Printing net rack of printing machine

Abstract

The printing net rack of the printing machine comprises a base, a movable frame is arranged above the base, an annular groove is formed in the inner wall of the movable frame, two symmetrically-arranged connecting plates are connected between the front end and the rear end of the annular groove in a sliding mode, and fixing frames are arranged on the opposite faces of the two connecting plates. The two fixing frames are each provided with a fixing mechanism used for fixing the net rack, a moving mechanism used for moving the two connecting plates is arranged in the annular groove, and a lifting mechanism used for lifting the moving frame is arranged at the upper end of the base. According to the utility model, the plurality of lifting screw rods are rotated, and the movable frame is in threaded connection with the plurality of lifting screw rods, so that the movable frame drives the net rack to stably move up and down, and the height of the net rack is adjusted while the stable movement of the net rack is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a printing grid frame of a printing machine. Background Art

[0002] A printing press is a machine used to print text and images. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding (including folding). Its working principle is: first, the text and image to be printed are made into a printing plate, which is then mounted on a printing press. Then, ink is applied to the places on the printing plate where the text and image are, either manually or by a printing press, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating a printed product identical to the printing plate.

[0003] As disclosed in the publication (announcement) number: CN220262332U, a printing grid frame of a printing machine discloses a printing grid frame of a printing machine, including a printing grid frame, a base is arranged below the printing grid frame, lifting mechanisms are arranged on both sides of the base, a support seat is fixedly installed on the upper end of the base, and a transmission mechanism is arranged on the support seat; the transmission mechanism includes: a servo motor, which is vertically fixedly installed at the bottom center position of the support seat. The utility model sets two sets of lifting mechanisms, utilizes the structure of the lead screw and the threaded seat in the two sets of lifting mechanisms to drive the lifting and lowering adjustment of the printing grid, and the design of the driving gear, the driven gear, the servo motor and the second gear in the transmission mechanism serves as a power source to control the rotation of the lead screw in the lifting mechanism. A servo motor is used to drive the rotation of the two lead screws. Although the power consumption is slightly increased, the power consumption is effectively reduced compared with the energy consumed by four sets of motors working at the same time. The device solves the problem of energy consumption reduction, but only relies on two staggered threaded rods to achieve lifting and lowering, and cannot guarantee stability during the movement, so that the column may be stuck during the movement, and the grid frame can only fix a single grid, and cannot fix different grids, which reduces the adaptability of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. By rotating multiple lifting screws and utilizing the threaded connection between a moving frame and the multiple lifting screws, the moving frame can move up and down stably with the grid, thereby ensuring that the grid moves stably and the height can be adjusted at the same time, and a printing grid for a printing machine is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A printing grid frame of a printing machine comprises a base, a movable frame is arranged above the base, an annular groove is opened on the inner wall of the movable frame, two symmetrically arranged connecting plates are slidably connected between the front and rear ends of the annular groove, fixed frames are arranged on the opposite surfaces of the two connecting plates, fixing mechanisms for fixing the grid frame are arranged on the two fixed frames, a movable mechanism for moving the two connecting plates is arranged in the annular groove, and a lifting mechanism for lifting the movable frame is arranged on the upper end of the base.

[0007] Preferably, the fixing mechanism includes an adjusting screw threadedly connected to the upper end of the fixing frame, a pressure plate is provided at the lower end of the two adjusting screws, the adjusting screw is rotatably connected to the upper end of the pressure plate, and two limit rods are provided in the fixing frame, the two limit rods both pass through the pressure plate and are slidably connected thereto.

[0008] Preferably, the moving mechanism includes two symmetrically arranged double-headed screws that are rotatably connected to the annular groove and the side wall of the moving frame. The two ends of the two connecting plates are respectively arranged on the outer walls of the two ends of the two double-headed screws and are threadedly connected. The threads at the two ends of the two double-headed screws have opposite rotation directions.

[0009] Preferably, the lifting mechanism comprises a plurality of symmetrically arranged lifting screws rotatably connected to the upper end of the base, and the plurality of lifting screws all penetrate the moving frame and are threadedly connected thereto.

