A digital printing machine

Abstract

The utility model discloses a digital printing machine, including frame, a plurality of table board subassembly that arranges in order along left and right directions, front -end processing subassembly, press and print subassembly and are arranged in order along front and back directions, table board subassembly includes a plurality of table board for bearing fabric, and a plurality of table board evenly spaced arrangement along left and right directions, front -end processing subassembly is used for to the fabric on the table board spraying front -end processing liquid, press and print subassembly includes a plurality of press and print board that correspond to a plurality of table board in each table board subassembly, and press and print board can move up and down, to press platform board's fabric and to fabric heating, and press and print board subassembly has temperature control unit for control press and print board has corresponding first temperature of spraying front -end processing liquid fabric and corresponding second temperature of spraying color ink fabric, the utility model has the beneficial effect in, can guarantee printing quality while reducing printing equipment's space occupation.

Description

Technical Field

[0001] This utility model relates to a digital printing machine and belongs to the field of printing equipment technology. Background Technology

[0002] Digital printing technology, a significant breakthrough in the modern textile printing and dyeing industry, is gradually transforming the traditional printing industry due to its advantages such as eliminating the need for plate making, flexibility, efficiency, and adaptability to small-batch, multi-variety production. This technology involves digitally inputting patterns into a computer, processing them, and then directly spraying specialized dyes onto the fabric through printheads, greatly shortening the production process.

[0003] In existing technologies, fabric printing processes typically require multiple independent steps, such as pretreatment, printing, and color fixing. The application of pretreatment solution and the color fixing process after printing are often completed in steps on different equipment or workstations, which requires the fabric to be moved and positioned multiple times. This not only increases the length and floor space of the production line, but may also lead to product quality problems caused by positioning errors, such as inaccurate registration and blurry patterns. Utility Model Content

[0004] The purpose of this invention is to provide a digital printing machine that can reduce the space occupied by printing equipment while ensuring printing quality.

[0005] This utility model is achieved through the following technical solution.

[0006] A digital printing machine includes a frame, a plurality of table assemblies arranged sequentially in the left-right direction, a pretreatment assembly, a heat pressing assembly, and a printing assembly arranged sequentially in the front-back direction.

[0007] The table assembly includes multiple tables for supporting fabric, and the multiple tables are evenly spaced in the left-right direction; the pretreatment assembly is used to spray a pretreatment liquid onto the fabric located on the table; the heat pressing assembly includes multiple heat pressing plates corresponding one-to-one with the multiple tables in each table assembly, and the heat pressing plates can move up and down to flatten the fabric on the table and heat the fabric; the printing assembly is used to spray colored ink onto the fabric located on the table to print a pattern.

[0008] It also includes multiple first drive components that correspond one-to-one and are used to drive the table assembly to slide or lock in the front-to-back direction, and three second drive components that are used to drive the pre-treatment assembly, the heat pressing assembly and the printing assembly to slide or lock in the left-to-right direction, respectively.

[0009] The fabric after spraying the pretreatment liquid and the fabric after spraying the color ink share the same pressing assembly; the pressing plate assembly has a temperature control unit for controlling the pressing plate to have a first temperature corresponding to the fabric after spraying the pretreatment liquid and a second temperature corresponding to the fabric after spraying the color ink.

[0010] As a further improvement of this utility model, the heat pressing assembly also includes a plurality of driving cylinders corresponding one-to-one with the heat pressing plate. The plurality of driving cylinders are slidably connected to the frame through a mounting bracket. The plurality of driving cylinders are arranged at intervals in the left-right direction. One end of the driving cylinder is fixed to the mounting bracket, and the other end is used to drive the corresponding heat pressing plate to rise and fall vertically.

[0011] As a further improvement of this utility model, the frame is provided with a first slide rail extending in the left-right direction corresponding to the mounting bracket, and the mounting bracket is provided with at least one first sliding member corresponding to each first slide rail, the first sliding member being slidably connected to the first slide rail.

