A printing machine frame and a digital printing machine

Abstract

The utility model relates to digital printing machine technical field discloses a printing machine frame, including at least two frame monomer, frame monomer includes four rectangular arrangement horizontal square tubes, is fixedly connected through two vertical square tubes between horizontal square tubes in the same side, is fixedly connected through two longitudinal square tubes between two horizontal square tubes in the upside, between two horizontal square tubes below, the inner side wall of connecting sleeve and the outside wall of the end of horizontal square tube are pasted, and the connecting sleeve is fixedly connected with horizontal square tube, and the connecting sleeve is still provided with the compression assembly for compressing horizontal square tube in, the application greatly promotes the connection compactness and stability of adjacent frame, provides stable installation basis for the collaborative work of multiple printing machines.

Description

Technical Field

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

[0002] Digital printing involves inputting patterns into a computer in digital form, editing and processing them through a computer printing color separation and drawing system, and then using a computer-controlled micro piezoelectric inkjet nozzle to directly spray special dyes onto textiles to form the desired pattern. The digital printing process is inseparable from the use of a digital printing machine, which needs to be installed on a frame when in use.

[0003] In actual production scenarios, when faced with demands such as large-volume printing orders, simultaneous production of multiple colors, or wide-width fabric printing, multiple digital printing machines need to be used simultaneously for collaborative operation. To ensure consistent printing standards across multiple machines, avoid pattern misalignment and splicing deviations, and ensure neat machine arrangement to save space, adjacent digital printing machine frames must be securely connected. Currently used frames are square tube welded structures, connected by fitting connecting sleeves onto the ends of two frames and then tightening them with bolts. However, this connection method relies solely on the tightening force of the bolts for fit, lacking additional positioning and anti-loosening structures. Long-term exposure to equipment vibration can easily cause the bolts to loosen or even fall off. Vibration can create gaps at the frame connections, leading to abnormal noises and ultimately affecting the operational stability of the digital printing machine, causing quality problems such as blurred or misaligned printed patterns. Summary of the Invention

[0004] The purpose of this utility model is to provide a printing machine frame that achieves a stable connection between adjacent frame units, solves the problems of loose connections, vibration noise, and easy bolt detachment at the connection points of frame units when multiple printing machines are working together, and ensures the consistency of the printed patterns and the printing quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A printing machine frame includes at least two frame units. Each frame unit includes four horizontal square tubes arranged in a rectangular pattern. The horizontal square tubes on the same side are fixedly connected by two vertical square tubes. The two horizontal square tubes on the upper side and the two horizontal square tubes on the lower side are fixedly connected by two vertical square tubes.

[0007] The two adjacent frame units are connected by a connecting structure, which includes a connecting sleeve. The connecting sleeve is installed through the entire unit and is fitted on the outer side of the ends of the two adjacent horizontal square tubes. The inner side wall of the connecting sleeve fits against the outer side wall of the end of the horizontal square tube. The connecting sleeve is fixedly connected to the horizontal square tube. A clamping component for pressing the horizontal square tube is also provided inside the connecting sleeve.

[0008] In the above technical solution, the main frame structure of the machine unit is obtained by welding horizontal, vertical, and longitudinal square tubes together. The digital printing machine is then fixedly installed on the upper horizontal and / or longitudinal square tubes. After the main frame structure is welded, the ends of the horizontal square tubes are independently set outwards. Therefore, when adjacent machine units are spliced, a connecting sleeve is placed on the ends of the two horizontal square tubes, with the inner wall of the connecting sleeve fitting against the outer wall of the end of the horizontal square tube to increase the contact area. Then, a clamping assembly is used to press the horizontal square tubes together, achieving a stable connection between the connecting sleeve and the horizontal square tube. Compared with traditional simple bolt connections, this solution can significantly improve the tightness and stability of the connection between adjacent machine units, effectively avoiding abnormal noises and loosening at the connection, and providing a stable installation foundation for the collaborative operation of multiple printing machines.

[0009] Preferably, a first flange is fixed on the connecting sleeve, and a second flange is fixed to the end of the transverse square tube. The first flange and the second flange fit together, and the first flange and the second flange are provided with through holes facing each other. The connecting bolt passes through the through holes and is connected to the nut.

[0010] Preferably, the clamping assembly includes a pressure plate disposed inside the connecting sleeve, the pressure plate being inserted into the transverse square tube, a stud being fixed on the pressure plate, the connecting sleeve being provided with a through hole allowing the stud to pass through, the stud being connected to a handwheel with a threaded hole, the handwheel being clamped to the outside of the connecting sleeve, and a groove being provided at the end of the transverse square tube allowing the stud to pass through.

