CN110342290A - Suction servo pressure-free paper feeder - Google Patents

Abstract

The invention relates to a suction servo pressure-free paper feeder, which includes: a limit mechanism, which is used to limit the peripheral position of the stacked cardboards, and forms a stacking area for the cardboards to be stacked. The limit mechanism includes a front baffle, a front baffle The lower side of the lower side is provided with a paper outlet for the lowermost layer of cardboard to be sent out in translation; the paper feeding mechanism includes a transmission wheel assembly arranged on the lower side of the stacking area, and the transmission wheel assembly includes at least two rows of transmission wheels arranged side by side. A row of conveying wheels is located on the lower side of the front baffle to convey the cardboard in the paper outlet; each row of conveying wheels is started and stopped separately, and the suction device includes the bellows arranged on the lower side of the conveying wheel assembly, and the upper side of the bellows Ventilation holes are distributed in the walls to suck the lowermost layer of cardboard onto the transfer wheel assembly. The bottom layer of cardboard is sucked tightly to the transmission wheel assembly, so that the delivery wheel assembly is driven to completely send out the paper outlet, and the stacked cardboard is sent out from the bottom layer to the printing area in turn, realizing automatic feeding.

Description

Suction servo pressure-free paper feeder

technical field

The invention relates to the related field of printing equipment, and more specifically, relates to a suction servo pressure-free paper feeder.

Background technique

In the existing scheme, the paper feeder for printing is provided with a stacking area A' and a printing area B', and the stacking area A' is stacked for the paper board 4', and there is a baffle 11' between the stacking area A' and the printing area B', and the baffle The lower side of the board 11' is provided with a paper outlet C', and the driving wheel 21' and the suction fan 3' on the lower side of the stacking area A' suck the bottom cardboard 4' and pass it to the outside of the paper outlet C' to the printing machine. Zone B'.

In order to allow the cardboard 4' to be completely sent out of the paper outlet C', the paper outlet C' is also provided with a driving wheel 21' and a suction fan 3', that is, the driving wheel 21' and the suction fan 3' are arranged on both sides of the baffle plate 11'. Suction fan 3'.

After the driving wheel 21' in the paper outlet C' conveys the cardboard 4' outward, after the cardboard 4' is sucked by the suction fan 3' outside the paper outlet C', the driving wheel 21' outside the paper outlet C' Responsible for completely passing the cardboard 4' out of the paper outlet C', avoiding staying at the paper outlet C' and affecting the delivery of the next cardboard 4'.

In this way, the driving wheel 21' and the suction fan 3' need to be arranged inside and outside the paper outlet C', which increases the cost of accessories and increases the transmission space.

Contents of the invention

The technical problem to be solved by the present invention is to provide a suction servo pressure-free paper feeder.

The technical solution adopted by the present invention to solve the technical problem is: to construct a suction servo pressure-free paper feeder, including:

The limiting mechanism is used to limit the peripheral position of the stacked cardboards to form a stacking area for the cardboards to be stacked. The limiting mechanism includes a front baffle erected on one side of the stacking area. The lower side of the front baffle is provided with a paper outlet for the lowermost layer of the cardboard to be sent out in translation;

The paper feeding mechanism includes a transmission wheel assembly arranged on the lower side of the stacking area. The transmission wheel assembly includes at least two rows of transmission wheels arranged side by side. The conveying wheel is located on the lower side of the front baffle, so as to convey the cardboard in the paper outlet;

a control device for controlling the start and stop of the transfer wheels in each row; and

The air suction device includes an air box arranged on the lower side of the transmission wheel assembly, and ventilation holes are distributed on the upper side wall of the air box to suck the lowermost layer of cardboard onto the transmission wheel assembly. When the conveying wheel assembly is in operation, the cardboard of the lowest layer is conveyed outward through the paper outlet.

