Bidirectional paperboard splitting machine

Abstract

The utility model relates to a bidirectional paperboard splitting machine which is more reasonable in structure and capable of achieving stable transition of paperboards. The bidirectional paperboard dividing and cutting machine comprises two dividing and cutting mechanisms and is characterized in that each dividing and cutting mechanism comprises a machine base, a dividing and cutting knife, a dividing and cutting roller and a plurality of guide rollers, the dividing and cutting knives, the dividing and cutting rollers and the guide rollers are installed on the machine base, the dividing and cutting rollers are in transmission connection with a dividing and cutting power source driving the dividing and cutting rollers to rotate, and a paper pressing belt is wound around the guide rollers and acts on the dividing and cutting rollers. A paper pressing belt is arranged between the first slitting mechanism and the second slitting mechanism, a feed port and a discharge port are arranged between the paper pressing belt and the slitting rollers, and conveying connection between the discharge port of the first slitting mechanism and the feed port of the second slitting mechanism is achieved through a transition conveying device which is characterized in that the transition conveying device comprises a conveying frame, a conveying face and an outer side baffle, and the outer side baffle is installed on the conveying frame. The outer side baffle is located on the side, away from the first slitting mechanism, of the conveying face, a gap is formed between the outer side baffle and the edge of the conveying face, and a supporting plate is arranged between the outer side baffle and the conveying face. According to the two-way paperboard slitting mechanism, the transition conveying device is improved, so that the two-way paperboard slitting mechanism is convenient to adjust, and stable conveying of paperboards can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a cardboard cutting mechanism. Background Art

[0002] A cardboard slitting machine is a device that slits cardboard (it can also be called a slotting machine, differing in whether it cuts or not, so its structure is identical to that of a slotting machine, just the name). A bidirectional cardboard slitting machine, on the other hand, slits cardboard both horizontally and vertically. A bidirectional cardboard slitting machine generally consists of two slitting mechanisms: the first slitting mechanism performs the horizontal slitting, while the second slitting mechanism performs the vertical slitting. Each slitting mechanism includes a cutter, rollers, a belt, and multiple tensioning rollers. The belt is wrapped around these tensioning rollers, which press the belt against the rollers. The cardboard is conveyed by the cardboard conveyor and then passes between the belt and rollers. The belt bends the cardboard and places it against the rollers. The rollers rotate under the power of a power source, driving the cardboard and the belt together. The cutter is located on the side of the roller that meets the belt. As the cardboard moves, the cutter slits (or slots) the cardboard. After the first slitting mechanism completes the horizontal slitting, it is transported via a transition conveyor to the second slitting mechanism for the vertical slitting. Existing transition conveyor devices generally include a conveyor belt and two side guards on the left and right. After the cardboard exits the first slitting mechanism, it first hits the outer side guard and then falls onto the conveyor belt of the transition conveyor. To facilitate the adjustment of the side guard position to meet the conveying requirements of cardboards of different sizes, the existing side guards are installed above the conveyor belt, so that the side guards can be moved left and right. However, this structure has a problem: when the cardboard moves forward and falls, the front end of the cardboard will hit the ground first. In other words, after the front end of the cardboard hits the outer side guard and falls, it first contacts the conveyor belt. Since the conveyor belt is in a constantly moving state, the conveyor belt will first apply a forward force to the front end of the cardboard, which will easily deflect the cardboard, causing the cardboard to enter the second slitting mechanism in a skewed position, thereby affecting the longitudinal slitting of the cardboard. Summary of the Invention

[0003] In view of the deficiencies in the existing technology, the utility model innovatively provides a bidirectional cardboard slitting machine with a more reasonable structure and capable of achieving stable transition of cardboards.

