KR20070114929A - An automatic feeding system for printing machine - Google Patents

Abstract

An automatic feeding system for a printing machine is provided to prevent vibration and noise of the system by conveying a wrapping material such as a cardboard using a feeding roll. An automatic feeding system for a printing machine comprises a feeding roll device, a stop-plate(3), a plate driving device making contact with the stop-plate and a feeding device-driving member for transmitting power to the feeding roll device and the plate driving device. The feeding roll device is provided with feeding roll members(21) including a plurality of feeding rolls(212) that are disposed on a rotating shaft installed at the lower part of a frame. The stop-plate is provided with a plate member that is disposed on the upper part of the feeding roll device and has a feeding roll insertion hole(31) corresponding to the feeding roll.

Description

       Automatic feeder of printing machine {AN AUTOMATIC FEEDING SYSTEM FOR PRINTING MACHINE}

       1 is a plan view showing the overall configuration of an automatic sheet feeder of a printing press according to the present invention;

       2 is a perspective view showing an automatic sheet feeding apparatus of a printing press according to the present invention;

       3a and 3b is a view showing the operating state of the main portion in the automatic sheet feeding apparatus of the present invention,

       4A to 4D are views for explaining an operating state of the automatic paper feeder of the printing press according to the present invention.

       * Description of the symbols for the main parts of the drawings *

       10: frame, 11: stopper,

       2: feed roll device, 21: feed roll member,

       212: paper feed roll, 3: stop plate,

       4: plate driving means, 41: lifting member,

       42: the first driving rod, 43: the second driving rod,

       44: first plate driving unit, 441: first driving arm,

       442: second driving arm, 443, 453: moving member,

       45: second plate driving unit, 451: third driving arm,

       452: fourth driving arm, 46: main driving arm,

       47: cam, 48: return member,

       5: feeder drive means, 51: main drive part,

       52: second electric drive, 53: second electric drive,

       54: gear box.

       The present invention relates to an automatic paper feeder of a printing press, and more particularly, in the process of supplying a packaging material in a printing process, the stacked packaging materials are easily separated from each other and accurately fed to prevent feeding failure and improve the feeding efficiency of the printing press. It relates to an automatic paper feeder.

       In general, the packaging material used in the packaging box is used for packaging materials of various materials such as plywood, synthetic resin, corrugated cardboard, etc., depending on the characteristics and shape of the product accommodated in the packaging box, but is mainly used for cheaper and lighter cardboard than wood.

       And the process of making a box using the corrugated paper is to determine the size of the box according to the size or shape of the contents to be packaged and to perform the desired printing process on the surface of the cardboard, and then put a line to cut or fold according to the development view It is glued with glue or adhesive tape.

       On the other hand, in the process of manufacturing the box by the corrugated cardboard as described above, the process of supplying the corrugated cardboard is essentially performed, but this process was performed by conventional manual work, but the mechanized paper feed due to the increase in production cost and the decrease in productivity due to the increase in labor costs The device is applied and used.

       As the paper feeder of the corrugated cardboard, a so-called kick car paper feeder configured to feed the corrugated paper by the forward and backward operation of the conveying member is widely used, such a paper feeder is a conveying member for moving the cardboard in the same direction as the cardboard Since it operates in the form of pushing the external force to the cardboard while moving to the vibration and noise was severe and there was a problem that the productivity of the cardboard is limited because the number of cardboard that can be fed for a predetermined time is limited.

       In the conventional paper feeder as described above, the cardboard stacking up and down is stuck to each other in the process of pushing the laminated corrugated cardboard, so that the accurate feeding operation cannot be performed. There was a problem that the failure rate is increased because it is impossible to accurately print in the post-process such as the printing process.

       SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a laminated packaging material that is easily separated from each other and accurately fed, thereby preventing feeding failures and improving feeding efficiency, thereby reducing defect rates and improving productivity. It is to provide an automatic paper feeder.