Preferably, each row of transmission wheels is mounted on a drive shaft, and the paper feeding mechanism also includes several drive mechanisms that respectively drive the drive shafts to rotate;

The drive mechanism includes a servo motor and a transmission assembly, the transmission assembly includes an engaged input gear and an output gear, the input gear is connected to the output shaft of the servo motor, and the output gear is connected to the drive shaft, so that The servo motor sequentially drives the input gear, output gear, and drive shaft to rotate, and the outer diameter of the output gear is not larger than the transmission wheel so as not to be higher than the transmission wheel.

Preferably, the transmission assembly further includes a gear box that covers the input gear and the output gear, the gear box is detachably installed outside the side wall of the wind box, and the servo motor is installed on the gear box of the outer wall.

Preferably, the output shaft of the servo motor is connected to the rotation shaft of the input gear through a coupling, and the rotation shaft of the output gear is connected to the drive shaft through a coupling.

Preferably, a transmission wheel is arranged above each ventilation hole, and the air suction device further includes a damper control mechanism for controlling the number of openings of the ventilation holes.

Preferably, the damper control mechanism includes several windshields distributed along the length direction of the paper outlet on the inner surface of the upper side wall of the bellows, so that each windshield can control the ventilation at its position. The hole is open or closed.

Preferably, the windshield can be turned upside down, so as to block the ventilation holes at corresponding positions after turning up, and to open the ventilation holes after turning down.

Preferably, the damper control mechanism also includes a handle located outside the bellows and connected to the rotating shaft of the windshield to drive the windshield to rotate, and the handle is provided with a handle for turning the windshield The wind deflector is held in the rotated position by the second locking device.

Preferably, the second locking device includes a positioning head and a reset member, the positioning head can move toward or away from the bellows, and the reset member provides the positioning head with elastic force to approach the bellows ;

The outer wall surface of the bellows is provided with a clamping hole for the positioning head to be clamped in, so as to keep the windshield at a rotational position after opening or closing the ventilation hole.

Preferably, the position-limiting mechanism includes a rear baffle arranged at a distance from the front baffle, and two side baffles arranged at a distance from each other, so as to position the stacked cardboard from the four sides of the circumference;

The lower edge of the front baffle deviates upwards from the support surface of the conveying wheel assembly on the cardboard, so as to leave a gap to form the paper outlet.

The air suction servo pressure-free paper feeder of the present invention has the following beneficial effects: the cardboard can be stacked in the stacking area in advance, and when the transmission wheel assembly is running, the air suction device can suck the stacked bottom layer of cardboard tightly to the conveying area. On the wheel assembly, with the operation of the transmission wheel assembly, the bottom layer of cardboard is driven to move out of the paper outlet, so as to achieve the effect of sending the stacked cardboard from the bottom layer to the printing area for printing. A row of transmission wheels is located on the lower side of the front baffle , it can also ensure that the cardboard that enters the paper outlet is completely delivered out of the paper outlet, preventing the tail end of the cardboard from passing through the transmission wheel assembly and stopping at the paper outlet, which is conducive to completely transferring the cardboard to the paper outlet, realizing automatic feeding and lifting Improve production efficiency, reduce costs and save manpower.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic diagram of the structure in side view direction when cardboards are stacked on the air suction servo pressure-free paper feeder in the embodiment of the present invention;

Fig. 2 is a schematic diagram of the structure in side view direction when the suction servo pressure-free paper feeder in Fig. 1 conveys the cardboard;

Fig. 3 is a schematic structural diagram of the right-view direction of the suction servo pressure-free paper feeder in Fig. 2;

Fig. 4 is a schematic diagram of the transmission structure of the drive mechanism in the top view direction and the transmission wheel assembly of the air suction servo pressure-free paper feeder in Fig. 3;

Fig. 5 is a schematic diagram of connecting one end of the drive shaft with the drive mechanism in Fig. 4;

Fig. 6 is a schematic diagram of the height position of the input gear, the output gear and the driving wheel of the drive mechanism in Fig. 2;

Fig. 7 is in the background technology.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIG. 1 and FIG. 2 , a suction servo pressure-free paper feeder in a preferred embodiment of the present invention includes a limit mechanism 1 , a paper feeding mechanism 2 and a suction device 3 .

