A multi-functional roller-type cardboard processing unit

Abstract

This invention relates to a multi-functional roller-type paperboard processing unit capable of processing both sides of paperboard. This multi-functional roller-type paperboard processing unit includes roller-type paperboard processing units, characterized by: a paper feeding conveyor and four roller-type paperboard processing units; the discharge end of the first roller-type paperboard processing unit is connected to the first paperboard conveyor; the first paperboard conveyor is connected to the feed end of the second roller-type paperboard processing unit; the discharge end of the second roller-type paperboard processing unit is connected to the second paperboard conveyor; the second paperboard conveyor is connected to the feed end of the third roller-type paperboard processing unit; a third paperboard conveyor is located in front of the discharge end of the third roller-type paperboard processing unit; and the third paperboard conveyor is connected to the feed end of the fourth roller-type paperboard processing unit. This multi-functional roller-type paperboard processing unit can achieve combined processing of both sides of paperboard, improving processing efficiency.

Description

Technical Field

[0001] This invention relates to a paperboard processing device, specifically a device for slotting, cutting, or slitting paperboard. Background Technology

[0002] A cardboard slitting machine is a device that cuts large cardboard into smaller pieces. Depending on the requirements, it can slit the cardboard longitudinally or laterally. A cardboard cutting machine is a device that cuts lines into cardboard. Depending on the requirements, it can cut lines at a specific location on one side of the cardboard, or at the four corners of one side, to overlap with the subsequent slotting positions and remove the corners. A cardboard slotting machine is a device that slots cardboard. Depending on the requirements, it can slot at a specific location on the cardboard, or create V-shaped grooves on the other side of the cardboard that coincide with the cut lines. This causes the four corners of the cardboard to chip off, making the cardboard suitable for making gift boxes and other types of boxes.

[0003] Existing cardboard slitting machines (Announcement No. CN111975847A), cardboard ribbing machines (Announcement No. CN217916979U), and cardboard slotting machines (Announcement No. CN219544142U) all employ roller-type structures and are independent units. The cardboard slitting machine cuts the cardboard, which is then manually transferred to the ribbing machine for ribbing, followed by slotting, resulting in a finished cardboard product with trimmed corners. Because these are all independent units, it's impossible to combine slitting, ribbing, and slotting processes according to requirements. This traditional processing method requires a large amount of manpower, and the time spent transferring cardboard between workstations negatively impacts processing efficiency.

[0004] To address the aforementioned issues, existing technologies include processing units that combine cardboard slotting machines, cardboard cutting machines, or cardboard slitting machines. However, since the required processes are completed on one side of the cardboard, existing processing units typically use upper and lower pressure rollers at the inlet and outlet positions for conveying (instead of using a belt and large rollers). Reverse processing cutters are placed along the conveying path. Due to the tension of the upper and lower pressure rollers, cardboard slippage and deviation can occur when cutting at points of greater resistance, affecting processing accuracy and the overall design of the gift box. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention innovatively provides a multi-functional roller-type paperboard processing unit that can perform combined processing on both sides of paperboard.

[0006] This multi-functional roller-type paperboard processing unit includes a roller-type paperboard processing unit, which comprises a frame, rollers, a pressure belt, guide rollers, and cutters. The pressure belt is partially attached to the roller under the action of the guide rollers. The cutters are located on the side of the roller that is attached to the pressure belt. An inlet and an outlet are formed between the pressure belt and the roller, and the inlet and outlet are arranged vertically. The unit is characterized by including a paper feeding conveyor, a first roller-type paperboard processing unit, a second roller-type paperboard processing unit, a third roller-type paperboard processing unit, and a fourth roller-type paperboard processing unit. The paper feeding conveyor is connected to the inlet end of the first roller-type paperboard processing unit, with the inlet end of the first roller-type paperboard processing unit located below and the outlet end located above. The outlet end of the first roller-type paperboard processing unit is connected to a first paperboard conveying device, and the conveying direction of the first paperboard conveying device is the same as that of the first roller-type paperboard processing unit. The material directions intersect. The first paperboard conveying device is connected to the feed end of the second roller-type paperboard processing unit, with the feed end of the second roller-type paperboard processing unit located above and the discharge end of the second roller-type paperboard processing unit located below. The discharge end of the second roller-type paperboard processing unit is connected to the second paperboard conveying device. The second paperboard conveying device is connected to the feed end of the third roller-type paperboard processing unit, with the feed end of the third roller-type paperboard processing unit located above and the discharge end of the third roller-type paperboard processing unit located below. A third paperboard conveying device is located in front of the discharge end of the third roller-type paperboard processing unit, with the conveying direction of the third paperboard conveying device intersecting the discharge direction of the third roller-type paperboard processing unit. The third paperboard conveying device is connected to the feed end of the fourth roller-type paperboard processing unit, with the feed end of the fourth roller-type paperboard processing unit located below and the discharge end of the fourth roller-type paperboard processing unit located above.

