Inking and ink scraping mechanism of offset press

Abstract

The utility model relates to the technical field of offset presses, and discloses an inking and scraping mechanism of an offset press, which comprises an offset press shell and a printing ink collecting bin, the offset press shell comprises a paper inlet, an offset printing roller and a rotating rod, the paper inlet is arranged in the middle of the top of the offset press shell, and the offset printing roller is arranged in the middle of the offset press shell. A paper inlet is formed in the offset press shell and penetrates into the offset press shell, the offset printing rollers are symmetrically arranged at the two ends of the interior of the offset press shell, the rotating rods are arranged in the middles of the interiors of the offset printing rollers, the printing ink collecting bin comprises ink injection hoppers, movable plates, supporting rods, air cylinders, rotating motors and rotating shafts, and the ink injection hoppers are symmetrically arranged at the two ends of the offset press shell. The ink feeding roller can be driven to rotate through the rotating motor and the rotating shaft, and the movable plate can be driven to move left and right through the air cylinder and the supporting rod, so that the ink feeding roller can move left and right while rotating, ink feeding on an offset printing roller is more uniform, and the printing quality of an offset press is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of offset printing machines, in particular to an inking and scraping mechanism of an offset printing machine. Background Art

[0002] An offset printing press is a type of lithographic printing press. During printing, the printed image is first printed from the printing plate onto a rubber cylinder, and then transferred to the paper by the rubber cylinder. The inking mechanism and the scraping mechanism are one of the main mechanisms of the offset printing press.

[0003] The application number is CN202021808390.2. An inking and scraping mechanism of an offset printing press comprises an ink storage box, a collecting box is provided on one side of the ink storage box, an inking roller is rotatably connected to the inside of the ink storage box near the collecting box, and two support frames are symmetrically provided on the top wall of the collecting box near the side of the ink storage box... and the two are plugged into each other. The inking and scraping mechanism of the offset printing press can ink more evenly, improve the printing effect of the offset printing press, prevent the scraper from damaging the offset printing roller, and extend the service life of the offset printing roller; this inking mechanism only inks through contact with the inking roller, and cannot effectively and evenly ink, resulting in poor printing quality, and it is inconvenient to adjust the degree of contact between the scraper and the offset printing roller, resulting in poor scraping effect on the offset printing roller, affecting the use of the offset printing press. Utility Model Content

[0004] The purpose of the utility model is to provide an inking and scraping mechanism for an offset printing press to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inking and scraping mechanism of an offset printing press, comprising an offset printing press housing and an ink collecting chamber, the offset printing press housing comprising a paper inlet, an offset roller and a rotating rod, the paper inlet being arranged at the middle position of the top of the offset printing press housing, and the paper inlet penetrating into the interior of the offset printing press housing, the offset rollers being symmetrically arranged at both ends of the interior of the offset printing press housing, the rotating rod being arranged at the middle position of the interior of the offset roller, the ink collecting chamber comprising an ink filling hopper, an active A movable plate, a support rod, a cylinder, a rotating motor, a rotating shaft and an inking roller, the ink filling fountain is symmetrically arranged at both ends of the offset printing machine housing, the movable plate is symmetrically arranged at both ends of one side of the offset printing machine housing, the support rod is welded to one side of the offset printing machine housing, the cylinder is arranged at one end of the movable plate, and the telescopic end of the cylinder is connected to one side of the offset printing machine housing, the rotating motor is installed on one side of the movable plate, the rotating shaft is arranged at the output end of the rotating motor, and the rotating shaft passes through the interior of the ink filling fountain, and the inking roller is arranged on the outside of the rotating shaft.

[0006] Preferably, an empty slot is provided inside the ink filling fountain, and the ink filling fountain is connected to the ink collecting bin through the empty slot. Both ends of one side of the offset printing machine housing are provided with drainage pipes, and valves are installed inside the drainage pipes.

[0007] Preferably, a scraper is provided inside the ink collection bin, movable grooves are provided at both ends of both sides of the offset printing machine housing, and both ends of the scraper pass through the interior of the movable grooves, and fixed blocks are welded at both ends of both sides of the offset printing machine housing, and a limit rod is provided inside one group of the fixed blocks and passes through one end of the scraper, and an adjusting screw is provided inside the other group of the fixed blocks and passes through the other end of the scraper.

