Paper conveying turnover device for offset press

Abstract

The utility model belongs to the technical field of offset presses, particularly relates to a paper conveying turnover device for an offset press, and aims to solve the technical problem that paper with different thicknesses cannot be pressed. Comprising a mounting frame, two hinged mounting seats, a driving pivot, a trapezoidal limiting sliding block, a hobbing, a driving disc, a gear ring outer frame, a trapezoidal sliding groove, a rectangular groove A, a rectangular sliding block, a rotating wheel and a material conveying assembly A. The two hinged mounting seats are fixedly mounted on the mounting frame, and the driving pivot is rotatably mounted between the two hinged mounting seats; a rolling gear is fixedly installed on the driving pivot, a threaded rotating rod drives a material conveying assembly B to move, the distance between the material conveying assembly B and a material conveying assembly A installed on an output shaft of an execution air cylinder is made to change, then paper of different thicknesses is pressed, and meanwhile when paper of the same thickness is pressed, the rolling gear is driven by the threaded rotating rod to rotate. And the retraction stroke of the output shaft of the execution air cylinder can be shortened, and the paper overturning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of offset printing machines, in particular to a paper feeding and turning device for offset printing machines. Background Art

[0002] Patent application CN202322870706.0 discloses a paper feeding and turning mechanism for an offset printing machine, comprising: a base, a blocking plate, a conveyor belt, a fixed plate and a slider. The upper end of the base is welded to the lower end of the support column, and the upper end of the support column is welded to the right side of the lower end of the fixed plate, the upper end of the fixed plate is welded to the lower end of the right-angle frame, and the left end of the fixed plate is welded to the right end of the cross bar, and the left end of the cross bar is welded to the right end of another group of support columns. However, the disadvantage of this technical solution is that there is no way to achieve the lamination of paper of different thicknesses. Utility Model Content

[0003] The utility model aims to provide a paper feeding and turning device for an offset printing machine, so as to solve the technical problem that there is no way to realize the lamination of papers of different thicknesses.

[0004] To achieve the above-mentioned purpose, the specific technical solution of the paper feeding and turning device for offset printing machine of the present invention is as follows:

[0005] A paper feeding and turning device for an offset printing machine includes a mounting frame, an articulated mounting seat, a driving pivot, a trapezoidal limit slider, a gear hob, a driving plate, a gear ring outer frame, a trapezoidal slide, a rectangular groove A, a rectangular slider, a rotating wheel, a feeding component A, a rectangular groove B, an executive cylinder, a threaded rotating rod, and a feeding component B. The mounting frame is fixedly mounted with an articulated mounting seat, two articulated mounting seats are provided, a driving pivot is rotatably mounted between the two articulated mounting seats, a gear hob is fixedly mounted on the driving pivot, a trapezoidal limit slider is fixedly mounted on the articulated mounting seat, and the trapezoidal limit slider is slidably limited and mounted in the trapezoidal slide. A trapezoidal slide is opened on the outer frame of the gear ring, and the hobbing gear is engaged with the outer frame of the gear ring for transmission. A driving disc is fixedly installed on the outer frame of the gear ring, and a rectangular groove A is opened on the driving disc. A rectangular slider is slidably installed in the rectangular groove A. The rectangular slider is fixedly installed on one end of the threaded rotating rod, and the other end of the threaded rotating rod is fixedly installed on the feeding component B. A rectangular groove B is opened on the driving disc, and an executive cylinder is installed in the rectangular groove B. The output shaft of the executive cylinder is installed on the feeding component A. A groove A adapted to the rotating wheel is opened in the rectangular groove A. The rotating wheel is rotatably installed in the groove A, and the rotating wheel is threadedly connected to the threaded rotating rod.

[0006] Furthermore, a positioning slot A is provided on the rotating wheel, and there are multiple positioning slots A. A positioning rod A is slidably installed on the driving disk. A positioning rod push spring A is provided between the positioning rod A and the driving disk, and the positioning rod A is cooperatively connected with the positioning slot A.

