Adjustable precision paper positioning and conveying device

Abstract

The utility model discloses paper positioning conveying device of adjustable accuracy relates to printing technical field, and this paper positioning conveying device of adjustable accuracy includes base, and the top of base is provided with two mounting brackets, and the opposite side of two mounting brackets is all provided with the installation slot, and the top of base and located the one side of mounting bracket is provided with conveying mechanism, and the top of base and located the one side of conveying mechanism is provided with printing machine, and the inside of two installation slots is provided with the compacting mechanism. In the utility model, the spacing of two limit plates can be flexibly adjusted through the cooperation of the forward and reverse screw rods and the first motor, different width paper can be adapted and accurately positioned, the friction damage during paper conveying is reduced through the design of the limiting wheel, the conveying mechanism and the compacting mechanism work cooperatively, the first spring provides the continuous pressing force for the lifting frame, the first conveying roller and the second conveying roller are closely combined, different thickness paper can be stably conveyed, and the flattening and anti-wrinkle effect can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to an adjustable precision paper positioning and conveying device. Background Technology

[0002] Paper overprinting is an important technology in the printing industry. It requires high-precision position control of the paper during the transport process to ensure accurate alignment of patterns during multi-color printing. Efficient and precise overprinting not only improves the quality of printed materials but also significantly increases production efficiency, reduces scrap rates, saves costs for printing companies, and brings higher economic benefits. Therefore, designing a reasonable paper overprinting positioning and conveying device is crucial for improving printing quality.

[0003] Existing paper positioning and conveying devices have poor adjustment flexibility in their positioning mechanisms, making it difficult to adapt to paper of different widths. They also lack effective friction-reducing structures, which can easily lead to wear or misalignment of the paper during conveying. Their positioning accuracy is insufficient, and their dust removal function is inadequate, failing to clean impurities on the paper surface simultaneously during conveying, thus affecting the quality of subsequent printing.

[0004] Based on this, an adjustable precision paper positioning and conveying device is now available, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable precision paper positioning and conveying device to solve the problem in the prior art of being difficult to adapt to papers of different widths and thicknesses.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable precision paper positioning and conveying device includes a base, two mounting brackets symmetrically arranged on the top of the base, mounting slots being provided on opposite sides of the two mounting brackets, a conveying mechanism being provided on the top of the base and on one side of the mounting brackets, and a printing press being provided on the top of the base and on one side of the conveying mechanism.

[0008] The two mounting slots are equipped with a clamping mechanism inside, and a limiting mechanism is provided between the two mounting brackets. Two limiting plates are provided outside the limiting mechanism. The limiting plates are equipped with limiting wheels through bearings inside, and a dust removal mechanism is provided outside the two limiting plates.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the limiting mechanism includes a positive and negative screw, which is rotatably mounted between two mounting brackets via bearings. A first motor is fixedly mounted on one side of one of the mounting brackets, and the positive and negative screw is driven by the first motor. A second limiting rod is provided between the two mounting brackets and above the positive and negative screw.

[0011] In one alternative: the limiting plate is threadedly connected to the positive and negative screws, and the limiting plate is slidably installed with respect to the second limiting rod.

[0012] In one alternative embodiment: the conveying mechanism includes two fixed plates, both of which are disposed on the top of the base. A second motor is fixedly installed on one side of one of the fixed plates. A second conveying roller is rotatably mounted between the two fixed plates via a bearing, and the second conveying roller is driven by the second motor.

[0013] In one alternative embodiment: the clamping mechanism includes two lifting frames, which are slidably mounted to two mounting frames respectively via mounting slots. A first conveying roller is rotatably mounted between the two lifting frames and directly above the second conveying roller via a bearing. A first limiting rod is fixedly mounted inside each of the two mounting slots. The lifting frame and the first limiting rod are slidably mounted. A first spring is sleeved on the outside of the first limiting rod and above the lifting frame.

[0014] In one alternative embodiment: the dust removal mechanism includes two first mounting blocks, which are respectively disposed on one side of two limiting plates. Each of the two first mounting blocks has a first roller rotatably mounted on its opposite side via a bearing. One end of one of the first rollers is provided with a telescopic sleeve, and one end of the other first roller is provided with a telescopic rod. The telescopic rod and the telescopic sleeve are slidably mounted. A third motor is fixedly mounted on one side of one of the first mounting blocks, and one of the first rollers is driven by the third motor.

