Paperboard lifting mechanism for paperboard printing

Abstract

The utility model discloses a paperboard lifting mechanism for paperboard printing, which comprises a bottom plate, and the top of the bottom plate is fixedly connected with a driving box. When the motor is adopted to drive the first threaded rod to rotate, the movable frame stably ascends or descends in the threaded direction, the supporting column moves up and down, and therefore the bearing plate is driven to achieve position adjustment in the vertical direction. By means of the structural design, the paperboard is evenly stressed in the lifting process, inclination or shaking is avoided, and the stability of the paperboard is guaranteed. When the electric cylinder pushes the sliding block to slide in the sliding groove, the connecting rod drives the bearing plate to rotate around the hinge point, the inclination angle of the bearing plate can be adjusted according to needs, paperboards can be smoothly conveyed to the surface of a conveyor, the paperboard conveying convenience and efficiency are improved, the paperboard printing efficiency is indirectly improved, and the whole lifting mechanism is compact in structure, small in occupied space and convenient to use. The device is convenient to install and maintain, is suitable for various paperboard printing production lines, and has the advantage of being good in lifting effect.

Description

Technical Field

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

[0002] When printing paperboard, the paperboard needs to be fed to the printing press. During the feeding process, a paperboard lifting mechanism is generally required to move the paperboard to the same height as the conveyor.

[0003] Utility model patent CN217708236U discloses a paperboard printing feeding device, which solves the problem of inconvenient and inefficient conveying of paperboard to the printing press due to its thickness and weight. The device places the paperboard on a support plate of a lifting section, controls the rotation of a lead screw to lift the support plate and align it with an upper belt conveyor, pushes the paperboard on the support plate to the upper belt conveyor, and then conveys the paperboard to the printing press. Although the patent has a simple structure, in actual use, the support plate cannot be tilted, requiring the operator to manually move the paperboard onto the surface of the upper belt conveyor, which consumes a lot of manpower and time, thus reducing the printing efficiency of the paperboard. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a paperboard lifting mechanism for paperboard printing, which has the advantage of good lifting effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cardboard lifting mechanism for cardboard printing, comprising a base plate, a drive box fixedly connected to the top of the base plate, a first threaded rod rotatably connected inside the drive box, a movable frame slidably connected inside the drive box, the first threaded rod being threadedly connected to the movable frame, a motor fixedly connected to the top of the drive box, the output end of the motor being fixedly connected to the first threaded rod, support columns fixedly connected to the front and back of the movable frame via brackets, a bearing plate hinged to the surface of the movable frame, the bearing plate being hinged to the support columns, a sliding groove provided on the right side of both the movable frame and the support columns, and a slider slidably connected inside the sliding groove, a connecting rod hinged to the surface of the slider, the end of the connecting rod away from the slider being hinged to the bearing plate, an electric cylinder fixedly connected to the right side of the movable frame, the output end of the electric cylinder being fixedly connected to the slider, and a round rod fixedly connected to the surface of the slider.

[0006] As a preferred embodiment of the present invention, the top of the support plate is provided with a groove, and the number of grooves is several, and the grooves are evenly distributed on the top of the support plate, and the inside of the groove is rotatably connected to a roller.

[0007] As a preferred embodiment of this utility model, the top of the support plate is provided with a slot, the number of slots is several, the slots are evenly distributed on the top of the support plate, a positioning rod is inserted into the inside of the slot, and a small ball is fixedly connected to the top of the positioning rod.

[0008] As a preferred embodiment of this utility model, a bearing is fixedly connected inside the drive box, and the outer ring of the bearing is fixedly connected to the drive box, while the inner ring of the bearing is fixedly connected to the first threaded rod.

[0009] As a preferred embodiment of this utility model, universal wheels are fixedly connected to all four sides of the bottom of the base plate, and the surface of the base plate is provided with receiving grooves, and the number of receiving grooves is four. A movable column is slidably connected inside the receiving grooves, and a second threaded rod is threadedly connected inside the movable column. A support pad is rotatably connected to the bottom of the second threaded rod, and a rotating handle is fixedly connected to the top of the second threaded rod. The universal wheels have a self-locking structure.

