Negative pressure type paperboard conveying device

Abstract

The utility model relates to the technical field of paperboard production and processing, in particular to a negative pressure type paperboard conveying device which comprises a conveying table and a pressure adjusting device. Vertical frames are arranged on the two sides of the conveying table, a lower paper feeding roller is rotationally connected to the conveying table, and an upper paper feeding roller with a connecting shaft is arranged above the lower paper feeding roller. The pressure regulating device comprises a rotating rod which vertically rotates in the vertical frame and is provided with a threaded part, a threaded block arranged on the mounting seat, a driving assembly arranged on the vertical frame, and a stabilizing assembly arranged at the top of the rotating rod; the stabilizing assembly comprises a reinforcing disc attached to the vertical frame and provided with three arc-shaped holes distributed in an annular array mode, an inserting block arranged on the reinforcing disc and three fixing bolts penetrating through the three arc-shaped holes respectively. The height position of the paper feeding roller can be adjusted, so that paperboards with different thicknesses can be conveyed, and the stability of the paper feeding roller during conveying can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to paperboard production processing technical field especially, and it is a kind of negative pressure type paperboard conveying device. BACKGROUND

[0002] Paperboard is a common material, is bonded by multiple layers of paper, and is relatively strong in structure. Paperboard, with its low cost, strong plasticity and environmental characteristics, has become an indispensable material in daily life, industrial production and creative fields.

[0003] Chinese patent with publication number CN204823353U discloses a cam type paperboard fixing device of front edge paper feeder, comprising a carton printing machine and a paper feeding platform arranged at the front end of the carton printing machine. A rectangular paperboard fixing device is arranged at the middle position of the paper feeding platform. The paperboard fixing device is composed of a negative pressure cavity and a fan mechanism connected to the negative pressure cavity. An openable upper cover plate is arranged at the upper end of the negative pressure cavity. A plurality of evenly arranged rectangular air ports are formed on the upper cover plate. A paper feeding cam is arranged in the air port. The paper feeding speed of the device can reach more than 80 sheets per minute. The paperboard is stable during the conveying process and will not move sideways or slip. The paperboard is well protected and will not deform due to excessive local pressure.

[0004] However, the above technical solution has the following disadvantages: when the paperboard is conveyed by the paper feeding roller, the height of the paper feeding roller is fixed. When conveying paperboards of different thicknesses, the extrusion and friction force of the paper feeding roller on the paperboard cannot be adjusted, which leads to unstable conveying of paperboards of different thicknesses, thereby limiting the application range of the device. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art and provides a negative pressure type paperboard conveying device. The height position of the paper feeding roller can be adjusted, different thicknesses of paperboard can be conveyed, and the stability of the paper feeding roller during conveying can be ensured.

[0006] The utility model discloses a technical scheme, a kind of negative pressure paperboard conveying device, including conveying table and pressure regulating device;The both sides of conveying table are provided with stand, and conveying table is rotatably connected with lower paper feed roller, and the upper side of lower paper feed roller is provided with the upper paper feed roller of connecting shaft, and the stand is slidably connected with mounting seat, and connecting shaft is rotatably connected on mounting seat;Pressure regulating device includes the rotating rod of being vertically rotated in the inside of stand and having screw portion, the threaded block being set on mounting seat, the driving assembly being set on stand, and the firm component being set on the top of rotating rod;Threaded block is threadedly connected on screw portion, and firm component includes the reinforcing disc that is attached on stand and has three annular array distribution arc-shaped holes, the insert block being set on reinforcing disc, and three fixed bolts respectively penetrating three arc-shaped holes;Rotating rod is provided with multiple arc-shaped array distribution positioning slots, and the penetrating end of fixed bolt is threadedly connected in the inside of positioning slot, and rotating rod is provided with the rectangular slot for insert block embedding.

[0007] Preferably, a first motor is provided on the mounting seat, and the first motor is drivingly connected with the connecting shaft.

