Paper pressing and dust preventing mechanism for printing machine

Abstract

The utility model relates to the technical field of printing of printing machines, and discloses a paper pressing and dust preventing mechanism for a printing machine, which comprises two fixing supports which are symmetrically distributed left and right, and a connecting frame is arranged between the two fixing supports. An adjusting assembly with one end extending to the bottom of the connecting frame is arranged between the left side and the right side of the inner wall of the connecting frame, and sleeves are arranged on the left side and the right side of the bottom of the adjusting assembly. According to the paper pressing and dust preventing mechanism for the printing machine, the adjusting assembly is arranged, the two fixing supports are installed on the printing machine, a pressing plate extrudes the top of paper, a stepping motor is started to drive a second bevel gear to rotate through an output shaft, and the second bevel gear and a first bevel gear are used in cooperation; and the threaded rod rotates to drive the two threaded plates and the two pressing plates to move oppositely or oppositely so as to adapt to paper of different sizes, the paper pressing mechanism does not need to be replaced, the practicability of the device is improved, and a worker can use the device conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of printing presses, in particular to a paper pressing and dust prevention mechanism for a printing press. Background Art

[0002] After printing is completed, the sheet-fed offset printing machine collects the printed paper onto the paper pile table through the paper collection mechanism. This requires that the paper cannot touch any object during the transfer process, otherwise the paper will be stained and scratched, causing the printed product to be scrapped. Especially when the machine is printing at high speed, a large amount of waste will be generated.

[0003] At present, the conventional paper pressing mechanism of a printing press can only press paper of a single size. When it is necessary to press paper of different sizes, the paper pressing mechanism needs to be replaced, which limits the use of the device. At the same time, the conventional paper pressing mechanism of a printing press cannot handle the dust sprayed when the paper is dried, which affects the working environment. Therefore, a paper pressing and dust prevention mechanism for a printing press is proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a paper pressing and dust prevention mechanism for a printing press, which has the advantages of being able to press papers of different sizes and handle the sprayed dust, etc., and solves the problem that the current traditional paper pressing mechanism for a printing press can only press papers of a single size. When papers of different sizes need to be pressed, the paper pressing mechanism needs to be replaced, which limits the use of the device. At the same time, the traditional paper pressing mechanism for a printing press cannot handle the dust sprayed when the paper is dried, affecting the working environment.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of being able to squeeze papers of different sizes and handle the sprayed dust, the utility model provides the following technical solutions: a paper pressing and dust prevention mechanism for a printing press, comprising a fixed bracket, the number of the fixed brackets is two and they are symmetrically distributed, a connecting frame is arranged between the two fixed brackets, an adjusting component with one end extending to the bottom thereof is arranged between the left and right sides of the inner wall of the connecting frame, sleeves are arranged on the left and right sides of the bottom of the adjusting component, sliding plates are arranged on the inner walls of the two sleeves, a compression spring is arranged between the top of the sliding plate and the inner top wall of the sleeve, a pressing plate with one end extending to the bottom of the sleeve is arranged at the bottom of the sliding plate, and a dust suction component fixedly connected to the outside of the two fixed brackets is arranged at the top of the connecting frame;

[0008] The adjusting assembly includes a threaded rod, a threaded rod is arranged between the left and right sides of the inner wall of the connecting frame, a first bevel gear is arranged on the outside of the threaded rod, two threaded plates are arranged on the outside of the threaded rod and are respectively located on the left and right sides of the first bevel gear, the threaded plate is connected to the inner wall of the connecting frame, the bottoms of the two threaded plates extend to the bottom of the connecting frame, the tops of the two sleeves are respectively connected to the bottoms of the two threaded plates, a stepping motor is arranged on the inner bottom wall of the connecting frame, and a second bevel gear meshing with the outside of the first bevel gear is arranged at the output shaft of the stepping motor;

[0009] The dust suction assembly includes a dust suction frame, a dust suction frame is arranged on the top of the connecting frame, a filter frame is arranged on the inner top wall of the dust suction frame, an exhaust fan is arranged on the top of the dust suction frame, the air inlet end of the exhaust fan extends to the interior of the filter frame, the air outlet end of the exhaust fan is located outside the dust suction frame, dust suction plates are arranged on the outside of the two fixed brackets, and a delivery hose with one end respectively connected to the inner walls of the two dust suction plates is arranged on the left and right sides of the inner wall of the dust suction frame.

[0010] Preferably, the outside of the threaded rod is provided with two sections of threads in opposite directions, and the two sections of threads are equal in length.

[0011] Preferably, the bottom of the connection frame is provided with long holes adapted to the moving track of the threaded plate, and the number of the long holes is two and they are symmetrically distributed left and right.

[0012] Preferably, a pressing wheel is provided at the bottom of the pressing plate, and the interior of the sleeve is hollow and the bottom thereof is designed to be open.

