Pressing device of printing machine

Abstract

The utility model relates to a press-fit device of a printing machine, and belongs to the technical field of printing machines, the press-fit device comprises a mounting rod fixedly mounted between side columns on the two sides of a machine table, and a press-fit assembly is arranged on the lower side of the mounting rod; the press-fit assembly comprises a press-fit rod arranged on the upper side of the machine table and a plurality of press-fit bearings installed on the outer wall of the press-fit rod, inner rings of the press-fit bearings are in friction fit with the outer wall of the press-fit rod, and adjusting mechanisms are arranged at the two ends of the press-fit rod; the adjusting mechanism comprises a fixing block installed on the outer wall of the installation rod, an adjusting frame connected to the outer side of the fixing block in a sleeving mode, a supporting base fixedly connected to the bottom of the adjusting frame and a rotating base rotationally connected to the lower side of the supporting base. The pressing device of the printing machine is stable in pressing, convenient to flexibly adjust, high in applicability, reasonable in structure and high in practicability, the stability and reliability of the whole pressing device in the printing process are ensured, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing machines, in particular to a pressing device of a printing machine. BACKGROUND

[0002] In the printing process, paper is prone to warping during transmission, which affects the printing quality and efficiency. In order to overcome this problem, the printing machine field has been exploring effective paper pressing technology. In order to deal with the problem of paper warping, a steel sheet device is added to the printing machine in the prior art. The original design of this device is to press the paper with a steel sheet to achieve the effect of flattening the paper.

[0003] However, in actual application, this pressing method has obvious limitations. Although the steel sheet device in the prior art can press the paper to a certain extent, the pressing effect is not ideal. Specifically, the pressing between the steel sheet and the paper is not tight, which causes the paper to still be prone to warping. In addition, the adjustability of the steel sheet device is poor, which makes it difficult to adapt to paper of different sizes and thicknesses, thereby limiting its wide application in printing machines.

[0004] Therefore, a pressing device of a printing machine is proposed to solve the above-mentioned problems. CONTENT OF THE INVENTION

[0005] In view of the shortcomings of the prior art, the present application provides a pressing device of a printing machine, which has the advantages of stable pressing, easy and flexible adjustment, strong applicability, etc. It solves the problem that the pressing effect of the existing pressing technology is not ideal, the pressing between the steel sheet and the paper is not tight, which causes the paper to still be prone to warping, and the adjustability of the steel sheet device is poor, which makes it difficult to adapt to paper of different sizes and thicknesses.

[0006] In summary, the present application provides the following technical solution: a pressing device of a printing machine, comprising a mounting rod fixedly installed between two side columns on a machine table, a pressing assembly is arranged on the lower side of the mounting rod;

[0007] The pressing assembly comprises a pressing rod arranged on the upper side of the machine table and a plurality of pressing bearings mounted on the outer wall of the pressing rod. The inner ring of the pressing bearing is in frictional engagement with the outer wall of the pressing rod. The two ends of the pressing rod are provided with adjusting mechanisms.

[0008] The adjusting mechanism comprises a fixed block mounted on the outer wall of the mounting rod, an adjusting frame sleeved on the outside of the fixed block, a support seat fixedly connected to the bottom of the adjusting frame, and a rotating seat rotatably connected to the lower side of the support seat, the pressing rod is fixedly connected to the outer wall of the rotating seat, the top of the fixed block is rotatably connected with an adjusting screw, the adjusting screw is threadedly connected to the top of the adjusting frame, and the top of the adjusting frame is provided with a fixed nut threadedly connected to the outer wall of the adjusting screw.

[0009] The technical scheme of the present application has the advantages that the pressing bearing on the pressing rod is in close contact with the paper, thereby achieving a more compact pressing effect and effectively preventing the paper from warping during conveying, the pressing bearing can be adjusted in sliding mode on the pressing rod, so that the position thereof can be adjusted flexibly according to the size and thickness of the paper, the height and angle of the pressing assembly can be adjusted conveniently by using the adjusting mechanism, the height of the pressing bearing is adjusted by loosening the fixed nut, rotating the adjusting screw to drive the adjusting frame to move, guiding the adjusting frame by the fixed block to keep a stable up-down movement track, and the position of the adjusting frame is kept stable by rotating the fixed nut against the top of the adjusting frame after the adjusting frame is adjusted to a proper height, so that the structure is reasonable, the adjustment is convenient, the stability and reliability of the entire pressing device during printing are ensured, the service life of the equipment is prolonged, and the practicality is high.

[0010] Further, a first fastening screw is inserted into the inner side of the fixed block and threadedly connected to the inner side of the mounting rod, and the fixed block is fixedly mounted on the outer wall of the mounting rod by the first fastening screw.

