Paperboard double-sided pit digging machine capable of continuously operating

By adopting a structural design with fixed and detachable end seats in the cardboard double-sided corrugating machine, combined with the precise control of hydraulic cylinders and lifting blocks, the cardboard double-sided corrugating machine achieves efficient, stable, and flexible corrugating processing, solving the problems of complex structure and insufficient adaptability of existing equipment, and improving production efficiency and quality.

CN224044706UActive Publication Date: 2026-03-27AMB GUANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-08
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing double-sided corrugating machines for cardboard have complex structures, high maintenance costs, are difficult to adjust, produce uneven corrugation results, and cannot adapt to cardboard of different specifications and materials, resulting in low production efficiency and unstable quality.

Method used

A continuous-operation cardboard double-face corrugating machine was designed. It uses fixed end seats and detachable end seats to install the lower and upper corrugating rollers. Combined with hydraulic cylinders and lifting blocks, it achieves precise adjustment of the distance between the rollers. Replaceable corrugating sleeves and limit slides ensure synchronous rotation of the rollers. It is equipped with a servo motor to control the speed and direction.

Benefits of technology

It enables flexible equipment adjustment and efficient continuous operation, reduces maintenance costs, improves the quality and precision of embossing, adapts to the processing needs of different cardboard thicknesses, and enhances production efficiency and equipment performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of carton processing equipment, in particular to a paperboard double-sided pit machine for continuous operation, which comprises a processing base for paperboard production, a fixed end seat and a detachable end seat are symmetrically arranged at two ends of the top of the processing base, and a lower pit pressing roller and an upper pit pressing roller which are arranged in parallel are mounted between the fixed end seat and the detachable end seat. The fixed end base and the detachable end base are symmetrically arranged at the two ends of the top of the machining base and used for installing the lower pit pressing roller and the upper pit pressing roller, and parallel installation of the lower pit pressing roller and the upper pit pressing roller is guaranteed; the lower pit pressing roller and the upper pit pressing roller are arranged in parallel, so that double-sided pit pressing processing can be performed on the paperboard; the lifting grooves are formed in the fixed end seat and the detachable end seat and are matched with the sliding installation of the lifting blocks with the bearings, so that the upper pit pressing roller can move up and down; the lifting block can be accurately controlled to ascend and descend through stretching and retracting of the hydraulic cylinder so as to meet the double-face pit pressing operation requirements of paperboards with different thicknesses, and continuous and efficient paperboard double-face pit pressing machining is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to paper box processing equipment technical field, concretely is paperboard double -sided pit machine of continuous operation. BACKGROUND

[0002] As the key equipment in the production process of paper boxes, paperboard double-sided pit machines undertake the important task of double-sided pit processing of paperboard. With the continuous growth of market demand for paper boxes and the increasing quality requirements for paper boxes, the development of efficient, stable and well-adapted paperboard double-sided pit machine technology has become an inevitable trend in the industry. However, the existing paperboard double-sided pit machines still have some obvious defects in technology and application. First, the structure of some equipment is complex, the maintenance cost is high, and it is not easy to adjust and replace parts, resulting in low production efficiency. Secondly, the pit pressing effect of some equipment is not ideal, and the pit pressing depth is uneven, which affects the strength and stability of the paper box. In addition, the existing equipment also has certain limitations in adapting to paperboards of different specifications and materials, and cannot meet the diversified and personalized market demand. SUMMARY

[0003] The utility model aims at providing paperboard double -sided pit machine of continuous operation to solve the problem of inconvenient adjustment and maintenance of the existing paperboard double -sided pit machine in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The paperboard double -sided pit machine of continuous operation, including the processing base of paperboard production, the top of the processing base is provided with fixed end seat and detachable end seat at both ends, the fixed end seat and detachable end seat are installed with parallelly arranged lower pit roller and upper pit roller between them;

[0006] Lifting grooves are opened on the fixed end seat and the detachable end seat, lifting blocks with bearings are slidingly installed in the lifting grooves, and the two ends of the upper pit roller are respectively rotatably connected to the bearings of the lifting blocks.

