Automatic protection device of offset press

Abstract

The utility model relates to the technical field of offset press protection, and discloses an offset press automatic protection device which comprises an offset press, a conveying table and a protection shell, the conveying table is located at the bottom of the offset press and fixedly connected with the bottom of the offset press, and the protection shell is located on the front side of the offset press and fixedly connected with the front side of the offset press. The offset press solves the problems that a large amount of hot air is generated in the simultaneous operation process of a plurality of devices in the offset press, in order to facilitate the use of the offset press, a plurality of heat dissipation holes are usually formed in the surface of the offset press to discharge the hot air, and the surfaces of the heat dissipation holes are not provided with components capable of being protected; in this way, the problem that dust around equipment can penetrate through the heat dissipation holes to enter the offset press is solved, the dust is prone to adhering to the surface of the printing end to be printed to the surface of paper in the printing process of the offset press, the final printing effect is affected, and the printing effect of the offset press is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of offset printing machine protection, in particular to an automatic protection device for an offset printing machine. Background Art

[0002] An offset press is a type of printing equipment, also known as a lithographic printing press. It uses a rubber blanket or rubber plate to transfer ink to a printing plate, and then transfers the image to paper or other printed materials. Offset presses are usually used for large-scale printing production, such as books, magazines, leaflets, etc. It has the characteristics of high speed, high efficiency and high quality, and is a commonly used printing equipment in the printing industry.

[0003] Offset printing presses can be divided into sheet-fed offset printing presses and web offset printing presses according to the different paper feeding methods; they can be divided into single-color, two-color, four-color and multi-color printing presses according to the number of colors printed in one paper feed; they can be divided into small offset printing presses, six-opening, four-opening, folio and full-sheet printing presses according to the maximum paper format of the printing, and there are also double-sided printing presses that can print on both sides at the same time in one paper feed. Sheet-fed offset printing presses are lithographic printing presses used to print high-end commercial printed materials and packaging printed materials. They are the mainstream of modern paper printing. The above technology has the problem that a large amount of heat will be generated during the simultaneous operation of multiple devices inside the offset printing press. In order to facilitate the use of the offset printing press, multiple heat dissipation holes are usually opened on the surface of the offset printing press to discharge the heat. However, there is no protective component on the surface of the heat dissipation holes, so there is a situation where dust around the equipment will pass through the heat dissipation holes and enter the inside of the offset printing press. In addition, it is easy for dust to adhere to the surface of the printing end during the printing process of the offset printing press and be printed on the surface of the paper, affecting the final printing effect, thereby reducing the printing effect of the offset printing press. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides an automatic protection device for an offset printing machine which can overcome the above problems or at least partially solve the above problems.

[0005] The utility model is implemented as follows: an automatic protective device for an offset printing press comprises an offset printing press, a conveying platform and a protective shell, wherein the conveying platform is located at the bottom of the offset printing press and is fixedly connected to the bottom of the offset printing press, and the protective shell is located at the front side of the offset printing press and is fixedly connected to the front side of the offset printing press; the inner cavity of the protective shell is provided with a heat dissipation mechanism used in conjunction with the offset printing press; the inner cavity of the protective shell is provided with a transmission mechanism used in conjunction with the heat dissipation mechanism; and the front side of the inner cavity of the protective shell is provided with a dustproof mechanism used in conjunction with the heat dissipation mechanism.

[0006] In order to improve the heat dissipation effect of the offset printing press, preferably, the heat dissipation mechanism includes a fixed frame, a radiator, a support plate and an arc block, the left and right sides of the support plate are fixedly connected to the inner wall of the fixed frame, the radiator is fixedly installed on the rear side of the support plate, the rear side of the radiator is horizontally aligned with the front side of the offset printing press, the number of the radiators is multiple and evenly distributed on the surface of the support plate, the bottom of the arc block is fixedly connected to the top of the fixed frame, and by setting up the heat dissipation mechanism, multiple radiators are horizontally aligned with the interior of the offset printing press, which can achieve the effect of rapid heat dissipation of multiple devices inside the offset printing press, thereby avoiding the situation where the internal temperature of the offset printing press is high and causes damage to components.

