Paper feeding mechanism of board cutting machine

Abstract

The utility model relates to a paper feeding mechanism of a board cutting machine, which comprises a lifting paper supporting and feeding table and a paper feeding device, the lifting paper supporting and feeding table is arranged below the paper feeding device, the paper feeding device comprises a front-end paper suction mechanism, a rear-end paper suction mechanism and a rear-end paper pressing mechanism, the front-end paper suction mechanism comprises a front lifting suction nozzle, and the rear-end paper pressing mechanism comprises a rear lifting suction nozzle. The rear-end paper suction mechanism comprises a lifting support, a left suction nozzle and a right suction nozzle, the left suction nozzle and the right suction nozzle are arranged on the lifting support and arranged on the rear side of the front lifting suction nozzle, the rear-end paper pressing mechanism comprises self-weight type lifting paper pressing blocks, and the lifting paper pressing blocks are distributed left and right. The left suction nozzle and the right suction nozzle are located between the lifting paper pressing blocks distributed left and right, and the rear side of the lifting paper supporting and feeding table is further provided with a top-layer paper dividing and blowing nozzle. In the paper feeding mechanism of the board cutting machine, paperboards stacked on the top (top layer) of the paper pile on the lifting paper supporting and feeding table can be lifted and lifted one by one, the situation that multiple paperboards are sucked is avoided, and the problem that multiple paperboards are lifted and conveyed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper feeding mechanism of board opening machine. BACKGROUND

[0002] In paper product processing operation, such as paper box, leather shell and the like, paperboard needs to be used as material to be slotted or cut open and segmented (i.e. board opening processing), and the paperboard is stacked (i.e. paper stack) and placed in a board opening machine for feeding and processing; wherein, when the paperboard is stacked and fed, the paperboard is easily attracted to each other, especially in the case of the whole stack of paperboard being compacted (such as the finished product paper stack purchased from outside, to avoid the problem of paper feeding disorder caused by uneven paperboard), the paperboard is extremely easy to attract each other and not to separate; when the paperboard in the paper stack is attracted to each other and not to separate and is fed into the board opening machine, i.e. multiple paperboards are fed into the board opening machine at the same time, it will affect the subsequent normal board opening processing. In addition, there are slight deviations in the thickness of each paperboard, and each paperboard is uneven, which affects the accuracy of the lifting height position and affects the paper feeding. SUMMARY

[0003] In view of the technical problems in the background art, the utility model aims to provide a paper feeding mechanism of a board opening machine which can smoothly separate the paperboards and avoid multiple paperboards being lifted and conveyed.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the paper feeding mechanism of the board opening machine comprises a lifting paperboard feeding table and a paper feeding device, the lifting paperboard feeding table is arranged below the paper feeding device, the paper feeding device comprises a front end paper suction mechanism, a rear end paper suction mechanism and a rear end paper pressing mechanism, the front end paper suction mechanism comprises a front lifting suction nozzle, the rear end paper suction mechanism comprises a lifting bracket, a left suction nozzle and a right suction nozzle, the left suction nozzle and the right suction nozzle are arranged on the lifting bracket, the left suction nozzle and the right suction nozzle are arranged at the rear side of the front lifting suction nozzle, the rear end paper pressing mechanism comprises a lifting paper pressing block with self weight, the lifting paper pressing block is arranged in a left-right distribution mode, the left suction nozzle and the right suction nozzle are located between the lifting paper pressing blocks arranged in the left-right distribution mode, and the rear side of the lifting paperboard feeding table is further provided with a top layer paper separating air nozzle.

[0005] The above technical scheme can be further optimized or supplemented as follows.

[0006] For example, the lifting paper pressing block is mounted on a limiting guide rod, and the limiting guide rod is vertically arranged; the lifting paper pressing block has a guide hole, and the guide hole is movably sleeved on the limiting guide rod; the lifting paper pressing block is provided with a pressing block descending limiting structure, and the pressing block descending limiting structure is arranged between the lifting paper pressing block and the limiting guide rod.

[0007] For another example, the front lifting suction nozzle is arranged on a paper feeding frame arranged in a front-rear movement mode.

