Flattening equipment for paper packaging box production

Abstract

The utility model discloses flattening equipment for paper packaging box production, which relates to the technical field of paper packaging box production and comprises a pressure bearing table and a pressure applying plate, a movable limiting plate and a fixed limiting plate are arranged on the upper surface of the pressure bearing table, and the movable limiting plate and the fixed limiting plate are used for limiting paperboards. The bottom end of the fixed limiting plate is fixedly connected with the upper surface of the pressure bearing table. According to the paperboard flattening device, the movable limiting plate and the fixed limiting plate are used in cooperation, so that a paperboard can be kept in an up-down alignment state in the flattening process, the problem that the paperboard is crushed due to dislocation is avoided, the machining quality is improved, and the production efficiency is improved. Through cooperative use of a linkage rod, a transmission gear, a two-way threaded rod and a gear positioning assembly, a movable limiting plate can complete limiting work before a pressing plate presses a paperboard, meanwhile, the movable limiting plate is reset in time after flattening work is finished, the limiting effect on the paperboard is relieved, and follow-up paperboard discharging and feeding work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of paper packaging box production, in particular to a flattening device for producing paper packaging boxes. Background Art

[0002] Corrugated boxes are produced by cutting and folding corrugated cardboard, which is made by gluing at least one layer of corrugated paper and one layer of boxboard. After gluing, it needs to be flattened, so corresponding flattening equipment is needed.

[0003] Reference publication number CN212049792U is a flattening device for producing corrugated paper packaging boxes, which includes a cardboard pressure seat, both sides of the cardboard pressure seat are fixedly connected to support slides, the upper ends of the two support slides are fixedly connected to the same top plate, and the same shaping heavy pressure plate is movably installed between the two support slides. The front end of the shaping heavy pressure plate is fixedly connected to a handle, the inner surface of the cardboard pressure seat is provided with a cardboard groove, and a movable splint is movably installed on the inner wall of one side of the cardboard groove through a telescopic rod. Both sides of the cardboard pressure seat The upper surface of the edge position is threadedly connected with a threaded adjustment column. The flattening device can flatten the corrugated cardboard and adjust the flattening position very well to avoid deformation of the corrugated paper due to heavy pressure, reduce the waste paper rate, and be applicable to corrugated cardboard of various sizes. It has a simple structure, is easy to manufacture and operate, and reduces production costs. According to the above, although the flattening device can flatten the corrugated cardboard, it is usually not convenient to limit the side of the corrugated cardboard, which makes it easy to cause displacement during the flattening process of the corrugated cardboard, which often troubles people. Utility Model Content

[0004] The purpose of the utility model is to provide a flattening device for producing paper packaging boxes to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A flattening device for producing paper packaging boxes includes a pressure platform and a pressure plate. The upper surface of the pressure platform is provided with a movable limiting plate and a fixed limiting plate for limiting the cardboard. The bottom end of the fixed limiting plate is fixedly connected to the upper surface of the pressure platform. The upper surface of the pressure platform is provided with a limiting plate guide groove for the sliding of the movable limiting plate. The upper surface of the pressure platform is provided with a pushing assembly.

[0007] A threaded hole is provided at the bottom end of the limit plate guide groove, and a bidirectional threaded rod is threadedly connected to the inner wall of the threaded hole. A transmission gear is fixedly connected to one end of the bidirectional threaded rod close to the limit plate guide groove, and a linkage rod is engaged with the outer wall of the transmission gear.

[0008] The top end of the linkage rod is fixedly connected to one side of the pressure plate, and an auxiliary groove adapted to the linkage rod is provided on the upper surface of the pressure platform. A gear positioning assembly is provided on one side of the transmission gear, and the gear positioning assembly includes a guide rod, a spring and a limiting sleeve. A docking ring groove is provided on one side of the transmission gear, and the inner wall of the docking ring groove is movably connected to one end of the limiting sleeve. The inner wall of the limiting sleeve is movably connected to the outer wall of the guide rod, and one end of the limiting sleeve is fixedly connected to one end of the spring.

