Digital jet printing equipment

Abstract

The utility model discloses digital jet printing equipment, which comprises a frame, a first traction roller and a second traction roller are arranged on two sides of the frame, a conveying piece is sleeved on the first traction roller and the second traction roller, a base material is arranged on the conveying piece, and the first traction roller and the second traction roller are arranged on the base material. The first traction roller and the second traction roller are respectively driven by a first motor and a second motor which operate synchronously to drive a conveying piece to move so as to drive a base material on the conveying piece to move and position, and a jet printing head is arranged at the top of the frame and performs jet printing processing on the base material. According to the digital jet printing equipment, the first traction roller and the second traction roller operate synchronously, vibration influence of flexible transmission parts such as a belt is eliminated, so that the transmission parts can be accurately positioned, the problem of poor processing precision is solved, the transmission efficiency of the motor and the moving speed of the belt can be greatly improved, and the production efficiency is improved. The positioning time of the whole machine can be greatly shortened, and the production efficiency can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the printing field, and in particular to the design of a digital inkjet printing device. Background Technology

[0002] In existing digital inkjet printing equipment, an active traction roller 1 drives a passive traction roller 3 via a belt 2 to move and position the substrate 4. After the substrate 4 is positioned, the print head 5 performs inkjet printing. After inkjet printing, the substrate 4 moves and is repositioned, and the print head 5 performs inkjet printing again. This cycle is repeated to complete the inkjet printing process. The existing transmission method adjusts the tension of the belt 2 by adjusting the distance between the active traction roller 1 and the passive traction roller 3. By controlling the tension, the friction between the belt and the roller is controlled, thereby transmitting torque to achieve the transmission and positioning of the substrate 4. Due to the use of a flexible drive method of active traction roller 1 (motor driven) + belt 2, the flexible belt 2 suffers from vibration of the overall transmission system, long positioning time, and poor positioning accuracy, resulting in low processing efficiency and poor processing accuracy (such as white spots and ghosting in inkjet printing). Furthermore, since the passive traction roller 3 is driven by the friction of the belt 2, the belt 2 requires a large internal tension, and as the operating time increases, the belt needs to be tensioned and maintained regularly.

[0003] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this invention is to provide a digital inkjet printing device with high positioning accuracy, high processing accuracy, and high processing efficiency.

[0005] This utility model embodiment proposes a digital inkjet printing device. The device includes a frame, with a first traction roller and a second traction roller arranged on both sides of the frame. A conveying component is sleeved on the first traction roller and the second traction roller, and a substrate is arranged on the conveying component. The first traction roller and the second traction roller are driven by a first motor and a second motor running synchronously, respectively, to move the conveying component and move and position the substrate on the conveying component. A printing head is arranged on the top of the frame, and the printing head prints on the substrate.

[0006] In one specific embodiment, the first motor and the second motor are direct drive motors.

[0007] In one specific embodiment, the first motor and the second motor are direct-drive rotary motors.

[0008] In one specific embodiment, a first support column is provided on one side of the frame, and a first floating mounting plate is provided on the first support column. The first floating mounting plate is provided with a first mounting hole, and the output shaft of the first motor passes through the first mounting hole and is connected to the extension shaft of the first traction roller. A second support column is provided on the other side of the frame, and a second floating mounting plate is provided on the second support column. The second floating mounting plate is provided with a second mounting hole, and the output shaft of the second motor passes through the second mounting hole and is connected to the extension shaft of the second traction roller.

[0009] In one specific embodiment, the output shaft of the first motor is connected to the extension shaft of the first traction roller via a first tension sleeve, and the output shaft of the second motor is connected to the extension shaft of the second traction roller via a second tension sleeve.

[0010] In one specific embodiment, a first motor is equipped with a first encoder, and a second motor is equipped with a second encoder. The device includes a first driver and a second driver. The first encoder detects the operating status of the first motor and feeds it back to the first driver. The second encoder detects the operating status of the second motor and feeds it back to the second driver. The first driver and the second driver control the synchronous operation of the first motor and the second motor.

[0011] In one specific embodiment, the conveyor is a belt.

[0012] In one specific embodiment, the printhead jets digitized images or text onto the substrate.

[0013] In one specific embodiment, the substrate includes any one of paper, textiles, or plastics.

[0014] In one specific embodiment, the device further includes a tension detection device for detecting the tension of the substrate during the conveying process, and adjusting the operating parameters of the first motor and the second motor according to the detection results to maintain a constant tension of the substrate.

