Positioning device of double-color metal decorating machine

Abstract

The utility model relates to the technical field of metal decorating machines, and discloses a positioning device of a double-color metal decorating machine, which comprises a conveying belt, a positioning component is arranged at the lower end of the conveying belt, the positioning component comprises a fixing rod arranged at the lower end of the conveying belt, and a fixing plate is arranged at the lower end of the fixing rod. Tinplates needing to be printed are sequentially placed at the upper end of the conveying belt, then according to the size of the tinplates, the electric telescopic rods are started to contract, the two sets of connecting rods get close to each other, the two sets of positioning rods get close to each other accordingly, and the tinplates placed at the upper end of the conveying belt are guided and positioned; the tinplates move towards the printing machine, the tinplates of different sizes can be calibrated and positioned through the positioning rods, and the problem that the tinplates deviate when being placed at the upper end of the conveying belt, consequently, the tinplates entering the printing machine deviate from the preset printing design position, and printing fails is solved.

Description

Technical Field

[0001] This utility model relates to the field of tinplate printing machine technology, and in particular to a positioning device for a two-color tinplate printing machine. Background Technology

[0002] Tinplate printing also utilizes the physical property of water and ink repulsion. With the help of printing pressure, the image on the printing plate is transferred to the tinplate through the rubber blanket. It belongs to the principle of offset lithography. Due to the special physical and chemical properties of tinplate and the reprocessing properties of printed materials, its printing process is quite different from ordinary offset printing. Usually, one of the most important cylinders in the main body of a tinplate printing machine is the impression cylinder. During printing, the impression cylinder is brought close to the impression cylinder, and the tinplate is squeezed as it passes through, thus achieving printing on the tinplate.

[0003] Since different tinplate sizes vary, without a device to position the tinplate, it is easy for it to shift after being placed on the conveyor belt, causing the printed part to deviate from the design position, resulting in printing failure and increasing the probability of producing defective products. Utility Model Content

[0004] Given that different tinplate sizes exist, without a device to position the tinplate, it is easy for it to shift after being placed on the conveyor belt, causing the printed portion to deviate from the designed position, resulting in printing failure and increasing the probability of producing defective products. This utility model was proposed to address this problem.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a positioning device for a two-color tinplate printing machine, comprising a conveyor belt, a positioning component at the lower end of the conveyor belt, a fixing rod at the lower end of the fixing rod, a fixing plate at the lower end of the fixing rod, two sets of symmetrical first sliding rods at the upper end of the fixing plate, two sets of symmetrical sliding sleeves fitted on the outer wall of the first sliding rods, a connecting rod at the upper end of the sliding sleeves on the same side, a positioning rod at the upper end of the connecting rod, an electric telescopic rod at the upper end of the fixing plate, a first adjusting rod at the middle of the upper end of the fixing plate, two sets of parallel second adjusting rods at both ends of the first adjusting rod, and a flattening component and a printing machine respectively at the upper end of the conveyor belt.

[0006] In a preferred embodiment of the positioning device for the two-color tinplate printing machine of this utility model, the sliding sleeve is movably sleeved on the outer wall of the first sliding rod.

[0007] In a preferred embodiment of the positioning device for the two-color tinplate printing machine of this utility model, the extension end of the electric telescopic rod is fixedly connected to one of the sets of connecting rods.

[0008] In a preferred embodiment of the positioning device for the two-color printing machine of this utility model, the lower middle part of the first adjusting rod is rotatably connected to the upper surface of the fixing plate, both ends of the first adjusting rod are respectively hinged to the second adjusting rod, and the end of the second adjusting rod away from the first adjusting rod is hinged to the connecting rod.

[0009] As a preferred embodiment of the positioning device of the two-color printing machine of this utility model, the flattening component includes a fixed frame disposed at the upper end of the conveyor belt, a screw is threadedly inserted into one side of the upper end of the fixed frame, a connecting frame is provided at the lower end of the screw, and the upper end of the connecting frame and the lower end of the screw are rotatably connected.

[0010] As a preferred embodiment of the positioning device for the two-color tinplate printing machine of this utility model, a second slide rod is fixedly provided at the upper end of the connecting frame and the end opposite to the screw, and the second slide rod is movably inserted into one side of the upper end of the fixed frame.