[0010] Preferably, two symmetrically arranged fixed plates are provided at the upper end of the base, two symmetrically arranged transmission rods are rotatably connected through the two fixed plates, worms are provided on the outer walls at both ends of the two transmission rods, and worm wheels matching with the worms are provided on the outer walls of the multiple lifting screws.

[0011] Preferably, the outer walls of the two transmission rods and the outer walls of the two double-headed screws are both provided with pulleys, and the two pulleys are connected via belt transmission.

[0012] Beneficial effects of the utility model:

[0013] 1. By rotating multiple lifting screws and utilizing the threaded connection between the moving frame and the multiple lifting screws, the moving frame can move up and down stably with the grid, ensuring that the grid moves stably while adjusting its height.

[0014] 2. The two connecting plates are moved to drive the two moving frames to move, thereby changing the distance between the two moving frames. Therefore, the device can fix grids of different sizes, thereby improving the overall adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a rear view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic top view of the overall structure of the utility model.

[0018] In the figure: 1 base, 2 fixed plate, 3 transmission rod, 4 worm, 5 lifting screw, 6 worm wheel, 7 moving frame, 8 annular groove, 9 double-headed screw, 10 connecting plate, 11 fixed frame, 12 limit rod, 13 adjusting screw, 14 pressure plate, 15 pulley. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Reference Figure 1-3 A printing grid frame of a printing machine includes a base 1, a movable frame 7 is provided above the base 1, an annular groove 8 is opened on the inner wall of the movable frame 7, two symmetrically arranged connecting plates 10 are slidably connected between the front and rear ends of the annular groove 8, fixed frames 11 are provided on the opposite surfaces of the two connecting plates 10, and a fixing mechanism for fixing the grid frame is provided on the two fixed frames 11. A moving mechanism for moving the two connecting plates 10 is provided in the annular groove 8. The fixing mechanism includes an adjusting screw 13 threadedly connected to the upper end of the fixing frame 11, and a pressing plate 14 is provided at the lower end of the two adjusting screws 13. The adjusting screw 13 is rotatably connected to the upper end of the pressing plate 14, and two limit rods 12 are provided in the fixing frame 11. The two limit rods 12 both penetrate the pressing plate 14 and are slidably connected thereto.

[0022] A lifting mechanism for lifting the movable frame 7 is provided at the upper end of the base 1. The movable mechanism includes two symmetrically arranged double-headed screws 9 which are rotatably connected to the annular groove 8 and the side wall of the movable frame 7. Both ends of the two connecting plates 10 are respectively arranged on the outer walls of both ends of the two double-headed screws 9 and are connected by threads. The threads at both ends of the two double-headed screws 9 have opposite rotation directions. By moving the two connecting plates 10, the two fixed frames 11 are driven to move, thereby changing the distance between the two fixed frames 11. Therefore, the device can fix grids of different sizes, thereby improving the overall adaptability of the device.

[0023] The lifting mechanism includes a plurality of symmetrically arranged lifting screws 5 rotatably connected to the upper end of the base 1. The plurality of lifting screws 5 all penetrate the moving frame 7 and are threadedly connected thereto. By rotating the plurality of lifting screws 5 and utilizing the threaded connection between the moving frame 7 and the plurality of lifting screws 5, the moving frame 7 can move up and down stably with the grid, thereby ensuring that the grid moves stably while adjusting its height.

[0024] Two symmetrically arranged fixed plates 2 are provided at the upper end of the base 1, and two symmetrically arranged transmission rods 3 are rotatably connected through the two fixed plates 2. Worm gears 4 are provided on the outer walls of both ends of the two transmission rods 3, and worm wheels 6 matching with the worm gears 4 are provided on the outer walls of the multiple lifting screws 5.

[0025] The outer walls of the two transmission rods 3 and the outer walls of the two double-headed screw rods 9 are both provided with pulleys 15, and the two pulleys 15 are connected via belt transmission.

