Paperboard bending device for carton packaging box production

By using a beveled bending plate and a hydraulic support structure in the cardboard bending device, the problems of offset and breakage during the cardboard bending process are solved, achieving high-precision and high-quality cardboard bending results.

CN223466796UActive Publication Date: 2025-10-24XIAN JIAOYAO CARTON PACKAGING CO LTD
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Patent Information

Application Number
CN202422771473.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-10-24
Estimated Expiration
2034-11-13

AI Technical Summary

Technical Problem

In current cardboard box production, creases are prone to shifting and breakage during the bending process of cardboard, affecting the quality of the finished product.

Method used

A cardboard bending device was designed, which adopts an inclined bending plate and a hydraulic telescopic rod support structure, combined with a cylinder pushing and pressing mechanism, to ensure that the cardboard is bent smoothly and reduce resistance and deflection.

Benefits of technology

It improves the precision of cardboard bending and the aesthetics of finished products, reduces cardboard breakage, and ensures smooth bending operations and overall processing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a paperboard bending device for carton packaging box production, and belongs to the technical field of paperboard bending equipment. The device comprises a workbench, a bending mechanism is arranged on the workbench, a pressing mechanism is arranged on one side of the bending mechanism, the bending mechanism comprises a mounting base, fixing frames are arranged on the two sides of the top face of the mounting base, a bending plate and a pushing mechanism are arranged between the two fixing frames, and the side face, close to the lower end, of the bending plate is arranged to be an inclined face; the lower end of the bending plate is arranged to be the inclined face, when a paperboard is bent downwards, the paperboard can be gradually guided to be in smooth transition along the inclined face, resistance and paperboard damage in the bending process are reduced, meanwhile, through the cooperation of the supporting plate and the hydraulic telescopic rod, the paperboard bending efficiency is improved, and the paperboard bending quality is improved. According to the paperboard bending device, certain supporting force is provided for a paperboard, the paperboard is prevented from shifting or being bent, it is guaranteed that the bending action is conducted smoothly, the attractiveness of a finished product is guaranteed, and the bending precision and the overall machining quality are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cardboard bending equipment, and more specifically to a cardboard bending device for producing carton packaging boxes. Background Art

[0002] Cartons are the most widely used packaging product, and their usage has always been the highest among all packaging products. With their superior performance and good processing properties, carton boxes have gradually replaced wooden boxes and other transport packaging containers, becoming the main force in transport packaging.

[0003] When making cartons, it is necessary to bend the carton blanks. For example, the existing patent CN220517662U discloses a carton board bending device, which discloses that a cardboard pressing mechanism and a cardboard bending mechanism are installed on a workbench, wherein the cardboard pressing mechanism can move downward and press the cardboard on the workbench, and the cardboard bending mechanism is staggered with the workbench. The cardboard bending mechanism can move downward and drive the part of the cardboard extending out of the workbench to bend downward. Through the cooperation of the cardboard pressing mechanism and the cardboard bending mechanism, the folding position of the corrugated cardboard can be made neat. Although the device has many beneficial effects, during the bending process of the carton, due to the lack of support at the bent part, the crease is prone to offset, which destroys the structure of the cardboard. In view of this, we propose a cardboard bending device for the production of carton packaging boxes. Utility Model Content

[0004] The purpose of the utility model is to provide a cardboard bending device for producing carton packaging boxes, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A cardboard bending device for producing carton packaging boxes comprises a workbench, a bending mechanism is provided on the workbench, a pressing mechanism is provided on one side of the bending mechanism, the bending mechanism comprises a mounting seat, both ends of the mounting seat are slidably engaged with the side edges of the workbench, limiting screws are provided through both sides of the mounting seat, fixing frames are provided on both sides of the top surface of the mounting seat, a bending plate and a pushing mechanism are provided between the two fixing frames, both ends of the bending plate are slidably engaged with the fixing frames, an output shaft at the lower end of the pushing mechanism is connected to the bending plate, and the side surface of the bending plate near the lower end is provided with an inclined surface;

[0007] One side of the workbench is rotatably connected to a support plate, the support plate is located below the bending plate, and a hydraulic telescopic rod is provided on the bottom surface of the support plate. Both ends of the hydraulic telescopic rod are rotatably connected to the side of the workbench and the support plate respectively.

