Corrugated board turnover machine
By combining the input belt, output belt, and flipping section, along with high-pressure gas assistance, the problem of excessive local pressure caused by small contact area during corrugated cardboard flipping is solved, achieving undamaged cardboard flipping and ensuring the quality of the finished product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional corrugated cardboard flipping machines have limited contact area during the flipping process, which can lead to excessive local pressure, causing indentations or structural deformation of the cardboard face paper and affecting the quality of the finished product.
It adopts a combination structure of input belt, output belt and flipping part. The flipping part has a large contact area with the cardboard and a short flipping stroke. High pressure gas is sprayed out through the air outlet on the flipping part to assist the cardboard flipping and reduce local stress concentration.
This effectively prevents localized damage to corrugated cardboard, ensures finished product quality, and achieves a smooth flipping process.
Smart Images

Figure CN224091251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated cardboard flipping technology, specifically to a corrugated cardboard flipping machine. Background Technology
[0002] A corrugated cardboard flipping machine is a crucial piece of equipment in the corrugated cardboard printing process. Traditional corrugated cardboard flipping machines often use mechanical grippers or rigid structures to hold and flip the cardboard. When flipping the cardboard, the contact area between the machine and the cardboard is limited, and the flipping process is relatively long, which can easily lead to excessive pressure in certain areas. This can cause indentations or structural deformation of the corrugated cardboard face paper, affecting the quality of the finished product. To solve the above problems, this utility model provides a corrugated cardboard flipping machine. Utility Model Content
[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a corrugated cardboard flipping machine that completes the flipping of the cardboard during the conveying process through a flipping section. The flipping section has a large contact area with the cardboard, and the flipping stroke of the cardboard is short, thereby avoiding damage to the cardboard and affecting its quality.
[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a corrugated cardboard flipping machine, comprising:
[0005] Base;
[0006] An input belt, which is installed inside the base;
[0007] An output belt, which is installed inside the base;
[0008] A flipping section is located between the input belt and the output belt, and the flipping section is rotatably mounted inside the base;
[0009] In this process, the cardboard to be flipped is conveyed to the flipping unit by the input belt, and the flipping unit drives the cardboard on it to flip onto the output belt.
[0010] Preferably, the end of the input belt near the flipping part is inclined downward to form a slope.
[0011] Preferably, the output belt is inclined, with the height of the end near the flipping part being lower than the height of the end away from the flipping part.
[0012] Preferably, the height of the input belt near the flipping part, the height of the connection between the flipping part and the base, and the height of the output belt near the flipping part decrease sequentially.
[0013] Preferably, both sides of the flipping part are provided with slots for carrying cardboard.
[0014] Preferably, the slot is V-shaped.
[0015] Preferably, the interior of the flipping part is provided with a cavity, and multiple air outlets are provided on the two side walls of the cavity. The cavity is connected to an air inlet pipe fixedly connected to one end face of the flipping part, and the air inlet pipe passes through the base and is connected to an external air pump.
[0016] Preferably, the cavity is provided with a sealing plate, which slides inside the cavity by its own gravity as the flipping part rotates.
[0017] Preferably, multiple counterweights are fixedly connected to both sides of the sealing plate, and the multiple counterweights are adapted to multiple air outlets.
[0018] Preferably, the output belt has protrusions on its body to increase friction.
[0019] The beneficial effects of this utility model are as follows:
[0020] This invention, through the arrangement of an input belt, an output belt, and a flipping section, avoids the problem of localized stress concentration caused by the long stroke and small force area of traditional clamping and flipping methods when flipping the cardboard during the conveying process. This prevents indentation or structural deformation of the corrugated cardboard face paper and ensures the quality of the finished product.
[0021] This invention, through the design of a flipping section and an air outlet, enables the air outlet to spray high-pressure gas outward when the flipping section flips the cardboard onto the output belt, thereby blowing the cardboard toward the output belt and allowing the flipped cardboard to be transported more effectively by the output belt. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A structural schematic diagram (first perspective) of a corrugated cardboard flipping machine provided for an embodiment of this utility model.
