CN113263845A

CN113263845A - Printer dolly elevating gear

Info

Publication number: CN113263845A
Application number: CN202110584209.7A
Authority: CN
Inventors: 孙明建; 程亮; 詹彤宇
Original assignee: Beijing Byhy Technology Co ltd
Current assignee: Beijing Byhy Technology Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-17

Abstract

The invention discloses a lifting device for a trolley of a printer, which comprises: the device comprises a rack, a lifting mechanism and a lifting mechanism, wherein the rack comprises an upper cross beam, a lower cross beam and two side vertical plates, and the two side vertical plates are connected through the upper cross beam and the lower cross beam; the printing platform comprises a platform and a platform bracket connected with the platform; the trolley comprises a spray head bottom plate, a trolley back plate, two trolley side plates, a trolley shield and a sliding block connecting plate; the transmission unit is arranged on the rack and used for providing power for lifting of the trolley; and the transmission unit is connected with the trolley through the limiting guide unit. The effect is as follows: by the printer trolley lifting device, the trolley is stably lifted; the structure is compact, and the occupied space is small; the equipment cost is saved; the printing requirements of different amplitudes are met, and the application range is wider; the trolley is easier to disassemble and assemble.

Description

Printer dolly elevating gear

Technical Field

The invention relates to the technical field of ink-jet printing, in particular to a lifting device for a printer trolley.

Background

In the field of ink-jet printing, in some occasions, a trolley for installing a spray head of a printer is made into a liftable structure relative to a printing platform, so that a user can observe the ink outlet condition of the spray head conveniently and the installation, replacement, cleaning and maintenance of the spray head are facilitated; the structure mainly comprises a trolley, a stepping motor, a speed reducer, a coupling, a screw rod assembly, a double-guide-rail assembly, a guide rail mounting plate and the like.

The general driving motor is fixed on a motor mounting plate of the trolley above the printing platform by a screw and is connected with a speed reducer, the speed reduction and the torque increase are realized, and an output shaft of the speed reducer is coaxial with an input shaft of a lead screw and is connected by a coupling; the ball screw is a finished product part, the shaft necks at two ends are respectively provided with a bearing seat for supporting and fixing the whole ball screw, the threaded part is provided with a nut, and the end surface of the nut is provided with a bolt hole connected with a driven element; the guide rail mounting plate is aligned and parallel with the trolley back plate at a certain distance, the guide rail is arranged on the guide rail mounting plate, the guide rail mounting plate is arranged at the central line position of the guide rail mounting plate, the fixed end bearing seat is arranged on the upper part, the movable end bearing seat is arranged on the lower part, and the two guide rails are parallel and symmetrically arranged on two sides relative to the guide rail; the lead screw and the guide rail are both vertical to the printing platform; the screw nut is screwed with the nut mounting seat on the trolley back plate through a screw, and the guide rail sliding block is also screwed with the trolley back plate through a screw; the motor drives the lead screw to rotate through the speed reducer, and the lead screw nut drives the trolley to lift along the guide rail; the entire device is shown in fig. 3.

Although the devices can realize the lifting of the trolley, the lead screw guide rail is often arranged at the position of one side of the trolley and belongs to a cantilever beam type structure, and the gravity of the trolley forms moment to a supporting point; when the wide width is printed, a plurality of spray heads are required to be spliced together for use, the area of the spray head mounting base plate is large, the weight of the trolley is increased, and the phenomenon of hanging or shaking is easy to occur due to the increase of the weight. In order to ensure the stable running and the printing quality of the trolley, the models of a motor, a speed reducer, a guide rail lead screw, a connecting screw, a profile and the like are increased, so that the cost is high, the weight is increased, and the size is large.

Disclosure of Invention

Therefore, the invention provides a lifting device for a printer trolley, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

according to a first aspect of the invention, a printer carriage lifting device comprises:

the device comprises a rack, a lifting mechanism and a lifting mechanism, wherein the rack comprises an upper cross beam, a lower cross beam and two side vertical plates, and the two side vertical plates are connected through the upper cross beam and the lower cross beam;

a printing platform comprising a platform and a platform carriage connected to the platform;

the trolley comprises a spray head bottom plate, a trolley back plate, two trolley side plates, a trolley shield and a sliding block connecting plate;

the transmission unit is arranged on the rack and used for providing power for lifting of the trolley;

and the transmission unit is connected with the trolley through the limiting guide unit.

