Belt type liftable injury-free corrugated paperboard conveying device

By combining a belt conveyor and a negative pressure damper, the problems of crushing and embossing caused by the inconvenience of height adjustment during the conveying process of corrugated cardboard are solved, achieving precise and efficient cardboard conveying.

CN224394138UActive Publication Date: 2026-06-23SUZHOU WEILAI SMART EQUIPMENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU WEILAI SMART EQUIPMENT TECHNOLOGY CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing corrugated cardboard conveying devices are prone to causing surface damage and indentation when height adjustment is inconvenient, and their conveying efficiency is low.

Method used

The belt conveyor assembly, combined with a negative pressure damper and an eccentric adjustment mechanism, achieves height adjustment through an eccentric small ring and a geared motor drive, and increases the contact area between the belt and the cardboard, reducing friction and avoiding gravure printing.

Benefits of technology

It enables precise feeding of corrugated cardboard, reduces dents and gravure printing, and improves feeding accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224394138U_ABST
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Abstract

The utility model discloses a belt type liftable pressure injury free corrugated board conveying device belongs to material conveying technical field, including main box, be provided with the belt conveying subassembly for conveying corrugated board in the main box, and the conveying belt of belt conveying subassembly is upwards through the main box, and is provided with a plurality of small holes on the conveying belt, the side of main box is provided with the air door, and the air door is communicated to set up the suction source of the air suction to the main box outside, belt conveying subassembly still includes the support swing arm, and the eccentric small circle that can be pressed against the support swing arm upper and lower direction height adjustment is rotatably arranged in the main box. The utility model discloses be used to solve the problem of corrugated board in the conveying process height is not suitable for adjusting, is easily pressed out the intaglio, causes the paperboard damage.
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Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, specifically a belt-type liftable corrugated cardboard conveyor that prevents damage from pressure. Background Technology

[0002] With the rapid development of modern logistics, cardboard packaging has been increasingly used in logistics packaging due to its advantages of being lightweight and low-cost. Cardboard boxes are made of corrugated cardboard, so the quality of the corrugated cardboard directly determines the quality of the cardboard box.

[0003] Currently, corrugated cardboard is mostly transported using rubber roller conveyors during the manufacturing process. These conveyors squeeze the surface of the cardboard, and due to the small contact area, they easily leave indentations on the cardboard surface, causing damage. Moreover, since different cartons use cardboard of different thicknesses, some conveyors, due to the inconvenience of height adjustment, can easily leave indentations on the cardboard surface, damaging it and reducing the conveyor line's efficiency. Therefore, in order to effectively reduce damage to cardboard during transport, a new conveying device is proposed. Utility Model Content

[0004] To address the above problems, this utility model provides a belt-type liftable corrugated cardboard conveyor that prevents damage from pressure. This device solves the problem that corrugated cardboard is easily damaged by pressure marks due to its height not being adjustable during conveying.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A belt-driven, liftable, pressure-free corrugated cardboard conveyor includes a main housing, inside which is a belt conveyor assembly for conveying corrugated cardboard. The conveyor belt of the belt conveyor assembly passes upward through the main housing, and the conveyor belt has several small holes.

[0007] An air damper is provided on the side of the main housing, and the air damper is connected to a suction source that draws air out of the main housing.

[0008] The belt conveyor assembly also includes a support swing arm, and an eccentric small ring is rotatably installed inside the main housing to support the support swing arm and adjust its height in the vertical direction.

[0009] As a further improvement to the above solution, the belt conveyor assembly also includes a driven conveyor wheel and a small conveyor shaft that rotates relative to the main housing. An active conveyor wheel is mounted on the small conveyor shaft, and the conveyor belt is installed between the active conveyor wheel and the driven conveyor wheel.

[0010] The rotating shaft of the driven conveyor wheel is set on the mounting base. The mounting base is fixed to one end of the support swing arm, and the other end of the support swing arm is provided with a support shaft that rotates relative to the main box.

[0011] As a further improvement to the above scheme, the support arms are symmetrically arranged, and a connecting rod is also provided between the two support arms.

[0012] As a further improvement to the above solution, an eccentric mounting base is fixedly provided at the bottom of the mounting base, and the eccentric mounting base is in contact with the surface of the eccentric small ring.

[0013] As a further improvement to the above scheme, the eccentric small ring is fixed on the eccentric adjustment mandrel, the eccentric adjustment mandrel is rotatably arranged with the main housing, and is connected to the output shaft of the geared motor located on the outside of the main housing for transmission.

[0014] As a further improvement to the above solution, the main box body includes a bellows panel, a bellows plate, a bellows bottom plate, a first bellows end plate, and a second bellows end plate that are sealed and fixed to each other.

[0015] The top of the bellows panel has an opening to allow the conveyor belt to extend upwards.

[0016] As a further improvement to the above solution, the main housing also includes a base, which penetrates the bellows plate and is fixed to the bottom plate of the bellows.

