CN211054667U - Accurate positioner that offset press was used - Google Patents

Abstract

The utility model relates to the technical field of offset printing machines, and discloses a precise positioning device for an offset printing machine. The inside of the fixing box is fixedly connected with a screw, the left and right sides of the outer surface of the screw are threadedly connected with a slider, and the bottom of the slider is fixedly connected with a connecting rod whose one end penetrates and extends to the outside of the fixing box. The bottom of the rod penetrates and extends to the inside of the sliding sleeve and is slidably connected with the sliding sleeve, the bottom of the connecting rod is fixedly connected with a mounting plate, and the bottom of the mounting plate is fixedly connected with a flexible spring. The precise positioning device used in the offset printing press moves the two rollers left and right, and makes the rollers contact the paper flexibly, so as to facilitate the positioning of different sizes of paper, effectively protect the paper, and the positioning is accurate, easy to use, suitable for in various situations.

Description

A precise positioning device for an offset printing machine

technical field

The utility model relates to the technical field of offset printing machines, in particular to a precise positioning device for an offset printing machine.

Background technique

Offset printing press is a type of lithographic printing press. During printing, the printed graphics are first printed from the printing plate to the blanket cylinder, and then transferred from the blanket cylinder to the paper. Offset printing presses can be divided into single sheets according to different feeding methods. Offset presses and web-fed offset presses can be divided into single-color, two-color, four-color and multi-color presses according to the number of printing colors completed in one pass, and can be divided into small offset presses, six-open, Quad, folio, and full-fed presses, plus a perfecting press that can print on both sides in one pass.

Sheetfed offset presses are lithographic presses used to print high-grade commercial prints and packaging prints. They are the mainstream of modern paper printing. At present, the existing precise positioning devices for offset presses on the market are inconvenient for different sizes of paper. The disadvantage of positioning is that during use, due to the different sizes of the paper, the positioning device needs to be adjusted to position the paper, and the general positioning device does not have a certain degree of flexibility, and it is easy to damage the paper during the positioning process, which is inconvenient to use. Therefore, the above-mentioned precise positioning device for an offset printing machine is proposed to solve the above problems.

Utility model content

(1) Technical problems solved

In view of the deficiencies of the prior art, the utility model provides a precise positioning device for an offset printing machine, which has the advantages of being convenient for positioning paper of different sizes, and solves the problem that the positioning device needs to be adjusted due to the different sizes of the paper during use. In order to position the paper, and the general positioning device does not have a certain flexibility, it is easy to damage the paper during the positioning process, which is inconvenient to use.

(2) Technical solutions

In order to achieve the above purpose of facilitating the positioning of paper of different sizes, the present invention provides the following technical solution: a precise positioning device for an offset printing machine, comprising a fixed box, the right side of the fixed box is fixedly connected with a servo motor, so The output shaft of the servo motor penetrates and extends to the interior of the fixed box and is fixedly connected with a screw. The left and right sides of the outer surface of the screw are screwed with a slider, and the bottom of the slider is fixedly connected with one end that penetrates and extends to the A connecting rod outside the fixed box, the bottom of the connecting rod penetrates and extends to the inside of the sliding sleeve and is slidably connected with the sliding sleeve, the bottom of the connecting rod is fixedly connected with a mounting plate, and the bottom of the mounting plate is fixedly connected with a flexible A spring, the bottom of the sliding sleeve is fixedly connected with the roll-off, the top of the fixed box is fixedly connected with a fan, the front of the fan is connected with a connecting pipe, and the bottom of the connecting pipe penetrates and extends to the interior of the fixed air pipe And it is movably connected with the fixed air duct. The left and right ends of the inner cavity of the fixed box are both slidably connected with a movable air duct whose one end penetrates and extends to the outside of the fixed air duct, and the left and right ends of the top of the fixed air duct are fixedly connected. A telescopic rod, the top of the telescopic rod is fixedly connected with the bottom of the fixed box, the opposite sides of the two movable air pipes are fixedly connected with the opposite sides of the two sliding sleeves, and the left and right sides of the bottom of the fixed box are fixedly connected. A hydraulic cylinder is threaded on each side, a support rod is fixedly connected to the bottom of the hydraulic cylinder, a paper guide roller is movably connected between the opposite sides of the two support rods, and a bottom plate is fixedly connected to the bottom of the support rod .