[0011] Preferably, the connecting sleeve is provided with four pressure plates, which are located at the top, bottom, left and right of the connecting sleeve respectively.

[0012] Preferably, a reinforcing ring is fixed to the outer periphery of the connecting sleeve opposite the through hole.

[0013] Preferably, a guide pin is fixed on the pressure plate, and a guide hole is provided through the connecting sleeve to allow the guide pin to pass through.

[0014] Preferably, an upper worktable is fixedly installed at the upper ends of the horizontal and vertical square tubes located at the top.

[0015] Preferably, a lower worktable is fixedly installed at the upper ends of the horizontal square tube at the lower end and the vertical square tube at the lower end.

[0016] Preferably, the two horizontal square tubes at the bottom are equipped with wheels on their lower ends, and the ends of the two horizontal square tubes at the bottom are provided with support feet. The support feet include a screw and a support block fixedly installed at the lower end of the screw. The ends of the horizontal square tubes are provided with annular grooves that allow the screw to pass through. The screw is threaded with an upper nut and a lower nut, which are located at the upper and lower ends of the horizontal square tubes, respectively.

[0017] Another objective of this utility model is to provide a digital printing machine that, through the stable connection of individual frame units, ensures printing accuracy and pattern splicing consistency, improves the operational stability, ease of assembly and disassembly, and reliability of the equipment in large-scale production scenarios, and meets the high-efficiency production needs of collaborative printing by multiple machines.

[0018] To achieve the above objectives, the present invention adopts the following technical solution:

[0019] A digital printing machine includes the aforementioned printing machine frame, on which the digital printing machine is fixedly mounted. The assembly of the digital printing machine with the frame effectively reduces vibration interference during equipment operation, prevents displacement or shaking of the printing machine due to frame loosening, and ensures the clarity and consistency of the printed pattern. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the printing machine frame described in this utility model;

[0021] Figure 2 This is a schematic diagram of the splicing state of the printing machine frame;

[0022] Figure 3 This is a schematic diagram of the connection structure;

[0023] Figure 4 for Figure 3 A schematic diagram of the split structure;

[0024] Figure 5 for Figure 1 Enlarged structural diagram at point A;

[0025] Figure 6 for Figure 2 A magnified structural diagram at point B in the middle. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] like Figure 1-6 A printing machine frame includes at least two frame units. Each frame unit includes four horizontal square tubes (1) arranged in a rectangular shape. The horizontal square tubes (1) on the same side are fixedly connected by two vertical square tubes (11). The two horizontal square tubes (1) on the upper side and the two horizontal square tubes (1) on the lower side are fixedly connected by two vertical square tubes (12).

[0028] The two adjacent frame units are connected by a connecting structure. The connecting structure includes a connecting sleeve (13). The connecting sleeve (13) is installed through the frame and is sleeved on the outer side of the ends of the two adjacent frame units (1). The inner side wall of the connecting sleeve (13) is in contact with the outer side wall of the end of the frame unit (1). The connecting sleeve (13) is fixedly connected to the frame unit (1). A clamping component for clamping the frame unit (1) is also provided inside the connecting sleeve (13).

[0029] In the above technical solution, the main frame structure of the machine unit is obtained by welding horizontal, vertical, and longitudinal square tubes together. The digital printing machine is then fixedly installed on the upper horizontal and / or longitudinal square tubes. After the main frame structure is welded, the ends of the horizontal square tubes are independently set outwards. Therefore, when adjacent machine units are spliced, a connecting sleeve is placed on the ends of the two horizontal square tubes, with the inner wall of the connecting sleeve fitting against the outer wall of the end of the horizontal square tube to increase the contact area. Then, a clamping assembly is used to press the horizontal square tubes together, achieving a stable connection between the connecting sleeve and the horizontal square tube. Compared with traditional simple bolt connections, this solution can significantly improve the tightness and stability of the connection between adjacent machine units, effectively avoiding abnormal noises and loosening at the connection, and providing a stable installation foundation for the collaborative operation of multiple printing machines.

[0030] During implementation, a first flange (14) is fixed on the connecting sleeve (13), and a second flange (15) is fixed at the end of the transverse square tube (1). The first flange (14) and the second flange (15) fit together. The first flange (14) and the second flange (15) are provided with through holes facing each other. The connecting bolt passes through the through holes and is connected to the nut.

[0031] In the above technical solution, the first flange and the second flange are fastened by connecting bolts passing through the through holes and nuts, so that the connecting sleeve and the transverse square tube form a surface contact and fixation. Compared with the connection method that only relies on the tube body to fit together, this solution can increase the connection force area, improve the load-bearing capacity of the connection structure, and thus improve the overall connection stability of the frame and ensure the operating accuracy of the printing machine.