[0012] As a further improvement of this utility model, the frame has three mounting beams for mounting the pretreatment component, the heat pressing component, and the printing component, respectively. The mounting beams extend in the left-right direction. The first slide rail is located on one side of the middle mounting beam in the front-back direction. The first sliding member has a sliding groove extending in the left-right direction, and the first slide rail is slidably embedded in the slide rail. The groove walls on both the upper and lower sides of the groove are partially recessed inward to form a limiting groove. The first slide rail has limiting portions on both sides in the up-down direction corresponding to the limiting groove. The limiting portions are slidably embedded in the limiting groove to restrict the first sliding member from disengaging from the first slide rail in the up-down direction.

[0013] As a further improvement of this utility model, the first drive assembly includes a first drive motor and a ball screw driven by the first drive motor to rotate. The ball screw is connected to the corresponding platform assembly, and the rotation of the ball screw is used to drive the platform assembly to move linearly in the front-back direction.

[0014] As a further improvement of this utility model, the second drive assembly includes a second drive motor, a rotating shaft driven by the second drive motor, a drive gear mounted on the rotating shaft, and a rack meshing with the drive gear. The rack is fixedly mounted on the frame and extends in the left-right direction. The second drive motor is mounted on the mounting bracket.

[0015] As a further improvement of this utility model, the platform assembly further includes a mounting plate extending in the left-right direction and a plurality of support members disposed on the mounting plate, the plurality of support members being arranged at intervals in the left-right direction, and the platform being disposed on the support members; the mounting plate is slidably connected to the frame in the front-back direction.

[0016] As a further improvement of this utility model, the platform assembly further includes a mounting plate extending in the left-right direction and a plurality of support members disposed on the mounting plate, the plurality of support members being arranged at intervals in the left-right direction, and the platform being disposed on the support members; the mounting plate is slidably disposed on the frame in the front-back direction.

[0017] As a further improvement of this utility model, the frame is provided with at least one second slide rail extending in the front-back direction for each of the mounting plates, and the mounting plate is provided with at least one second sliding member for each of the second slide rails, the second sliding member being slidably connected to the second slide rail.

[0018] As a further improvement of this utility model, the temperature control unit includes a heating element embedded inside the pressing plate.

[0019] As a further improvement of this utility model, the gap between each two said platform assemblies is the same in the left-right direction.

[0020] The beneficial effects of this utility model are:

[0021] 1. The fabric after pretreatment and the fabric after ink spraying share the same heat press assembly. Therefore, there is no need to equip the pretreatment and color fixing processes with separate heating units, reducing the manufacturing cost of the equipment, as well as its size and floor space, resulting in a more compact equipment layout. The temperature control unit can precisely control the heat press plate at two different working temperatures. The first temperature is for the fabric that has just been sprayed with pretreatment liquid, used to dry and fix the liquid and prevent ink from seeping during subsequent printing. The second temperature is for the fabric that has been printed, ensuring that the ink is fully fixed on the fabric, ensuring the color fastness and vibrancy of the pattern, and guaranteeing the printing quality.

[0022] 2. The frame is equipped with multiple table assemblies arranged laterally in the left and right directions. Three second drive assemblies are used to adjust the positions of the pretreatment assembly, the heat pressing assembly and the printing assembly in the left and right directions, respectively. This enables parallel operation of fabrics on multiple table assemblies, thereby reducing equipment idle time, shortening the processing cycle of a single product and improving printing efficiency. Attached Figure Description

[0023] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a digital printing machine according to the present invention;

[0025] Figure 2 for Figure 1 A top view of a digital printing machine;

[0026] Figure 3 A structural diagram showing the assembly of the heat pressing components, mounting brackets, and mounting beams;

[0027] Figure 4 A schematic diagram showing the structure in which the heat pressing component, mounting bracket, and second drive component work together;

[0028] Figure 5 for Figure 4 Side view of the middle structure;

[0029] Figure 6 This is a schematic diagram of the structure in which the first slide rail and the first sliding member mate.