Preferably, the left and right ends of the outer surface of the screw rod are fixedly connected with threads in opposite directions, and the inside of the slider is provided with a thread groove adapted to the screw threads on the outer surface of the screw rod.

Preferably, the left and right sides of the bottom of the fixed box are provided with sliding holes, and the sliding holes are adapted to the connecting rods.

Preferably, the top of the sliding sleeve is provided with a connecting hole adapted to the connecting rod, and the diameter of the connecting hole is smaller than the size of the mounting plate.

Preferably, the bottoms of the moving air duct and the fixed air duct are provided with a plurality of air outlets, and the air outlets and the paper guide roller are on the same vertical line.

Preferably, sealing rubber rings are fixedly connected on the left and right sides of the fixed air duct and on the outer surface of the moving air duct and on the top of the fixed air duct and on the outer surface of the connecting pipe.

(3) Beneficial effects

Compared with the prior art, the utility model provides a precise positioning device for an offset printing machine, which has the following beneficial effects:

1. The precise positioning device used in the offset printing machine guides the paper from the paper guide roller through the paper. According to the size of the paper, the output shaft of the servo motor is controlled by an external controller to rotate forward and reverse, and the screw is driven to rotate forward and reverse. The left and right ends of the outer surface are fixedly connected with threads in opposite directions, and the inside of the slider is provided with a thread groove that matches the thread on the outer surface of the screw. The two sliders with connecting rods, sliding sleeves and rollers move in opposite or opposite directions. When the movement is completed, the hydraulic cylinder moves down, so that the rollers contact the paper and accurately position the paper. The flexible springs, sliding sleeves and The setting of the connecting rod makes the roller have a certain flexibility to avoid damage to the paper during the positioning process. The device moves the two rollers left and right, and makes the roller touch the paper flexibly, so as to facilitate the positioning of different sizes of paper, effectively It protects the paper, and the positioning is accurate, easy to use, and suitable for various situations.

2. The precise positioning device used in the offset printing machine, through the movement of the slider during the positioning process, drives the moving air duct to move inside the fixed air duct. At the same time, the telescopic rod is flexible, and the fixed air duct can also be connected on the outer surface of the connecting pipe. Move up and down, turn on the fan, the fan guides the air from the connecting pipe to the interior of the moving air duct and the fixed air duct, and discharges it from multiple air outlets to clean the dust on the paper. It can also be cleaned while positioning and adjusting, so as to prevent dust from entering the inside of the offset printing machine, which is easy for users to use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the appearance drawing of the utility model;

Figure 3 is the right side view of the connection between the fixed box and the servo motor of the present invention.