[0007] In order to improve the ease of use of the heat dissipation mechanism, preferably, the transmission mechanism includes a servo motor, a screw rod, a slider and a fixed block. The bottom of the fixed block is fixedly connected to the bottom of the inner cavity of the protective shell, the bottom of the screw rod is movably connected to the top of the fixed block through a rotating shaft, the inner cavity of the slider is slidably connected to the surface of the screw rod through a threaded opening, the output end of the bottom of the servo motor is fixedly installed on the top of the screw rod, the servo motor is located at the top of the protective shell, the front side of the arc block is fixedly connected to the rear side of the slider, and by setting up the transmission mechanism, the servo motor can achieve the effect of quickly driving the heat dissipation mechanism to move up and down through the cooperation of the slider and the screw rod, thereby avoiding the problem that the heat dissipation mechanism is fixed at a specific position and cannot circulate heat to the inside of the offset printing machine.

[0008] In order to improve the dustproof effect of the offset printing machine, preferably, the dustproof mechanism includes a connecting frame, a dustproof plate and four baffles, the four baffles are evenly distributed around the inner cavity of the protective shell and fixedly connected to the inner cavity of the protective shell, the rear side of the connecting frame is fitted with the front sides of the four baffles, the dustproof plate is fixedly installed in the inner cavity of the connecting frame, the surface of the connecting frame is fitted with the inner wall of the protective shell, the front side of the radiator is horizontally aligned with the rear side of the dustproof plate, the inner core of the dustproof plate is made of dustproof cotton, and the dustproof cotton has air permeability and waterproof performance, by setting up the dustproof mechanism, the dustproof plate can achieve the effect of efficient protection of the hot air discharge port of the protective shell through its own inner core, and the dustproof plate has the advantage of facilitating the radiator to quickly discharge the heat inside the offset printing machine through its own air permeability in the process of preventing dust from entering the offset printing machine through the protective shell.

[0009] In order to improve the connection stability between the connecting frame and the protective shell, preferably, the front side of the protective shell is movably connected with a rotating rod on all sides through a damping shaft, and the rear side of the rotating rod is fitted with the front side of the connecting frame. By setting the rotating rod, after the rotating rod is rotated through the damping shaft to fit with the surface of the connecting frame, it can cooperate with the baffle to clamp and limit the connecting frame and the dustproof plate, thereby preventing the connecting frame from shaking or falling off.

[0010] In order to improve the movement stability of the fixed frame, preferably, the left and right sides of the rear side of the fixed frame are fixedly connected with connecting columns, the inner cavity of the connecting columns is movably connected with a support rod, and the side of the support rod close to the inner wall of the protective shell is fixedly connected to the inner wall of the protective shell. By setting the connecting columns and the support rods, the support rods can maintain a certain stability of the fixed frame during movement through the connecting columns, thereby avoiding shaking of the fixed frame during movement.

[0011] In order to improve the installation convenience of the servo motor, preferably, the left and right sides of the servo motor are fixedly connected with a mounting frame, and the bottom of the mounting frame is fixedly connected to the top of the protective shell by bolts. By setting up the mounting frame, the mounting frame can quickly achieve the effect of fixing and supporting the servo motor through the cooperation between the bolts and the protective shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model is provided with an offset printing machine, a conveying table, a protective shell, a heat dissipation mechanism, a transmission mechanism and a dustproof mechanism, and the rotating rod is rotated to make the rotating rod flip to the outside of the protective shell, and then the connecting frame and the protective shell are docked. During the docking process, the rear side of the connecting frame needs to be fitted with the front side of the baffle. After the docking is completed, the rotating rod is flipped again to make the rotating rod flip to the front side of the connecting frame to fit together, so as to achieve the effect of clamping and limiting the connecting frame by mutual cooperation with the baffle. After the connecting frame is installed, the exhaust port of the protective shell can be efficiently protected by the inner core of the dustproof plate, so as to prevent dust from entering the inside of the offset printing machine through the exhaust port. After the dustproof treatment of the offset printing machine is completed, the servo motor is started, and the servo motor can quickly drive the screw rod to rotate through its own output end. During the rotation of the lead screw, the slider is driven to move by the cooperation with the fixed block. During the movement of the slider, the fixed frame is driven to move by the arc block. When the fixed frame moves, the radiator can be started to run. During the operation, the radiator follows the fixed frame to move up and down through the support plate. The radiator is aligned with the internal level of the offset printing machine, so as to achieve the effect of circulating heat dissipation inside the offset printing machine. In the process of heat dissipation of the offset printing machine, the radiator will discharge the hot air inside the offset printing machine through the inner cavity of the connecting frame and the dustproof plate to the outside of the protective shell, so as to achieve the effect of automatic protection of the offset printing machine and avoid the problem of excessive dust accumulation or excessive heat affecting the stable operation of multiple internal devices during the use of the offset printing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0015] Figure 2It is a schematic diagram of the internal connection of the protective shell provided by the embodiment of the utility model;

