Feeding structure of ink jet printing machine and ink jet printing machine

Abstract

The utility model provides a feeding structure of an ink-jet printing machine and the ink-jet printing machine, and relates to the technical field of ink-jet printing machine structures, the feeding structure of the ink-jet printing machine comprises a main body, a conveyor belt, a detection assembly and a controller; an ink jet assembly is arranged in the main body; the conveying belt is provided with a starting end and a feeding end, the starting end is located outside the main body, the feeding end is located below the ink jet assembly, and the conveying belt is provided with a bearing surface for attaching a base material; the multiple detection assemblies are arranged on one side of the conveying belt and can detect the surface of the base material for multiple times, multiple detection lines can be formed by the multiple detection assemblies, and the detection accuracy and stability are higher.

Description

Technical Field

[0001] This utility model relates to the technical field of inkjet printing machine structure, specifically to an inkjet printing machine feeding structure and an inkjet printing machine. Background Technology

[0002] An inkjet printer is a device that uses inkjet printing technology to print on textiles or other materials. It is widely used in clothing, home furnishings, advertising materials, and other fields, and has advantages such as high efficiency, flexibility, and environmental friendliness.

[0003] In existing inkjet printing machines, substrates (such as fabrics and paper) are attached inside the machine and moved by a conveyor belt or roller system to ensure that the ink is evenly distributed in the desired locations. After inkjet printing, the substrate usually needs to undergo drying and curing to ensure that the ink adheres firmly to the substrate. This can be achieved through methods such as hot air drying, infrared heating, or ultraviolet curing.

[0004] However, during the process of the substrate being conveyed into the inkjet printer, the substrate adheres to the conveyor belt. Since the distance between the nozzles in the inkjet printer and the conveyor belt is extremely small, if the substrate is not adhered evenly, has protrusions on the surface, or has foreign objects on the surface, the nozzles are easily damaged due to collision. Utility Model Content

[0005] The purpose of this utility model is to provide a feeding structure for an inkjet printer, so as to alleviate the technical problem in the prior art where uneven adhesion of the substrate, protrusions on the surface, or foreign objects on the surface can easily lead to nozzle damage due to collision.

[0006] This utility model provides a feeding structure for an inkjet printer, including: a main body, a conveyor belt, a detection component, and a controller; the main body houses the inkjet component; the conveyor belt has a starting end and a feeding end, the starting end being located outside the main body and the feeding end being located below the inkjet component, and the conveyor belt having a bearing surface for attaching a substrate; there are at least three detection components, which are arranged on one side of the conveyor belt, and the detection direction of each detection component is facing the conveyor belt and parallel to the bearing surface of the conveyor belt; the controller is electrically connected to the inkjet component, the conveyor belt, and the detection components.

[0007] Furthermore, the plurality of detection components are spaced apart from the starting end to the feeding end, and the detection directions of the plurality of detection components are parallel to each other.

[0008] Furthermore, there are three detection components; the three detection components are a first detection component, a second detection component, and a third detection component; the first detection component is located near the starting end, and the distance between the first detection component and the inkjet component is greater than or equal to 1870mm; the second detection component and the third detection component are located between the first detection component and the feed end.

[0009] Furthermore, the distance between the second detection component and the inkjet component is greater than or equal to 500 mm.

[0010] Furthermore, the distance between the third detection component and the inkjet component is greater than or equal to 70 mm; the third detection component is located between the second detection component and the feed end.

[0011] Furthermore, the inkjet assembly includes a height adjustment component and a printhead; the height adjustment component is disposed on the main body and has a movable end; the printhead is tractively connected to the movable end.

[0012] Furthermore, the detection component includes a laser emitter and a laser receiver; the laser emitter and the laser receiver are disposed opposite each other on both sides of the conveyor belt.

[0013] Furthermore, the distance between the laser emitter and the laser receiver is greater than or equal to 2200 mm.

[0014] Furthermore, the distance between the detection position of the detection component and the top surface of the conveyor belt is 0.1 mm to 8 mm.