[0024] Figure 2 A structural schematic diagram (second perspective) of a corrugated cardboard flipping machine provided for an embodiment of this utility model.
[0025] Figure 3 This is a cross-sectional view of the present invention.
[0026] Figure 4 This utility model Figure 3 Enlarged view of point A.
[0027] Figure 5 This is a schematic diagram of the structure of the flipping part of this utility model.
[0028] Figure 6 This is an exploded view of the flipping part and sealing plate of this utility model.
[0029] Figure 7 This is a schematic diagram of the rotation state of the flipping part of this utility model.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Base, 2. Input belt, 3. Output belt, 4. Tilting part, 5. Slot, 6. Cavity, 7. Air outlet, 8. Air inlet pipe, 9. Sealing plate, 10. Counterweight, 11. Input motor, 12. Output motor, 13. Tilting motor. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] This utility model provides a corrugated cardboard flipping machine, such as Figures 1 to 7 As shown.
[0034] Example 1:
[0035] A corrugated cardboard flipping machine includes a base 1. An input belt 2, an output belt 3, and a flipping part 4 are installed inside the base 1. The input belt 2 and the output belt 3 are located at opposite ends inside the base 1, and the flipping part 4 is located between the input belt 2 and the output belt 3. The input belt 2 is driven by an input motor 11, the output belt 3 is driven by an output motor 12, and the flipping part 4 is driven by a flipping motor 13. The input motor 11, the output motor 12, and the flipping motor 13 are all mounted on the base 1, and the input motor 11, the output motor 12, and the flipping motor 13 are connected to an external power source via cables.
[0036] The cardboard to be flipped is conveyed to the flipping unit 4 via the input belt 2, and then the flipping unit 4 drives the cardboard to flip onto the output belt 3. Finally, the output belt 3 transports the flipped cardboard out.
[0037] The flipping part 4 is a long rod-shaped structure that is rotatably installed inside the base 1. Slots 5 are provided on both sides of the flipping part 4. One end of the cardboard that is conveyed to the flipping part 4 by the input belt 2 will be inserted into the slot 5. Then the flipping part 4 will rotate, thereby causing the cardboard located inside the slot 5 to flip onto the output belt 3, thus completing the flipping operation of the cardboard.
[0038] The slot 5 is V-shaped, which allows the flip part 4 to be used with cardboard of a certain thickness (i.e., the thickness of the cardboard is less than the width of the opening of the slot 5).
[0039] Each time the flip motor 13 starts, it drives the flip section 4 to rotate 180 degrees, so that the two slots 5 can sequentially pick up the cardboard conveyed by the input belt 2 when the flip section 4 rotates.
[0040] Example 2:
[0041] Based on Embodiment 1, in order to make the cardboard move more smoothly, the end of the input belt 2 near the flipping part 4 is set as a downward inclined surface. When the cardboard moves to the inclined surface, the cardboard will become inclined under its own gravity and then be transported to the flipping part 4 by the input belt 2.
[0042] The output belt 3 is inclined, with the end closer to the flipping part 4 being lower than the end farther from the flipping part 4. When the flipping part 4 flips the cardboard onto the output belt 3, the output belt 3 can better transport the cardboard out of the interior of the flipping part 4. Furthermore, multiple protrusions are provided on the belt body of the output belt 3. The protrusions can increase the friction between the belt body of the output belt 3 and the cardboard, thereby enabling the output belt 3 to transport the cardboard more stably.
