Broken carton recycling device for carton packaging
By combining crushing and screening mechanisms and utilizing the cooperation of a rotating disk and a moving column, the problem of uneven paper size was solved, achieving uniform paper crushing and improving the efficiency of pulp preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI HANLIPU PAPER PACKAGING CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-19
AI Technical Summary
Existing cardboard recycling equipment produces unevenly sized paper scraps after shredding the cardboard, resulting in inconsistent mixing times during pulp preparation and affecting efficiency.
The design combines a crushing mechanism and a screening mechanism. The drive motor drives the rotating shaft and crushing blades to crush the paper, and the rotating disc and moving column work together to make the screen cylinder move up and down to screen the paper pieces and ensure that the paper pieces are of uniform size.
This resulted in more uniform paper fragment sizes after shredding, facilitating subsequent pulp preparation and improving the efficiency and consistency of the pulping process.
Smart Images

Figure CN224253029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box recycling, specifically a device for recycling damaged cardboard boxes used in cardboard packaging. Background Technology
[0002] Cardboard boxes, as widely used packaging products, encompass various types, including corrugated cardboard boxes and single-layer cardboard boxes, depending on the materials used, and come in various specifications and models. During the packaging process, damaged cardboard boxes inevitably occur, necessitating their recycling. This recycling process requires specific recycling equipment. Currently, the primary method for recycling damaged cardboard boxes is to crush them using a crushing device. The crushed cardboard is then placed in water and stirred to prepare pulp for reuse in papermaking.
[0003] Current cardboard box recycling devices for cardboard packaging, as described in patent CN220215158U, include a recycling box and a support frame. A drive motor is fixedly installed at the top of the recycling box, and a feed inlet is installed at the top of the recycling box. A rotating shaft is installed inside the recycling box and is fixedly connected to the drive motor. A shredder is provided on the outside of the rotating shaft. A collection hopper is provided inside the recycling box, and a discharge pipe is installed at the bottom of the collection hopper. The discharge pipe is connected to the collection hopper. Two sets of cleaning devices are installed on the outside of the rotating shaft.
[0004] The inventors argued that when using a rotating shredder to shred cardboard boxes, the resulting paper pieces are often of uneven size. If these unevenly sized pieces are used directly to prepare pulp, smaller pieces require only a shorter mixing time, while larger pieces require a longer mixing time. This necessitates a longer mixing time when preparing the overall pulp, making the pulp preparation process quite inconvenient. Utility Model Content
[0005] The purpose of this utility model is to provide a device for recycling damaged cardboard boxes for cardboard packaging, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A device for recycling damaged cardboard boxes for cardboard packaging, comprising:
[0008] A crushing mechanism includes an outer cylinder, inside which is a screen cylinder. Multiple screen holes are evenly opened on the outer side of the screen cylinder. A fixing ring is fixedly connected to the top of the screen cylinder. Multiple guide rods slide through the inside of the fixing ring in a ring array. Each set of guide rods is fixedly connected to the outer cylinder. A rotating shaft is rotatably connected inside the screen cylinder. Multiple crushing blades are fixedly connected to the outside of the rotating shaft in a ring array.
[0009] The screening mechanism includes a fixed cover disposed inside the outer cylinder. Multiple connecting rods are fixedly connected to the fixed cover and the inner wall of the outer cylinder in a circular array. A drive motor is fixedly connected inside the fixed cover. A rotating shaft is fixedly connected to the output end of the drive motor and is rotatably connected to the fixed cover. A hexagonal shaft is fixedly connected to the top of the rotating shaft. A hexagonal groove adapted to the hexagonal shaft is formed at the bottom of the rotating shaft, and the hexagonal shaft is inserted into the hexagonal groove. A rotating disk is fixedly connected to the outside of the rotating shaft. Multiple protrusions are fixedly connected to the top of the rotating disk in a circular array. Multiple movable columns are fixedly connected to the bottom of the screening cylinder in a circular array, and the movable columns correspond to the rotating disk.
[0010] As a further embodiment of this utility model: a support ring is fixedly connected to the outer side of the outer cylinder, and multiple columns are fixedly connected to the bottom of the support ring in a circular array.
[0011] As a further embodiment of this utility model: the top of the support ring is fixedly connected with multiple reinforcing ribs in a ring array, and each group of reinforcing ribs is fixedly connected to the outer side of the outer cylinder.
[0012] As a further embodiment of this utility model: a shielding ring is fixedly connected to the inner wall of the outer cylinder, and the shielding ring is located above the fixed ring.