Furthermore, the transmission unit comprises a servo motor, a double-output-shaft right-angle planetary reducer, a transmission shaft, a corner commutator reducer, a ball screw and a screw nut mounting seat; the upper cross beam is provided with the servo motor, a rotating shaft of the servo motor is in transmission connection with an input shaft of the double-output-shaft right-angle planetary reducer, two output shafts of the double-output-shaft right-angle planetary reducer are in transmission connection with the transmission shafts respectively, each transmission shaft is in transmission connection with an input shaft of the corner commutator reducer, each output shaft of the corner commutator reducer is in transmission connection with the ball screw, the ball screw is fastened on the side vertical plate of the rack through screws, and a screw nut of the ball screw is connected on the slider connecting plate through the screw nut mounting seat.

Furthermore, the transmission unit further comprises a diaphragm type coupler, two output shafts of the double-output-shaft right-angle planetary reducer are respectively connected with the transmission shaft through the diaphragm type coupler, and each transmission shaft is in transmission connection with the input shaft of the corner commutator reducer through the diaphragm type coupler.

Furthermore, the transmission unit further comprises a double-diaphragm coupling, and an output shaft of the corner commutator reducer is in transmission connection with the ball screw through the double-diaphragm coupling.

Further, the lead screw nut installing seat further comprises a limiting baffle and a limiting sensor, the limiting baffle is installed on the lead screw nut installing seat, and the limiting sensor is installed on the side vertical plate.

Furthermore, the limiting guide unit comprises linear guide rails and sliding blocks, the linear guide rails are screwed in the guide rail mounting grooves of the side vertical plates through screws, each linear guide rail is connected with a plurality of sliding blocks in a sliding mode, and the sliding blocks are screwed with the sliding block connecting plates.

Further, two linear guide rails are arranged on the sliding block connecting plate and are parallel and symmetrical relative to the ball screw.

Further, the transmission shaft extends in the horizontal direction, and the ball screw extends in the vertical direction.

Furthermore, the servo motor operates to drive the ball screw to rotate, the screw nut on the ball screw drives the slider connecting plate to lift along the linear guide rail, the trolley also lifts, and when the limiting baffle on the screw nut mounting seat operates to the limiting sensor arranged on the side vertical plate, the servo motor with the band-type brake receives a signal and stops operating.

Further, the frame still includes a plurality of foot cups, and a plurality of the foot cup sets up in the below of frame.

The invention has the following advantages: by the printer trolley lifting device, the trolley is stably lifted; the structure is compact, and the occupied space is small; the equipment cost is saved; the printing requirements of different amplitudes are met, and the application range is wider; the trolley is easier to disassemble and assemble.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a perspective view of a carriage lifting device of a printer according to some embodiments of the present invention.

Fig. 2 is a partial structural view of a lifting device of a printer carriage according to some embodiments of the present invention.

Fig. 3 is a block diagram of the prior art.

In the figure: 100. the device comprises a rack, 110, a side vertical plate, 200, a printing platform, 300, a trolley, 310, a sliding block connecting plate, 400, a transmission unit, 410, a servo motor, 420, a double-output-shaft right-angle planetary reducer, 430, a diaphragm type coupler, 440, a transmission shaft, 450, a corner commutator reducer, 460, a double-diaphragm coupler, 470, a ball screw, 480, a screw nut mounting seat, 490, a limit baffle, 500, a limit guide unit, 510, a linear guide rail, 520 and a limit sensor.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In an embodiment of the first aspect of the present invention as shown in fig. 1 to 2, a printer carriage lifting device includes: the frame 100, the frame 100 includes an upper beam, a lower beam and two side vertical plates 110, the two side vertical plates 110 are connected through the upper beam and the lower beam; printing platform 200, wherein printing platform 200 comprises a platform and a platform bracket connected with the platform; the trolley 300, the trolley 300 comprises a nozzle bottom plate, a trolley 300 back plate, two side plates of the trolley 300, a trolley 300 shield and a sliding block connecting plate 310; the transmission unit 400, the transmission unit 400 is installed on the frame 100, and the transmission unit 400 is used for providing power for the lifting of the trolley 300; the limit guide unit 500 and the transmission unit 400 are connected with the trolley 300 through the limit guide unit 500.