[0004] This bidirectional cardboard slitting machine includes two slitting mechanisms, characterized in that: the slitting mechanism includes a machine base and a slitting knife, a slitting roller and a plurality of guide rollers installed on the machine base, the slitting roller is transmission-connected to a slitting power source that drives the slitting roller to rotate, a paper pressing belt is wound around the plurality of guide rollers, the paper pressing belt acts on the slitting roller, a feed port and a discharge port are provided between the paper pressing belt and the slitting roller, the discharge port of the first slitting mechanism and the feed port of the second slitting mechanism are connected by a transition conveying device, the discharge direction of the first slitting mechanism is perpendicular to the conveying direction of the transition conveying device, and the feed direction of the second slitting mechanism is the same as the conveying direction of the transition conveying device, characterized in that: the transition conveying device includes a conveying frame, a conveying surface and an outer baffle, the outer baffle is installed on the conveying frame, the outer baffle is located on the side of the conveying surface away from the first slitting mechanism, there is a gap between the outer baffle and the edge of the conveying surface, and there is a support plate between the outer baffle and the conveying surface.

[0005] The supporting plate is connected to the outer baffle and is located below the conveying surface.

[0006] A separation roller is installed on the conveying frame. The separation roller is located in front of the conveying surface. A separation pressure wheel is provided above the separation roller to press on the separation roller. The linear speed of the separation roller is greater than the linear speed of the conveying surface.

[0007] The conveying surface and the outer baffle are both installed on a movable seat, and the movable seat can be adjusted to move forward and backward and be installed on the conveying frame. The movable seat can move forward and backward to move away from or close to the feed port of the second slitting mechanism.

[0008] The conveying frame can be adjusted and installed on the base by being movable left and right. The conveying frame can be moved left and right to be away from or close to the discharge port of the first slitting mechanism.

[0009] An active conveying roller mechanism is provided between the discharge port of the first slitting mechanism and the transition conveying device, and the active conveying roller mechanism includes two upper and lower active conveying rollers.

[0010] An oblique guide plate is provided on the side of the active conveying roller mechanism close to the first slitting mechanism, and the oblique guide plate can guide the paperboard to between the active conveying roller mechanisms.

[0011] The inclined guide plate is connected to a rotating shaft, and the rotating shaft can be rotated and adjusted.

[0012] The transition conveying device further includes an inner baffle, a conveying space is formed between the inner baffle and the outer baffle, and the conveying surface is located between the inner baffle and the outer baffle.

[0013] The conveying frame is provided with a first sliding shaft, on which a first sliding seat is movably and adjustable. The outer baffle is mounted on the first sliding seat. The movement of the first sliding seat can make the outer baffle approach or move away from the conveying surface.

[0014] The conveying frame is provided with a second sliding shaft, and the second sliding shaft is provided with a second sliding seat which can be movably adjusted. The active conveying roller mechanism is installed on the second sliding seat. The movement of the second sliding seat can make the active conveying roller mechanism approach or move away from the conveying surface.

[0015] The conveying surface is formed by a conveying belt or a conveying roller set.

[0016] According to the bidirectional cardboard slitting mechanism provided by the utility model, by improving the transition conveying device, it is not only convenient to adjust but also can ensure the smooth conveying of cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 for Figure 1 Cross-sectional view in the AA direction;

[0019] Figure 3 It is a three-dimensional diagram of the transition conveying device. DETAILED DESCRIPTION

[0020] like Figure 1 As shown, this bidirectional cardboard slitting machine includes two slitting mechanisms 1 and 2. Figure 2 As shown, the slitting mechanism includes a base 10, a slitting blade 11 mounted on the base 10, a slitting roller 12, and multiple guide rollers 13. The slitting roller 12 is connected to a slitting power source that drives the slitting roller 12. A paper pressing belt 14 is wound around the multiple guide rollers 13. The paper pressing belt 14 acts on the slitting roller 12, and a feed port and a discharge port are provided between the paper pressing belt 14 and the slitting roller 12. The working principle of a single slitting mechanism is as follows: driven by the slitting power source, the slitting roller 12 rotates, and the cardboard enters from the feed port between the paper pressing belt 14 and the slitting roller 12. Under the pressure of the paper pressing belt 14, it adheres to the slitting roller 12. As the slitting roller 12 rotates, the slitting blade 11 cuts the cardboard.

