Lifting mechanism for printing press

Abstract

The utility model discloses a kind of lifting mechanisms for printing machine, it is related to printing machine technical field, including two mounting brackets, two the motor cam components are set on mutually close side of mounting bracket, and two slide rails are fixedly connected with mirror symmetry respectively at mounting bracket bottom two ends;Two motor cam components ends are symmetrically provided with two pull rods;Two the slide rail mutually close side is provided with slide bar, and rack is provided in slide rail inner side;Two push rod clamping block components are respectively provided in the inner side of slide bar two ends;The push rod clamping block component includes electric push rod;Electric push rod one end is fixedly connected with clamping block mounting block;Multiple trapezoidal clamping blocks are fixedly connected with vertical even interval on the clamping block mounting block.The utility model, by the above structure, can avoid wear and tear influence, stable lifting slide bar, and fixedly keep stable, guarantee the precision and stability of lifting mechanism, avoid affecting overall performance.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, specifically to a lifting mechanism for a printing press. Background Technology

[0002] Lifting mechanisms in printing presses are widely used in various printing equipment, such as offset printing presses, gravure printing presses, flexographic printing presses, and letterpress printing presses. They are used for lifting and lowering paper, adjusting cylinders, and lifting operations during the die-cutting process. The specific form and structure of the lifting mechanism may vary in different printing processes and equipment, but they are all designed to meet the lifting requirements during the printing process.

[0003] To ensure high precision and stability, existing printing presses typically employ lead screw lifting mechanisms for their lifting systems. However, these mechanisms are prone to wear after prolonged use in conjunction with other components, particularly at the frequently moving contact point between the lead screw and the nut. This wear leads to decreased precision and stability, threatening the smooth operation of the equipment and impacting overall performance. Therefore, we propose a new lifting mechanism for printing presses to address the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting mechanism for printing presses, in order to ensure high precision and high stability, the existing lifting mechanisms for printing presses mentioned in the background art usually adopt a lead screw lifting mechanism. However, after long-term use in conjunction with other components, this mechanism is prone to wear, especially at the joint between the lead screw and the nut where frequent movement occurs. This will cause a decrease in precision and stability, thereby threatening the smooth operation of the equipment and affecting the overall performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting mechanism for a printing press includes two mounting frames. A motor cam component is provided on one side of the two mounting frames close to each other. Two slide rails are fixedly connected to the bottom ends of the mounting frames in a mirror-symmetrical manner. Two pull rods are symmetrically provided at both ends of the motor cam component. A slide rod is provided on one side of the two slide rails close to each other. A rack is provided on the inner side of the slide rail. Two push rod locking components are provided at both ends of the inner side of the slide rod.

[0007] The push rod locking block component includes an electric push rod, one end of which is fixedly connected to a locking block mounting block, and multiple trapezoidal locking blocks are fixedly connected vertically and evenly at intervals on the locking block mounting block.

[0008] Furthermore, the motor cam component includes a motor, and the output end of the motor is fixedly connected to a camshaft through the mounting bracket. The motor is fixedly connected to the mounting bracket, and the two ends of the camshaft are rotatably connected to two mounting brackets respectively.

[0009] Furthermore, the slide rail is provided with a slide rod mounting groove, and the slide rod mounting groove is provided with a rack mounting groove. One end of each of the two pull rods is rotatably connected to both ends of the camshaft.

[0010] Furthermore, two sliding grooves are symmetrically arranged at both ends of the inner side of the slide rod, the top of the slide rod is rotatably connected to the other end of the pull rod, and both ends of the slide rod are slidably connected to two slide rails respectively through two slide rod mounting grooves.

[0011] Furthermore, the rack includes a toothed block mounting plate, on one side of which multiple conical toothed blocks are fixedly connected at uniform intervals. The toothed block mounting plate is fixedly connected to the slide rail through the rack mounting groove.

[0012] Furthermore, the other end of the electric push rod is fixedly connected to the slide rod inside the slide groove, the locking block is slidably connected to the slide rod inside the slide groove, and the multiple trapezoidal locking blocks are respectively movably locked with the multiple conical tooth blocks.

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

[0014] This invention uses a motor cam component to drive two pull rods, which in turn drive two slide rods to slide along a slide groove. Then, push rod locking components at both ends of the inner side of the slide rods can be movably engaged with the racks on both sides to fix the slide rods. The trapezoidal locking blocks on the push rod locking components and the conical teeth on the racks are not affected by wear and can be stably engaged through the inclined surfaces to fix the slide rods. This facilitates the smooth and precise lifting and lowering of paper and printing cylinders, ensuring equipment performance. Attached Figure Description

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

[0016] Figure 2 This is a side sectional view of the installation structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the motor cam component mounting structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the push rod locking block component of this utility model;

[0019] Reference numerals: 1. Mounting bracket; 2. Motor cam assembly; 201. Motor; 202. Camshaft; 3. Slide rail; 301. Slide rod mounting groove; 302. Rack mounting groove; 4. Tie rod; 5. Slide rod; 501. Slide groove; 6. Rack; 601. Gear block mounting plate; 602. Conical gear block; 7. Push rod locking block assembly; 701. Electric push rod; 702. Locking block mounting block; 703. Trapezoidal locking block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a lifting mechanism for a printing machine, including two mounting frames 1, a motor cam component 2 is provided on one side close to each other on the two mounting frames 1, two slide rails 3 are fixedly connected to the bottom ends of the mounting frames 1 in a mirror symmetrical manner, two pull rods 4 are symmetrically arranged at both ends of the motor cam component 2, a slide rod 5 is provided on one side close to each other on the two slide rails 3, a rack 6 is provided on the inner side of the slide rail 3, and two push rod blocking components 7 are provided at both ends of the inner side of the slide rod 5.

