Automatic screen printing mechanism for triple prism

Abstract

The utility model discloses an automatic screen printing mechanism for a prism, which comprises a machine base, a screen printing device and a conveying device, the screen printing device comprises a vertically arranged screen printing net and a brushing device arranged above the screen printing net, and when the prism moves to a position below the screen printing net through the conveying device, the brushing device is arranged above the screen printing net. The silk screen moves downwards and is attached to the upper wall face of the triangular prism. A conveying device which moves circularly is arranged to drive a jig to move circularly, when the jig is located at a printing position, the jig is in a horizontal state at the moment, firstly, a silk screen moves vertically and is attached to the upper wall face of a prism, and then a painting device moves downwards and is attached to the upper wall of the silk screen; the paint is printed on the upper wall surface of the triangular prism in a silk-screen manner through the longitudinal reciprocating motion of the longitudinal moving frame, so that a coating is formed on the upper wall surface of the triangular prism; the structure is simple and stable, one-by-one screen printing of the prisms can be achieved, and the optical stability is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of prism processing equipment, in particular to an automatic silk-screen printing mechanism for a prism. Background Art

[0002] Due to its irregular shape (and small size), the existing triangular prism involves flipping, transportation and processing in actual processing. However, in the actual flipping process of the existing triangular prism, it is difficult to achieve high efficiency in the automated transportation process due to the influence of the fixture and its shape.

[0003] Currently, a jig is generally used to place multiple prisms, which are then placed under a screen printer to screen print a coating of a predetermined color. However, due to its small size, the processing is more troublesome, and simultaneous processing of multiple prisms often results in local screen printing defects, which affects the screen printing efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic silk-screen printing mechanism for a prism, aiming to realize silk-screen printing of prisms one by one, and the silk-screen printing efficiency is high and the processing qualified rate is high.

[0005] To achieve the above purpose, the utility model proposes a prism automatic screen printing mechanism, comprising:

[0006] Machine base;

[0007] A printing device, the printing device comprising a vertically arranged silk screen and a brushing device arranged above the silk screen,

[0008] The transport device moves the prism to a position below the screen printing screen through the transport device, and the screen printing screen moves downward and fits with the upper wall surface of the prism. At the same time, the coating device moves back and forth and evenly coats the paint on the upper wall surface of the prism to form a screen printing layer on the upper wall surface of the prism.

[0009] In the actual design, a circularly moving transport device is provided to drive the circular movement of the jig. When the jig is located at the printing position, it is in a horizontal state. First, the screen printing mesh moves vertically and fits the upper wall of the prism. Then the coating device moves downward and fits the upper wall of the screen printing mesh. The longitudinal reciprocating movement of the longitudinal moving frame is used to screen-print the paint on the upper wall of the prism, thereby forming a coating on the upper wall of the prism. The structure is simple and stable, and the screen printing of prisms one by one can be realized, which effectively ensures the optical stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A three-dimensional diagram of the structure of the practical turntable Figure 1 ;

[0011] Figure 2A three-dimensional diagram of the structure of the practical turntable Figure 2 ;

[0012] Figure 3 It is a three-dimensional schematic diagram of this practical conveyor belt.

[0013] In the figure, 1 is a machine base, 2 is a screen printing screen, 21 is a guide column, 22 is a guide seat, 23 is a vertical telescopic motor, 3 is a brushing device, 30 is a gantry, 31 is a longitudinal moving frame, 32 is a vertical moving frame, 4 is a jig, 41 is a conveyor belt, 42 is a turntable, 5 is a brush seat, and 100 is a prism. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0016] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0017] like Figures 1 to 3 As shown, a prism automatic screen printing mechanism comprises:

[0018] Base 1;

[0019] A printing device, the printing device comprising a vertically arranged screen printing screen 2 and a brushing device 3 arranged above the screen printing screen 2,

[0020] Transport device, when the prism is moved to the position below the silk screen 2 by the transport device, the silk screen 2 moves down and fits with the upper wall surface of the prism. At the same time, the coating device 3 moves back and forth and evenly coats the paint on the upper wall surface of the prism and forms a silk screen layer on the upper wall surface of the prism.

[0021] In the actual design, a circularly moving transport device is provided to drive the jig 4 to move in a circular motion. When the jig 4 is located at the printing position, it is in a horizontal state. First, the screen printing screen 2 moves vertically and fits against the upper wall of the prism. Then, the coating device 3 moves downward and fits against the upper wall of the screen printing screen 2. The longitudinal reciprocating movement of the longitudinal moving frame 31 is used to screen-print the paint on the upper wall of the prism, thereby forming a coating on the upper wall of the prism. The structure is simple and stable, and the screen printing of prisms one by one can be realized, thereby effectively ensuring the optical stability.

[0022] Specifically, the transport device is a closed-loop transport belt 41, and the outer peripheral wall of the transport belt 41 is provided with a jig 4 arranged at intervals, and the jig 4 is concavely provided with a positioning groove. Then the corresponding printing device can be arranged in multiple intervals, thereby realizing the simultaneous screen printing of multiple prisms, thereby improving the printing efficiency, such as Figure 3 As shown, the size of the conveyor belt 41 is enlarged, so that a plurality of printing positions can be arranged between the corresponding loading position and unloading position.

[0023] Furthermore, the transport device is a turntable 42 pivotally mounted on the base 1 , the turntable 42 is provided with spaced fixtures 4 , the fixtures 4 are recessed with positioning grooves, and the base 1 is provided with a rotating motor for driving the turntable 42 to rotate.