[0008] Preferably, bearings are provided at both ends of both sides of the offset printing machine housing, and both ends of the rotating rod pass through the inside of the bearing and are rotatably connected to the offset printing machine housing.

[0009] Preferably, the offset roller is rotatably connected to the offset printing machine housing via a rotating rod, movable holes are provided at the four corners inside the movable plate, and the support rods pass through the movable holes.

[0010] Preferably, the rotating motor is detachably connected to the movable plate via a fixing bolt, and the ink application roller is in contact with the rotating rod.

[0011] Preferably, the ink application roller is transmission-connected to the rotary motor via a rotating shaft, and the cylinder is detachably connected to the movable plate via a fixing bolt.

[0012] Preferably, the scraper is movably connected to the offset printing machine housing through a movable groove, and the top of the scraper is an arc-shaped structure.

[0013] Preferably, a limiting hole is provided at one end inside the scraper, and the limiting rod passes through the limiting hole.

[0014] Preferably, the other end of the scraper is provided with a threaded hole matching the adjusting screw, and the scraper is threadedly connected to the adjusting screw through the threaded hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model can drive the inking roller to rotate by rotating the motor and the rotating shaft, and can drive the movable plate to move left and right by the cylinder and the support rod, so that the inking roller can move left and right while rotating, and the inking of the offset roller is more uniform, so that the printing quality of the offset printing machine is higher;

[0017] 2. The utility model can adjust the scraper up and down in the movable groove by adjusting the screw and the limit rod, so that the contact tightness between the scraper and the offset roller can be adjusted, which is convenient for scraping ink on the offset roller and has a better scraping effect on the offset roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without inventive effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a front sectional view of the present utility model.

[0021] Figure 3 It is a side sectional view of the present utility model.

[0022] In the figure: 1. Offset printing machine housing; 101. Paper inlet; 102. Offset printing roller; 103. Rotating rod; 2. Ink collecting chamber; 201. Ink filling hopper; 202. Movable plate; 203. Support rod; 204. Cylinder; 205. Rotating motor; 206. Rotating shaft; 207. Ink roller; 208. Drain pipe; 3. Scraper; 301. Movable trough; 302. Fixed block; 303. Limiting rod; 304. Adjusting screw. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-3 , the utility model provides an embodiment of an inking and scraping mechanism of an offset printing press: an inking and scraping mechanism of an offset printing press, comprising an offset printing press housing 1 and an ink collecting bin 2, the offset printing press housing 1 comprising a paper inlet 101, an offset roller 102 and a rotating rod 103, the paper inlet 101 is arranged at the middle position of the top of the offset printing press housing 1, and the paper inlet 101 passes through the interior of the offset printing press housing 1, the offset roller 102 is symmetrically arranged at both ends inside the offset printing press housing 1, the rotating rod 103 is arranged at the middle position inside the offset roller 102, an external power mechanism can be connected to the rotating rod 103, so that the offset roller 102 can be driven to rotate, the ink collecting bin 2 comprises an ink filling hopper 201, a movable plate 202, a support rod 203, a cylinder 204 and a rotating motor 205, a rotating shaft 206 and an inking roller 207, an ink filling hopper 201, a movable plate 202, a support rod 203, a cylinder 204 and a rotating motor 205, a rotating shaft 206 and an inking roller 207, The ink fountain 201 is symmetrically arranged at both ends of the offset printing machine housing 1, and can be used to ink the two sets of offset printing rollers 102, so as to facilitate the dripping of printing ink onto the inking roller 207. The movable plate 202 is symmetrically arranged at both ends of one side of the offset printing machine housing 1, and the support rod 203 is welded to one side of the offset printing machine housing 1. The cylinder 204 is arranged at one end of the movable plate 202, and the cylinder 204 provides power for the left and right movement of the movable plate 202, and the telescopic end of the cylinder 204 is connected to one side of the offset printing machine housing 1. The rotating motor 205 is installed on one side of the movable plate 202, and the rotating shaft 206 is arranged at the output end of the rotating motor 205, and the rotating shaft 206 passes through the interior of the ink fountain 201, and the inking roller 207 is arranged on the outside of the rotating shaft 206. The inking roller 207 can be driven to rotate by rotating the motor 205 and the rotating shaft 206, which is convenient for inking the offset printing roller 102.