       The automatic feeding device of the printing press for achieving the object is a paper feeding device configured to discharge the laminated cardboard through the lower discharge hole of the stopper installed on the discharge side of the frame by the rotational friction force of the roll, the lower side of the frame A paper feed roll device configured to parallelly arrange a plurality of paper feed roll members in which a plurality of paper feed rolls are coupled at regular intervals on a horizontal axis of rolls to convey paperboard positioned on an outer circumferential surface of the paper feed roll;

       A plurality of paper feed roll insertion holes are drilled on the plate-shaped member which is installed at the upper portion of the paper feed roll so as to be able to move up and down so that the upper portion of the paper feed roll is exposed during the lowering operation of the lowermost cardboard by the paper feed roll. A stop plate which is configured to be transported and is raised at the completion of the transfer operation by the paper feed roll so as to block the lower cardboard from being spaced apart from the lower cardboard and to be transported;

       A plate driving device connected to and operated to raise and lower the stop plate;

       Characterized in that it comprises a paper feeder driving means configured to transmit power to the paper feed roll device and the plate driving device.

       Preferably, the plate driving device and a plurality of lifting members which are installed at regular intervals so as to stand up and down in front and rear of the stop plate; A first driving rod which is rolled up so as to be connected to each other at a lower end of one side elevating member of the stop plate; A second driving rod which is rolled so as to be connected to each other at a lower end of the other elevating member of the stop plate; A first driving arm projecting a first hinge portion to be connected to one side end of the first driving rod, a second hinge portion having a predetermined angle with the first hinge portion, and coupled to a support shaft; A second driving arm having a first hinge portion protruding so as to be connected to one side end of the opposite second driving rod, and a second hinge portion having a predetermined angle with the first hinge portion protruding from the first and second driving arms; A first plate driving part having a moving member installed to connect the second hinge parts to each other; A third hinge protruding from the first hinge part which is connected to an end of the first driving rod positioned at the other side of the stop plate opposite to the first plate driving part and protruding from the second hinge part having a predetermined angle with the first hinge part; A fourth driving arm protruding from a driving arm and a first hinge portion connected to an end of the second driving rod facing the third driving arm, and protruding from a second hinge portion having a predetermined angle with the first hinge portion; A second plate driving part having a moving member installed to connect the second hinge parts of the third and fourth driving arms to each other; A main drive arm coupled to an end portion of the first drive arm to pivot forward and backward through the arm drive shaft coupled to the first drive arm in a predetermined angular range; A cam having an eccentric portion formed to operate the main driving arm to the outside; And a return member for applying an external force to return the main driving arm rotated by the cam.

       The paper feeding device driving means includes a driving motor installed on a frame, a main driving unit in which power generated from the driving motor is transmitted to the main driving shaft via a pulley and a belt, and the main motor gear is coupled to the main driving shaft. ; A first auxiliary motor gear meshed with the main drive gear of the main drive unit, a power transmission shaft connected to the rotational axis of the first auxiliary motor gear and installed in parallel with the feed roll device, and at the other end of the power transmission shaft; A first transmission unit having a first driven gear coupled thereto and a second driven gear meshed with the first driven gear; A plurality of output shafts are provided to be connected to the rotating shaft of the second driven gear of the first transmission unit and are output at the same rotational direction and rotational speed by a plurality of gears engaged with each other and are connected to the feed roll members. A gearbox; The second driving unit may be formed to be engaged with the other side of the main driving gear of the main driving unit and provided with a second auxiliary driving gear to drive the plate driving device.

       In addition, a cam constituting the main drive arm may be coupled to the second auxiliary motor gear of the second electric motor.

       Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

       1 is a plan view showing the overall configuration of the automatic sheet feeding apparatus of the printing press according to the present invention, Figure 2 is a perspective view showing the automatic sheet feeding apparatus of the printing press according to the present invention, Figures 3a and 3b are automatic 4A to 4D are views for explaining an operating state of the automatic paper feeding device of the printer according to the present invention.