[0010] As a preferred embodiment of this utility model, the front and back sides of the drive box are fixedly connected with reinforcing frames, and the reinforcing frames are fixedly connected to the base plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model employs a drive box located at the top of the base plate, with a first threaded rod threadedly connected to the movable frame within the drive box. Driven by a motor, this allows for stable lifting and lowering of the movable frame. The movable frame is connected to a support column via a bracket, and the support column, together with the hinged bearing plate, forms a stable support structure. When the motor drives the first threaded rod to rotate, the movable frame smoothly rises or falls along the threaded direction, and the support column also moves up and down, thereby adjusting the vertical position of the bearing plate. This structural design ensures uniform force distribution on the cardboard during lifting, preventing tilting or swaying and guaranteeing the stability of the cardboard. Simultaneously, the sliding groove, slider, and linkage mechanism on the right side of the movable frame and support column, in conjunction with the electric cylinder, allow for adjustment of the bearing plate's tilt angle. By using a circular rod, the sliders can be connected together, allowing them to slide synchronously. When the electric cylinder pushes the slider to slide within the groove, the connecting rod drives the bearing plate to rotate around the hinge point, enabling the bearing plate to adjust its tilt angle as needed. This facilitates the smooth transport of the cardboard to the conveyor surface, improving the convenience and efficiency of cardboard transport, and indirectly increasing the efficiency of cardboard printing. Furthermore, the entire lifting mechanism has a compact structure, occupies little space, and is easy to install and maintain. It is suitable for various cardboard printing production lines and has the advantage of excellent lifting effect.

[0013] 2. This invention significantly reduces the friction between the cardboard and the carrier plate by setting several evenly distributed grooves on the top of the carrier plate and rotating rollers within these grooves. When the cardboard is placed on the carrier plate, the rollers contact the bottom of the cardboard, converting sliding friction into rolling friction. During the cardboard conveying process, the operator only needs to apply a small pushing force to allow the cardboard to slide easily on the rollers, greatly reducing the operator's workload. Simultaneously, the even distribution of the rollers ensures that the cardboard is subjected to uniform force during movement, avoiding deformation or damage caused by excessive local friction. Furthermore, the rollers' flexible rotation can adapt to cardboard of different sizes and weights, improving the equipment's versatility and applicability. This design not only improves the efficiency of cardboard conveying but also ensures the quality of the cardboard, providing a solid foundation for subsequent printing processes. Attached Figure Description

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

[0015] Figure 2 This is a bottom view of the bearing plate structure of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0018] In the diagram: 1. Base plate; 2. Drive box; 3. Movable frame; 4. Motor; 5. Support column; 6. Bearing plate; 7. Slider; 8. Electric cylinder; 9. Connecting rod; 10. Round rod; 11. Roller; 12. Slot; 13. Positioning rod; 14. Small ball; 15. Reinforcing frame; 16. Caster wheel; 17. Movable column; 18. Second threaded rod; 19. Support pad. Detailed Implementation

[0019] 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.

[0020] like Figures 1 to 4As shown, a cardboard lifting mechanism for cardboard printing includes a base plate 1. A drive box 2 is fixedly connected to the top of the base plate 1. A first threaded rod is rotatably connected inside the drive box 2. A movable frame 3 is slidably connected inside the drive box 2. The first threaded rod is threadedly connected to the movable frame 3. A motor 4 is fixedly connected to the top of the drive box 2. The output end of the motor 4 is fixedly connected to the first threaded rod. Support columns 5 are fixedly connected to the front and back of the movable frame 3 via brackets. A bearing plate 6 is hinged to the surface of the movable frame 3. The bearing plate 6 is hinged to the support column 5. A sliding groove is provided on the right side of both the movable frame 3 and the support column 5. A slider 7 is slidably connected inside the sliding groove. A connecting rod 9 is hinged to the surface of the slider 7. The end of the connecting rod 9 away from the slider 7 is hinged to the bearing plate 6. An electric cylinder 8 is fixedly connected to the right side of the movable frame 3. The output end of the electric cylinder 8 is fixedly connected to the slider 7. A round rod 10 is fixedly connected to the surface of the slider 7.

[0021] refer to Figure 1 The top of the support plate 6 is provided with a groove, and there are several grooves. The grooves are evenly distributed on the top of the support plate 6, and the inside of the groove is rotatably connected to a roller 11.

[0022] As a technical optimization of this utility model, by setting several evenly distributed grooves on the top of the support plate 6 and rotating rollers 11 within these grooves, the friction between the cardboard and the support plate 6 can be significantly reduced. When the cardboard is placed on the support plate 6, the rollers 11 contact the bottom of the cardboard, transforming sliding friction into rolling friction. During the cardboard conveying process, the operator only needs to apply a small pushing force to allow the cardboard to slide easily on the rollers 11, greatly reducing the operator's workload. Simultaneously, the even distribution of the rollers 11 ensures that the cardboard is subjected to uniform force during movement, avoiding deformation or damage caused by excessive local friction. Furthermore, the rollers 11 rotate flexibly, adapting to cardboard of different sizes and weights, improving the versatility and applicability of the equipment. This design not only improves the efficiency of cardboard conveying but also ensures the quality of the cardboard, providing a good foundation for subsequent printing processes.

