CN204659166U - A small screen printing machine - Google Patents

Abstract

The utility model discloses a small screen printing machine, including a frame, a sliding guide rail is provided on the frame, a platform device sliding along the sliding guide rail is provided on the sliding guide rail, a driving device fixed on the frame is connected to the bottom of the platform device, a printing device is mounted on the frame, and the printing device is located above the platform device; the driving device includes a servo motor, a synchronous belt and two synchronous pulleys, the synchronous belt is arranged between the two synchronous pulleys, the synchronous belt is arranged along the sliding guide rail, and the platform device is connected to the synchronous belt. The platform device provided in the utility model is driven by the driving device, the driving device adopts a servo motor and a synchronous belt, the transmission is accurate and the structure is simple, the movement accuracy of the platform device is effectively guaranteed, the platform device can automatically adjust the position, and high-precision printing can be achieved; the overall structure of the machine is simple and occupies a small space.

Description

A small screen printing machine

technical field

The utility model relates to the field of screen printing, in particular to a small screen printing machine.

Background technique

The basic principle of screen printing is to use the basic principle that the graphic part of the screen printing plate is transparent to ink, and the non-graphic part of the mesh is impermeable to printing. When printing, pour ink into one end of the screen printing plate, apply a certain amount of pressure on the ink part of the screen printing plate with the scraper, and at the same time, print towards the other end of the screen printing plate. The ink is squeezed by the scraper from the mesh of the graphic part to the substrate during the movement. Due to the viscosity of the ink, the imprint is fixed within a certain range. During the printing process, the scraper is always in line contact with the screen printing plate and the substrate, and the contact line moves with the movement of the scraper. Due to the screen printing plate and the substrate Keep a certain gap between them, so that the screen printing plate during printing will generate a reaction force against the scraper through its own tension. This reaction force is called rebound force. Due to the effect of resilience, the screen printing plate and the substrate are only in moving line contact, while other parts of the screen printing plate are in a state of separation from the substrate. Make the ink and the screen break and move, ensuring the printing size accuracy and avoiding the dirty substrate. When the scraper scrapes across the entire page, it lifts up, and at the same time, the screen printing plate also lifts up, and scrapes the ink back to its original position. So far it is a printing stroke.

A screen printing machine is a machine that uses a screen printing plate to print, and is a type of printing machine. A screen printing machine is a machine for printing text and images, and is a general term for machines or equipment used to produce printed matter. Screen printing machine is a representative printing equipment among stencil printing machines. In addition to silk, the material for making screen can also be nylon wire, copper wire, steel wire or stainless steel wire. It can be divided into flat screen printing machine, curved screen printing machine, rotary screen printing machine and so on. Existing screen printing machines are all pursuing high speed and precision, and need to install various devices. The equipment is huge and expensive, and is only suitable for large-scale enterprises to use in mass production. However, at present, some small and medium-sized enterprises only carry out small-scale production. It is not suitable for large-scale screen printing machines, so small screen printing machines are very popular. However, the existing small screen printing machines have the characteristics of low efficiency and low precision, so there is an urgent need for a screen printing machine. A small screen printing machine with the characteristics of high efficiency and high precision.

Contents of the invention

In order to overcome the deficiencies and existing problems of the prior art, the utility model provides a small screen printing machine with simple structure, low manufacturing cost, high efficiency and high precision.

The utility model is achieved through the following technical solutions:

A small screen printing machine, comprising a frame, the frame is provided with a sliding guide rail, the sliding guide rail is provided with a platform device sliding along the sliding guide rail, the bottom of the platform device is connected with a driving device fixed on the frame, and the frame There is a printing device on the upper frame, and the printing device is located above the platform device; the driving device includes a servo motor, a timing belt and two timing pulleys, the timing belt is set between the two timing pulleys, the timing belt is arranged along the sliding guide rail, the platform device and Timing belt connection.

The platform device includes a bottom plate, a positioning mechanism and an adsorption platform arranged sequentially from bottom to top, the bottom plate is connected with the timing belt, and the positioning mechanism is located between the bottom plate and the adsorption platform.

The positioning mechanism includes a horizontal positioning mechanism and a vertical positioning mechanism. There are two horizontal positioning mechanisms, which are respectively located on the two longitudinal sides of the adsorption platform, and one vertical positioning mechanism, which is located at the horizontal center of the adsorption platform.

Both the horizontal positioning mechanism and the longitudinal positioning mechanism are provided with a trimmer, and the trimmer is provided with a fine-tuning knob.