[0015] The digital inkjet printing equipment proposed in this utility model uses a first motor and a second motor that operate synchronously to drive the first traction roller and the second traction roller, respectively. This ensures synchronous operation between the first traction roller and the second traction roller, eliminates the vibration influence of flexible transmission components such as belts, and allows for precise positioning of the conveyor components. This significantly improves accuracy and solves the industry pain point of poor processing accuracy, such as white spots and ghosting during inkjet printing. As a result, the transmission efficiency of the motor and the moving speed of the belt can be greatly improved, the positioning time of the whole machine can be greatly shortened, and the production efficiency can be greatly improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a digital inkjet printing device in the prior art.

[0018] Figure 2 This is a schematic diagram of the digital inkjet printing equipment in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram showing the connection between the first traction roller and the first motor in an embodiment of this utility model.

[0020] Explanation of icon numbers:

[0021] label name label name 100 Digital inkjet printing equipment 80 Printhead 10 frame 90 The first tight-fitting 20 First traction roller 101 First support column 30 Second traction roller 102 First floating mounting plate 60 First Motor 1021 First mounting hole 70 Second motor 601 Output shaft 40 Transmitter 201 Extended shaft 50 Substrate

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

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

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figure 2 As shown in the figure, this utility model embodiment proposes a digital inkjet printing device 100. The device includes a frame 10, with a first traction roller 20 and a second traction roller 30 arranged on both sides of the frame. A conveyor 40 is sleeved on the first traction roller 20 and the second traction roller 30, and a substrate 50 is arranged on the conveyor 40. The first traction roller 20 and the second traction roller 30 are driven by a first motor 60 and a second motor 70 running synchronously, respectively, to move the conveyor 40, thereby moving and positioning the substrate 50 on the conveyor 40. A printing head 80 is arranged on the top crossbeam of the frame 10, and the printing head 80 prints on the substrate 40. In a specific embodiment, the conveyor is a belt.

[0028] In this embodiment, the first traction roller 20 and the second traction roller 30 of the digital inkjet printing equipment are both driven by independent motors, and the motors operate synchronously. This ensures the synchronous operation between the first traction roller 20 and the second traction roller 30, eliminating the vibration influence of flexible transmission components such as belts. As a result, the conveyor 40 can be precisely positioned, and the accuracy can be greatly improved. This solves the industry pain point of poor processing accuracy, such as white spots and ghosting during inkjet printing. As a result, the transmission efficiency of the motor and the moving speed of the belt can be greatly improved, the positioning time of the whole machine can be greatly shortened, and the production efficiency can be greatly improved.

[0029] In this embodiment, the first motor 60 and the second motor 70 are direct-drive motors, specifically rotary direct-drive motors (DDR motors). The output shafts of the first motor 60 and the second motor 70 are directly connected to the extension shafts of the first traction roller 20 and the second traction roller 30, without passing through intermediate components such as reducers. In other words, the two traction rollers are directly driven by independent direct-drive motors. Direct-drive motors have advantages such as fast response speed and high control precision. The use of direct-drive motors can reduce intermediate transmission links and improve the overall efficiency and stability of the system.

[0030] like Figure 3As shown, a first support column 101 is provided on the frame below the first traction roller 20. A first floating mounting plate 102 is provided on the first support column 101, and the first floating mounting plate 102 has a first mounting hole 1021. The output shaft 601 of the first motor 60 passes through the first mounting hole 1021 and connects to the extension shaft 201 of the first traction roller 20. Similarly, a second support column (not shown) is provided on the frame below the second traction roller 30, and a second floating mounting plate is provided on the second support column. The second floating mounting plate has a second mounting hole, and the output shaft of the second motor passes through the second mounting hole and connects to the extension shaft of the second traction roller. Utilizing the characteristics of the first and second floating mounting plates, and the functions of the first and second mounting holes 1021 and 1021, facilitates the concentric mounting of the first motor 60 and the first traction roller 20, and the second motor 70 and the second traction roller 30, especially suitable for mounting motors with relatively heavy weights.

[0031] Specifically, the output shaft 601 of the first motor 60 is rigidly connected to the extension shaft of the first traction roller 20 through the first tension sleeve 90, and the output shaft of the second motor is rigidly connected to the extension shaft of the second traction roller through the second tension sleeve.

