Rack for large-width digital printing machine

Abstract

According to the rack for the large-width digital calico printing machine, a composite cross beam is arranged, the composite cross beam comprises a main beam and an auxiliary beam, first adjusting screw rods are arranged between the main beam and the auxiliary beam at intervals, the main beam and the auxiliary beam are connected into a whole to form a double-beam system, and the auxiliary beam can provide auxiliary supporting force for the main beam; the positions of the main beam are ensured to be located on the same horizontal line, the anti-bending inertia moment of the main beam is enhanced, the anti-deflection capacity of the main beam is improved, when a printing spray head of the digital printing machine is hung on the composite cross beam and moves, the overall stress of the composite cross beam is balanced, and the dynamic deflection is controlled within a reasonable range, so that even if the width is increased, the composite cross beam is not prone to deformation; the number of the printing nozzles can be increased, and the device is especially suitable for a large-width multi-nozzle high-speed printing machine.

Description

Technical Field

[0001] This utility model belongs to the field of digital printing equipment technology, and in particular relates to a frame for a wide-width digital printing machine. Background Technology

[0002] With the surge in demand for wide-width fabrics (≥3.5 meters) in the textile market, digital printing machines are rapidly developing towards larger widths and higher precision. However, traditional frame designs face significant structural stability issues after width expansion, specifically manifested in the following technical bottlenecks: insufficient lateral rigidity leading to excessive dynamic deflection; when the width of a traditional single main beam structure exceeds 3 meters, the bending moment of inertia of the main beam is insufficient; the printing head is suspended on the main beam and prints on the fabric passing through the main frame below as the main beam moves; the movement of the printing head generates dynamic loads, causing non-linear growth in the lateral deflection of the main beam. Actual measurement data shows that when the width increases from 2.5 meters to 4 meters, the deflection at the midpoint of the main beam surges, exceeding the threshold allowed for printing precision, resulting in increased color registration errors, higher scrap rates, and a higher rejection rate. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide a frame for a wide-width digital printing machine, so as to solve the technical problem that the main beam has insufficient bending moment of inertia and increased deflection resistance after the width of the existing digital printing machine is increased, resulting in an increased scrap rate.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A frame for a wide-width digital printing machine includes: a main frame arranged longitudinally, two side frames arranged laterally symmetrically on both sides of the main frame, and a composite beam arranged laterally above the main frame. The composite beam includes: a main beam with both ends connected to the two side frames, an auxiliary beam arranged parallel to the main beam and with both ends connected to the side frames, and a plurality of first adjusting screws spaced apart between the main beam and the auxiliary beam along the length of the main beam and the auxiliary beam. The two ends of each first adjusting screw are connected to the main beam and the auxiliary beam respectively for adjusting the deflection between the main beam and the auxiliary beam.

[0008] The composite cross beam is provided, the composite cross beam comprises a main beam and an auxiliary beam, a first adjusting screw is arranged between the main beam and the auxiliary beam, the main beam and the auxiliary beam are connected into a whole to form a double-beam system, the auxiliary beam can provide auxiliary support force for the main beam, the positions of the main beam are guaranteed to be on the same horizontal line, the bending inertia moment of the main beam is enhanced, the deflection capacity of the main beam is improved, when the printing nozzle of the digital printing machine is hung and installed on the composite cross beam and moves, the overall stress of the composite cross beam is balanced, the dynamic deflection is controlled within a reasonable range, so that the composite cross beam is not easy to deform even if the width is increased, the number of printing nozzles can be increased, and the composite cross beam is especially suitable for a large-width multi-nozzle high-speed printing machine.

[0009] In some embodiments, each lateral frame comprises: a leg in an inverted concave structure, and a plurality of first connecting beams connecting the leg and the side of the main frame;

[0010] The leg is arranged in a concave structure, and since the concave structure is a closed cross section, the torsional stiffness of the design is improved compared with a conventional L-shaped leg.

[0011] In some embodiments, the two ends of the main beam are connected to the upper ends of the legs, and further comprising: two fixed supports in an inverted concave structure and connected to the upper ends of the corresponding legs at the lower ends respectively, and the upper ends of each fixed support are connected to the ends of the auxiliary beam;

[0012] The fixed support in a concave structure has strong torsional stiffness and forms a spatial truss constraint, thereby reducing the stress concentration coefficient of the lower leg and the risk of deformation of the leg.

[0013] In some embodiments, the main frame comprises: two wall plates arranged longitudinally symmetrically, and a plurality of second connecting beams arranged between the two wall plates, and the two ends of each second connecting beam are connected to the two wall plates respectively;

[0014] The main frame is arranged in a structure of two wall plates connected to a plurality of second connecting beams, which can not only improve the structural strength of the main frame, but also reduce the parallelism error between the two wall plates through the plurality of second connecting beams, thereby guaranteeing the installation precision of the printing guide rail.

[0015] In some embodiments, further comprising: a plurality of reinforcing beams arranged at the central positions of the two wall plates and having a cross section larger than that of the second connecting beams, and the two ends of each reinforcing beam are connected to the two wall plates respectively;

[0016] The arrangement of the plurality of reinforcing beams can enhance the structural strength of the connection between the two wall plates and improve the load-bearing capacity of the main frame.