[0015] In one alternative: a second mounting block is provided on the other side of each of the two limiting plates; a sliding rod is provided on the top of each of the two first mounting blocks and the two second mounting blocks; a movable frame is slidably mounted on the outside of each pair of sliding rods; a second spring is sleeved on the outside of each of the four sliding rods; and a second roller is rotatably mounted on the opposite side of the two movable frames and directly above the first roller.

[0016] In one alternative: brushes are provided on opposite sides of the two second mounting blocks and the two movable frames, and a connector is provided between the tops of the two movable frames.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the limiting mechanism works with the first motor through positive and negative screws to flexibly adjust the distance between the two limiting plates, adapt to different widths of paper and accurately position them. The limiting wheel design reduces friction damage during paper conveying. The conveying mechanism and the pressing mechanism work together, and the first spring provides continuous downward pressure to the lifting frame, so that the first conveying roller and the second conveying roller fit tightly together. This can not only stably convey paper of different thicknesses, but also flatten and prevent wrinkles.

[0019] 2. In the dust removal mechanism of this utility model, the first roller and the second roller work together to transport paper, and the brushes on both sides can clean the impurities on the paper surface at the same time. The design of the telescopic sleeve and the telescopic rod ensures that the transmission can still be normal when the distance between the limit plates is adjusted. The overall structure takes into account the positioning accuracy, conveying stability and cleaning function, effectively improving the processing quality and efficiency of paper before printing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the limiting mechanism of this utility model.

[0022] Figure 3 This is a schematic diagram of the conveying mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the dust removal mechanism of this utility model.

[0024] Figure 5 This is a schematic diagram of the brush installation structure of this utility model.

[0025] Figure reference numerals: 1. Base; 2. Mounting frame; 3. Mounting groove; 4. Pressing mechanism; 41. Lifting frame; 42. First conveying roller; 43. First limiting rod; 44. First spring; 5. Limiting mechanism; 51. Positive and negative screws; 52. First motor; 53. Second limiting rod; 6. Limiting plate; 7. Conveying mechanism; 71. Fixed plate; 72. Second motor; 73. Second conveying roller; 8. Dust removal mechanism; 81. First mounting block; 82. First roller; 83. Third motor; 84. Telescopic sleeve; 85. Telescopic rod; 86. Second mounting block; 87. Slide rod; 88. Moving frame; 89. Second roller; 810. Second spring; 811. Brush; 812. Connector; 9. Limiting wheel; 10. Printing machine. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figures 1-5As shown, an adjustable precision paper positioning and conveying device includes a base 1, two mounting brackets 2 are symmetrically arranged on the top of the base 1, and mounting slots 3 are opened on the opposite side of the two mounting brackets 2. A conveying mechanism 7 is arranged on the top of the base 1 and on one side of the mounting brackets 2, and a printing press 10 is arranged on the top of the base 1 and on one side of the conveying mechanism 7.

[0028] The two mounting slots 3 are equipped with a clamping mechanism 4 inside, and a limiting mechanism 5 is provided between the two mounting brackets 2. Two limiting plates 6 are provided outside the limiting mechanism 5. The limiting wheels 9 are rotatably installed inside the two limiting plates 6 through bearings. A dust removal mechanism 8 is provided outside the two limiting plates 6.

[0029] In this embodiment, the paper to be printed is placed at the dust removal mechanism 8, which positions and transports the paper while cleaning its surface. The cleaned paper is then transported to the conveying mechanism 7 and the pressing mechanism 4, where the paper is flattened by the cooperation of the conveying mechanism 7 and the pressing mechanism 4 to prevent wrinkles. Finally, the paper is transported into the printing press 10 for printing.

