Servo depth adjusting mechanism of elevator

Abstract

The utility model discloses an elevator servo depth adjusting mechanism which comprises a cross beam and a slotting cutter, driving connecting rods are arranged on the two sides of the cross beam, rotating wheel shafts are arranged on the two sides of the bottom of a rack, the driving connecting rods are hinged to the rotating wheel shafts, lead screw elevators are further arranged on the two sides of the upper end of the cross beam, and threaded rods are arranged at the upper ends of the driving connecting rods. The threaded rods are connected with the lead screw lifters, positioning blocks are further arranged on the inner walls of the two sides of the rack, the driving connecting rods penetrate through the positioning blocks, and sliding assemblies are arranged in the positioning blocks. The position of the cross beam is adjusted up and down through the lead screw elevator, so that electric adjustment of the cross beam can be achieved, the lead screw elevator rotates synchronously, accuracy of adjustment work is guaranteed, errors are prevented, smoothness of the driving connecting rod during up-down movement can be guaranteed due to the fact that the sliding assembly is arranged in the positioning block, and the service life of the driving connecting rod is prolonged. And the situation of blocking is avoided, the safety and stability of carton processing production are improved, and great convenience is brought to carton processing work.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery, in particular to a servo depth adjustment mechanism for an elevator. Background Art

[0002] Packing boxes are a common packaging tool in our daily life. When making them, carton forming machines are needed for processing. Among them, creasing and slotting are an important process in the processing of packaging cartons. The equipment mainly controls the crossbeam to move up and down, and sets creasing lines and slotting knives on the crossbeam. By setting driving links at both ends of the crossbeam and connecting the eccentric wheel seat at the lower end of the driving link, when the eccentric wheel seat is driven by the motor to rotate, the driving link can be controlled to make up and down reciprocating motion, thereby driving the crossbeam and the creasing lines and slotting knives thereon to make up and down motion with a frequency. As the crossbeam moves up and down, the surface of the carton can be processed. In order to ensure that the crossbeam can move straight up and down, the position of the driving link needs to be fixed by a positioning block, so that the driving link can only make up and down reciprocating motion. Due to different processing requirements, the depth of the indentation and the notch on the surface of the carton needs to be adjusted. In this way, the initial The initial position, at this stage, for adjusting the position of the beam, the adjusting nut is generally used to adjust the position of the beam, that is, an adjusting nut is set below the connection between the beam and the driving connecting rod, and the adjusting nut can be turned to press the beam for fine-tuning up and down. However, this adjustment method requires manual adjustment by the staff, which is very inconvenient to operate. When the driving connecting rods on both sides are adjusted, it is difficult to ensure that the adjustment work on both sides is carried out synchronously, which is also prone to adjustment errors. In order to avoid this situation, there is currently an electric adjustment method, which drives the entire beam up and down through a lifting mechanism. Regardless of the adjustment method, the driving connecting rod needs to be fixed in place by a positioning block. Since the driving connecting rod needs to continuously slide up and down in the positioning block during operation, it is necessary to ensure that the driving connecting rod slides smoothly in the positioning block. Once it is stuck, it is easy to cause damage to the equipment. Therefore, how to ensure the smooth sliding of the driving connecting rod is the top priority for ensuring safe production work. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a servo depth adjustment mechanism for an elevator, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a lift servo depth adjustment mechanism includes a crossbeam arranged in a frame and a slotting knife arranged at the lower end of the crossbeam, a driving connecting rod is arranged on both sides of the crossbeam, and a rotating wheel axle is arranged on both sides of the bottom of the frame, the lower end of the driving connecting rod is hinged to the rotating wheel axle, and a synchronously driven screw lift is also arranged on both sides of the upper end of the crossbeam, and a threaded rod is arranged at the upper end of the driving connecting rod, and the threaded rod is connected to the turbine thread in the screw lift, and there are also positioning blocks on the inner walls on both sides of the frame, and the driving connecting rod passes through the positioning blocks, and the upper and lower ends of the positioning block are also provided with sliding components to prevent the driving connecting rod from sliding and getting stuck.

[0005] Furthermore, four sliding assemblies are provided, and the four sliding assemblies are respectively fitted with the four side walls of the driving connecting rod.

[0006] Furthermore, the sliding assembly includes a bearing rod, on which a bearing is sleeved, and the upper and lower ends of the positioning block are respectively provided with a first mounting groove for accommodating the bearing rod and a second mounting groove for accommodating the bearing, and the two mounting grooves are connected to each other.

[0007] Furthermore, the positioning block is provided with cover plates at its upper and lower ends, the cover plates are fixedly connected to the positioning block via screws, and the cover plates are provided with avoidance grooves for facilitating exposure of the bearing.