[0017] In some embodiments, each lateral frame further comprises: a first foot arranged at the lower end of the leg and connecting the two sides of the lower end of the leg;

[0018] The first foot is connected to the two sides of the lower end of the concave leg, which can improve the torsional stiffness of the leg.

[0019] In some embodiments, the first legs are in a plate structure and are a plurality of layers, further comprising: a first threaded adjusting structure longitudinally passing through the plurality of first legs and threadedly cooperating with the plurality of first legs, for adjusting the interval between two adjacent first legs to adjust the height of the leg;

[0020] The height of the leg can be adjusted by the cooperation of the plurality of first legs and the first threaded adjusting structure.

[0021] In some embodiments, further comprising: a plurality of second legs arranged at the lower end of the first connecting beam and in a plate structure, the plurality of second legs being arranged in layers, further comprising: a second threaded adjusting structure longitudinally passing through the plurality of second legs and threadedly cooperating with the plurality of second legs, for adjusting the interval between two adjacent second legs to adjust the height of the first connecting beam;

[0022] The height of the entire lateral rack can be adjusted by the cooperation of the second legs and the first legs.

[0023] In some embodiments, further comprising: a plurality of adjusting foot cups arranged at the lower end of the main rack and threadedly cooperating with the main rack, capable of adjusting the height of the main rack up and down;

[0024] The adjusting foot cups can adjust the height of the main rack, and the cooperation between the adjusting foot cups, the first legs and the second legs can adjust the height of the entire rack. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of a rack for a large-width digital printing machine according to the present application;

[0026] Figure 2 is Figure 1 a partial enlarged view of part A in FIG.

[0027] REFERENCE NUMERALS:

[0028] 1, main rack; 101, wallboard; 102, second connecting beam; 103, reinforcing beam; 2, lateral rack; 201, leg; 202, first connecting beam; 203, first leg; 3, composite cross beam; 301, main beam; 302, auxiliary beam; 303, first adjusting screw; 4, adjusting foot cup; 5, fixed support; 6, second leg; 7, second adjusting screw. DETAILED DESCRIPTION

[0029] To make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is explained in further detail below in combination with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0030] The utility model provides a frame for wide width digital printing machine, include: the main frame 1 of longitudinal arrangement, the two lateral frames 2 of lateral symmetry setting in the both sides of main frame 1, the composite crossbeam 3 of lateral arrangement in the upper of main frame 1, wherein, the composite crossbeam 3 includes: the main beam 301 of two ends respectively with two lateral frames 2 is connected, the auxiliary beam 302 of parallel arrangement with main beam 301 and two ends respectively with lateral frame 2 is connected, a plurality of first adjusting screw rod 303 are arranged in the length direction interval between main beam 301 and auxiliary beam 302 along main beam 301 and auxiliary beam 302, and the both ends of each first adjusting screw rod 303 are connected with main beam 301 and auxiliary beam 302 for adjusting the deflection between main beam 301 and auxiliary beam 302.

[0031] Preferably, the cross-shaped rib plate can be arranged inside the main beam 301 and the auxiliary beam 302 to improve the torsional rigidity by 47%.

[0032] Specifically, the distance between adjacent first adjusting screw rods 303 can be set to 600mm, and the distance between adjacent first adjusting screw rods 303 can be adjusted according to the length of the main beam 301 and the auxiliary beam 302.

[0033] Specifically, when assembling the main beam 301 and the auxiliary beam 302, the main beam 301 and the auxiliary beam 302 are arranged in parallel, laser centering (error ≤0.1mm / m) is adopted, and the first adjusting screw rod 303 is installed in the cross sequence of "center→two sides".

[0034] Specifically, the lateral frame 2 includes a leg 201 in inverted concave structure and a plurality of first connecting beams 202 arranged in parallel on the side of the leg 201 and the main frame 1.

[0035] Preferably, the two fixed supports 5 in inverted concave structure are used to fix the auxiliary beam 302, more specifically, the lower ends of the fixed supports 5 are connected with the upper ends of the corresponding legs 201, and the two ends of the auxiliary beam 302 are connected with the corresponding fixed supports 5.

[0036] Specifically, the main frame 1 includes two wallboards 101 arranged symmetrically in the longitudinal direction and a plurality of second connecting beams 102 arranged between the two wallboards 101, and the two ends of each second connecting beam 102 are connected with the two wallboards 101.

[0037] Preferably, the application sets multiple reinforcing beams 103 in the center of the two wall plates 101, the two ends of the reinforcing beams 103 are connected with the two wall plates 101 respectively, and the cross section of the reinforcing beams 103 is larger than that of the second connecting beams 102, so as to strengthen the connecting strength of the two wall plates 101.

[0038] Preferably, the application further sets a first supporting leg 203 at the lower end of the supporting leg 201, the first supporting leg 203 is connected with the two sides of the lower end of the supporting leg 201, and the first supporting leg 203 can enhance the torsional stiffness of the supporting leg 201.