[0011] The first fastening screw and the mounting rod cooperate to fix the fixed block, the first fastening screw is separated from the mounting rod by rotating, the fixed block is quickly disassembled, the mounting and dismounting are convenient, the later maintenance is facilitated, and the use is convenient.

[0012] Further, mounting grooves are formed in the left and right sides of the fixed block, the mounting grooves are matched with the adjusting frame, and the outer shape of the adjusting frame is in the form of a rectangular frame.

[0013] The mounting grooves facilitate the cooperation of the adjusting frame and the fixed block, the adjusting frame is blocked by the mounting rod at the rear side of the fixed block when the fixed block is fixed with the mounting rod, and the stable cooperation of the adjusting frame and the mounting grooves is ensured.

[0014] Further, a threaded hole is formed in the top of the adjusting frame and matched with the adjusting screw.

[0015] The beneficial effect of the further scheme is that the threaded hole facilitates the threaded assembly of the adjusting screw and the adjusting frame, so that rotating the adjusting screw can drive the adjusting frame to move, the fixed block guides the adjusting frame to keep a stable up-down movement track, and the height of the compression bearing is adjusted.

[0016] Further, the upper end of the adjusting screw is fixedly connected with a knob, and the diameter of the knob is larger than that of the adjusting screw.

[0017] The beneficial effect of the further scheme is that the knob facilitates the rotation adjustment of the adjusting screw, the height of the adjusting frame can be adjusted when the adjusting screw rotates, so that the height of the compression bearing is adjusted, which is convenient to operate, easy to use and high in practicality.

[0018] Further, the support seat is concave in shape, the upper end of the rotating seat extends to the inner side of the support seat, a rotating shaft is fixedly connected to the outer wall of the rotating seat, and the rotating shaft is in rotating fit with the inner side of the support seat.

[0019] The beneficial effect of the further scheme is that the rotating shaft can rotate the rotating seat, so that the rotating seat can rotate forward and backward along the inner side of the support seat, the angle of the compression rod is adjusted, the adaptability and flexibility of the printing machine are improved, which is convenient to operate, easy to use and high in practicality.

[0020] Further, the side of the rotating seat away from the rotating shaft is provided with a second fastening screw, the second fastening screw is inserted into the inner side of the support seat, and the second fastening screw is threadedly connected to the inner side of the rotating seat.

[0021] The beneficial effect of the further scheme is that the second fastening screw can fix the rotating seat, when the second fastening screw cooperates with the rotating seat, the rotating seat is limited to rotate, the angle of the compression rod is kept fixed, the stability of the connection is improved, the stability and reliability of the compression device in the printing process are ensured, which is convenient to use, when the second fastening screw is separated from the rotating seat, the angle of the compression rod can be adjusted, which is convenient to operate, easy to use and high in practicality.

[0022] Compared with the prior art, the compression device of the printing machine has the following beneficial effects:

[0023] The pressing device of the printing machine realizes more rigorous pressing effect by the close contact between the pressing bearing on the pressing rod and the paper, effectively prevents the warping phenomenon of the paper during the conveying process, the pressing bearing can be slidingly adjusted on the pressing rod, so that the position is flexibly adjusted according to the size and thickness of the paper, meanwhile, the height and angle of the pressing assembly are adjusted by the adjusting mechanism, the fixed nut is loosened, the adjusting screw rod is rotated to drive the adjusting frame to move, the adjusting frame is guided by the fixed block to keep stable up-down movement track, the height of the pressing bearing is adjusted, when the adjusting frame is adjusted to the appropriate height, the fixed nut is rotated and abuts against the top of the adjusting frame, so that the position of the adjusting frame is kept stable, through the above setting, the pressing is stable, the flexible adjustment is convenient, the applicability is strong, the structure is reasonable, the stability and reliability of the whole pressing device in the printing process are ensured, the service life of the equipment is prolonged, and the practicality is high. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the structural section view of the present application;

[0025] Figure 2 is the structural front view of the adjusting mechanism of the present application;

[0026] Figure 3 is the structural perspective view of the fixed block and the adjusting frame of the present application;

[0027] Figure 4 is the structural perspective view of the fixed block of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS:

[0029] 1, machine table; 2, side column; 3, mounting rod; 4, fixed block; 5, adjusting frame; 6, support seat; 7, rotating seat; 8, pressing rod; 9, pressing bearing; 10, first fastening screw; 11, adjusting screw rod; 12, knob; 13, fixed nut; 14, rotating shaft; 15, second fastening screw; 16, mounting groove. DETAILED DESCRIPTION

[0030] Please refer to Figures 1 to 4 A pressing device of a printing machine, comprising a mounting rod 3 fixedly installed between two side columns 2 on a machine table 1.