In the above embodiment, it should be noted that the transmission unit 400 is provided with the servo motor 410 as a power source, and transmits power to the cart 300 through the transmission assembly, so as to realize the lifting movement of the cart 300.

The technical effects achieved by the above embodiment are as follows: by the printer trolley lifting device, the trolley is stably lifted; the structure is compact, and the occupied space is small; the equipment cost is saved; the printing requirements of different amplitudes are met, and the application range is wider; the trolley is easier to disassemble and assemble.

Alternatively, as shown in fig. 1 to 2, in some embodiments, the transmission unit 400 includes a servo motor 410, a dual output shaft right-angle planetary reducer 420, a transmission shaft 440, a rotational angle commutator reducer 450, a ball screw 470, and a screw nut mount 480; the servo motor 410 is installed on the upper cross beam, a rotating shaft of the servo motor 410 is in transmission connection with an input shaft of the double-output-shaft right-angle planetary reducer 420, two output shafts of the double-output-shaft right-angle planetary reducer 420 are in transmission connection with transmission shafts 440 respectively, each transmission shaft 440 is in transmission connection with an input shaft of a corner commutator reducer 450, an output shaft of each corner commutator reducer 450 is in transmission connection with a ball screw 470, the ball screws 470 are fastened on the side vertical plates 110 of the rack 100 through screws, and a screw nut of each ball screw 470 is connected on the slider connecting plate 310 through a screw nut installing seat 480.

In the above embodiment, it should be noted that the ball screw 470 is threadedly connected with a screw nut, the screw nut is fixed on the screw nut mounting seat 480, and the screw nut mounting seat 480 is mounted on the slider connecting plate 310, so that the rotation power of the ball screw 470 is converted into the linear reciprocating motion of the cart 300.

Alternatively, as shown in fig. 1 to 2, in some embodiments, the transmission unit 400 further includes a diaphragm coupling 430, two output shafts of the dual-output-shaft right-angle planetary reducer 420 are respectively connected with the transmission shafts 440 through the diaphragm couplings 430, and each of the transmission shafts 440 is in transmission connection with the input shaft of the angle-of-rotation commutator reducer 450 through the diaphragm couplings 430.

The beneficial effects of the above alternative embodiment are: through setting up diaphragm coupling 430, guaranteed driven stability.

Optionally, as shown in fig. 1 to 2, in some embodiments, the transmission unit 400 further includes a double diaphragm coupling 460, and the output shaft of the angular reverser reducer 450 is in transmission connection with the ball screw 470 through the double diaphragm coupling 460.

In the above optional embodiment, it should be noted that, the servo motor 410 mounted on the upper cross beam of the rack 100 realizes first 90 ° reversing deceleration transfer after passing through the dual-output-shaft right-angle planetary reducer 420, two output shafts of the dual-output-shaft right-angle planetary reducer 420 are respectively connected with the left and right two transmission shafts 440 through two diaphragm couplings 430, each transmission shaft 400 is connected with the corner commutator reducer 450 through the diaphragm coupling 430 to realize second 90 ° reversing deceleration, and the output shaft of the diaphragm coupling 430 is connected with the ball screw 470 through the dual-diaphragm coupling 460; the ball screw 470 is screwed on the side vertical plate 110 of the frame by screws, the axis of the ball screw 470 is coincident with the longitudinal plane of the "X" axis, is symmetrical about the longitudinal plane of the "Y" axis, and is perpendicular to the printing platform 200; the "X" axis longitudinal plane and the "Y" axis longitudinal plane are the common longitudinal central planes of the cart 300 and the printing platform 200, and are hereinafter referred to as the X plane and the Y plane; after the two times of 90-degree reversing, the power direction is changed from horizontal to vertical at two sides.

The beneficial effects of the above alternative embodiment are: through setting up double diaphragm shaft coupling 460, guaranteed driven stability.

Optionally, as shown in fig. 1 to 2, in some embodiments, the positioning device further includes a limiting baffle 490 and a limiting sensor 520, the limiting baffle 490 is installed on the screw nut installation seat 480, and the limiting sensor 520 is installed on the lateral vertical plate 110.

In the above alternative embodiment, it should be noted that the limit stop 490 is connected to the lead screw nut mounting seat 480 by a screw.