[0015] The purpose of this utility model is also to provide an inkjet printer, including the provided inkjet printer feeding structure.

[0016] Beneficial effects:

[0017] The inkjet printing machine feeding structure provided by this utility model includes a main body, a conveyor belt, a detection component, and a controller. The inkjet component is installed inside the main body. The conveyor belt has a starting end and a feeding end. The starting end is located outside the main body, and the feeding end is located below the inkjet component. The conveyor belt has a bearing surface for attaching a substrate. There are at least three detection components, which are arranged on one side of the conveyor belt. The detection direction of the detection components is all facing the conveyor belt and parallel to the bearing surface of the conveyor belt. The controller is electrically connected to the inkjet component, the conveyor belt, and the detection components.

[0018] Specifically, the inkjet printer feeding structure provided by this utility model can perform multiple inspections on the surface of the substrate through multiple detection components. When the substrate is far from the inkjet assembly, the controller can be triggered to drive the conveyor belt to stop slowly, avoiding misalignment between the substrate and the conveyor belt due to the substrate stopping too quickly, which would cause the substrate to wrinkle or curl up and become unusable. When the substrate is close to the inkjet assembly and the slow stopping distance is insufficient, the controller can be triggered to perform an emergency stop action, preventing the substrate from colliding with the inkjet assembly after entering the main body and causing damage to the inkjet assembly. When the substrate is extremely close to the inkjet assembly and the emergency stop distance is insufficient, the controller can be triggered to drive the inkjet assembly to move, thereby avoiding collision and damage to the inkjet assembly. Furthermore, when a single detection component cannot be used, multiple detection components can form multiple detection lines, resulting in higher accuracy and stability of the detection. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the feeding structure of the inkjet printer provided in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of an inkjet printer provided in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram showing the positional relationship between the laser emitter and the support in the feeding structure of the inkjet printer provided in this embodiment of the utility model.

[0023] icon:

[0024] 100 - Main body; 200 - Conveyor belt; 300 - Detection component; 310 - First detection component; 320 - Second detection component; 330 - Third detection component; 340 - Support; 341 - Slide groove; 342 - Slider; 343 - Positioning screw; 350 - Laser emitter. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] To facilitate understanding of this embodiment, the application scenarios and design concepts of this application embodiment will be briefly introduced below.

[0032] During printing, an inkjet printer sprays ink into the substrate in the form of tiny droplets through a printhead. The printhead typically consists of multiple nozzles, each of which can precisely control the amount and position of ink sprayed.

[0033] To ensure sufficient precision in printing effect and quality, the nozzles in inkjet printers are small in size and the distance between the nozzles and the substrate is extremely small. If there are protrusions or debris on the substrate, they are very easy to scratch and collide with the nozzles. Furthermore, the nozzles are expensive and are easily damaged when they collide with the items.

[0034] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0035] See Figures 1 to 3 The inkjet printer feeding structure provided in this embodiment includes a main body 100, a conveyor belt 200, a detection component 300, and a controller.

[0036] The main body 100 houses an inkjet assembly. The conveyor belt 200 has a starting end and an infeed end; the starting end is located outside the main body 100, and the infeed end is located below the inkjet assembly. The conveyor belt 200 has a bearing surface for attaching a substrate. At least three detection components 300 are arranged on one side of the conveyor belt 200, with their detection directions all facing the conveyor belt 200 and parallel to its bearing surface. The controller is electrically connected to the inkjet assembly, the conveyor belt 200, and the detection components 300.

[0037] Specifically, the conveyor belt 200 of the inkjet printer feeding structure provided in this embodiment is provided with a plurality of detection components 300 on one side. The plurality of detection components 300 can perform at least three detections on the surface of the substrate, thereby ensuring that when there are protrusions or foreign objects on the surface of the substrate, they can be detected in time and the risks can be avoided through a preset scheme.

