A cleaning mechanism of a direct jet digital printing machine

Abstract

The application provides a cleaning mechanism of a direct jet digital printing machine, the direct jet digital printing machine comprising a rack and a conveying mesh belt, the conveying mesh belt being rotatably sleeved on the rack, the conveying mesh belt conveying a fabric along a first horizontal direction, the cleaning mechanism of the direct jet digital printing machine comprising a support, a first cleaning assembly and a second cleaning assembly, the support being reciprocally movably arranged on the rack along the first horizontal direction, the first cleaning assembly and the second cleaning assembly being arranged on the support along the first horizontal direction, the cleaning ends of the first cleaning assembly and the second cleaning assembly being in contact with the outer surface of the lower belt body of the conveying mesh belt, the first cleaning assembly being configured to preliminarily scrape off the adherents on the surface of the conveying mesh belt, the lower belt body of the conveying mesh belt being moved by the first cleaning assembly along the first horizontal direction towards the second cleaning assembly, the second cleaning assembly being configured to secondarily clean the surface of the lower belt body passing through the first cleaning assembly, so that the cleaning efficiency is improved, the frequency of shutdown maintenance is reduced, and the printing quality stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of printing machine technology, and in particular to a cleaning mechanism for a direct-to-garment digital printing machine. Background Technology

[0002] Direct-to-garment digital printing machines are devices that directly print digital patterns onto textile fabrics using inkjet technology. They offer advantages such as high printing precision, excellent color reproduction, and flexible production, and are widely used in apparel, home textiles, and personalized pattern processing. These machines typically include a conveyor belt system, printhead assembly, drying unit, and tensioning mechanism. The conveyor belt system carries and transports the fabric to be printed, ensuring its flatness and stability during the printing process.

[0003] In actual printing processes, to ensure the positional accuracy and color uniformity of the printed pattern, the fabric is usually laid on the conveyor belt with a high degree of adhesion. However, after the printing and drying processes, the surface fibers of the textile fabric are prone to adhering to the conveyor belt surface due to static electricity, adhesion, or the influence of residual ink, forming fine lint, fiber debris, or ink droplets. If these deposits are not cleaned in time, they will not only reduce the flatness of the conveyor belt surface, but also cause quality problems such as blurred patterns, ribbon contamination, or abnormal inkjet printing in subsequent printing processes.

[0004] Currently, the main method involves manually cleaning the conveyor belt periodically, which requires stopping the equipment, affecting production continuity and hindering the achievement of the automation and high-efficiency production requirements of the printing machine. Utility Model Content

[0005] The purpose of this application is to provide a cleaning mechanism for a direct-to-garment digital printing machine to solve the problem of low cleaning efficiency of residues on the conveyor belt of the direct-to-garment digital printing machine in the prior art.

[0006] To achieve this objective, the following technical solution is adopted in this application:

[0007] This application provides a cleaning mechanism for a direct-to-garment digital printing machine. The direct-to-garment digital printing machine includes a frame and a conveyor belt. The conveyor belt is rotatably mounted on the frame and configured to convey fabric along a first horizontal direction. The cleaning mechanism of the direct-to-garment digital printing machine includes a support, a first cleaning component, and a second cleaning component, wherein:

[0008] The support is movably mounted on the frame along a first horizontal direction and located below the conveyor belt. The first cleaning component and the second cleaning component are spaced apart on the support along the first horizontal direction. The cleaning ends of the first cleaning component and the second cleaning component are in contact with the outer surface of the lower belt of the conveyor belt. The first cleaning component is configured to initially scrape off the adhering substances on the surface of the conveyor belt. The lower belt of the conveyor belt moves from the first cleaning component toward the second cleaning component along the first horizontal direction. The second cleaning component is configured to perform secondary cleaning on the surface of the lower belt that has passed through the first cleaning component.

[0009] Optionally, the first cleaning component includes a brush extending in a second horizontal direction, with the brush head abutting against the outer surface of the lower belt of the conveyor belt.

