Winding and unwinding lifting structure of digital printing machine

Abstract

The utility model discloses a take-up and pay-off lifting structure of a digital printing machine, which relates to the technical field of digital printing machines and comprises two symmetrically arranged side plates, two swing arms and an air expansion shaft arranged between the two swing arms, the inner walls of the side plates are fixedly connected with chucks, one side of each chuck is fixedly connected with a connecting plate, and the other side of each chuck is fixedly connected with a lifting plate. Screw rods are in threaded connection with the two side walls of the connecting plate, two clamping plates are slidably connected to the interior of the connecting plate, the clamping plates are rotatably connected with the corresponding screw rods, and electric telescopic rods are fixedly arranged on the inner walls of the side plates; the problems that in the prior art, a chuck can only adapt to an air expansion shaft of a fixed size, the limitation means that when air expansion shafts of different sizes need to be replaced, the whole chuck needs to be replaced, and the complexity of maintenance and operation is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of digital printing machines, in particular to a reel-reeling and reel-unreeling lifting structure of a digital printing machine. Background Art

[0002] The reel lifting structure of a digital printing machine refers to a mechanical structure used to reel in and out paper and control the lifting of the paper. It usually consists of a paper reel system and a lifting system. The paper reel system is a device used to reel in and out paper. It usually includes a paper roll holder and a paper reel device, which can unroll the paper from the paper roll holder and print it, or retract the printed paper back to the paper roll holder. The lifting system is used to control the lifting of the paper roll. It usually consists of a paper roll lifting device, which can control the lifting height of the paper roll to meet the needs of different printing tasks. The paper roll lifting device usually consists of a motor, a roller and a transmission device, and the lifting and lowering of the paper roll is achieved by controlling the rotation of the motor.

[0003] The chucks of some digital printing machines can only adapt to air shafts of fixed sizes. This limitation means that when an air shaft of a different size needs to be replaced, the entire chuck must be replaced, which increases the complexity of maintenance and operation. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a reel-up and reel-down lifting structure of a digital printing machine, which solves the problem that the chuck in the prior art can only adapt to the air shaft of a fixed size. This limitation means that when the air shaft of a different size needs to be replaced, the entire chuck must be replaced, which increases the complexity of maintenance and operation.

[0005] To achieve the above-mentioned purpose, the utility model proposes a reel-reeling and lifting structure for a digital printing machine, comprising: two symmetrically arranged side panels, two swing arms, an inflatable shaft is arranged between the two swing arms, the inner wall of the side panel is fixedly connected with a chuck, one side of the chuck is fixedly connected with a connecting plate, both side walls of the connecting plate are threadedly connected with screws, two clamping plates are slidably connected inside the connecting plate, and the clamping plates are rotatably connected to the corresponding screws, an electric telescopic rod is fixedly arranged on the inner wall of the side panel, and the telescopic end of the electric telescopic rod is fixedly connected to the chuck.

[0006] As a further solution of the utility model: the upper ends of the two side panels are commonly fixedly connected to a top plate, a fixing column is fixedly connected between the two side panels, and the outer ends of the fixing column are symmetrically rotatably connected to the swing arm.

[0007] As a further solution of the utility model: annular grooves are symmetrically arranged at both ends of the fixed column, a round hole is formed at one end of the swing arm, the round hole of the swing arm passes through the fixed column, and the outer side wall of the swing arm at the round hole is adapted to the annular groove of the fixed column.

[0008] As a further solution of the utility model: a cylinder is fixedly arranged on the inner wall of the side plate, and the output end of the cylinder is rotationally connected with the swing arm.

[0009] As a further solution of the utility model: a sliding groove is formed at the upper end of the swing arm, and both ends of the air shaft are in sliding contact with the sliding groove.

[0010] As a further solution of the utility model: the connecting plate is in a U shape.

[0011] As a further solution of the utility model: the number of the clamping plates is the same as that of the screw rods.