[0007] A hydraulic cylinder is installed at the top center of the fixed end seat and the detachable end seat, and the piston rod of the hydraulic cylinder is coaxially connected with the top center of the lifting block.

[0008] As a preferred, the bottom of the detachable end seat is installed with a fixed foot, and the fixed foot is connected with the detachable end seat in an inverted T shape.

[0009] As a preferred, the fixed foot is connected to the top surface of the processing base by a plurality of groups of mounting bolts.

[0010] As a preferred, the lower pit roller and the upper pit roller each include a solid inner roller and a replaceable pit sleeve sleeved on the surface thereof.

[0011] As preferred, a plurality of groups of uniform equidistant and axial limiting sliding grooves are arranged on the outer wall of the solid inner roller.

[0012] As preferred, an installation sliding strip with a cross-sectional size matching that of the limiting sliding groove is mounted on the inner wall of the replaceable pit sleeve and in sliding cooperation.

[0013] As preferred, the cross sections of the limiting sliding groove and the installation sliding strip are isosceles trapezoidal.

[0014] As preferred, a servo motor is mounted at the end of the lower pressing pit roller and the upper pressing pit roller.

[0015] Compared with the prior art, the paperboard double-sided pit machine has the following beneficial effects:

[0016] In the continuous operation paperboard double-sided pit machine, the fixed end seat and the detachable end seat are symmetrically arranged at the two ends of the top of the processing base, used for mounting the lower pressing pit roller and the upper pressing pit roller, so that parallel installation of the two is ensured; the parallel arrangement of the lower pressing pit roller and the upper pressing pit roller can perform double-sided pit processing on the paperboard; the lifting groove is arranged on the fixed end seat and the detachable end seat, and the lifting block with the bearing is slidably mounted, so that the upper pressing pit roller can move up and down; the hydraulic cylinder is mounted at the top center of the fixed end seat and the detachable end seat, and the piston rod thereof is coaxially connected with the top center of the lifting block; through the extension and retraction of the hydraulic cylinder, the lifting of the lifting block can be accurately controlled, and the distance between the upper pressing pit roller and the lower pressing pit roller can be flexibly adjusted to adapt to the double-sided pit operation requirements of paperboards with different thicknesses, so that continuous and efficient paperboard double-sided pit processing is realized.

[0017] In the continuous operation paperboard double-sided pit machine, the lower pressing pit roller and the upper pressing pit roller each include a solid inner roller and a replaceable pit sleeve sleeved on the surface of the solid inner roller; through the arrangement of the solid inner roller and the replaceable pit sleeve sleeved on the surface thereof, the pit sleeve can be replaced alone when it is worn, and the entire pressing pit roller does not need to be replaced, so that the maintenance cost and replacement difficulty of the equipment are reduced.

[0018] In the continuous operation paperboard double-sided pit machine, through the arrangement of the plurality of groups of uniform equidistant and axial limiting sliding grooves on the outer wall of the solid inner roller, and the installation sliding strip with a cross-sectional size matching that of the limiting sliding groove and in sliding cooperation on the inner wall of the replaceable pit sleeve, the replaceable pit sleeve can be accurately and stably mounted on the solid inner roller, so that synchronous rotation of the two during pit pressing operation is ensured, and the pit pressing quality and precision are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to make a further detailed explanation together with the embodiments of the present application, but do not constitute a limitation on the present application.

[0020] Fig. 1 It is a structural schematic diagram of the present application.

