Printer with automatic lifting cross beam

Abstract

The utility model provides a printer with an automatic lifting cross beam, which comprises a rack, a printing headstock, a movable cross beam and a printing platform, lifting assemblies used for driving the movable cross beam to move up and down are arranged on two sides of the printing platform, each lifting assembly comprises a mounting plate, and a screw rod is vertically mounted on one side of each mounting plate through a bearing seat. A supporting plate is vertically and slidably connected to one side of the mounting plate, and the top end of the supporting plate is fixedly connected with the bottom end of the movable cross beam; the lead screw is connected with a ball nut, and the ball nut is arranged between the mounting plate and the supporting plate and fixedly connected with the supporting plate through a fastener. Compared with the mode that a ball nut is fixed, and a lead screw rotates and moves in the prior art, the ink-jet printer has the advantages of being smaller in inertia, higher in precision and longer in service life, meanwhile, the ink-jet printer has higher acceleration and dynamic response speed, and can be better suitable for large-breadth ink-jet printing scenes.

Description

Technical Field

[0001] This utility model belongs to the field of printer technology, and more specifically, it relates to a printer with an automatic beam lifting mechanism. Background Technology

[0002] UV printers, also known as universal flatbed printers or flatbed printers, have broken through the bottlenecks of digital printing technology and are a high-tech, plate-free, full-color digital printing machine.

[0003] A Chinese patent publication number, CN216993633U, discloses a printer with an automatic lifting beam. The printer includes a frame, a printing carriage, a moving beam, and a printing platform. Support plates are provided on both sides of the moving beam, and lifting components are installed on the support plates. The lifting components drive the support plates to move up and down, thereby raising and resetting the moving beam. The lifting components can use a geared motor, a drive wheel, a driven wheel, and a lead screw. Driving the lead screw moves the support plates, causing them to rise and fall. The moving beam is fixed to the support plates, thus achieving automatic lifting of the moving beam. This allows the printer to adapt to products of different sizes, making it a multi-purpose machine.

[0004] The aforementioned printer with automatic beam lifting uses a lead screw to drive the beam's vertical movement. The ball screw and its corresponding ball nut are fixed in place, meaning the ball nut is fixed while the lead screw rotates and moves. This results in low rigidity and susceptibility to bending deformation in actual use. Furthermore, the large inertia causes vibration when the beam stops at the designated position, hindering efficient and stable operation. Therefore, this paper researches and improves upon the existing structure and its shortcomings to provide a printer with automatic beam lifting, aiming for greater practical value. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a printer with an automatic beam lifting mechanism, achieved through the following specific technical means:

[0006] A printer with an automatic beam lifting mechanism includes a frame, a print head, a movable beam, and a print platform. Lifting assemblies for driving the movable beam up and down are located on both sides of the print platform. Each lifting assembly includes a mounting plate. A lead screw is vertically mounted on one side of the mounting plate via a bearing seat. A support plate is vertically slidably connected to one side of the mounting plate. The top end of the support plate is fixedly connected to the bottom end of the movable beam. A ball nut is connected to the lead screw, and the ball nut is positioned between the mounting plate and the support plate and fixedly connected to the support plate by fasteners. A driving component is fixedly mounted on one side of the bottom of the mounting plate to drive the lead screw to rotate.

[0007] Furthermore, two sets of sliders are fixedly installed on one side of the top of the mounting plate, and the two sets of sliders are symmetrically arranged on both sides of the lead screw; two sets of guide rails are fixedly installed on one side of the support plate, and the two sets of guide rails are slidably connected to the sliders respectively.

[0008] Furthermore, the driving component is a geared motor, and the motor shaft of the geared motor is fixedly connected to one end of the lead screw via a coupling.

[0009] Furthermore, photoelectric slot switches are fixedly installed on both the top and bottom ends of one side of the mounting plate, and two sets of contact pieces are fixedly installed on one side of the support plate corresponding to the two sets of photoelectric slot switches by fasteners.

[0010] Furthermore, linear motor modules are installed on both the left and right sides of the printing platform, and one side of the mounting plate is fixedly connected to one side of the slide of the linear motor module.

[0011] Furthermore, the support plate and the movable crossbeam are connected by fixed angle brackets, and the fixed angle brackets are fixedly connected to the support plate and the movable crossbeam by fastening screws.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes the cooperation of a bearing housing and a lead screw to achieve a stable connection of the lead screw to the mounting plate. The cooperation between the lead screw and the ball nut enables flexible movement of the support plate. This allows the support plate to move even when the lead screw rotates without moving. Compared to the existing method of "fixing the ball nut and rotating and moving the lead screw," this invention features lower inertia, higher precision, and longer lifespan. It also offers higher acceleration and dynamic response speed, making it better suited for large-format inkjet printing applications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the printer of this utility model.

