Material conveying mechanism of screen printing machine

Abstract

The utility model relates to the technical field of silk-screen printing machine conveying, and discloses a silk-screen printing machine conveying mechanism which comprises a silk-screen printing machine body, an operation table is arranged in the middle of the silk-screen printing machine body, a printing device is arranged at the upper end of the silk-screen printing machine body, and a fixing plate is fixedly connected to the front surface of the silk-screen printing machine body; two movable frames are symmetrically arranged on the two sides of the fixed plate; the two movable frames are arranged to be matched with self-locking universal wheels at the bottoms of the movable frames so that horizontal movement can be conveniently conducted on the two sides of the fixed plate, the movable frames can be adjusted according to the material width when moving, and when the movable frames meet materials with the large width, the two movable frames can move towards the two sides under the action of a forward and reverse rotation motor, a driving gear and a linkage rack plate; therefore, the width of the conveying channel is enlarged, equipment does not need to be replaced or materials do not need to be additionally machined, the adaptability of the equipment to the materials with different widths is improved, and the production cost and the complexity of production procedures are reduced.

Description

Technical Field

[0001] The present application relates to the field of screen printing machine feeding technology, and in particular to a screen printing machine feeding mechanism. Background Art

[0002] Screen printing is a type of stencil printing, which is considered one of the four major printing methods along with lithography, letterpress, and gravure. Stencil printing includes copy plates, perforated plates, spray-on printing, and screen printing. The principle of stencil printing is that when printing, a certain pressure is applied to the printing plate (a paper film plate or other plate base with holes through which ink can pass) to transfer ink through the holes of the stencil to the substrate (paper, ceramics, etc.), forming an image or text. Screen printing machines are widely used in modern industrial production, and their feed mechanism is a key component to ensure that screen printing operations can be carried out continuously and efficiently.

[0003] In the actual production process, there are many types of materials to be screen-printed, and their width sizes vary greatly. The feeding mechanism of the current common screen printing machine is usually designed based on fixed specifications, that is, the width of its conveying channel is relatively fixed. When encountering materials with a larger width, the existing feeding mechanism cannot adapt to such materials that exceed its conventional conveying width, which will make it difficult for the material to be smoothly conveyed through the conveying channel, and its use has limitations. For this reason, we urgently need to provide a feeding mechanism for a screen printing machine.

[0004] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problem that when encountering materials with larger width, the existing feeding mechanism cannot adapt to such materials that exceed its regular feeding width, which makes it difficult for the materials to be transported smoothly through the conveying channel and has limitations in use, the present application provides a feeding mechanism for a screen printing machine.

[0006] The feeding mechanism of a screen printing machine provided in this application adopts the following technical solution:

[0007] The transmission mechanism of the present invention is a material feeding mechanism of a screen printing machine, comprising a screen printing machine body, an operating table is provided in the middle of the screen printing machine body, a printing device is provided at the upper end of the screen printing machine body, a fixed plate is fixedly connected to the front surface of the screen printing machine body, two movable frames are symmetrically provided on both sides of the fixed plate, the bottom of the two movable frames are fixedly connected to two self-locking universal wheels, the inner sides of the two movable frames are provided with multiple transport rollers, the bottoms of the two movable frames are fixedly connected to a linkage rack plate by bolts, the middle side of the bottom of the fixed plate is fixedly connected to a motor frame, a forward and reverse motor is installed at the bottom of the motor frame, the output end of the forward and reverse motor passes through the motor frame and is connected to a driving gear, the upper end of the driving gear is rotatably connected to the bottom surface of the fixed plate, two linkage rack plates are oppositely arranged on both sides of the driving gear, and one end of the inner sides of the two linkage rack plates are respectively meshed with both sides of the driving gear.

[0008] Preferably, a plurality of sliding blocks are evenly fixedly connected to one side of the upper ends of the two movable frames close to the fixed plate, and a plurality of limiting slide rails are evenly provided at both ends of the interior of the fixed plate.

[0009] Preferably, the plurality of sliding blocks are respectively slidably connected to the interior of the limiting slide rail, and the inner ends of the plurality of sliding blocks are configured as T-shaped structures.

[0010] Preferably, the plurality of transport rollers are rotatably connected to the inner surfaces of the two movable frames respectively, a servo motor is installed on the outer side of the movable frame, and an output end of the servo motor passes through the movable frame and is connected to one of the transport rollers.

[0011] Preferably, a sprocket is fixedly provided on one side of the plurality of transport rollers close to the movable frame, a transmission chain is provided on the inner side of the movable frame, and upper and lower ends of the plurality of sprockets are respectively engaged with the inner side of the transmission chain.