[0021] Fig. 2 It is the cross section structure schematic view of the utility model;

[0022] Fig. 3 It is the cross section exploded structure schematic view of the utility model down press pit roller;

[0023] 10, processing base;

[0024] 20, fixed end seat; 21, lifting groove; 22, lifting block;

[0025] 30, detachable end seat; 31, fixed foot; 32, mounting bolt;

[0026] 40, down press pit roller; 41, solid inner roller; 42, limiting sliding slot; 43, replaceable pit sleeve; 44, installation sliding bar;

[0027] 50, up press pit roller;

[0028] 60, hydraulic cylinder;

[0029] 70, servo motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the embodiments of the utility model and the drawings in the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] The continuous operation paperboard double-sided pit machine, such as Figs. 1-3As shown, including paperboard production processing base 10, the top of the two ends of the processing base 10 is symmetrically provided with fixed end seat 20 and detachable end seat 30, and the lower pressing pit roller 40 and the upper pressing pit roller 50 are installed between the fixed end seat 20 and the detachable end seat 30. The fixed end seat 20 and the detachable end seat 30 are provided with lifting grooves 21, the lifting grooves 21 are slidably installed with lifting blocks 22 with bearings, and the two ends of the upper pressing pit roller 50 are rotatably connected to the bearings of the lifting blocks 22. The hydraulic cylinder 60 is installed at the top center of the fixed end seat 20 and the detachable end seat 30, the piston rod of the hydraulic cylinder 60 is coaxially connected with the top center of the lifting block 22, the fixed end seat 20 and the detachable end seat 30 are symmetrically arranged at the top of the processing base 10, used for installing the lower pressing pit roller 40 and the upper pressing pit roller 50, and the parallel installation of the two is ensured. The parallel arrangement of the lower pressing pit roller 40 and the upper pressing pit roller 50 can process the double-sided pressing pit of the paperboard. The lifting grooves 21 are provided on the fixed end seat 20 and the detachable end seat 30, and the lifting blocks 22 with bearings are slidably installed, so that the upper pressing pit roller 50 can move up and down. The hydraulic cylinder 60 is installed at the top center of the fixed end seat 20 and the detachable end seat 30, the piston rod of the hydraulic cylinder 60 is coaxially connected with the top center of the lifting block 22, the lifting block 22 can be accurately controlled by the extension and retraction of the hydraulic cylinder 60, and the distance between the upper pressing pit roller 50 and the lower pressing pit roller 40 can be flexibly adjusted to adapt to the double-sided pressing pit operation requirements of paperboards with different thicknesses, realizing continuous and efficient double-sided pressing pit processing of paperboards.

[0033] Further, the bottom of the detachable end seat 30 is provided with a fixed foot 31, the fixed foot 31 is connected with the detachable end seat 30 in an inverted T shape, and the fixed foot 31 is connected to the top surface of the processing base 10 through a plurality of groups of mounting bolts 32. The fixed foot 31 is connected to the top surface of the processing base 10 through a plurality of groups of mounting bolts 32, so that the detachable end seat 30 can be conveniently installed and detached, facilitating the maintenance and component replacement of the equipment.

[0034] Specifically, the lower pressing pit roller 40 and the upper pressing pit roller 50 each include a solid inner roller 41 and a replaceable pit sleeve 43 sleeved on the surface thereof. When the pit sleeve 43 is worn out, it can be replaced alone without replacing the entire pressing pit roller, thereby reducing the maintenance cost and replacement difficulty of the equipment.

[0035] The outer wall of the solid inner roller 41 is provided with a plurality of sets of limiting sliding grooves 42 which are uniformly equidistant and axially arranged, and the inner wall of the replaceable pit sleeve 43 is provided with mounting sliding strips 44 which are matched in section size with the limiting sliding grooves 42 and are in sliding fit, so that the replaceable pit sleeve 43 can be accurately and stably mounted on the solid inner roller 41, ensuring the synchronous rotation of the two during the pit pressing operation, and improving the pit pressing quality and precision.

[0036] It is worth noting that the cross sections of the limiting sliding grooves 42 and the mounting sliding strips 44 are isosceles trapezoidal, so that they have better anti-dropping effect and connection tightness when in sliding fit, further ensuring the stability of the installation of the replaceable pit sleeve 43.

[0037] In addition, the ends of the lower pit roller 40 and the upper pit roller 50 are provided with servo motors 70, which are installed at the ends of the lower pit roller 40 and the upper pit roller 50, can accurately control the rotating speed and direction of the lower pit roller 40 and the upper pit roller 50, provide stable and accurate power output for the paperboard double-sided pit pressing process, meet the requirements of different processing techniques for rotating speed and direction, and improve the processing performance and efficiency of the equipment.