The beneficial effects of the above alternative embodiment are: through setting up limit baffle 490 and limit sensor 520, realized the real-time supervision to screw nut mount pad 480 shift position.

Alternatively, as shown in fig. 1 to 2, in some embodiments, the limit guide unit 500 includes a linear guide 510 and a slider linear guide 510 screwed into a guide mounting groove of the side vertical plate 110 by screws, and a plurality of sliders are slidably coupled to each linear guide 510 and screwed to the slider coupling plate 310.

Preferably, the two output shafts of the double-output-shaft right-angle planetary reducer 420 coincide with the X-plane, are reversed at right angles by the corner reverser reducer 450, the ball screw 470 coincides with the X-plane, is symmetrical about the Y-plane and is perpendicular to the printing platform 200, and the linear guide rails 510 are symmetrically distributed on two sides of the ball screw 470 in parallel.

The beneficial effects of the above alternative embodiment are: the slider connecting plate 310 is connected with the slider of the linear guide 510 and the side plate of the trolley 300 at the same time, so that the limiting guide unit 500 is isolated from the trolley 300, the transitional connection effect is realized, and the whole assembly, disassembly and adjustment of the part of the trolley 300 are facilitated.

Alternatively, as shown in fig. 1 to 2, in some embodiments, two linear guides 510 are disposed on the slider connecting plate 310, and the two linear guides 510 are parallel-symmetrical with respect to the ball screw 470.

In the above alternative embodiment, it should be noted that, in addition, the linear guide 510 on the slider connecting plate 310 may be provided in other numbers according to the requirement.

The beneficial effects of the above alternative embodiment are: by arranging the two linear guide rails 510 to be symmetrical in parallel with the ball screw 470, the lifting and moving stability of the trolley 300 is improved, and the stress is more uniform in the moving process.

Alternatively, as shown in fig. 1-2, in some embodiments, the drive shaft 440 extends in a horizontal direction and the ball screw 470 extends in a vertical direction.

In the above alternative embodiment, it should be noted that the transmission shaft 440 is disposed perpendicular to the ball screw 470.

The beneficial effects of the above alternative embodiment are: through the structural arrangement of this embodiment, stable power transmission's right angle switching-over has been realized.

Alternatively, as shown in fig. 1 to 2, in some embodiments, the servo motor 410 operates to drive the ball screw 470 to rotate, the screw nut on the ball screw 470 drives the slider connecting plate 310 to ascend and descend along the linear guide 510, the cart 300 also ascends and descends, and when the limit baffle 490 on the screw nut mounting seat 480 runs to the limit sensor 520 mounted on the side vertical plate 110, the servo motor 410 with the band-type brake receives a signal and stops running.

The beneficial effects of the above alternative embodiment are: the whole device of this embodiment operates steadily, and operating efficiency is showing and is promoting.

Optionally, as shown in fig. 1-2, in some embodiments, the rack 100 further comprises a plurality of goblets, the plurality of goblets being disposed below the rack 100.

In the above alternative embodiment, it should be noted that the height of the frame 100 can be adjusted by the foot cup.

The beneficial effects of the above alternative embodiment are: by providing a plurality of foot cups, the leveling of the rack 100 can be achieved while achieving a better supporting effect.

In order to eliminate the eccentricity caused by the gravity of the trolley 300 and ensure the stable operation of the trolley 300, the power of the servo motor 410 is decelerated by 90 degrees through the double-output-shaft right-angle planetary reducer 420 and then reversed, decelerated by 90 degrees through the corner reverser reducer 450 again and transmitted to the ball screw 470, and the ball screw 470 drives the trolley 300 to lift along the linear guide rails 510 on the two sides; the power transmission path of the entire device extends along the "X" plane and is symmetrical about the "Y" plane.

In some implementations, the servo motor 410 is horizontally mounted, the motor is used to replace the motor for driving, the transmission shafts 440 with different lengths are used, and the sliding blocks are directly screwed on the two side plates of the trolley 300, which can be regarded as a type of the device structure of the present invention.

In the above embodiments, preferably, in order to save materials and space, the ball screw 470 and the linear guide 510 are mounted on the side vertical plate 110 of the frame 100, and the slider connecting plate 310 is fastened with both side plates of the cart 300, one member has multiple functions.

In the above embodiments, the length of the transmission shaft 440 may be selected by itself, preferably, in order to adapt the entire lifting device to printing apparatuses of different widths.