[0030] Figure 7 A structural diagram showing the assembly of the frame, the first drive assembly, and the platform assembly;

[0031] Figure 8 This is a structural diagram of the platform assembly. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0033] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0034] This embodiment provides a digital printing machine, see reference. Figure 1-8 The system includes a frame 1, multiple table assemblies 2 arranged sequentially in the left-right direction, a pretreatment assembly 3 arranged sequentially in the front-back direction, a heat pressing assembly 4, and a printing assembly 5. Each table assembly 2 includes multiple table plates 21 for carrying fabric, and the multiple table plates 21 are evenly spaced in the left-right direction. The pretreatment assembly 3 is used to spray pretreatment liquid onto the fabric located on the table plate 21. The heat pressing assembly 4 includes multiple heat pressing plates 41 that correspond one-to-one with the multiple table plates 21 in each table assembly 2. The heat pressing plates 41 can move up and down to press the fabric on the table plate 21 and heat the fabric. The printing assembly is used to spray colored ink onto the fabric located on the table plate 21 to print a pattern.

[0035] The digital printing machine also includes a first drive assembly 6 for driving the table assembly 2 to slide or lock in the left and right direction, and three second drive assemblies 7 for driving the pretreatment assembly 3, the heat pressing assembly 4 and the printing assembly 5 to slide or lock in the left and right direction, respectively.

[0036] The fabric after spraying the pretreatment liquid and the fabric after spraying the color ink share the same heat pressing component 4. The heat pressing component 4 has a temperature control unit for controlling the heat pressing plate 41 to have a first temperature corresponding to the fabric after spraying the pretreatment liquid and a second temperature corresponding to the fabric after spraying the color ink.

[0037] During printing, the fabric is fixed on the printing plate 21. The first drive assembly 6 pushes the printing plate 21 to move back and forth, passing through the pretreatment, heat pressing, and printing stations in sequence. After the pretreatment liquid is sprayed, multiple heat pressing plates 41 in the heat pressing assembly 4 descend to flatten the fabric and activate the treatment liquid at a first temperature. After printing, multiple heat pressing plates 41 descend again to press the fabric tightly for curing the ink at a second temperature. During this process, the second drive assembly 7 synchronously controls the pretreatment assembly 3 and the printing assembly to move left and right, ensuring they are precisely aligned with the printing plate 21 at different positions in the printing plate assembly 2.

[0038] In this embodiment, the fabric after pretreatment and the fabric after ink spraying share the same heat press assembly 4. Therefore, it is not necessary to equip the pretreatment and color fixing processes with separate heating units, which reduces the manufacturing cost of the equipment and also reduces the size and floor space of the equipment, making the equipment layout more compact. The temperature control unit can precisely control the heat press plate 41 to two different working temperatures. The first temperature is for the fabric that has just been sprayed with pretreatment liquid, used to dry and fix the treatment liquid and prevent the ink from bleeding during subsequent printing. The second temperature is for the fabric that has been printed, so that the ink can be fully fixed on the fabric, ensuring the color fastness and brightness of the pattern and guaranteeing the printing quality.

[0039] Furthermore, the frame 1 is equipped with multiple table assemblies 2 arranged laterally in the left-right direction. Three second drive assemblies 7 are used to adjust the positions of the pretreatment assembly 3, the heat pressing assembly 4, and the printing assembly 5 in the left-right direction, enabling parallel operation of fabrics on multiple table assemblies 2. For example, while the fabric on one table assembly 2 is being printed, another table assembly 2 can simultaneously perform pretreatment liquid spraying, and the fabric on the table assembly 2 that has finished printing can undergo heat pressing and color fixing processes. This reduces equipment idle time, shortens the processing cycle of a single product, and improves printing efficiency.

[0040] It should be noted that the left-right and up-down directions in this embodiment are as follows: Figure 2 As shown by the arrow in the image.