[0007] Furthermore, a plurality of the positioning slots A are arranged in a circumferential array along the central axis of the rotating wheel.

[0008] Furthermore, an N-shaped notch is provided on the driving disk, the feeding component B is arranged on the upper end face of the N-shaped notch, and two feeding components A are provided on the lower end face of the N-shaped notch, wherein the feeding component A that is not connected to the execution cylinder is fixedly installed on the lower end face of the N-shaped notch.

[0009] Furthermore, a power motor A is installed on the mounting frame, and the output shaft of the power motor A is connected to the driving pivot.

[0010] Furthermore, the feeding component B is assembled by splicing two feeding components A.

[0011] Furthermore, the feeding assembly A includes a carrying mounting base, a driven roller, a driven mounting shaft, a transmission belt, a driven pulley, a driving pulley, a driving roller, a driving motor, a motor mounting base, and a driving mounting shaft. The carrying mounting base is rotatably mounted with the driven mounting shaft, one end of the driven mounting shaft is fixedly mounted with the driven roller, and the other end of the driven mounting shaft is fixedly mounted with the driven pulley. The carrying mounting base is rotatably mounted with the driving mounting shaft, one end of the driving mounting shaft is mounted on the output shaft of the driving motor, and the other end of the driving mounting shaft is fixedly mounted with the driving pulley. A transmission belt is connected between the driving pulley and the driven pulley, the driving roller is fixedly mounted on the driving mounting shaft, the driving motor is mounted on the motor mounting base, and the motor mounting base is fixedly mounted on the carrying mounting base.

[0012] Furthermore, a pressing wheel is rotatably mounted on the carrier mounting base plate, and the pressing wheel is in rolling contact with the transmission belt.

[0013] Furthermore, the output shaft of the actuator cylinder is mounted on the carrier mounting base plate.

[0014] Furthermore, the carrying and mounting base plate in the feeding assembly A which is not connected to the execution cylinder is fixedly mounted on the lower end surface of the N-shaped notch.

[0015] The advantages of the present invention are:

[0016] 1. Start the power motor A, and then drive the driving pivot to rotate through the power motor A, and then drive the hobbing gear to rotate through the driving pivot, and then drive the gear hobbing to rotate the outer frame of the gear ring, and then drive the driving disk to rotate through the outer frame of the gear ring, and at the same time start the execution cylinder, so that the execution cylinder drives the feeding assembly A connected thereto to move, so that the feeding assembly A and the feeding assembly B can press the paper to be turned over, and with the drive of the outer frame of the gear ring, the paper is turned over; when the turning is completed, the output shaft of the execution cylinder is retracted, and the turned paper is transported through the feeding assembly B, so that the turned paper is convenient to take; at the same time, manually rotate the rotating wheel, and through the threaded connection between the rotating wheel and the threaded rotating rod, the threaded rotating rod drives the feeding assembly B to move, so that the distance between the feeding assembly B and the feeding assembly A installed on the output shaft of the execution cylinder changes, so as to achieve the pressing of papers of different thicknesses. At the same time, when pressing papers of the same thickness, the retraction stroke of the output shaft of the execution cylinder can also be shortened, so as to improve the efficiency of paper turning;

[0017] 2. Start the drive motor, which drives the active mounting shaft through the drive motor, and then drives the active roller to rotate through the active mounting shaft, and at the same time drives the active pulley to rotate, and drives the driven pulley, the driven mounting shaft and the driven roller to rotate through the transmission belt, and realizes the transportation of paper materials through the active roller and the driven roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the cutting line position;

[0020] Figure 3 for Figure 2 Cross-sectional view along section AA;

[0021] Figure 4 for Figure 2 Cross-sectional view along section BB;

[0022] Figure 5 This is a schematic diagram of the structure of the feeding component A of the present utility model Figure 1 ;

[0023] Figure 6 This is a schematic diagram of the structure of the feeding component A of the present utility model Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the structure of the feeding component A of the present utility model Figure 3 ;

