Offset printing blowing device

Abstract

The utility model discloses an offset printing air blowing device, which is applied to an offset press and is characterized by comprising an air blowing pipe, wallboards, mounting seats, a fan, air connecting ports, a frequency converter and a controller, two ends of the air blowing pipe are fixed on the upper portions of the first wallboard and the second wallboard through the mounting seats, more than one air connecting port is arranged below the air blowing pipe, and the frequency converter is arranged below the air blowing pipe. The air connecting opening is connected with the fan through an air pipe, the fan is arranged at the end, away from the air blowing pipe, of the first wall plate or the second wall plate, the frequency converter is electrically connected with the fan, and the controller is electrically connected with the fan and the frequency converter. The offset printing blowing device is simple in structure and easy to manufacture, the problems that printed patterns are not clear enough and edge contours cannot meet requirements can be solved, meanwhile, the production cost of enterprises is reduced, and the problem that the blowing device cannot blow and operate due to the fact that the blowing device is blocked by printing ink is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of offset printing machine structures, in particular to an offset printing air blowing device. Background Art

[0002] The core of offset printing is to use the principle of water-oil incompatibility. The printing plate is divided into the image area and the blank area. The blank area is first coated with fountain solution, and the ink cannot be inked in the blank area, but can only be inked in the image area to print the pattern. This is theoretically true, but in actual operation, there is often a problem of ink being emulsified by the fountain solution, resulting in the printed pattern, clarity and edge contour not meeting the requirements, especially after the machine has been used for a period of time, this phenomenon is more serious. In order to solve this problem, offset printing manufacturers have equipped fans for blowing fountain solution water. Each area is equipped with a small fan, resulting in a large number of fans. At present, offset printing generally uses UV ink, which is relatively viscous and often blocks the fan and cannot be used normally, resulting in frequent replacement. The cost of each replacement is very high, and it also affects normal use, resulting in high production costs for enterprises. Utility Model Content

[0003] In view of this, the present invention proposes an offset printing air blowing device, which aims to solve at least one of the problems existing in the above-mentioned prior art.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An offset printing air blowing device, used in an offset printing machine, is characterized in that it includes: an air blowing pipe, a wall panel, a mounting base, a fan, an air inlet, a frequency converter, and a controller. The two ends of the air blowing pipe are fixed to the upper parts of the first and second wall panels through the mounting base. More than one air inlet is provided below the air blowing pipe. The air inlet is connected to the fan through an air duct. The fan is provided at one end of the first or second wall panel away from the air blowing pipe. The frequency converter is electrically connected to the fan, and the controller is electrically connected to the fan and the frequency converter.

[0006] In some embodiments of the present application, a plurality of blowing holes are axially arranged on the blowing pipe, so as to blow the air from the fan toward the printed matter.

[0007] In some embodiments of the present application, the offset blowing device further includes a balance box, which is arranged between the air inlet and the fan, and the balance box, the air inlet, and the fan are connected through the air duct.

[0008] In some embodiments of the present application, the mounting seat is cylindrical, and a first accommodating cavity is provided inside. The diameter of the first accommodating cavity is greater than or equal to the diameter of the cross section of the blowing tube.

[0009] In some embodiments of the present application, the mounting seat includes a movable seat and a fixed seat, the movable seat is arranged above the fixed seat, and the movable seat, the fixed seat, and the air blowing tube are fixed by screws.

[0010] In some embodiments of the present application, the offset printing blowing device further includes a damper adjustment device, which is cylindrical and disposed outside the blowing pipe.

[0011] In some embodiments of the present application, the damper adjustment device is provided with a second accommodating cavity, and the diameter of the second accommodating cavity is larger than the diameter of the cross section of the blowing pipe.

[0012] In some embodiments of the present application, the damper adjustment device is provided with a notch, and the diameter of the notch is smaller than the diameter of the cross section of the blowing pipe.

[0013] In some embodiments of the present application, a damper adjustment handle is further provided on the upper portion of the damper adjustment device away from the blowing pipe for adjusting the size of the blowing.

[0014] The beneficial effects achieved by the utility model are as follows: by setting up a group of offset printing blowing devices, the problems caused by the use of blowing fans are solved, the fans are eliminated, and a blowing pipe method with a simple structure is adopted, which solves the problems that the blowing fans need to be replaced frequently and the fans are blocked so that they cannot operate. This group of offset printing blowing devices has a simple structure and is easy to manufacture, which can solve the problems that the printed patterns are not clear enough and the edge contours do not meet the requirements, while reducing the production costs of the enterprise, and will not cause the problem that the ink blocks the blowing device so that it cannot blow and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of the offset printing air blowing device of the utility model.

[0016] Figure 2 This is a schematic diagram showing the blowing holes of the blowing tube of the present invention.

