Single-person operation printing roller lifting device of roll paper flexographic printing machine

Abstract

The utility model relates to a roll paper flexographic printing machine one-man operation printing roller lifting device which comprises a lifting structure and a lifting mechanism which are used for lifting a printing roller, the lifting structure comprises a machine frame and two special fixing plates symmetrically arranged at the two ends of the machine frame, and studs are arranged on the two special fixing plates. The hoisting mechanism comprises two transverse plates which are symmetrically arranged, a sliding seat which is arranged between the two transverse plates, a driving mechanism which is fixedly mounted outside one of the transverse plates, and an electric lead screw which is mounted between the two transverse plates through a bearing and penetrates through the sliding seat; the electric turntable is fixedly mounted on the upper surface of the sliding seat; and the electric push rod is arranged outside the other transverse plate. According to the single-person operation printing roller lifting device of the roll paper flexo printing machine, the special lifting connecting plates are connected with the two ends of the printing roller, and after the printing roller is lifted to leave a station, the swing range of the printing roller is reduced, so that the printing roller and other parts can be better protected, and the advantages of being high in practicability, convenient to lift the printing roller and the like are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a single-person-operated printing roller lifting device for a web-based flexographic printing machine. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate, mounted on the printing press, and then the ink is applied to the place where the text and image are on the printing plate by manual or printing machine, and then directly or indirectly transferred to paper or other substrates, thereby replicating the same printed product as the printing plate. Printing presses are used according to their functions, resulting in many types of printing presses. For example, a web printing press is a printing press that uses web paper as the printing material. The main type is a web printing press that uses offset printing.

[0003] After a long period of use, the web printing press needs to be disassembled and assembled, which requires the use of a printing roller lifting device. The existing printing roller lifting device of the same type of web flexographic printing press adopts a multi-link lifting method similar to a crane. The device is large in size, has high spatial distance requirements, consumes a lot of materials, and can only move forward and backward, not rotate. After the printing roller is lifted and moved out of the workstation, two people are still required to lift the printing roller out of the machine. Since the printing part and the slitting part of the equipment are fixed with the main drive shaft blocking, the auxiliary printing roller bracket cannot be used for lifting, which increases the physical effort of the operator. Therefore, a single-operated printing roller lifting device for a web flexographic printing press is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a single-operated printing roller lifting device for a web-fed flexographic printing machine, which has the advantages of strong practicality and convenient lifting of the printing roller, and solves the problem that the existing printing roller lifting devices for the same type of web-fed flexographic printing machines are not only cumbersome to operate but also inconvenient for operators to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-operated printing roller lifting device for a web-fed flexographic printing machine, comprising a lifting structure and a lifting mechanism for lifting the printing roller, the lifting structure comprising a frame and two special fixing plates symmetrically arranged at both ends of the frame, and studs are arranged on the two special fixing plates;

[0006] The lifting mechanism includes two symmetrically arranged horizontal plates, a slide seat arranged between the two horizontal plates, a driving mechanism fixedly installed on the outside of one of the horizontal plates, an electric lead screw installed between the two horizontal plates through a bearing and passing through the inside of the slide seat, an electric turntable fixedly installed on the upper surface of the slide seat, and an electric push rod arranged on the outside of the other horizontal plate.

[0007] Furthermore, connecting blocks are fixedly installed at both ends of the frame by means of locking bolts, and mounting pins fixed to the connecting blocks are installed inside the two special fixing plates.

[0008] Furthermore, a mounting frame fixed to the frame is fixedly mounted on the output end of the electric push rod, and the frame and the mounting frame are fixed by multiple sets of bolts.

[0009] Furthermore, a mounting arm is fixedly mounted on the upper surface of the electric turntable, and the electric push rod is fixedly mounted on an end of the mounting arm away from the electric turntable.

[0010] Furthermore, two symmetrically arranged linear guide rails are fixedly installed between the two transverse plates, and the slide seat is slidably installed between the two linear guide rails.

[0011] Furthermore, one end of the electric lead screw is fixed to the output shaft of the driving mechanism through a coupling, and the slide seat is threadedly connected to the electric lead screw.