[0013] Preferably, a cleaning box door is provided outside the dust collection frame.

[0014] Preferably, the inner walls on opposite sides of the two dust collecting plates are both connected to a dust collecting head with one end extending to the outside thereof, and the number of the dust collecting heads is several and is distributed at equal distances up and down.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a paper pressing and dust prevention mechanism for a printing press, which has the following beneficial effects:

[0017] 1. The printing press uses a paper pressing and dust prevention mechanism. By setting an adjustment component, two fixed brackets are installed on the printing press. The pressing plate presses the top of the paper. The stepper motor is started to drive the second bevel gear to rotate through the output shaft. The second bevel gear and the first bevel gear are used together to make the threaded rod rotate to drive the two threaded plates and the two pressing plates to move relative to or away from each other, thereby adapting to papers of different sizes. There is no need to replace the paper pressing mechanism, which improves the practicality of the device.

[0018] 2. The printing press uses a paper pressing and dust prevention mechanism. By setting a dust suction component, when the paper is dry and sprayed with dust, the exhaust fan is started to extract the air inside the dust suction frame, so that a negative pressure is formed inside the dust suction frame. At this time, the floating dust enters the interior of the dust suction frame through the nozzle, the dust suction plate and the conveying hose, which is convenient for the staff to collect and process later, avoiding the floating dust from affecting the working environment, and further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view cross-sectional schematic diagram of the utility model;

[0020] Figure 2 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. fixed bracket; 2. connecting frame; 3. adjustment assembly; 31. threaded rod; 32. first bevel gear; 33. threaded plate; 34. stepping motor; 35. second bevel gear; 4. sleeve; 5. sliding plate; 6. compression spring; 7. pressure plate; 8. dust suction assembly; 81. dust suction frame; 82. filter frame; 83. exhaust fan; 84. dust suction plate; 85. delivery hose. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-2A paper pressing and dust prevention mechanism for a printing press comprises a fixed bracket 1, the number of the fixed brackets 1 is two and they are symmetrically distributed on the left and right sides, a connecting frame 2 is fixedly connected between the two fixed brackets 1, an adjusting component 3 with one end extending to the bottom thereof is movably connected between the left and right sides of the inner wall of the connecting frame 2, sleeves 4 are fixed on the left and right sides of the bottom of the adjusting component 3, the adjusting component 3 comprises a threaded rod 31, a threaded rod 31 is rotatably connected between the left and right sides of the inner wall of the connecting frame 2, two sections of threads in opposite directions are arranged on the outside of the threaded rod 31, the two sections of threads are equal in length, a first bevel gear 32 is fixedly connected to the outside of the threaded rod 31, and the threaded rod The external thread of 31 is connected with two threaded plates 33 which are respectively located on the left and right sides of the first bevel gear 32. The bottom of the connecting frame 2 is provided with long holes which are compatible with the moving trajectory of the threaded plates 33. The number of the long holes is two and they are symmetrically distributed on the left and right sides. The threaded plates 33 are slidably connected to the inner wall of the connecting frame 2. The bottoms of the two threaded plates 33 extend to the bottom of the connecting frame 2. The tops of the two sleeves 4 are respectively fixedly connected to the bottoms of the two threaded plates 33. The inner bottom wall of the connecting frame 2 is fixedly connected with a stepper motor 34. The output shaft of the stepper motor 34 is fixedly connected with a second bevel gear 35 which meshes with the outside of the first bevel gear 32.

[0024] The inner walls of the two sleeves 4 are slidably connected with sliding plates 5, and a compression spring 6 is fixedly connected between the top of the sliding plate 5 and the inner top wall of the sleeve 4. The bottom of the sliding plate 5 is fixedly connected to a pressure plate 7 with one end extending to the bottom of the sleeve 4, and a pressure wheel is arranged at the bottom of the pressure plate 7. The interior of the sleeve 4 is hollow and its bottom is designed to be open. The top of the connecting frame 2 is fixedly connected with a dust suction component 8 fixedly connected to the outside of the two fixed brackets 1. The dust suction component 8 includes a dust suction frame 81, and the top of the connecting frame 2 is fixedly connected with a dust suction frame 81. The outside of the dust suction frame 81 is provided with a cleaning box door. The inner top wall of the frame 81 is fixedly connected to a filter frame 82, and the top of the dust suction frame 81 is fixedly connected to an exhaust fan 83. The air inlet end of the exhaust fan 83 extends to the inside of the filter frame 82, and the air outlet end of the exhaust fan 83 is located outside the dust suction frame 81. The outsides of the two fixed brackets 1 are fixedly connected to dust suction plates 84, and the inner walls on the opposite sides of the two dust suction plates 84 are connected to dust suction heads with one end extending to the outside thereof. The number of dust suction heads is several and is equidistantly distributed up and down. The left and right sides of the inner wall of the dust suction frame 81 are connected to a delivery hose 85 with one end respectively connected to the inner walls of the two dust suction plates 84.

