Gantry headstock lifting mechanism of digital printing machine

Abstract

The utility model discloses a digital calico printing machine gantry headstock lifting mechanism which comprises a cross beam and supporting stand columns located at the two ends of the cross beam, the lifting mechanism is arranged between the cross beam and the supporting stand columns, the lifting mechanism comprises an adjusting nut, a supporting bolt and a long bolt, the adjusting nut is in threaded connection with the supporting bolt, and the long bolt is in threaded connection with the supporting bolt. An inner threaded hole extending along the axis of the supporting bolt is formed in the center of the supporting bolt, the long bolt penetrates through the cross beam and then is in threaded connection with the inner threaded hole, the adjusting nut is located between the cross beam and the supporting stand column and abuts against the supporting stand column, and one end of the supporting bolt penetrates through the supporting stand column. And when the adjusting nut rotates, the supporting bolt cannot be driven to rotate, and the adjusting effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of digital printing equipment, and more specifically relates to a gantry head frame lifting mechanism for a digital printing machine. Background Art

[0002] In order to improve the accuracy of digital printing, most of the digital printing equipment currently adjusts the horizontality of the digital printing head by adjusting the height of the two ends of the beam. The common adjustment mechanism is to set a support bolt between the beam and the supporting column. Two adjusting nuts are threadedly connected to the support bolt, and the two adjusting nuts are located between the beam and the supporting column, that is, support and adjustment are achieved through two adjusting nuts. During adjustment, one of the adjusting nuts can be rotated to achieve the lifting and lowering of one end of the beam. Due to the friction between the bolts and nuts, it is necessary to use a wrench to fix the other adjusting bolt while rotating one of the adjusting nuts. Since the weight of the beam and the digital printing head is pressed on the adjusting bolt, two workers are required to adjust it, that is, one worker fixes one of the adjusting nuts and the other worker rotates the other adjusting nut. The manpower adjustment cost is high, and the support bolt may also be driven to rotate during the adjustment process, thereby affecting the adjustment effect. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a lifting mechanism for a gantry head frame of a digital printing machine, which only requires one worker to operate during adjustment, thereby reducing the adjustment cost and improving the adjustment effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting mechanism of a gantry frame of a digital printing machine, comprising a crossbeam and supporting columns located at both ends of the crossbeam, a lifting mechanism is arranged between the crossbeam and the supporting columns, the lifting mechanism comprises an adjusting nut, a supporting bolt and a long bolt, the adjusting nut is threadedly connected to the supporting bolt, an internal threaded hole extending along its axis is arranged at the center of the supporting bolt, the long bolt is threadedly connected to the internal threaded hole after passing through the crossbeam, the adjusting nut is located between the crossbeam and the supporting column, and abuts against the supporting column, and one end of the supporting bolt passes through the supporting column.

[0005] Furthermore, a first support plate is provided at the end of the crossbeam, a second support plate corresponding to the first support plate is provided on the support column, the lifting structure is located between the first support plate and the second support plate, the long bolt passes through the first support plate, the support bolt passes through the second support plate, and the adjusting nut abuts against the surface of the second support plate.

[0006] Furthermore, an adjusting through hole is provided on the first supporting plate, and the inner diameter of the adjusting through hole is larger than the outer diameter of the long bolt, and the long bolt passes through the adjusting through hole.

[0007] Furthermore, a conical combined washer is arranged between the adjusting through hole and the screw head of the long bolt, a conical washer is arranged between the adjusting through hole and the screw head of the supporting bolt, and a groove is arranged on the screw head of the bolt, and the conical surface of the conical washer is located in the groove.

[0008] Furthermore, a horizontal adjustment mechanism is arranged between the first support plate and the second support plate, and the horizontal adjustment mechanism includes a first fixed block located on the first support plate and two second fixed blocks located on the second support plate, the two second fixed blocks are respectively located on both sides of the first fixed block, and an adjusting screw is threadedly connected to the second fixed block, and an end of the adjusting screw is in contact with the first fixed block.