[0016] Figure 3 It is a connection diagram of the transmission mechanism provided by the embodiment of the utility model;

[0017] Figure 4 It is a connection diagram of the heat dissipation mechanism provided by the embodiment of the utility model;

[0018] Figure 5 It is a connection diagram of the dustproof mechanism provided in the embodiment of the utility model.

[0019] In the figure: 1, offset printing machine; 2, conveyor table; 3, protective shell; 4, heat dissipation mechanism; 5, transmission mechanism; 6, dustproof mechanism; 401, fixed frame; 402, radiator; 403, support plate; 404, arc block; 501, servo motor; 502, lead screw; 503, slider; 504, fixed block; 601, connecting frame; 602, dustproof plate; 603, baffle; 7, rotating rod; 8, connecting column; 9, support rod; 10, mounting frame. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5As shown, an automatic protective device for an offset printing machine provided by an embodiment of the utility model comprises an offset printing machine 1, a conveying platform 2 and a protective shell 3, wherein the conveying platform 2 is located at the bottom of the offset printing machine 1 and is fixedly connected to the bottom of the offset printing machine 1, and the protective shell 3 is located at the front side of the offset printing machine 1 and is fixedly connected to the front side of the offset printing machine 1; the inner cavity of the protective shell 3 is provided with a heat dissipation mechanism 4 used in conjunction with the offset printing machine 1; the inner cavity of the protective shell 3 is provided with a transmission mechanism 5 used in conjunction with the heat dissipation mechanism 4; the front side of the inner cavity of the protective shell 3 is provided with a dustproof mechanism 6 used in conjunction with the heat dissipation mechanism 4, and the heat dissipation mechanism 4 comprises a fixed frame 401, a radiator 402, a support plate 403 and an arc block 404, the left and right sides of the support plate 403 are fixedly connected to the inner wall of the fixed frame 401, and the radiator 402 is fixedly arranged. The heat sink 402 is mounted on the rear side of the support plate 403, and the rear side of the heat sink 402 is horizontally aligned with the front side of the offset printing machine 1. The number of heat sinks 402 is multiple and evenly distributed on the surface of the support plate 403. The bottom of the arc block 404 is fixedly connected to the top of the fixed frame 401. By setting the heat dissipation mechanism 4, multiple heat sinks 402 are horizontally aligned with the inside of the offset printing machine 1, so as to achieve the effect of rapid heat dissipation of multiple devices inside the offset printing machine 1, thereby avoiding the situation where the temperature inside the offset printing machine 1 is high and causes damage to components. The transmission mechanism 5 includes a servo motor 501, a screw rod 502, a slider 503 and a fixed block 504. The bottom of the fixed block 504 is fixedly connected to the bottom of the inner cavity of the protective shell 3, and the bottom of the screw rod 502 is movably connected to the top of the fixed block 504 through a rotating shaft. The servo motor 501 is connected to the protective shell 3 by a dynamic connection, the inner cavity of the slider 503 is slidably connected to the surface of the screw rod 502 through a threaded opening, the output end at the bottom of the servo motor 501 is fixedly installed with the top of the screw rod 502, the servo motor 501 is located at the top of the protective shell 3, the front side of the arc block 404 is fixedly connected to the rear side of the slider 503, and by setting the transmission mechanism 5, the servo motor 501 can achieve the effect of quickly driving the heat dissipation mechanism 4 to move up and down through the cooperation between the slider 503 and the screw rod 502, avoiding the problem that the heat dissipation mechanism 4 is fixed at a certain position and cannot circulate and dissipate heat inside the offset printing machine 1. The dustproof mechanism 6 includes a connecting frame 601, a dustproof plate 602 and four baffles 603, and the four baffles 603 are evenly distributed around the inner cavity of the protective shell 3 and are connected to the protective shell 3. The inner cavity of the protective shell 3 is fixedly connected, the rear side of the connecting frame 601 is fitted with the front sides of the four baffles 603, the dustproof plate 602 is fixedly installed in the inner cavity of the connecting frame 601, the surface of the connecting frame 601 is fitted with the inner wall of the protective shell 3, the front side of the radiator 402 is horizontally aligned with the rear side of the dustproof plate 602, the inner core of the dustproof plate 602 is made of dustproof cotton, and the dustproof cotton has air permeability and waterproof properties. By setting the dustproof mechanism 6, the dustproof plate 602 can achieve the effect of highly efficient protection of the hot air discharge port of the protective shell 3 through its own inner core, and the dustproof plate 602 has the advantage of preventing dust from entering the offset printing machine 1 through the protective shell 3, and the air permeability of the dustproof plate 602 is convenient for the radiator 402 to quickly discharge the heat inside the offset printing machine 1.The front side of the protective shell 3 is movably connected to a rotating rod 7 through a damping shaft. The rear side of the rotating rod 7 is fitted with the front side of the connecting frame 601. By setting the rotating rod 7, after the rotating rod 7 is rotated through the damping shaft to fit with the surface of the connecting frame 601, it can cooperate with the baffle 603 to clamp and limit the connecting frame 601 and the dustproof plate 602, so as to prevent the connecting frame 601 from shaking or falling off. The left and right sides of the rear side of the fixed frame 401 are fixedly connected to connecting columns 8. The inner cavity of the connecting column 8 is movably connected to a support rod 9. The side of the support rod 9 close to the inner wall of the protective shell 3 is connected to the The inner wall of the protective shell 3 is fixedly connected. By setting the connecting column 8 and the support rod 9, the support rod 9 can maintain a certain stability of the fixed frame 401 during the movement through the connecting column 8 to avoid the shaking of the fixed frame 401 during the movement. The left and right sides of the servo motor 501 are fixedly connected with the mounting frame 10. The bottom of the mounting frame 10 is fixedly connected to the top of the protective shell 3 by bolts. By setting the mounting frame 10, the mounting frame 10 can quickly achieve the effect of fixing and supporting the servo motor 501 through the mutual cooperation of the bolts and the protective shell 3.

