CN101130311A - Mobile head multifunctional flatbed inkjet printing machine - Google Patents

Abstract

The invention discloses a multi-functional flat-bed ink-jet printing machine with mobile heads. Including frame base, ball screw, ball screw bearing seat, ball screw moving nut, linear guide rail, linear guide rail slider, machine head assembly, machine head support beam, machine head connecting beam, printing plate, plate bracket, double Set of ink cartridges and servo motors. The structural features are: the head assembly is fixed with the head connecting beam through the head support beam, the center point of the head connecting beam is connected with the ball screw moving nut, and the two ends of the head connecting beam pass through four linear guide rail sliders It is supported on two parallel linear guide rails distributed on both sides of the frame base; the ball screw is fixed on the frame base through the screw bearing seat, and one end is directly connected with the servo motor, and the ball screw drives the ball screw to move nuts. Structural advantages: The head assembly is driven by the servo motor directly connected with the ball screw, which can complete inkjet printing at precise positions and reduce the actual space occupied by the machine. The design is reasonable, novel and simple.

Description

Mobile head multifunctional flatbed inkjet printing machine

technical field

The invention relates to a digital flat-bed ink-jet printing machine, in particular to a multifunctional flat-bed ink-jet printing machine with movable heads. It is suitable for any inkjet printing area of limited length processing, especially digital printing of indoor/outdoor advertising products, ceramic tiles, textiles and leather and other limited length flat products.

Background technique

The principle of digital inkjet printing machines in the prior art is to use a controlled inkjet print head to spray ink on the printing medium to achieve the purpose of digital printing, but in the transmission mode of the medium, the pressure wheel and the friction wheel are mainly used. The structure and rubber roller drive structure. Due to the uneven force of the former when the medium is conveyed, especially when the medium is thin or soft, it is easy to distort or deform the medium, which seriously affects the printing quality; although the latter can make the medium evenly stressed in the printing area, but Since the tension of the fabric inside and outside the printing area is not the same, some media that are sensitive to deformation, such as knitted fabrics, will have pattern deformation due to the shrinkage of the media after printing; in addition, for non-bendable Plates or thicker media, such as ceramic sheets and leather, cannot be printed on this type of equipment. In order to solve this type of problem, a flat plate conveying method has appeared. However, in order to avoid the precision control problem caused by the large inertia of the mobile head assembly due to the need to overcome the large inertia of the mobile head assembly, the existing flat plate conveying technology mostly uses a fixed head assembly and a flat mobile body structure, but the moving flat plate in this structure It actually occupies twice the area of the fuselage, making it difficult to achieve large-format printing; at the same time, the height adjustment requirements of the nozzle also make the control mechanism more complicated by the way of lifting the head assembly.

Contents of the invention

The technical problem to be solved by the present invention is to change the way of pressure transmission in the original structure, and at the same time avoid the drawbacks of the existing non-pressure transmission method, which causes the actual occupation of the flat plate twice as much as the fuselage site due to the use of flat plate movement , to further reduce the structural complexity, so as to achieve the purpose of reducing the cost of digital printing and improving the quality of digital printing.

The technical solution adopted by the present invention to solve the above-mentioned problems is: use the servo motor to directly connect the ball screw to drive the ball screw to move the nut, and then drive the head assembly to fix the plate carrying the medium and move the head. Specifically including the frame base, ball screw, ball screw bearing seat, ball screw moving nut, linear guide rail, linear guide rail slider, machine head assembly, machine head support beam, machine head connecting beam, printing plate, plate support, Two sets of ink supply cartridges and servo motors, the head assembly is fixed to the head connecting beam through the head support beam, the center point of the head connecting beam is connected to the ball screw moving nut, and the two ends of the head connecting beam are connected by four Only the linear guide rail slider is supported on two parallel linear guide rails distributed on both sides of the frame base; the ball screw is fixed on the frame base through the screw bearing seat, one end of which is directly connected to the servo motor, and the ball screw Drive the ball screw to move the nut.

The technical solution adopted by the present invention is to change the original medium conveying mode of pressure conveying to flat conveying on the basis of inkjet printing, but what actually moves is not the flat plate itself carrying the medium, but the machine. The head assembly moves in reverse, which is equivalent to the effect of flat conveying, but shortens the actual footprint of the machine.

The distance between the printing nozzle and the medium of the present invention can be adjusted within a certain range, but the adjustment method is not to change the height of the printing nozzle, but to lower or raise the height of the printing platen.

The present invention adopts two sets of ink supply cartridges, which can be used alternately and continuously.