[0008] In addition, the front side of the paper feed frame is further provided with a paper feed roller, and the paper feed roller is provided with a paper feed pressure roller; the paper feed pressure roller is arranged on a pressure roller seat, and the pressure roller seat is arranged on a turnover shaft.

[0009] The left suction nozzle and the right suction nozzle are arranged at the left and right ends of the bent plate respectively, and the middle of the bent plate is high and the left and right ends are low.

[0010] The left suction nozzle and the right suction nozzle are arranged in an inner eight type cooperation mode.

[0011] That is, the air suction ports of the left suction nozzle and the right suction nozzle are arranged downward and inward.

[0012] The air suction ports of the front lifting suction nozzle, the left suction nozzle and the right suction nozzle are arranged downward respectively.

[0013] The left and right distributed lifting paper pressing blocks cooperate with the left suction nozzle and the right suction nozzle on the lifting support to suck and lift the top layer of paper board.

[0014] In addition, the top layer paper separating air blowing nozzle is arranged on the universal bamboo joint pipe; the front lifting suction nozzle, the left suction nozzle and the right suction nozzle adopt organ suction nozzles or suction nozzles with suction discs; the front lifting suction nozzle, the left suction nozzle and the right suction nozzle all adopt air nozzles; the lifting paper pressing block is further provided with a pressing spring

[0015] The paper board on the top (top layer) of the paper stack on the lifting paper supporting and feeding table in the paper feeding mechanism of the plate opening machine can be lifted and lifted one by one, and the problem of multiple paper boards being lifted and conveyed can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] The related details and working principles of the embodiments of the present application will be described below in combination with the drawings.

[0017] Figure 1 It is a rear view structural schematic diagram of the present application.

[0018] Figure 2 It is a top view of the present application. Figure 1

[0019] It is a perspective view of the present application, wherein the lifting paper supporting and feeding table is not shown. Figure 3 Figure 2 It is another perspective view of the present application.

[0020] Figure 4 It is a top view of the present application. Figure 3

[0021] In the drawings:

[0022] 1, lifting paper supporting and feeding table;

[0023] ​​2. Paper feeding device; 20. Front paper suction mechanism; 21. Rear paper suction mechanism; 22. Rear paper pressing mechanism; 23. Paper feeding rack; 24. Paper feeding roller; 25. Paper feeding pressure roller; 26. Pressure roller seat; 27. Turning shaft;

[0024] 200, front lifting nozzle;

[0025] 210, lifting bracket; 211, left suction nozzle; 212, right suction nozzle;

[0026] 220, lifting and lowering paper block; 221, limiting guide rod;

[0027] 3. Top paper separation blowing nozzle; 30. Universal bamboo tube;

[0028] 4. Mounting base; 41. Support rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the implementation of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Referring to the accompanying drawings, the paper feeding mechanism of the plate opening machine in the embodiment of this embodiment includes a lifting paper support and feeding platform 1 and a paper feeding device 2. The lifting paper support and feeding platform 1 is arranged below the paper feeding device 2. The lifting paper support and feeding platform 1 usually includes a paper support rack. The lifting paper support and feeding platform 1 (its paper support rack) is driven by a motor to rise and fall. During the gradual rising process, the top layer of the paper pile (including stacked paperboards) on the paper support rack is fed away one by one by the paper feeding device 2.

[0031] The paper feeding device 2 includes a front-end paper suction mechanism 20 , a rear-end paper suction mechanism 21 , and a rear-end paper pressing mechanism 22 .

[0032] The front-end paper suction mechanism 20 is used to suck the front end of the top sheet of paper on the paper stack on the lifting paper support and feeding platform 1. The front-end paper suction mechanism 20 includes a front lifting nozzle 200 (the number of front lifting nozzles 200 can be set as needed). When the front lifting nozzle 200 descends, it sucks the front end of the paper below. When the front lifting nozzle 200 rises, it lifts the top sheet of paper.