[0017] As a further improvement to the above solution, an air outlet is connected to the damper.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. By setting the main box body into a sealed structure and connecting the suction source to the damper, negative pressure can be generated inside the main box body. Therefore, under the action of automatic and atmospheric pressure, the contact pressure between the corrugated cardboard and the conveyor belt can be increased, thereby increasing the friction between the corrugated cardboard and the conveyor belt and realizing the precise conveying of the corrugated cardboard.

[0020] 2. In this application, the rubber wheel for conveying corrugated cardboard is replaced with a belt, which increases the contact area between the conveyor and the corrugated cardboard, changing the original line contact to surface contact. Therefore, the pressure on the surface of the corrugated cardboard can be significantly reduced, thereby avoiding the formation of indentations on the surface of the corrugated cardboard and reducing the possibility of being crushed.

[0021] 3. Driven by a geared motor, the eccentric adjusting mandrel and eccentric ring can be rotated, thus adjusting the contact position between the eccentric ring and the eccentric mounting base. During the rotation of the eccentric ring, it can push the eccentric mounting base and mounting seat upwards. Under the action of the support shaft and support swing arm, the other end of the support swing arm rotates around the support shaft, thus pushing the driven conveyor wheel upwards around the central axis of the support shaft. When the cardboard thickness is different, it can be adjusted to a corresponding and consistent conveying height according to the requirements of the subsequent printing mechanism, achieving smooth and accurate connection, reducing paper collisions, and improving accurate conveying precision. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the installation process of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 for Figure 2 A top-down structural diagram.

[0025] In the diagram: 1. Supporting swing arm; 2. Supporting rotating shaft; 3. Mounting base; 4. Eccentric mounting base; 5. Eccentric small ring; 6. Eccentric adjusting spindle; 7. Gear motor; 8. Driven conveyor wheel; 9. Driven conveyor wheel; 10. Conveyor belt; 11. Base; 12. Conveyor shaft; 13. Connecting rod; 14. Air box panel; 15. Air box plate; 16. Air box bottom plate; 17. First air box end plate; 18. Second air box end plate; 19. Intermediate partition; 20. Air outlet; 21. Air damper. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0027] like Figure 1-3 As shown, the specific solution of this embodiment is: a belt-type liftable corrugated cardboard conveyor that is free from pressure damage, including a main box body. Specifically, the main box body is a three-dimensional box-shaped structure, including a bellows panel 14, a bellows plate 15, a bellows bottom plate 16, a first bellows end plate 17, and a second bellows end plate 18 that are sealed and fixed to each other.

[0028] The main housing contains a belt conveyor assembly for transporting corrugated cardboard. The conveyor belt 10 passes upward through the main housing, and the conveyor belt 10 has several small holes, such as... Figure 3As shown, the top of the bellows panel 14 is provided with an opening to facilitate the upward extension of the conveyor belt 10, so that the conveyor belt 10 can be exposed upward to make contact with the surface of the corrugated cardboard.

[0029] A damper 21 is provided on the side of the main housing. Specifically, the damper 21 can be located on the first air box end plate 17 or the second air box end plate 18. The damper 21 is connected to a suction source for drawing air out of the main housing. Specifically, an air outlet 20 is connected to the damper 21, and the air outlet 20 is connected to a suction fan. Therefore, in this embodiment, by suctioning the main housing with the suction fan, a negative pressure can be generated inside the main housing, thereby adsorbing the corrugated cardboard onto the conveyor belt 10. Under atmospheric pressure and its own weight, the corrugated cardboard can be lifted... The friction between the conveyor belt 10 and the corrugated paper prevents slippage between the conveyor belt and the corrugated paper during transport, achieving precise transport. Compared with the traditional rubber roller conveyor method, this reduces the occurrence of intaglio printing on the corrugated paper and reduces damage to the cardboard during transport. The middle partition 19 is set in the main box to divide the inner cavity of the main box into multiple spaces, ensuring that the conveyor belt 10 is located in the space where negative pressure is generated. This reduces the energy consumed during the suction process and facilitates the provision of appropriate suction pressure.

[0030] The belt conveyor assembly also includes a support swing arm 1, and an eccentric small ring 5 is rotatably installed inside the main housing to support the support swing arm 1 for height adjustment in the vertical direction. Figure 2 During the rotation of the eccentric small ring 5, it will lift the support swing arm 1, thereby causing the vertical position of the entire belt assembly to change, so as to achieve vertical height adjustment.

[0031] As a preferred embodiment of the above, the belt conveyor assembly further includes a driven conveyor wheel 8 and a small conveyor shaft 12 that is rotatably disposed relative to the main housing, such as... Figure 3 As shown, the conveyor shaft 12 is connected to the drive source, which drives the conveyor shaft 12 to rotate actively. The conveyor shaft 12 is equipped with an active conveyor wheel 9, and the conveyor belt 10 is installed between the active conveyor wheel 9 and the driven conveyor wheel 8. Therefore, during the rotation of the conveyor shaft 12, the active conveyor wheel 9, the driven conveyor wheel 8, and the conveyor belt 10 are driven to move, thereby realizing the transmission of corrugated cardboard.