In the picture: 1 fixed box, 2 servo motor, 3 screw rod, 4 slider, 5 connecting rod, 6 sliding sleeve, 7 flexible spring, 8 mounting plate, 9 roller, 10 fan, 11 connecting pipe, 12 fixed air duct, 13 Telescopic rod, 14 moving air duct, 15 hydraulic cylinder, 16 support rod, 17 paper guide roller, 18 bottom plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figure 1-3, a precise positioning device for an offset printing machine, including a fixed box 1, a servo motor 2 is fixedly connected to the right side of the fixed box 1, the model of the servo motor 2 can be ECMA-C20604RS, the servo motor 2 The output shaft penetrates and extends into the interior of the fixed box 1 and is fixedly connected with a screw rod 3 , the left and right sides of the outer surface of the screw rod 3 are threadedly connected with a slider 4 , and the left and right ends of the outer surface of the screw rod 3 are fixedly connected with threads in opposite directions , the inside of the slider 4 is provided with a thread groove that matches the thread on the outer surface of the screw 3, and the bottom of the slider 4 is fixedly connected with a connecting rod 5 whose one end penetrates and extends to the outside of the fixed box 1. Both sides are provided with sliding holes, the sliding holes are adapted to the connecting rod 5, the bottom of the connecting rod 5 penetrates and extends to the inside of the sliding sleeve 6 and is slidably connected with the sliding sleeve 6, and the bottom of the connecting rod 5 is fixedly connected with a mounting plate 8 , the top of the sliding sleeve 6 is provided with a connecting hole that matches the connecting rod 5, and the diameter of the connecting hole is smaller than the size of the mounting plate 8, so as to prevent the flexible spring 7 from detaching from the sliding sleeve 6, and the bottom of the mounting plate 8 is fixedly connected with The flexible spring 7, the bottom of the sliding sleeve 6 is fixedly connected with a roll down 9, the top of the fixed box 1 is fixedly connected with a fan 10, the model of the fan 10 can be DFA150, the servo motor 2 and the fan 10 are both connected with an external controller signal, and Both the servo motor 2 and the fan 10 are electrically connected to the external power supply. The front of the fan 10 is connected with a connecting pipe 11. The bottom of the connecting pipe 11 penetrates and extends to the interior of the fixed air duct 12 and is movably connected to the fixed air duct 12. The fixed box 1. Both the left and right ends of the inner cavity are slidably connected with a movable air duct 14, one end of which runs through and extends to the outside of the fixed air duct 12. The left and right sides of the fixed air duct 12 are located between the outer surface of the movable air duct 14 and the fixed air duct 12. The top and the outer surface of the connecting pipe 11 are fixedly connected with a sealing rubber ring, which ensures the tightness when the fixed air duct 12 is connected with the moving air duct 14 and the connecting pipe 11. The left and right ends of the top of the fixed air duct 12 are fixedly connected. There is a telescopic rod 13. The telescopic rod 13 is composed of a sliding rod and a sleeve rod. The top of the sliding rod penetrates and extends to the outside of the sleeve rod and is slidably connected with the sleeve rod. The top of the telescopic rod 13 is fixedly connected with the bottom of the fixed box 1. The opposite sides of the movable air ducts 14 are respectively fixedly connected to the opposite sides of the two sliding sleeves 6 , and the left and right sides of the bottom of the fixed box 1 are threadedly connected with hydraulic cylinders 15 , and the model of the hydraulic cylinders 15 can be MOB-63 , a support rod 16 is fixedly connected to the bottom of the hydraulic cylinder 15, a paper guide roller 17 is movably connected between the opposite sides of the two support rods 16, and the bottoms of the moving air duct 14 and the fixed air duct 12 are provided with a large number of There are two air outlets, and the air outlets and the paper guide roller shaft 17 are on the same vertical line. The bottom of the support rod 16 is fixedly connected with the bottom plate 18, and the paper is guided from the paper guide roller shaft 17. According to the size of the paper, through the outside The controller controls the output shaft of the servo motor 2 to rotate forward and reverse, and drives the screw 3 to rotate forward and reverse, and the left and right ends of the outer surface of the screw 3 are fixedly connected with threads in opposite directions. Thread grooves adapted to the surface threads, The sliding hole and the connecting rod 5 restrict the slider 4 to follow the screw 3 to make circular motion, and make the two sliders 4 move in the opposite or opposite directions with the connecting rod 5, the sliding sleeve 6 and the roller 9. The hydraulic cylinder 15 moves downward, so that the roller 9 contacts the paper and precisely positions the paper. The flexible spring 7, the sliding sleeve 6 and the connecting rod 5 are arranged so that the roller 9 has a certain flexibility to avoid damage to the paper during the positioning process. , the device moves the two rollers 9 left and right, and makes the rollers 9 flexibly contact the paper, so as to facilitate the positioning of different sizes of paper, effectively protect the paper, and the positioning is accurate, easy to use, suitable for various situations. , During the positioning process, the slider 4 moves to drive the moving air duct 14 to move inside the fixed air duct 12, while the telescopic rod 13 is flexible, and the fixed air duct 12 can also move up and down on the outer surface of the connecting pipe 11 to open The fan 10, the fan 10 guides the air from the connecting pipe 11 to the interior of the moving air duct 14 and the fixed air duct 12, and discharges it from multiple air outlets to clean the dust on the paper. Move the air duct 14 and the fixed air duct 12, and blow the paper, so as to achieve the purpose of cleaning dust. It can also be cleaned while the positioning is adjusted to prevent dust from entering the offset press, which is easy for users to use.