[0009] A further improvement of the technical solution of the present invention is that the outer wall of the linkage rod is movably connected to the inner wall of the auxiliary groove, and one side of the linkage rod close to the bottom end is fixedly connected with teeth for engaging with the outer wall of the transmission gear.

[0010] A further improvement of the technical solution of the present utility model is that: the number of the movable limiting plates is two, and the two movable limiting plates are symmetrically distributed at both ends of the bidirectional threaded rod.

[0011] A further improvement of the technical solution of the present utility model is that the pushing assembly is located on the upper surface of the pressure platform close to the back side, the pushing assembly includes a pushing plate and a pushing hydraulic rod, and the back side of the pushing plate is fixedly connected to one end of the pushing hydraulic rod.

[0012] A further improvement of the technical solution of the present utility model is that the outer wall of the pushing hydraulic rod is fixedly connected to a hydraulic rod positioning frame for fixing it, the side of the pushing plate close to the pushing hydraulic rod is fixedly connected to a guide slide rod, and the end of the guide slide rod away from the pushing plate can move through the hydraulic rod positioning frame.

[0013] A further improvement of the technical solution of the present invention is that: the spring is movably sleeved on the outer wall of the guide rod, and one end of the guide rod away from the limiting sleeve is fixedly connected to the inner wall of the pressure platform.

[0014] A further improvement of the technical solution of the present utility model is that: both ends of the bidirectional threaded rod are rotatably connected to the inner wall of the pressure platform.

[0015] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0016] The utility model provides a flattening device for producing paper packaging boxes. By using a movable limiting plate and a fixed limiting plate in cooperation, the cardboard can be kept in an upper and lower aligned state during the flattening process, thereby avoiding the problem of being crushed due to misalignment and improving the processing quality.

[0017] The utility model provides a flattening device for producing paper packaging boxes. By utilizing the coordinated use of a linkage rod, a transmission gear, a bidirectional threaded rod and a gear positioning assembly, a movable limiting plate can complete a limiting work before a pressure plate applies pressure to a paperboard. At the same time, the movable limiting plate can be reset in time after the flattening work is completed, thereby releasing the limiting effect on the paperboard and facilitating subsequent unloading and loading of the paperboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the bottom-up structure of the present invention;

[0020] Figure 3 This is an enlarged schematic diagram of the structure at point A of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the gear positioning assembly of the present utility model;

[0022] Figure 5 It is a rear view structural schematic diagram of the present utility model.

[0023] In the figure: 1. Pressure platform; 2. Pressure plate; 3. Movable limit plate; 4. Fixed limit plate; 5. Push plate; 6. Linkage rod; 7. Bidirectional threaded rod; 8. Limit plate guide groove; 9. Transmission gear; 10. Gear positioning assembly; 11. Docking ring groove; 12. Guide rod; 13. Spring; 14. Limit sleeve; 15. Push hydraulic rod; 16. Hydraulic rod positioning frame; 17. Guide slide rod. DETAILED DESCRIPTION

[0024] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] The present invention is further described in detail below with reference to the embodiments:

[0026] like Figure 1-5As shown, the present invention provides a flattening device for producing paper packaging boxes, comprising a pressure platform 1 and a pressure plate 2. The upper surface of the pressure platform 1 is provided with a movable limiting plate 3 and a fixed limiting plate 4 for limiting the position of the cardboard. The bottom end of the fixed limiting plate 4 is fixedly connected to the upper surface of the pressure platform 1. The upper surface of the pressure platform 1 is provided with a limiting plate guide groove 8 for the sliding movement of the movable limiting plate 3. The upper surface of the pressure platform 1 is provided with a pusher assembly. The fixed limiting plate 4 and the movable limiting plate 3 are both L-shaped frame plates. When the two sets of movable limiting plates 3 are closed, they fit neatly with the top corners of the cardboard.