[0012] Furthermore, slide rails are installed on both sides of the electric push rod close to the mounting frame, and both sides of the mounting frame close to the electric push rod are slidably connected to the slide rails respectively.

[0013] Compared with the prior art, the utility model provides a single-operated printing roller lifting device for a web-fed flexographic printing machine, which has the following beneficial effects:

[0014] 1. The single-operated printing roller lifting device of the web-fed flexographic printing machine has a small size, low material consumption, and low space requirement. It can be operated by a single person to lift and rotate the printing roller to the outside of the machine, and stably place the printing roller on a special printing roller bracket, saving labor, reducing the physical effort of the operator, and reducing the risk of injuring people by lifting the printing roller. A special lifting connecting plate is connected to both ends of the printing roller. After the printing roller is lifted away from the workstation, the swing range of the printing roller is reduced, so that the printing roller and other components can be better protected, thereby achieving the advantages of strong practicality and easy lifting of the printing roller, etc., solving the problem that the existing printing roller lifting device of the same type of web-fed flexographic printing machine is not only troublesome to operate, but also inconvenient for operators to use.

[0015] 2. The single-operated printing roller lifting device of the web-fed flexographic printing machine can achieve linear displacement of the printing roller through the installation of two linear guide rails, thereby improving the adjustment effect. The setting of the bearing enables the electric lead screw to rotate stably, thereby enhancing the adjustment stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a top view of the structure of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the structure of the utility model;

[0019] Figure 4 For this utility model Figure 1 A is a schematic diagram of the enlarged structure shown;

[0020] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of B shown.

[0021] In the figure: 1. frame; 2. special fixing plate; 3. stud; 4. connecting block; 5. cross plate; 6. linear guide; 7. slide; 8. driving mechanism; 9. electric lead screw; 10. mounting arm; 11. electric turntable; 12. electric push rod; 13. mounting frame. 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 1-5 A single-operated printing roller lifting device for a web-fed flexographic printing machine includes a lifting structure and a lifting mechanism for lifting the printing roller. The lifting structure includes a frame 1 and two special fixing plates 2 symmetrically arranged at both ends of the frame 1, and studs 3 are arranged on the two special fixing plates 2; connecting blocks 4 are fixedly installed at both ends of the frame 1 by locking bolts, and mounting pins fixed to the connecting blocks 4 are installed inside the two special fixing plates 2.

[0024] In order to facilitate the lifting and movement of the printing roller, in this embodiment, the lifting mechanism includes two symmetrically arranged horizontal plates 5, a slide 7 arranged between the two horizontal plates 5, a driving mechanism 8 fixedly installed on the outside of one of the horizontal plates 5, an electric lead screw 9 installed between the two horizontal plates 5 through a bearing and passing through the inside of the slide 7, an electric turntable 11 fixedly installed on the upper surface of the slide 7, and an electric push rod 12 arranged on the outside of the other horizontal plate 5. A mounting frame 13 fixed to the frame 1 is fixedly installed on the output end of the electric push rod 12, and the frame 1 and the mounting frame 13 are fixed by multiple groups of bolts. A mounting arm 10 is fixedly installed on the upper surface of the electric turntable 11, and the electric push rod 12 is fixedly installed on the end of the mounting arm 10 away from the electric turntable 11. The setting of the bearing allows the electric lead screw 9 to rotate stably, thereby enhancing the adjustment stability.

[0025] Among them, one end of the electric screw 9 is fixed to the output shaft of the driving mechanism 8 through a coupling, and the slide seat 7 is threadedly connected to the electric screw 9. Slide rails are installed on both sides of the electric push rod 12 close to the mounting frame 13, and the mounting frame 13 is slidably connected to the slide rails on both sides close to the electric push rod 12. Through the setting of the slide rails, the electric push rod 12 can stably adjust the lifting and lowering of the frame 1, so that the printing roller can be stably lifted and lowered.