[0010] Optionally, the second cleaning assembly includes a water spray assembly and a brush roller, wherein:

[0011] The brush roller is rotatably mounted on the support along the second horizontal direction, and the water spraying end of the water spraying assembly faces the brush roller. The water spraying assembly is configured to spray water onto the brush roller so that the wet brush roller removes the adhering substances from the outer surface of the lower belt.

[0012] Optionally, the cleaning mechanism of the direct-to-garment digital printing machine also includes a drive assembly. The fixed end of the drive assembly is mounted on a bracket, and the drive end of the drive assembly is connected to the brush roller. The drive assembly is configured to drive the brush roller to rotate and make the rotation direction of the brush roller opposite to the rotation direction of the conveyor belt.

[0013] Optionally, the second cleaning assembly further includes at least one absorbent roller, which is rotatably mounted on the bracket and extends along a second horizontal direction. The absorbent roller is located on the side of the brush roller away from the brush, and the top surface of the absorbent roller abuts against the lower belt. The absorbent roller is provided with absorbent material at least on its outer periphery.

[0014] Optionally, the second cleaning assembly includes two suction rollers, which are spaced apart along a first horizontal direction.

[0015] Optionally, the drive assembly includes a drive element, a driving pulley, a driven pulley, and a timing belt, wherein:

[0016] The drive end of the drive unit is connected to the drive wheel, and the driven wheel is coaxially and fixedly connected to the brush roller. The timing belt is sleeved on the drive wheel and the driven wheel. The drive unit is configured to drive the drive wheel to rotate, and then drive the brush roller to rotate through the driven wheel.

[0017] Optionally, the water spray assembly includes several nozzles, which are evenly spaced along a second horizontal direction.

[0018] Optionally, the bracket includes a mounting frame and two sets of sliding components, wherein:

[0019] The mounting frame is set as a "U" shaped structure, and the sliding components are set on both sides of the mounting frame extending along the first horizontal direction. The sliding components are configured to drive the mounting frame to slide back and forth on the bracket along the first horizontal direction.

[0020] Compared with the prior art, the cleaning mechanism of the direct-to-garment digital printing machine proposed in this application has the following advantages:

[0021] 1) By setting a reciprocating support under the frame and arranging the first cleaning component and the second cleaning component on the support along the conveying direction, a graded cleaning method of primary cleaning and secondary deep cleaning of the conveyor belt surface is realized, so that the attached material can be automatically removed during the operation of the equipment, improving cleaning efficiency, reducing the frequency of downtime maintenance, and ensuring the stability of printing quality.

[0022] 2) A water spraying component and a rotatable brush roller are set in the second cleaning component. The water spraying component sprays water onto the brush roller, and the wet brush roller further cleans the lower belt, so as to effectively remove stubborn fibers or ink spots that are difficult to remove by the first cleaning component and improve the deep cleaning effect.

[0023] 3) By setting a water-absorbing roller after the second cleaning component, the residual water after the wet brush roller is quickly removed, avoiding excessive wetness on the surface of the conveyor belt, reducing the risk of printing contamination caused by water diffusion, and improving the drying speed of the conveyor belt to ensure the continuity of the printing process.

[0024] 4) The installation frame and two sets of sliding components make it easy to pull out the first and second cleaning components from directly below the conveyor belt, which facilitates maintenance or replacement, reduces the difficulty of maintenance operations, and provides a stable and reliable installation method to ensure the positional stability of the cleaning components and the consistency of the cleaning effect during operation. Attached Figure Description

[0025] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0026] Figure 1 This is a top view of the bracket of the cleaning mechanism of the direct-to-garment digital printing machine provided in this application embodiment when it is pulled out;

[0027] Figure 2 This is a front view of the cleaning mechanism of the direct-to-garment digital printing machine provided in the embodiments of this application. Detailed Implementation