[0021] like Figure 1As shown, after the cardboard is cut horizontally by the first slitting mechanism 1, it needs to enter the second slitting mechanism 2 for longitudinal cutting. To this end, a transition conveyor device 3 is used between the discharge port of the first slitting mechanism 1 and the feed port of the second slitting mechanism 2 to achieve conveying connection. The discharge direction of the first slitting mechanism 1 is perpendicular to the conveying direction of the transition conveyor device 3, while the feed direction of the second slitting mechanism 2 is the same as the conveying direction of the transition conveyor device 3. In this way, the cardboard coming out of the first slitting mechanism 1 can fall into the transition conveyor device 3 and be transported to the second slitting mechanism 2 through the transition conveyor device 3. Figure 3 As shown, the transition conveying device 3 includes a conveying frame 30, a conveying surface 32 and an outer baffle 33. The outer baffle 33 is installed on the conveying frame 30 and is located on the side of the conveying surface 32 away from the first slitting mechanism 1. There is a gap between the outer baffle 33 and the edge of the conveying surface 32. There is a support plate 34 between the outer baffle 33 and the conveying surface 32. Figure 3 As shown, after the cardboard B comes out of the first slitting mechanism 1, the front end B0 (that is, the outer end) of the cardboard B first hits the outer baffle 33 of the transition conveyor 3, and then the front end B0 of the cardboard B falls onto the support plate 34 (the front end B0 of the cardboard B can also fall directly onto the support plate 34 and then be blocked by the outer baffle 33). Finally, the cardboard B falls as a whole onto the conveying surface 32. Since the support plate 34 does not move, it does not give the front end B0 of the cardboard B a forward thrust. After the cardboard falls completely, the entire surface contacts the conveying surface 32. Therefore, the cardboard B will not deviate, ensuring that it can enter the second slitting mechanism 2 in a positive posture.

[0022] To facilitate installation and position adjustment of the pallet 34, it is attached to the outer baffle 33 and positioned below the conveying surface 32. When the outer baffle 33 is moved left or right, the pallet 34 moves with it. Because it is positioned below the conveying surface 32, it not only does not affect the conveying of the conveying surface 32, but also provides support for the conveying surface 32 (when the conveying surface 32 utilizes a conveyor belt), preventing cardboard from falling onto the conveying surface 32 and causing vibration that could affect conveying accuracy. Furthermore, if the pallet 34 is sufficiently wide, it will always fill the gap between the outer baffle 33 and the edge of the conveying surface 32 when adjusted left or right, ensuring a complete support surface without gaps, thereby improving the stability of cardboard transitions.

[0023] In some cases, the tails of the cardboards are stacked together or close together. In order to separate the cardboard on the conveying surface 32 from the following cardboard when it enters the front end of the conveying surface 32, the present invention installs a separation roller 35 on the conveying frame 30. The separation roller 35 is located in front of the conveying surface 32, and a separation pressure wheel 36 is installed above the separation roller 35 to press on the separation roller 35. The linear speed of the separation roller 35 is greater than the linear speed of the conveying surface 32. When a cardboard enters between the separation pressure wheel 36 and the separation roller 35, since the linear speed of the separation roller 35 is greater than the linear speed of the conveying surface 32, the cardboard will move forward quickly and enter the second slitting mechanism 2, and be separated from the following cardboard. This ensures that adjacent cardboards enter the second slitting mechanism 2 with a certain distance, thereby improving working stability.