[0028] Please refer to Figure 1 and Figure 2, the ink filling hopper 201 is provided with an empty slot, and the ink filling hopper 201 is connected to the ink collecting chamber 2 through the empty slot, so that excess ink can flow into the ink collecting chamber 2. Both ends of one side of the offset printing machine housing 1 are provided with a drain pipe 208, and a valve is installed inside the drain pipe 208 to facilitate the discharge of the ink in the ink collecting chamber 2. The ink collecting chamber 2 is provided with a scraper 3. Both ends of both sides of the offset printing machine housing 1 are provided with a movable slot 301, and both ends of the scraper 3 pass through the movable slot 301. Internally, the scraper 3 can scrape ink from the offset roller 102. Fixed blocks 302 are welded to both ends of the offset printing machine housing 1. A set of fixed blocks 302 is provided with a limit rod 303 that penetrates one end of the scraper 3. The limit rod 303 is used to make the lifting and lowering adjustment of the scraper 3 more stable. The other set of fixed blocks 302 is provided with an adjusting screw 304 that penetrates the other end of the scraper 3. The scraper 3 can be adjusted up and down, thereby adjusting the degree of contact between the scraper 3 and the offset roller 102.

[0029] Please refer to Figure 1 and Figure 3 , bearings are provided at both ends of both sides of the offset printing machine housing 1, and both ends of the rotating rod 103 are penetrated into the bearing interior and are rotatably connected to the offset printing machine housing 1, so that the rotation of the rotating rod 103 is more stable, and the offset roller 102 is rotatably connected to the offset printing machine housing 1 through the rotating rod 103, so that the offset roller 102 can rotate, and movable holes are provided at the four corners of the movable plate 202, and the support rod 203 is penetrated into the movable hole interior, and the movable plate 202 and the support rod 203 can be moved through the movable hole, so that the movable plate 202 02's adjustment is more stable, the rotating motor 205 is detachably connected to the movable plate 202 by a fixing bolt, the rotating motor 205 is installed on one side of the movable plate 202, the inking roller 207 is in contact with the rotating rod 103, the inking roller 207 is connected to the rotating motor 205 through the rotating shaft 206, and the rotating motor 205 provides power for the rotation of the inking roller 207, the cylinder 204 is detachably connected to the movable plate 202 by a fixing bolt, so that the cylinder 204 is installed on one side of the movable plate 202.

[0030] Please refer to Figure 1 and Figure 2 The scraper 3 is movably connected to the offset printing machine housing 1 through the movable groove 301. The scraper 3 can be moved between the offset printing machine housing 1 through the movable groove 301. The top of the scraper 3 is an arc-shaped structure to prevent the scraper 3 from scratching the offset roller 102. A limiting hole is provided at one end of the scraper 3, and the limiting rod 303 passes through the limiting hole. The limiting rod 303 makes the up and down adjustment of the scraper 3 more stable. A threaded hole matching the adjusting screw 304 is provided at the other end of the scraper 3. The scraper 3 is threadedly connected to the adjusting screw 304 through the threaded hole, which plays a role of limit adjustment and can be adjusted up and down.

[0031] Working principle: When the utility model is in use, the power is turned on, and the ink is dripped onto the ink roller 207. The ink roller 207 is driven to rotate by rotating the motor 205 and the rotating shaft 206. The ink roller 207 contacts the offset roller 102 and can apply ink to the offset roller 102. The movable plate 202 can be adjusted left and right by the cylinder 204, and the left and right movement of the movable plate 202 is made more stable by the support rod 203, so that the ink roller 207 can move left and right while rotating, which can be uniform. The offset roller 102 is inked, and the inking mechanism is used more effectively. By manually rotating the adjusting screw 304, the adjusting screw 304 cooperates with the threaded hole at one end of the scraper 3, and the scraper 3 can be adjusted up and down. The up and down adjustment of the scraper 3 is more stable through the limit rod 303, and the contact tightness between the scraper 3 and the offset roller 102 can be adjusted, which is convenient for scraping ink from the offset roller 102, making the scraping mechanism used more effectively, thereby improving the printing quality of the offset printing machine.

