Cross beam structure applied to digital printing machine and digital printing machine

Abstract

The utility model relates to the technical field of printing equipment, and discloses a cross beam structure applied to a digital calico printing machine and the digital calico printing machine. The first cross beam is arranged on the frame body in the first horizontal direction and used for being connected with the scanning vehicle. The second cross beam is arranged on the frame body in the first horizontal direction and located above the first cross beam; the first adjusting assemblies are arranged between the first cross beam and the second cross beam at intervals in the first horizontal direction; the first adjusting assembly comprises a first connecting block, a second connecting block and a first screw rod; one of the first cross beam and the second cross beam is connected with the first connecting block, and the other is connected with the second connecting block; the first screw rod is arranged in the vertical direction, the two ends of the first screw rod are in threaded connection with the first connecting block and the second connecting block correspondingly, and the screwing directions of threads at the two ends of the first screw rod are opposite. The problems that a cross beam of an existing cross beam structure is prone to slight bending or deformation, and the printing precision is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field, concretely relates to a crossbeam structure for being applied to digital printing machine and digital printing machine. BACKGROUND

[0002] At present, the scanning vehicle of most digital printing machines is designed to take into account multi-head printing and high-capacity ink supply, usually carrying multiple print heads and related components. This makes the overall weight of the scanning vehicle larger, especially when moving at high speed, the heavy scanning vehicle will generate larger inertial force and vibration, increasing the load on the crossbeam.

[0003] In related technologies, the crossbeam structure of the digital printing machine generally includes a frame body and a crossbeam horizontally arranged on the frame body, which supports the scanning vehicle to move for printing. However, when the scanning vehicle moves at high speed on the crossbeam, the crossbeam is easily slightly bent or deformed, affecting the distance between the print head on the scanning vehicle and the medium, leading to uneven inkjet and affecting the printing accuracy. SUMMARY

[0004] Therefore, the utility model provides a crossbeam structure for being applied to digital printing machine and digital printing machine to solve the problem that the crossbeam of the existing crossbeam structure is easily slightly bent or deformed when the scanning vehicle moves at high speed on the crossbeam, affecting the distance between the print head on the scanning vehicle and the medium, leading to uneven inkjet and affecting the printing accuracy.

[0005] In the first aspect, the utility model provides a crossbeam structure for being applied to digital printing machine, include: frame body, first crossbeam, along first horizontal direction setting on the frame body, for connecting scanning vehicle, second crossbeam, along first horizontal direction setting on the frame body, and located above the first crossbeam, multiple first adjusting components, along first horizontal direction interval setting between the first crossbeam and the second crossbeam, the first adjusting component includes first connecting block, second connecting block and first screw rod, one of the first crossbeam and the second crossbeam with first connecting block is connected, and the other with second connecting block is connected, the first screw rod is along vertical direction setting, both ends of the first screw rod are respectively with first connecting block and second connecting block screw connection, and the thread of both ends of the first screw rod is opposite in rotation direction.

[0006] By setting the second cross beam on the frame body, and the second cross beam is connected with the first cross beam through the first adjusting assembly, specifically one of the first cross beam and the second cross beam is connected with the first connecting block, and the other is connected with the second connecting block, and the first connecting block and the second connecting block are connected in the vertical direction through the first screw rod, so as to connect the first cross beam with the second cross beam, since the first cross beam is located above the second cross beam, the second cross beam can exert upward tension on the first cross beam through the first screw rod, so as to fix the first cross beam in the vertical direction, improve the bearing capacity and stability of the first cross beam, and the first adjusting assembly is arranged in the first horizontal direction, that is, the first cross beam is fixed in the first horizontal direction through the first screw rod, so as to prevent the first cross beam from being deformed under load, in addition, when the levelness of the first cross beam deviates or is bent and deformed, since the rotation directions of the threads at the two ends of the first screw rod are opposite, when the first screw rod is adjusted, the first connecting block and the second connecting block can be pulled close to or away from each other, the distance between the first cross beam and the second cross beam can be adjusted at the corresponding position, and then the upward tension or the downward thrust of the first cross beam at the current position is adjusted, so that the first cross beam is fine-tuned upward or downward at the corresponding position in the first horizontal direction, so that the levelness of the first cross beam as a whole or the bending deformation of the local position is adjusted, the horizontal precision of the first cross beam is ensured, the adjustment mode is flexible, when the scanning vehicle is arranged on the first cross beam to work, the distance between the print head on the scanning vehicle and the medium is kept consistent, and excellent printing precision is ensured under high load and high speed.