[0031] Please refer to Figure 1In the embodiment, the lower side of the mounting rod 3 is provided with a pressing assembly, which comprises a pressing rod 8 arranged on the upper side of the machine table 1 and a plurality of pressing bearings 9 mounted on the outer wall of the pressing rod 8, and the inner ring of the pressing bearing 9 is in frictional fit with the outer wall of the pressing rod 8. The pressing bearing 9 on the pressing rod 8 is in close contact with the paper, which realizes a more rigorous pressing effect and effectively prevents the paper from warping during the conveying process. The pressing bearing 9 can be adjusted on the pressing rod 8, so that the position can be flexibly adjusted according to the size and thickness of the paper.

[0032] Please refer to Figures 2 to 4 In the embodiment, the two ends of the pressing rod 8 are provided with adjusting mechanisms, which comprise a fixed block 4 mounted on the outer wall of the mounting rod 3, an adjusting frame 5 sleeved on the outer side of the fixed block 4, a support seat 6 fixedly connected to the bottom of the adjusting frame 5, and a rotating seat 7 rotationally connected to the lower side of the support seat 6. The pressing rod 8 is fixedly connected to the outer wall of the rotating seat 7. The top of the fixed block 4 is rotationally connected with an adjusting screw 11, which is threadedly connected to the top of the adjusting frame 5. The top of the adjusting frame 5 is provided with a fixed nut 13 threadedly connected to the outer wall of the adjusting screw 11. The adjusting mechanism is used to adjust the height and angle of the pressing assembly. By loosening the fixed nut 13, the adjusting screw 11 is rotated to drive the adjusting frame 5 to move. The fixed block 4 guides the adjusting frame 5 to keep a stable up-down movement track, so as to adjust the height of the pressing bearing 9. When the adjusting frame 5 is adjusted to a suitable height, the fixed nut 13 is rotated to abut against the top of the adjusting frame 5, so that the position of the adjusting frame 5 is kept stable. The structure is reasonable, the adjustment is convenient, the stability and reliability of the entire pressing device during the printing process are ensured, the service life of the equipment is prolonged, and the practicability is high.

[0033] It should be noted that the inner side of the fixed block 4 is inserted with a first fastening screw 10, which is threadedly connected to the inner side of the mounting rod 3. The fixed block 4 is fixedly mounted on the outer wall of the mounting rod 3 through the first fastening screw 10. The fixed block 4 is fixed through the cooperation of the first fastening screw 10 and the mounting rod 3. The first fastening screw 10 is separated from the mounting rod 3 by rotating, so as to realize the quick disassembly of the fixed block 4. The mounting and dismounting are convenient, the later maintenance is facilitated, and the use is convenient. Meanwhile, the left and right sides of the fixed block 4 are provided with mounting grooves 16, which are matched with the adjusting frame 5. The shape of the adjusting frame 5 is rectangular frame. The adjusting frame 5 is matched with the fixed block 4 through the mounting grooves 16. When the fixed block 4 is fixed with the mounting rod 3, the adjusting frame 5 is blocked by the mounting rod 3 at the rear side of the fixed block 4, so as to ensure the stable cooperation of the adjusting frame 5 and the mounting groove 16, improve the stability of the connection, and ensure the stability and reliability of the pressing device during the printing process.

[0034] It should be noted that the top of the adjusting frame 5 is provided with a threaded hole matched with the adjusting screw 11, and the adjusting screw 11 is threadedly assembled with the adjusting frame 5 through the threaded hole, so that the adjusting screw 11 can drive the adjusting frame 5 to move, and the fixed block 4 guides the adjusting frame 5 to keep a stable up-down movement track, thereby adjusting the height of the compression bearing 9. In addition, the upper end of the adjusting screw 11 is fixedly connected with a knob 12, and the diameter of the knob 12 is greater than that of the adjusting screw 11. The knob 12 is arranged to facilitate the rotation adjustment of the adjusting screw 11, so that the height of the adjusting frame 5 can be adjusted when the adjusting screw 11 rotates, thereby adjusting the height of the compression bearing 9, facilitating operation, convenient to use, and high in practicality.

[0035] In the embodiment, the support seat 6 is concave, the upper end of the rotating seat 7 extends to the inner side of the support seat 6, the outer wall of the rotating seat 7 is fixedly connected with a rotating shaft 14, and the rotating shaft 14 is in rotating fit with the inner side of the support seat 6. The rotating shaft 14 can rotate support the rotating seat 7, so that the rotating seat 7 can rotate back and forth along the inner side of the support seat 6, facilitating the adjustment of the angle of the compression rod 8, improving the adaptability and flexibility of the printing machine, facilitating operation, convenient to use, and high in practicality.