[0028] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Please see Figure 1 and Figure 2 As shown in the embodiment of this application, a cleaning mechanism for a direct-to-garment digital printing machine is provided. The direct-to-garment digital printing machine includes a frame 10 and a conveyor belt 20. The conveyor belt 20 is rotatably mounted on the frame 10 and is configured to move along a first horizontal direction ( Figure 1 The fabric is conveyed in the direction of X. The cleaning mechanism of the direct-to-garment digital printing machine includes a support 30, a first cleaning component 40, and a second cleaning component 50, wherein:

[0030] The support 30 is movably mounted on the frame 10 along the first horizontal direction and is located below the conveyor belt 20. The first cleaning component 40 and the second cleaning component 50 are spaced apart on the support 30 along the first horizontal direction. The cleaning ends of the first cleaning component 40 and the second cleaning component 50 are in contact with the outer surface of the lower belt of the conveyor belt 20. The first cleaning component 40 is configured to initially scrape off the adhering substances on the surface of the conveyor belt 20. The lower belt of the conveyor belt 20 moves from the first cleaning component 40 toward the second cleaning component 50 along the first horizontal direction. The second cleaning component 50 is configured to perform secondary cleaning on the surface of the lower belt that has passed through the first cleaning component 40.

[0031] By setting a reciprocating support 30 below the frame 10, and arranging a first cleaning component 40 and a second cleaning component 50 on the support 30 along the conveying direction, a graded cleaning method of primary cleaning and secondary deep cleaning of the surface of the conveyor belt 20 is realized, so that the attached substances can be automatically removed during the operation of the equipment, improving cleaning efficiency, reducing the frequency of downtime maintenance, and ensuring the stability of printing quality.

[0032] In one embodiment, the first cleaning component 40 includes a brush, the brush being positioned along a second horizontal direction ( Figure 1 Extending in the Y direction, the brush head abuts against the outer surface of the lower belt of the conveyor belt 20.

[0033] By setting the first cleaning component 40 as a brush and making the brush head abut against the outer surface of the lower belt, it is possible to effectively scrape and sweep away light residues such as lint and fiber debris attached to the surface of the conveyor belt 20, thereby achieving primary peeling of large-area attachments and improving the overall cleaning effect.

[0034] In one embodiment, the second cleaning assembly 50 includes a water spray assembly 51 and a brush roller 52, wherein:

[0035] The brush roller 52 is rotatably mounted on the bracket 30 along the second horizontal direction, and the water spraying end of the water spraying assembly 51 faces the brush roller 52. The water spraying assembly 51 is configured to spray water onto the brush roller 52 so that the wet brush roller 52 removes the adhering substances from the outer surface of the lower belt.

[0036] The second cleaning assembly 50 is equipped with a water spray assembly 51 and a rotatable brush roller 52. The water spray assembly 51 sprays water onto the brush roller 52, and the wet brush roller 52 further cleans the lower belt, so as to effectively remove stubborn fibers or ink spots that are difficult to remove by the first cleaning assembly 40 and improve the deep cleaning effect.

[0037] In one embodiment, the cleaning mechanism of the direct-to-garment digital printing machine further includes a drive assembly 60. The fixed end of the drive assembly 60 is disposed on the bracket 30, and the drive end of the drive assembly 60 is connected to the brush roller 52. The drive assembly 60 is configured to drive the brush roller 52 to rotate and make the rotation direction of the brush roller 52 opposite to the rotation direction of the conveyor belt 20.

[0038] The drive assembly 60 drives the brush roller 52 to rotate, and the direction of rotation of the brush roller 52 is opposite to that of the conveyor belt 20. The reverse rotation can improve the brushing efficiency, make the brush roller 52 exert a stronger force on the attached objects, and improve the cleaning efficiency and effect.