[0024] In order to meet the transition conveying requirements of cardboards of different sizes, such as Figure 3 As shown, the conveying surface 32 and the outer baffle 33 are both mounted on a movable base 31. The movable base 31 is mounted on the conveying frame 30 and can be adjusted to move forward and backward. When the movable base 31 moves forward and backward, it can move away from or closer to the feed inlet of the second slitting mechanism 2, thereby meeting the requirements for the transition of cardboards of different sizes. When it is away from the second slitting mechanism 2, it is also convenient to install the cutting tool of the second slitting mechanism 2.

[0025] In order to facilitate the installation of cutting tools for the first slitting mechanism 1, the conveying frame 30 can be moved left and right and adjusted and installed on the base 39. When the conveying frame 30 moves left and right, it can be away from or close to the discharge port of the first slitting mechanism 1. When it is away from the first slitting mechanism 1, it can facilitate the installation of cutting tools for the first slitting mechanism 1.

[0026] Because there's a certain distance between the first slitting mechanism 1 and the intermediate conveyor 3, an active conveyor roller mechanism 4 is installed between the discharge port of the first slitting mechanism 1 and the intermediate conveyor 3 to ensure smooth and stable transfer of paperboard to the intermediate conveyor 3. The active conveyor roller mechanism 4 comprises two upper and lower active conveyor rollers. After exiting the discharge port of the first slitting mechanism 1, the paperboard first enters between the upper and lower active conveyor rollers. The active pinching action of the two active conveyor rollers ensures a smooth transfer of the paperboard to the intermediate conveyor 3.

[0027] After the cardboard comes out of the discharge port of the first slitting mechanism 1, the front end of the cardboard may tilt downward and be unable to enter between the upper and lower active conveying rollers of the active conveying roller mechanism 4. In order to ensure that the cardboard can enter between the upper and lower active conveying rollers, the utility model is provided with an inclined guide plate 5 on the side of the active conveying roller mechanism 4 close to the first slitting mechanism 1. Through the guiding effect of the inclined guide plate 5, the inclined guide plate 5 can guide the cardboard to between the active conveying roller mechanism 4.

[0028] In order to adjust the angle of the oblique guide plate 5, the oblique guide plate 5 is connected on the rotating shaft, and the rotating shaft can be rotatably adjusted. By rotating the rotating shaft, the angle of inclination of the oblique guide plate 5 can be adjusted.

[0029] like Figure 3 As shown, the transition conveying device 3 also includes an inner baffle 38, and a conveying space is formed between the inner baffle 38 and the outer baffle 33, and the conveying surface 32 is located between the inner baffle 38 and the outer baffle 33. The inner baffle 38 can prevent the cardboard from moving inward and falling.

[0030] In order to adjust the left and right position of the outer baffle 33, a first sliding shaft 300 is provided on the conveying frame 30. A first sliding seat 301 is movably and adjustably provided on the first sliding shaft 300. The outer baffle 33 is installed on the first sliding seat 301. When the first sliding seat 301 moves, the outer baffle 33 can be moved closer to or away from the conveying surface 32, thereby meeting the material blocking requirements of cardboards of different sizes.

[0031] In order to adjust the left and right position of the active conveying roller mechanism 4, a second slide shaft is provided on the conveying frame 30, and a second slide seat is movably and adjustable on the second slide shaft. The active conveying roller mechanism 4 is installed on the second slide seat. When the second slide seat moves, the active conveying roller mechanism 4 can be moved closer to or away from the conveying surface 32, thereby meeting the conveying requirements of cardboards of different sizes.

[0032] Finally, it is worth mentioning that the conveying surface 32 can be formed by a conveying belt or a conveying roller set. Both can realize the conveying of cardboard.