1 to 4, the limit mechanism 1 is used to limit the peripheral position of the stacked cardboard 4 to form a stacking area A for stacking the cardboard 4. The limit mechanism 1 includes a vertical position on one side of the stacking area A. The front baffle 11 is provided, and the lower side of the front baffle 11 is provided with a paper outlet B for the lowermost cardboard 4 to be sent out in translation.

The paper feeding mechanism 2 includes a transmission wheel assembly 21 arranged on the lower side of the stacking area A. The transmission wheel assembly 21 includes three rows of transmission wheels 211 arranged side by side, and each row of transmission wheels 211 has several transmission wheels. Among them, a row of transmission wheels 211 on the side is located on the lower side of the front baffle 11, so that the cardboard 4 in the paper outlet B can be completely delivered out of the paper outlet B, so as to prevent the tail end of the cardboard 4 from passing through the delivery wheel assembly 21 and stop at the outlet. The paper outlet B facilitates the complete transfer of the cardboard 4 to the paper outlet B, and there is no need to set an additional transmission wheel outside the paper outlet B, which saves cost and space.

Preferably, the upper side of a row of transmission wheels 211 located on the lower side of the paper outlet B is directly opposite to the paper outlet B, which can ensure that the cardboard 4 is completely sent out of the paper outlet B. Of course, the row of transmission wheels 211 on the side also It can be properly deviated to the outside of the paper outlet B. After the tail of the cardboard 4 enters the paper outlet B, the transmission wheel 211 drives the cardboard 4 to move out of the paper outlet B until it is completely moved out of the paper outlet B.

The three rows of transmission wheels 211 rotate to drive the cardboard 4 to move. In some embodiments, the suction servo pressure-free paper feeder also includes a control device for controlling the start and stop of each row of conveying wheels 211 respectively, and the control program can be set in combination with the size of the cardboard 4 so that the rear side of the cardboard 4 is After a row of transmission wheels 211 has been conveyed, the row of transmission wheels 211 stops rotating, so as to avoid driving the cardboard 4 of the second layer from bottom to top to move.

As shown in FIG. 4 and FIG. 5 , the paper feeding mechanism 2 also includes a plurality of drive mechanisms 22 that respectively drive the drive shafts 212 to rotate. The drive mechanism 22 includes a servo motor 221 and a transmission assembly 222. The transmission assembly 222 includes meshed input gears 2221, The output gear 2222, the input gear 2221 are connected with the output shaft of the servo motor 221, and the output gear 2222 is connected with the drive shaft 212, so that the servo motor 221 drives the input gear 2221, the output gear 2222, and the drive shaft 212 to rotate in turn.

Preferably, the output shaft of the servo motor 221 is connected to the rotation shaft of the input gear 2221 through a coupling, and the rotation shaft of the output gear 2222 is connected to the drive shaft 212 through a coupling.

Each row of transmission wheels 211 has several transmission wheels, which are installed on the same drive shaft 212 and driven by the servo motor 221 to rotate synchronously. The transmission wheels 211 on each row are axially staggered and arranged in a staggered manner so that two adjacent rows of transmission wheels The distance between 211 is smaller, which is beneficial to force transmission.

As shown in FIG. 6 , the outer diameter of the output gear 2222 is not larger than the transmission wheel 211, so as not to be higher than the transmission wheel 211, so as to prevent the drive mechanism 22 from interfering with the cardboard 4 on the transmission wheel 211, so that the transmission wheel assembly 21 can be used for transmission For cardboards 4 of different widths and thicknesses, only the transmission wheel assemblies 21 of different lengths need to be replaced instead of the driving mechanism 22 . In other embodiments, the transmission wheel assembly 21 may also be two or more than three rows of transmission wheels.

