Printing trolley rotating device

Abstract

The utility model discloses a printing trolley rotating device of a rotary printing machine. The printing trolley rotating device comprises a cross beam stretching across an external conveying belt, a rotating shaft arranged in the middle of the upper side of a printing trolley and a locking device arranged on the upper side of the printing trolley. A sliding base is arranged on the lower side edge of the cross beam in a sliding mode, the rotating shaft is rotatably installed on the sliding base, and the angle of the printing trolley after rotation is locked through a locking device. According to the printing trolley rotating device of the rotary printing machine, the printing trolley can rotate flexibly, the requirements for different printing angles are met, meanwhile, the pressure on the rotating shaft part is small, and the rotating shaft part is not prone to being damaged.

Description

Technical Field

[0001] This utility model relates to a digital printing machine, and more specifically to a printing carriage rotation device. Background Technology

[0002] Currently, corrugated paper printing adapts to different batch sizes by setting a rotating printing carriage on a suction platform. Because the printing carriage needs to move and rotate during the printing process, the existing solution is to set a crossbeam above the suction platform, and then slide a movable base on the side of the crossbeam. The printing carriage is rotatably mounted on the movable base via a hinge shaft, and then the printing carriage is positioned by a pin positioning structure after being rotated. However, the above method requires manual operation, which seriously affects the efficiency of mode switching. In addition, the overall weight of the printing carriage is relatively heavy, and the hinge shaft is under a large load when the printing carriage is rotated, which is prone to damage over time. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a printing carriage rotation device that makes the hinge shaft of the printing carriage less prone to damage and enables automatic rotation switching.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a printing carriage rotation device, comprising a crossbeam spanning an external suction unit and a power shaft disposed in the upper middle part of the printing carriage, wherein a sliding base is slidably provided on the lower side of the crossbeam, and the power shaft is rotatably mounted on the sliding base to drive the printing carriage to rotate below the sliding base.

[0005] As a further improvement of this utility model, a locking device is provided on the upper side of the printing carriage, which locks and positions the printing carriage after it rotates.

[0006] As a further improvement of this utility model, the locking device includes a magnetic locking block and two locking electromagnets. The two locking electromagnets are fixedly installed on the upper side of the printing carriage, and the magnetic locking block is fixedly installed on the lower side of the sliding base. After the printing carriage rotates into position, one of the locking electromagnets magnetically attracts the magnetic locking block to lock and position the printing carriage.

[0007] As a further improvement of this utility model, the sliding base includes a base plate and a plurality of base sliders. The plurality of base sliders are fixedly mounted on the upper side of the base plate, and a slide rail is fixed to the lower side of the crossbeam. The plurality of base sliders are slidably disposed on the slide rail, so that the base plate is slidably disposed below the crossbeam. A linear motor stator is also fixed to the crossbeam near the slide rail, parallel to the slide rail, and a linear motor mover is disposed on the upper side of the base plate below the linear motor stator.

[0008] As a further improvement of this utility model, a motor and a reducer are provided on the power shaft. The reducer is mounted on the sliding base, and the motor is mounted on the reducer. The reducer has an output shaft, and the printing carriage is mounted on the output shaft.

[0009] The beneficial effects of this utility model are that the power shaft can realize the automatic rotation of the printing carriage and the angle locking after rotation. The use of a locking device makes the printing carriage more stable during the printing process and the accuracy after rotation is higher. At the same time, the power shaft, which is the core of rotation, is set in the middle of the printing carriage. Compared with the existing technology, this can effectively avoid the problem of excessive load on the hinge shaft caused by unilateral flipping, which leads to a short service life of the overall equipment. Attached Figure Description

[0010] Figure 1 This is an overall structural diagram of the printing carriage rotating device of this utility model;

[0011] Figure 2 This is a structural diagram of the sliding base section. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0013] Reference Figure 1As shown, a printing carriage rotation device of this embodiment includes a crossbeam 4 spanning an external suction unit and a power shaft 31 disposed in the upper middle part of the printing carriage. A sliding base 5 is slidably provided on the lower side of the crossbeam 4. The power shaft 31 is rotatably mounted on the sliding base 5 to drive the printing carriage to rotate below the sliding base 5. A locking device 32 locks the angle of the rotated printing carriage. The combined structure of the power shaft 31 and the locking device 32 achieves the effect of driving the printing carriage to rotate. The power shaft 31 can... By employing a servo motor, the rotation angle can be automatically positioned after rotation, achieving high-precision automated rotation. Compared to the side-flipping method used in the prior art, the rotation of the printing carriage is more stable and reliable, and the centrifugal force on the rotating power shaft is also smaller, thus effectively achieving a longer lifespan for the rotating power shaft of the printing carriage. In addition, to increase the stability of the printing carriage during printing, this embodiment uses a locking device 32 on the upper side of the printing carriage to further lock and position the rotating printing carriage.