[0033] The rear end paper suction mechanism 21 is used to cooperate with sucking the rear end position of the cardboard on the top layer of the paper pile on the lifting paper support feeding platform 1. The rear end paper suction mechanism 21 includes a lifting bracket 210, a left suction nozzle 211 and a right suction nozzle 212. The left suction nozzle 211 and the right suction nozzle 212 are arranged on the lifting bracket 210. The left suction nozzle 211 and the right suction nozzle 212 are lifted and lowered along with the lifting bracket 210. The lifting bracket 210 can be driven to move up and down by the cylinder 213. The left suction nozzle 211 and the right suction nozzle 212 are arranged on the rear side of the front lifting nozzle 200. When the lifting bracket 210 descends, it drives the left suction nozzle 211 and the right suction nozzle 212 to cooperate with sucking the rear end position of the cardboard below. When it rises, it can cooperate with lifting the top cardboard sucked.

[0034] The rear-end paper pressing mechanism 22 is used to cooperate with and press down the rear end of the top sheet of paper on the paper stack on the lifting paper support and feeding platform 1. The rear-end paper pressing mechanism 22 includes a self-weight lifting and pressing block 220. That is, the lifting and pressing block 220 uses its own weight (i.e., deadweight) to apply pressure. The lifting and pressing block 220 can use its deadweight to lower and press down the rear end of the paper. The structure is relatively simple. When the paper on the lifting paper support and feeding platform 1 rises, the lifting and pressing block 220 can be lifted (i.e., raised) upward to ensure that the lifting and pressing block 220 can apply pressure smoothly without causing damage or interference to the lifting and pressing block 220. The lifting and pressing block 220 can adaptively press down the paper stack (which rises with the lifting paper support and feeding platform 1). Even if the thickness of the paper in the paper stack varies, the paper is slightly uneven, resulting in a deviation in the height position of the top sheet of the paper stack, or the left and right heights of the top sheet of the paper stack are inconsistent, the rear-end paper pressing mechanism 22 can still smoothly apply pressure (press down) the rear end of the paper on the top sheet of the paper stack.

[0035] The left and right lifting pressure paper blocks 220 are arranged on the left and right sides, for example, one lifting pressure paper block 220 is arranged on the left side, and the other lifting pressure paper block 220 is arranged on the right side. The left suction nozzle 211 and the right suction nozzle 212 are arranged between the left and right lifting pressure paper blocks 220. During operation, the paperboard between the left and right lifting pressure paper blocks 220 can be lifted (raised) by the left suction nozzle 211 and the right suction nozzle 212 in cooperation with the lifting action of the lifting bracket 210 under the premise that the lifting pressure paper blocks 220 press the rear end position of the paperboard on the top layer of the paper stack. The paperboard can be lifted in an arched state by the left suction nozzle 211 and the right suction nozzle 212 in cooperation with the lifting pressure paper blocks 220 pressing the paperboard on the left and right sides. That is, the middle region of the rear end position of the paperboard is lifted, the left and right side regions are pressed by the lifting pressure paper blocks 220, the middle region of the rear end of the paperboard is high, and the left and right side regions are low (i.e., in an arched state). The arched state separates the top layer of the paperboard at the rear end of the paper stack from the underlying paperboard. In addition, the rear side of the lifting paper supporting feeding table 1 is also provided with a top layer paper separating air blowing nozzle 3, which can blow air from the rear to the front of the arched position (space) based on the arched state of the paperboard. An air layer is formed between the top layer of the paperboard and the underlying paperboard of the paper stack, which can completely separate the top layer of the paperboard from the underlying paperboard. When the front end paper suction mechanism 20 sucks the paperboard at the front end position of the paperboard on the top layer of the paper stack, it will not appear to suck multiple paperboards. In the paperboard separating machine, the paperboard on the top (top layer) of the paper stack stacked on the lifting paper supporting feeding table 1 can be lifted and lifted one by one, without the problem of multiple paperboards being lifted and transported. Even the original paper stack (compacted) can be directly purchased and used on the machine, without the need for manual re-dispersion and arrangement of the purchased original paper stack. It is more convenient to use.

[0036] The following optimizations or further descriptions can be made based on the above embodiments, respectively.