[0007] In an optional embodiment, the first connecting block is provided with a first through hole matched with the first screw rod, and the first connecting block is provided with a first nut coaxial with the first through hole; the second connecting block is provided with a second through hole matched with the first screw rod, and the second connecting block is provided with a second nut coaxial with the second through hole; the two ends of the first screw rod are threadedly connected with the first nut and the second nut respectively; and the threads of the first nut and the second nut are opposite in rotation direction. By setting the first through hole and the first nut on the first connecting block and matching them with the first screw rod, space for movement of the first screw rod is provided through the first through hole during adjustment, and by setting the second through hole and the second nut on the second connecting block and matching them with the first screw rod, space for movement of the first screw rod is provided through the second through hole during adjustment, which facilitates adjustment.

[0008] In an optional embodiment, the first connecting block is bolted with the first cross beam, and the second connecting block is bolted. The first connecting block and the first cross beam are fixed by bolt connection, and the second connecting block and the second cross beam are fixed by bolt connection, which facilitates installation and disassembly.

[0009] In an alternative embodiment, further comprising: a plurality of second adjusting assemblies arranged in the first horizontal direction between the first cross beam and the second cross beam; the second adjusting assembly is arranged on the second cross beam, and the adjusting end of the second adjusting assembly is connected with the first cross beam, for adjusting the deflection of the corresponding position of the first cross beam in the second horizontal direction; the second horizontal direction is perpendicular to the first horizontal direction. By arranging the second adjusting assembly, when the accuracy of the first cross beam in the first horizontal direction deviates, the corresponding position of the first cross beam can be adjusted in the second horizontal direction by the second adjusting assembly, and through the cooperation of the plurality of second adjusting assemblies, the whole first cross beam is kept in the first horizontal direction, ensuring the printing accuracy of the scanning vehicle.

[0010] In an alternative embodiment, the second adjusting assembly comprises: a third connecting block connected with the second cross beam; a second screw arranged in the second horizontal direction and rotatably connected with the third connecting block; a fourth connecting block sleeved on the second screw and threadedly matched with the second screw; the fourth connecting block is connected with the first cross beam. When it is necessary to adjust the deflection of the corresponding position of the first cross beam in the second horizontal direction, the second screw at the corresponding position is driven to rotate on the third connecting block, so that the fourth connecting block moves on the second screw, and then the fourth connecting block drives the first cross beam to move to deflect, thereby keeping the whole first cross beam in the first horizontal direction, ensuring the printing accuracy of the scanning vehicle.

[0011] In an alternative embodiment, a receiving groove is formed in the bottom end of the third connecting block in the first horizontal direction, and the fourth connecting block is gap-fitted with the receiving groove; the second screw penetrates through the receiving groove, and the two ends of the second screw are rotatably connected with the two side walls of the third connecting block. By arranging the receiving groove in the bottom of the third connecting block, the top end of the fourth connecting block can be arranged in the receiving groove, improving the space utilization rate, and the second screw penetrates through the fourth connecting block and is rotatably matched with the third connecting block, so as to realize the adjustment of the fourth connecting block.

[0012] In an alternative embodiment, the two side walls of the third connecting block are provided with sliding grooves; the sliding grooves are arranged in the vertical direction and are in communication with the receiving groove; the two ends of the second screw are respectively adapted to penetrate through the sliding grooves, and the two ends of the second screw are both connected with limiting portions which abut against the outer side wall of the third connecting block. By arranging the sliding grooves in the vertical direction, the end of the second screw can be both rotatably matched with the sliding groove and moved in the vertical direction, avoiding affecting the adjustment of the first adjusting assembly on the first cross beam and improving the smoothness of the adjustment, and the limiting portions at the two ends of the second screw are arranged for abutting against the outer side wall of the third connecting block for limiting, avoiding the second screw from slipping off.

[0013] In an alternative embodiment, the first adjusting assembly and the second adjusting assembly are alternately and spacedly arranged along a first horizontal direction. By alternately arranging the first adjusting assembly and the second adjusting assembly in sequence, the force applied to the first cross beam during adjustment is evenly distributed, thereby improving stability.

[0014] In an alternative embodiment, the frame body comprises two first frames spacedly arranged along a first horizontal direction, two ends of the first cross beam are respectively connected with the two first frames, two second frames are respectively arranged on top of the two first frames, and two ends of the second cross beam are respectively connected with the two second frames. The frame body adopts a split structure of the first frame and the second frame, and is used for connecting the first cross beam and the second cross beam respectively, thereby facilitating installation and disassembly.