[0022] The push rod locking block component 7 includes an electric push rod 701, one end of which is fixedly connected to a locking block mounting block 702, and multiple trapezoidal locking blocks 703 are fixedly connected vertically and evenly at intervals on the locking block mounting block 702.

[0023] The motor cam assembly 2 includes a motor 201. The output end of the motor 201 passes through the mounting bracket 1 and is fixedly connected to a camshaft 202. The motor 201 is fixedly connected to the mounting bracket 1, and both ends of the camshaft 202 are rotatably connected to two mounting brackets 1 respectively. In this example, the motor cam assembly 2 can drive the bottom slide rods 5 of the two pull rods 4 to move up and down.

[0024] The slide rail 3 has a slide rod mounting groove 301 inside, and a rack mounting groove 302 inside the slide rod mounting groove 301. One end of each of the two pull rods 4 is rotatably connected to both ends of the camshaft 202. In this example, by setting the slide rail 3, the slide rod 5 can slide stably along the slide rod mounting groove 301.

[0025] Two symmetrical sliding grooves 501 are provided at both ends of the inner side of the slide rod 5. The top of the slide rod 5 is rotatably connected to the other end of the pull rod 4. The two ends of the slide rod 5 are slidably connected to the two slide rails 3 respectively through the two slide rod mounting grooves 301. In this example, by setting the slide rod 5, it is convenient to install components such as printing cylinders and to perform smooth lifting and lowering, ensuring the performance of the equipment.

[0026] The rack 6 includes a toothed block mounting plate 601, on one side of which multiple conical toothed blocks 602 are fixedly connected at uniform intervals. The toothed block mounting plate 601 is fixedly connected to the slide rail 3 through the rack mounting groove 302. In this example, by setting the rack 6, the push rod locking block component 7 can be easily locked, thereby fixing the slide rod 5.

[0027] The other end of the electric push rod 701 is fixedly connected to the slide rod 5 inside the slide groove 501. The locking block 702 is slidably connected to the slide rod 5 inside the slide groove 501. Multiple trapezoidal locking blocks 703 are respectively movably locked with multiple conical toothed blocks 602.

[0028] Working principle: The motor 201 drives the camshaft 202 to rotate, which in turn drives the pull rods 4 at both ends of the camshaft 202, and further drives the slide rod 5 at the bottom of the pull rod 4 to slide along the slide rod mounting groove 301 of the slide rail 3. When the slide rod 5 slides to a suitable height, the two electric push rods 701 inside the slide grooves 501 at both ends of the slide rod 5 push the two locking block mounting blocks 702 respectively, so that multiple trapezoidal locking blocks 703 contact the inclined surfaces of multiple conical tooth blocks 602 through the rack mounting groove 302. The electric push rods 701 push the trapezoidal locking blocks 703 tightly, so that the trapezoidal locking blocks 703 and the conical tooth blocks 602 fit tightly together, thereby fixing the slide rod 5.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism for a printing press, characterized in that: It includes two mounting brackets (1), and motor cam components (2) are provided on one side close to each other. Two slide rails (3) are fixedly connected to the bottom ends of the mounting brackets (1) in a mirror-symmetrical manner. Two pull rods (4) are symmetrically arranged at both ends of the motor cam components (2). Slide rods (5) are provided on one side close to each other of the two slide rails (3). A rack (6) is provided on the inner side of the slide rails (3). Two push rod block components (7) are provided at both ends of the inner side of the slide rods (5). The push rod locking block component (7) includes an electric push rod (701), one end of which is fixedly connected to a locking block mounting block (702), and multiple trapezoidal locking blocks (703) are fixedly connected vertically and evenly at intervals on the locking block mounting block (702).

2. The lifting mechanism for a printing press according to claim 1, characterized in that: The motor cam component (2) includes a motor (201), the output end of the motor (201) is fixedly connected to a camshaft (202) through the mounting bracket (1), the motor (201) is fixedly connected to the mounting bracket (1), and the two ends of the camshaft (202) are rotatably connected to two mounting brackets (1) respectively.

3. The lifting mechanism for a printing press according to claim 2, characterized in that: The slide rail (3) is provided with a slide rod mounting groove (301) inside, and the slide rod mounting groove (301) is provided with a rack mounting groove (302) inside. One end of the two pull rods (4) is rotatably connected to both ends of the camshaft (202).

4. The lifting mechanism for a printing press according to claim 3, characterized in that: The slide rod (5) has two symmetrical sliding grooves (501) at both ends on its inner side. The top of the slide rod (5) is rotatably connected to the other end of the pull rod (4). The two ends of the slide rod (5) are slidably connected to the two slide rails (3) respectively through the two slide rod mounting grooves (301).

5. A lifting mechanism for a printing press according to claim 4, characterized in that: The rack (6) includes a tooth block mounting plate (601), on one side of which a plurality of conical tooth blocks (602) are fixedly connected vertically and evenly, and the tooth block mounting plate (601) is fixedly connected to the slide rail (3) through the rack mounting groove (302).

6. A lifting mechanism for a printing press according to claim 5, characterized in that: The other end of the electric push rod (701) is fixedly connected to the slide rod (5) inside the slide groove (501), the locking block (702) is slidably connected to the slide rod (5) inside the slide groove (501), and the multiple trapezoidal locking blocks (703) are respectively movably locked with the multiple conical toothed blocks (602).

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