[0012] As a further solution of the utility model: a spring is fixedly connected between the clamping plate and the inner wall of the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In order to enable the digital printing machine equipment to assemble air shafts of different sizes, when the air shaft needs to be replaced, after installing materials on the outer ring of the air shaft, place the air shaft between the sliding grooves of the two swing arms. According to the size of the air shaft, start the electric telescopic rod, and the telescopic end of the electric telescopic rod drives the chuck to move, so that the chuck corresponds to the current air shaft. Start the cylinder, and the output end of the cylinder drives the swing arm and the air shaft as a whole to rotate downward until the end of the air shaft falls between the two clamping plates. Rotate the two screw rods, so that the screw rods drive the corresponding clamping plates to move towards the inside of the connecting plate, and the two clamping plates approach each other to clamp the end of the air shaft. Through the above steps, air shafts of different sizes can be clamped between the two clamping plates, meeting the requirement of assembling air shafts of different sizes. This structure can adapt to air shafts of different sizes by adjusting the position of the chuck and the clamping range of the clamping plates, without the need to replace the chuck. This can improve the flexibility and adaptability of the digital printing machine, reduce the complexity of operation and maintenance, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a schematic structural diagram of the utility model;

[0017] Figure 3 is a schematic structural diagram of the utility model.

[0018] In the figure: 1. side panel; 2. top panel; 3. cylinder; 4. inflatable shaft; 5. swing arm; 6. spring; 7. chuck; 8. slide groove; 9. fixed column; 10. electric telescopic rod; 11. connecting plate; 12. screw; 13. splint. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0020] like Figure 1-3 As shown, a reel-reeling and reel-unreeling lifting structure of a digital printing machine comprises: two symmetrically arranged side panels 1, and the upper ends of the two side panels 1 are fixedly connected to a top panel 2.

[0021] A fixing column 9 is fixedly connected between the two side plates 1, and the outer ends of the fixing column 9 are symmetrically rotatably connected with the swing arm 5. Specifically, annular grooves are symmetrically arranged at both ends of the fixing column 9, and a circular hole is opened at one end of the swing arm 5. The circular hole of the swing arm 5 passes through the fixing column 9, and the outer wall of the swing arm 5 at the circular hole is adapted to the annular groove of the fixing column 9, so that the swing arm 5 can rotate around the fixing column 9.

[0022] The inner wall of the side plate 1 is fixedly provided with a cylinder 3, and the output end of the cylinder 3 is rotatably connected to the swing arm 5. When the cylinder 3 is started, the output end of the cylinder 3 can drive the swing arm 5 to rotate upward or downward.

[0023] A slide groove 8 is provided at the upper end of the swing arm 5 , and an inflatable shaft 4 is provided between the two swing arms 5 . The outer ring of the inflatable shaft 4 is used for installing materials, and both ends of the inflatable shaft 4 are in sliding contact with the slide groove 8 .

[0024] The inner wall of the side plate 1 is fixedly connected with a clamp 7, one side of the clamp 7 is fixedly connected with a connecting plate 11, the connecting plate 11 is in a U-shape, and both side walls of the connecting plate 11 are threadedly connected with screws 12.

[0025] Two clamping plates 13 are slidably connected inside the connecting plate 11 . The number of the clamping plates 13 is consistent with the number of the screw rods 12 , and the clamping plates 13 are rotationally connected to the corresponding screw rods 12 .

[0026] A spring 6 is fixedly connected between the clamping plate 13 and the inner wall of the connecting plate 11 to assist the movement of the clamping plate 13 and facilitate the restoration of the clamping plate 13 to its original position.

[0027] An electric telescopic rod 10 is fixedly provided on the inner wall of the side plate 1 , and the telescopic end of the electric telescopic rod 10 is fixedly connected to the clamp 7 .