[0038] The working principle of the continuous paperboard double-sided pit machine is as follows:

[0039] Firstly, place the processing base 10 on a stable working area; install the detachable end seat 30 with the fixed foot 31 on the top surface of the processing base 10 through the installation bolt 32, and symmetrically arrange it with the fixed end seat 20 to complete the basic assembly of the equipment;

[0040] Then, install the lower pit roller 40 and the upper pit roller 50 between the fixed end seat 20 and the detachable end seat 30; slide the replaceable pit sleeve 43 through the mounting sliding strip 44 on the inner wall with the limiting sliding groove 42 on the outer wall of the solid inner roller 41, and fit it on the solid inner roller 41 to complete the assembly of the pit roller; then, fix the lower pit roller 40 between the two end seats, and rotate the two ends of the upper pit roller 50 to connect with the bearings of the lifting block 22;

[0041] After that, start the hydraulic cylinder 60, and the piston rod drives the lifting block 22 to slide in the lifting groove 21, so as to adjust the distance between the upper pit roller 50 and the lower pit roller 40 to adapt to the thickness of the paperboard to be processed;

[0042] After the preparation work is completed, the servo motor 70 at the end of the lower pit roller 40 and the upper pit roller 50 is started, the rotating speed and direction of the servo motor 70 are controlled, the paperboard is sent between the lower pit roller 40 and the upper pit roller 50, the paperboard is processed by double-sided pit pressing under the rotating extrusion of the two, and continuous operation is realized; after the processing is completed, if the replaceable pit sleeve 43 appears wear, the pit sleeve 43 can be replaced by disassembling and installing the cooperation between the sliding strip 44 and the limiting sliding groove 42.

[0043] 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 present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A continuous paperboard double-sided creasing machine comprising a processing base (10) for paperboard production, characterized in that: The machining base (10) is symmetrically provided with a fixed end seat (20) and a detachable end seat (30) at the top of both ends, and a lower pressing pit roller (40) and an upper pressing pit roller (50) are installed between the fixed end seat (20) and the detachable end seat (30) and arranged in parallel; The fixed end seat (20) and the detachable end seat (30) are provided with lifting grooves (21), and the lifting grooves (21) are slidably installed with lifting blocks (22) with bearings; The top center of the fixed end seat (20) and the detachable end seat (30) is provided with a hydraulic cylinder (60), and the piston rod of the hydraulic cylinder (60) is coaxially connected with the top center of the lifting block (22).

2. A continuous duty paperboard double facer as defined in claim 1 wherein: The bottom of the detachable end seat (30) is provided with a fixed foot (31), and the fixed foot (31) and the detachable end seat (30) are connected in an inverted T shape.

3. A continuous operating double facer for paperboard according to claim 2, characterized in that: The fixed foot (31) is connected to the top surface of the machining base (10) through a plurality of groups of mounting bolts (32).

4. The continuous operating double facer of claim 1 wherein: The lower pressing pit roller (40) and the upper pressing pit roller (50) each include a solid inner roller (41) and a replaceable pit sleeve (43) sleeved on the surface thereof.

5. A continuous operating double facer for paperboard according to claim 4, characterized in that: A plurality of groups of limiting sliding grooves (42) are evenly and equidistantly arranged on the outer wall of the solid inner roller (41) and are axially arranged.

6. A continuous operating double facer for paperboard according to claim 5, characterized in that: The inner wall of the replaceable pit sleeve (43) is provided with an installation sliding strip (44) which is matched with the cross-sectional size of the limiting sliding groove (42) and is slidably connected.

7. A continuous operating double facer for paperboard according to claim 6, characterized in that The cross sections of the limiting sliding groove (42) and the installation sliding strip (44) are isosceles trapezoidal.

8. The continuous operating paperboard double facer of claim 1 wherein: The end portions of the lower pressing pit roller (40) and the upper pressing pit roller (50) are provided with servo motors (70).