[0011] As a preferred embodiment of the positioning device for the two-color tinplate printing machine of this utility model, the lower end of the connecting frame is provided with a roller.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects:

[0013] 1. In this utility model, the tinplates to be printed are placed sequentially on the upper end of a conveyor belt. Then, according to the size of the tinplates, the electric telescopic rod is activated to retract, and the two sets of connecting rods move closer to each other, and the two sets of positioning rods move closer to each other, guiding and positioning the tinplates placed on the upper end of the conveyor belt. Under the guidance of the positioning rods, the tinplates move towards the printing machine. The positioning rods can be used to calibrate and position tinplates of different sizes, preventing the tinplates from shifting when placed on the upper end of the conveyor belt, which would cause the tinplates entering the printing machine to deviate from the predetermined printing design position and lead to printing failure.

[0014] 2. According to the size of the tinplate placed on the upper end of the conveyor belt, the screw is rotated downward. Under the guidance of the second slide rod, the connecting frame drives the roller to move downward. According to the height of the tinplate placed on the upper end of the conveyor belt, the distance between the lower end of the roller and the conveyor belt is determined. Thus, when the tinplate passes the lower end of the fixed frame, the roller can flatten the tinplate. The roller pressing on the upper end of the tinplate can also achieve the function of calibrating and positioning the tinplate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the positioning device for the two-color tinplate printing machine of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the positioning component of the positioning device for the two-color tinplate printing machine of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the flattening component of the positioning device of the two-color tinplate printing machine of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Conveyor belt; 2. Positioning assembly; 21. Fixing rod; 22. Fixing plate; 23. First slide rod; 24. Sliding sleeve; 25. Connecting rod; 26. Positioning rod; 27. Electric telescopic rod; 28. First adjusting rod; 29. ​​Second adjusting rod; 3. Flattening assembly; 31. Fixing frame; 32. Second slide rod; 33. Screw; 34. Connecting frame; 35. Roller; 4. Printing machine. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] Reference Figures 1-2 This is the first embodiment of the present invention, which provides a positioning device for a two-color printing press, including a conveyor belt 1, a positioning component 2 at the lower end of the conveyor belt 1, a fixing rod 21 at the lower end of the conveyor belt 1, a fixing plate 22 at the lower end of the fixing rod 21, two sets of symmetrical first sliding rods 23 at the upper end of the fixing plate 22, two sets of symmetrical sliding sleeves 24 on the outer wall of the first sliding rods 23, a connecting rod 25 at the upper end of the sliding sleeves 24 on the same side, a positioning rod 26 at the upper end of the connecting rod 25, an electric telescopic rod 27 at the upper end of the fixing plate 22, a first adjusting rod 28 at the middle of the upper end of the fixing plate 22, two sets of parallel second adjusting rods 29 at both ends of the first adjusting rod 28, and a flattening component 3 and a printing press 4 respectively at the upper end of the conveyor belt 1.

[0023] The sliding sleeve 24 is movably fitted on the outer wall of the first sliding rod 23. The extended end of the electric telescopic rod 27 is fixedly connected to one of the connecting rods 25. The lower middle part of the first adjusting rod 28 is rotatably connected to the upper end face of the fixed plate 22. The two ends of the first adjusting rod 28 are respectively hinged to the second adjusting rod 29. The end of the second adjusting rod 29 away from the first adjusting rod 28 is hinged to the connecting rod 25.

[0024] The tinplates to be printed are placed sequentially on the upper end of conveyor belt 1. Then, according to the size of the tinplates, the electric telescopic rod 27 is activated to retract. The electric telescopic rod 27 drives a set of connecting rods 25 connected to it to move. The connecting rods 25 drive the sliding sleeve 24 to slide along the outer wall of the first sliding rod 23. Since the connecting rods 25 and the second adjusting rod 29 are hinged, the connecting rods 25 drive the second adjusting rod 29 to rotate a certain angle. The second adjusting rod 29 drives the first adjusting rod 28 to rotate a certain angle. Thus, the two sets of second adjusting rods 29 rotate in the same direction, and the two sets of connecting rods 25 move closer to each other. The two sets of positioning rods 26 also move closer to each other, guiding and positioning the tinplates placed on the upper end of conveyor belt 1. Under the guidance of the positioning rods 26, the tinplates move towards the printing machine 4. The positioning rods 26 can be used to calibrate and position tinplates of different sizes, preventing the tinplates from shifting when placed on the upper end of conveyor belt 1, which would cause the tinplates entering the printing machine 4 to deviate from the predetermined printing design position and cause printing failure.