[0023] refer to Figure 1 The top of the support plate 6 is provided with a slot 12. There are several slots 12, which are evenly distributed on the top of the support plate 6. A positioning rod 13 is inserted into the inside of the slot 12, and a small ball 14 is fixedly connected to the top of the positioning rod 13.

[0024] As a technical optimization of this utility model, by setting several evenly distributed slots 12 on the top of the support plate 6, and inserting positioning rods 13 into the slots 12, with small balls 14 fixedly connected to the top of the positioning rods 13, displacement of the cardboard during lifting and conveying can be effectively prevented. When the cardboard is placed on the support plate 6, the operator can insert the positioning rods 13 into the appropriate slots 12 according to the size and shape of the cardboard. The positioning rods 13 contact the edge of the cardboard, forming multi-point positioning, which restricts the horizontal movement of the cardboard. This positioning method is simple and reliable, requires no complicated adjustment process, and can quickly adapt to cardboard of different specifications. Furthermore, it prevents the cardboard from slipping off the support plate 6 when the cardboard is moved up and down.

[0025] refer to Figure 1 The drive box 2 has a bearing fixedly connected inside, and the outer ring of the bearing is fixedly connected to the drive box 2, while the inner ring of the bearing is fixedly connected to the first threaded rod.

[0026] As a technical optimization of this utility model, by fixing a bearing inside the drive housing 2, with the outer ring of the bearing fixedly connected to the drive housing 2 and the inner ring fixedly connected to the first threaded rod, the rotational stability and service life of the first threaded rod can be effectively improved. The bearing reduces the frictional resistance between the first threaded rod and the drive housing 2, making the motor 4 drive the first threaded rod to rotate more smoothly and reducing energy consumption. Simultaneously, the bearing can withstand the radial and axial forces generated by the first threaded rod during rotation, ensuring the coaxiality and perpendicularity of the first threaded rod and preventing bending or damage to the threaded rod due to uneven force. This stable rotational support structure makes the movable frame 3 more stable during lifting, improving the working accuracy and reliability of the entire lifting mechanism. Furthermore, the long service life of the bearing reduces the frequency and cost of equipment maintenance and improves the operating efficiency of the equipment.

[0027] refer to Figure 1 The bottom of the base plate 1 is fixedly connected to all four sides of the bottom. The surface of the base plate 1 is provided with a receiving groove, and there are four receiving grooves. The receiving grooves are slidably connected to the inside of the receiving grooves. The inside of the receiving grooves is threadedly connected to a second threaded rod 18. The bottom of the second threaded rod 18 is rotatably connected to a support pad 19, and the top of the second threaded rod 18 is fixedly connected to a handle.

[0028] As a technical optimization of this utility model, universal wheels 16 are installed around the bottom of the base plate 1, and a receiving groove is set on the surface of the base plate 1. A movable column 17 is slidably connected in the receiving groove. A second threaded rod 18 is threadedly connected to the movable column 17. The bottom of the second threaded rod 18 is rotatably connected to a support pad 19, and the top is fixedly connected to a rotating handle, which gives the equipment good mobility and stability. The universal wheels 16 facilitate the movement and position adjustment of the equipment in the workshop. The operator can easily change the position by simply pushing the equipment, which improves the flexibility of the equipment. When the equipment is moved to the designated position, the operator can pull out the movable column 17 and drive the second threaded rod 18 to rotate in the thread of the movable column 17 by rotating the rotating handle. This causes the support pad 19 to move downward and contact the ground, thereby supporting the equipment and removing it from the support of the universal wheels 16. This support structure can effectively prevent the equipment from shifting during operation and ensure the stability of the equipment. At the same time, the support pad 19 has a large area, which increases the contact area with the ground, reduces the pressure on the ground, and avoids damage to the workshop floor. In addition, by adjusting the height of the four support pads 19, the equipment can be kept level on uneven ground, further improving its applicability.

[0029] refer to Figure 1 The drive box 2 has a reinforcing frame 15 fixedly connected to both sides of the front and back, and the reinforcing frame 15 is fixedly connected to the base plate 1.

[0030] As a technical optimization of this utility model, by fixing reinforcing frames 15 to both sides of the front and back of the drive box 2 and fixing the reinforcing frames 15 to the base plate 1, the connection strength and stability between the drive box 2 and the base plate 1 can be significantly improved. The reinforcing frames 15 increase the contact area and support points between the drive box 2 and the base plate 1, allowing the drive box 2 to evenly transfer force to the base plate 1 when bearing the weight of the movable frame 3 and the bearing plate 6, as well as the vibration generated by the motor 4, thus avoiding structural damage caused by localized stress concentration. This reinforced structure makes the entire lifting mechanism more stable and reliable during operation, reducing noise and malfunctions caused by vibration or shaking. Simultaneously, the presence of the reinforcing frames 15 improves the overall rigidity of the equipment, ensuring the straightness and stability of the movable frame 3 during lifting, further improving the working accuracy and service life of the equipment. Furthermore, the reinforcing frames 15 have a simple structure, are easy to install, and do not add excessive weight or volume to the equipment, making them highly practical.