[0008] Preferably, a slide is provided on the side of the workbench, the slide extends to one side of the support plate, and both sides of the mounting seat are in sliding cooperation with the slide.

[0009] Preferably, the pushing mechanism comprises a mounting frame and a cylinder A, the mounting frame is fixedly connected with the fixed frame at both ends respectively, the cylinder A is installed on the mounting frame, and an output shaft of the cylinder A is connected with the bending plate.

[0010] Preferably, a sliding groove is arranged in the inner side of the fixed frame, and sliding blocks are arranged at both ends of the bending plate and are in sliding fit with the sliding groove.

[0011] Preferably, the pressing mechanism is located on the side, away from the supporting plate, of the top surface of the workbench, the pressing mechanism comprises an extrusion plate and a cylinder B, an output shaft of the cylinder B is connected with the extrusion plate, and a rubber pad is bonded to the bottom surface of the extrusion plate.

[0012] A cavity is arranged in the bottom of the mounting seat, the extrusion plate is installed in the cavity, and both ends of the extrusion plate are in sliding fit with the inner wall of the mounting seat.

[0013] Compared with the prior art, the paperboard bending device has the following beneficial effects:

[0014] The lower end of the bending plate is arranged as an inclined surface, so that when the paperboard is bent downward, the paperboard can be gradually guided to smoothly transition along the inclined surface, the resistance in the bending process and the damage of the paperboard are reduced, and meanwhile, the supporting plate and the hydraulic telescopic rod provide certain supporting force for the paperboard, so that the paperboard is prevented from being displaced or being deflected, the bending action is ensured to be smoothly performed, the appearance of the finished product is ensured to be beautiful, the bending precision is improved, and the overall processing quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall structure schematic view of the paperboard bending device;

[0016] Fig. 2 It is an overall structure bottom view schematic view of the paperboard bending device;

[0017] Fig. 3 It is a bending mechanism schematic view of the paperboard bending device.

[0018] In the drawings, 1 is a workbench, 101 is a sliding frame, 2 is a bending mechanism, 201 is a mounting seat, 202 is a limiting screw, 203 is a fixed frame, 204 is a bending plate, 205 is a pushing mechanism, 206 is a cylinder A, 207 is a mounting frame, 208 is a sliding groove, 209 is an inclined surface, 3 is a pressing mechanism, 301 is an extrusion plate, 302 is a cylinder B, 4 is a supporting plate, and 5 is a hydraulic telescopic rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the paperboard bending device will be clearly and completely described below with reference to the drawings in the embodiments of the paperboard bending device. Obviously, the described embodiments are only part of the embodiments of the paperboard bending device, rather than all the embodiments of the paperboard bending device.

[0020] Embodiment:

[0021] Please refer to Figs. 1-3 The utility model provides a paperboard bending device for carton packaging box production, including work table 1, be provided with bending mechanism 2 on work table 1, bending mechanism 2 one side is provided with pressure mechanism 3, bending mechanism 2 includes mounting seat 201, and the both ends of mounting seat 201 are slidably connected with the side of work table 1, facilitating the position adjustment of mounting seat 201, and the both sides of mounting seat 201 are provided with limiting screw 202, and the position of mounting seat 201 is fixed through the setting of limiting screw 202, and the both sides of the top surface of mounting seat 201 are provided with fixed frame 203, and the lower end of fixed frame 203 extends to the top surface of work table 1, and bending plate 204 and push mechanism 205 are arranged between the two fixed frames 203, the both ends of bending plate 204 are slidably connected with fixed frame 203, and the lower end output shaft of push mechanism 205 is connected with bending plate 204, the side surface close to the lower end of bending plate 204 is provided as inclined plane 209, bending plate 204 is vertically moved by push mechanism 205, and paperboard is bent, the lower end of bending plate 204 is provided as inclined plane 209, when paperboard is bent downward, can gradually guide paperboard along inclined plane 209 smooth transition, reduce the resistance and paperboard breakage in the bending process, ensure that the bending action is carried out smoothly and the appearance of finished product, improve bending precision and overall processing quality.