       The automatic paper feeding device of the printing press according to the present invention, as shown in Figures 1 and 2, the frame (1) on which the cardboard (a) is laminated, the paper feed roll device (2) for transporting the cardboard, and is lifted from the lower side of the frame It is configured to transmit power to the stop plate (3), the plate driving device (4) which is connected and operated so that the stop plate (3) is raised and lowered, and the paper feed roll device (2) and the plate driving device (4). The paper feeding device drive means 5 is comprised.

       The paper feed roll device 2 includes a plurality of paper feed roll members 21 in which a plurality of paper feed rolls 212 are coupled in parallel at a predetermined interval on a rotating shaft 211 rolled down below the frame 1. It is configured to convey the cardboard (a) located on the outer peripheral surface of the paper feed roll 212, the cardboard is discharged through the discharge hole formed in the lower side of the stopper (11).

       The plate driving device 4, as shown in Figures 1 and 2, a plurality of lifting members 41 which are installed at regular intervals so as to stand up and down on the front and rear of the stop plate 3, and the stop plate The first driving rod 42 which is rolled up so as to be connected to each other at the lower end of the entry-side lifting member 41 formed in (3), and rolled up so as to be connected to each other at the lower end of the discharge-side lifting member 41 of the stop plate (3). The second driving rod 43, the first driving rod 42 and the second driving rod 43, the first plate driving portion 44 is configured at one side end so as to be elevated, and the first plate driving portion ( A second plate driving portion 45 formed on the first and second driving rods 42 and 43 positioned on the other side of the stop plate 3 facing the 44; and the first plate driving portion 44; A main drive arm 46 connected to the cam, a cam 47 formed with an eccentric portion so that the main drive arm 46 is operated outward; A return member (48) for applying an external force to the original position the bound drive arm 46 rotates by 47, are provided.

       The elevating member 41 is configured to be arranged in each of the longitudinal direction of the stop plate (3), but is not limited to this can be configured in various quantities depending on the length of the stop plate or the weight or size of the loaded cardboard.

       The first plate driver 44 protrudes from the first hinge part 4411 so as to be connected to one end of the first driving rod 42 as shown in FIGS. 3A and 3B. ) Of the first driving arm 441 and the second driving bar 43 which are opposed to the first driving arm 441 protruding from each other. A second driving arm 442 protruding from the first hinge part 4421 so as to be connected to one side end, and a second hinge part 4422 having a predetermined angle with the first hinge part 4421, and the first driving part 442 protruding from the first hinge part 4421; And a moving member 443 installed to connect the second hinge portions 4412 and 4422 of the second driving arms 441 and 442 to each other.

       In addition, the second plate driver 45 has the same structure as that of the second plate driver as shown in FIGS. 1 and 2 of the stop plate 3 facing the first plate driver 44. A third driving arm 451 which protrudes a first hinge portion to which the other end of the first driving rod 42 located on the other side is connected, and a second hinge portion having a predetermined angle with the first hinge portion protrudes; A first hinge portion protruded to face the third driving arm 451 and connected to the other end of the second driving rod 43, and a second hinge portion having a predetermined angle with the first hinge portion protrudes. Four driving arms 452 and second hinge parts of the third and fourth driving arms 451 and 452 are provided to be connected to each other.

       The main driving arm 46 is coupled to an end portion of the main driving arm 46 so that the arm driving shaft 461 coupled to the first driving arm 441 of the first plate driving unit 44 rotates in a predetermined angle range. A contact member 462 in the form of a roll contacting on 47 is configured. Further, the main driving arm 46 and the first to fourth driving arms are preferably formed in a structure in which two members are firmly fixed on the shaft by bolts while the two members are in close contact with each other about the shaft.

       The return member 47 is composed of an elastic member installed on a bracket fixed on the frame 1 to apply an elastic force on the main driving arm 46.