[0036] It should be noted that the side of the rotating seat 7 away from the rotating shaft 14 is provided with a second fastening screw 15, the second fastening screw 15 is inserted into the inner side of the support seat 6, and the second fastening screw 15 is threadedly connected to the inner side of the rotating seat 7. The second fastening screw 15 can fix the rotating seat 7, and when the second fastening screw 15 cooperates with the rotating seat 7, the rotating seat 7 can be limited to rotate, so that the angle of the compression rod 8 remains fixed, improving the stability of the connection, ensuring the stability and reliability of the compression device during the printing process, facilitating use, and facilitating the adjustment of the angle of the compression rod 8 when the second fastening screw 15 is separated from the rotating seat 7, facilitating operation, convenient to use, and high in practicality.

[0037] The working principle of the above embodiment is as follows:

[0038] In use, the compression bearing 9 on the compression rod 8 is in close contact with the paper, achieving a more solid compression effect, effectively preventing the paper from warping during transmission, and the compression bearing 9 can be adjusted on the compression rod 8 to adjust the position flexibly according to the size and thickness of the paper.

[0039] Meanwhile, by loosening the fixing nut 13, rotating the adjusting screw 11 drives the adjusting frame 5 to move, and the fixed block 4 guides the adjusting frame 5, so that the adjusting frame 5 keeps a stable up-down movement track, and the height of the pressing bearing 9 is adjusted; when the adjusting frame 5 is adjusted to a suitable height, the fixed nut 13 is rotated to abut against the top of the adjusting frame 5, so that the position of the adjusting frame 5 is kept stable, the stability of the connection is improved, and the stability and reliability of the pressing device in the printing process are ensured;

[0040] In addition, by rotating the second fastening screw 15, the second fastening screw 15 is separated from the rotating seat 7; after the second fastening screw 15 is separated from the rotating seat 7, the rotating seat 7 can rotate forward and backward along the inner side of the supporting seat 6, so that the angle of the pressing rod 8 is adjusted; after being adjusted to a suitable angle, the second fastening screw 15 is rotated again to keep the screw thread connection with the rotating seat 7; when the second fastening screw 15 cooperates with the rotating seat 7, the rotating of the rotating seat 7 is limited, so that the angle of the pressing rod 8 is kept fixed, the stability of the connection is improved, and the stability and reliability of the pressing device in the printing process are ensured.

Claims

1. A pressing device for a printing press, comprising a mounting rod (3) fixedly installed between two side columns (2) on a machine base (1), characterized in that: A pressing assembly is provided on the lower side of the mounting rod (3); The pressing assembly includes a pressing rod (8) located on the upper side of the machine base (1) and multiple sets of pressing bearings (9) installed on the outer wall of the pressing rod (8). The inner ring of the pressing bearing (9) is in frictional engagement with the outer wall of the pressing rod (8). Both ends of the pressing rod (8) are provided with adjustment mechanisms. The adjustment mechanism includes a fixed block (4) mounted on the outer wall of the mounting rod (3), an adjustment frame (5) sleeved on the outside of the fixed block (4), a support seat (6) fixedly connected to the bottom of the adjustment frame (5), and a rotating seat (7) rotatably connected to the lower side of the support seat (6). The pressing rod (8) is fixedly connected to the outer wall of the rotating seat (7). An adjustment screw (11) is rotatably connected to the top of the fixed block (4). The adjustment screw (11) is threadedly connected to the top of the adjustment frame (5). A fixing nut (13) is provided on the top of the adjustment frame (5) and threadedly connected to the outer wall of the adjustment screw (11).

2. The pressing device for a printing press according to claim 1, characterized in that: The inner side of the fixing block (4) is fitted with a first fastening screw (10), which is threaded to the inner side of the mounting rod (3). The fixing block (4) is fixedly installed on the outer wall of the mounting rod (3) by the first fastening screw (10).

3. The pressing device for a printing press according to claim 1, characterized in that: The fixing block (4) has mounting slots (16) on both the left and right sides. The mounting slots (16) are adapted to the adjusting frame (5). The adjusting frame (5) is rectangular in shape.

4. The pressing device for a printing press according to claim 1, characterized in that: The top of the adjustment frame (5) is provided with a threaded through hole that is compatible with the adjustment screw (11).

5. The pressing device for a printing press according to claim 1, characterized in that: A knob (12) is fixedly connected to the upper end of the adjusting screw (11), and the diameter of the knob (12) is larger than the diameter of the adjusting screw (11).

6. The pressing device for a printing press according to claim 1, characterized in that: The support base (6) has a concave shape. The upper end of the rotating base (7) extends to the inner side of the support base (6). A rotating shaft (14) is fixedly connected to the outer wall of the rotating base (7). The rotating shaft (14) rotates and engages with the inner side of the support base (6).

7. The pressing device for a printing press according to claim 6, characterized in that: A second fastening screw (15) is provided on the side of the rotating seat (7) away from the rotating shaft (14). The second fastening screw (15) is inserted into the inner side of the support seat (6) and is threaded to the inner side of the rotating seat (7).

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