[0025] Explanation of the marks in the figure: mounting frame 1; articulated mounting base 2; driving pivot 3; trapezoidal limit slider 4; gear hobbing 5; driving disc 6; gear ring outer frame 7; trapezoidal slide 8; rectangular groove A10; rectangular slider 11; rotating wheel 12; positioning card slot A13; feeding assembly A14; carrying mounting base 14-1; driven roller 14-2; driven mounting shaft 14-3; transmission belt 14-4; driven pulley 14-5; driving pulley 14-6; driving roller 14-7; driving motor 14-8; motor mounting base 14-9; active mounting shaft 14-10; rectangular groove B15; actuator cylinder 16; threaded rotating rod 17; feeding assembly B19; positioning card rod A20; positioning card rod push spring A21. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Example 1

[0029] like Figure 1-7As shown, a paper feeding and turning device for an offset printing machine is characterized in that it includes a mounting frame 1, an articulated mounting seat 2, a driving pivot 3, a trapezoidal limiting slider 4, a gear hob 5, a driving disk 6, a gear ring outer frame 7, a trapezoidal slide 8, a rectangular groove A10, a rectangular slider 11, a rotating wheel 12, a feeding assembly A14, a rectangular groove B15, an executive cylinder 16, a threaded rotating rod 17, and a feeding assembly B19. The mounting frame 1 is fixedly mounted with an articulated mounting seat 2, and two articulated mounting seats 2 are provided. A driving pivot 3 is rotatably mounted between the two articulated mounting seats 2, and a gear hob 5 is fixedly mounted on the driving pivot 3. A trapezoidal limiting slider is fixedly mounted on the articulated mounting seat 2. Block 4, the trapezoidal limit slider 4 is installed in the trapezoidal slide 8, the trapezoidal slide 8 is opened on the outer frame of the gear ring 7, the hobbing 5 is engaged with the outer frame of the gear ring 7 for transmission, the outer frame of the gear ring 7 is fixedly installed with a drive disk 6, the drive disk 6 is provided with a rectangular groove A10, a rectangular slider 11 is slidably installed in the rectangular groove A10, the rectangular slider 11 is fixedly installed on one end of the threaded rotating rod 17, the other end of the threaded rotating rod 17 is fixedly installed on the feeding component B19, the drive disk 6 is provided with a rectangular groove B15, the rectangular groove B15 is provided with an executive cylinder 16, the output shaft of the executive cylinder 16 is installed on the feeding component A14, the rectangular groove A10 is provided with a groove for rotating the wheel 12 is adapted to the groove A, the rotating wheel 12 is rotatably installed in the groove A, and the rotating wheel 12 is threadedly connected with the threaded rotating rod 17. With this arrangement, the power motor A is started, and the driving pivot 3 is driven to rotate by the power motor A, and the hobbing gear 5 is driven to rotate by the driving pivot 3, and the hobbing gear 5 drives the gear ring outer frame 7 to rotate, and the driving disk 6 is driven to rotate by the gear ring outer frame 7. At the same time, the execution cylinder 16 is started, so that the execution cylinder 16 drives the feeding assembly A14 connected thereto to move, so that the feeding assembly A14 and the feeding assembly B19 realize the pressing of the paper that needs to be turned over, and with the drive of the gear ring outer frame 7, the paper is turned over. flipping; when the flipping is completed, the output shaft of the executing cylinder 16 is retracted, and the transportation of the flipped paper is realized through the feeding assembly B19, which makes it convenient to take the flipped paper; at the same time, the rotating wheel 12 is manually rotated, and the threaded connection between the rotating wheel 12 and the threaded rotating rod 17 is used to drive the feeding assembly B19 to move, so that the distance between the feeding assembly B19 and the feeding assembly A14 installed on the output shaft of the executing cylinder 16 changes, thereby realizing the lamination of paper of different thicknesses. At the same time, when laminating paper of the same thickness, the retraction stroke of the output shaft of the executing cylinder 16 can also be shortened, thereby improving the efficiency of paper flipping.