[0031] The working principle and usage process of this utility model are as follows: During use, the cardboard to be printed is placed on the support plate 6. The slots 12 and positioning rods 13 evenly distributed on the top of the support plate 6 then come into play. Depending on the size and shape of the cardboard, the positioning rods 13 are inserted into the slots 12 at appropriate positions. The small ball 14 at the top of the positioning rod 13 contacts the edge of the cardboard, forming multi-point positioning to prevent displacement of the cardboard during subsequent operations.

[0032] Start motor 4. The output of motor 4 drives the first threaded rod to rotate. Since the first threaded rod is threadedly connected to the movable frame 3, the movable frame 3 will rise smoothly along the thread direction. The support column 5 connected to the bracket of the movable frame 3 also rises accordingly, thereby driving the bearing plate 6 to move upward and lifting the cardboard to a suitable height. If it is necessary to adjust the tilt angle of the bearing plate 6 to facilitate the conveyor surface, the operator removes the positioning rod 13 and then starts the electric cylinder 8. The output of the electric cylinder 8 pushes the slider 7 to slide downward in the groove. Through the connecting rod 9, the bearing plate 6 rotates around the hinge point. Since the round rod 10 connects the sliders 7, the sliders 7 slide synchronously, thereby accurately adjusting the tilt angle of the bearing plate 6.

[0033] Because of the rollers 11 rotatably connected in the groove at the top of the support plate 6, the operator only needs to apply a small pushing force to make the cardboard slide easily on the rollers 11, smoothly push the cardboard to the surface of the conveyor, and then transport it to the printing area for printing.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 paperboard lifting mechanism for paperboard printing, comprising a base plate (1), characterized in that: A drive box (2) is fixedly connected to the top of the base plate (1). A first threaded rod is rotatably connected inside the drive box (2). A movable frame (3) is slidably connected inside the drive box (2). The first threaded rod is threadedly connected to the movable frame (3). A motor (4) is fixedly connected to the top of the drive box (2). The output end of the motor (4) is fixedly connected to the first threaded rod. Support columns (5) are fixedly connected to the front and back of the movable frame (3) through brackets. A load-bearing structure is hinged to the surface of the movable frame (3). Plate (6), the bearing plate (6) is hinged to the support column (5), the right side of the movable frame (3) and the support column (5) are provided with a sliding groove, and the sliding groove is slidably connected to a slider (7), the surface of the slider (7) is hinged to a connecting rod (9), the end of the connecting rod (9) away from the slider (7) is hinged to the bearing plate (6), the right side of the movable frame (3) is fixedly connected to an electric cylinder (8), the output end of the electric cylinder (8) is fixedly connected to the slider (7), and the surface of the slider (7) is fixedly connected to a round rod (10).

2. The paperboard lifting mechanism for paperboard printing according to claim 1, characterized in that: The top of the support plate (6) is provided with a groove, and there are several grooves. The grooves are evenly distributed on the top of the support plate (6), and a roller (11) is rotatably connected inside the groove.

3. The paperboard lifting mechanism for paperboard printing according to claim 2, characterized in that: The top of the support plate (6) is provided with a slot (12), and there are several slots (12). The slots (12) are evenly distributed on the top of the support plate (6). A positioning rod (13) is inserted into the inside of the slot (12), and a small ball (14) is fixedly connected to the top of the positioning rod (13).

4. The paperboard lifting mechanism for paperboard printing according to claim 1, characterized in that: The drive box (2) is internally fixedly connected to a bearing, and the outer ring of the bearing is fixedly connected to the drive box (2), and the inner ring of the bearing is fixedly connected to the first threaded rod.

5. The paperboard lifting mechanism for paperboard printing according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected with casters (16) on all four sides. The surface of the base plate (1) is provided with a receiving groove, and there are four receiving grooves. The receiving grooves are slidably connected with movable columns (17). The movable columns (17) are threadedly connected with a second threaded rod (18). The bottom of the second threaded rod (18) is rotatably connected with a support pad (19). The top of the second threaded rod (18) is fixedly connected with a handle.

6. The paperboard lifting mechanism for paperboard printing according to claim 1, characterized in that: The drive box (2) has a reinforcing frame (15) fixedly connected to both sides of the front and back sides, and the reinforcing frame (15) is fixedly connected to the base plate (1).

Images