[0041] For a more detailed description of the heat pressing component 4, please refer to... Figure 3The heat pressing assembly 4 also includes multiple drive cylinders 42 corresponding to heat pressing plates 41. These drive cylinders 42 are slidably connected to the frame 1 via mounting brackets 8. One end of each drive cylinder 42 is fixed to the mounting bracket 8, and the other end drives the corresponding heat pressing plate 41 to move vertically up and down. After the fabric has been sprayed with pretreatment liquid on the table 21, the corresponding heat pressing plate 41 descends and presses the fabric under the action of the drive cylinders 42. Furthermore, by controlling the extension and retraction of the drive cylinders 42, the lifting height of the heat pressing plate 41 can be controlled to accommodate fabrics of different thicknesses.

[0042] In this embodiment, the temperature control unit includes a heating element embedded inside the pressing plate 41 and a control module for adjusting the temperature. The heating element can be a heating rod or an electric heating wire. The control module can be implemented by combining a PID temperature controller and a thermocouple sensor, so that the same pressing plate 41 can switch working temperatures in different processes.

[0043] Furthermore, refer to Figure 3 The frame 1 is provided with a first slide rail 12 extending in the left and right direction corresponding to the mounting bracket 8. The mounting bracket 8 is provided with at least one first sliding member 13 corresponding to the first slide rail 12. The first sliding member 13 is slidably connected to the first slide rail 12. The sliding cooperation between the first sliding member 13 and the first slide rail 12 makes the mounting bracket 8 move smoothly along a preset trajectory when moving left and right.

[0044] More specifically, refer to Figure 4 and Figure 5 The frame 1 has three mounting beams 11 for mounting the pretreatment component 3, the heat pressing component 4, and the printing component 5, respectively. The mounting beams 11 extend in the left-right direction. A first slide rail 12 is located on one side of the middle mounting beam 11 in the front-back direction. A first sliding member 13 has a sliding groove 131 extending in the left-right direction. The first slide rail 12 is block-shaped and slidably embedded in the slide rail. The sliding groove 131 can restrict the movement direction of the first slide rail 12. Furthermore, referring to… Figure 6 The upper and lower sides of the groove 131 are partially recessed to form a limiting groove 132. The first slide rail 12 has a limiting part 121 corresponding to the limiting groove 132 on both sides in the vertical direction. The limiting part 121 is slidably embedded in the limiting groove 132. During the movement, the limiting part 121 is always embedded in the limiting groove 132, which can prevent the first sliding member 13 from disengaging from the first slide rail 12 in the vertical direction. That is, the first slide rail 12 plays a supporting role for the mounting bracket 8, ensuring that the mounting bracket 8 can slide smoothly along the first slide rail 12.

[0045] In this embodiment, the second drive assembly 7 includes a second drive motor 71, a rotating shaft driven by the second drive motor 71, a drive gear 72 mounted on the rotating shaft, and a rack 73 meshing with the drive gear 72. The drive rack 73 is fixedly mounted on the frame 1 and extends in the left-right direction. The second drive motor 71 is fixedly mounted on the mounting bracket 8. When the second drive motor 71 is working, it drives the drive gear 72 to rotate. With the drive rack 73 fixed, the rotating drive gear 72 can move linearly along the extension direction of the rack 73, thereby driving the second drive motor 71 to translate in the left-right direction. This causes the mounting bracket 8, which is fixedly connected to the second drive motor 71, to translate in the left-right direction, thereby driving the pressing plate 41 to move. The direction of movement of the mounting bracket 8 can be adjusted by changing the rotation direction of the second drive motor 71.

[0046] It should be noted that the above describes the cooperation between the heat pressing component and the crossbeam. The pretreatment component 3 and the printing component 5 are also set in the frame 1 through the same structure, and will not be described again.