[0009] Furthermore, the adjusting through hole is a waist-shaped through hole, and the length direction of the waist-shaped through hole is perpendicular to the length direction of the cross beam, and the width of the waist-shaped through hole is greater than the outer diameter of the long bolt.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the screw head of the long bolt and the screw head of the supporting bolt are clamped on the beam by the connection between the long bolt and the supporting bolt, so that the supporting bolt can be fixed on the beam, and then the supporting bolt can be moved up and down by rotating the adjusting nut to realize the lifting and lowering of the beam, thereby adjusting the horizontality of the digital printing head on the beam through the lifting distance at both ends of the beam. During adjustment, only one worker is required to rotate the adjusting nut, and the rotation of the adjusting nut will not drive the supporting bolt to rotate, thereby improving the adjustment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a side structural diagram of the gantry head frame lifting mechanism of the utility model digital printing machine;

[0012] Figure 2 This is a partial front structural diagram of the gantry head frame lifting mechanism of the utility model digital printing machine;

[0013] Figure 3 for Figure 1 Enlarged view of part A in the middle;

[0014] Figure 4 for Figure 1 Enlarged view of middle part B;

[0015] Figure 5 for Figure 4 Side structural diagram of the mid-level adjustment mechanism.

[0016] Figure numerals: crossbeam 1; support column 2; adjusting nut 3; supporting bolt 4; long bolt 5; internal threaded hole 6; first supporting plate 7; second supporting plate 8; adjusting through hole 9; conical combined washer 10; conical washer 11; first fixing block 12; second fixing block 13; adjusting screw 14. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0019] Reference Figures 1 to 5 The utility model is further described.

[0020] A lifting mechanism for a gantry frame of a digital printing machine comprises a crossbeam 1 and supporting columns 2 located at both ends of the crossbeam 1, a lifting mechanism is arranged between the crossbeam 1 and the supporting columns 2, the lifting mechanism comprises an adjusting nut 3, a supporting bolt 4 and a long bolt 5, the adjusting nut 3 is threadedly connected to the supporting bolt 4, an internal threaded hole 6 extending along its axis is arranged at the center of the supporting bolt 4, the long bolt 5 is threadedly connected to the internal threaded hole 6 after passing through the crossbeam 1, the adjusting nut 3 is located between the crossbeam 1 and the supporting column 2, and abuts against the supporting column 2, and one end of the supporting bolt 4 passes through the supporting column 2.

[0021] like Figures 1 to 3 As shown, by connecting the long bolt 5 with the support bolt 4, the screw head of the long bolt 5 and the screw head of the support bolt 4 are clamped on the beam 1, so that the support bolt 4 can be fixed on the beam 1, and then the support bolt 4 can be moved up and down by rotating the adjusting nut 3 to realize the lifting and lowering of the beam 1, so as to adjust the horizontality of the digital printing head on the beam 1 by the lifting distance at both ends of the beam 1. During adjustment, only one worker is required to rotate the adjusting nut 3, and the rotation of the adjusting nut 3 will not drive the support bolt 4 to rotate, thereby improving the adjustment effect.

[0022] like Figure 3As shown, in the present embodiment, preferably, a first support plate 7 is provided at the end of the crossbeam 1, a second support plate 8 corresponding to the first support plate 7 is provided on the support column 2, the lifting structure is located between the first support plate 7 and the second support plate 8, the long bolt 5 passes through the first support plate 7, the support bolt 4 passes through the second support plate 8, and the adjusting nut 3 abuts against the surface of the second support plate 8.

[0023] like Figure 3 As shown, in the present embodiment, preferably, an adjusting through hole 9 is provided on the first support plate 7, and the inner diameter of the adjusting through hole 9 is larger than the outer diameter of the long bolt 5. The long bolt 5 passes through the adjusting through hole 9. The adjusting through hole 9 with a larger inner diameter can generate an axial inclination angle between the long bolt 5 and the adjusting through hole 9, so as to facilitate the adjustment of the crossbeam 1.

[0024] like Figure 3 As shown, in the present embodiment, preferably, a conical combination washer 10 (composed of a conical convex washer and a conical concave washer, or a spherical combination washer) is arranged between the adjusting through hole 9 and the screw head of the long bolt 5, a conical washer 11 (or a washer) is arranged between the adjusting through hole 9 and the screw head of the supporting bolt 4, and a groove is arranged on the screw head of the supporting bolt 4, and the conical surface of the conical washer 11 is located in the groove (it may also be a protrusion of the screw head of the supporting bolt 4 and a gasket groove).