       The stop plate 3 has a plurality of paper feed roll insertion holes 31 perforated to correspond to the paper feed rolls on a plate-shaped member which is installed on the upper portion of the paper feed roll device 2 so that the paper feed rolls during the lowering operation thereof. The upper part of 212 is exposed so that the lowermost cardboard a can be transported by the feed roll, while being raised at the completion of the conveying operation by the feeding roll, the lower cardboard is separated from the lower cardboard. This prevents them from being attached or engaged with each other.

       The paper feeding device driving means 5 includes a main drive unit 51, a first electric drive unit 52 and a second electric drive unit 53 driven by receiving power from the main drive unit 51, and the first drive unit 51. A gear box 54 connected to the transmission part 52 to drive the paper feed roll device 2 is provided.

       In addition, the main driving unit 51 includes a driving motor 511 installed on the frame 1, and the power generated from the driving motor 511 is driven by the driving pulley 514, the belt 516, and the electric pulley 515. The main drive gear 513 is provided to the main drive shaft 512 via the main drive shaft 512.

       In addition, the first transmission unit 52 is connected to the first auxiliary motor gear 521 meshing with the main motor gear 513 of the main drive unit 51 and the rotational axis of the first auxiliary motor gear 521. A power transmission shaft 522 which is installed and rotated in parallel with the paper feed roll device 2, a first driven gear 523 coupled to the other end of the power transmission shaft 522, and the first driven gear 523; The second driven gear 524 is meshed with).

       In addition, the gearbox 54 is connected to the rotary shaft of the second driven gear 524 of the first transmission unit 52 in a gearbox case having a predetermined shape and is driven by a plurality of gears engaged with each other. A plurality of output shafts 541 which are output at the same rotation direction and rotation speed are provided to be connected to the rotation shafts 211 of the paper feed roll member 21, and the gears are formed inside the gear box 54. The structure can be implemented by using a conventional gear arrangement structure that can be configured to receive a plurality of output shafts having the same output by receiving power from a single input shaft, so a detailed description thereof will be omitted.

       In addition, the second transmission part 53 is engaged with the other side of the main drive gear 513 of the main drive part 51 and is provided with a second auxiliary motor gear 531 to drive the plate driving device 4. The cam 47 for operating the main drive arm 46 is coupled to the second auxiliary electric gear 531.

       On the other hand, on the discharge side of the automatic paper feeder of the printing machine configured as described above, a printing device 7 is configured as shown in the accompanying drawings, Figures 4a to 4d, such a printing device will be described in more detail, the paper feed roll A first printing cylinder configured to discharge the paperboard vertically arranged to receive and discharge the paperboard fed into the bottom discharge hole of the stopper 11 by the device 2, the first printing cylinder for performing a printing operation on the surface of the paperboard 72, the second print cylinder 73, the third print cylinder 74 are sequentially configured, the anilox roll for transferring the ink on the upper side of the first to third print cylinder (72, 73, 74) Each of the first and third print cylinders 75 is configured to include pressure rollers 76 installed on the lower sides of the first to third print cylinders so as to apply a pressing force to each of the print cylinders so that a printing process can be performed smoothly. 1 to 3 printing silin Between the (72,73,74) there is configured a feed roll (77).

       4A to 4D show an opening formed below the feed roll device 2 to discharge the air sucked by the air suction means (not shown) into the air discharge port 12 as the air discharge port 12. When the laminated cardboard is adsorbed to the paper feed roll 212 side to discharge the foreign matter contained in the cardboard, the paper feeding efficiency is improved and the print quality in the post-process is improved.

       And the general components such as bearings installed to guide and support the rotation of the shaft, gears and the like shown in Figure 1 omit the detailed description, and also in the description or parts of the drawings in the description of the configuration of the present invention Parts not shown or shown in the accompanying drawings, but the description is omitted, those skilled in the art can be known to those skilled in the art and will be omitted since the detailed description of the techniques commonly applied in the apparatus.