[0017] Figure 3 The utility model is a cross-sectional schematic diagram showing the wind force regulating device of the offset printing blowing device.

[0018] Figure 4 It is a cross-sectional schematic diagram of a mounting base including an air blowing pipe in an offset printing air blowing device of the present invention.

[0019] Reference numerals in the figure: air blowing pipe 1; air blowing hole 11; wall panel 2; first wall panel 21; second wall panel 22, mounting base 3; fan 4; air inlet 5; inverter 6; controller 7; air duct 8; balance box 9; first accommodating chamber 31; movable base 32; fixed base 33; screw 34; damper adjustment device 10; second accommodating chamber 101; notch 102; damper adjustment handle 103. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0023] Please refer to Figure 1-Figure 4 , an offset printing air blowing device, used in an offset printing machine, includes: an air blowing pipe 1, a wall panel 2, a mounting base 3, a fan 4, an air inlet 5, a frequency converter 6, and a controller 7. The two ends of the air blowing pipe 1 are fixed to the upper part of the first wall panel 21 and the second wall panel 22 through the mounting base 3. More than one air inlet 5 is provided below the air blowing pipe 1. The air inlet 5 is connected to the fan 4 through an air duct 8. The fan 4 is provided at one end of the first wall panel 21 or the second wall panel 22 away from the air blowing pipe 1. The frequency converter 6 is electrically connected to the fan 4, and the controller 7 is electrically connected to the fan 4 and the frequency converter 6.

[0024] Specifically, the blowing pipe 1 can also be fixed to the middle and lower part of the wall panel 2 through the mounting bracket 3. The position is not strictly limited, but the connections at both ends of the blowing pipe 1 need to be in a horizontal position. Fixing it through the mounting bracket 3 also makes it convenient to clean the blowing pipe 1 and to disassemble it. The air inlet 5 is arranged below the blowing pipe 1. There can be more than one, preferably three. The wind in the fan 4 is transmitted to the blowing pipe 1 through the air duct 8. The fan 4 is arranged on the wall panel 2. When an offset blowing device is needed for blowing, the personnel uses the controller 7 to make the fan 4 generate wind. The controller 7 can adjust the wind force. Preferably, it is a central control system. Then the wind enters the air inlet 5 along the air duct, and then the air inlet 5 transmits the wind to the blowing pipe 1. Then the blowing pipe 1 blows the wind to the printed material to solve the problem that the ink is emulsified by the fountain solution, resulting in the clarity and edge contour of the printed pattern not meeting the requirements, and at the same time solves the problem that traditional fans are easily blocked and sticky and cannot be used.

[0025] In some embodiments of the present application, a plurality of blowing holes 11 are axially arranged on the blowing pipe 1 for blowing the air from the fan 4 toward the printed matter.

[0026] Specifically, the number of the blowing holes 11 is not set, but 5-6 or more is more appropriate. The hole size and hole shape are not restricted. The blowing holes 11 are evenly distributed on the blowing tube 1, rather than being set at only one end of the blowing tube 1. Secondly, the blowing holes 11 are only set on the side facing the printed matter, and the opposite side is not set. Providing a plurality of blowing holes 11 can make the wind blow evenly on the printed matter, rather than blowing on a part of it.

[0027] In some embodiments of the present application, the offset blowing device further includes a balance box 9 , which is arranged between the air inlet 5 and the fan 4 , and the balance box 9 , the air inlet 5 , and the fan 4 are connected via the air duct 8 .

[0028] Specifically, the setting of the balance box 9 can ensure the performance and stable operation of the fan 4, and prevent the fan 4 from being damaged due to vibration and noise exceeding the limit. The setting of the inverter 7 can change the wind speed of the fan 4 and find the most energy-saving and cost-effective way to operate.

[0029] In some embodiments of the present application, the mounting seat 3 is cylindrical, and a first accommodating cavity 31 is provided inside. The diameter of the first accommodating cavity 31 is greater than or equal to the diameter of the cross section of the blowing tube 1 .

[0030] Specifically, only when the cross-sectional diameter of the first accommodating cavity 31 is greater than or equal to the cross-sectional diameter of the blowing tube 1, the blowing tube 1 can be embedded in the mounting seat 3. Otherwise, it cannot be embedded, and the connection between the mounting seat 3 and the blowing tube 1 will be unstable and easy to fall over.

[0031] In some embodiments of the present application, the mounting seat 3 includes a movable seat 32 and a fixed seat 33 , the movable seat 32 is arranged above the fixed seat 33 , and the movable seat 32 , the fixed seat 33 , and the blowing tube 1 are fixed by screws 34 .