[0038] When the substrate is far from the inkjet assembly, the detection component 300, which is far from the inkjet assembly, detects the substrate on the conveyor belt 200. When it detects that there are protrusions or foreign objects on the surface of the substrate, it can trigger the controller to drive the conveyor belt 200 to stop slowly, so as to avoid the substrate stopping too quickly and causing misalignment between the substrate and the conveyor belt 200, which would make the substrate unusable due to wrinkles or curling.

[0039] If the detection component 300 detects a protrusion or debris on the surface of the substrate when the substrate is close to the inkjet component, and the slow stopping distance is insufficient, it can trigger the controller to perform an emergency stop action to prevent the substrate from entering the main body 100 and colliding with the inkjet component, which could damage the inkjet component.

[0040] If the detection component 300 detects a protrusion or debris on the substrate surface when the substrate is extremely close to the inkjet component, and the emergency stop distance is insufficient to avoid the inkjet component colliding with the protrusion or debris, the controller can be triggered to drive the inkjet component to move upward to avoid the collision and prevent damage to the inkjet component.

[0041] Furthermore, when a single detection component 300 is unavailable, multiple detection components 300 can form multiple detection lines, resulting in higher accuracy and stability of the detection.

[0042] In this embodiment, multiple detection components 300 are spaced apart from the starting end to the feeding end, and the detection directions of the multiple detection components 300 are parallel to each other.

[0043] The parallel detection directions of multiple detection components 300 enable multiple detections of the surface of the substrate on the conveyor belt 200, with a large detection range and easy determination of the specific location of protrusions and debris on the substrate surface.

[0044] Specifically, in this embodiment, there are three detection components 300. The three detection components 300 are the first detection component 310, the second detection component 320, and the third detection component 330.

[0045] The first detection component 310 is located near the starting end, and the distance between the first detection component 310 and the inkjet component is greater than or equal to 1870 mm. The second detection component 320 and the third detection component 330 are located between the first detection component 310 and the feed end.

[0046] Specifically, in this embodiment, the first detection component 310, the second detection component 320, and the third detection component 330 are arranged at intervals from far to near for the inkjet assembly, so as to realize three detections of the far point, the middle point, and the near point of the substrate on the conveyor belt 200.

[0047] The first detection component 310 is positioned at a distance from the inkjet assembly. When the first detection component 310 detects a protrusion or foreign object on the surface of the substrate, it triggers the controller to drive the conveyor belt 200 to a slow stop. To prevent the protrusion or foreign object from contacting the inkjet assembly during the slow stop, a buffer distance sufficient to allow the conveyor belt 200 to stop completely needs to be reserved. Multiple tests have shown that when the buffer distance is greater than or equal to 1870 mm, the conveyor belt carrying the substrate can stop completely before contacting the inkjet assembly. Specifically, in this embodiment, the distance between the first detection component 310 and the inkjet assembly is 1870 mm. This distance ensures that the buffer distance is sufficient for the conveyor belt 200 to stop completely without occupying excessive space.

[0048] Furthermore, in this embodiment, the distance between the second detection component 320 and the inkjet component is greater than or equal to 500mm.

[0049] Specifically, the second detection component 320 is located between the first detection component 310 and the inkjet component, and the second detection component 320 can perform secondary detection on the substrate. When the first detection component 310 is damaged or when debris falls onto the surface of the substrate after passing the first detection component 310, the second detection component 320 can promptly detect the abnormality on the substrate surface and promptly trigger the controller to drive the conveyor belt 200 to perform an emergency stop action, so that the conveyor belt 200 can stop quickly and prevent the substrate with abnormal surface from continuing to move forward and coming into contact with the inkjet component, which would cause damage to the inkjet component.

[0050] Through multiple experiments, it was found that when the conveyor belt 200 carrying the substrate comes to a sudden stop from a moving state to a complete stop, the forward distance of the conveyor belt 200 is less than 500mm. Therefore, the distance between the second detection component 320 and the inkjet component must be greater than or equal to 500mm to ensure that the conveyor belt 200 carrying the substrate stops moving before any protrusions or debris on the substrate surface collide with the inkjet component, thereby protecting the inkjet component. In this embodiment, the distance between the conveyor belt 200 and the inkjet component is specifically 500mm.