[0015] In a second aspect, the utility model also provides a digital printing machine, include: crossbeam structure, adopt as the crossbeam structure of any one of the first aspect is applied to digital printing machine on; scanning car, set up on the crossbeam structure, for printing. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 It is a structure schematic view of the crossbeam structure applied to the digital printing machine of the utility model embodiment at a first visual angle;

[0018] Figure 2 It is a structure schematic view of the crossbeam structure applied to the digital printing machine of the utility model embodiment at a second visual angle;

[0019] Figure 3 It is a structure schematic view of the first adjusting assembly of the utility model embodiment at a third visual angle

[0020] Figure 4 It is a structure schematic view of the first adjusting assembly of the utility model embodiment at a fourth visual angle;

[0021] Figure 5 It is a structure schematic view of the first adjusting assembly of the utility model embodiment at a fifth visual angle.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, frame body; 11, first frame; 12, second frame; 2, first cross beam; 3, second cross beam; 4, first adjusting assembly; 41, first connecting block; 42, second connecting block; 43, first screw; 44, first nut; 45, second nut; 5, second adjusting assembly; 51, third connecting block; 52, second screw; 53, fourth connecting block; 54, accommodating groove; 55, limiting portion; 56, sliding groove. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 5

[0029] ​According to the embodiment of the utility model, on the one hand, a cross beam structure applied to a digital printing machine is provided, which comprises: a frame body 1; a first cross beam 2 arranged on the frame body 1 along a first horizontal direction and used for connecting a scanning vehicle; a second cross beam 3 arranged on the frame body 1 along the first horizontal direction and located above the first cross beam 2; a plurality of first adjusting assemblies 4 arranged at intervals along the first horizontal direction between the first cross beam 2 and the second cross beam 3; the first adjusting assembly 4 comprises a first connecting block 41, a second connecting block 42 and a first screw rod 43; one of the first cross beam 2 and the second cross beam 3 is connected with the first connecting block 41, and the other is connected with the second connecting block 42; the first screw rod 43 is arranged along a vertical direction, and the two ends of the first screw rod 43 are threadedly connected with the first connecting block 41 and the second connecting block 42 respectively, and the rotation directions of the threads at the two ends of the first screw rod 43 are opposite.

[0030] In the embodiment, the second cross beam 3 is arranged on the frame body 1, and the second cross beam 3 is connected with the first cross beam 2 through the first adjusting assembly 4, specifically, one of the first cross beam 2 and the second cross beam 3 is connected with the first connecting block 41, and the other is connected with the second connecting block 42, and the first connecting block 41 and the second connecting block 42 are connected along the vertical direction through the first screw rod 43, so as to connect the first cross beam 2 with the second cross beam 3. Since the first cross beam 2 is located above the second cross beam 3, the second cross beam 3 can exert an upward pulling force on the first cross beam 2 through the first screw rod 43, so as to fix the first cross beam 2 in the vertical direction, improve the bearing capacity and stability of the first cross beam 2, and fix the first cross beam 2 in the first horizontal direction through the plurality of first adjusting assemblies 4 arranged at intervals along the first horizontal direction, that is, fix the first cross beam 2 in the first horizontal direction through the first screw rod 43 arranged at intervals in the first horizontal direction, so as to prevent the first cross beam 2 from being deformed under load. In addition, when the levelness of the first cross beam 2 deviates or is bent and deformed, since the rotation directions of the threads at the two ends of the first screw rod 43 are opposite, when the first screw rod 43 is adjusted to rotate, the first connecting block 41 and the second connecting block 42 can be pulled to move close to or away from each other, the distance between the first cross beam 2 and the second cross beam 3 can be adjusted at the corresponding position, and then the first cross beam 2 at the current position can exert a pulling force or a pushing force in the vertical direction, so that the first cross beam 2 at the corresponding position in the first horizontal direction is finely adjusted upward or downward, so that the levelness of the first cross beam 2 as a whole or the position of the bending deformation is adjusted under the adjustment of the one or more first screw rods 43, the horizontal precision of the first cross beam 2 is ensured, the adjustment mode is flexible, and when the scanning vehicle is arranged on the first cross beam 2 to work, the distance between the printing head on the scanning vehicle and the medium is kept consistent, so that excellent printing precision can be maintained under high load and high-speed movement.

[0031] Specifically, the middle section of the first screw rod 43 is provided with a clamping part, so as to be connected with a wrench or a spanner to rotate.