[0007] The cutting tool is a grooving tool, a slitting tool, or a cutting tool.

[0008] The first roller-type paperboard processing unit has a cutting tool, the second roller-type paperboard processing unit has a cutting tool, the third roller-type paperboard processing unit has a slotting tool, and the fourth roller-type paperboard processing unit has a slotting tool.

[0009] The second paperboard conveying device connects from the discharge end of the second roller paperboard processing unit to the feed end of the third roller paperboard processing unit, from low to high.

[0010] The second paperboard conveyor passes over the paper feed conveyor.

[0011] The first roller-type paperboard processing unit has a fourth paperboard conveying device at its discharge end. The fourth paperboard conveying device is connected to the first paperboard conveying device. The conveying direction of the fourth paperboard conveying device is the same as the discharge direction of the first roller-type paperboard processing unit. The conveying direction of the fourth paperboard conveying device intersects with the conveying direction of the first paperboard conveying device. The first paperboard conveying device is equipped with a first baffle plate, which faces the conveying direction of the fourth paperboard conveying device.

[0012] The third cardboard conveying device is equipped with a second baffle plate, which faces the discharge direction of the third roller cardboard processing unit.

[0013] The discharge end of the fourth roller-type paperboard processing unit is connected to the paper conveying device.

[0014] The paper feeder passes over the second cardboard feeder.

[0015] The feed position of the paper feeding device is on the right side.

[0016] According to the present invention, a multi-functional roller-type paperboard processing unit is provided, which links four roller-type paperboard processing units through a connecting conveyor device, thereby realizing the combined processing of the front and back sides of the paperboard, reducing labor costs and improving processing efficiency. Attached Figure Description

[0017] Figure 1 A three-dimensional view showing the layout of four roller-type cardboard processing units;

[0018] Figure 2 A cross-sectional view of a single roller-type paperboard processing unit;

[0019] Figure 3 A top view showing the layout of four roller-type paperboard processing units;

[0020] Figure 4 Example 1: Paperboard processing flow chart showing the layout of four roller-type paperboard processing units;

[0021] Figure 5 A diagram illustrating the folding of cardboard with double-sided slotted cut lines;

[0022] Figure 6 A schematic diagram of the paperboard slitting principle for a single roller-type paperboard processing unit;

[0023] Figure 7 A schematic diagram of the cardboard slotting principle for a single roller-type cardboard processing unit;

[0024] Figure 8 A schematic diagram of the paperboard cutting principle for a single roller-type paperboard processing unit;

[0025] Figure 9 A top view of an embodiment of a layout with five roller-type paperboard processing units;

[0026] Figure 10 Example 3 top view of the layout of five roller-type paperboard processing units. Detailed Implementation

[0027] like Figure 1 As shown, this multi-functional roller-type paperboard processing unit consists of four roller-type paperboard processing units A. Figure 2 As shown, each roller-type cardboard processing unit A includes a frame 10, a roller 11, a pressing belt 13, a guide roller 14, and a cutter 12. The pressing belt 13 is partially attached to the roller 11 under the action of the guide roller 14 (there are multiple guide rollers 14, which can guide the pressing belt 13, and there are also tension rollers, which can tension the pressing belt 13, which is the prior art). The cutter 12 is located on the side of the roller 11 that is attached to the pressing belt 13, and a feed port is formed between the pressing belt 13 and the roller 11. The inlet and outlet are positioned vertically relative to the outlet (when the inlet is on top, the outlet is on the bottom; when the inlet is on the bottom, the outlet is on top). During operation, the cardboard enters through the inlet between the pressure belt 13 and the roller 11. Under the action of the pressure belt 13, the cardboard adheres to the roller 11. As the roller 11 and the pressure belt 13 rotate together, the cardboard moves, and the cutter 12 processes the cardboard (the type and number of cutters are changed according to the processing requirements). The processing methods of the cutter 12 include grooving, slitting, or cutting. Furthermore, a single roller-type cardboard processing unit A can be equipped with multiple different types of cutters as needed (for example, a grooving cutter and a slitting cutter can be installed simultaneously on one roller-type cardboard processing unit A).