[0039] In one embodiment, the second cleaning assembly 50 further includes at least one absorbent roller 53, which is rotatably mounted on the bracket 30 and extends along a second horizontal direction. The absorbent roller 53 is located on the side of the brush roller 52 away from the brush. The top surface of the absorbent roller 53 abuts against the lower belt body, and the absorbent roller 53 is provided with absorbent material at least on its outer peripheral side.

[0040] Specifically, the absorbent material is a sponge.

[0041] By setting a water-absorbing roller 53 after the second cleaning component 50, the residual water after the wet brush roller cleaning is quickly removed, avoiding excessive wetness on the surface of the conveyor belt 20, reducing the risk of printing contamination caused by water diffusion, and improving the drying speed of the belt to ensure the continuity of the printing process.

[0042] In one embodiment, the second cleaning assembly 50 includes two absorbent rollers 53, which are spaced apart along a first horizontal direction.

[0043] By arranging double water-absorbing rollers 53, the dewatering capacity can be enhanced in stages, making the moisture absorption on the surface of the mesh belt more thorough, and further improving the drying uniformity and stability of the mesh belt.

[0044] In one embodiment, the drive assembly 60 includes a drive member (not shown), a drive pulley 61, a driven pulley 62, and a timing belt 63, wherein:

[0045] The drive end of the drive unit is connected to the drive wheel 61, and the driven wheel 62 is coaxially and fixedly connected to the brush roller 52. The timing belt 63 is sleeved on the drive wheel 61 and the driven wheel 62. The drive unit is configured to drive the drive wheel 61 to rotate, and then drive the brush roller 52 to rotate through the driven wheel 62.

[0046] Specifically, the driving component is a motor, and the motor's shaft is coaxially and fixedly connected to the drive wheel 61.

[0047] Specifically, both the driving pulley 61 and the driven pulley 62 are gears, and the timing belt 63 is a chain that is compatible with the gears.

[0048] The drive component drives the drive wheel 61 to rotate, which in turn drives the driven wheel 62 to rotate via the synchronous belt 63, thereby driving the water suction roller 53 to rotate synchronously. This provides a drive assembly 60 that is compact, has high drive efficiency, high drive precision, and low noise.

[0049] In one embodiment, the water spray assembly 51 includes a plurality of nozzles, which are evenly spaced along a second horizontal direction.

[0050] The evenly distributed nozzles ensure that the brush roller 52 receives a consistent amount of water, preventing localized over-wetting or over-drying, thus improving the uniformity of the cleaning effect and enabling the brush roller 52 to exert a stable adhesion and cleaning capability as a whole.

[0051] In one embodiment, the bracket 30 comprises a mounting frame 31 and two sets of sliding assemblies 32, wherein:

[0052] The mounting frame 31 is configured as a square frame-shaped structure, the sliding assemblies 32 are disposed on two sides of the mounting frame 31 extending along a first horizontal direction, and the sliding assemblies 32 are configured to drive the mounting frame 31 to reciprocate on the bracket 30 along the first horizontal direction.

[0053] Specifically, the sliding assembly 32 adopts a sliding pair composed of a slide rail and a sliding block.

[0054] Through the cooperation of the mounting frame 31 and the two sets of sliding assemblies 32, it is convenient to pull the first cleaning assembly 40 and the second cleaning assembly 50 out from directly below the conveyor mesh belt 20, thereby facilitating maintenance or replacement, reducing the difficulty of maintenance operation, and meanwhile providing a stable and reliable mounting mode to ensure the position stability and consistent cleaning effect of the cleaning assemblies during operation.

[0055] The working principle of the cleaning mechanism for the above direct-injection digital printing machine is as follows:

[0056] S1, the bracket 30 moves along the first horizontal direction to a preset position below the conveyor mesh belt 20, so that the cleaning ends of the first cleaning assembly 40 and the second cleaning assembly 50 are in contact with the outer surface of the lower belt body of the conveyor mesh belt 20;

[0057] S2, the conveyor mesh belt 20 rotates, and the first cleaning assembly 40 sweeps away loose attachments such as surface fluff and fiber scraps;

[0058] S3, the driving assembly 60 drives the brush roller 52 to rotate in a reverse direction, and the water spray assembly 51 sprays water toward the brush roller 52, so as to reversely rub and adhere and remove stubborn attachments such as residual ink spots and fine fibers;

[0059] S4, the cleaned mesh belt passes through the water absorption roller 52, and the water-absorbing material absorbs residual moisture on the surface to ensure the mesh belt is dry.