[0032] In one embodiment, asFigure 3 As shown, the first connecting block 41 is bolted to the first cross beam 2, and the second connecting block 42 is bolted to the second cross beam 3.

[0033] In this embodiment, the first connecting block 41 is fixed to the first cross beam 2 by bolt connection, and the second connecting block 42 is fixed to the second cross beam 3 by bolt connection, which facilitates installation and disassembly.

[0034] In one embodiment, as shown in Figure 3 As shown, the first connecting block 41 is bolted to the first cross beam 2, and the second connecting block 42 is bolted to the second cross beam 3.

[0035] In this embodiment, by setting the first through hole and the first nut 44 on the first connecting block 41 in cooperation with the first screw rod 43, space is provided for the movement of the first screw rod 43 during adjustment, and by setting the second through hole and the second nut 45 on the second connecting block 42 in cooperation with the first screw rod 43, space is provided for the movement of the first screw rod 43 during adjustment, which facilitates adjustment.

[0036] In one embodiment, as shown in Figure 1 and Figure 2 As shown, the first connecting block 41 is bolted to the first cross beam 2, and the second connecting block 42 is bolted to the second cross beam 3.

[0037] In this embodiment, by setting the second adjusting assembly 5, when the accuracy of the first cross beam 2 in the first horizontal direction deviates, the corresponding position of the first cross beam 2 can be adjusted in the second horizontal direction by the second adjusting assembly 5, and by the cooperation of multiple second adjusting assemblies, the first cross beam 2 as a whole is kept in the first horizontal direction, ensuring the printing accuracy of the scanning vehicle.

[0038] Specifically, the first nut 44 is arranged at the top of the first connecting block 41, and the second nut 45 is arranged at the bottom of the second connecting block 42.

[0039] In one embodiment, as shown in Figure 4 and Figure 5As shown, the second adjusting assembly 5 comprises: a third connecting block 51 connected with the second cross beam 3; a second screw rod 52 arranged along the second horizontal direction and rotatably connected with the third connecting block 51; and a fourth connecting block 53 sleeved on the second screw rod 52 and threadedly matched with the second screw rod 52. The fourth connecting block 53 is connected with the first cross beam 2.

[0040] In this embodiment, when it is needed to adjust the deflection of the corresponding position on the first cross beam 2 in the second horizontal direction, the second screw rod 52 at the corresponding position is driven to rotate on the third connecting block 51, so that the fourth connecting block 53 moves on the second screw rod 52, and then the fourth connecting block 53 drives the first cross beam 2 to move to deflect, thereby keeping the first cross beam 2 as a whole in the first horizontal direction and ensuring the printing accuracy of the scanning vehicle.

[0041] Specifically, as shown in Figure 4 and Figure 5 , the fourth connecting block 53 is bolted with the first cross beam 2, facilitating installation and disassembly.

[0042] Specifically, as shown in Figure 4 and Figure 5 , the third connecting block 51 is bolted with the second cross beam 3, facilitating installation and disassembly.

[0043] In one embodiment, as shown in Figure 4 and Figure 5 , a receiving groove 54 is formed in the bottom end of the third connecting block 51 along the first horizontal direction, and the fourth connecting block 53 is gap-fitted with the receiving groove 54. The second screw rod 52 penetrates the receiving groove 54, and the two ends of the second screw rod 52 are rotatably connected with the two side walls of the third connecting block 51.

[0044] In this embodiment, as shown in Figure 4 and Figure 5 , the receiving groove 54 is arranged at the bottom of the third connecting block 51, and the top end of the fourth connecting block 53 is arranged in the receiving groove 54, improving the space utilization rate. Meanwhile, the second screw rod 52 penetrates the fourth connecting block 53 and is rotatably matched with the third connecting block 51, so as to adjust the fourth connecting block 53.

[0045] In one embodiment, as shown in Figure 4 and Figure 5 , the two side walls of the third connecting block 51 are provided with sliding grooves 56. The sliding grooves 56 are arranged along the vertical direction and communicate with the receiving groove 54. The two ends of the second screw rod 52 are respectively adapted to penetrate the sliding grooves 56, and the two ends of the second screw rod 52 are both connected with limiting portions 55 abutting against the outer side walls of the third connecting block 51.

[0046] It should be noted that the sliding grooves 56 are arranged on the two side walls of the third connecting block 51 along the second horizontal direction, facilitating the connection of the second screw rod 52.

