Circumferential plate pulling structure of printing machine

Abstract

The utility model discloses a circumferential plate pulling structure of a printing machine, which comprises a base structure, an adjusting and detecting structure is arranged in the base structure, the base structure comprises a motor and a speed reducer device, the motor and the speed reducer device are connected with a bevel gear device, and the bevel gear device is rotatably connected with a screw rod through a support. A nut and a gap adjusting nut are fixed to one side of the support, rubber sheet cylinder gears are symmetrically installed on the support, one end of the screw is connected with the plate cylinder gear assembly and the end cover through a bearing seat and a cylindrical pin, gear hubs are installed below the plate cylinder gear assembly, and meanwhile a cylinder is installed between the gear hubs. The adjusting and detecting structure comprises a connecting block set fixed between the bearing seat and the support, and the circumferential plate pulling structure of the printing machine is fixedly connected through the arranged support.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a circumferential plate pulling structure of a printing machine. Background Art

[0002] At present, the printing cylinder support of commercial rotary presses generally adopts three-ring eccentric bearings. This circumferential plate-drawing structure is a design form suitable for three-ring eccentric bearings. After searching, it was found that the publication number in the existing public technology is: CN210174369U. A printing press circumferential plate-drawing structure includes a roller and a rubber roller meshed by gears. The roller is connected to the gear hub, and the gear hub is connected to the plate cylinder gear assembly through a cylindrical pin, and there is axial freedom of movement between the two. The plate cylinder gear assembly is connected to a screw rod, which is meshed with a nut fixed on the bracket. The screw rod is connected to the motor and the reducer device through a bevel gear device, and the gear is a helical gear. There are three cylindrical pins, which are distributed in an isosceles triangle on the circumference. The drum gear and the hub are connected as a whole through a pin shaft and installed on the plate cylinder. The plate cylinder can be moved in the circumferential direction by changing the connection position between the plate cylinder gear assembly and the gear hub, thereby adjusting the relative positions of the plate cylinder body and the rubber cloth cylinder body in the circumferential direction, improving the accuracy of circumferential plate adjustment, and achieving correct overprinting of printing.

[0003] To sum up: In the above case, the power is provided by the AC220V motor and the reducer device. Secondly, the power is converted to the screw by 90 degrees through the bevel gear device. The nut and the gap adjustment nut are fixed to the bracket and are in a stationary state. The screw rotates and moves horizontally axially at the same time. The plate roller gear assembly is pulled relative to the rubber roller gear through the bearing and other related parts. The gear adopts a helical gear, and the β angle is used to rotate the plate roller gear assembly, which will drive the circumferential rotation of the roller to achieve the circumferential overprint of the roller. From this, it can be clearly known that in the above case, whether the plate roller gear assembly is adjusted in place can only be judged by the meshing method between the gears. When judging the gear meshing method, not only is the adjustment distance unclear, but it is also easy to make adjustments incorrectly and cause tooth problems. Utility Model Content

[0004] The purpose of the utility model is to provide a circumferential plate pulling structure for a printing press in view of the deficiencies in the prior art, so as to solve the problem proposed in the above background technology that whether the printing plate roller gear assembly is adjusted in place is judged by the meshing mode between gears. When judging the meshing mode of gears, not only is there a situation that the adjustment distance is unclear, but also adjustment errors are prone to occur, resulting in tooth jamming problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circumferential plate-pulling structure of a printing press, comprising a basic structure, wherein an adjustment detection structure is provided inside the basic structure;

[0006] The basic structure includes a motor and a reducer device, and the motor and the reducer device are installed and connected with the bevel gear device, and the bevel gear device is rotatably connected with the screw through a bracket;

[0007] A nut and a gap adjustment nut are respectively fixed on one side of the bracket, and a rubber roller gear is symmetrically mounted on the bracket.

[0008] By adopting the above technical solution, the provided bracket also plays a role of fixed connection.

[0009] Preferably, one end of the screw is respectively connected to the plate cylinder gear assembly and the end cover through a bearing seat and a cylindrical pin, and a gear hub is installed below the plate cylinder gear assembly, and a roller is installed between the gear hubs.

[0010] By adopting the above technical solution, the bearing seat is provided to achieve installation connection.

[0011] Preferably, the adjustment detection structure includes a connection block group respectively fixed between the bearing seat and the bracket, and one end of the connection block group is fixedly connected to a connection frame with a hollow structure inside, and a through hole is opened through the surface of the connection frame.

[0012] By adopting the above technical solution, a bidirectional fixed connection is achieved through the provided connection block group.