[0032] Specifically, the movable seat 32 and the fixed seat 33 are both hollow structures. The two hollow parts together form the first accommodating cavity 31. The internal cross-section of the first accommodating cavity is also circular. In this way, the movable seat 32, the fixed seat 33, and the blowing tube 1 are fixed together from the middle by screws 34, so that the structure of the connection between the mounting seat 3 and the blowing tube 1 can be more stable.

[0033] In some embodiments of the present application, the offset printing blowing device further includes an air door regulating device 10 , which is cylindrical and disposed outside the blowing pipe 1 .

[0034] Specifically, the overall shape of the air door adjustment device 10 is compatible with the air blowing pipe 1, which can save materials.

[0035] In some embodiments of the present application, the damper adjustment device 10 is provided with a second accommodating cavity 101 , and the diameter of the second accommodating cavity 101 is larger than the diameter of the cross section of the blowing pipe 1 .

[0036] Specifically, the second accommodating cavity 101 of the damper adjusting device 10 needs to be larger than the diameter of the cross section of the blowing pipe 1 so that the damper adjusting device 10 can be installed outside the blowing pipe 1, and the entire damper adjusting device 10 has a certain elasticity so that the wind force adjusting device 10 and the blowing pipe 1 can be more adapted.

[0037] In some embodiments of the present application, the damper adjustment device 10 is provided with a notch 102, the diameter of which is smaller than the diameter of the cross section of the blowing pipe 1. This can prevent the wind force adjustment device 10 from falling off and make the structure more stable.

[0038] In some embodiments of the present application, a damper adjustment handle 103 is further provided on the upper portion of the damper adjustment device 10 away from the blowing tube 1 for adjusting the size of the blowing.

[0039] The utility model solves the problems caused by the use of a blowing fan by arranging a group of offset printing blowing devices, eliminates the fan, adopts a blowing pipe method with a simple structure, solves the problems that the blowing fan needs to be replaced frequently and the fan is blocked and cannot be operated. This group of offset printing blowing devices has a simple structure and is easy to manufacture, can solve the problems that the printed pattern is not clear enough and the edge contour does not meet the requirements, and at the same time reduces the production cost of the enterprise, and will not cause the problem that the ink blocks the blowing device and makes it unable to blow.

[0040] Throughout this specification, reference to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An offset printing air blowing device, used in an offset printing machine, characterized in that: The invention comprises: an air blowing pipe (1), a wall panel (2), a mounting base (3), a fan (4), an air receiving port (5), a frequency converter (6), and a controller (7). The two ends of the air blowing pipe (1) are fixed to the upper part of the first wall panel (21) and the second wall panel (22) through the mounting base (3). More than one air receiving port (5) is provided below the air blowing pipe (1). The air receiving port (5) is connected to the fan (4) through an air duct (8). The fan is provided at one end of the first (21) or second wall panel (22) away from the air blowing pipe (1). The frequency converter (6) is electrically connected to the fan (4), and the controller (7) is electrically connected to the fan (4) and the frequency converter (6).

2. The offset blowing device according to claim 1, characterized in that: The air blowing pipe is axially provided with a plurality of air blowing holes (11) for blowing the air from the fan (4) toward the printed matter.

3. The offset blowing device according to claim 1, characterized in that: The offset printing air blowing device further comprises a balance box (9), which is arranged between the air inlet (5) and the fan (4), and the balance box (9), the air inlet (5) and the fan (4) are connected via the air duct (8).

4. The offset blowing device according to claim 1, characterized in that: The mounting seat (3) is cylindrical and is provided with a first accommodating cavity (31) therein. The diameter of the first accommodating cavity (31) is greater than or equal to the diameter of the cross section of the blowing pipe (1).

5. The offset blowing device according to claim 4, characterized in that: The mounting seat (3) comprises a movable seat (32) and a fixed seat (33); the movable seat (32) is arranged above the fixed seat (33); and the movable seat (32), the fixed seat (33) and the air blowing pipe (1) are fixed by screws (34).

6. The offset blowing device according to claim 1, characterized in that: The offset printing air blowing device further comprises an air door regulating device (10), which is cylindrical and arranged outside the air blowing pipe (1).

7. The offset blowing device according to claim 6, characterized in that: The damper adjustment device (10) is provided with a second accommodating cavity (101), and the diameter of the second accommodating cavity (101) is larger than the diameter of the cross section of the blowing pipe (1).

8. The offset blowing device according to claim 7, characterized in that: The air door adjustment device (10) is provided with a notch (102), and the diameter of the notch (102) is smaller than the diameter of the cross section of the air blowing pipe (1).

9. The offset blowing device according to claim 6, characterized in that: The upper portion of the air damper adjustment device (10) in a direction away from the air blowing pipe (1) is also provided with an air damper adjustment handle (103) for adjusting the size of the air blowing.

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