[0047] In the embodiment, the end of the second screw rod 52 is arranged in the sliding groove 56 in the vertical direction, so that the end of the second screw rod 52 can rotate and move in the vertical direction, avoiding affecting the adjustment of the first adjusting assembly 4 on the first cross beam 2, improving the smoothness of the adjustment, and the limiting part 55 is arranged at the two ends of the second screw rod 52 to abut against the outer side wall of the third connecting block 51 for limiting, avoiding the second screw rod 52 from slipping off.

[0048] Specifically, as shown in Figure 4 and Figure 5 , the limiting part 55 is a third nut, and the third nut is fixedly arranged with the second screw rod 52, so as to be clamped on the third nut by a clamp or wrench to drive the second screw rod 52 to rotate.

[0049] In one embodiment, as shown in Figure 4 , the first adjusting assembly 4 and the second adjusting assembly 5 are alternately and spacedly arranged along the first horizontal direction.

[0050] In the embodiment, the first adjusting assembly 4 and the second adjusting assembly 5 are arranged alternately and sequentially, so that the acting force applied to the first cross beam 2 during adjustment is uniformly distributed, improving the stability.

[0051] Specifically, as shown in Figure 5 , the plurality of first adjusting assemblies 4 are uniformly distributed, improving the stability.

[0052] Specifically, as shown in Figure 1 , the plurality of second adjusting assemblies 5 are uniformly distributed, improving the stability.

[0053] In one embodiment, as shown in Figure 1 and Figure 1 Figure 1 Figure 2 , the frame body 1 comprises: two first frames 11, which are spacedly arranged along the first horizontal direction; the two ends of the first cross beam 2 are respectively connected with the two first frames 11; two second frames 12, which are respectively arranged on the top of the two first frames 11; and two ends of the second cross beam 3 are respectively connected with the two second frames 12.

[0054] In the embodiment, the frame body 1 adopts a split structure connected by the first frame 11 and the second frame 12, and is used to connect the first cross beam 2 and the second cross beam 3 respectively, facilitating installation and disassembly.

[0055] Specifically, the first cross beam 2 is provided with a guide rail in the first horizontal direction, and a sliding block is slidingly connected on the guide rail, and the sliding block is used to be connected with a scanning vehicle to facilitate the movement of the scanning vehicle for printing.

[0056] The specific working principle of the beam structure applied to the digital printing machine provided in the embodiment is as follows: when the accuracy of the first beam 2 in the horizontal direction deviates, the first screw rod 43 can be adjusted to rotate, thereby pulling the first connecting block 41 and the second connecting block 42 to move closer to or away from each other, so that the height of the first beam 2 is adjusted, and the first beam 2 can be kept horizontal according to actual conditions, the setting accuracy of the first beam 2 in the first horizontal direction is ensured by adjusting each group of the second adjusting assembly 5, and meanwhile, when the first beam 2 is not adjusted, the second beam 3 provides upward tension to the first beam 2 through the first screw rod 43, thereby improving the bearing capacity and stability of the first beam 2; when the accuracy of the first beam 2 in the first horizontal direction deviates, the second screw rod 52 can be adjusted to rotate, thereby driving the fourth connecting block 53 to move in the third connecting block 51 in the second horizontal direction, and then the fourth connecting block 53 drives the first beam 2 to deviate in the second horizontal direction, and the setting accuracy of the first beam 2 in the first horizontal direction can be ensured according to actual conditions by adjusting each group of the second adjusting assembly 5. The beam structure applied to the digital printing machine provided in the embodiment is characterized in that the second beam 3 is arranged on the frame 1, the second beam 3 is connected with the first beam 2 through the first adjusting assembly 4 and the second adjusting assembly 5, and upward tension is applied to the first beam 2, thereby improving the bearing capacity and stability of the first beam 2, and the horizontal accuracy and the accuracy in the first horizontal direction of the first beam 2 can be adjusted, the adjustment mode is flexible, the distance between the print head on the scanning vehicle and the medium can be kept consistent when the scanning vehicle is arranged on the first beam 2 to work, and excellent printing accuracy can be ensured under high load and high-speed movement, thereby solving the problem that the beam of the existing beam structure is easily bent or deformed when the scanning vehicle moves on the beam at high speed, the distance between the print head on the scanning vehicle and the medium is affected, ink jetting is uneven, and the printing accuracy is affected.

[0057] According to the embodiments of the utility model, on the other hand, a digital printing machine is also provided, including: the beam structure applied to the digital printing machine of any one of the first aspect embodiments; a scanning vehicle arranged on the beam structure and used for printing.