[0012] In summary, this application has the following beneficial technical effects:

[0013] The utility model provides two movable frames with self-locking universal wheels at the bottom thereof to facilitate horizontal movement on both sides of the fixed plate. The movable frames can be adjusted according to the width of the materials when moving. When encountering materials with a larger width, the two movable frames can move to both sides under the action of the forward and reverse motors, the driving gears, and the linked rack plate, thereby expanding the width of the conveying channel without replacing the equipment or performing additional processing on the materials, thereby improving the adaptability of the equipment to materials of different widths and reducing the production cost and the complexity of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall front view structure of the embodiment of the application;

[0015] Figure 2This is a schematic diagram of the upper structure of the movable frame of the embodiment of the application;

[0016] Figure 3 This is a schematic diagram of the bottom structure of the fixed plate of the embodiment of the application;

[0017] Figure 4 It is a schematic diagram of the inner structure of the bottom of the fixed plate and the movable frame of the embodiment of the application.

[0018] Explanation of the accompanying symbols: 1. Screen printing machine body; 2. Operating table; 3. Printing device; 4. Fixed plate; 5. Movable frame; 6. Transport roller; 7. Sprocket; 8. Transmission chain; 9. Servo motor; 10. Self-locking universal wheel; 11. Linked rack plate; 12. Motor frame; 13. Forward and reverse motor; 14. Driving gear; 15. Limiting slide rail; 16. Sliding block. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application embodiment discloses a feeding mechanism of a screen printing machine, referring to Figure 1-Figure 3, including a screen printing machine body 1, an operating table 2 is provided in the middle of the screen printing machine body 1, a printing device 3 is provided at the upper end of the screen printing machine body 1, a fixed plate 4 is fixedly connected to the front surface of the screen printing machine body 1, two movable frames 5 are symmetrically provided on both sides of the fixed plate 4, and the bottoms of the two movable frames 5 are fixedly connected to two self-locking universal wheels 10. By setting two movable frames 5 and cooperating with the self-locking universal wheels 10 at the bottom thereof, it is convenient to move horizontally on both sides of the fixed plate 4. When the movable frames 5 move, they can be adjusted according to the width of the material. A plurality of transport rollers 6 are provided on the inner sides of the two movable frames 5. The bottoms of the two movable frames 5 are fixedly connected to a linkage rack plate 11 by bolts. A motor frame 12 is fixedly connected to the middle side of the bottom of the fixed plate 4. A forward and reverse motor 13 is installed at the bottom of the motor frame 12. The output end of the forward and reverse motor 13 passes through the motor frame 12 and is connected to a driving gear 14. The rotational movement of the forward and reverse motor 13 The rotation of the gears 14 is directly transmitted to the driving gear 14, so that the driving gear 14 rotates accordingly. The driving gear 14 then meshes with the linkage rack plates 11 on both sides to convert the rotational motion into the linear motion of the linkage rack plates 11. The upper end of the driving gear 14 is rotatably connected to the bottom surface of the fixed plate 4. The two linkage rack plates 11 are oppositely arranged on both sides of the driving gear 14. The clockwise or counterclockwise rotation of the driving gear 14 will drive the two linkage rack plates 11 to do linear motion in opposite directions, and the inner ends of the two linkage rack plates 11 are respectively meshed with the two sides of the driving gear 14. The two movable frames 5 can move to both sides under the action of the forward and reverse motors 13, the driving gear 14 and the linkage rack plates 11, thereby expanding the width of the conveying channel without replacing equipment or performing additional processing on the materials, thereby improving the adaptability of the equipment to materials of different widths and reducing production costs and the complexity of the production process.