[0008] Preferably, a sliding block is provided on the mounting seat, and a vertically distributed guide rod is provided in the interior of the stand, and the sliding block is slidably connected with the guide rod.

[0009] Preferably, a gasket is sleeved on the fixed bolt, and the gasket is extruded between the reinforcing disc and the fixed bolt.

[0010] Preferably, the driving assembly includes a second motor provided on one side of the stand, a connecting rod rotatably connected with the stand and provided with a worm on both ends, and a worm wheel coaxially provided on the rotating rod; the second motor is drivingly connected with the connecting rod, and the worm is meshingly connected with the worm wheel.

[0011] Preferably, two limiting cylinders distributed above and below are coaxially provided on the rotating rod, and the limiting cylinders are rotatably arranged in the interior of the stand.

[0012] Preferably, five rotating shafts are horizontally rotatably connected with the conveying table, two rotating shafts are located on the front side of the lower paper feed roller, and three rotating shafts are located on the rear side of the lower paper feed roller.

[0013] Preferably, a negative pressure machine base is provided at the bottom of the conveying table, a plurality of air inlets are provided on the conveying table, and the top section of the paper feed wheel is located at the air inlet.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model discloses a height of upper paper feeding roller can be adjusted according to the thickness of paperboard conveying through adjusting device, and then the extrusion and push effect of lower paper feeding roller and upper paper feeding roller when conveying paperboard is adjusted, avoid the situation that paperboard is not recoverable deformation or paperboard appears wrinkle because of too big extrusion force, and the axial rotation of rotating rod after adjusting operation is limited through the stable component of cooperation and setting, avoid the vibration of device when conveying paperboard and cause the axial deflection of rotating rod, the stability when conveying paperboard is improved greatly, and has good practicality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic diagram of the utility model;

[0017] Figure 2 It is sectional view schematic diagram of the utility model's stand;

[0018] Figure 3 It is split schematic diagram of the utility model's stable component;

[0019] Figure 4 It is Figure 3 Structure enlarged schematic diagram of A place in middle;

[0020] Figure 5 It is side view of the utility model.

[0021] Sign significance: 1, stand;2, conveying table;3, lower paper feeding roller;4, upper paper feeding roller;5, connecting shaft;6, first motor;7, mounting seat;8, threaded block;9, rotating rod;10, threaded portion;11, sliding block;12, guide rod;13, second motor;14, connecting rod;15, worm;16, worm wheel;17, limit cylinder;18, reinforcing disc;19, insert block;20, rectangular groove;21, arc-shaped hole;22, fixed bolt;23, positioning groove;24, gasket;25, negative pressure machine base;26, rotating shaft;27, paper feeding wheel;28, tuyere. DETAILED DESCRIPTION

[0022] Embodiment one

[0023] As Figures 1-4 Shown, a kind of paperboard conveying device of negative pressure type is proposed in the embodiment, including conveying table 2 and pressure regulating device;Conveying table 2 two sides are provided with stand 1, conveying table 2 is rotatably connected with lower paper feeding roller 3, the inside of conveying table 2 is provided with driving motor (not shown) of driving lower paper feeding roller 3 rotation, lower paper feeding roller 3 is provided with upper paper feeding roller 4 with connecting shaft 5 above, stand 1 is slidably connected with mounting seat 7, connecting shaft 5 is rotatably connected on mounting seat 7, first motor 6 is provided on mounting seat 7, first motor 6 and connecting shaft 5 are driven connection, by driving lower paper feeding roller 3 and upper paper feeding roller 4 relatively rotate, to realize the effect of conveying to paperboard.

[0024] The pressure regulating device comprises a rotating rod 9 vertically rotating in the interior of the stand 1 and having a threaded part 10, a threaded block 8 arranged on the mounting base 7, a driving assembly arranged on the stand 1, and a stabilizing assembly arranged on the top of the rotating rod 9; the threaded block 8 is threadedly connected to the threaded part 10, the mounting base 7 is provided with a sliding block 11, and the interior of the stand 1 is provided with vertically distributed guide rods 12, and the sliding block 11 is slidingly connected to the guide rods 12.