[0032] In this embodiment, the control system of the digital inkjet printing equipment 100 controls the synchronous operation of the first motor 60 and the second motor 70. Specifically, the control system includes a first driver and a second driver. The first driver drives the operation of the first motor 60, and the second driver drives the operation of the second motor 70. The first motor 60 is equipped with a first encoder, and the second motor 70 is equipped with a second encoder. The first encoder detects the operating status of the first motor 60 (motor speed or position, etc.) and feeds back the detected operating status data to the first driver. The second encoder detects the operating status of the second motor 70 and feeds back the detected operating status data to the second driver. The first driver and the second driver interact based on the feedback operating status data, thereby adjusting the operation of the first motor 60 and the second motor 70 in real time to achieve high-precision synchronization of the first motor 60 and the second motor 70.

[0033] The digital inkjet printing equipment 100 in this embodiment is based on inkjet technology. The printhead works by jetting digitized images or text onto a substrate 50, such as paper, textiles, or plastics. In this embodiment, the substrate 50 is arranged by a winding and unwinding device. After the substrate is printed, the conveyor 40 and the winding and unwinding device work together to move and reposition the substrate 50, and the printhead prints again. This cycle is repeated to complete the printing process on the entire substrate 50.

[0034] In a specific embodiment, the digital inkjet printing equipment 100 also includes a tension detection device for detecting the tension of the substrate 50 during the conveying process, and adjusting the operating parameters of the first motor 60 and the second motor 70 according to the detection results to maintain a constant tension of the substrate.

[0035] Depending on the needs, the printed substrate may require post-processing, such as flattening, lamination, and cutting, to complete the final product. The advantages of digital inkjet printing equipment lie in its flexibility and efficiency, enabling rapid response to personalized and small-batch production demands while reducing waste and lowering costs. Furthermore, because the printing process involves no physical contact, it is suitable for substrates of various shapes and sizes.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A digital inkjet printing device, characterized in that, The device includes a frame, with a first traction roller and a second traction roller arranged on both sides of the frame. A conveying component is sleeved on the first traction roller and the second traction roller, and a substrate is arranged on the conveying component. The first traction roller and the second traction roller are driven by a first motor and a second motor running synchronously, respectively, to move the conveying component and move and position the substrate on the conveying component. A printing head is arranged on the top of the frame, and the printing head prints on the substrate.

2. The digital inkjet printing equipment according to claim 1, characterized in that, The first motor and the second motor are direct drive motors.

3. The digital inkjet printing equipment according to claim 2, characterized in that, The first motor and the second motor are direct-drive rotary motors.

4. The digital inkjet printing equipment according to claim 2, characterized in that, A first support column is provided on one side of the frame, and a first floating mounting plate is provided on the first support column. The first floating mounting plate is provided with a first mounting hole. The output shaft of the first motor passes through the first mounting hole and is connected to the extension shaft of the first traction roller. A second support column is provided on the other side of the frame, and a second floating mounting plate is provided on the second support column. The second floating mounting plate is provided with a second mounting hole. The output shaft of the second motor passes through the second mounting hole and is connected to the extension shaft of the second traction roller.

5. The digital inkjet printing equipment according to claim 4, characterized in that, The output shaft of the first motor is connected to the extension shaft of the first traction roller via a first tension sleeve, and the output shaft of the second motor is connected to the extension shaft of the second traction roller via a second tension sleeve.

6. The digital inkjet printing equipment according to claim 1, characterized in that, The first motor is equipped with a first encoder, and the second motor is equipped with a second encoder. The device includes a first driver and a second driver. The first encoder detects the operating status of the first motor and feeds it back to the first driver. The second encoder detects the operating status of the second motor and feeds it back to the second driver. The first driver and the second driver control the synchronous operation of the first motor and the second motor.

7. The digital inkjet printing equipment according to claim 1, characterized in that, The conveyor is a belt.

8. The digital inkjet printing equipment according to claim 1, characterized in that, The printhead jets digitized images or text onto the substrate.

9. The digital inkjet printing equipment according to claim 1, characterized in that, The substrate includes any one of paper, textiles, or plastics.

10. The digital inkjet printing equipment according to any one of claims 1 to 9, characterized in that, The device also includes a tension detection device for detecting the tension of the substrate during the conveying process, and adjusting the operating parameters of the first motor and the second motor according to the detection results to maintain a constant tension of the substrate.

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