[0021] Reference Figures 1-4, a plurality of sliding blocks 16 are evenly fixedly connected to one side of the upper end of the two movable frames 5 near the fixed plate 4, and a plurality of limiting slide rails 15 are evenly opened at both ends of the interior of the fixed plate 4. The plurality of sliding blocks 16 are respectively slidably connected to the interior of the limiting slide rails 15, and the movable frame 5 can move along the limiting slide rails 15. The sliding blocks 16 play a guiding and supporting role in the limiting slide rails 15 to ensure the stability and accuracy of the movement of the movable frame 5. The inner end of the plurality of sliding blocks 16 is set to a T-shaped structure, which can play a limiting and guiding role in the limiting slide rail 15 to prevent the sliding blocks 16 from escaping from the limiting slide rail 15. The plurality of transport rollers 6 are respectively rotatably connected to the inner surfaces of the two movable frames 5, and a servo motor is installed on the outside of the movable frame 5 9. The output end of the servo motor 9 passes through the movable frame 5 and is connected to one of the transport rollers 6. When the motor is started, it directly drives the transport roller 6 to rotate. A sprocket 7 is fixed on the side of the multiple transport rollers 6 close to the movable frame 5. A transmission chain 8 is provided on the inner side of the movable frame 5. The upper and lower ends of the multiple sprockets 7 are respectively engaged and connected to the inner side of the transmission chain 8. When the transport roller 6 driven by the motor rotates, its sprocket 7 drives the transmission chain 8 to rotate. The transmission chain 8 engages with other sprockets 7 to enable all the transport rollers 6 to rotate synchronously, avoiding the material deviation, shaking or even jamming caused by inconsistent rotation speed of the transport roller 6, which is beneficial to improving the continuity and stability of material transportation, thereby ensuring the smooth progress of the silk screen printing process.

[0022] The implementation principle of the feeding mechanism of a screen printing machine in the embodiment of the present application is as follows: during specific use, first determine whether the position of the movable frame 5 needs to be adjusted according to the width of the material. If the material is wider, start the forward and reverse motor 13 on the motor frame 12 at the bottom of the fixed plate 4, and the motor output end drives the active gear 14 to rotate. The active gear 14 engages with the linkage rack plates 11 on both sides, so that the linkage rack plates 11 drive the self-locking universal wheels 10 at the bottom of the movable frame 5 to move, thereby allowing the two movable frames 5 to expand to both sides. Then, the material is placed on the transport roller 6 inside the movable frame 5, and the servo motor 9 outside the movable frame 5 is started to drive one of the transport rollers 6. The transport roller 6 drives the other transport rollers 6 to rotate synchronously through the sprocket 7 and the transmission chain 8 to realize material transportation. During the movement of the movable frame 5, the sliding block 16 at its upper end slides in the limiting slide rail 15 of the fixed plate 4 to ensure the stability and accuracy of the movement of the movable frame 5, thereby realizing effective transportation and adaptation to materials of different widths.

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0024] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0025] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0026] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A feeding mechanism of a screen printing machine, comprising a screen printing machine body (1), characterized in that: An operating table (2) is provided in the middle of the screen printing machine body (1), a printing device (3) is provided at the upper end of the screen printing machine body (1), a fixed plate (4) is fixedly connected to the front surface of the screen printing machine body (1), two movable frames (5) are symmetrically provided on both sides of the fixed plate (4), the bottoms of the two movable frames (5) are fixedly connected to two self-locking universal wheels (10), the inner sides of the two movable frames (5) are provided with a plurality of transport rollers (6), and the bottoms of the two movable frames (5) are fixedly connected to a linkage rack plate (11) by bolts. A motor frame (12) is fixedly connected to the middle side of the bottom of the fixed plate (4), a forward and reverse motor (13) is installed at the bottom of the motor frame (12), an output end of the forward and reverse motor (13) passes through the motor frame (12) and is connected to a driving gear (14), an upper end of the driving gear (14) is rotatably connected to the bottom surface of the fixed plate (4), two linked rack plates (11) are arranged on both sides of the driving gear (14), and the inner ends of the two linked rack plates (11) are respectively meshed with the two sides of the driving gear (14).

2. The feeding mechanism of a screen printing machine according to claim 1, characterized in that: A plurality of sliding blocks (16) are evenly fixedly connected to one side of the upper ends of the two movable frames (5) close to the fixed plate (4), and a plurality of limiting slide rails (15) are evenly provided at both ends inside the fixed plate (4).

3. The feeding mechanism of a screen printing machine according to claim 2, characterized in that: The plurality of sliding blocks (16) are respectively slidably connected to the interior of the limiting slide rail (15), and the inner ends of the plurality of sliding blocks (16) are configured as T-shaped structures.

4. The feeding mechanism of a screen printing machine according to claim 1, characterized in that: The plurality of transport rollers (6) are rotatably connected to the inner surfaces of the two movable frames (5), and a servo motor (9) is installed on the outer side of the movable frame (5). The output end of the servo motor (9) passes through the movable frame (5) and is connected to one of the transport rollers (6).

5. The feeding mechanism of a screen printing machine according to claim 1, characterized in that: A sprocket (7) is fixedly provided on one side of the plurality of transport rollers (6) close to the movable frame (5), a transmission chain (8) is provided on the inner side of the movable frame (5), and the upper and lower ends of the plurality of sprockets (7) are respectively engaged with the inner side of the transmission chain (8).

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