[0025] It is worth noting that the stepper motor 34 and the exhaust fan 83 appearing in the present application document are both externally connected to a driving power supply and a control switch, and the stepper motor 34 and the exhaust fan 83 are both conventionally known devices. The standard parts used in the present application document can be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the prior art, and the machinery, parts and equipment are all conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art. The contents not described in detail in the description belong to the prior art known to professional and technical personnel in this field, and will not be described in detail here.

[0026] In summary, the paper pressing and dust prevention mechanism of the printing press is provided with an adjustment component 3, two fixed brackets 1 are installed on the printing press, the pressure plate 7 presses the top of the paper, and the stepper motor 34 is started to drive the second bevel gear 35 to rotate through the output shaft. The second bevel gear 35 and the first bevel gear 32 are used in cooperation, so that the threaded rod 31 rotates to drive the two threaded plates 33 and the two pressure plates 7 to move relative to or opposite to each other, thereby adapting to papers of different sizes. There is no need to replace the paper pressing mechanism, which improves the practicality of the device. By providing a dust collection component 8, when the paper is dry and dust is sprayed, the exhaust fan 83 is started to remove the dust inside the dust collection frame 81. The air is extracted, so that negative pressure is formed inside the dust suction frame 81. At this time, the floating dust enters the dust suction frame 81 through the nozzle, the dust suction plate 84 and the conveying hose 85, which is convenient for the staff to collect and process later, avoiding the floating dust from affecting the working environment, further improving the practicality of the device, and solving the problem that the current traditional printing press paper pressing mechanism can only extrude paper of a single size. When it is necessary to extrude paper of different sizes, the paper pressing mechanism needs to be replaced, which limits the use of the device. At the same time, the traditional printing press paper pressing mechanism cannot process the dust sprayed when the paper is dried, affecting the working environment.

[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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper pressing and dust prevention mechanism for a printing press, comprising a fixed bracket (1), characterized in that: The number of the fixed brackets (1) is two and they are symmetrically distributed on the left and right sides. A connecting frame (2) is arranged between the two fixed brackets (1). An adjusting component (3) with one end extending to the bottom thereof is arranged between the left and right sides of the inner wall of the connecting frame (2). Sleeves (4) are arranged on the left and right sides of the bottom of the adjusting component (3). A sliding plate (5) is arranged on the inner walls of the two sleeves (4). A compression spring (6) is arranged between the top of the sliding plate (5) and the inner top wall of the sleeve (4). A pressing plate (7) with one end extending to the bottom of the sleeve (4) is arranged at the bottom of the sliding plate (5). A dust collecting component (8) fixedly connected to the outside of the two fixed brackets (1) is arranged at the top of the connecting frame (2). The adjusting assembly (3) comprises a threaded rod (31), a threaded rod (31) is arranged between the left and right sides of the inner wall of the connecting frame (2), a first bevel gear (32) is arranged outside the threaded rod (31), two threaded plates (33) are arranged outside the threaded rod (31) and are respectively located on the left and right sides of the first bevel gear (32), the threaded plates (33) are connected to the inner wall of the connecting frame (2), the bottoms of the two threaded plates (33) extend to the bottom of the connecting frame (2), the tops of the two sleeves (4) are respectively connected to the bottoms of the two threaded plates (33), the inner bottom wall of the connecting frame (2) is provided with a stepping motor (34), and a second bevel gear (35) meshing with the outside of the first bevel gear (32) is arranged at the output shaft of the stepping motor (34); The dust collection assembly (8) comprises a dust collection frame (81), the top of the connecting frame (2) is provided with a dust collection frame (81), the inner top wall of the dust collection frame (81) is provided with a filter frame (82), the top of the dust collection frame (81) is provided with an exhaust fan (83), the air inlet end of the exhaust fan (83) extends to the inside of the filter frame (82), the air outlet end of the exhaust fan (83) is located outside the dust collection frame (81), the outsides of the two fixed brackets (1) are provided with dust collection plates (84), and the left and right sides of the inner wall of the dust collection frame (81) are provided with a conveying hose (85) whose ends are respectively connected to the inner walls of the two dust collection plates (84).

2. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The threaded rod (31) is provided with two sections of threads in opposite directions on the outside, and the two sections of threads are equal in length.

3. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The bottom of the connection frame (2) is provided with long holes that match the moving track of the threaded plate (33), and the number of the long holes is two and they are distributed symmetrically on the left and right.

4. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: A pressing wheel is arranged at the bottom of the pressing plate (7); the interior of the sleeve (4) is hollow and the bottom is designed to be open.

5. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: A cleaning box door is arranged outside the dust collection frame (81).

6. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The inner walls on opposite sides of the two dust collecting plates (84) are both connected to a dust collecting head with one end extending to the outside thereof, and the number of the dust collecting heads is several and is distributed at equal distances up and down.

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