The adsorption platform includes a platform plate, and an adsorption hole is arranged on the platform plate, and the adsorption hole communicates with the air compressor.

The printing device includes a transverse traveling mechanism, a span beam and a printing head. The transverse traveling mechanism is fixed on the frame, the span beam is fixed on the transverse traveling mechanism, and the printing head is fixed on the span beam.

The printing head includes a screen printing mechanism and a position detection mechanism.

The said transverse traveling mechanism is provided with two parallel to each other, and the two ends of the span beam are respectively fixed on the two transverse traveling mechanisms.

The transverse traveling mechanism includes a transverse slide rail, a slider and a travel driver, the slider slides along the transverse slide rail, the slider is fixed to the span beam, and the slider is driven by the travel driver.

The platform device set in the utility model is driven by a driving device, the driving device adopts a servo motor and a synchronous belt, the transmission is accurate and the structure is simple, and the movement accuracy of the platform device is effectively guaranteed, and the position of the platform device can be automatically adjusted to achieve high-precision printing; The overall structure of the machine is simple and takes up little space. The horizontal positioning mechanism and the vertical positioning mechanism are equipped with trimmers, which can fine-tune the position of the platform, effectively calibrate the deviation in the working process, and further improve the yield rate.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the structural representation of platform device in the utility model;

Fig. 3 is a schematic structural view of the printing device in the present invention.

In the figure: 1-frame, 2-sliding guide rail, 3-platform device, 31-bottom plate, 32-positioning mechanism, 321-horizontal positioning mechanism, 322-longitudinal positioning mechanism, 323-fine tuner, 33-adsorption platform, 331 -Adsorption hole, 4-driving device, 41-servo motor, 42-synchronous pulley, 43-synchronous belt, 5-printing device, 51-transverse travel mechanism, 511-transverse slide rail, 512-slider, 513-walking Driver, 52-span beam, 53-printing head, 531-position detection mechanism, 532-screen printing mechanism.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a small screen printing machine includes a frame 1, a sliding guide rail 2 is provided on the frame 1, a platform device 3 sliding along the sliding guide rail 2 is provided on the sliding guide rail 2, and the bottom of the platform device 3 is connected There is a driving device 4 fixed on the frame 1, and the platform device 3 is driven by the driving device 4. A printing device 5 is erected on the frame 1 , and the printing device 5 is used to print the substrate on the platform device 3 . The printing device 5 is located above the platform device 3 . The driving device 4 includes a servo motor 41, a synchronous belt 43 and two synchronous pulleys 42, the synchronous belt 43 is located between the two synchronous pulleys 42, the synchronous belt 43 is arranged along the sliding guide rail 2, and the platform device 3 is connected with the synchronous belt 43. The servo motor 41 drives the synchronous pulley 42 to rotate, thereby driving the synchronous belt 43 to move, thereby driving the platform device 3 to move.

As shown in Figure 2, the platform device 3 comprises a bottom plate 31, a positioning mechanism 32 and an adsorption platform 33 arranged successively from bottom to top, the adsorption platform 33 comprises a platform plate, and the platform plate is provided with an adsorption hole 331, and the adsorption hole 331 is connected with the air compressor. connected. The printed matter is placed on the platform board, and the printed matter is fixed by the function of the adsorption hole 331 . The bottom plate 31 is connected with the synchronous belt 43 , and the positioning mechanism 32 is located between the bottom plate 31 and the adsorption platform 33 . When the positioning mechanism 32 works, the position on the plane of the adsorption platform 33 can be adjusted. The positioning mechanism 32 includes a horizontal positioning mechanism 321 and a vertical positioning mechanism 322 , the horizontal positioning mechanism 321 adjusts the horizontal position of the adsorption platform 33 , and the vertical positioning mechanism 322 adjusts the longitudinal position of the adsorption platform 33 . There are two lateral positioning mechanisms 321 , which are respectively located on two longitudinal sides of the adsorption platform 33 , and the rotation angle of the adsorption platform 33 can be adjusted through the two lateral positioning mechanisms 321 . One longitudinal positioning mechanism 322 is provided, which is located at the lateral center of the adsorption platform 33 . Both the horizontal positioning mechanism 321 and the vertical positioning mechanism 322 are provided with a trimmer 323, and the trimmer 323 is provided with a fine-tuning knob, through which the position of the adsorption platform 33 can be adjusted.