Compared with the prior art, the present invention has the following advantages and effects: 1. The structural design is reasonable and novel, and the non-pressurized conveying of flat plate conveyance replaces the original pressurized medium conveying, the medium conveying is more accurate and reliable, and the tension is smaller , more uniform; 2. Replace the movement of the flat plate with the real movement of the machine head, which reduces the actual occupied space of the equipment; 3. The scope of application is wider, making it possible to print garments on plate media or moderate thickness;

Description of drawings

Fig. 1 is a schematic side view of the structure of the present invention.

Detailed ways

The structure, working principle and working process of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, (1) is the frame base, (2) is the ball screw, (3) is the ball screw bearing seat, (4) is the moving nut of the ball screw, (5) is the linear guide, (6) is the linear guide rail slider, (7) is the machine head assembly, (8) is the machine head support beam, (9) is the machine head connecting beam, (10) is the printing plate, (11) is the plate support, ( 12) are two sets of ink supply cartridges, (13) are servo motors, (14) stud screws, and (15) are height-adjusting struts. The overall structure is: the nose assembly (7) is closely connected with the nose support beam (8) and is supported by it, the nose support beam (8) is fixed with the nose connection beam (9) again, and the nose connection beam (9) ) is connected with the ball screw moving nut (4), and the two ends of the head connecting beam (9) are two trapezoidal support plates, and each support plate is supported by two linear guide rail sliders (6), The linear guide rail slider (6) is engaged on two parallel linear guide rails through the "V" grooves on both sides of the linear guide rail (5), so the machine head assembly (7) is equivalent to being composed of two parallel linear guide rails. (5) Support, and can make linear reciprocating motion along the guide rail. The ball screw (2) is fixed on the frame base (1) through the screw bearing housing (3), and one end of it is directly connected with the servo motor (13), and the ball screw (2) is driven by the rotation of the motor, and then passed The ball screw moving nut (4) fixed on the central point of the head connecting beam (9) controls the head assembly (7) to perform linear reciprocating motion according to the control requirements.

The present invention adopts the reverse movement of the head assembly (7) to replace the existing flat plate movement, that is, when the embodiment is working, the flat plate carrying the medium is fixed, and the head assembly (7) is in the position of the servo motor (13) ball screw Driven by (2), it moves in the reverse direction along the linear guide rail (5), which is equivalent to the way in which the existing machine head is fixed and the flat plate carrying the medium moves forward.

Claims (6)

1. A multi-function flatbed inkjet printing machine with a mobile head, including a frame base (1), a ball screw (2), a ball screw bearing seat (3), a ball screw moving nut (4), a linear Guide rail (5), linear guide rail slider (6), machine head assembly (7), machine head support beam (8), machine head connecting beam (9), printing plate (10), plate support (11), double set Ink supply cartridge (12), servo motor (13); Its structural features are: the head assembly (7) is fixed with the head connecting beam (9) by the head support beam (8), and the head connecting beam (9) The center point is connected with the ball screw moving nut (4), and the two ends of the machine head connecting beam (9) are supported by two parallel linear guide rails ( 5); the ball screw (2) is fixed on the frame base (1) through the screw bearing (3), one end of which is directly connected to the servo motor (13), and the ball screw (2) drives the ball screw Bar travel nut (4). 2. The moving head type multifunctional flat-bed inkjet printing machine according to claim 1, characterized in that: the head moving mode, that is, the servo motor (13) is directly connected with the ball screw (2) to drive the ball screw The nut (4) is moved, which in turn drives the handpiece assembly (7). 3. The mobile head mobile multi-function flatbed inkjet printing machine according to claim 1, characterized in that: the printing flatbed (10) is placed flat on the flatbed support (11), and the flatbed support (11) is adjusted in height by four Strut (15) is fixed on the frame base, and a pair of stud screws (14) are arranged on every height-adjusting screw rod, can adjust the level and the height of flat support (11) conveniently. 4. The multifunctional flatbed inkjet printing machine with mobile head according to claim 1, characterized in that: two sets of ink supply cartridges (12) are respectively provided at both ends of the head assembly (7), which can be used alternately and continuously. 5. The mobile-head multi-function flatbed inkjet printing machine according to claim 1, characterized in that: the printing flatbed (10) can be combined with a plurality of flatbeds of different sizes to meet printing media of different sizes. 6. According to claim 1 and claim 5, the mobile head multifunctional flatbed inkjet printing machine is characterized in that: the maximum combined print size of the printing flatbed (10) is slightly larger than the maximum nominal print size of the digital inkjet printing machine size.

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