[0027] A threaded hole is provided at the bottom end of the limit plate guide groove 8, and a bidirectional threaded rod 7 is threadedly connected to the inner wall of the threaded hole. A transmission gear 9 is fixedly connected to one end of the bidirectional threaded rod 7 close to the limit plate guide groove 8, and a linkage rod 6 is engaged with the outer wall of the transmission gear 9.

[0028] The top end of the linkage rod 6 is fixedly connected to one side of the pressure plate 2, and an auxiliary groove for adapting the linkage rod 6 is provided on the upper surface of the pressure platform 1. A gear positioning assembly 10 is provided on one side of the transmission gear 9. The gear positioning assembly 10 includes a guide rod 12, a spring 13 and a limiting sleeve 14. A docking ring groove 11 is provided on one side of the transmission gear 9. The inner wall of the docking ring groove 11 is movably connected to one end of the limiting sleeve 14, and the inner wall of the limiting sleeve 14 is movably connected to the outer wall of the guide rod 12. One end of the limiting sleeve 14 is fixedly connected to one end of the spring 13.

[0029] During the rotation of the transmission gear 9, the limiting sleeve 14 is released from the inner wall of the docking ring groove 11, and the limiting sleeve 14 is pushed to fit the docking ring groove 11 under the deformation elastic force of the spring 13. When the teeth on the linkage rod 6 are out of engagement with the transmission gear 9, the limiting sleeve 14 brakes the transmission gear 9 under the push of the spring 13, so that the transmission gear 9 remains stationary. When the pressure plate 2 drives the linkage rod 6 to move upward, the teeth on the linkage rod 6 can just fit and engage with the transmission gear 9. As the transmission gear 9 reverses under the drive of the linkage rod 6, the movable limiting plate 3 is reset under the reversal of the two-way threaded rod 7, thereby releasing the limiting state of the cardboard.

[0030] The outer wall of the linkage rod 6 is movably connected to the inner wall of the auxiliary groove, and one side of the linkage rod 6 close to the bottom end is fixedly connected with teeth for engaging with the outer wall of the transmission gear 9.

[0031] There are two movable limiting plates 3 , which are symmetrically distributed at both ends of the bidirectional threaded rod 7 .

[0032] The spring 13 is movably sleeved on the outer wall of the guide rod 12 , and one end of the guide rod 12 away from the limiting sleeve 14 is fixedly connected to the inner wall of the pressure platform 1 .

[0033] Both ends of the bidirectional threaded rod 7 are rotatably connected to the inner wall of the pressure platform 1 .

[0034] like Figure 1-5 As shown, based on Example 1, the utility model provides a technical solution: preferably, the pushing assembly is located on the upper surface of the pressure platform 1 near the back, and the pushing assembly includes a pushing plate 5 and a pushing hydraulic rod 15, and the back of the pushing plate 5 is fixedly connected to one end of the pushing hydraulic rod 15.

[0035] A hydraulic rod positioning bracket 16 is fixedly connected to the outer wall of the pusher hydraulic rod 15 for securing it. A guide slide 17 is fixedly connected to the side of the pusher plate 5 near the pusher hydraulic rod 15. The end of the guide slide 17 away from the pusher plate 5 is movable through the hydraulic rod positioning bracket 16. When the pressure plate 2 is reset, the pusher hydraulic rod 15 is activated, pushing the pusher plate 5 toward the cardboard, which in turn pushes the cardboard forward, moving it to a position that is more convenient for picking up.

[0036] The following is a detailed description of the working principle of the flattening equipment used in the production of paper packaging boxes.

[0037] like Figure 1-5 As shown, when in use, the cardboard to be flattened is placed on the pressure platform 1, and the top corner of the cardboard is aligned with the inner right angle of the fixed limit plate 4. When the cardboard is stacked, the pressure device on the pressure plate 2 is started, and the pressure plate 2 begins to move downward. In the process of the pressure plate 2 moving downward, the linkage rod 6 will be driven to move downward, and the linkage rod 6 will drive the transmission gear 9 to rotate through the teeth. The transmission gear 9 will drive the two-way threaded rod 7 to rotate while rotating. In the process of rotation, the two-way threaded rod 7 will drive the two groups of movable limit plates 3 to move closer to each other through the action of the outer wall threads. In the process of the two groups of movable limit plates 3 moving closer to each other, they will slide on the inner wall of the limit plate guide groove 8, and complete the clamping and limiting state of the cardboard before the bottom surface of the pressure plate 2 contacts the cardboard. At this time, the teeth at the highest position on the linkage rod 6 are just disengaged from the transmission gear 9.