As shown in Figure 3, the printing device 5 comprises a transverse traveling mechanism 51, a span beam 52 and a printing head 53, the transverse traveling mechanism 51 is fixed on the frame 1, the span beam 52 is fixed on the transverse traveling mechanism 51, and the printing head 53 is fixed on the on the cross beam 52. The transverse running mechanism 51 drives the span beam 52 to move transversely, thereby driving the printing head 53 to move transversely. There are two transverse traveling mechanisms 51 parallel to each other, and the two ends of the span beam 52 are respectively fixed on the two transverse traveling mechanisms 51 . The transverse running mechanism 51 includes a transverse slide rail 511 , a slide block 512 and a travel driver 513 , the slide block 512 slides along the transverse slide rail 511 , the slide block 512 is fixed to the span beam 52 , and the slide block 512 is driven by the travel driver 513 . The printing head 53 includes a screen printing mechanism 532 and a position detection mechanism 531 . The position detection mechanism 531 is used to detect the position of the substrate on the adsorption platform 33 , and feed back the position information to the platform device 3 , and the platform device 3 adjusts the position of the substrate.

The working process of this embodiment: first place the substrate on the platform device 3, fix the substrate through the adsorption hole 331, and fix the soft substrate, and then drive the platform device 3 to move to the printing device 5 through the driving device 4 Directly below, the position detection mechanism 531 detects the position of the substrate on the adsorption platform 33 , and feeds back the position information to the platform device 3 , the platform device 3 adjusts the position of the substrate, and the printing device 5 prints the substrate.

The above-mentioned embodiment is a preferred implementation mode of the utility model, and is not a limitation of the utility model. Any obvious replacement is within the protection scope of the utility model without departing from the inventive concept of the utility model.

Claims (9)

1. A small screen printing machine, comprising a frame (1), characterized in that: the frame is provided with a sliding guide rail (2), and the sliding guide rail is provided with a platform device (3) sliding along the sliding guide rail, The bottom of the platform device is connected with a driving device (4) fixed on the frame, and a printing device (5) is mounted on the frame, and the printing device is located above the platform device; the driving device includes a servo motor (41), a timing belt (43) and Two synchronous belt pulleys (42), the synchronous belt is arranged between the two synchronous belt pulleys, the synchronous belt is arranged along the sliding guide rail, and the platform device is connected with the synchronous belt. 2. The small screen printing machine according to claim 1, characterized in that: the platform device (3) includes a bottom plate (31), a positioning mechanism (32) and an adsorption platform (33) arranged sequentially from bottom to top, The bottom plate is connected with the timing belt (43), and the positioning mechanism is located between the bottom plate and the adsorption platform. 3. The small screen printing machine according to claim 2, characterized in that: the positioning mechanism (32) includes a horizontal positioning mechanism (321) and a vertical positioning mechanism (322), and there are two horizontal positioning mechanisms, and They are respectively located on the two longitudinal sides of the adsorption platform (33), and one longitudinal positioning mechanism is provided, which is located at the center of the adsorption platform in the transverse direction. 4. The small screen printing machine according to claim 3, characterized in that: the horizontal positioning mechanism (321) and the longitudinal positioning mechanism (322) are equipped with a trimmer (323), and the trimmer is equipped with a fine-tuning knob. 5. The small screen printing machine according to claim 4, characterized in that: the adsorption platform (33) includes a platform plate, on which an adsorption hole (331) is provided, and the adsorption hole communicates with an air compressor. 6. The small screen printing machine according to any one of claims 1 to 5, characterized in that: the printing device (5) includes a transverse traveling mechanism (51), a cross beam (52) and a printing head (53 ), the transverse traveling mechanism is fixed on the frame (1), the span beam is fixed on the transverse traveling mechanism, and the printing head is fixed on the span beam. 7. The small screen printing machine according to claim 6, characterized in that: the printing head (53) comprises a screen printing mechanism (532) and a position detection mechanism (531). 8. The small screen printing machine according to claim 7, characterized in that: said transverse traveling mechanism (51) is provided with two parallel to each other, and the two ends of the span beam (52) are respectively fixed on two transverse traveling mechanisms. Institutional. 9. The small screen printing machine according to claim 8, characterized in that: the transverse traveling mechanism (51) includes a transverse slide rail (511), a slider (512) and a travel driver (513), and the slider moves along The horizontal slide rail slides, the slider is fixed to the span beam, and the slider is driven by the travel driver.