[0008] Furthermore, the rotating wheel shaft includes an eccentric bearing and a sleeve sleeved on the outside of the eccentric bearing, the upper end of the sleeve is provided with a connecting block, the lower end of the driving connecting rod is provided with a connecting head, and the connecting head and the connecting block are hinged by a pin shaft.

[0009] Furthermore, a transmission shaft is provided at the lower end of the frame, and the transmission shaft passes through the eccentric holes of the eccentric bearings on both sides, and one end of the transmission shaft is connected to the motor.

[0010] Furthermore, the worm of the screw lift is provided with a linkage shaft, the crossbeam is provided with a steering box on its top, the linkage shaft is connected to the steering box, and a servo motor is also provided on the steering box.

[0011] Furthermore, two positioning blocks are respectively provided on both sides of the frame, and the two positioning blocks are evenly distributed on the inner wall of the frame along the vertical direction.

[0012] The above technical solution of the present invention has the following beneficial effects: the present invention adjusts the position of the beam up and down through a screw lift, so that the electric adjustment of the beam can be realized, and the screw lift rotates synchronously, which ensures the accuracy of the adjustment work and prevents the occurrence of errors. The setting of the sliding component in the positioning block can also ensure the smoothness of the driving connecting rod when it moves up and down, avoids the occurrence of jamming, improves the safety and stability of carton processing and production, and brings great convenience to carton processing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the planar structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the planar structure of the top of the positioning block according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the planar structure of the cover plate according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1-3 As shown, the elevator servo depth adjustment mechanism described in this embodiment includes a beam 2 arranged in a frame 1 and a slotting knife 3 arranged at the lower end of the beam 2. Drive links 4 are arranged on both sides of the beam 2, and rotating wheel axles 5 are arranged on both sides of the bottom of the frame 1. The lower end of the drive link 4 is hinged to the rotating wheel axle 5. Synchronously driven screw elevators 6 are also arranged on both sides of the upper end of the beam 2. A threaded rod 7 is provided at the upper end of the drive link 4. The threaded rod 7 is connected to the turbine thread in the screw elevator 6. There are also positioning blocks 8 on the inner walls on both sides of the frame 1. The drive link 4 passes through the positioning block 8. The upper and lower ends of the positioning block 8 are also provided with sliding components 9 to prevent the drive link 4 from sliding and getting stuck.

[0019] Four sliding assemblies 9 are provided, and the four sliding assemblies 9 are respectively arranged to fit with the four side walls of the driving connecting rod 4 .

[0020] The sliding assembly 9 includes a bearing rod 9a, on which a bearing 9b is sleeved. The upper and lower ends of the positioning block 8 are respectively provided with a first mounting groove 8a for accommodating the bearing rod 9a and a second mounting groove 8b for accommodating the bearing 9b, and the two mounting grooves are connected to each other.

[0021] The positioning block 8 is provided with cover plates 10 at its upper and lower ends. The cover plates 10 are fixedly connected to the positioning block 8 by screws. The cover plates 10 are provided with avoidance grooves 10a for facilitating the exposure of the bearing 9b.

[0022] When installing the sliding assembly 9, first, the bearing 9b is sleeved on the bearing rod 9a, and then the assembled sliding assembly 9 is installed in the installation groove of the positioning block 8, the bearing 9b is placed in the second installation groove 8b, and the bearing rod 9a is placed in the first installation groove 8a. The bearing 9b can rotate in the second installation groove 8b, and one side of the bearing 9b extends into the through-hole in the middle of the positioning block 8. Then, the cover plate 10 is buckled on the end of the positioning block 8. After the cover plate 10 is fixed and installed, the bearing 9b extends out at the avoidance groove 10a, and then the driving link 4 is inserted into the through-hole in the middle of the positioning block 8. The side wall of the bearing 9b is fitted with the side wall of the driving link 4. When the driving link 4 moves up and down, the bearing 9b will rotate along the side wall of the driving link 4. The setting of the bearing 9b causes the driving link 4 and the positioning block 8 to generate rolling friction, thereby reducing friction and ensuring the smooth up and down movement of the driving link 4.

[0023] The rotating wheel shaft 5 includes an eccentric bearing and a sleeve mounted on the outside of the eccentric bearing. A connecting block 11 is provided at the upper end of the sleeve. A connecting head 12 is provided at the lower end of the driving connecting rod 4. The connecting head 12 and the connecting block 11 are hinged through a pin shaft, thereby realizing the hinge connection between the connecting head 12 and the connecting block 11.