[0047] In this embodiment, the first drive assembly 6 includes a first drive motor 61 and a ball screw 62 driven by the first drive motor 61. The ball screw 62 is connected to the corresponding platform assembly 2 via a nut sleeve. When the first drive motor 61 is working, it drives the ball screw 62 to rotate, and the rotation of the ball screw 62 drives the platform assembly 2 to move linearly in the front-back direction. The ball screw 62 has a high lead accuracy, and the rotation of the ball screw 62 drives the platform assembly 2 to move, ensuring the accuracy of the movement of the platform assembly 2.

[0048] For more details on platform assembly 2, please refer to... Figure 8 The platform assembly 2 also includes a mounting plate 22 extending in the left-right direction and multiple support members 23 disposed on the mounting plate 22. The multiple support members 23 are spaced apart in the left-right direction. Platforms 21 are disposed on the support members 23. The lower end of the support member 23 is fixedly connected to the top surface of the mounting plate 22, and the upper end is fixedly connected to the bottom surface of the platform 21. Each platform 21 is supported and fixed by two support members 23. Under this structure, the platform 21 is structurally stable. In addition, the mounting plate 22 is slidably connected to the frame 1 in the front-back direction. The ball screw 62 is connected to the mounting plate 22 through a nut sleeve. The rotation of the ball screw 62 can drive the mounting plate 22 to slide in the front-back direction, thereby driving the multiple platforms 21 disposed on the mounting plate 22 to move synchronously in the front-back direction.

[0049] Furthermore, the frame 1 has at least one second slide rail 14 extending in the front-back direction for each mounting plate 22, and each mounting plate 22 has at least one second sliding member 15 corresponding to each second slide rail 14. The second sliding member 15 is slidably connected to the second slide rail 14 and is located at the bottom of the mounting plate 22. The cooperation between the second sliding member 15 and the second slide rail 14 provides guidance for the front-back movement of the platform assembly 2, ensuring the stability and directional accuracy of the movement of the platform assembly 2. Here, the second slide rail 14 can be a T-section slide rail extending in the front-back direction, and the second sliding member 15 can be a slider with a sliding groove. The opening direction of the sliding groove is perpendicular to the extension direction of the first slide rail 12. The sliding contact between the two restricts the displacement direction of the mounting plate 22 to ensure the accuracy of the movement trajectory of the platform assembly 2.

[0050] It should be noted that the optimal number of tabletop assemblies 2 in this embodiment is set to two. On the one hand, this makes full use of each piece of equipment and reduces idle time; on the other hand, it avoids making the printing machine too large due to an excessive number of tabletop assemblies 2. Furthermore, when there are many tabletop assemblies 2, the gap between each pair of tabletop assemblies 2 is the same in the left-right direction. Therefore, controlling the pressing assembly 4 to move the same distance in the left-right direction can flatten and heat the fabric in different pressing assemblies, thereby facilitating the control of the movement stroke of the pressing assembly 4.

[0051] It should be noted that the preprocessing component 3 and the printing component 5 in this embodiment are common structures in the prior art, and will not be described in detail here. For details, please refer to Chinese Patent Publication No. CN107487070.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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 they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. 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 digital printing machine, characterized in that, It includes a frame (1), multiple table assemblies (2) arranged in the left-right direction, a pre-treatment assembly (3), a heat pressing assembly (4), and a printing assembly (5) arranged in the front-back direction. The table assembly (2) includes multiple tabletops (21) for supporting fabric, and the multiple tabletops (21) are evenly spaced in the left-right direction; the pretreatment assembly (3) is used to spray pretreatment liquid onto the fabric located on the tabletops (21); the heat pressing assembly (4) includes multiple heat pressing plates (41) corresponding one-to-one with the multiple tabletops (21) in each tabletop assembly (2), and the heat pressing plates (41) can move up and down to flatten the fabric on the tabletops (21) and heat the fabric; the printing assembly (5) is used to spray colored ink onto the fabric located on the tabletops (21) to print a pattern; It also includes multiple first drive components (6) that correspond one-to-one and are used to drive the plate assembly (2) to slide or lock in the front-back direction, and three second drive components (7) that are used to drive the pre-processing assembly (3), the heat pressing assembly (4) and the printing assembly (5) to slide or lock in the left-right direction. The fabric after spraying the pretreatment liquid and the fabric after spraying the color ink share the same heat pressing assembly (4); the heat pressing plate (41) assembly has a temperature control unit for controlling the heat pressing plate (41) to have a first temperature corresponding to the fabric after spraying the pretreatment liquid and a second temperature corresponding to the fabric after spraying the color ink.