[0022] The utility model discloses a paperboard bending device for carton packaging box production, including work table 1, be provided with bending mechanism 2 on work table 1, bending mechanism 2 one side is provided with pressure mechanism 3, bending mechanism 2 includes mounting seat 201, and the both ends of mounting seat 201 are slidably connected with the side of work table 1, facilitating the position adjustment of mounting seat 201, and the both sides of mounting seat 201 are provided with limiting screw 202, and the position of mounting seat 201 is fixed through the setting of limiting screw 202, and the both sides of the top surface of mounting seat 201 are provided with fixed frame 203, and the lower end of fixed frame 203 extends to the top surface of work table 1, and bending plate 204 and push mechanism 205 are arranged between the two fixed frames 203, the both ends of bending plate 204 are slidably connected with fixed frame 203, and the lower end output shaft of push mechanism 205 is connected with bending plate 204, the side surface close to the lower end of bending plate 204 is provided as inclined plane 209, bending plate 204 is vertically moved by push mechanism 205, and paperboard is bent, the lower end of bending plate 204 is provided as inclined plane 209, when paperboard is bent downward, can gradually guide paperboard along inclined plane 209 smooth transition, reduce the resistance and paperboard breakage in the bending process, ensure that the bending action is carried out smoothly and the appearance of finished product, improve bending precision and overall processing quality.

[0023] In the application, the side of work table 1 is provided with sliding frame 101, sliding frame 101 extends to one side of support plate 4, and the both sides of mounting seat 201 are slidably connected with sliding frame 101, so that the relative position of bending plate 204 and the edge of work table 1 can be adjusted when paperboard of different thicknesses is bent.

[0024] In the application, the pushing mechanism 205 includes a mounting frame 207 and a cylinder A 206, the mounting frame 207 is connected and fixed with the fixed frame 203 at both ends, the cylinder A 206 is installed on the mounting frame 207, the output shaft of the cylinder A 206 is connected with the bending plate 204, the output shaft of the cylinder A 206 is used for pushing the bending plate 204 to move vertically, and the paperboard is bent.

[0025] In the application, the inside of the fixed frame 203 is provided with a sliding groove 208, the bending plate 204 is provided with a sliding block at both ends, the sliding block is in sliding cooperation with the sliding groove 208, and the movement track of the bending plate 204 in the vertical direction is ensured.

[0026] In the application, the pressing mechanism 3 is located on one side, away from the support plate 4, of the top surface of the workbench 1, the pressing mechanism 3 includes an extrusion plate 301 and a cylinder B 302, the output shaft of the cylinder B 302 is connected with the extrusion plate 301, the bottom surface of the extrusion plate 301 is bonded with a rubber pad, the extrusion plate 301 is pushed to move vertically by the cylinder B 302, the rubber pad on the bottom surface of the extrusion plate 301 increases the friction between the paperboard, and the paperboard will not be displaced when being bent;

[0027] The bottom of the mounting seat 201 is provided with a cavity, the extrusion plate 301 is installed in the cavity, the two ends of the extrusion plate 301 are in sliding cooperation with the inner wall of the mounting seat 201, and the cavity is arranged to facilitate the paperboard to extend to the top surface of the support plate 4 from the cavity, wherein the support plate 4 is flush with the top surface of the workbench 1.