[0025] Example 2

[0026] Reference Figures 1-3 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the flattening component 3 includes a fixed frame 31 located at the upper end of the conveyor belt 1. A screw 33 is threadedly inserted into one side of the upper end of the fixed frame 31. A connecting frame 34 is provided at the lower end of the screw 33. The upper end of the connecting frame 34 and the lower end of the screw 33 are rotatably connected. A second slide rod 32 is fixedly provided at one end of the upper end of the connecting frame 34 that is symmetrical to the screw 33. The second slide rod 32 is movably inserted into one side of the upper end of the fixed frame 31. A roller 35 is rotatably provided at the lower end of the connecting frame 34.

[0027] Based on the size of the tinplate placed on the upper end of the conveyor belt 1, the screw 33 is rotated downwards. Under the guidance of the second slide bar 32, the connecting frame 34 drives the roller 35 to move downwards. Based on the height of the tinplate placed on the upper end of the conveyor belt 1, the distance between the lower end of the roller 35 and the conveyor belt 1 is determined. Thus, when the tinplate passes the lower end of the fixed frame 31, the roller 35 can flatten the tinplate. Furthermore, the roller 35 pressing on the upper end of the tinplate can also achieve the function of calibrating and positioning the tinplate.

[0028] The remaining structure is the same as that in Example 1.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning device for a two-color tinplate printing machine, comprising a conveyor belt (1), characterized in that: The lower end of the conveyor belt (1) is provided with a positioning component (2). The positioning component (2) includes a fixed rod (21) located at the lower end of the conveyor belt (1). The lower end of the fixed rod (21) is provided with a fixed plate (22). The upper end of the fixed plate (22) is provided with two sets of first sliding rods (23) that are symmetrical to each other. The outer wall of the first sliding rod (23) is fitted with two sets of sliding sleeves (24) that are symmetrical to each other. The upper end of the sliding sleeve (24) located on the same side is provided with a connecting rod (25). The upper end of the connecting rod (25) is provided with a positioning rod (26). The upper end of the fixed plate (22) is provided with an electric telescopic rod (27). The middle part of the upper end of the fixed plate (22) is provided with a first adjusting rod (28). The two ends of the first adjusting rod (28) are provided with two sets of second adjusting rods (29) that are parallel to each other. The upper end of the conveyor belt (1) is provided with a flattening component (3) and a printing machine (4).

2. The positioning device for a two-color tinplate printing machine according to claim 1, characterized in that: The sliding sleeve (24) is movably fitted onto the outer wall of the first sliding rod (23).

3. The positioning device for a two-color tinplate printing machine according to claim 1, characterized in that: The extension end of the electric telescopic rod (27) is fixedly connected to one of the sets of connecting rods (25).

4. The positioning device for a two-color tinplate printing machine according to claim 1, characterized in that: The lower middle part of the first adjusting rod (28) is rotatably connected to the upper end of the fixed plate (22). The two ends of the first adjusting rod (28) are respectively hinged to the second adjusting rod (29). The end of the second adjusting rod (29) away from the first adjusting rod (28) is hinged to the connecting rod (25).

5. The positioning device for a two-color tinplate printing machine according to claim 1, characterized in that: The flattening assembly (3) includes a fixed frame (31) located at the upper end of the conveyor belt (1). A screw (33) is threadedly inserted into one side of the upper end of the fixed frame (31). A connecting frame (34) is provided at the lower end of the screw (33). The upper end of the connecting frame (34) and the lower end of the screw (33) are rotatably connected.

6. The positioning device for a two-color tinplate printing machine according to claim 5, characterized in that: The upper end of the connecting frame (34) and the end opposite to the screw (33) are fixedly provided with a second slide rod (32), which is movably inserted into one side of the upper end of the fixed frame (31).

7. The positioning device for a two-color tinplate printing machine according to claim 5, characterized in that: The lower end of the connecting frame (34) is provided with a roller (35) for rotation.

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