2. The digital printing machine according to claim 1, characterized in that, The heat pressing assembly (4) also includes a plurality of driving cylinders (42) corresponding one-to-one with the heat pressing plate (41). The plurality of driving cylinders (42) are slidably mounted on the frame (1) via mounting brackets (8). The plurality of driving cylinders (42) are arranged at intervals in the left-right direction. One end of the driving cylinder (42) is fixed to the mounting bracket (8), and the other end is used to drive the corresponding heat pressing plate (41) to rise and fall vertically.

3. A digital printing machine according to claim 2, characterized in that, The frame (1) is provided with a first slide rail (12) extending in the left and right direction corresponding to the mounting bracket (8). The mounting bracket (8) is provided with at least one first sliding member (13) corresponding to each first slide rail (12). The first sliding member (13) is slidably connected to the first slide rail (12).

4. A digital printing machine according to claim 3, characterized in that, The frame (1) has three mounting beams (11) for mounting the pretreatment component (3), the heat pressing component (4), and the printing component (5), respectively. The mounting beams (11) extend in the left-right direction. The first slide rail is located on one side of the middle mounting beam (11) in the front-back direction. The first sliding member (13) is provided with a slide groove (131) extending in the left-right direction. The first slide rail (12) is slidably embedded in the slide rail. The upper and lower sides of the slide groove (131) are partially recessed to form a limiting groove (132). The first slide rail (12) has a limiting part (121) corresponding to the limiting groove (132) on both sides in the up-down direction. The limiting part (121) is slidably embedded in the limiting groove (132) to restrict the first sliding member (13) from disengaging from the first slide rail (12) in the up-down direction.

5. A digital printing machine according to claim 1, characterized in that, The first drive assembly (6) includes a first drive motor (61) and a ball screw (62) driven to rotate by the first drive motor (61). The ball screw (62) is connected to the corresponding platform assembly (2). The rotation of the ball screw (62) is used to drive the platform assembly (2) to move linearly in the front-back direction.

6. A digital printing machine according to claim 2, characterized in that, The second drive assembly (7) includes a second drive motor (71), a rotating shaft driven by the second drive motor (71), a drive gear (72) mounted on the rotating shaft, and a rack (73) meshing with the drive gear (72). The rack (73) is fixedly mounted on the frame (1) and extends in the left-right direction. The second drive motor (71) is mounted on the mounting bracket (8).

7. A digital printing machine according to claim 1, characterized in that, The platform assembly (2) further includes a mounting plate (22) extending in the left-right direction and a plurality of support members (23) disposed on the mounting plate (22). The plurality of support members (23) are arranged at intervals in the left-right direction, and the platform (21) is disposed on the support members (23). The mounting plate (22) is slidably disposed on the frame (1) in the front-back direction.

8. A digital printing machine according to claim 7, characterized in that, The frame (1) has at least one second slide rail (14) extending in the front-rear direction for each of the mounting plates (22), and the mounting plate (22) has at least one second sliding member (15) for each of the second slide rails (14), and the second sliding member (15) is slidably connected to the second slide rail (14).

9. A digital printing machine according to claim 1, characterized in that, The temperature control unit includes a heating element embedded inside the heat press plate (41).

10. A digital printing machine according to claim 1, characterized in that, The gap between each pair of said platform assemblies (2) is the same in the left-right direction.

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