[0038] Afterwards, the pressure plate 2 moves downward to flatten the cardboard, while the movable limiting plate 3 and the fixed limiting plate 4 limit the cardboard to prevent it from being dislocated during the pressure process.

[0039] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A flattening device for producing paper packaging boxes, comprising a pressure platform (1) and a pressure plate (2), characterized in that: The upper surface of the pressure platform (1) is provided with a movable limiting plate (3) and a fixed limiting plate (4) for limiting the cardboard, the bottom end of the fixed limiting plate (4) is fixedly connected to the upper surface of the pressure platform (1), the upper surface of the pressure platform (1) is provided with a limiting plate guide groove (8) for the sliding of the movable limiting plate (3), and the upper surface of the pressure platform (1) is provided with a pushing assembly; A threaded hole is formed at the bottom end of the limit plate guide groove (8), a bidirectional threaded rod (7) is threadedly connected to the inner wall of the threaded hole, a transmission gear (9) is fixedly connected to one end of the bidirectional threaded rod (7) close to the limit plate guide groove (8), and a linkage rod (6) is meshed with the outer wall of the transmission gear (9); The top end of the linkage rod (6) is fixedly connected to one side of the pressure plate (2), the upper surface of the pressure platform (1) is provided with an auxiliary groove adapted to the linkage rod (6), and a gear positioning assembly (10) is provided on one side of the transmission gear (9), and the gear positioning assembly (10) includes a guide rod (12), a spring (13) and a limiting sleeve (14), and a docking ring groove (11) is provided on one side of the transmission gear (9), the inner wall of the docking ring groove (11) is movably connected to one end of the limiting sleeve (14), the inner wall of the limiting sleeve (14) is movably connected to the outer wall of the guide rod (12), and one end of the limiting sleeve (14) is fixedly connected to one end of the spring (13).

2. The flattening device for producing paper packaging boxes according to claim 1, characterized in that: The outer wall of the linkage rod (6) is movably connected to the inner wall of the auxiliary groove, and one side of the linkage rod (6) close to the bottom end is fixedly connected with teeth for engaging with the outer wall of the transmission gear (9).

3. The flattening device for producing paper packaging boxes according to claim 1, characterized in that: There are two movable limiting plates (3), and the two movable limiting plates (3) are symmetrically distributed at both ends of the bidirectional threaded rod (7).

4. The flattening device for producing paper packaging boxes according to claim 1, characterized in that: The pusher assembly is located on the upper surface of the pressure platform (1) near the back, and comprises a pusher plate (5) and a pusher hydraulic rod (15). The back of the pusher plate (5) is fixedly connected to one end of the pusher hydraulic rod (15).

5. The flattening device for producing paper packaging boxes according to claim 4, characterized in that: The outer wall of the pusher hydraulic rod (15) is fixedly connected to a hydraulic rod positioning frame (16) for fixing the pusher hydraulic rod (15); the side of the pusher plate (5) close to the pusher hydraulic rod (15) is fixedly connected to a guide slide rod (17); the end of the guide slide rod (17) away from the pusher plate (5) is movable and passes through the hydraulic rod positioning frame (16).

6. The flattening device for producing paper packaging boxes according to claim 1, characterized in that: The spring (13) is movably sleeved on the outer wall of the guide rod (12), and one end of the guide rod (12) away from the limiting sleeve (14) is fixedly connected to the inner wall of the pressure platform (1).

7. The flattening device for producing paper packaging boxes according to claim 1, characterized in that: Both ends of the bidirectional threaded rod (7) are rotatably connected to the inner wall of the pressure platform (1).

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