Shown in conjunction with Fig. 2 and Fig. 4, air suction device 3 comprises the bellows 31 that is arranged on the lower side of transmission wheel assembly 21, is distributed with ventilation hole 311 on the upper side wall of bellows 31, and bellows 31 communicates with suction fan 32, and suction fan 32 is working, the airflow flows from the outside to the inside of the ventilation hole 311 to generate suction, so as to suck the cardboard 4 on the bottom layer to the transmission wheel assembly 21. Outward teleportation.

The transmission assembly 222 also includes a gear box 2223 covered with the input gear 2221 and the output gear 2222. The gear box 2223 is detachably installed outside the side wall of the bellows 31. The servo motor 221 is installed on the outer wall of the gear box 2223, reducing the The conveying wheel assembly 21 conveys the impact of the cardboard 4 .

The cardboard 4 can be stacked in the stacking area A in advance. When the transmission wheel assembly 21 is running, the air suction device 3 can suck the bottom layer of the stacked cardboard 4 onto the transmission wheel assembly 21. With the operation of the transmission wheel assembly 21 Drive the bottom layer of cardboard 4 to move out of the paper outlet B, so as to achieve the effect of sending the stacked cardboard 4 from the bottom layer to the printing area C for printing, realizing automatic material feeding, improving production efficiency, reducing costs, and saving manpower .

In some embodiments, the limiting mechanism 1 includes a rear baffle 12 spaced apart from the front baffle 11 , and two side baffles 13 spaced apart from each other, so as to position the stacked cardboards 4 from four sides of the circumference. In other embodiments, the limiting mechanism 1 may also include positioning blocks, positioning frames, etc. that can position the cardboard 4 from four sides.

As shown in FIGS. 1 to 3 , further, the lower edge of the front baffle 11 deviates upward from the supporting surface of the cardboard 4 supported by the conveying wheel assembly 21 , so as to leave a gap in the height direction between the lower edge of the front baffle 11 and the supporting surface. The space gap forms the paper outlet B, so that the cardboard 4 is sent out from the paper outlet B under the transmission of the transmission wheel assembly 21 . The width of the paper outlet B in the height direction is not less than the thickness of a single cardboard 4 to ensure that it can be sent out. In addition, the width of the paper outlet B in the height direction is not greater than the thickness of the two cardboards 4, so as to avoid the second paper from bottom to top. Ply cardboard 4 is sent out.

2 to 3, the suction servo pressure-free paper feeder also includes a first guide rail 5 and four sliders 51 that are adjustable in position on the first guide rail 5; On two of the sliders 51 , adjust the distance between the side baffles 13 to adapt to different sizes of cardboard 4 and position the edges of the cardboard 4 . Usually, a support rod is also provided, and an installation groove is arranged on the support rod along the horizontal direction, and the locking member passes through the first guide rail 5 and locks with the installation groove of the support rod.

2 and 3, in this embodiment, the limit mechanism 1 includes two front baffles 11 arranged side by side, and the two front baffles 11 are located between the two side baffles 13. Plate 11 is respectively installed on the other two slide blocks 51, and the height position on the slide block 51 is adjustable, and then the height position of the lower edge of the front baffle 11 is adjusted, so that the height between the lower edge of the front baffle 11 and the support surface The width of the direction is adjustable, and the cardboard 4 adapted to different thicknesses can be sent out of the paper outlet B.

Preferably, the adjustment bolt 512 on the slider 51 can be used to rotate the front baffle 11 to lift up and down, and the front baffle 11 is also provided with a guide groove 111 to limit the elevation of the front baffle 11 in the height direction to ensure that the position will not be displaced. In other embodiments, only one front baffle 11 may be included, and correspondingly, the number of sliders 51 may also be reduced by one.

As shown in Figures 2 to 3, in some embodiments, the suction servo pressure-free paper feeder further includes a second guide rail 7 set at an angle with the first guide rail 5, and is installed on the second guide rail in an adjustable position The third guide rail 8 on the 7, and the sliding seat 9 that is installed on the third guide rail 8 in an adjustable position.