Claims

1. A bidirectional cardboard slitting machine, comprising two slitting mechanisms (1, 2), characterized in that: The slitting mechanism comprises a base (10) and a slitting knife (11), a slitting roller (12) and a plurality of guide rollers (13) mounted on the base (10); the slitting roller (12) is connected to a slitting power source for driving the slitting roller (12) to rotate; a paper pressing belt (14) is wound around the plurality of guide rollers (13); the paper pressing belt (14) acts on the slitting roller (12); a feed port and a discharge port are provided between the paper pressing belt (14) and the slitting roller (12); a transition conveying device (3) is used to realize conveying connection between the discharge port of the first slitting mechanism (1) and the feed port of the second slitting mechanism (2); the first slitting mechanism ( 1) has a discharging direction perpendicular to the conveying direction of the transition conveying device (3), and a feeding direction of the second slitting mechanism (2) is the same as the conveying direction of the transition conveying device (3), characterized in that: the transition conveying device (3) comprises a conveying frame (30), a conveying surface (32) and an outer baffle (33), the outer baffle (33) being mounted on the conveying frame (30), the outer baffle (33) being located on a side of the conveying surface (32) away from the first slitting mechanism (1), a spacing being provided between the outer baffle (33) and an edge of the conveying surface (32), and a support plate (34) being provided between the outer baffle (33) and the conveying surface (32).

2. A bidirectional cardboard slitting machine according to claim 1, characterized in that: The support plate (34) is connected to the outer baffle plate (33), and the support plate (34) is located below the conveying surface (32).

3. A bidirectional cardboard slitting machine according to claim 1, characterized in that: A separation roller (35) is mounted on the conveying frame (30), the separation roller (35) is located in front of the conveying surface (32), a separation pressure wheel (36) is provided above the separation roller (35) and is pressed on the separation roller (35), and the linear speed of the separation roller (35) is greater than the linear speed of the conveying surface (32).

4. A bidirectional cardboard slitting machine according to claim 1, characterized in that: The conveying surface (32) and the outer baffle plate (33) are both mounted on a movable seat (31). The movable seat (31) is mounted on a conveying frame (30) and can be adjusted to move forward and backward. The movable seat (31) can move forward and backward to move away from or closer to a feed port of the second slitting mechanism (2).

5. The bidirectional cardboard slitting machine according to claim 1, characterized in that: The conveying frame (30) is mounted on the base (39) in a manner that allows it to be moved leftward and rightward and adjusted. The conveying frame (30) can be moved leftward and rightward to move away from or closer to the discharge port of the first slitting mechanism (1).

6. A bidirectional cardboard slitting machine according to claim 1, characterized in that: An active conveying roller mechanism (4) is provided between the discharge port of the first slitting mechanism (1) and the transition conveying device (3), and the active conveying roller mechanism (4) comprises two upper and lower active conveying rollers.

7. A bidirectional cardboard slitting machine according to claim 6, characterized in that: An inclined guide plate (5) is provided on the side of the active conveying roller mechanism (4) facing the first slitting mechanism (1), and the inclined guide plate (5) can guide the cardboard to between the active conveying roller mechanisms (4).

8. The bidirectional cardboard slitting machine according to claim 7, characterized in that: The inclined guide plate (5) is connected to a rotating shaft, and the rotating shaft can be rotated and adjusted.

9. The bidirectional cardboard slitting machine according to claim 1, characterized in that: The transition conveying device (3) further comprises an inner baffle plate (38), a conveying space is formed between the inner baffle plate (38) and the outer baffle plate (33), and the conveying surface (32) is located between the inner baffle plate (38) and the outer baffle plate (33).

10. The bidirectional cardboard slitting machine according to claim 1, characterized in that: The conveying frame (30) is provided with a first sliding shaft (300), and a first sliding seat (301) is movably and adjustably provided on the first sliding shaft (300). The outer baffle plate (33) is mounted on the first sliding seat (301), and the first sliding seat (301) can be moved so that the outer baffle plate (33) is close to or away from the conveying surface (32).

11. The bidirectional cardboard slitting machine according to claim 6, characterized in that: The conveying frame (30) is provided with a second sliding shaft, on which a second sliding seat is movably and adjustably provided, and the active conveying roller mechanism (4) is mounted on the second sliding seat. The movement of the second sliding seat can make the active conveying roller mechanism (4) approach or move away from the conveying surface (32).

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