[0014] Furthermore, this embodiment provides a locking device 32, which includes a magnetic locking block 322 and two locking electromagnets 321. The two locking electromagnets 321 are fixedly installed on the upper side of the printing carriage, and the magnetic locking block 322 is fixedly installed on the lower side of the sliding base 5. After the printing carriage rotates into position, one of the locking electromagnets 321 magnetically attracts the magnetic locking block 322 to lock the printing carriage in place. On the one hand, the locking electromagnet 321 and the magnetic locking block 322 are locked by magnetic attraction. Compared with the traditional mechanical locking structure, its response speed is faster, and the locking action can be completed quickly at the moment the printing carriage rotates into position, which greatly improves work efficiency. On the other hand, the magnetic attraction method avoids wear caused by mechanical contact, extends the service life of the locking device 32, and reduces maintenance costs.

[0015] Furthermore, this embodiment provides a sliding base 5 structure as shown below. The sliding base 5 includes a base plate 51 and several base sliders 52. The several base sliders 52 are fixedly installed on the upper side of the base plate 51. A slide rail 41 is fixed to the lower side of the crossbeam 4. The several base sliders 52 are slidably arranged on the slide rail 41 so that the base plate 51 is slidably positioned below the crossbeam 4. A linear motor stator 42 is also fixed on the crossbeam 4 near the slide rail 41, parallel to the slide rail 41. A linear motor mover 53 is provided on the upper side of the base plate 51 below the linear motor stator 42. When the linear motor mover 53 is energized, it generates an electromagnetic interaction with the linear motor stator 42, driving the base plate 51 to slide on the slide rail 41 via the base sliders 52. This achieves precise and stable sliding of the base plate 51 below the crossbeam 4, facilitating the adjustment of the equipment position.

[0016] Furthermore, in this embodiment, the drive of the power shaft 31 is mainly achieved through a motor and a reducer. The power shaft 31 is equipped with a motor and a reducer. The reducer is mounted on the sliding base 5, and the motor is mounted on the reducer. The reducer has an output shaft, and the printing carriage is mounted on the output shaft. The reducer can achieve a larger output torque, thereby better driving the printing carriage to rotate.

[0017] In summary, the printing carriage rotation device of this embodiment, by setting the power shaft 31 in the upper middle part of the printing carriage, can effectively reduce the burden on the power shaft 31 and achieve automatic rotation switching compared to the side-flipping method in the prior art.

[0018] 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. A printing carriage rotation device, characterized in that: It includes a crossbeam (4) spanning the external suction unit and a power shaft (31) located in the upper middle part of the printing carriage. The lower side of the crossbeam (4) is slidably provided with a sliding base (5). The power shaft (31) is rotatably mounted on the sliding base (5) to drive the printing carriage to rotate below the sliding base (5).

2. The printing carriage rotating device according to claim 1, characterized in that: A locking device (32) is provided on the upper side of the printing carriage. The locking device (32) locks and positions the printing carriage after it rotates.

3. The printing carriage rotating device according to claim 2, characterized in that: The locking device (32) includes a magnetic locking block (322) and two locking electromagnets (321). The two locking electromagnets (321) are fixedly installed on the upper side of the printing carriage, and the magnetic locking block (322) is fixedly installed on the lower side of the sliding base (5). After the printing carriage is rotated into position, one of the locking electromagnets (321) magnetically attracts the magnetic locking block (322) to lock and position the printing carriage.

4. The printing carriage rotating device according to claim 1 or 2, characterized in that: The sliding base (5) includes a base plate (51) and several base sliders (52). Several base sliders (52) are fixedly installed on the upper side of the base plate (51). A slide rail (41) is fixed on the lower side of the crossbeam (4). Several base sliders (52) are slidably arranged on the slide rail (41) so that the base plate (51) can be slidably arranged below the crossbeam (4). A linear motor stator (42) is also fixed on the crossbeam (4) near the slide rail (41) and is parallel to the slide rail (41). A linear motor mover (53) is provided on the upper side of the base plate (51) below the linear motor stator (42).

5. The printing carriage rotating device according to claim 1 or 2, characterized in that: The power shaft (31) is equipped with a motor and a reducer. The reducer is mounted on the sliding base (5). The motor is mounted on the reducer. The reducer has an output shaft, and the printing carriage is mounted on the output shaft.

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