[0025] When the cross beam 1 is adjusted to create an inclination angle between the long bolt 5 and the first support plate 7, the conical (spherical) combined washers can undergo friction transmission with each other, thereby ensuring the contact effect between the screw head of the long bolt 5 and the first support plate 7; when the cross beam 1 is adjusted to create an inclination angle between the support bolt 4 and the first support plate 7, friction rotation occurs between the conical (spherical) washer and the support bolt 4, which can also ensure the contact effect between the screw head of the support bolt 4 and the first support plate 7.

[0026] like Figure 4 and Figure 5 As shown, in the present embodiment, preferably, a horizontal adjustment mechanism is provided between the first support plate 7 and the second support plate 8, and the horizontal adjustment mechanism includes a first fixed block 12 located on the first support plate 7 and two second fixed blocks 13 located on the second support plate 8, the two second fixed blocks 13 are respectively located on both sides of the first fixed block 12, and an adjusting screw 14 is threadedly connected to the second fixed block 13, and the end of the adjusting screw 14 is in contact with the first fixed block 12.

[0027] like Figure 3 As shown, in the present embodiment, preferably, the adjusting through hole 9 is a waist-shaped through hole, and the length direction of the waist-shaped through hole is perpendicular to the length direction of the cross beam 1 , and the width of the waist-shaped through hole is greater than the outer diameter of the long bolt 5 .

[0028] When adjusting the horizontal position of the beam 1, the contact between the adjusting screw 14 on one of the second fixing blocks 13 and the first fixing block 12 is loosened, and then the other adjusting screw 14 is rotated to push the first fixing block 12 so that the beam 1 moves horizontally. After adjustment, the loosened adjusting screw 14 is tightened again to contact the first fixing block 12.

[0029] In this example, preferably, when adjusting the level, first loosen the connection between all the long bolts 5 and the support bolts 4, and after the level adjustment, the level of the digital printing head needs to be re-adjusted.

[0030] In this example, it is preferred that since the horizontal adjustment of the crossbeam 1 is to ensure the horizontal printing angle of the digital printing head, it is only necessary to set a water bottle adjustment mechanism between one end of the crossbeam 1 and the supporting column 2.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A gantry head frame lifting mechanism for a digital printing machine, characterized by: It includes a crossbeam and supporting columns at both ends of the crossbeam, a lifting mechanism is arranged between the crossbeam and the supporting columns, the lifting mechanism includes an adjusting nut, a supporting bolt and a long bolt, the adjusting nut is threadedly connected to the supporting bolt, the center of the supporting bolt is provided with an internal threaded hole extending along its axis, the long bolt passes through the crossbeam and is threadedly connected to the internal threaded hole, the adjusting nut is located between the crossbeam and the supporting column, and abuts against the supporting column, and one end of the supporting bolt passes through the supporting column.

2. The gantry head frame lifting mechanism of the digital printing machine according to claim 1 is characterized in that: A first support plate is provided at the end of the crossbeam, a second support plate corresponding to the first support plate is provided on the support column, the lifting structure is located between the first support plate and the second support plate, the long bolt passes through the first support plate, the support bolt passes through the second support plate, and the adjusting nut abuts against the surface of the second support plate.

3. The gantry head frame lifting mechanism of the digital printing machine according to claim 2 is characterized in that: The first supporting plate is provided with an adjusting through hole, and the inner diameter of the adjusting through hole is larger than the outer diameter of the long bolt, and the long bolt passes through the adjusting through hole.

4. The gantry head frame lifting mechanism of the digital printing machine according to claim 3 is characterized in that: A conical combined washer is arranged between the adjusting through hole and the screw head of the long bolt, a conical washer is arranged between the adjusting through hole and the screw head of the supporting bolt, and a groove is arranged on the screw head of the bolt, and the conical surface of the conical washer is located in the groove.

5. The gantry head frame lifting mechanism of the digital printing machine according to claim 2 is characterized in that: A horizontal adjustment mechanism is arranged between the first support plate and the second support plate, and the horizontal adjustment mechanism includes a first fixed block located on the first support plate and two second fixed blocks located on the second support plate, the two second fixed blocks are respectively located on both sides of the first fixed block, and an adjusting screw is threadedly connected to the second fixed block, and an end of the adjusting screw is in contact with the first fixed block.

6. The gantry head frame lifting mechanism of the digital printing machine according to claim 4 is characterized in that: The adjusting through hole is a waist-shaped through hole, and the length direction of the waist-shaped through hole is perpendicular to the length direction of the cross beam, and the width of the waist-shaped through hole is greater than the outer diameter of the long bolt.

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