[0032] In practice, the clamping assembly includes a pressure plate (16) disposed inside the connecting sleeve (13), the pressure plate (16) is inserted into the transverse square tube (1), a stud (17) is fixed on the pressure plate (16), the connecting sleeve (13) is provided with a through hole (2) that allows the stud (17) to pass through, the stud (17) is connected to a handwheel (18) with a threaded hole, the handwheel (18) is pressed against the outside of the connecting sleeve (13), and the end of the transverse square tube (1) is provided with a groove (19) that allows the stud (17) to pass through.

[0033] In the above technical solution, the connecting sleeve, pressure plate, bolts, and handwheel are assembled as a whole. When assembling with the end of the transverse square tube, the connecting sleeve is placed on the end of the transverse square tube, and the pressure plate is simultaneously inserted into the transverse square tube. The stud slides into the groove at the end of the transverse square tube. At this time, rotating the handwheel causes the threaded hole of the handwheel to engage with the stud, pressing the handwheel against the outside of the connecting sleeve. This, in turn, causes the pressure plate to come into contact with the inner surface of the transverse square tube. By utilizing the arrangement of the pressure plate and the connecting sleeve, contact and compression are achieved on the inner and outer sides of the transverse square tube, improving the reliability of the connection between the connecting sleeve and the transverse square tube. Furthermore, this operation requires no additional tools and is simple to perform.

[0034] During implementation, four pressure plates (16) are provided inside the connecting sleeve (13), located at the top, bottom, left and right of the connecting sleeve (13).

[0035] In the above technical solution, pressure plates are installed in four directions (upper, lower, left, and right) inside the connecting sleeve. This allows for simultaneous application of clamping force from all four side walls of the transverse square tube, ensuring uniform clamping force within the connecting sleeve and preventing tube tilting or uneven stress caused by unilateral clamping. This four-sided clamping method achieves omnidirectional fit and fixation between the transverse square tube and the connecting sleeve, limiting the radial and circumferential displacement of the transverse square tube within the connecting sleeve. This further enhances the connection rigidity of adjacent frame units, effectively suppressing resonance when multiple printing machines operate collaboratively, and ensuring the splicing accuracy and printing quality of the printed pattern.

[0036] During implementation, a reinforcing ring (21) is fixed to the outer periphery of the connecting sleeve (13) directly opposite the through hole (2).

[0037] In the above technical solution, the reinforcement ring can specifically enhance the structural strength of the connecting sleeve at the location where the stud passes through, avoiding the problem of local wall thickness reduction and easy deformation of the connecting sleeve due to the opening of the through hole.

[0038] During implementation, a guide pin (22) is fixed on the pressure plate (16), and a guide hole (23) is provided through the connecting sleeve (13) to allow the guide pin (22) to pass through.

[0039] In the above technical solution, the cooperation between the guide pin and the guide hole provides guidance for the movement of the pressure plate, preventing the pressure plate from shifting or jamming during tightening or loosening, ensuring that the pressure plate can always be parallel and in contact with the inner wall of the transverse square tube, and improving the consistency of the tightening effect. The guide pin can also restrict the circumferential rotation of the pressure plate, preventing the screw from rotating and causing the pressure plate to rotate synchronously, ensuring that the clamping force of the pressure plate on the transverse square tube is concentrated on the tube wall, further optimizing the anti-loosening performance and stability of the connection structure.

[0040] During implementation, an upper workbench (24) is fixedly installed on the upper ends of the horizontal square tube (1) and the vertical square tube (12) located at the top.

[0041] In the above technical solution, the setting of the workbench allows the frame unit to directly support the printing machine without the need for additional installation carrier, simplifying the installation process of the printing machine.

[0042] During implementation, a lower workbench (25) is fixedly installed at the upper ends of the horizontal square tube (1) and the vertical square tube (12) located at the lower end.

[0043] In practice, the two horizontal square tubes (1) at the bottom are equipped with wheels (26) on the lower side of their ends. The two horizontal square tubes (1) at the bottom are equipped with support feet (27). The support feet (27) include a screw and a support block fixedly installed at the lower end of the screw. The end of the horizontal square tube (1) is provided with an annular groove that allows the screw to pass through. The screw is threaded with an upper nut (28) and a lower nut (29). The upper nut (28) and the lower nut (29) are located at the upper end and the lower end of the horizontal square tube (1), respectively.