[0013] As a further embodiment of this utility model: each group of movable columns is movably connected to a ball bearing at its bottom, and each group of ball bearings is in contact with the rotating disk.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] With the above-described structure, this invention utilizes the coordinated operation of a drive motor, a rotating shaft, crushing blades, and a rotating disk. When the drive motor starts, it drives the rotating shaft, hexagonal shaft, and each set of crushing blades to rotate, thus crushing the cardboard box. The rotating shaft, in turn, drives the rotating disk and each set of protrusions to rotate, causing each set of moving columns to move along the top of the rotating disk and each set of protrusions. This movement of the moving columns and the screen cylinder causes the crushed paper pieces inside the screen cylinder to vibrate, thereby screening the crushed paper pieces. Paper pieces smaller than the inner diameter of the screen holes are screened and fall, while paper pieces larger than the inner diameter of the screen holes remain inside the screen cylinder for further crushing. This results in more uniformly sized crushed paper pieces, facilitating subsequent pulp preparation. Attached Figure Description
[0016] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.
[0017] Figure 1 This is a schematic diagram of a damaged cardboard box recycling device for cardboard packaging.
[0018] Figure 2 This is a structural cross-sectional view of a damaged cardboard box recycling device for cardboard packaging.
[0019] Figure 3 A device for recycling damaged cardboard boxes used in cardboard packaging. Figure 2 A schematic diagram of the structure of part A.
[0020] Figure 4 A device for recycling damaged cardboard boxes used in cardboard packaging. Figure 2 A schematic diagram of the structure of part B.
[0021] In the diagram: 1. Crushing mechanism; 101. Outer cylinder; 102. Support ring; 103. Reinforcing rib; 104. Column; 105. Screen cylinder; 106. Screen hole; 107. Rotating shaft; 108. Crushing blade; 109. Fixing ring; 110. Guide rod; 111. Blocking ring; 2. Screening mechanism; 201. Fixing cover; 202. Drive motor; 203. Connecting rod; 204. Rotating shaft; 205. Hexagonal shaft; 206. Hexagonal groove; 207. Rotating disk; 208. Ball bearing; 209. Protrusion; 210. Moving column. Detailed Implementation
[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0023] Please see Figure 1-4 A damaged cardboard box recycling device for cardboard packaging includes a crushing mechanism 1. The crushing mechanism 1 includes an outer cylinder 101. A support ring 102 is fixedly connected to the outer side of the outer cylinder 101. Multiple reinforcing ribs 103 are fixedly connected in a ring array at the top of the support ring 102. Each set of reinforcing ribs 103 is fixedly connected to the outer side of the outer cylinder 101. The reinforcing ribs 103 are arranged to further connect and fix the support ring 102 and the outer cylinder 101, thereby improving the connection stability between the support ring 102 and the outer cylinder 101. Multiple columns 104 are fixedly connected in a ring array at the bottom of the support ring 102. The support ring 102 and the columns 104 are arranged to provide support for the outer cylinder 101.
[0024] The outer cylinder 101 has a screen cylinder 105 inside, with multiple screen holes 106 evenly distributed on its outer side. The screen cylinder 105 is designed to hold cardboard boxes to be crushed and recycled. A rotating shaft 107 is rotatably connected inside the screen cylinder 105. Multiple crushing blades 108 are fixedly connected in a ring array on the outer side of the rotating shaft 107. The rotating shaft 107 is designed to drive the crushing blades 108 to rotate when it rotates, thereby crushing the cardboard boxes inside the screen cylinder 105. A screening mechanism 2 includes a fixed cover 201 disposed inside the outer cylinder 101. Multiple connecting rods 203 are fixedly connected in a ring array between the fixed cover 201 and the inner wall of the outer cylinder 101, and the connecting rods 203 are designed to support the fixed cover 201.
[0025] A drive motor 202 is fixedly connected inside the fixed cover 201. A rotating shaft 204 is fixedly connected to the output end of the drive motor 202. The rotating shaft 204 is rotatably connected to the fixed cover 201. The drive motor 202 is configured to drive the rotating shaft 204 to rotate when the machine starts working. A hexagonal shaft 205 is fixedly connected to the top of the rotating shaft 204. A hexagonal slot 206 adapted to the hexagonal shaft 205 is opened at the bottom of the rotating shaft 107. The hexagonal shaft 205 is inserted into the hexagonal slot 206. The hexagonal shaft 205 is configured to drive the rotating shaft 107 to rotate when the rotating shaft 204 rotates. At the same time, the rotating shaft 107 can move up and down relative to the hexagonal shaft 205.
[0026] A fixing ring 109 is fixedly connected to the top of the sieve cylinder 105. Multiple guide rods 110 slide through the interior of the fixing ring 109 in a circular array. Each set of guide rods 110 is fixedly connected to the outer cylinder 101. The guide rods 110 are used to guide the up-and-down movement of the fixing ring 109 and the sieve cylinder 105. A blocking ring 111 is fixedly connected to the inner wall of the outer cylinder 101. The blocking ring 111 is located above the fixing ring 109. The blocking ring 111 is used to block the gap between the fixing ring 109 and the outer cylinder 101, thereby reducing the probability of the carton getting stuck between the fixing ring 109 and the outer cylinder 101.