[0032] In a preferred embodiment of the above, the rotating shaft of the driven conveying wheel 8 is mounted on the mounting base 3. The mounting base 3 is fixed to one end of the supporting swing arm 1, and the other end of the supporting swing arm 1 is provided with a supporting rotating shaft 2 that rotates relative to the main housing. Figure 3The supporting swing arms 1 are symmetrically arranged, and a connecting rod 13 is provided between the two supporting swing arms 1. The connecting rod 13 mainly serves to connect and fix the two supporting swing arms 1 together. An eccentric mounting seat 4 is fixedly installed at the bottom of the mounting base 3. The eccentric mounting seat 4 is in contact with the surface of the eccentric small ring 5. The eccentric small ring 5 is fixed on the eccentric adjusting spindle 6. The eccentric adjusting spindle 6 is rotatably arranged with the main housing and is connected to the output shaft of the reduction motor 7 located on the outside of the main housing. Specifically, in the process of adjusting the height, the rotation of the reduction motor 7 is controlled to drive the eccentric adjusting spindle 6 and the eccentric small ring 5 to rotate together. During the rotation of the eccentric small ring 5, it can lift the eccentric mounting seat 4 upwards, thereby causing the eccentric mounting seat 4, the mounting seat 3, and the support swing arm 1 to swing up and down around the central axis of the support shaft 2. This achieves the function of controlling their vertical lifting height. This allows the height to be consistent with the subsequent printing press and other conveying heights according to the thickness of the cardboard, achieving seamless connection. It also reduces the indentation on the cardboard during the traditional rubber wheel conveying process. Furthermore, since the center distance between the driven conveyor wheel 8 and the active conveyor wheel 9 does not change, the tension of the conveyor belt 10 will not change during the height adjustment process, thus not affecting the accuracy of the conveying.

[0033] As a preferred embodiment of the above, the main housing also includes a base 11, which penetrates the bellows plate 15 and is fixed to the bellows base plate 16. The base 11 provides support for the entire main housing and facilitates the support and installation of the main housing.

[0034] It should be noted that, in this document, the terms "including," "comprising," 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 a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A belt-driven, liftable, pressure-resistant corrugated cardboard conveyor, comprising a main housing, wherein a belt conveyor assembly for conveying corrugated cardboard is disposed within the main housing, characterized in that, The conveyor belt (10) of the belt conveyor assembly passes upward through the main housing, and the conveyor belt (10) is provided with several small holes; A damper (21) is provided on the side of the main housing, and the damper (21) is connected to a suction source for drawing air out of the main housing; The belt conveyor assembly also includes a support swing arm (1), and an eccentric small ring (5) is rotatably provided in the main housing to support the support swing arm (1) for height adjustment in the up and down direction.

2. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to claim 1, characterized in that, The belt conveyor assembly also includes a driven conveyor wheel (8) and a conveyor shaft (12) that rotates relative to the main housing. A drive conveyor wheel (9) is provided on the conveyor shaft (12), and the conveyor belt (10) is installed between the drive conveyor wheel (9) and the driven conveyor wheel (8). The rotating shaft of the driven conveyor wheel (8) is set on the mounting base (3). The mounting base (3) is fixed to one end of the support arm (1), and the other end of the support arm (1) is provided with a support shaft (2) that rotates with the main box.

3. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to claim 2, characterized in that, The support arms (1) are symmetrically arranged, and a connecting rod (13) is also provided between the two support arms (1).

4. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to claim 2, characterized in that, An eccentric mounting base (4) is fixedly provided at the bottom of the mounting base (3), and the surface of the eccentric mounting base (4) is in contact with the surface of the eccentric small ring (5).

5. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to claim 1, characterized in that, The eccentric small ring (5) is fixed on the eccentric adjustment mandrel (6). The eccentric adjustment mandrel (6) is rotatably arranged with the main housing and is connected to the output shaft of the geared motor (7) located on the outside of the main housing.

6. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to any one of claims 1-5, characterized in that, The main box body includes a bellows panel (14), a bellows plate (15), a bellows bottom plate (16), a first bellows end plate (17), and a second bellows end plate (18) that are sealed and fixed to each other. The top of the bellows panel (14) is provided with an opening to facilitate the upward extension of the conveyor belt (10).

7. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to claim 6, characterized in that, The main body also includes a base (11), which penetrates the bellows plate (15) and is fixed to the bottom plate (16) of the bellows.

8. The belt-type liftable corrugated cardboard conveyor with anti-crushing function according to any one of claims 1-5, characterized in that, The damper (21) is connected to the air outlet (20).