[0030] In one embodiment, such as Figure 1 and Figure 2 As shown, the limiting mechanism 5 includes a positive and negative screw 51, which is rotatably mounted between two mounting brackets 2 via bearings. A first motor 52 is fixedly mounted on one side of one of the mounting brackets 2, and the positive and negative screw 51 is driven by the first motor 52. A second limiting rod 53 is provided between the two mounting brackets 2 and above the positive and negative screw 51. The limiting plate 6 is threadedly connected to the positive and negative screw 51, and the limiting plate 6 is slidably mounted to the second limiting rod 53. The first motor 52 drives the positive and negative screw 51 to rotate, and the rotation of the positive and negative screw 51 changes the distance between the two limiting plates 6, which is convenient for adjustment according to the width of the paper and for positioning the paper. The limiting wheel 9 reduces the friction between the paper and the limiting plate 6, preventing the paper from being damaged due to friction.

[0031] In one embodiment, such as Figure 1 and Figure 3As shown, the conveying mechanism 7 includes two fixed plates 71, both of which are mounted on the top of the base 1. A second motor 72 is fixedly mounted on one side of one of the fixed plates 71. A second conveying roller 73 is rotatably mounted between the two fixed plates 71 via a bearing, and the second conveying roller 73 is driven by the second motor 72. The pressing mechanism 4 includes two lifting frames 41, which are slidably mounted to two mounting frames 2 via mounting grooves 3. A first conveying roller 42 is rotatably mounted between the two lifting frames 41 and directly above the second conveying roller 73 via a bearing. The inside of each slot 3 is fixedly installed with a first limiting rod 43. The lifting frame 41 and the first limiting rod 43 are slidably installed. A first spring 44 is sleeved on the outside of the first limiting rod 43 and above the lifting frame 41. The first spring 44 is always in a compressed state to provide downward pressure to the lifting frame 41, so that the first conveying roller 42 and the second conveying roller 73 are always in contact. The paper passes between the first conveying roller 42 and the second conveying roller 73. The second motor 72 drives the second conveying roller 73 to rotate, thereby conveying the paper. This structure is convenient for conveying paper of different thicknesses and improves practicality.

[0032] In one embodiment, such as Figure 4 and Figure 5As shown, the dust removal mechanism 8 includes two first mounting blocks 81, which are respectively disposed on one side of two limiting plates 6. Each of the two first mounting blocks 81 has a first roller 82 rotatably mounted on its opposite side via bearings. One end of one first roller 82 is provided with a telescopic sleeve 84, and one end of the other first roller 82 is provided with a telescopic rod 85. The telescopic rod 85 and the telescopic sleeve 84 are slidably mounted. A third motor 83 is fixedly mounted on one side of one of the first mounting blocks 81, and one of the first rollers 82 is driven by the third motor 83. A second mounting block 86 is disposed on the other side of each of the two limiting plates 6. A sliding rod 87 is disposed on the top of each of the two first mounting blocks 81 and the two second mounting blocks 86. A sliding joint is slidably mounted on the outside of each pair of sliding rods 87. The movable frame 88 has a second spring 810 sleeved on the outside of each of the four sliding rods 87. A second roller 89 is rotatably mounted on the opposite side of the two movable frames 88 and directly above the first roller 82. Brushes 811 are provided on the opposite side of the two second mounting blocks 86 and the two movable frames 88. A connector 812 is provided between the tops of the two movable frames 88. The distance between the two limiting plates 6 is adjusted according to the width of the paper by the limiting mechanism 5. The paper is placed between the second roller 89 and the first roller 82. The third motor 83 drives the first roller 82 to rotate. Due to the cooperation of the telescopic sleeve 84 and the telescopic rod 85, the two first rollers 82 rotate together, thereby conveying the paper. The paper is conveyed between the two brushes 811, and the brushes 811 effectively clean the surface of the paper.

[0033] The above embodiments disclose an adjustable precision paper positioning and conveying device. A first motor 52 drives a reversible screw 51 to rotate, changing the distance between two limiting plates 6 to facilitate adjustment based on the paper width for paper positioning. A limiting wheel 9 reduces friction between the paper and the limiting plates 6, placing the paper between a second roller 89 and a first roller 82. A third motor 83 drives the first roller 82 to rotate. Due to the cooperation of the telescopic sleeve 84 and the telescopic rod 85, both first rollers 82 rotate together, thus conveying the paper. The paper is then conveyed between two brushes 811, which effectively clean the paper surface.