[0028] Working principle:

[0029] In the production and processing process of the carton packaging box, the paperboard to be bent is placed on the top surface of the workbench 1, the paperboard extends to the top surface of the support plate 4 through the cavity at the bottom of the mounting seat 201, the bending position is located at the edge of the workbench 1, the horizontal position of the mounting seat 201 is adjusted according to the thickness of the carton, then the cylinder B 302 is used for pushing the extrusion plate 301 to move vertically, the part of the paperboard on the top surface of the workbench 1 is pressed, then the output shaft of the cylinder A 206 is used for pushing the bending plate 204 to move vertically, when the inclined surface 209 on the bending plate 204 moves downward and contacts the paperboard, the sensor on the support plate 4 is also subjected to pressure, and the information is rapidly fed back to the control system, the control system starts the hydraulic telescopic rod 5 immediately, the hydraulic telescopic rod 5 is retracted synchronously with the speed of the downward pressure of the bending plate 204, the paperboard can have a certain supporting force when being bent downward, and the paperboard can be gradually guided to smoothly transition along the inclined surface 209, the damage or deflection of the paperboard in the bending process is reduced, and when the vertical surface at the upper end of the inclined surface 209 contacts the paperboard, the support plate 4 changes to the vertical position rapidly driven by the hydraulic telescopic rod 5, and the subsequent bending of the paperboard is not affected.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A paperboard bending device for carton packaging box production, comprising a workbench (1), a bending mechanism (2) is arranged on the workbench (1), and a pressing mechanism (3) is arranged on one side of the bending mechanism (2), characterized in that: The bending mechanism (2) comprises a mounting seat (201), the mounting seat (201) is slidably connected with the side of the workbench (1), the mounting seat (201) is provided with a limiting screw (202) on both sides, the mounting seat (201) is provided with a fixed frame (203) on the top surface, a bending plate (204) and a pushing mechanism (205) are arranged between the two fixed frames (203), the bending plate (204) is slidably connected with the fixed frame (203), the output shaft of the pushing mechanism (205) is connected with the bending plate (204), and the side surface close to the lower end of the bending plate (204) is provided as an inclined surface (209); The workbench (1) is rotatably connected with a support plate (4) on one side, the support plate (4) is located below the bending plate (204), and the bottom surface of the support plate (4) is provided with a hydraulic telescopic rod (5); the two ends of the hydraulic telescopic rod (5) are rotatably connected with the side of the workbench (1) and the support plate (4) respectively.

2. The paperboard bending device for paper box packaging case production according to claim 1, characterized in that: The workbench (1) is provided with a sliding frame (101) on the side, the sliding frame (101) extends to one side of the support plate (4), and the mounting seat (201) is slidably connected with the sliding frame (101) on both sides.

3. The paperboard bending device for paper box packaging case production according to claim 1, characterized in that: The pushing mechanism (205) comprises a mounting frame (207) and a cylinder A (206), the mounting frame (207) is connected with the fixed frame (203) on both ends, the cylinder A (206) is mounted on the mounting frame (207), and the output shaft of the cylinder A (206) is connected with the bending plate (204).

4. The paperboard bending device for a carton packaging box production according to claim 3, characterized in that: The inner side of the fixed frame (203) is provided with a sliding groove (208), and the two ends of the bending plate (204) are provided with sliding blocks which are slidably connected with the sliding groove (208).

5. The paperboard bending device for carton packaging box production according to claim 1, characterized in that: The pressing mechanism (3) is located on the top surface of the workbench (1) away from the support plate (4) on one side, the pressing mechanism (3) comprises an extrusion plate (301) and a cylinder B (302), the output shaft of the cylinder B (302) is connected with the extrusion plate (301), and the bottom surface of the extrusion plate (301) is bonded with a rubber pad; The bottom of the mounting seat (201) is provided with a cavity, the extrusion plate (301) is mounted in the cavity, and the two ends of the extrusion plate (301) are slidably connected with the inner wall of the mounting seat (201).