[0026] When the utility model is used, when fixing the printing grid, the printing grid is placed in the two fixed frames 11, and the two adjusting screws 13 are rotated respectively. Under the limiting action of the two limiting rods 12 and the pressing plate 14, the two adjusting screws 13 are moved downward to push the two pressing plates 14 downward, so that the two pressing plates 14 are in contact with the two ends of the grid, and the two ends of the grid are fixed, thereby realizing the rapid installation of the grid. When installing grids of different sizes, one of the double-headed screws 9 is rotated, and the two double-headed screws 9 are rotated under the transmission action of the pulley 15 and the belt between the two double-headed screws 9. The threads at the two ends of the double-headed screws 9 are rotated in opposite directions, and the two connecting plates 10 are threadedly connected to the double-headed screws 9, so that the two connecting plates 10 move and drive the two fixed frames 11 to move, thereby changing the distance between the two fixed frames 11, so that the device can fix grids of different sizes, thereby improving the overall adaptability of the device.

[0027] When the height of the grid needs to be adjusted, one of the transmission rods 3 is rotated under the transmission action of the pulley 15 and the belt between the two transmission rods 3, so that the worm 4 on the outer wall of the two transmission rods 3 is rotated, and then the engagement of the worm 4 with the worm wheel 6 is used to rotate the multiple lifting screws 5, and the threaded connection between the moving frame 7 and the multiple lifting screws 5 is used to make the moving frame 7 move up and down stably with the grid, so as to ensure the stable movement of the grid and the height adjustment at the same time.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing grid frame of a printing machine, comprising a base (1), characterized in that: A movable frame (7) is provided above the base (1), an annular groove (8) is provided on the inner wall of the movable frame (7), two symmetrically arranged connecting plates (10) are slidably connected between the front and rear ends of the annular groove (8), fixed frames (11) are provided on the opposite surfaces of the two connecting plates (10), and fixing mechanisms for fixing the grid are provided on the two fixing frames (11), a movable mechanism for moving the two connecting plates (10) is provided in the annular groove (8), and a lifting mechanism for lifting the movable frame (7) is provided at the upper end of the base (1).

2. A printing grid for a printing machine according to claim 1, characterized in that: The fixing mechanism comprises an adjusting screw (13) threadedly connected to the upper end of the fixing frame (11); a pressing plate (14) is provided at the lower end of the two adjusting screws (13); the adjusting screws (13) are rotatably connected to the upper end of the pressing plate (14); and two limiting rods (12) are provided in the fixing frame (11); the two limiting rods (12) penetrate the pressing plate (14) and are slidably connected thereto.

3. A printing grid for a printing machine according to claim 2, characterized in that: The moving mechanism comprises two symmetrically arranged double-headed screws (9) which penetrate and rotatably connect the annular groove (8) and the side wall of the moving frame (7); the two ends of the two connecting plates (10) are respectively arranged on the outer walls at both ends of the two double-headed screws (9) and are connected by threads; the threads at the two ends of the two double-headed screws (9) have opposite rotation directions.

4. A printing grid for a printing machine according to claim 3, characterized in that: The lifting mechanism comprises a plurality of symmetrically arranged lifting screws (5) rotatably connected to the upper end of the base (1); the plurality of lifting screws (5) all penetrate the moving frame (7) and are threadedly connected thereto.

5. A printing grid for a printing machine according to claim 4, characterized in that: Two symmetrically arranged fixing plates (2) are provided at the upper end of the base (1); two symmetrically arranged transmission rods (3) are rotatably connected to and penetrate between the two fixing plates (2); worms (4) are provided on the outer walls at both ends of the two transmission rods (3); and worm wheels (6) matching the worms (4) are provided on the outer walls of the plurality of lifting screws (5).

6. A printing grid for a printing machine according to claim 5, characterized in that: The outer walls of the two transmission rods (3) and the outer walls of the two double-headed screw rods (9) are both provided with pulleys (15), and the two pulleys (15) are connected via belt transmission.

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