[0060] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Various changes and modifications may be made to the present application without departing from the spirit and scope of the present application, and all such changes and modifications fall within the scope of the present application claimed for protection. The claimed scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cleaning mechanism for a direct-to-garment digital printing machine, the direct-to-garment digital printing machine comprising a frame and a conveyor belt, the conveyor belt being rotatably mounted on the frame, the conveyor belt being configured to convey fabric along a first horizontal direction, characterized in that, The cleaning mechanism of the direct-to-garment digital printing machine includes a support frame, a first cleaning component, and a second cleaning component, wherein: The support is movably mounted on the frame along the first horizontal direction and located below the conveyor belt. The first cleaning component and the second cleaning component are spaced apart on the support along the first horizontal direction. The cleaning ends of the first cleaning component and the second cleaning component are in contact with the outer surface of the lower belt body of the conveyor belt. The first cleaning component is configured to initially scrape off the adhering substances on the surface of the conveyor belt. The lower belt body of the conveyor belt moves from the first cleaning component toward the second cleaning component along the first horizontal direction. The second cleaning component is configured to perform secondary cleaning on the surface of the lower belt body that has passed through the first cleaning component.

2. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 1, characterized in that, The first cleaning component includes a brush that extends along a second horizontal direction, and the brush head abuts against the outer surface of the lower belt of the conveyor belt.

3. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 2, characterized in that, The second cleaning assembly includes a water spray assembly and a brush roller, wherein: The brush roller is rotatably mounted on the bracket along the second horizontal direction, and the water spraying end of the water spraying assembly faces the brush roller. The water spraying assembly is configured to spray water onto the brush roller so that the wet brush roller can remove the adhering material from the outer surface of the lower belt.

4. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 3, characterized in that, The cleaning mechanism of the direct-to-garment digital printing machine also includes a drive assembly. The fixed end of the drive assembly is disposed on the bracket, and the drive end of the drive assembly is connected to the brush roller. The drive assembly is configured to drive the brush roller to rotate and make the rotation direction of the brush roller opposite to the rotation direction of the conveyor belt.

5. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 3, characterized in that, The second cleaning assembly further includes at least one water-absorbing roller, which is rotatably mounted on the bracket and extends along the second horizontal direction. The water-absorbing roller is located on the side of the brush roller away from the brush. The top surface of the water-absorbing roller abuts against the lower belt body. The water-absorbing roller is provided with water-absorbing material at least on its outer peripheral side.

6. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 5, characterized in that, The second cleaning component includes two absorbent rollers, which are spaced apart along the first horizontal direction.

7. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 4, characterized in that, The drive assembly includes a drive component, a driving pulley, a driven pulley, and a timing belt, wherein: The driving end of the driving member is connected to the driving wheel, the driven wheel is coaxially and fixedly connected to the brush roller, the timing belt is sleeved on the driving wheel and the driven wheel, and the driving member is configured to drive the driving wheel to rotate, thereby driving the brush roller to rotate through the driven wheel.

8. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 3, characterized in that, The water spray assembly includes a plurality of nozzles, which are evenly spaced along the second horizontal direction.

9. The cleaning mechanism of the direct-to-garment digital printing machine according to claim 1, characterized in that, The bracket includes a mounting frame and two sets of sliding components, wherein: The mounting frame is configured as a "U" shaped structure, and the sliding components are disposed on both sides of the mounting frame extending along the first horizontal direction. The sliding components are configured to drive the mounting frame to slide back and forth on the bracket along the first horizontal direction.

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