In the above embodiments, it is preferable that the slider connection plate 310 is added to make the carriage 300 and the position limiting guide unit 500 be connected in a transitional manner, so as to facilitate the detachment and adjustment of the entire part of the carriage 300.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for descriptive purposes only and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the structures may be changed or adjusted without substantial technical change.

Claims

1. A printer trolley lifting device is characterized by comprising:

the device comprises a rack (100), wherein the rack (100) comprises an upper cross beam, a lower cross beam and two side vertical plates (110), and the two side vertical plates (110) are connected through the upper cross beam and the lower cross beam;

a printing platform (200), the printing platform (200) comprising a platform and a platform carriage connected to the platform;

the trolley (300) comprises a spray head bottom plate, a trolley (300) back plate, two side plates of the trolley (300), a trolley (300) shield and a sliding block connecting plate (310);

the transmission unit (400), the transmission unit (400) is installed on the rack (100), and the transmission unit (400) is used for providing power for the lifting of the trolley (300);

the limiting and guiding unit (500) is used for connecting the transmission unit (400) with the trolley (300) through the limiting and guiding unit (500).

2. The printer carriage lifting device according to claim 1, wherein the transmission unit (400) comprises a servo motor (410), a double output shaft right-angle planetary reducer (420), a transmission shaft (440), a corner reverser reducer (450), a ball screw (470) and a screw nut mount (480); the upper cross beam is provided with the servo motor (410), a rotating shaft of the servo motor (410) is in transmission connection with an input shaft of the double-output-shaft right-angle planetary reducer (420), two output shafts of the double-output-shaft right-angle planetary reducer (420) are in transmission connection with the transmission shafts (440) respectively, each transmission shaft (440) is in transmission connection with an input shaft of the corner commutator reducer (450), an output shaft of each corner commutator reducer (450) is in transmission connection with the ball screw (470), the ball screw (470) is fastened on the side vertical plate (110) of the rack (100) through screws, and a screw nut of the ball screw (470) is connected on the slider connecting plate (310) through the screw nut mounting seat (480).

3. The printer carriage lifting device according to claim 2, wherein the transmission unit (400) further comprises a diaphragm coupling (430), two output shafts of the double-output-shaft right-angle planetary reducer (420) are respectively connected with the transmission shafts (440) through the diaphragm couplings (430), and each of the transmission shafts (440) is in transmission connection with the input shaft of the corner commutator reducer (450) through the diaphragm couplings (430).

4. The printer carriage lifting device according to claim 3, wherein the transmission unit (400) further comprises a double diaphragm coupling (460), and the output shaft of the angle reverser reducer (450) is in transmission connection with the ball screw (470) through the double diaphragm coupling (460).

5. The printer trolley lifting device as claimed in claim 4, further comprising a limit baffle (490) and a limit sensor (520), wherein the limit baffle (490) is mounted on the lead screw nut mounting seat (480), and the limit sensor (520) is mounted on the side vertical plate (110).

6. The printer trolley lifting device as claimed in claim 5, wherein the limit guide unit (500) comprises a linear guide rail (510) and a sliding block, the linear guide rail (510) is screwed in a rail mounting groove of the side vertical plate (110) through a screw, each linear guide rail (510) is slidably connected with a plurality of sliding blocks, and the plurality of sliding blocks are screwed with the sliding block connecting plate (310).

7. The printer carriage lifting device as claimed in claim 6, wherein two linear guides (510) are provided on the slider connecting plate (310), and the two linear guides (510) are parallel-symmetrical with respect to the ball screw (470).

8. The printer carriage lifting device of claim 7, wherein the drive shaft (440) extends in a horizontal direction and the ball screw (470) extends in a vertical direction.

9. The printer trolley lifting device as claimed in claim 8, wherein the servo motor (410) operates to drive the ball screw (470) to rotate, a screw nut on the ball screw (470) drives the slider connecting plate (310) to lift along the linear guide rail (510), the trolley (300) also lifts, and when the limit baffle (490) on the screw nut mounting seat (480) runs to the limit sensor (520) mounted on the side vertical plate (110), the servo motor (410) with the band-type brake receives a signal and stops running.

10. The printer cart lifting device according to claim 1, wherein the frame (100) further comprises a plurality of goblets, the plurality of goblets being disposed below the frame (100).