[0013] Preferably, a guide groove is provided inside the connection frame, and the guide groove is slidably adjusted by a guide block and a matching column, and a distance measuring plate is fixed on the surface of the matching column, and one end of the matching column is fixedly connected to another connection block group.

[0014] By adopting the above technical solution, the distance measuring board is provided to achieve contact detection.

[0015] Preferably, a fixing frame is fixed on the connecting block group, and a through hole recessed block is fixed below the fixing frame, and a proximity sensing module is fixed on one side of the through hole recessed block.

[0016] By adopting the above technical solution, the fixing frame is provided to achieve installation and fixing.

[0017] Preferably, the connection shape between the connection frame and the matching column is a "U" character.

[0018] By adopting the above technical solution, the connection column is provided to achieve the opening and fixing.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the circumferential plate pulling structure of the printing press,

[0020] (1) In this case, the adjustment detection structure is set to solve the problem of judging whether the plate cylinder gear assembly is adjusted in place by the meshing mode between the gears. When judging the meshing mode of the gears, not only is the adjustment distance unclear, but also adjustment errors are prone to occur, resulting in tooth problems. When the screw rotates, the bearing seat drives the matching column and the connecting frame to be relatively adjusted, and when the matching column is adjusted, the distance measuring plate and the proximity sensing module are driven to be relatively adjusted. At this time, when the proximity sensing module contacts the distance measuring plate, the detection signal is transmitted to the controller of the printing press. At this time, the controller analyzes the axial adjustment distance of the plate cylinder gear assembly according to the contact signal transmitted by the proximity sensing module;

[0021] (2) By setting up: the basic structure, the problem of the roller gear, gear hub and other parts in the circumferential plate adjustment is solved. The pin holes are processed according to the drawings, and then the assembly personnel assemble the pin shaft to ensure that the action of changing the connection position of the plate roller gear assembly and the gear hub can be realized. By changing the connection position of the plate roller gear assembly and the gear hub, the relative position of the plate cylinder body and the rubber cloth cylinder body in the circumferential direction can be adjusted. The printing plate moves with the plate cylinder, thereby changing the position parallel to the upper and lower directions of the image to achieve the correct position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the basic structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the connection block group, the connection frame, the through hole, the fixing frame, the through hole recess block and the proximity sensing module of the utility model;

[0025] Figure 4 The utility model is a schematic diagram of the structure of the connection frame, through hole, guide groove, guide block, matching column and distance measuring plate.

[0026] In the figure: 1. Basic structure; 101. Motor and reducer device; 102. Bevel gear device; 103. Bracket; 104. Screw; 105. Nut; 106. Adjustment nut; 107. Rubber roller gear; 108. Bearing seat; 109. Cylindrical pin; 1010. Plate roller gear assembly; 1011. End cover; 1012. Gear hub; 1013. Roller; 2. Adjustment and detection structure; 201. Connection block group; 202. Connection frame; 203. Through hole; 204. Guide groove; 205. Guide block; 206. Matching column; 207. Distance measuring plate; 208. Fixing frame; 209. Through hole concave block; 2010. Proximity sensing module. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model 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 in 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.

[0028] See also Figure 1-4 The utility model provides a technical solution: a circumferential plate pulling structure of a printing press, such as Figure 1 and Figure 2 As shown, the basic structure 1 includes a motor and a reducer device 101, and the motor and the reducer device 101 are installed and connected with the bevel gear device 102, and the bevel gear device 102 is rotationally connected with the screw 104 through a bracket 103, wherein the above-mentioned components constitute a rotation adjustment structure, and the above-mentioned components all adopt the component installation settings in the comparative document, and the normal drive adjustment of the overall structure is ensured when the component installation settings in the comparative document are used.

[0029] Furthermore, in the above scheme, a nut 105 and a gap adjustment nut 106 are respectively fixed on one side of the bracket 103, and a rubber roller gear 107 is symmetrically installed on the bracket 103, wherein the above-mentioned components also adopt the component installation setting in the comparative document, and the rotation adjustment of the screw 104 is also ensured when the component installation setting in the comparative document is used.

[0030] Furthermore, in the above scheme, one end of the screw 104 is respectively installed and connected to the plate roller gear assembly 1010 and the end cover 1011 through the bearing seat 108 and the cylindrical pin 109, and a gear hub 1012 is installed under the plate roller gear assembly 1010, and a roller 1013 is installed between the gear hubs 1012, wherein the above-mentioned components also adopt the component installation settings in the comparative document, and also ensure the rotation adjustment of the roller 1013 when using the component installation settings in the comparative document.