[0034] The first spring 44 is always in a compressed state, providing downward pressure to the lifting frame 41, so that the first conveying roller 42 and the second conveying roller 73 are always in contact. The paper passes between the first conveying roller 42 and the second conveying roller 73. The second motor 72 drives the second conveying roller 73 to rotate, thereby flattening the paper and preventing wrinkles. Finally, the paper is conveyed into the printing press 10 for printing.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An adjustable precision paper positioning and conveying device, comprising a base (1), two mounting brackets (2) symmetrically arranged on the top of the base (1), mounting slots (3) are provided on opposite sides of the two mounting brackets (2), a conveying mechanism (7) is provided on the top of the base (1) and on one side of the mounting brackets (2), and a printing press (10) is provided on the top of the base (1) and on one side of the conveying mechanism (7). characterized in that The two mounting slots (3) are provided with a pressing mechanism (4), and the two mounting brackets (2) are provided with a limiting mechanism (5). The limiting mechanism (5) is provided with two limiting plates (6) on the outside. The two limiting plates (6) are provided with a limiting wheel (9) installed inside by bearing rotation. The two limiting plates (6) are provided with a dust removal mechanism (8) on the outside.

2. The adjustable-precision paper positioning and conveying device according to claim 1, characterized in that, The limiting mechanism (5) includes a positive and negative screw (51), which is rotatably mounted between two mounting brackets (2) via bearings. A first motor (52) is fixedly mounted on one side of one of the mounting brackets (2), and the positive and negative screw (51) is driven by the first motor (52). A second limiting rod (53) is provided between the two mounting brackets (2) and above the positive and negative screw (51).

3. The adjustable-precision paper positioning and conveying device according to claim 2, characterized in that, The limiting plate (6) is threadedly connected to the positive and negative screws (51), and the limiting plate (6) is slidably installed with the second limiting rod (53).

4. The adjustable-precision paper positioning and conveying device according to claim 1, characterized in that, The conveying mechanism (7) includes two fixed plates (71), both of which are set on the top of the base (1). A second motor (72) is fixedly installed on one side of one of the fixed plates (71). A second conveying roller (73) is rotatably installed between the two fixed plates (71) through a bearing, and the second conveying roller (73) is driven by the second motor (72).

5. The adjustable-precision paper positioning and conveying device according to claim 4, characterized in that, The pressing mechanism (4) includes two lifting frames (41). The two lifting frames (41) are slidably installed with the two mounting frames (2) respectively through the mounting groove (3). A first conveying roller (42) is rotatably installed between the two lifting frames (41) and directly above the second conveying roller (73) through a bearing. A first limiting rod (43) is fixedly installed inside the two mounting grooves (3). The lifting frame (41) and the first limiting rod (43) are slidably installed. A first spring (44) is sleeved on the outside of the first limiting rod (43) and above the lifting frame (41).

6. The paper positioning and conveying device with adjustable accuracy according to claim 1, characterized in that, The dust removal mechanism (8) includes two first mounting blocks (81), which are respectively set on one side of two limiting plates (6). On the opposite side of the two first mounting blocks (81), a first roller (82) is rotatably mounted by bearings. One end of one of the first rollers (82) is provided with a telescopic sleeve (84), and one end of the other first roller (82) is provided with a telescopic rod (85). The telescopic rod (85) and the telescopic sleeve (84) are slidably mounted. A third motor (83) is fixedly mounted on one side of one of the first mounting blocks (81), and one of the first rollers (82) is driven by the third motor (83).

7. The adjustable-precision paper positioning and conveying device according to claim 6, characterized in that, A second mounting block (86) is provided on the other side of each of the two limiting plates (6). A slide rod (87) is provided on the top of each of the two first mounting blocks (81) and the two second mounting blocks (86). A movable frame (88) is slidably mounted on the outside of each pair of slide rods (87). A second spring (810) is sleeved on the outside of each of the four slide rods (87). A second roller (89) is rotatably mounted on the opposite side of the two movable frames (88) and directly above the first roller (82).

8. The paper positioning and conveying device with adjustable accuracy according to claim 7, characterized in that, Each of the two second mounting blocks (86) and the two movable frames (88) is provided with a brush (811) on the opposite side, and a connector (812) is provided between the tops of the two movable frames (88).

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