[0024] The positioning groove should allow the upper wall of the prism to extend out of the positioning groove or be flush with the upper wall of the fixture 4.

[0025] Of course, the specific screen printing transport device can be customized according to the area of ​​the site and actual needs, wherein the transport belt 41 has a certain degree of deformation, thereby driving the fixture 4 to circulate.

[0026] In the embodiment of the utility model, the base 1 is provided with two groups of guide columns 21 arranged at intervals, the guide columns 21 are provided with guide seats 22 for sliding installation, the screen printing screen 2 is arranged on the guide seats 22, and the upper end of the guide columns 21 is provided with a vertical telescopic motor 23, the vertical telescopic motor 23 is used to drive the guide seats 22 to move vertically, and drive the screen printing screen 2 to fit or move away from the upper wall of the prism. Thus, the automatic movement of the screen printing screen 2 is realized, and the automatic printing of the prism is realized through the brushing device 3.

[0027] Furthermore, the coating device 3 includes a gantry arranged on the machine base 1, a longitudinal movable frame 31 arranged on the gantry, a vertical movable frame 32 arranged on the longitudinal movable frame 31, and a brush holder 5 arranged on the vertical movable frame 32. The vertical movable frame 32 can drive the brush holder 5 to approach the silk screen 2, and the longitudinal movable frame 31 can drive the brush holder 5 to move back and forth along the longitudinal direction of the silk screen 2, thereby realizing the coating of paint on the upper wall surface of the prism.

[0028] In the embodiment of the utility model, the longitudinal moving frame 31 includes a longitudinal guide rail arranged on the gantry, a longitudinal slider slidably installed on the longitudinal guide rail, and a longitudinal screw pair for driving the longitudinal slider to move, thereby realizing the reciprocating movement of the brush holder 5.

[0029] Specifically, there are two vertical moving frames 32, and two corresponding brush holders 5 are arranged at intervals. In the screen printing device, two structures of ink collection and film brushing are generally provided, so that the paint is reciprocated between the two brush holders 5, thereby reducing the waste of paint and ensuring uniform coating of the paint.

[0030] In the embodiment of the utility model, the vertical moving frame 32 is a lifting and telescopic motor, thereby achieving the brush holder 5 and the screen printing screen 2 to be close to or away from each other.

[0031] The lifting and telescopic motor is provided with a rotating device 6, which is connected to the brush seat and is used to adjust the tilt direction of the brush seat, thereby realizing the two processes of brushing and scraping, and thus the paint is evenly coated.

[0032] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A prism automatic screen printing mechanism, characterized in that: include: Machine base; A printing device, the printing device comprising a vertically arranged silk screen and a brushing device arranged above the silk screen, The transport device moves the prism to a position below the screen printing screen through the transport device, and the screen printing screen moves downward and fits with the upper wall surface of the prism. At the same time, the coating device moves back and forth and evenly coats the paint on the upper wall surface of the prism to form a screen printing layer on the upper wall surface of the prism.

2. The prism automatic screen printing mechanism according to claim 1, characterized in that: The transport device is a conveyor belt arranged in a closed loop, the outer peripheral wall of the conveyor belt is provided with jigs arranged at intervals, and the jigs are concavely provided with positioning grooves.

3. The prism automatic screen printing mechanism according to claim 1, characterized in that: The transport device is a turntable pivotally mounted on a machine base, the turntable is provided with jigs arranged at intervals, the jigs are concavely provided with positioning grooves, and the machine base is provided with a rotating motor for driving the turntable to rotate.

4. The prism automatic screen printing mechanism according to claim 1, characterized in that: The machine base is provided with two groups of guide columns arranged at intervals, and the guide columns are provided with slidably mounted guide seats. The silk screen is arranged on the guide seats. The upper ends of the guide columns are provided with vertical telescopic motors, and the vertical telescopic motors are used to drive the guide seats to move vertically and drive the silk screen to fit into or move away from the upper wall of the prism.

5. The prism automatic screen printing mechanism according to claim 1, characterized in that: The brushing device includes a gantry arranged on the machine base, a longitudinal movable frame arranged on the gantry, a vertical movable frame arranged on the longitudinal movable frame and a brush holder arranged on the vertical movable frame. The vertical movable frame can drive the brush holder to approach the silk screen, and the longitudinal movable frame can drive the brush holder to move back and forth along the longitudinal direction of the silk screen.

6. The prism automatic screen printing mechanism according to claim 5, characterized in that: The longitudinal moving frame comprises a longitudinal guide rail arranged on the gantry, a longitudinal sliding block slidably mounted on the longitudinal guide rail, and a longitudinal screw rod pair for driving the longitudinal sliding block to move.

7. The prism automatic screen printing mechanism according to claim 6, characterized in that: The vertical movable frames are provided with two, and the corresponding brush seats are provided with two and are arranged at intervals.

8. The prism automatic screen printing mechanism according to claim 7, characterized in that: The vertical moving frame is a lifting and telescopic motor.

9. The prism automatic screen printing mechanism according to claim 1, characterized in that: The printing device is provided with at least one group.

10. The prism automatic screen printing mechanism according to claim 8, characterized in that: The lifting and telescopic motor is provided with a rotating device, and the rotating device is connected to the brush seat and is used to adjust the tilting direction of the brush seat.

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