[0024] A transmission shaft 13 is also provided at the lower end of the frame 1. The transmission shaft 13 passes through the eccentric holes of the eccentric bearings on both sides. One end of the transmission shaft 13 is connected to the motor (not shown in the figure). When the motor is started, it will drive the transmission shaft 13 to rotate, and the eccentric bearing will rotate inside the sleeve. The transmission shaft 13 will drive the eccentric bearing to rotate inside the sleeve. Due to the effect of eccentricity, as the transmission shaft 13 rotates, the sleeve will make regular up and down movements, and then drive the driving connecting rod 4 to make up and down movements in the positioning block 8.

[0025] The worm of the screw elevator 6 is provided with a linkage shaft 14, and the crossbeam 2 is also provided with a steering box 15 at its top. The linkage shaft 14 is connected to the steering box 15, and a servo motor 16 is also provided on the steering box 15. When the servo motor 16 is started, the two linkage shafts 14 can be rotated, thereby driving the worm on the screw elevator 6 to rotate. The worm and the turbine in the screw elevator 6 engage with each other, so that the turbine rotates in the screw elevator 6, and the threaded rod 7 at the upper end of the driving connecting rod 4 is connected to the turbine in the screw elevator 6. The threaded rod 7 is connected to the threaded hole at the center of the turbine. As the turbine rotates, the turbine also rotates along the threaded rod 7. Since the position of the driving connecting rod 4 is fixed, the rotation of the turbine will drive the screw elevator 6 to move up and down along the threaded rod 7, and the screw elevator 6 is fixedly mounted on the crossbeam 2, so it will also drive the crossbeam 2 to move up and down in the frame 1, thereby realizing the up and down adjustment of the position of the slotting knife 3.

[0026] Two positioning blocks 8 are respectively provided on both sides of the frame 1 , and the two positioning blocks 8 are evenly distributed on the inner wall of the frame 1 along the vertical direction.

[0027] The working principle of the present invention is as follows: according to the thickness of the carton, the servo motor 16 can be controlled to start, thereby causing the screw elevators 6 on both sides of the beam 2 to rotate, so that the initial height of the beam 2 and the slotting knife 3 can be adjusted, and then the motor is started to control the transmission shaft 13 to rotate, and the transmission shaft 13 will rotate with the eccentric bearing in the rotating wheel shaft 5, thereby controlling the sleeve, the driving connecting rod 4 and the beam 2 to move up and down, and the slotting knife 3 will also move up and down with the beam 3, thereby completing the slotting work on the cardboard.

[0028] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. The elevator servo depth adjustment mechanism is characterized by: The present invention relates to a sliding mechanism which is adapted to move the drive link relative to the engine, and wherein the sliding mechanism is adapted to move the drive link relative to the engine. The sliding mechanism comprises a through-hole, a through-hole, and a gear. The through-hole is adapted to move the drive link relative to the engine. The through-hole is adapted to move the drive link relative to the engine.

2. The elevator servo depth adjustment mechanism according to claim 1, characterized in that: There are four sliding assemblies, and the four sliding assemblies are respectively arranged to fit the four side walls of the driving connecting rod.

3. The elevator servo depth adjustment mechanism according to claim 2, characterized in that: The sliding assembly includes a bearing rod, on which a bearing is sleeved. The upper and lower ends of the positioning block are respectively provided with a first mounting groove for accommodating the bearing rod and a second mounting groove for accommodating the bearing, and the two mounting grooves are connected to each other.

4. The elevator servo depth adjustment mechanism according to claim 3, characterized in that: The positioning block is provided with cover plates at its upper and lower ends. The cover plates are fixedly connected to the positioning block via screws. The cover plates are provided with avoidance grooves for facilitating exposure of the bearing.

5. The elevator servo depth adjustment mechanism according to claim 1, characterized in that: The rotating wheel shaft includes an eccentric bearing and a sleeve sleeved on the outside of the eccentric bearing, the upper end of the sleeve is provided with a connecting block, the lower end of the driving connecting rod is provided with a connecting head, and the connecting head and the connecting block are hinged by a pin shaft.

6. The elevator servo depth adjustment mechanism according to claim 5, characterized in that: A transmission shaft is also provided at the lower end of the frame. The transmission shaft passes through the eccentric holes of the eccentric bearings on both sides. One end of the transmission shaft is connected to the motor.

7. The elevator servo depth adjustment mechanism according to claim 1, characterized in that: The worm of the screw lift is provided with a linkage shaft rod, the crossbeam is further provided with a steering box at the top thereof, the linkage shaft rod is connected to the steering box, and a servo motor is further provided on the steering box.

8. The elevator servo depth adjustment mechanism according to claim 1, characterized in that: Two positioning blocks are respectively arranged on both sides of the frame, and the two positioning blocks are evenly distributed on the inner wall of the frame along the vertical direction.

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