[0015] Figure 2 This is a schematic diagram of the printing platform structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the lifting component structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the lead screw and drive component structure of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Mounting plate; 2. Lead screw; 3. Support plate; 4. Moving crossbeam; 5. Drive component; 6. Slider; 7. Guide rail; 8. Slotted photoelectric switch; 9. Contact piece. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] This utility model provides a printer with an automatic beam lifting mechanism, including a frame, a print head, a movable beam 4, and a print platform. Lifting components for driving the movable beam 4 to move up and down are provided on both sides of the print platform. Each lifting component includes a mounting plate 1. A lead screw 2 is vertically mounted on one side of the mounting plate 1 via a bearing seat. A support plate 3 is vertically slidably connected to one side of the mounting plate 1. The top end of the support plate 3 is fixedly connected to the bottom end of the movable beam 4. A ball nut is connected to the lead screw 2, and the ball nut is positioned between the mounting plate 1 and the support plate 3, and is fixedly connected to the support plate 3 by fasteners. A driving component 5 is fixedly mounted on one side of the bottom end of the mounting plate 1 to drive the lead screw 2 to rotate.

[0026] Two sets of sliders 6 are fixedly installed on one side of the top of the mounting plate 1, and the two sets of sliders 6 are symmetrically arranged on both sides of the lead screw 2; two sets of guide rails 7 are fixedly installed on one side of the support plate 3, and the two sets of guide rails 7 are slidably connected to the sliders 6 respectively, which can ensure that the support plate 3 can move accurately and smoothly on one side of the mounting plate 1, and at the same time can realize the effective connection between the support plate 3 and the mounting plate 1, preventing the support plate 3 from detaching.

[0027] The driving component 5 is a geared motor, and the motor shaft of the geared motor is fixedly connected to one end of the lead screw 2 through a coupling to provide power for the rotation of the lead screw 2.

[0028] The mounting plate 1 has slotted photoelectric switches 8 fixedly installed on both the top and bottom ends of one side. On one side of the support plate 3, two sets of contact pieces 9 are fixedly installed on the corresponding two sets of slotted photoelectric switches 8 by fasteners to prevent the support plate 3 from moving excessively and causing the ball nut to collide with the bearing seat.

[0029] The printing platform is equipped with linear motor modules on both the left and right sides. One side of the mounting plate 1 is fixedly connected to one side of the slide of the linear motor module so as to drive the mounting plate 1 to move back and forth on the left and right sides of the printing platform.

[0030] The support plate 3 and the movable crossbeam 4 are connected by fixed angle brackets, and the fixed angle brackets are fixedly connected to the support plate 3 and the movable crossbeam 4 by fastening screws, which can achieve a stable connection between the support plate 3 and the movable crossbeam 4 and the connection strength is high.

[0031] The working principle of this embodiment is as follows: When it is necessary to adjust the height of the moving crossbeam 4, the geared motor is connected to an external power supply and control unit. The geared motor is started to drive the lead screw 2 to rotate. The lead screw 2 drives the support plate 3 to move through the ball nut. The support plate 3 drives the moving crossbeam 4 to move up and down, thereby realizing the height adjustment of the moving crossbeam 4. In the working process of the lead screw 2, the lead screw 2 only rotates and does not move. Compared with the existing technology of "fixed ball nut, rotating and moving lead screw", it has the characteristics of less inertia, higher precision and longer life. At the same time, it also has higher acceleration and dynamic response speed, which can be better suited for large-format inkjet printing scenarios.

[0032] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A printer with an automatically lifting beam, comprising a frame, a printing head, a moving beam (4) and a printing platform, both sides of the printing platform are provided with lifting assemblies for driving the moving beam (4) to move up and down, characterized in that: The lifting assembly includes a mounting plate (1), one side of the mounting plate (1) is vertically installed with a lead screw (2) through a bearing block, one side of the mounting plate (1) is vertically and slidingly connected with a support plate (3), the top end of the support plate (3) is fixedly connected with the bottom end of a moving cross beam (4); the lead screw (2) is connected with a ball nut, the ball nut is arranged between the mounting plate (1) and the support plate (3) and is fixedly connected with the support plate (3) through a fastener; the bottom end of the mounting plate (1) is fixedly installed with a driving member (5) on one side, for driving the lead screw (2) to rotate.

2. The printer with automatic lifting of the beam according to claim 1, characterized in that: The top end of the mounting plate (1) is fixedly installed with two groups of sliding blocks (6), and the two groups of sliding blocks (6) are symmetrically arranged on the two sides of the lead screw (2); one side of the support plate (3) is fixedly installed with two groups of guide rails (7), and the two groups of guide rails (7) are respectively slidingly connected with the sliding blocks (6).

3. The printer of claim 1 wherein: The driving member (5) is a speed reducer motor, and the motor shaft of the speed reducer motor is fixedly connected with one end of the lead screw (2) through a shaft coupling.

4. The printer of claim 1 wherein: The mounting plate (1) is fixedly installed with groove photoelectric switches (8) on the upper and lower ends of one side, and the support plate (3) is fixedly installed with two groups of contact pieces (9) on one side corresponding to the two groups of groove photoelectric switches (8) through fasteners.

5. The printer of claim 1 wherein: The left and right sides of the printing platform are both installed with linear motor modules, and one side of the mounting plate (1) is fixedly connected with one side of the slide table of the linear motor module.

6. The printer with automatic lifting of the beam according to claim 1, characterized in that: The support plate (3) and the moving cross beam (4) are connected through fixed angle brackets, and the fixed angle brackets are fixedly connected with the support plate (3) and the moving cross beam (4) through fastening screws respectively.

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