       The operation of the present invention as described above is as follows.

       As shown in FIG. 4A, when the paper feed roll device 2 composed of a plurality of paper feed roll members 21 is rotated in the state where the stop plate 3 is moved downward, the lowermost cardboard loaded on the loading target of the frame 1 is rotated. Friction is applied to the bottom of the cardboard is discharged through the lower discharge hole of the stopper (11).

       When the cardboard is engaged with the discharge roll 71 on the printing apparatus 7 side by the above operation, the stop plate 3 is lifted by the plate driving apparatus 4 as shown in FIG. The continuous feeding operation is performed by the frictional force according to the rotation operation of the paper feed roll 212 and the rotation of the discharge roll 71, and at the same time, the stop plate 3, which is raised, The bottom surface is held up so that the bottom surface is spaced apart from the outer circumferential surface of the feed roll, and unnecessary feeding operation is blocked.

       Meanwhile, as shown in FIG. 4C, when the cardboard is completely discharged from the automatic paper feeder, the printing process by the first to third printing cylinders 72, 73, and 74 is performed, and the stacked lower side cardboard is placed in the paper waiting state. At the same time, the rotation operation of the paper feed roll device 2 is stopped.

       As described above, when the rotation operation of the paper feed roll device 2 is stopped, the stop plate 3 is lowered as shown in FIG. 4D, and at the same time, the cardboard a located on the stop plate 3 is lowered and fed. While being in close contact with the roll 212, the paper feed roll device 2 is driven again to perform the paper feeding operation as described above.

       On the other hand, the lifting operation of the stop plate 3 that enables the paper feeding operation as described above is performed by the plate driving device 4, which will be described in detail as shown in Figure 3a The first driving arm 441 of the first plate driving portion 44 via the arm driving shaft 461 when the main driving arm 46 comes into contact with the protruding portion of the cam 47 and rotates outward (clockwise in FIG. 3A). As the rotational force is transmitted to the first driving arm is rotated in the clockwise direction, the first driving rod 42 coupled to the first hinge portion 4411 of the first driving arm 441 is lifted by the hinge action. At the same time, the movable member 443 connected to the second hinge portion 4412 of the first driving arm 441 is horizontally moved toward the second driving arm 442, and the movable member 443 and the second hinge portion The second driving arm 442 connected via 4422 is rotated in a clockwise direction, and the second driving arm is rotated in a clockwise direction. The second driving rod 43 coupled to the first hinge portion 4421 of the arm 442 is lifted by a hinge action, wherein the second plate driving portion 45 is interlocked with the first plate driving portion 44. That is, the third driving arm 451 is connected to the first driving rod 42 and the fourth driving arm 452 is connected to the second driving rod 43 to stop the plate by the above-described hinge action. 3) will be activated.

       As described above, when the first driving rod 42 and the second driving rod 43 are raised, the plurality of lifting members 41 connected to the first driving rod and the second driving rod at regular intervals are simultaneously raised. The stop plate 3 connected to the upper end of the member 41 is lifted up, and through this process, the stop plate 3 positioned in the form shown in FIG. 4A is shown in FIG. 4C through the form shown in FIG. 4B. It will work in the form shown.

       On the contrary, when the lowering operation of the stop plate 3 is described, as shown in FIG. 3B, when the cam 47 is rotated and the main drive arm 46 is displaced from the eccentric protrusion of the cam 47, the main port that has been opened outwards. As the arm 46 is returned to the inner side (counterclockwise in the figure) by the elastic force of the return member 48, a reverse rotational force is transmitted to the arm driving shaft 461, and the first plate driving portion to which the arm driving shaft 461 is connected. The first driving arm 441 of (44) is rotated in the opposite direction so that the first driving rod 42 coupled to the first hinge portion 4411 of the first driving arm is lowered by a hinge action. At the same time, as the movable member 443 connected to the second hinge portion 4412 of the first driving arm 441 is pulled toward the first driving arm side, the movable member 443 and the second hinge portion 4422. The second driving arm 442 connected via the second rotating arm rotates counterclockwise. First the second driving rod 43 coupled to a hinge portion (4421) of 442 is to be lowered by a hinge action.