[0028] Since the roller-type paperboard processing unit A moves the paperboard by pressing the paper belt 13 and the roller 11 together, the paperboard moves more stably and will not slip or deviate. The paperboard can be precisely processed whether it is slotting, cutting or slitting.

[0029] As mentioned above, the processing methods for cardboard include slotting, slitting, or cutting; therefore, the cutting tool 12 is a slotting tool, a slitting tool, or a cutting tool. The slotting tool can slot the cardboard (e.g.,...). Figure 7 As shown), the slitting tool can cut lines on the cardboard (e.g. Figure 8 As shown), the slitting blade can slit the cardboard (e.g. Figure 6(As shown). The grooving tool is formed by two blades that form a V-shape, capable of creating V-shaped grooves. It can also be a U-shaped blade to create U-shaped grooves. A power source drives the grooving tool to move back and forth, enabling partial grooving. The ribbing tool can be a single blade, driven by a motor to move back and forth, capable of cutting partial ribbing. A semi-circular blade can also be used to cut partial ribbing (see patent publication number CN217916979U). Alternatively, it can be composed of a transverse cutter and a longitudinal cutter forming an L-shape (see patent publication number CN217916979U), capable of cutting L-shaped ribbing. The slitting tool is generally a single blade, capable of splitting the cardboard in half.

[0030] To process both the front and back sides of the cardboard, this multi-functional roller-type cardboard processing unit includes a paper feeding conveyor 1 (existing technology, which conveys the cardboard forward via a belt or roller), a first roller-type cardboard processing unit A1, a second roller-type cardboard processing unit A2, a third roller-type cardboard processing unit A3, and a fourth roller-type cardboard processing unit A4. The paper feeding conveyor 1 is connected to the feed end of the first roller-type cardboard processing unit A1, with the feed end of the first roller-type cardboard processing unit A1 located below and the discharge end of the first roller-type cardboard processing unit A1 located above. The discharge end of the first roller-type cardboard processing unit A1 is connected to the first cardboard conveyor B1, with the conveying direction of the first cardboard conveyor B1 intersecting the discharge direction of the first roller-type cardboard processing unit A1. The first cardboard conveyor B1 is connected to the feed end of the second roller-type cardboard processing unit A2. Next, the feeding end of the second roller-type paperboard processing unit A2 is located at the top, and the discharging end of the second roller-type paperboard processing unit A2 is located at the bottom. The discharging end of the second roller-type paperboard processing unit A2 is connected to the second paperboard conveying device B2. The second paperboard conveying device B2 is connected to the feeding end of the third roller-type paperboard processing unit A3. The feeding end of the third roller-type paperboard processing unit A3 is located at the top, and the discharging end of the third roller-type paperboard processing unit A3 is located at the bottom. A third paperboard conveying device B3 is located in front of the discharging end of the third roller-type paperboard processing unit A3. The conveying direction of the third paperboard conveying device B3 intersects with the paper discharge direction of the third roller-type paperboard processing unit A3. The third paperboard conveying device B3 is connected to the feeding end of the fourth roller-type paperboard processing unit A4. The feeding end of the fourth roller-type paperboard processing unit A4 is located at the bottom, and the discharging end of the fourth roller-type paperboard processing unit A4 is located at the top.