[0023] The working principle of this utility model:

[0024] When in use, turn the rotating rod 7 to flip the rotating rod 7 to the outside of the protective shell 3, and then dock the connecting frame 601 with the protective shell 3. During the docking process, the rear side of the connecting frame 601 needs to be fitted with the front side of the baffle 603. After the docking is completed, flip the rotating rod 7 again to flip the rotating rod 7 to the front side of the connecting frame 601 to fit it, so as to achieve the effect of clamping and limiting the connecting frame 601 by cooperating with the baffle 603. After the connecting frame 601 is installed, the exhaust port of the protective shell 3 can be effectively protected by the inner core of the dustproof plate 602, so as to prevent dust from entering the inside of the offset printing machine 1 through the exhaust port. After completing the dustproof treatment of the offset printing machine 1, start the servo motor 501. The servo motor 501 will quickly drive the screw rod 502 to rotate through its own output end. During the rotation process, the screw rod 502 is connected to the fixed block 504 The mutual cooperation can achieve the effect of driving the slider 503 to move, and the slider 503 will drive the fixed frame 401 to move through the arc block 404 during the movement. The fixed frame 401 can start the radiator 402 to run when it moves, and the radiator 402 will follow the fixed frame 401 to move up and down through the support plate 403 during the operation, and the radiator 402 is aligned with the internal level of the offset printing machine 1, so as to achieve the effect of circulating heat dissipation inside the offset printing machine 1, and in the process of heat dissipation of the offset printing machine 1, the radiator 402 will make the hot air inside the offset printing machine 1 pass through the inner cavity of the connecting frame 601 and the dustproof plate 602 and be discharged to the outside of the protective shell 3, so as to achieve the effect of automatic protection of the offset printing machine 1, and avoid the problem of excessive dust accumulation or excessive heat in the offset printing machine 1 during use that affects the stable operation of multiple internal devices.