[0058] In the embodiment, the digital printing machine adopts the beam structure applied to the digital printing machine of any one of the first aspect embodiments, so that the digital printing machine with the beam structure has at least the same technical effects as the beam structure applied to the digital printing machine, and the specific principle is the same as any one of the first aspect embodiments, which will not be described here.

[0059] Although the embodiments of the utility model are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A beam structure applied to a digital printing machine, characterized in that, include: Frame (1); The first crossbeam (2) is set on the frame (1) along the first horizontal direction and is used to connect the scanning vehicle; The second crossbeam (3) is arranged on the frame (1) along the first horizontal direction and is located above the first crossbeam (2); Multiple sets of first adjustment components (4) are spaced apart between the first crossbeam (2) and the second crossbeam (3) along the first horizontal direction; the first adjustment component (4) includes a first connecting block, a second connecting block and a first screw; one of the first crossbeam (2) and the second crossbeam (3) is connected to the first connecting block (41) and the other is connected to the second connecting block (42); the first screw (43) is arranged in the vertical direction, and the two ends of the first screw (43) are threadedly connected to the first connecting block (41) and the second connecting block (42) respectively, and the threads at the two ends of the first screw (43) are in opposite directions.

2. The beam structure applied to a digital printing machine according to claim 1, characterized in that, The first connecting block (41) is provided with a first through hole adapted to the first screw (43), and a first nut (44) is provided on the first connecting block (41) coaxially with the first through hole; the second connecting block (42) is provided with a second through hole adapted to the first screw (43), and a second nut (45) is provided on the second connecting block (42) coaxially with the second through hole; the two ends of the first screw (43) are threadedly connected to the first nut (44) and the second nut (45) respectively; the threads of the first nut (44) and the second nut (45) have opposite directions.

3. The beam structure applied to a digital printing machine according to claim 1, characterized in that, The first connecting block (41) is bolted to the first crossbeam (2), and the second connecting block (42) is bolted to the second crossbeam (3).

4. The beam structure applied to a digital printing machine according to any one of claims 1 to 3, characterized in that, Also includes: Multiple sets of second adjustment components (5) are spaced apart between the first crossbeam (2) and the second crossbeam (3) along the first horizontal direction; the second adjustment components (5) are disposed on the second crossbeam (3), and the adjustment end of the second adjustment components (5) is connected to the first crossbeam (2) for adjusting the sway of the first crossbeam (2) along the second horizontal direction; the second horizontal direction is perpendicular to the first horizontal direction.

5. The beam structure applied to a digital printing machine according to claim 4, characterized in that, The second adjustment component (5) includes: The third connecting block (51) is connected to the second crossbeam (3); The second screw (52) is arranged along the second horizontal direction and is rotatably connected to the third connecting block (51); The fourth connecting block (53) is sleeved on the second screw (52) and threadedly engaged with the second screw (52); the fourth connecting block (53) is connected to the first crossbeam (2).

6. The beam structure applied to a digital printing machine according to claim 5, characterized in that, The bottom end of the third connecting block (51) is provided with a receiving groove (54) along the first horizontal direction, and the fourth connecting block (53) is clearance-fitted with the receiving groove (54); the second screw (52) passes through the receiving groove (54), and the two ends of the second screw (52) are respectively rotatably connected to the two side walls of the third connecting block (51).

7. The beam structure applied to a digital printing machine according to claim 6, characterized in that, The third connecting block (51) has sliding grooves (56) on both sides; the sliding grooves (56) are arranged vertically and communicate with the receiving groove (54); the two ends of the second screw (52) are respectively adapted to pass through the sliding grooves (56), and the two ends of the second screw (52) are connected to limiting parts (55), and the limiting parts (55) abut against the outer side wall of the third connecting block (51).

8. The beam structure applied to a digital printing machine according to claim 4, characterized in that, The first adjustment component (4) and the second adjustment component (5) are alternately spaced along the first horizontal direction.

9. The beam structure applied to a digital printing machine according to claim 1, characterized in that, The frame (1) includes: Two first frames (11) are spaced apart along a first horizontal direction; the two ends of the first crossbeam (2) are respectively connected to the two first frames (11); Two second frames (12) are respectively set on top of two first frames (11); the two ends of the second crossbeam (3) are respectively connected to the two second frames (12).

10. A digital printing machine, characterized in that, include: The beam structure applied to a digital printing machine as described in any one of claims 1 to 9; A scanning carriage, mounted on the beam structure, is used for printing.

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