[0031] like Figure 4As shown, the processing flow of this processing unit consisting of four roller-type paperboard processing units A is as follows: The paperboard is processed in the order of 1-7. The paperboard enters from the lower feed port of the first roller-type paperboard processing unit A1. The cutter of the first roller-type paperboard processing unit A1 performs a longitudinal processing (e.g., longitudinal cutting) on ​​the front side of the paperboard. After completing one processing step, the paperboard exits from the upper discharge port of the first roller-type paperboard processing unit A1 and is conveyed by the first connecting conveyor B1. The paperboard then enters again from the upper feed port of the second roller-type paperboard processing unit A2. The cutter of the second roller-type paperboard processing unit A2 performs a second transverse processing (e.g., transverse cutting) on ​​the front side of the paperboard. After completing the second processing step, the paperboard exits from the lower discharge port of the second roller-type paperboard processing unit A2 and is conveyed by the second connecting conveyor B1. Following the conveyor B2, the cardboard is fed again from above the third roller-type cardboard processing unit A3, allowing it to flip over. The cutters in the third roller-type cardboard processing unit A3 perform three transverse processing steps (e.g., transverse grooving) on ​​the reverse side of the cardboard. After these three processing steps, the cardboard exits from the lower outlet of the third roller-type cardboard processing unit A3. Then, conveyed by the third connecting conveyor B3, the cardboard enters again from the lower inlet of the fourth roller-type cardboard processing unit A4. The cutters in the fourth roller-type cardboard processing unit A4 perform four longitudinal processing steps (e.g., longitudinal grooving) on ​​the reverse side of the cardboard. Finally, the cardboard exits from the upper outlet of the fourth roller-type cardboard processing unit A4 and enters the paper output conveyor 2, which then delivers the processed cardboard. Figure 4 As shown, after the cardboard is cut on the front twice and slotted on the back twice, the four corners of the cardboard fall off because the cut lines and slots overlap.

[0032] This layout of four roller-type paperboard processing units (A1) allows for convenient feeding of the paperboard from the lower inlet of the first roller-type paperboard processing unit (A1) and convenient stacking and collection of the processed paperboard from the upper outlet of the fourth roller-type paperboard processing unit (A4). Furthermore, since feeding and collecting are done on the same side, it facilitates manual operation. This layout is more practical and user-friendly.

[0033] As described above, to achieve the corner trimming of the cardboard, the first roller-type cardboard processing unit A1 uses a slitting cutter (to cut longitudinal lines on the front of the cardboard), the second roller-type cardboard processing unit A2 uses a slitting cutter (to cut transverse lines on the front of the cardboard), the third roller-type cardboard processing unit A3 uses a slotting cutter (to slot transversely on the back of the cardboard), and the fourth roller-type cardboard processing unit A4 uses a slotting cutter (to slot longitudinally on the back of the cardboard). The longitudinal lines (partially) on the front of the cardboard and the longitudinal slots on the back are aligned on the same line, as are the transverse lines (partially) on the front and the transverse slots on the back. This allows the four corners of the cardboard to be trimmed off for gift box production.

[0034] Some boxes require a unique shape, such as Figure 5 As shown, this type of cardboard box has handles on both sides, so the cardboard needs to be grooved on the front (grooving line C1 and grooveing ​​line C2) and on the back (grooving line C3), and also needs to be cut with lines (cutting line X1 and cutting line X2). When processing this cardboard, the first roller-type cardboard processing unit A1 uses an L-shaped cutting tool to cut four L-shaped lines on the back of the cardboard (each roller-type cardboard processing unit A1 can hold multiple tools). Then, the second roller-type cardboard processing unit A2 grooves the back of the cardboard (grooving line C3), while the third roller-type cardboard processing unit A3 and the fourth roller-type cardboard processing unit A4 groove the front of the cardboard (grooving lines C1 and C2 respectively). This results in the desired cardboard shape. Figure 5 The cardboard shown.

[0035] Of course, the cutters of all four roller-type paperboard processing units A can be slotting cutters, which can slot both the front and back of the paperboard to produce paperboard with horizontal and vertical slots on both sides. In addition, the first three roller-type paperboard processing units A can complete the cutting and / or slotting of the paperboard, and the last roller-type paperboard processing unit A cuts the paperboard, so that a large piece of paperboard can be transformed into smaller pieces of paperboard with cutting or slotting.

[0036] The connecting conveyor device B (including the first connecting conveyor device B1, the second connecting conveyor device B2, and the third connecting conveyor device B3) is a linear conveyor device. The linear conveyor device can be a belt conveyor device as in the prior art or a roller conveyor device composed of multiple rollers, and is equipped with a correction mechanism (see announcement number CN202967637U) to prevent the paperboard from shifting when it enters the roller-type paperboard processing unit A, thus ensuring processing accuracy (so that the cutting line and the slotting can coincide).