The tailgate 12 is installed on the slide seat 9, and the position of the third guide rail 8 on the second guide rail 7 can be adjusted according to the size of the cardboard 4, and then the distance between the tailgate 12 and the front fence 11 can be adjusted. Further, the third guide rail 8 is parallel to the first guide rail 5, so that the front baffle 11 and the rear baffle 12 are kept parallel. Preferably, if the size of the cardboard 4 is relatively large, idler rollers 71 may be provided between the tailgate 12 and the transmission wheel assembly 21 to support the bottom of the cardboard 4 to reduce the load on the tailgate 12 .

The tailgate 12 includes a sideboard 121 and a support board 122 arranged horizontally and connected to the sideboard 121 . The support board 122 extends to the front board 11 . The side panels 121 position the side surfaces of the stacked cardboards 4 , and the support panels 122 support the bottom surfaces of the stacked cardboards 4 .

Further, the sliding seat 9 is also provided with a lifting mechanism 91 for adjusting the height of the tailgate 12, so that the bottom position of the cardboard 4 supported by the tailgate 12 is raised to facilitate sliding in the direction of the front fence 11.

As shown in Fig. 2 and Fig. 4, the air suction device 3 also includes a damper control mechanism 33 for controlling the number of openings of the ventilation holes 311, which can allow the ventilation holes 311 opposite to the area where the cardboard 4 is located, and other non-opposing ventilation holes 311 is closed, and under the work of the suction fan 32, an adsorption force is generated to suck the cardboard 4 tightly on the transmission wheel assembly 21.

Preferably, a transmission wheel 211 is arranged above each ventilation hole 311 , so that the air flow position is just opposite to the position of the transmission wheel 211 , which facilitates the adsorption of the cardboard 4 onto the transmission wheel 211 .

In some embodiments, the damper control mechanism 33 includes several windshields 331 distributed along the length direction of the paper outlet B on the inner surface of the upper side wall of the bellows 31, so that each windshield 331 controls the ventilation hole 311 at the position. On or off.

Further, the windshield 331 can be turned upside down, so as to block the ventilation hole 311 at the corresponding position after turning up, and to open the ventilation hole 311 after turning down. In other embodiments, the wind deflector 331 can also be slidably installed on the inner wall or the outer wall of the bellows 31 .

Wind deflector 331 is installed in bellows 31 inner side, in order to rotate wind deflector 331 conveniently, damper control mechanism 33 also comprises the handle 332 that is positioned at the outside of bellows 31, and is connected with the rotation shaft of wind deflector 331, and handle 332 is along the rotation axis of rotation. The bellows 31 extends axially, and turning the handle 332 can drive the windshield 331 to rotate.

The handle 332 is provided with a second locking device 333 for keeping the windshield 331 in the rotated position to ensure the accuracy of the rotated position.

Further, the second locking device 333 includes a positioning head 3331 and a reset member 3332 , the positioning head 3331 can move toward or away from the bellows 31 , and the reset member 3332 provides elastic force for the positioning head 3331 to approach the bellows 31 .

The outer wall of the bellows 31 is provided with a clamping hole for the positioning head 3331 to be inserted into. The positioning head 3331 is clamped into the corresponding position of the clamping hole under the action of the reset member 3332 to keep the windshield 331 open or closed. Rotational position behind the vent hole 311.

It can be understood that the above technical features can be used in any combination without limitation.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

Claims (8)