[0028] In order to enable the digital printing machine to be equipped with inflatable shafts 4 of different sizes, when the inflatable shaft 4 needs to be replaced, after the material is installed on the outer ring of the inflatable shaft 4, the inflatable shaft 4 is placed between the slide grooves 8 of the two swing arms 5, and the electric telescopic rod 10 is started according to the size of the inflatable shaft 4. The telescopic end of the electric telescopic rod 10 drives the chuck 7 to move so that the chuck 7 corresponds to the current inflatable shaft 4, and the cylinder 3 is started. The output end of the cylinder 3 drives the swing arm 5 and the inflatable shaft 4 to rotate downward as a whole until the end of the inflatable shaft 4 falls between the two clamping plates 13, and the two screws 12 are rotated so that the screws 12 drive the corresponding clamping plates 13 to move to the inner side of the connecting plate 11, and the two clamping plates 13 approach each other to clamp the end of the inflatable shaft 4.

[0029] Working principle:

[0030] In order to enable the digital printing machine to be equipped with inflatable shafts 4 of different sizes, when the inflatable shaft 4 needs to be replaced, after the material is installed on the outer ring of the inflatable shaft 4, the inflatable shaft 4 is placed between the slide grooves 8 of the two swing arms 5, and the electric telescopic rod 10 is started according to the size of the inflatable shaft 4. The telescopic end of the electric telescopic rod 10 drives the chuck 7 to move so that the chuck 7 corresponds to the current inflatable shaft 4, and the cylinder 3 is started. The output end of the cylinder 3 drives the swing arm 5 and the inflatable shaft 4 to rotate downward as a whole until the end of the inflatable shaft 4 falls between the two clamping plates 13, and the two screws 12 are rotated so that the screws 12 drive the corresponding clamping plates 13 to move to the inner side of the connecting plate 11, and the two clamping plates 13 approach each other to clamp the end of the inflatable shaft 4.

[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", 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 utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, as well as a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A reel lifting and unloading structure for a digital printing machine, characterized in that: Including: Two symmetrically arranged side plates (1), two swing arms (5). An air shaft (4) is arranged between the two swing arms (5). A chuck (7) is fixedly connected to the inner wall of the side plate (1). One side of the chuck (7) is fixedly connected to an adapter plate (11). Screws (12) are threadedly connected to both side walls of the adapter plate (11). Two clamping plates (13) are slidably connected inside the adapter plate (11), and the clamping plates (13) are rotatably connected to the corresponding screws (12). An electric telescopic rod (10) is fixedly arranged on the inner wall of the side plate (1), and the telescopic end of the electric telescopic rod (10) is fixedly connected to the chuck (7).

2. The reel-reel lifting and lowering structure of a digital printing machine according to claim 1, characterized in that: A top plate (2) is fixedly connected to the upper ends of the two side plates (1) together. A fixed column (9) is fixedly connected between the two side plates (1). The outer ends of both sides of the fixed column (9) are symmetrically rotatably connected to the swing arms (5).

3. The reel-reel lifting and lowering structure of a digital printing machine according to claim 2, characterized in that: Circular grooves are symmetrically arranged at both ends of the fixed column (9). A circular hole is formed at one end of the swing arm (5). The circular hole of the swing arm (5) passes through the fixed column (9), and the outer wall of the swing arm (5) at the circular hole is adapted to the circular groove of the fixed column (9).

4. The reel-reel lifting and lowering structure of a digital printing machine according to claim 1, characterized in that: A cylinder (3) is fixedly arranged on the inner wall of the side plate (1), and the output end of the cylinder (3) is rotatably connected to the swing arm (5).

5. The reel-reel lifting and lowering structure of a digital printing machine according to claim 1, characterized in that: A chute (8) is formed at the upper end of the swing arm (5), and both ends of the air shaft (4) are in sliding contact with the chute (8).

6. The reel-reel lifting and lowering structure of a digital printing machine according to claim 1, characterized in that: The adapter plate (11) is in a U shape.

7. The reel-reel lifting and lowering structure of a digital printing machine according to claim 1, characterized in that: The number of the clamping plates (13) is the same as that of the screws (12).

8. The reel-reel lifting and lowering structure of a digital printing machine according to claim 1, characterized in that: A spring (6) is fixedly connected between the clamping plate (13) and the inner wall of the adapter plate (11).

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