Automatic lifting cross beam structure

Abstract

The utility model discloses an automatic liftable cross beam structure, which comprises a cross beam and a mounting frame, the mounting frame is fixedly mounted on an external base, a plurality of mounting rods are fixed on the cross beam, and the end parts of the plurality of mounting rods are mounted on the mounting frame in a liftable manner so as to drive the cross beam to lift up and down above the base. According to the cross beam structure, the overall lifting function of the cross beam is achieved through the mounting rods capable of being independently adjusted, and the printing pressure adjusting precision and efficiency are effectively improved; the modular mounting rod design is adopted, and a single rod body can be independently replaced when being abraded, so that the maintenance cost is remarkably reduced; a self-locking adjusting device is arranged at the end of the mounting rod, the position can be rapidly locked at any height, the lifting stroke can be accurately controlled through cooperation with a digital ruler, and the equipment operation stability and the printed matter quality consistency are improved.

Description

Technical Field

[0001] This utility model relates to a digital printing machine, and more specifically to an automatically lifting and lowering beam structure. Background Technology

[0002] Digital printing presses primarily use a printing carriage that moves horizontally above the paper for inkjet printing. Therefore, a crossbeam is provided for the printing carriage to move horizontally. However, the height of the existing crossbeam is not adjustable, which limits the paper thickness it can accommodate. This makes it very inconvenient when the paper thickness changes and the height of the printing carriage needs to be adjusted. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic liftable beam structure that can facilitate the up and down movement of the printing carriage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatically lifting and lowering crossbeam structure, including a crossbeam and a mounting frame. The mounting frame is fixedly installed on an external base, and several mounting rods are fixed on the crossbeam. The ends of the several mounting rods are liftably installed on the mounting frame to drive the crossbeam to move up and down above the base.

[0005] As a further improvement of this utility model, a lifting angle steel is installed on the side of the mounting frame in a height-adjustable manner. The end of the mounting rod is fixed to the upper side of the lifting angle steel by bolts. The upper side of the mounting frame is provided with a driving device for driving the lifting angle steel to move up and down.

[0006] As a further improvement of this utility model, the driving device includes a drive motor and several bevel gear lifters. The several bevel gear lifters are respectively installed on the mounting frame at the position relative to the lifting angle steel. Each bevel gear lifter has an input shaft and an output shaft. The input shaft is linked with the drive motor, and the output shaft passes downward through the mounting frame and is threadedly connected to the lifting angle steel.

[0007] As a further improvement of this utility model, there are four bevel gear lifts, which are respectively located at the four corners of the mounting frame. The drive motor is located between two bevel gear lifts and is coaxially fixed with the input shaft of the two bevel gear lifts through a gearbox. The linkage shafts of the other two bevel gear lifts are coaxial with the linkage shafts of the two bevel gear lifts located on one side of the drive motor.

[0008] The beneficial effects of this utility model are as follows: the linkage structure of multiple mounting rods and lifting angle steel enables the overall synchronous lifting of the crossbeam, ensuring uniform distribution of printing pressure; the linkage system of the bevel gear lift with four corners symmetrical arrangement and drive motor improves the synchronous accuracy of lifting and the rigidity of the structure, reducing the registration deviation caused by printing vibration; the drive device achieves multi-axis synchronous transmission through the gearbox, simplifying the power layout and reducing energy consumption; the bevel gear lift and threaded connection structure, together with the lifting angle steel, have both high load-bearing capacity and fine adjustment function, extending the service life of the equipment; the modular design of the bevel gear lift facilitates independent inspection or replacement, reducing maintenance costs and improving maintenance efficiency. Attached Figure Description

[0009] Figure 1 This is an overall structural diagram of the automatic liftable crossbeam structure of this utility model. Detailed Implementation

[0010] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0011] Reference Figure 1 As shown, this embodiment of an automatically height-adjustable crossbeam structure includes a crossbeam 4 and a mounting frame 11. The mounting frame 11 is fixed to an external base, and the crossbeam 4 is provided with several mounting rods 43, the ends of which are connected to the mounting frame 11 in a height-adjustable manner. This structure achieves the vertical movement of the crossbeam 4 above the base 1 through the lifting and lowering action of the mounting rods 43. By controlling the height of the crossbeam through the synchronous lifting and lowering of multiple mounting rods, the distance between the printing unit and the substrate can be quickly adjusted to adapt to different printing thickness requirements. Furthermore, the multi-point support structure enhances the stability of the crossbeam and also enables stable height adjustment of the crossbeam 4.