1. A suction servo pressure-free paper feeder, characterized in that it comprises: The limit mechanism (1) is used to limit the peripheral position of the stacked cardboard (4), forming a stacking area (A) for the cardboard (4) to be stacked, and the limit mechanism (1) includes A front baffle (11) erected on one side of the area (A), the lower side of the front baffle (11) is provided with a paper outlet for the lowermost layer of the cardboard (4) to be sent out in translation (B); The paper feeding mechanism (2) includes a transmission wheel assembly (21) arranged on the lower side of the stacking area (A), and the transmission wheel assembly (21) includes at least two rows of transmission wheels (211) arranged side by side, each A row of conveying wheels (211) has several conveying wheels, wherein a row of conveying wheels (211) on the side is positioned at the lower side of the front baffle (11), so that the cardboard in the paper outlet (B) can be adjusted. (4) Transmission; A control device for controlling the start and stop of the transmission wheels (211) in each row; and Air suction device (3), comprises the bellows (31) that is arranged on the lower side of described transmission wheel assembly (21), is distributed with ventilation hole (311) on the upper side wall of described bellows (31), to the bottom layer The cardboard (4) of the bottom layer is sucked tightly to the transmission wheel assembly (21), and the bottom layer of the cardboard (4) is passed through the paper outlet (B) when the transmission wheel assembly (21) is running. Teleport outward. 2. The suction servo pressure-free paper feeding machine according to claim 1, characterized in that, each row of transmission wheels (211) is mounted on a drive shaft (212), and the paper feeding mechanism (2) also including a plurality of drive mechanisms (22) respectively driving the rotation of each of the drive shafts (212); The drive mechanism (22) includes a servo motor (221) and a transmission assembly (222), the transmission assembly (222) includes an engaged input gear (2221), an output gear (2222), and the input gear (2221) and The output shaft of the servo motor (221) is connected, and the output gear (2222) is connected with the drive shaft (212), so that the servo motor (221) drives the input gear (2221), output gear ( 2222), the drive shaft (212) rotates, and the outer diameter of the output gear (2222) is not larger than the transmission wheel (211), so as not to be higher than the transmission wheel (211). 3. The air-suction servo pressure-free paper feeder according to claim 2, characterized in that, the transmission assembly (222) further includes gears that are arranged outside the input gear (2221) and the output gear (2222) A box (2223), the gear box (2223) is detachably installed outside the side wall of the bellows (31), and the servo motor (221) is installed on the outer wall of the gear box (2223). 4. The suction servo pressure-free paper feeder according to claim 3, characterized in that, the output shaft of the servo motor (221) is connected to the rotating shaft of the input gear (2221) through a coupling, so that The rotation shaft of the output gear (2222) is connected with the drive shaft (212) through a coupling. 5. The air suction servo pressure-free paper feeder according to any one of claims 1 to 4, characterized in that a transmission wheel (211) is arranged above each ventilation hole (311), and the suction The wind device (3) also includes a damper control mechanism (33) for controlling the number of openings of the ventilation holes (311); The damper control mechanism (33) includes a number of windshields (331) distributed along the length direction of the paper outlet (B) on the inner surface of the upper side wall of the wind box (31), so that each of the windshields The wind plate (331) controls the opening or closing of the ventilation hole (311) at the position. 6. The air suction servo pressure-free paper feeder according to claim 5, characterized in that, the windshield (331) can be turned upside down so that the ventilation hole (311) at the corresponding position can be adjusted after being turned upside down. cover, and open the ventilation holes (311) after flipping down. 7. The air-suction servo pressure-free paper feeder according to claim 2, characterized in that, the damper control mechanism (33) also includes a valve located outside the bellows (31) and connected to the windshield ( 331) to the handle (332) connected to the rotating shaft to drive the windshield (331) to rotate, and the handle (332) is provided with a second Two locking devices (333); The second locking device (333) includes a positioning head (3331) and a reset member (3332), the positioning head (3331) can move in a direction approaching or away from the bellows (31), and the reset member ( 3332) providing the positioning head (3331) with elastic force approaching the bellows (31); The outer wall of the bellows (31) is provided with a clamping hole for the positioning head (3331) to be inserted to keep the windshield (331) at the position after opening or closing the ventilation hole (311). Rotate position. 8. The air suction servo pressure-free paper feeder according to any one of claims 1 to 4, characterized in that, the limit mechanism (1) includes a rear plate that is spaced apart from the front baffle (11). baffles (12), and two side baffles (13) arranged at relative intervals, so as to position the stacked cardboards (4) from the four sides of the circumference; The lower edge of the front baffle (11) deviates upwards from the support surface of the conveying wheel assembly (21) on the cardboard (4), leaving a gap to form the paper outlet (B).