[0030] Among them, a positioning slot A13 is opened on the rotating wheel 12, and there are multiple positioning slots A13. A positioning rod A20 is slidably installed on the driving disk 6. A positioning rod push spring A21 is provided between the positioning rod A20 and the driving disk 6. The positioning rod A20 is cooperatively connected with the positioning slot A13.

[0031] The plurality of positioning slots A13 are arranged in a circumferential array along the central axis of the rotating wheel 12 .

[0032] Example 2

[0033] like Figure 1-7 As shown, the driving disk 6 is provided with an N-shaped notch, the feeding component B19 is arranged on the upper end face of the N-shaped notch, and the lower end face of the N-shaped notch is provided with two feeding components A14, among which the feeding component A14 not connected to the execution cylinder 16 is fixedly installed on the lower end face of the N-shaped notch.

[0034] A power motor A is installed on the mounting frame 1 , and the output shaft of the power motor A is connected to the driving pivot 3 .

[0035] The feeding component B19 is assembled by splicing two feeding components A14.

[0036] Example 3

[0037] like Figure 1-7 As shown, the feeding assembly A14 includes a carrying mounting base 14-1, a driven roller 14-2, a driven mounting shaft 14-3, a transmission belt 14-4, a driven pulley 14-5, a driving pulley 14-6, a driving roller 14-7, a driving motor 14-8, a motor mounting base 14-9, and a driving mounting shaft 14-10. The carrying mounting base 14-1 is rotatably mounted with a driven mounting shaft 14-3, one end of the driven mounting shaft 14-3 is fixedly mounted with a driven roller 14-2, the other end of the driven mounting shaft 14-3 is fixedly mounted with a driven pulley 14-5, and the carrying mounting base 14-1 is rotatably mounted with an active mounting shaft 14-10, one end of the active mounting shaft 14-10 is mounted on the output shaft of the driving motor 14-8, and the other end of the active mounting shaft 14-10 is fixedly mounted with an active Pulley 14-6, a transmission belt 14-4 is connected between the active pulley 14-6 and the driven pulley 14-5, an active roller 14-7 is fixedly mounted on the active mounting shaft 14-10, and a driving motor 14-8 is mounted on a motor mounting base 14-9, and the motor mounting base 14-9 is fixedly mounted on the carrier mounting base 14-1. In this arrangement, the driving motor 14-8 is started, and the active mounting shaft 14-10 is driven by the driving motor 14-8, and then the active roller 14-7 is driven to rotate through the active mounting shaft 14-10, and at the same time drives the active pulley 14-6 to rotate, and drives the driven pulley 14-5, the driven mounting shaft 14-3 and the driven roller 14-2 to rotate through the transmission belt 14-4, and the paper material is transported by the active roller 14-7 and the driven roller 14-2.

[0038] Among them, a pressing wheel 14-11 is rotatably installed on the carrying and mounting base plate 14-1, and the pressing wheel 14-11 is in rolling contact with the transmission belt 14-4.

[0039] Example 4

[0040] like Figure 1-7 As shown, the output shaft of the execution cylinder 16 is mounted on the carrier mounting base plate 14 - 1 .

[0041] The carrying and mounting base plate 14 - 1 in the feeding assembly A14 which is not connected to the execution cylinder 16 is fixedly mounted on the lower end surface of the N-shaped notch.