[0031] In the above scheme, the motor and reducer device 101 provide power, and then the power is converted by the bevel gear device 102 to the screw 104 by 90 degrees. The nut 105 and the gap adjustment nut 106 are fixed to the bracket 103 and are in a stationary state. The screw 104 rotates and moves horizontally axially at the same time, and the plate roller gear assembly 1010 is pulled to move relative to the rubber roller gear 107 through the bearing seat 108 and other related parts. The gears are helical gears, and the β angle is used to rotate the plate roller gear assembly 1010, which will drive the roller 1013 to rotate circumferentially to achieve circumferential overprinting of the roller.

[0032] like Figure 3 and Figure 4 As shown, an adjustment detection structure 2 is provided inside the basic structure 1, and the adjustment detection structure 2 includes a connecting block group 201 respectively fixed between the bearing seat 108 and the bracket 103, and one end of the connecting block group 201 is fixedly connected to a connecting frame 202 with an internal hollow structure. At the same time, a through hole 203 is opened through the surface of the connecting frame 202, and the connection shape of the connecting frame 202 and the matching column 206 is a "U" character. When the connection shape of the above two is a U-shaped structure, it not only reflects the matching connectivity of the above two, but also reflects the relative displacement adjustability of the above two. When the connection shape of the above two is a U-shaped structure, it also reflects the practicality and practical aesthetics of the connection of the above two.

[0033] Furthermore, in the above scheme, a guide groove 204 is opened inside the connecting frame 202, and the guide groove 204 is slidably adjusted through the guide block 205 and the matching column 206. At the same time, a distance measuring plate 207 is fixed on the surface of the matching column 206, and one end of the matching column 206 is fixedly connected to another connecting block group 201. The above components constitute a relative sliding structure, and the relative sliding interval distance between the matching column 206 and the connecting frame 202 is changed by utilizing the relative sliding structure constituted by the above components.

[0034] In the above solution, a fixing frame 208 is fixed on the connecting block set 201 , and a through hole recess block 209 is fixed below the fixing frame 208 , and a proximity sensing module 2010 is fixed on one side of the through hole recess block 209 .

[0035] In the above scheme, during the rotation of the screw 104, the bearing seat 108 drives the matching column 206 and the connecting frame 202 to be relatively adjusted in force, and when the matching column 206 is adjusted in force, it drives the distance measuring plate 207 and the proximity sensing module 2010 to be relatively driven and adjusted. At this time, when the proximity sensing module 2010 contacts the distance measuring plate 207, it transmits a detection signal to the controller of the printing press. At this time, the controller analyzes the axial adjustment distance of the plate cylinder gear assembly 1010 based on the contact signal transmitted by the proximity sensing module 2010.

[0036] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circumferential plate drawing structure of a printing press, comprising a basic structure (1), characterized in that: The basic structure (1) is provided with an adjustment and detection structure (2) inside; The basic structure (1) includes a motor and a reducer device (101), and the motor and the reducer device (101) are installed and connected with a bevel gear device (102), and the bevel gear device (102) is rotationally connected with a screw rod (104) through a bracket (103); A nut (105) and a gap adjustment nut (106) are respectively fixed to one side of the bracket (103), and a rubber roller gear (107) is symmetrically mounted on the bracket (103).

2. A printing press circumferential plate drawing structure according to claim 1, characterized in that: One end of the screw rod (104) is respectively connected to the plate cylinder gear assembly (1010) and the end cover (1011) through a bearing seat (108) and a cylindrical pin (109), and a gear hub (1012) is installed below the plate cylinder gear assembly (1010), and a roller (1013) is installed between the gear hubs (1012).

3. A printing press circumferential plate drawing structure according to claim 1, characterized in that: The adjustment detection structure (2) comprises a connection block group (201) respectively fixed between the bearing seat (108) and the bracket (103), and one end of the connection block group (201) is fixedly connected to a connection frame (202) having a hollow structure inside, and a through hole (203) is opened through the surface of the connection frame (202).

4. A printing press circumferential plate drawing structure according to claim 3, characterized in that: A guide groove (204) is provided inside the connection frame (202), and the guide groove (204) is slidably adjusted through a guide block (205) and a matching column (206), and a distance measuring plate (207) is fixed on the surface of the matching column (206), and one end of the matching column (206) is fixedly connected to another connection block group (201).

5. The circumferential plate drawing structure of a printing press according to claim 3, characterized in that: A fixing frame (208) is fixed on the connection block group (201), and a through hole recessed block (209) is fixed below the fixing frame (208), while a proximity sensing module (2010) is fixed on one side of the through hole recessed block (209).

6. A printing press circumferential plate drawing structure according to claim 3, characterized in that: The connection shape of the connection frame (202) and the matching column (206) is a "U" character.

Images