[0012] Furthermore, this embodiment provides a lifting and adjusting component structure. A lifting angle steel 12 that can be raised and lowered is provided on the side of the mounting frame 11. The end of the mounting rod 43 is fixed to the upper surface of the lifting angle steel 12 by bolts, and a driving device 13 is provided on the top of the mounting frame 11. In this structure, the lifting angle steel 12 provides an adjustable mounting plane for the mounting rod. The working principle is that the driving device controls the vertical movement of the lifting angle steel, thereby driving the entire mounting rod to rise and fall. The bolted connection method facilitates installation and maintenance, and the angle steel structure of the lifting angle steel 12 has high bending strength, which can effectively distribute the load of the crossbeam. In this embodiment, the lower side of the lifting angle steel 12 is provided with two mutually spaced triangular reinforcing ribs to increase the supporting strength of the lifting angle steel 12.

[0013] Furthermore, this embodiment provides a transmission mechanism for the drive device 13. It includes a drive motor 131 and multiple bevel gear lifters 132. Each bevel gear lifter 132 is correspondingly positioned at the connection point between the mounting frame 11 and the lifting angle steel 12. Its input shaft is connected to the drive motor, and its output shaft passes through the mounting frame 11 and forms a threaded engagement with the lifting angle steel 12. The working principle is to convert the motor torque into vertical lifting force through the bevel gear set. The bevel gear transmission has high transmission efficiency, and the threaded engagement allows for precise micron-level height adjustment. Simultaneously, the parallel structure of the multiple bevel gear lifters 132 ensures synchronous movement of each support point.

[0014] Furthermore, this embodiment provides a four-corner synchronous drive layout. Four bevel gear lifts 132 are distributed at the four corners of the mounting frame 11. The drive motor 131 drives two lifts on each side simultaneously through a gearbox, while the other two lifts achieve synchronous transmission through a linkage shaft. This structure forms a stable support frame through a spatially symmetrical layout. The motor power is distributed to each lift through the gearbox, and the linkage shaft ensures consistent movement at the four corners. The four-point synchronous lifting effectively prevents beam skew, and only one drive motor 131 is required, reducing the overall equipment cost.

[0015] In summary, the automatic liftable beam structure of this embodiment, through the setting of the mounting rod 43, can form four connection points on the beam 4, thereby enabling the beam 4 to move up and down above the base.

[0016] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automatically lifting beam structure, comprising a beam (4) and a mounting frame (11), wherein the mounting frame (11) is fixedly mounted on an external base, characterized in that: Several mounting rods (43) are fixed on the crossbeam (4). The ends of the mounting rods (43) are mounted on the mounting frame (11) in a liftable manner to drive the crossbeam (4) to move up and down above the base.

2. The automatically lifting and lowering crossbeam structure according to claim 1, characterized in that: The mounting bracket (11) has a lifting angle steel (12) that can be raised and lowered on its side. The end of the mounting rod (43) is fixed to the upper side of the lifting angle steel (12) by bolts. The upper side of the mounting bracket (11) is provided with a driving device (13) for driving the lifting angle steel (12) to rise and fall.

3. The automatically lifting and lowering crossbeam structure according to claim 2, characterized in that: The drive device (13) includes a drive motor (131) and a plurality of bevel gear lifters (132). The plurality of bevel gear lifters (132) are respectively installed on the mounting frame (11) at the position relative to the lifting angle steel (12). The bevel gear lifter (132) has an input shaft and an output shaft. The input shaft is linked with the drive motor (131), and the output shaft passes downward through the mounting frame (11) and is threadedly connected to the lifting angle steel (12).

4. The automatically lifting and lowering crossbeam structure according to claim 3, characterized in that: The bevel gear lift (132) is provided in four positions, which are located at the four corners of the mounting frame (11). The drive motor (131) is located between two bevel gear lifts (132) and is fixed coaxially with the input shaft of the two bevel gear lifts (132) through a gearbox. The linkage shafts of the other two bevel gear lifts (132) are coaxially with the linkage shafts of the two bevel gear lifts (132) located on one side of the drive motor (131).

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