[0051] In this embodiment, the distance between the third detection component 330 and the inkjet component is greater than or equal to 70 mm. The third detection component 330 is located between the second detection component 320 and the feed end.

[0052] Similarly, the third detection component 330 is located between the second detection component 320 and the inkjet component. The second detection component 320 can perform secondary detection on the substrate. When the first detection component 310 is damaged or when debris falls onto the surface of the substrate after passing the first detection component 310, the second detection component 320 can detect the abnormality on the substrate surface in a timely manner and promptly trigger the controller to drive the conveyor belt 200 to perform an emergency stop action, so that the conveyor belt 200 can stop quickly and prevent the substrate with abnormal surface from continuing to move forward and coming into contact with the inkjet component, which would cause damage to the inkjet component.

[0053] Since the conveyor belt 200 carrying the substrate needs to travel a relatively long distance to come to a complete stop from a moving state, if a protrusion or foreign object is detected on the surface of the substrate when it is less than 500 mm away, the inkjet assembly cannot be prevented from collapsing through the emergency stop operation. Therefore, when the third detection component 330 detects a protrusion or foreign object on the surface of the substrate, the controller drives the inkjet assembly to move upward to avoid it, thereby preventing damage to the inkjet assembly.

[0054] The inkjet assembly requires a certain amount of time to move upwards. Tests have shown that the time it takes for the inkjet assembly to move upwards to a point where it can effectively avoid protrusions or foreign objects on the substrate surface is measured. During this time, the conveyor belt 200 moves a distance of 65mm. To ensure that the inkjet assembly is not collided with protrusions or foreign objects on the substrate surface, the distance between the third detection component 330 and the inkjet assembly must be greater than or equal to 70mm. Specifically, in this embodiment, the distance between the third detection component 330 and the inkjet assembly is 70mm.

[0055] In this embodiment, the inkjet assembly includes a height adjustment member and a printhead. The height adjustment member is located on the main body 100 and has a movable end. The printhead is tractively connected to the movable end.

[0056] Specifically, in this embodiment, the height adjustment component is a drive structure consisting of a drive motor and a lead screw. The nozzle is connected to the moving end of the lead screw so that the drive motor can drive the nozzle to move vertically through the lead screw, thereby adjusting the height of the nozzle to achieve the upward movement of the nozzle to avoid obstacles.

[0057] In this embodiment, the detection component 300 includes a laser emitter 350 and a laser receiver. The laser emitter 350 and the laser receiver are disposed opposite each other on both sides of the conveyor belt 200.

[0058] Specifically, the laser emitter 350 is positioned opposite to the laser receiver, and the emitted laser is parallel to the conveyor belt 200. The gap between the height of the laser and the surface of the substrate is extremely small, so as to achieve accurate detection of the surface of the substrate.

[0059] The distance between the laser emitter 350 and the laser receiver is greater than or equal to 2200mm.

[0060] Specifically, in this embodiment, the distance between the laser emitter 350 and the laser receiver is 2292.5 mm. This distance is compatible with the width of the conveyor belt 200 of the inkjet printer, enabling comprehensive inspection of the surface of the substrate.

[0061] It should be noted that the distance between the laser emitter 350 and the laser receiver should be adapted to the width of the conveyor belt 200 in order to achieve comprehensive inspection of the substrate on the surface of the conveyor belt 200.

[0062] In this embodiment, the distance between the detection height position of the detection component 300 and the top surface of the conveyor belt 200 is 0.1 mm to 8 mm.

[0063] Combination Figure 3Specifically, in this embodiment, both the laser emitter 350 and the laser receiver are mounted on the bracket 340, and the bracket 340 is provided with a vertically extending groove 341. A slider 342 adapted to the groove 341 is provided in the groove 341. The laser emitter 350 and the laser receiver are mounted on the slider 342 to achieve sliding cooperation with the groove 341, so as to adjust the height of the laser emitter 350 and the laser receiver.