[0037] The second paperboard conveyor B2 connects from the discharge end of the second roller-type paperboard processing unit A2 to the feed end of the third roller-type paperboard processing unit A3, rising from low to high. Furthermore, the second paperboard conveyor B2 passes over the feed conveyor 1. This design optimizes the transition space of the equipment, making the entire machine more compact (reducing the floor space required). Simultaneously, the second paperboard conveyor B2 avoids interference with the feed conveyor 1. This allows all four roller-type paperboard processing units A to be manufactured to the same specifications (i.e., standardized), significantly reducing manufacturing and maintenance costs.

[0038] Because some cardboard is too small, it cannot directly exit from the discharge port of the first roller-type cardboard processing unit A1 and enter the first cardboard conveyor B1. Therefore, as Figure 1 As shown, a fourth paperboard conveying device B4 is located in front of the discharge port of the first roller-type paperboard processing unit A1. This fourth conveying device B4 is connected to the first conveying device B1, and its conveying direction is the same as the discharge direction of the first roller-type paperboard processing unit A1. The conveying directions of the fourth conveying device B4 and the first conveying device B1 intersect (forming an L-shape). A first baffle plate 19 is located on the first conveying device B1, facing the conveying direction of the fourth conveying device B4. When the paperboard exits the discharge port of the first roller-type paperboard processing unit A1, it first enters the fourth conveying device B4, which conveys it forward. Then, the paperboard enters the first conveying device B1, where it is stopped by the first baffle plate 19, stopping it in the forward-backward direction. In this way, the first conveying device B1 delivers the paperboard to the second roller-type paperboard processing unit A2.

[0039] like Figure 1 As shown, the third paperboard conveying device B3 is equipped with a second baffle plate 31, which faces the paper output direction of the third roller-type paperboard processing unit A3. The second baffle plate 31 can block the paperboard coming out of the third roller-type paperboard processing unit A3, allowing the third paperboard conveying device B3 to convey the paperboard forward.

[0040] like Figure 1 As shown, the discharge end of the fourth roller-type paperboard processing unit A4 is connected to the paper delivery conveyor 2 (the paper delivery conveyor 2 is existing technology, which conveys the paperboard forward via a belt or roller). After the paperboard is processed by the fourth roller-type paperboard processing unit A4, it enters the paper delivery conveyor 2, which then conveys the paperboard out.

[0041] like Figure 1As shown, the paper output conveyor 2 passes over the second cardboard conveyor B2. A paper receiving platform can be installed in front of the paper output conveyor 2 to collect the finished cardboard.

[0042] like Figure 1 As shown, since the second cardboard conveyor B2 is set at an angle and crosses the paper feeding conveyor 1, there will be a large height space between the right side of the paper feeding conveyor 1 and the second cardboard conveyor B2. Setting the feeding position on the right side of the paper feeding conveyor 1 is more in line with the structural design and facilitates installation and subsequent maintenance.

[0043] Finally, it is worth mentioning that this multi-functional roller-type paperboard processing unit can also employ five roller-type paperboard processing units A. For example, based on the four roller-type paperboard processing units A described above, a fifth roller-type paperboard processing unit can be added to the side or opposite side of the fourth roller-type paperboard processing unit A4 (e.g., Figure 9 and Figure 10 (As shown); Similarly, a sixth roller paperboard processing unit can be added to the side or opposite side of the fifth roller paperboard processing unit, and so on, which greatly improves the expandability of this multi-roller linkage paperboard processing unit and meets different paperboard processing needs.