[0042] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A paper feeding and turning device for an offset printing machine, characterized in that: The invention comprises a mounting frame (1), an articulated mounting seat (2), a driving pivot (3), a trapezoidal limiting slider (4), a gear hob (5), a driving disc (6), a gear ring outer frame (7), a trapezoidal slide (8), a rectangular groove A (10), a rectangular slider (11), a rotating wheel (12), a feeding assembly A (14), a rectangular groove B (15), an execution cylinder (16), a threaded rotating rod (17), and a feeding assembly B (19). The mounting frame (1) is fixedly mounted with an articulated mounting seat (2), two articulated mounting seats (2) are provided, a driving pivot (3) is rotatably mounted between the two articulated mounting seats (2), a gear hob (5) is fixedly mounted on the driving pivot (3), a trapezoidal limiting slider (4) is fixedly mounted on the articulated mounting seat (2), the trapezoidal limiting slider (4) is slidably limited and mounted in the trapezoidal slide (8), and the trapezoidal slide (8) is fixedly mounted with a gear hob (5). The gear ring outer frame (7) is opened, and the hobbing gear (5) is meshed with the gear ring outer frame (7) for transmission. A driving disc (6) is fixedly installed on the gear ring outer frame (7). A rectangular groove A (10) is opened on the driving disc (6). A rectangular slider (11) is slidably installed in the rectangular groove A (10). The rectangular slider (11) is fixedly installed on one end of the threaded rotating rod (17). The other end of the threaded rotating rod (17) is fixedly installed on the feeding component B (19). A rectangular groove B (15) is opened on the driving disc (6). An executing cylinder (16) is installed in the rectangular groove B (15). The output shaft of the executing cylinder (16) is installed on the feeding component A (14). A groove A adapted to the rotating wheel (12) is opened in the rectangular groove A (10). The rotating wheel (12) is rotatably installed in the groove A. The rotating wheel (12) is threadedly connected to the threaded rotating rod (17).

2. A paper feeding and turning device for an offset printing machine according to claim 1, characterized in that: A positioning slot A (13) is provided on the rotating wheel (12), and a plurality of positioning slots A (13) are provided. A positioning rod A (20) is slidably mounted on the driving disk (6). A positioning rod push spring A (21) is provided between the positioning rod A (20) and the driving disk (6). The positioning rod A (20) is cooperatively connected with the positioning slot A (13).

3. The paper feeding and turning device for an offset printing machine according to claim 2, characterized in that: The plurality of positioning slots A (13) are arranged in a circumferential array along the central axis of the rotating wheel (12).

4. The paper feeding and turning device for an offset printing machine according to claim 1, characterized in that: The driving disc (6) is provided with an N-shaped notch, a feeding assembly B (19) is arranged on the upper end surface of the N-shaped notch, and two feeding assemblies A (14) are arranged on the lower end surface of the N-shaped notch, wherein the feeding assembly A (14) not connected to the execution cylinder (16) is fixedly installed on the lower end surface of the N-shaped notch.

5. The paper feeding and turning device for an offset printing machine according to claim 1, characterized in that: A power motor A is mounted on the mounting frame (1), and the output shaft of the power motor A is connected to the driving pivot (3).

6. The paper feeding and turning device for an offset printing machine according to claim 1, characterized in that: The feeding component B (19) is assembled by splicing two feeding components A (14).

7. The paper feeding and turning device for an offset printing machine according to claim 1, characterized in that: The feeding assembly A (14) comprises a carrying mounting base (14-1), a driven roller (14-2), a driven mounting shaft (14-3), a transmission belt (14-4), a driven pulley (14-5), a driving pulley (14-6), a driving roller (14-7), a driving motor (14-8), a motor mounting base (14-9), and a driving mounting shaft (14-10); the carrying mounting base (14-1) is rotatably mounted with the driven mounting shaft (14-3); one end of the driven mounting shaft (14-3) is fixedly mounted with the driven roller (14-2); the other end of the driven mounting shaft (14-3) is fixedly mounted with the driven pulley (14-5); An active installation shaft (14-10) is rotatably mounted on the carrier installation base plate (14-1), one end of the active installation shaft (14-10) is mounted on the output shaft of the drive motor (14-8), a driving pulley (14-6) is fixedly mounted on the other end of the active installation shaft (14-10), a transmission belt (14-4) is connected between the driving pulley (14-6) and the driven pulley (14-5), an active roller (14-7) is fixedly mounted on the active installation shaft (14-10), the drive motor (14-8) is mounted on the motor installation base (14-9), and the motor installation base (14-9) is fixedly mounted on the carrier installation base plate (14-1).

8. The paper feeding and turning device for an offset printing machine according to claim 7, characterized in that: A pressing wheel (14-11) is rotatably mounted on the carrying and mounting base plate (14-1), and the pressing wheel (14-11) is in rolling contact with the transmission belt (14-4).

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