[0025] The driving assembly comprises a second motor 13 arranged on one side of the stand 1, a connecting rod 14 rotationally connected to the stand 1 and provided with a worm 15 at both ends, and a worm wheel 16 coaxially arranged on the rotating rod 9; the second motor 13 is drivingly connected to the connecting rod 14, the worm 15 is meshingly connected to the worm wheel 16, and the rotating rod 9 is coaxially provided with two vertically distributed limiting cylinders 17, and the limiting cylinders 17 are rotationally arranged in the interior of the stand 1.

[0026] When the height of the upper paper feeding roller 4 is adjusted according to the thickness requirement of the conveyed paperboard, the second motor 13 is started to drive the connecting rod 14 to rotate, the connecting rod 14 drives the two worms 15 in the interior of the stand 1 to rotate, the worms 15 are meshingly connected to the worm wheel 16 for transmission, the worm wheel 16 drives the rotating rod 9 to rotate, and under the guidance of the sliding block 11 and the guide rod 12, the threaded part 10 of the rotating rod 9 is threadedly screwed with the threaded block 8 on the mounting base 7, so that the threaded block 8 on the two stands 1 drives the mounting base 7 thereon to vertically move, until the mounting base 7 drives the connecting shaft 5 and the upper paper feeding roller 4 to move to a height position suitable for conveying the paperboard, thereby realizing the squeezing and pushing effect of the lower paper feeding roller 3 and the upper paper feeding roller 4 when conveying the paperboard, avoiding the situation that the squeezing force is too large to cause unrecoverable deformation of the paperboard or the squeezing force is too small to cause the paperboard to wrinkle, and improving the practicability of the device.

[0027] As shown in Figures 2-4 The stabilizing assembly comprises a reinforcing disc 18 abutting on the stand 1 and having three arc-shaped holes 21 arranged in an annular array, an insertion block 19 arranged on the reinforcing disc 18, and three fixing bolts 22 respectively penetrating through the three arc-shaped holes 21; the rotating rod 9 is provided with a plurality of arc-shaped arrayed positioning grooves 23, the penetrating ends of the fixing bolts 22 are threadedly connected in the interior of the positioning grooves 23, the rotating rod 9 is provided with a rectangular groove 20 for embedding the insertion block 19, the fixing bolts 22 are sleeved with gaskets 24, and the gaskets 24 are press-fitted between the reinforcing disc 18 and the fixing bolts 22.

[0028] When the height adjustment of the mounting seat 7 is finished, the insertion block 19 of the reinforcing disc 18 is aligned with the rectangular slot 20 at the top of the rotating shaft 9 and is fully inserted, then the gasket 24 is sleeved on the stud of the three fixing bolts 22 and the stud is penetrated through the arc-shaped hole 21 of the reinforcing disc 18, until the fixing bolt 22 is screwed into the positioning slot 23 on the stand 1, until the head of the fixing bolt 22 tightly presses the reinforcing disc 18 on the stand 1, that is, the limiting effect of the axial rotation of the rotating shaft 9 is realized, so as to avoid the axial deflection of the rotating shaft 9 caused by the vibration of the device during the conveying of the paperboard, and then the height deviation of the mounting seat 7 on both sides is caused, which affects the height balance of the upper paper conveying roller 4 at both ends, so as to greatly improve the stability of the upper paper conveying roller 4 and the lower paper conveying roller 3 during the conveying of the paperboard, and has good practicability.

[0029] Embodiment two

[0030] As Figure 5 shown, the negative pressure type paperboard conveying device provided in the embodiment, compared with the first embodiment, in the embodiment, five rotating shafts 26 are horizontally connected on the conveying table 2, two rotating shafts 26 are located on the front side of the lower paper conveying roller 3, and three rotating shafts 26 are located on the rear side of the lower paper conveying roller 3, the bottom of the conveying table 2 is provided with a negative pressure base 25, a plurality of air ports 28 are arranged on the conveying table 2, and the cross section top of the paper conveying wheel 27 is located at the air port 28.