To sum up, the precise positioning device used in the offset printing machine is guided through the paper guide roller 17 through the paper, and according to the size of the paper, the output shaft of the servo motor 2 is controlled by an external controller to rotate forward and reverse, and drives the screw 3 Forward and reverse rotation, and the left and right ends of the outer surface of the screw rod 3 are fixedly connected with threads in opposite directions. The slider 4 follows the screw 3 to make a circular motion, and makes the two sliders 4 with the connecting rod 5, the sliding sleeve 6 and the roller 9 move in opposite or opposite directions. After the movement is completed, the hydraulic cylinder 15 moves downward, so that the The roller 9 contacts the paper and precisely positions the paper. The flexible spring 7, the sliding sleeve 6 and the connecting rod 5 are arranged so that the roller 9 has a certain flexibility to avoid damage to the paper during the positioning process. Roller 9, and make the roller 9 contact the paper flexibly, so as to achieve the purpose of facilitating the positioning of different sizes of paper, effectively protect the paper, and the positioning is accurate, easy to use, suitable for various situations, by in the process of positioning, The movement of the slider 4 drives the moving air duct 14 to move inside the fixed air duct 12, and the telescopic rod 13 is flexible. The connecting pipe 11 is introduced into the interior of the moving air duct 14 and the fixed air duct 12, and is discharged from multiple air outlets to clean the dust on the paper. The device guides the wind to the moving air duct 14 and the fixed air duct through the fan 10 12, and blow the paper to clean up the dust. It can also be cleaned while the positioning is adjusted to prevent the dust from entering the inside of the offset printing machine, which is easy for users to use, and solves the problem of different sizes of paper. , the positioning device needs to be adjusted to position the paper, and the general positioning device does not have a certain flexibility, and it is easy to damage the paper during the positioning process, which is inconvenient to use.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an accurate positioner that offset press was used, includes fixed case (1), its characterized in that: the right side of the fixed box (1) is fixedly connected with a servo motor (2), an output shaft of the servo motor (2) penetrates through and extends to the inside of the fixed box (1) and is fixedly connected with a screw rod (3), the left side and the right side of the outer surface of the screw rod (3) are both in threaded connection with a sliding block (4), one end of the bottom of the sliding block (4) is fixedly connected with a connecting rod (5) penetrating through and extending to the outside of the fixed box (1), the bottom of the connecting rod (5) penetrates through and extends to the inside of a sliding sleeve (6) and is slidably connected with the sliding sleeve (6), the bottom of the connecting rod (5) is fixedly connected with a mounting plate (8), the bottom of the mounting plate (8) is fixedly connected with a flexible spring (7), the bottom of the sliding sleeve (6) is fixedly connected with a roll-off device (9), the top of the fixed box (1) is fixedly, the bottom of the connecting pipe (11) penetrates through and extends to the inside of the fixed air pipe (12) and is movably connected with the fixed air pipe (12), the left and right ends of the inner cavity of the fixed box (1) are respectively and slidably connected with a movable air pipe (14) of which one end penetrates through and extends to the outside of the fixed air pipe (12), the left and right ends of the top of the fixed air pipe (12) are respectively and fixedly connected with a telescopic rod (13), the top of the telescopic rod (13) is fixedly connected with the bottom of the fixed box (1), one side of each of the two movable air pipes (14) which are opposite to each other is respectively and fixedly connected with one side of each of the two sliding sleeves (6), the left and right sides of the bottom of the fixed box (1) are respectively and threadedly connected with a hydraulic cylinder (15), the bottom of each hydraulic cylinder (15) is fixedly connected with a supporting rod (, the bottom of the supporting rod (16) is fixedly connected with a bottom plate (18).

2. The accurate positioning device for offset printing machines according to claim 1, wherein: the screw rod (3) surface about both ends equal fixedly connected with direction opposite screw thread, the thread groove with screw rod (3) surface screw thread looks adaptation is seted up to the inside of slider (4).

3. The accurate positioning device for offset printing machines according to claim 1, wherein: the left side and the right side of the bottom of the fixed box (1) are both provided with sliding holes, and the sliding holes are matched with the connecting rods (5).

4. The accurate positioning device for offset printing machines according to claim 1, wherein: the top of the sliding sleeve (6) is provided with a connecting hole matched with the connecting rod (5), and the aperture of the connecting hole is smaller than the size of the mounting plate (8).

5. The accurate positioning device for offset printing machines according to claim 1, wherein: the bottom of the movable air pipe (14) and the bottom of the fixed air pipe (12) are both provided with a plurality of air outlets, and the air outlets and the paper guide roller shafts (17) are positioned on the same vertical line.

6. The accurate positioning device for offset printing machines according to claim 1, wherein: the left side and the right side of the fixed air pipe (12) are respectively positioned on the outer surface of the movable air pipe (14) and the top of the fixed air pipe (12) and are respectively fixedly connected with a sealing rubber ring on the outer surface of the connecting pipe (11).

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