[0037] Among them, the front lifting suction nozzle 200, the left suction nozzle 211 and the right suction nozzle 212 can adopt an organ pipe suction nozzle or a suction nozzle with a suction cup, which has a buffering effect; the suction nozzle is an air nozzle connected to a negative pressure air source for air suction. Among them, the air suction ports of the front lifting suction nozzle 200, the left suction nozzle 211 and the right suction nozzle 212 are respectively arranged downward, which can smoothly suck the paperboard on the lifting paper supporting feeding table 1 when descending. The lifting bracket 210210 can be arranged on the mounting seat 4 through the air cylinder 213. The top layer paper separating air blowing nozzle 3 can be arranged on the mounting seat 4. The mounting seat 4 can be arranged on the support rod 41 for forward and backward position adjustment to adapt to paperboards of different sizes.

[0038] For example, the lifting and lowering pressure paper block 220 is mounted on a limiting guide rod 221, which is arranged vertically. The limiting guide rod 221 cooperates with the limiting guide rod 221 to limit and guide the lifting and lowering pressure paper block 220. For example, the lifting and lowering pressure paper block 220 has a guide hole, which is movably mounted on the limiting guide rod 221. For example, the lifting and lowering pressure paper block 220 is equipped with a pressure block descent limiting structure to limit the position of the lifting and lowering pressure paper block 220 when it descends; for example, the pressure block descent limiting structure is arranged between the lifting and lowering pressure paper block 220 and the limiting guide rod 221. There are many ways to implement this, such as configuring the guide hole as a stepped hole and providing a limiting step on the limiting guide rod 221. When the guide hole descends and rests on the limiting step, the pressure block is in a lowered position.

[0039] In addition, a front lifting suction nozzle 200 is arranged on a paper feed rack 23 that is movable back and forth. The front lifting suction nozzle 200 can move back and forth with the paper feed rack 23. After the front lifting suction nozzle 200 sucks the cardboard, it can move forward to cooperate with the conveyance of the cardboard, and retract to reset and wait for the next work. A paper feed roller 24 is also provided on the front side of the paper feed rack 23. After the cardboard is moved forward and conveyed, it is further conveyed by the paper feed roller 24. The paper feed roller 24 is equipped with a paper feed pressure wheel 25, which cooperates with the paper feed pressure wheel 25 to press the cardboard for conveyance to prevent the cardboard from deviating. The paper feed pressure wheel 25 is arranged on a pressure wheel seat 26, which is arranged on a turning shaft 27. The pressure wheel seat 26 rotates back and forth with the turning shaft 27 to drive the paper feed pressure wheel 25 to apply and release pressure. When the paper feed pressure wheel 25 rotates toward the paper feed roller 24, it cooperates to press the cardboard for conveyance. When the paper feed pressure wheel 25 rotates away from the paper feed roller 24, it separates and releases pressure. The front lifting nozzle 200 can be driven to lift by the cylinder 201, the cylinder 201 can be installed on the paper feeding rack 23, the front lifting nozzle 200 can be assembled on the mounting plate 202 (an air path can be set inside for connection), and the cylinder 201 is connected between the paper feeding rack 23 and the mounting plate.

[0040] Further optimization is possible. The lifting bracket 210 can be configured as a curved plate (e.g., a folded plate or curved plate), with the left and right suction nozzles 211 and 212 positioned at the left and right ends of the curved plate, respectively. The curved plate is higher in the middle and lower at the left and right ends. For example, the curved plate can be horizontal in the middle, with the left and right ends (of the horizontal section) bent downward by 5 degrees (angle). This allows the cardboard to be smoothly lifted and sucked up in an arched position. The left and right suction nozzles 211 and 212 are arranged in an "inner eight" arrangement to coordinate paper suction; that is, the air inlets of the left and right suction nozzles 211 and 212 face downward and are offset inward. The lifting and pressing blocks 220, positioned on the left and right sides, cooperate with the left and right suction nozzles 211 and 212 on the lifting bracket 210 to suck the top layer of cardboard, arching and lifting it. The front end of the lifting and pressing blocks 220 can be used to press the paper.