[0039] Further, the first supporting leg 203 of the application is multiple, and the multiple first supporting legs 203 are stacked, each first supporting leg 203 is in a plate structure, and further comprises a first threaded adjusting structure longitudinally penetrating between the multiple first supporting legs 203 and threadedly cooperating with the multiple first supporting legs 203, specifically, the first threaded adjusting structure comprises a second adjusting screw 7 and a nut arranged on the second adjusting screw 7, the second adjusting screw 7 penetrates the multiple first supporting legs 203, and the nut supports the upper first supporting leg 203, and the height of the upper first supporting leg 203 can be adjusted by screwing the nut, so as to adjust the height of the supporting leg 201 and realize height compensation.

[0040] Preferably, the application sets multiple second supporting legs 6 at the lower end of the first connecting beam 202, the second supporting legs 6 are in a plate structure, the multiple second supporting legs 6 are stacked, and further comprises a second threaded adjusting structure longitudinally penetrating on the multiple second supporting legs 6 and threadedly cooperating with the multiple second supporting legs 6, specifically, the structure of the second threaded adjusting structure is same as that of the first threaded adjusting structure, and the adjusting mode of the second threaded adjusting structure is also same as that of the first threaded adjusting structure.

[0041] Preferably, the application sets multiple adjusting foot cups 4 at the lower end of the main rack 1, the multiple adjusting foot cups 4 threadedly cooperate with the main rack 1, and can adjust the height of the main rack 1.

[0042] Specifically, the height of the entire rack can be adjusted by adjusting the height of the first supporting leg 203, the second supporting leg 6 and the adjusting foot cup 4.

[0043] The rack adopting the application is used to install various equipment of the printing machine, and the waste rate of the fabric with a width of 4.2 meters is greatly reduced.

[0044] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A frame for a wide-width digital printing machine, characterized in that, include: A longitudinally arranged main frame (1), two lateral frames (2) symmetrically arranged on both sides of the main frame (1), and a composite beam (3) arranged transversely above the main frame (1). The composite beam (3) includes: a main beam (301) with both ends connected to the two lateral frames (2), an auxiliary beam (302) arranged parallel to the main beam (301) and with both ends connected to the lateral frames (2), and a plurality of first adjusting screws (303) spaced between the main beam (301) and the auxiliary beam (302) along the length direction of the main beam (301) and the auxiliary beam (302). The two ends of each first adjusting screw (303) are connected to the main beam (301) and the auxiliary beam (302) respectively to adjust the deflection between the main beam (301) and the auxiliary beam (302).

2. The frame for a wide-width digital printing machine according to claim 1, characterized in that, Each of the lateral frames (2) includes: a leg (201) with an inverted concave structure and a plurality of first connecting beams (202) connecting the leg (201) to the side of the main frame (1).

3. The frame for a wide-width digital printing machine according to claim 2, characterized in that, The main beam (301) is connected to the upper end of the support leg (201) at both ends, and also includes two fixed brackets (5) with an inverted concave structure and whose lower ends are respectively connected to the upper end of the corresponding support leg (201), the upper end of each fixed bracket (5) being connected to the end of the auxiliary beam (302).

4. The frame for a wide-width digital printing machine according to claim 1, characterized in that, The main frame (1) includes two longitudinally symmetrical wall panels (101) and multiple second connecting beams (102) disposed between the two wall panels (101), with each end of the second connecting beam (102) connected to the two wall panels (101) respectively.

5. The frame for a wide-width digital printing machine according to claim 4, characterized in that, Also includes: Multiple reinforcing beams (103) are set at the center of the two wall panels (101) and have a cross-section larger than the second connecting beam (102). The two ends of each reinforcing beam (103) are respectively connected to the two wall panels (101).

6. The frame for a wide-width digital printing machine according to claim 2, characterized in that, Each of the lateral frames (2) further includes a first foot (203) disposed at the lower end of the leg (201) and connecting the two sides of the lower end of the leg (201).

7. The frame for a wide-width digital printing machine according to claim 6, characterized in that, The first support leg (203) has a plate-like structure and is composed of multiple stacked supports. It also includes a first threaded adjustment structure that is longitudinally inserted through the multiple first support legs (203) and threadedly engaged with the multiple first support legs (203), for adjusting the interval between adjacent first support legs (203).

8. The frame for a wide-width digital printing machine according to claim 6 or 7, characterized in that, Also includes: The first connecting beam (202) is provided with a plurality of second legs (6) in a plate-like structure at the lower end, and the plurality of second legs (6) are stacked. The first part also includes a second threaded adjustment structure that is longitudinally inserted through the plurality of second legs (6) and threadedly engaged with the plurality of second legs (6), for adjusting the interval between two adjacent second legs (6).

9. The frame for a wide-width digital printing machine according to claim 1, characterized in that, Also includes: Multiple adjustable feet (4) are provided at the lower end of the main frame (1) and threaded into the main frame (1), which enable the main frame (1) to be adjusted vertically.

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