, driving the driving rod 551 and the double synchronous pulley 552 to rotate. The double synchronous pulley 552 drives the two single synchronous pulleys 553 to rotate synchronously through the synchronous belt 554, thereby driving the air blocking plate 573 to perform circular motion below the exhaust plate 57; In the initial state, the sealing ring 574 on the air blocking plate 573 is in close contact with the air blocking ring 572 to seal the exhaust hole 571 and prevent gas from escaping. When the air blocking plate 573 rotates by a certain angle, the exhaust hole 571 on its outer wall aligns with the exhaust hole 571 on the exhaust plate 57. At this time, the gas finds the discharge end (i.e., the exhaust hole 571). Since the gas has been continuously accumulating inside the gas storage bin 52 and the mounting frame 51 before, under the blocking effect of the sealing ring 574, the gas pressure gradually increases. When the exhaust hole 571 is opened, the high-pressure gas is discharged on a large scale, enters the intake end of the air pressure plate 532 through the exhaust pipe 533, and then the air pressure plate 532 discharges the gas. Since the fabric 2 is located below the air pressure plate 532, the pressure of the discharged high-pressure gas is directly applied to the fabric 2. During the digital printing process, the pressure generated by this high-pressure gas can ensure that the surface of the fabric 2 is flat and stable, effectively preventing problems such as wrinkles and displacement of the fabric 2, thereby ensuring the precise positioning and high-quality output of the printed pattern, greatly improving the aesthetics and yield of the printing, and the discharge of the air pressure plate 532 is not continuous. It will only be opened when printing the fabric 2 is required. Usually, the exhaust holes 571 on the air blocking plate 573 and the exhaust plate 57 are in an interleaved state, and the airflow is blocked by the air blocking plate 573. Some airflow may flow through the gap between the air blocking plate 573 and the exhaust plate 57. Due to the influence of the sealing ring 574 and the air blocking ring 572, the leakage of the airflow can be further restricted, so the purpose of gas storage can be achieved.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A high-strength digital printing special conveyor belt with a multi-layer structure, comprising a support frame (1) and a conveyor belt body (3), characterized in that, The upper end of the conveyor belt main body (3) is provided with fabric (2). The upper end of the support frame (1) is fixedly connected with a top frame (4). The upper end of the top frame (4) is provided with an adsorption assembly (6). The adsorption assembly (6) is used to absorb impurities on the surfaces of the fabric (2) and the conveyor belt main body (3). The outer side wall of the top frame (4) is provided with a pneumatic mechanism (5) that discharges gas and applies pressure to the surface of the fabric (2). The inside of the support frame (1) is provided with a transmission mechanism (7) that drives the conveyor belt main body (3) to work; The pneumatic mechanism (5) includes two mounting frames (51) symmetrically and fixedly connected to the outer side wall of the top frame (4). Inside both of the mounting frames (51), there is fixedly connected an air storage bin (52) for temporarily storing gas; The pneumatic mechanism (5) further includes a filter screen (54) fixedly connected inside the air storage bin (52). Inside the air storage bin (52), there is fixedly connected an exhaust plate (57) located below the filter screen (54). The lower end of the exhaust plate (57) is rotatably connected to a gas blocking plate (573). The lower end of the exhaust plate (57) is fixedly connected to a gas blocking ring (572). The gas blocking ring (572) abuts against the outer wall of the gas blocking plate (573). The outer wall of the gas blocking plate (573) is fixedly sleeved with a sealing ring (574) for sealing, and the sealing ring (574) is located inside the gas blocking ring (572). The exhaust plate (57) and the gas blocking plate (573) are sealed by the sealing ring (574).

2. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 1, characterized in that, The adsorption assembly (6) includes an air pump (62) fixedly connected to the upper end of the top frame (4). The upper end of the top frame (4) is fixedly connected with a cyclone separator (61) for helically filtering impurities. The cyclone separator (61) is located on one side of the air pump (62). On the side of the outer side wall of the top frame (4) far from the pneumatic mechanism (5), there are symmetrically and fixedly connected fixed brackets (64). The lower ends of both of the fixed brackets (64) are fixedly connected with second electric push rods (641). The telescopic ends of the second electric push rods (641) are fixedly connected with second limit frames (642). The ends of the two second limit frames (642) close to each other are damping-connected with an air suction frame (643) for absorbing gas, and the air suction frame (643) is inclined at an angle of forty degrees.

3. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 2, characterized in that, The adsorption assembly (6) further includes an air suction tee (644) fixedly connected to the end of the air suction frame (643). The end of the air suction tee (644) far from the air suction frame (643) is fixedly connected to the suction end of the air pump (62). The remaining two ends of the air suction tee (644) are communicated with the air suction frame (643), and the two communication points are respectively located at both ends of the air suction frame (643) close to the pneumatic mechanism (5). The discharge end of the air pump (62) is fixedly connected with a second air pipe (63), and the other end of the second air pipe (63) is fixedly connected and communicated with the access end of the cyclone separator (61).

4. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 3, characterized in that, The upper top end of the cyclone separator (61) is fixedly connected to a first air pipe (611), and the first air pipe (611) extends into the cyclone separator (61). The lower bottom end of the cyclone separator (61) is connected to a collection frame (612) for storing impurities by flange bolts.

5. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 4, characterized in that, The inner top end of the top frame (4) is symmetrically and fixedly connected with first electric push rods (53). The telescopic ends of the two first electric push rods (53) are fixedly connected with first limiting frames (531). The opposite sides of the two first limiting frames (531) are fixedly connected with a pressure plate (532) for discharging gas.

6. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 1, characterized in that, On the opposite sides of the outer walls of the two gas storage bins (52), a protective frame (56) is fixedly connected. The center of the upper top end of the protective frame (56) is fixedly connected with a first motor (55). The output end of the first motor (55) is fixedly connected with a driving rod (551). The contact end of the driving rod (551) and the protective frame (56) is fixedly connected with a sealing bearing. The driving rod (551) is rotatably sleeved with the protective frame (56) through the sealing bearing. The end of the driving rod (551) inside the protective frame (56) is fixedly connected with a double synchronous pulley (552). The lower bottom ends of the two air blocking plates (573) are fixedly connected with single synchronous pulleys (553). A synchronous belt (554) for transmission is sleeved on the outer walls of the two single synchronous pulleys (553) and the double synchronous pulley (552). The two synchronous belts (554) are arranged vertically.

7. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 1, characterized in that, The discharge ends of the two gas storage bins (52) are fixedly connected with exhaust pipes (533). The end of the exhaust pipe (533) far from the gas storage bin (52) is fixedly connected with the intake end of the pressure plate (532). The intake ends of the two gas storage bins (52) are fixedly connected with the same gas transmission tee (65). The remaining end of the gas transmission tee (65) is fixedly connected and communicated with the end of the first air pipe (611). Exhaust holes (571) for gas passage are respectively formed through the upper top ends of the exhaust plate (57) and the sealing ring (574).

8. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 1, characterized in that, The transmission mechanism (7) includes a second motor (71) fixedly connected to the inner bottom end of the support frame (1). The inner side walls of the support frame (1) are symmetrically and rotatably sleeved with driving roller wheels (74), and they are rotatably sleeved through bearings. The conveyor belt main body (3) is sleeved on the outer walls of the two driving roller wheels (74). The output end of the second motor (71) and the rotating shaft end of one of the driving roller wheels (74) are both fixedly connected with sprockets (72). A chain (73) is sleeved on the outer walls of the two sprockets (72).

9. The high-strength digital printing special conveyor belt with a multi-layer structure according to claim 8, characterized in that, The upper top ends of the support frame (1) are symmetrically and fixedly connected with bearing frames (77). A cleaning roller (78) is rotatably sleeved inside the bearing frame (77). The cleaning roller (78) is used to apply a rotational force to the surfaces of the conveyor belt main body (3) and the fabric (2). The bearing frame (77) and the cleaning roller (78) are rotatably sleeved through a bearing. A third motor (76) is fixedly connected to the outer side wall of the support frame (1) corresponding to the position of the cleaning roller (78). The output end of the third motor (76) is fixedly connected to the rotating shaft of the cleaning roller (78). A plurality of T-shaped support steel frames (75) are fixedly connected to the inner side wall of the support frame (1), and the T-shaped support steel frames (75) are located at the intervals between the two driving roller wheels (74).

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