[0041] In addition, the top-layer paper separation air nozzle 3 is mounted on a universal bamboo tube 30, making it easy to adjust the position and angle of the air blow. The front lifting nozzle 200, the left suction nozzle 211, and the right suction nozzle 212 utilize accordion nozzles or nozzles with suction cups, which hold the cardboard relatively firmly and provide a certain cushioning capacity. The front lifting nozzle 200, the left suction nozzle 211, and the right suction nozzle 212 all utilize air nozzles, which can utilize a negative pressure air source to suck air and hold the cardboard in place when ventilated. The lifting and pressing paper block 220 may also be equipped with a pressure spring (not shown) that acts in conjunction with the pressure spring to apply pressure to the lifting and pressing paper block 220, allowing it to descend more smoothly. For example, the pressure spring may be mounted on a limiting guide rod 221.

Claims

1. The paper feeding mechanism of the plate opening machine includes a lifting paper feeding platform (1) and a paper feeding device (2). The lifting paper feeding platform (1) is arranged below the paper feeding device (2). The paper feeding device (2) includes a front-end paper suction mechanism (20), a rear-end paper suction mechanism (21) and a rear-end paper pressing mechanism (22). The front paper suction mechanism (20) comprises a front lifting suction nozzle (200), The rear end paper suction mechanism (21) comprises a lifting bracket (210), a left suction nozzle (211) and a right suction nozzle (212). The left suction nozzle (211) and the right suction nozzle (212) are arranged on the lifting bracket (210), and the left suction nozzle (211) and the right suction nozzle (212) are arranged on the rear side of the front lifting suction nozzle (200). The rear end paper pressing mechanism (22) includes a self-weight type lifting and lowering paper pressing block (220), the lifting and lowering paper pressing blocks (220) are arranged on the left and right sides, and the left suction nozzle (211) and the right suction nozzle (212) are located between the lifting and lowering paper pressing blocks (220) arranged on the left and right sides. The rear side of the lifting paper feeding platform (1) is also provided with a top paper separation air blowing nozzle (3).

2. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The lifting and pressing paper block (220) is installed on the limiting guide rod (221), and the limiting guide rod (221) is vertically arranged; the lifting and pressing paper block (220) has a guide hole, and the guide hole is movably sleeved on the limiting guide rod (221); The lifting and lowering paper pressing block (220) is equipped with a pressing block descending limiting structure, and the pressing block descending limiting structure is arranged between the lifting and lowering paper pressing block (220) and the limiting guide rod (221).

3. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The front lifting nozzle (200) is arranged on a paper feeding rack (23) that is arranged to move forward and backward.

4. The paper feeding mechanism of the plate opening machine according to claim 3, characterized in that: A paper feed roller (24) is also provided on the front side of the paper feed rack (23), and the paper feed roller (24) is equipped with a paper feed pressing wheel (25); the paper feed pressing wheel (25) is arranged on a pressing wheel seat (26), and the pressing wheel seat (26) is arranged on a turning shaft (27).

5. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The lifting bracket (210) adopts a bent plate, and the left suction nozzle (211) and the right suction nozzle (212) are respectively arranged at the left and right ends of the bent plate, with the middle of the bent plate being higher and the left and right ends being lower.

6. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The left suction nozzle (211) and the right suction nozzle (212) are arranged in an inner eight-shaped manner to cooperate with the paper suction arrangement.

7. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The air inlet of the left suction nozzle (211) and the air inlet of the right suction nozzle (212) are downwardly directed and arranged inwardly.

8. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The air inlets of the front lifting suction nozzle (200), the left suction nozzle (211) and the right suction nozzle (212) are respectively arranged downward.

9. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The lifting and pressing paper blocks (220) arranged on the left and right sides cooperate with the left suction nozzle (211) and the right suction nozzle (212) on the lifting bracket (210) to suck the top paperboard and lift it up.

10. The paper feeding mechanism of the plate opening machine according to claim 1, characterized in that: The top paper separation air blowing nozzle (3) is arranged on the universal bamboo tube (30); the front lifting suction nozzle (200), the left suction nozzle (211) and the right suction nozzle (212) adopt accordion suction nozzles or suction nozzles with suction cups; the front lifting suction nozzle (200), the left suction nozzle (211) and the right suction nozzle (212) all adopt air nozzles; the lifting paper pressing block (220) is also equipped with a pressure spring.

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