[0043] Example 3:
[0044] Based on Embodiment 2, in order to enable the cardboard on the flipping part 4 to move better onto the output belt 3, a cavity 6 is provided inside the flipping part 4. Multiple air outlets 7 are provided on both sides of the cavity 6. The air outlets 7 communicate with the slot 5. The cavity 6 communicates with the air inlet pipe 8 fixedly connected to one end face of the flipping part 4. The air inlet pipe 8 passes through the base 1 and extends to the outside of the base 1. The air inlet pipe 8 is rotatably connected to the base 1. The air inlet pipe 8 is connected to an external air pump. The air inlet pipe 8 and the air pump's air supply line are connected by a rotary seal, so that the gas supply will not be affected during the rotation of the flipping part 4.
[0045] When the flipping part 4 is as follows Figure 7 The state shown in -B will transition to the state shown in the image. Figure 7When the state shown in -C is activated, the external air pump is turned on. At this time, air will enter the cavity 6 through the air inlet pipe 8 and finally be ejected through the air outlet 7, thereby blowing the cardboard inside the slot 5 onto the output belt 3.
[0046] In order to make the air ejected through the air outlet 7 more effective at blowing the cardboard, a sealing plate 9 is installed inside the cavity 6. During the rotation of the flipping part 4, the sealing plate 9 will slide downward under its own gravity, thereby blocking the air outlet 7 located at the bottom after rotation, so that the air can only be discharged through the air outlet 7 at the top, which can increase the pressure of the ejected gas and make it more effective at blowing the cardboard.
[0047] In order to make the sealing plate 9 slide more quickly inside the cavity 6, multiple counterweights 10 are fixedly set on both sides of the sealing plate 9 to increase the weight of the sealing plate 9. At the same time, the multiple counterweights 10 are adapted to the multiple air outlets 7. After the sealing plate 9 falls, the counterweights 10 can be inserted into the air outlets 7, so that the sealing plate 9 can better seal the lower air outlets 7, and allow the gas to be discharged better through the upper air outlets 7.
[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A corrugated cardboard flipping machine, characterized in that, include: Base (1); Input belt (2), the input belt (2) is installed inside the base (1); Output belt (3), the output belt (3) is installed in the base (1); A flipping part (4) is located between the input belt (2) and the output belt (3), and the flipping part (4) is rotatably mounted inside the base (1); The cardboard to be flipped is conveyed to the flipping unit (4) by the input belt (2), and the flipping unit (4) drives the cardboard on it to flip onto the output belt (3).
2. The corrugated cardboard flipping machine as described in claim 1, characterized in that, The input belt (2) is inclined downward at one end near the flipping part (4) to form an inclined surface.
3. A corrugated cardboard flipping machine as described in claim 1, characterized in that, The output belt (3) is inclined, and its height near the flipping part (4) is lower than the height of the end away from the flipping part (4).
4. A corrugated cardboard flipping machine as described in claim 1, characterized in that, The height of the input belt (2) near the flipping part (4), the height of the flipping part (4) connected to the base (1), and the height of the output belt (3) near the flipping part (4) decrease sequentially.
5. A corrugated cardboard flipping machine as described in claim 1, characterized in that, The flipping part (4) has slots (5) on both sides for carrying the cardboard.
6. A corrugated cardboard flipping machine as described in claim 5, characterized in that, The slot (5) is V-shaped.
7. A corrugated cardboard flipping machine as described in claim 6, characterized in that, The interior of the flipping part (4) is provided with a cavity (6), and multiple air outlets (7) are provided on the two side walls of the cavity (6). The cavity (6) is connected to an air inlet pipe (8) fixedly connected to one end face of the flipping part (4). The air inlet pipe (8) passes through the base (1) and is connected to an external air pump.
8. A corrugated cardboard flipping machine as described in claim 7, characterized in that, The cavity (6) is provided with a sealing plate (9), which slides inside the cavity (6) by its own gravity as the flipping part (4) rotates.
9. A corrugated cardboard flipping machine as described in claim 8, characterized in that, Multiple counterweights (10) are fixedly connected to both sides of the sealing plate (9), and the multiple counterweights (10) are matched with multiple air outlets (7).
10. A corrugated cardboard flipping machine as described in claim 1, characterized in that, The output belt (3) has protrusions on its body to increase friction.