Claims

1. A multifunctional roller-type paperboard processing unit, comprising a roller-type paperboard processing unit (A), wherein the roller-type paperboard processing unit (A) includes a frame (10), a roller (11), a pressing belt (13), a guide roller (14), and a cutter (12), wherein the pressing belt (13) is partially attached to the roller (11) under the action of the guide roller (14), and the cutter (12) is located on the side where the roller (11) and the pressing belt (13) are attached, wherein an inlet and an outlet are formed between the pressing belt (13) and the roller (11), and the inlet and outlet are arranged vertically; characterized in that: The system includes a paper feeding conveyor (1), a first roller-type paperboard processing unit (A1), a second roller-type paperboard processing unit (A2), a third roller-type paperboard processing unit (A3), and a fourth roller-type paperboard processing unit (A4). The paper feeding conveyor (1) is connected to the feeding end of the first roller-type paperboard processing unit (A1), with the feeding end of the first roller-type paperboard processing unit (A1) located below and the discharging end of the first roller-type paperboard processing unit (A1) located above. The discharging end of the first roller-type paperboard processing unit (A1) is connected to a first paperboard conveyor (B1), the conveying direction of the first paperboard conveyor (B1) intersecting with the discharging direction of the first roller-type paperboard processing unit (A1). The first paperboard conveyor (B1) is connected to the feeding end of the second roller-type paperboard processing unit (A2), with the feeding end of the second roller-type paperboard processing unit (A2) located above. The discharge end of the board processing unit (A2) is located at the bottom. The discharge end of the second roller-type paperboard processing unit (A2) is connected to the second paperboard conveying device (B2). The second paperboard conveying device (B2) is connected to the feed end of the third roller-type paperboard processing unit (A3). The feed end of the third roller-type paperboard processing unit (A3) is located at the top. The discharge end of the third roller-type paperboard processing unit (A3) is located at the bottom. A third paperboard conveying device (B3) is provided in front of the discharge end of the third roller-type paperboard processing unit (A3). The conveying direction of the third paperboard conveying device (B3) intersects with the discharge direction of the third roller-type paperboard processing unit (A3). The third paperboard conveying device (B3) is connected to the feed end of the fourth roller-type paperboard processing unit (A4). The feed end of the fourth roller-type paperboard processing unit (A4) is located at the bottom. The discharge end of the fourth roller-type paperboard processing unit (A4) is located at the top.

2. The multi-functional roller-type cardboard processing unit according to claim 1, characterized in that: The cutting tool (12) is a grooving tool, a slitting tool, or a cutting tool.

3. The multi-functional roller-type cardboard processing unit according to claim 2, characterized in that: The first roller-type paperboard processing unit (A1) has a cutting tool, the second roller-type paperboard processing unit (A2) has a cutting tool, the third roller-type paperboard processing unit (A3) has a slotting tool, and the fourth roller-type paperboard processing unit (A4) has a slotting tool.

4. The multi-functional roller-type cardboard processing unit according to claim 1, characterized in that: The second paperboard conveying device (B2) is connected from the discharge end of the second roller paperboard processing unit (A2) to the feed end of the third roller paperboard processing unit (A3) in a low-to-high manner.

5. The multi-functional roller-type cardboard processing unit according to claim 4, characterized in that: The second paperboard conveyor (B2) passes over the paper feed conveyor (1).

6. The multi-functional roller-type cardboard processing unit according to claim 1, characterized in that: The first roller-type paperboard processing unit (A1) is provided with a fourth paperboard conveying device (B4) at its discharge end. The fourth paperboard conveying device (B4) is connected to the first paperboard conveying device (B1) for conveying. The conveying direction of the fourth paperboard conveying device (B4) is the same as the discharge direction of the first roller-type paperboard processing unit (A1). The conveying direction of the fourth paperboard conveying device (B4) intersects with the conveying direction of the first paperboard conveying device (B1). The first paperboard conveying device (B1) is provided with a first baffle plate (19), which faces the conveying direction of the fourth paperboard conveying device (B4).

7. The multi-functional roller-type cardboard processing unit according to claim 1, characterized in that: The third cardboard conveying device (B3) is provided with a second baffle plate (31), which faces the discharge direction of the third roller cardboard processing unit (A3).

8. The multi-functional roller-type cardboard processing unit according to claim 1, characterized in that: The discharge end of the fourth roller-type paperboard processing unit (A4) is connected to the paper conveying device (2).

9. A multi-functional roller-type cardboard processing unit according to claim 8, characterized in that: The paper feeder (2) passes over the second paperboard feeder (B2).

10. The multi-functional roller-type cardboard processing unit according to claim 1, characterized in that: The feeding position of the paper feeding device (1) is on the right side.

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