[0031] In the embodiment, the negative pressure cavity is generated in the conveying table 2 by the negative pressure base 25, so that when the paperboard is placed on the conveying table 2, the paperboard is attached to the air port 28, the paperboard is adsorbed on the conveying table 2 by the suction force generated by the negative pressure, and the paperboard is conveyed by the rotating rotating shaft 26 and the friction force between the paper conveying wheel 27 and the paperboard, and the structure design of the front two rotating shafts 26 and the rear three rotating shafts 26 makes the paperboard have more stable effect during high-speed conveying.

[0032] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to this, within the knowledge range of the technical personnel in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. A negative pressure cardboard conveying device, characterized in that, include: The conveyor (2) has a support frame (1) on both sides. A lower paper feed roller (3) is rotatably connected to the conveyor (2). An upper paper feed roller (4) with a connecting shaft (5) is provided above the lower paper feed roller (3). A mounting base (7) is slidably connected to the support frame (1). The connecting shaft (5) is rotatably connected to the mounting base (7). The pressure regulating device includes a rotating rod (9) that rotates vertically inside the frame (1) and has a threaded portion (10), a threaded block (8) set on the mounting base (7), a drive assembly set on the frame (1), and a stabilizing assembly set on the top of the rotating rod (9); the threaded block (8) is threadedly connected to the threaded portion (10), and the stabilizing assembly includes a reinforcing plate (18) that fits against the frame (1) and has three arc-shaped holes (21) arranged in an annular array, an insert (19) set on the reinforcing plate (18), and three fixing bolts (22) that pass through the three arc-shaped holes (21) respectively; the rotating rod (9) is provided with a plurality of positioning grooves (23) arranged in an arc-shaped array, the through end of the fixing bolt (22) is threadedly connected to the inside of the positioning groove (23), and the rotating rod (9) is provided with a rectangular groove (20) for the insert (19) to be inserted.

2. The negative pressure cardboard conveying device according to claim 1, characterized in that, The mounting base (7) is equipped with a first motor (6), which is connected to the connecting shaft (5) for driving.

3. The negative pressure cardboard conveying device according to claim 1, characterized in that, The mounting base (7) is provided with a slider (11), and the inside of the stand (1) is provided with vertically distributed guide rods (12), and the slider (11) is slidably connected to the guide rods (12).

4. The negative pressure cardboard conveying device according to claim 1, characterized in that, A washer (24) is fitted on the fixing bolt (22), and the washer (24) is pressed between the reinforcing plate (18) and the fixing bolt (22).

5. A negative pressure cardboard conveying device according to claim 1, characterized in that, The drive assembly includes a second motor (13) mounted on a side stand (1), a connecting rod (14) rotatably connected to the stand (1) and having worm gears (15) at both ends, and a worm wheel (16) coaxially mounted on a rotating rod (9); the second motor (13) and the connecting rod (14) are driven together, and the worm gears (15) and the worm wheel (16) are meshed together.

6. The negative pressure cardboard conveying device according to claim 1, characterized in that, Two limiting cylinders (17) are coaxially arranged on the rotating rod (9) and are distributed vertically. The limiting cylinders (17) are rotatably arranged inside the upright frame (1).

7. The negative pressure cardboard conveying device according to claim 1, characterized in that, Five rotating shafts (26) are horizontally rotatably connected on the conveyor table (2). Two rotating shafts (26) are located on the front side of the lower paper feed roller (3), and three rotating shafts (26) are located on the rear side of the lower paper feed roller (3).

8. A negative pressure cardboard conveying device according to claim 7, characterized in that, The bottom of the conveyor (2) is provided with a negative pressure machine base (25), and multiple air vents (28) are provided on the conveyor (2). The top of the cross section of the paper feeding wheel (27) is located at the air vent (28).

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