[0064] Furthermore, in this embodiment, a positioning screw 343 is provided on the slider 342. The position of the slider 342 in the groove 341 can be fixed by tightening the positioning screw 343, thereby fixing the position of the laser emitter 350 and the laser receiver. This allows the height of the detection laser formed by the laser emitter 350 and the laser receiver to be in contact with the surface of the substrate, thus achieving accurate detection of the surface of the substrate.

[0065] This structure allows for adjustment of the height of the detection laser, enabling the inkjet printer feeding structure provided in this embodiment to be suitable for detecting the surfaces of substrates with varying thicknesses.

[0066] See Figure 2 The inkjet printer provided in this embodiment includes the provided inkjet printer feeding structure.

[0067] Specifically, in the inkjet printer provided in this embodiment, the inkjet printer feeding structure is located at the front end of the inkjet printer and is used for conveying and inspecting the substrate. Multiple inspection components 300 are provided on one side of the conveyor belt 200 of the inkjet printer feeding structure. These multiple inspection components 300 can perform at least three inspections on the surface of the substrate, thereby ensuring that any protrusions or impurities on the surface of the substrate can be detected in a timely manner and that risks can be avoided through a preset scheme.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A feeding structure for an inkjet printer, characterized in that, include: The main body (100), conveyor belt (200), detection component (300), and controller; An inkjet assembly is provided inside the main body (100); The conveyor belt (200) has a starting end and a feeding end, the starting end being located outside the body (100) and the feeding end being located below the inkjet assembly, and the conveyor belt (200) having a bearing surface for attaching a substrate; There are at least three detection components (300), and multiple detection components (300) are disposed on one side of the conveyor belt (200). The detection direction of each detection component (300) is towards the conveyor belt (200) and parallel to the bearing surface of the conveyor belt (200). The controller is electrically connected to the inkjet assembly, the conveyor belt (200), and the detection assembly (300).

2. The feeding structure of the inkjet printer according to claim 1, characterized in that, The plurality of detection components (300) are spaced apart from the starting end to the feeding end and the detection directions of the plurality of detection components (300) are parallel to each other.

3. The feeding structure of the inkjet printing machine according to claim 2, characterized in that, The detection component (300) has three parts; The three detection components (300) are a first detection component (310), a second detection component (320), and a third detection component (330); The first detection component (310) is located near the starting end, and the distance between the first detection component (310) and the nozzle is greater than or equal to 1870 mm; The second detection component (320) and the third detection component (330) are disposed between the first detection component (310) and the feed end.

4. The feeding structure of the inkjet printer according to claim 3, characterized in that, The distance between the second detection component (320) and the inkjet component is greater than or equal to 500 mm.

5. The feeding structure of the inkjet printer according to claim 4, characterized in that, The distance between the third detection component (330) and the inkjet component is greater than or equal to 70 mm; The third detection component (330) is located between the second detection component (320) and the feed end.

6. The feeding structure of the inkjet printing machine according to claim 1, characterized in that, The inkjet assembly includes a height adjustment element and a printhead; The height adjustment member is disposed on the main body (100), and the height adjustment member has a movable end; The nozzle is connected to the moving end via a transmission.

7. The feeding structure of the inkjet printer according to claim 1, characterized in that, The detection component (300) includes a laser emitter (350) and a laser receiver; The laser emitter (350) and the laser receiver are disposed opposite each other on both sides of the conveyor belt (200).

8. The feeding structure of the inkjet printing machine according to claim 7, characterized in that, The distance between the laser emitter (350) and the laser receiver is greater than or equal to 2200 mm.

9. The feeding structure of the inkjet printer according to claim 1, characterized in that, The distance between the detection position of the detection component (300) and the top surface of the conveyor belt (200) is 0.1 mm to 8 mm.

10. An inkjet printing machine, characterized in that, Includes the inkjet printer feeding structure as described in any one of claims 1-9.

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