[0027] A rotating disk 207 is fixedly connected to the outer side of the rotating shaft 204. Multiple protrusions 209 are fixedly connected in a circular array on the top of the rotating disk 207. The rotating disk 207 and protrusions 209 are arranged to rotate synchronously with the rotating shaft 204. Multiple movable columns 210 are fixedly connected in a circular array at the bottom of the screen cylinder 105. The movable columns 210 correspond to the rotating disk 207 and are positioned to move along the top of the rotating disk 207 and protrusions 209 when the protrusions 209 rotate, thereby driving the screen cylinder 105 to move up and down, thus achieving rapid screening of the paper sheets inside the screen cylinder 105. Each set of movable columns 210 has ball bearings 208 movably connected to its bottom. Each set of ball bearings 208 contacts the rotating disk 207. The ball bearings 208 reduce friction between the movable columns 210 and the rotating disk 207 and protrusions 209.
[0028] In use, the drive motor 202 is started, which drives the rotating shaft 204, hexagonal shaft 205, and rotating shaft 107 to rotate. When the rotating shaft 107 rotates, it drives each set of crushing blades 108 to rotate as well. Then, the cardboard box to be crushed is put into the inside of the screen cylinder 105, where it is crushed by the continuously rotating crushing blades 108. When the rotating shaft 204 rotates, it drives the rotating disk 207 and each set of protrusions 209 to rotate as well. This causes each set of balls 208 to roll along the top of the rotating disk 207 and each set of protrusions 209, thereby driving the moving column 210 and the screen cylinder 105 to move up and down. When the screen cylinder 105 moves up and down, it causes the crushed paper pieces inside the screen cylinder 105 to shake, thereby screening the crushed paper pieces. Paper pieces smaller than the inner diameter of the screen hole 106 are screened and fall down, while paper pieces larger than the inner diameter of the screen hole 106 remain inside the screen cylinder 105 to continue to be crushed, thus effectively improving the uniformity of paper crushing.
[0029] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.
Claims
1. A device for recycling damaged cardboard boxes used in cardboard packaging, characterized in that, include The crushing mechanism (1) includes an outer cylinder (101), a screen cylinder (105) is provided inside the outer cylinder (101), a plurality of screen holes (106) are evenly opened on the outer side of the screen cylinder (105), a fixing ring (109) is fixedly connected to the top of the screen cylinder (105), a plurality of guide rods (110) slide through the inside of the fixing ring (109) in a ring array, each set of guide rods (110) is fixedly connected to the outer cylinder (101), a rotating shaft (107) is rotatably connected inside the screen cylinder (105), a plurality of crushing blades (108) are fixedly connected to the outer side of the rotating shaft (107) in a ring array; The screening mechanism (2) includes a fixed cover (201) disposed inside the outer cylinder (101). Multiple connecting rods (203) are fixedly connected in a ring array between the fixed cover (201) and the inner wall of the outer cylinder (101). A drive motor (202) is fixedly connected inside the fixed cover (201). A rotating shaft (204) is fixedly connected to the output end of the drive motor (202). The rotating shaft (204) is rotatably connected to the fixed cover (201). A hexagonal bracket is fixedly connected to the top of the rotating shaft (204). The shaft (205) has a hexagonal groove (206) at the bottom of the rotating shaft (107) that is adapted to the hexagonal shaft (205). The hexagonal shaft (205) is inserted into the interior of the hexagonal groove (206). A rotating disk (207) is fixedly connected to the outside of the rotating shaft (204). Multiple protrusions (209) are fixedly connected in a ring array on the top of the rotating disk (207). Multiple movable columns (210) are fixedly connected in a ring array at the bottom of the screen cylinder (105). The movable columns (210) correspond to the rotating disk (207).
2. The damaged cardboard box recycling device for cardboard packaging according to claim 1, characterized in that, A support ring (102) is fixedly connected to the outer side of the outer cylinder (101), and multiple columns (104) are fixedly connected to the bottom of the support ring (102) in a ring array.
3. A damaged cardboard box recycling device for cardboard packaging according to claim 2, characterized in that, The top of the support ring (102) is fixedly connected with a plurality of reinforcing ribs (103) in a ring array, and each group of reinforcing ribs (103) is fixedly connected to the outer side of the outer cylinder (101).
4. A damaged cardboard box recycling device for cardboard packaging according to claim 1, characterized in that, A shielding ring (111) is fixedly connected to the inner wall of the outer cylinder (101), and the shielding ring (111) is located above the fixing ring (109).
5. A damaged cardboard box recycling device for cardboard packaging according to claim 1, characterized in that, Each set of movable columns (210) has a ball bearing (208) movably connected to its bottom, and each set of ball bearings (208) is in contact with the rotating disk (207).