[0026] When the present embodiment is in use, the two ends of the printing roller are connected by a special fixing plate 2 and a stud 3, and then the electric lead screw 9 is driven by the driving mechanism 8 to realize the forward and backward movement of the printing roller, and then the rise and fall of the printing roller is realized by the electric push rod 12. At the same time, a rotatable electric turntable 11 is installed at the center position, which can rotate and adjust the printing roller. The device is small in size, consumes less materials, and has low space requirements. It can realize single-person operation to lift and rotate the printing roller to the outside of the machine, and stably place the printing roller on the special printing roller bracket, which saves labor, reduces the physical effort of the operator, and reduces the risk of injuring people by lifting the printing roller. A special lifting connecting plate is used to connect the two ends of the printing roller. After the printing roller is lifted and leaves the workstation, the swing range of the printing roller is reduced, so that the printing roller and other components can be better protected, thereby achieving the advantages of strong practicality and easy lifting of the printing roller, etc., solving the problem that the existing printing roller lifting device of the same type of web flexographic printing machine is not only troublesome to operate, but also inconvenient for operators to use.

[0027] In order to make the printing roller move stably, two symmetrically arranged linear guide rails 6 are fixedly installed between the two transverse plates 5, and the slide 7 is slidably installed between the two linear guide rails 6. Through the installation of the two linear guide rails 6, the printing roller can be linearly displaced to improve the adjustment effect, and through the setting of the bearing, the electric lead screw 9 can rotate stably to enhance the adjustment stability.

[0028] The working principle of the above embodiment is:

[0029] When in use, first connect the two ends of the printing roller through a special fixing plate 2 and a stud 3, then drive the electric screw 9 through the driving mechanism 8 to realize the forward and backward movement of the printing roller, and then use the electric push rod 12 to realize the rise and fall of the printing roller. At the same time, a rotatable electric turntable 11 is installed at the center position to adjust the rotation of the printing roller.

[0030] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0031] 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.

[0032] 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 single-operator printing roller lifting device for a web-fed flexographic printing press, characterized in that: It comprises a lifting structure and a lifting mechanism for lifting a printing roller, wherein the lifting structure comprises a frame (1) and two special fixing plates (2) symmetrically arranged at two ends of the frame (1), and studs (3) are arranged on the two special fixing plates (2); The lifting mechanism comprises two symmetrically arranged transverse plates (5), a slide seat (7) arranged between the two transverse plates (5), a driving mechanism (8) fixedly mounted on the outside of one of the transverse plates (5), an electric lead screw (9) mounted between the two transverse plates (5) via a bearing and passing through the inside of the slide seat (7), an electric turntable (11) fixedly mounted on the upper surface of the slide seat (7), and an electric push rod (12) arranged on the outside of the other transverse plate (5).

2. The one-person-operated printing roller lifting device for a web-fed flexographic printing press according to claim 1 is characterized in that: Connecting blocks (4) are fixedly mounted on both ends of the frame (1) via locking bolts, and mounting pins fixed to the connecting blocks (4) are mounted inside the two dedicated fixing plates (2).

3. The one-person-operated printing roller lifting device for a web-fed flexographic printing press according to claim 1 is characterized in that: A mounting frame (13) fixed to the frame (1) is fixedly mounted on the output end of the electric push rod (12); the frame (1) and the mounting frame (13) are fixed by multiple sets of bolts.

4. The one-person-operated printing roller lifting device for a web-fed flexographic printing press according to claim 1 is characterized in that: A mounting arm (10) is fixedly mounted on the upper surface of the electric turntable (11), and the electric push rod (12) is fixedly mounted on an end of the mounting arm (10) away from the electric turntable (11).

5. The one-person-operated printing roller lifting device for a web-fed flexographic printing press according to claim 1 is characterized in that: Two symmetrically arranged linear guide rails (6) are fixedly installed between the two transverse plates (5), and the slide seat (7) is slidably installed between the two linear guide rails (6).

6. The one-person-operated printing roller lifting device for a web-fed flexographic printing press according to claim 1, characterized in that: One end of the electric lead screw (9) is fixed to the output shaft of the driving mechanism (8) via a coupling, and the slide seat (7) is threadedly connected to the electric lead screw (9).

7. The one-person-operated printing roller lifting device for a web-fed flexographic printing press according to claim 1, characterized in that: Slide rails are installed on both sides of the electric push rod (12) close to the mounting frame (13), and both sides of the mounting frame (13) close to the electric push rod (12) are slidably connected to the slide rails respectively.

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