[0032] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. An inking and scraping mechanism for an offset printing press, characterized in that: include An offset printing machine housing (1), the offset printing machine housing (1) comprising a paper inlet (101), an offset printing roller (102) and a rotating rod (103), the paper inlet (101) being arranged at a middle position on the top of the offset printing machine housing (1), and the paper inlet (101) penetrating into the interior of the offset printing machine housing (1), the offset printing roller (102) being symmetrically arranged at both ends inside the offset printing machine housing (1), and the rotating rod (103) being arranged at a middle position inside the offset printing roller (102); The ink collecting chamber (2) comprises an ink filling hopper (201), a movable plate (202), a support rod (203), a cylinder (204), a rotating motor (205), a rotating shaft (206) and an ink roller (207); the ink filling hopper (201) is symmetrically arranged at both ends of an offset printing machine housing (1); the movable plate (202) is symmetrically arranged at both ends of one side of the offset printing machine housing (1); the support rod (203) is welded to the offset printing machine housing (1), the cylinder (204) is arranged at one end of the movable plate (202), and the telescopic end of the cylinder (204) is connected to one side of the offset printing machine housing (1), the rotating motor (205) is installed on one side of the movable plate (202), the rotating shaft (206) is arranged at the output end of the rotating motor (205), and the rotating shaft (206) passes through the interior of the ink fountain (201), and the ink roller (207) is arranged on the outside of the rotating shaft (206).

2. The inking and scraping mechanism of an offset printing press according to claim 1, characterized in that: An empty slot is provided inside the ink filling hopper (201), and the ink filling hopper (201) is connected to the ink collecting chamber (2) through the empty slot. Both ends of one side of the offset printing machine housing (1) are provided with a drainage pipe (208), and a valve is installed inside the drainage pipe (208).

3. The inking and scraping mechanism of an offset printing press according to claim 1, characterized in that: A scraper (3) is provided inside the ink collecting bin (2), movable grooves (301) are provided at both ends of the offset printing machine housing (1), and both ends of the scraper (3) extend through the interior of the movable grooves (301), and fixed blocks (302) are welded to both ends of the offset printing machine housing (1), a set of the fixed blocks (302) is provided with a limiting rod (303) extending through one end of the scraper (3), and another set of the fixed blocks (302) is provided with an adjusting screw (304) extending through the other end of the scraper (3).

4. The inking and scraping mechanism of an offset printing press according to claim 1, characterized in that: Both ends of the offset printing machine housing (1) are provided with bearings, and both ends of the rotating rod (103) pass through the inside of the bearings and are rotatably connected to the offset printing machine housing (1).

5. The inking and scraping mechanism of an offset printing press according to claim 1, characterized in that: The offset printing roller (102) is rotatably connected to the offset printing machine housing (1) via a rotating rod (103); movable holes are provided at the four corners inside the movable plate (202), and the support rod (203) penetrates into the movable holes.

6. The inking and scraping mechanism of an offset printing press according to claim 1, characterized in that: The rotating motor (205) is detachably connected to the movable plate (202) via a fixing bolt, and the ink application roller (207) is in contact with the rotating rod (103).

7. The inking and scraping mechanism of an offset printing press according to claim 1, characterized in that: The ink application roller (207) is connected to the rotary motor (205) via a rotating shaft (206), and the cylinder (204) is detachably connected to the movable plate (202) via a fixing bolt.

8. The inking and scraping mechanism of an offset printing press according to claim 3, characterized in that: The scraper (3) is movably connected to the offset printing machine housing (1) via a movable groove (301), and the top of the scraper (3) is an arc-shaped structure.

9. The inking and scraping mechanism of an offset printing press according to claim 3, characterized in that: A limiting hole is provided at one end inside the scraper (3), and the limiting rod (303) passes through the limiting hole.

10. The inking and scraping mechanism of an offset printing press according to claim 3, characterized in that: The other end of the scraper (3) is provided with a threaded hole matching the adjusting screw (304), and the scraper (3) is threadedly connected to the adjusting screw (304) through the threaded hole.

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