[0025] The specific models and specifications of the radiator 402, servo motor 501 and screw rod 502 proposed in this application need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0026] The circuit connection method and control method of the radiator 402 and the servo motor 501 proposed in this application are both existing technologies in the field, and will not be described in detail.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] The above description is only a preferred embodiment of the utility model, and does not constitute any form of limitation to the utility model. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent will not depart from the scope of the technical solution of the utility model.

Claims

1. An automatic protective device for an offset printing press, comprising an offset printing press (1), a conveying platform (2) and a protective shell (3), characterized in that: The conveying platform (2) is located at the bottom of the offset printing machine (1) and is fixedly connected to the bottom of the offset printing machine (1), and the protective shell (3) is located at the front side of the offset printing machine (1) and is fixedly connected to the front side of the offset printing machine (1); The inner cavity of the protective shell (3) is provided with a heat dissipation mechanism (4) used in conjunction with the offset printing machine (1); The inner cavity of the protective shell (3) is provided with a transmission mechanism (5) used in conjunction with the heat dissipation mechanism (4); A dustproof mechanism (6) used in conjunction with the heat dissipation mechanism (4) is provided on the front side of the inner cavity of the protective shell (3).

2. The automatic protection device for an offset printing press according to claim 1, characterized in that: The heat dissipation mechanism (4) comprises a fixed frame (401), a heat sink (402), a support plate (403) and an arc block (404); the left and right sides of the support plate (403) are fixedly connected to the inner wall of the fixed frame (401); the heat sink (402) is fixedly installed on the rear side of the support plate (403); the rear side of the heat sink (402) is horizontally aligned with the front side of the offset printing machine (1); the number of the heat sinks (402) is multiple and evenly distributed on the surface of the support plate (403); the bottom of the arc block (404) is fixedly connected to the top of the fixed frame (401).

3. The automatic protection device for an offset printing press according to claim 2, characterized in that: The transmission mechanism (5) comprises a servo motor (501), a screw rod (502), a slider (503) and a fixed block (504); the bottom of the fixed block (504) is fixedly connected to the bottom of the inner cavity of the protective shell (3); the bottom of the screw rod (502) is movably connected to the top of the fixed block (504) via a rotating shaft; the inner cavity of the slider (503) is slidably connected to the surface of the screw rod (502) via a threaded opening; the output end at the bottom of the servo motor (501) is fixedly installed to the top of the screw rod (502); the servo motor (501) is located at the top of the protective shell (3); and the front side of the arc block (404) is fixedly connected to the rear side of the slider (503).

4. The automatic protection device for an offset printing press according to claim 2, characterized in that: The dustproof mechanism (6) comprises a connection frame (601), a dustproof plate (602) and four baffles (603); the four baffles (603) are evenly distributed around the inner cavity of the protective shell (3) and are fixedly connected to the inner cavity of the protective shell (3); the rear side of the connection frame (601) is in contact with the front sides of the four baffles (603); the dustproof plate (602) is fixedly installed in the inner cavity of the connection frame (601); the surface of the connection frame (601) is in contact with the inner wall of the protective shell (3); the front side of the radiator (402) is horizontally aligned with the rear side of the dustproof plate (602); the inner core of the dustproof plate (602) is made of dustproof cotton, and the dustproof cotton has air permeability and waterproof properties.

5. The automatic protection device for an offset printing press as claimed in claim 4, characterized in that: The front side of the protective shell (3) is movably connected to a rotating rod (7) via a damping rotating shaft, and the rear side of the rotating rod (7) is in contact with the front side of the connecting frame (601).

6. The automatic protection device for an offset printing press according to claim 2, characterized in that: The left and right sides of the rear side of the fixed frame (401) are fixedly connected to connecting columns (8), the inner cavity of the connecting columns (8) is movably connected to a support rod (9), and the side of the support rod (9) close to the inner wall of the protective shell (3) is fixedly connected to the inner wall of the protective shell (3).

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