[0044] In the above technical solution, wheels are installed on the lower side of the horizontal square tube end, enabling the frame to move easily. Compared to a fixed frame, this significantly reduces the difficulty of handling and positioning multiple frames when splicing them together, improving installation efficiency. The support feet adopt a combination structure of screws, support blocks, and upper and lower nuts. By adjusting the height of the screws, the frame can be leveled, ensuring the worktable is level and guaranteeing the printing machine's operating accuracy. Simultaneously, after the frame is positioned, the support feet move downwards, causing the wheels to lift off the ground, making the position of the individual frame units more accurate and stable. During adjustment, rotating the upper and lower nuts allows for adjustment of the support foot's position.

[0045] This utility model also provides a digital printing machine, including the aforementioned printing machine frame, on which the digital printing machine is fixedly mounted. The assembly of the digital printing machine with the frame effectively reduces vibration interference during equipment operation, avoids displacement or shaking of the printing machine due to frame loosening, and ensures the clarity and consistency of the printed pattern.

[0046] It should be further noted that the digital printing machine can be directly fixed on the horizontal square tube and / or the vertical square tube, or it can be fixed on the worktable. The installation method can be selected according to the actual needs.

[0047] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0048] 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 according to the specific circumstances.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printing machine frame, characterized in that, It includes at least two rack units, each rack unit includes four horizontal square tubes (1) arranged in a rectangular shape. The horizontal square tubes (1) on the same side are fixedly connected by two vertical square tubes (11). The two horizontal square tubes (1) on the upper side and the two horizontal square tubes (1) on the lower side are fixedly connected by two vertical square tubes (12). The two adjacent frame units are connected by a connecting structure. The connecting structure includes a connecting sleeve (13). The connecting sleeve (13) is installed through the frame and is sleeved on the outer side of the ends of the two adjacent frame units (1). The inner side wall of the connecting sleeve (13) is in contact with the outer side wall of the end of the frame unit (1). The connecting sleeve (13) is fixedly connected to the frame unit (1). A clamping component for clamping the frame unit (1) is also provided inside the connecting sleeve (13).

2. The printing machine frame according to claim 1, characterized in that, A first flange (14) is fixed on the connecting sleeve (13), and a second flange (15) is fixed at the end of the transverse square tube (1). The first flange (14) and the second flange (15) fit together. The first flange (14) and the second flange (15) are provided with through holes facing each other. The connecting bolt passes through the through holes and is connected to the nut.

3. The printing machine frame according to claim 1 or 2, characterized in that, The clamping assembly includes a pressure plate (16) disposed inside the connecting sleeve (13), the pressure plate (16) is inserted into the transverse square tube (1), a stud (17) is fixed on the pressure plate (16), the connecting sleeve (13) is provided with a through hole (2) that allows the stud (17) to pass through, the stud (17) is connected to a handwheel (18) with a threaded hole, the handwheel (18) is pressed against the outside of the connecting sleeve (13), and the end of the transverse square tube (1) is provided with a groove (19) that allows the stud (17) to pass through.

4. The printing machine frame according to claim 3, characterized in that, The connecting sleeve (13) is provided with four pressure plates (16), which are located at the top, bottom, left and right of the connecting sleeve (13).

5. The printing machine frame according to claim 3, characterized in that, A reinforcing ring (21) is fixed to the outer periphery of the connecting sleeve (13) opposite to the through hole (2).

6. The printing machine frame according to claim 3, characterized in that, A guide pin (22) is fixed on the pressure plate (16), and a guide hole (23) is provided through the connecting sleeve (13) to allow the guide pin (22) to pass through.

7. The printing machine frame according to claim 1, 2, 4, 5 or 6, characterized in that, An upper worktable (24) is fixedly installed on the upper ends of the horizontal square tube (1) and the vertical square tube (12) located at the top.

8. The printing machine frame according to claim 1, 2, 4, 5 or 6, characterized in that, A lower worktable (25) is fixedly installed at the upper end of the horizontal square tube (1) and the vertical square tube (12) located at the lower end.

9. The printing machine frame according to claim 1, 2, 4, 5 or 6, characterized in that, Two horizontal square tubes (1) located at the lower end are equipped with walking wheels (26) on their lower sides. Support feet (27) are provided at the ends of the two horizontal square tubes (1) located at the lower end. The support feet (27) include a screw and a support block fixedly installed at the lower end of the screw. The ends of the horizontal square tubes (1) are provided with annular grooves that allow the screw to pass through. The screw is threaded with an upper nut (28) and a lower nut (29). The upper nut (28) and the lower nut (29) are located at the upper end and the lower end of the horizontal square tubes (1), respectively.

10. A digital printing machine, characterized in that, The digital printing machine is fixedly mounted on the printing machine frame as described in any one of claims 1 to 9.

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