       As described above, when the first driving rod 42 and the second driving rod 43 are lowered, the plurality of lifting members 41 connected to the first driving rod and the second driving rod at regular intervals are simultaneously lowered. The stop plate 3 connected to the upper end of the member 41 is lowered, and the stop plate 3 positioned in the form shown in FIG. 4C is operated through the process shown in FIG. 4D.

        The feed roll device 2 is rotated by the first transmission part 52 which is operated by receiving power from the main drive part 51 of the paper feeder drive means 5, that is, the main motor gear of the main drive part 51. The power transmitted from the first auxiliary electric gear 521 meshed with the 513 to the gearbox 54 via the power transmission shaft 522, the first driven gear 523, and the second driven gear 524 is It is possible to feed the cardboard while rotating the rotating shaft 211 of the paper feed roll member 21 is connected through the output shaft 541 having the same rotation direction and rotation speed.

       On the other hand, the cam 47 for driving the plate driving device 4 is coupled to the second auxiliary drive gear 531 meshed with the other side of the main drive gear 513 of the main drive unit 51, the main drive arm ( 46).

       In addition, the technical configuration of the present invention is not limited to the above, but may be variously modified and applied within the technical scope of the present invention.

       According to the automatic feeding device of the printing machine according to the present invention as described above, since the cardboard is transported by the feed roll, the vibration and noise is reduced, the feeding operation is stable and the speed is high, the productivity is improved.

       In the printing process, since the lower cardboard is fixed by the stop plate, the upper and lower cardboards are stuck together so that the paper feeding is prevented from being discharged at the same time and accurate feeding is possible. It is a useful invention that the print quality of the is improved.

Claims (4)

       In the paper feeder configured to discharge the laminated cardboard through the lower discharge hole of the stopper installed on the discharge side of the frame by the rotational friction force of the roll,        A paper feed roll device configured to parallelly arrange a plurality of paper feed roll members coupled to a plurality of paper feed rolls at a predetermined interval on a rotation axis rolled down to the lower side of the frame to convey cardboard placed on an outer circumferential surface of the paper feed roll;        A plurality of paper feed roll insertion holes are drilled on the plate-shaped member which is installed at the upper portion of the paper feed roll so as to be able to move up and down so that the upper portion of the paper feed roll is exposed during the lowering operation of the lowermost cardboard by the paper feed roll. A stop plate which is configured to be transported and is raised at the completion of the transfer operation by the paper feed roll so as to block the lower cardboard from being spaced apart from the lower cardboard and to be transported;         A plate driving device connected to and operated to raise and lower the stop plate;        And a paper feeding device driving means configured to transmit power to the paper feeding roll device and the plate driving device.        The method of claim 1,        The plate driving device includes a plurality of lifting members which are installed at regular intervals so as to stand up and down on the front and rear of the stop plate;        A first driving rod which is rolled up so as to be connected to each other at a lower end of one side elevating member of the stop plate;        A second driving rod which is rolled so as to be connected to each other at a lower end of the other elevating member of the stop plate;        A first driving arm projecting a first hinge portion to be connected to one side end of the first driving rod, a second hinge portion having a predetermined angle with the first hinge portion, and coupled to a support shaft; A second driving arm having a first hinge portion protruding so as to be connected to one side end of the opposite second driving rod, and a second hinge portion having a predetermined angle with the first hinge portion protruding from the first and second driving arms; A first plate driving part having a moving member installed to connect the second hinge parts to each other;        A third hinge protruding from the first hinge part which is connected to an end of the first driving rod positioned at the other side of the stop plate opposite to the first plate driving part and protruding from the second hinge part having a predetermined angle with the first hinge part; A fourth driving arm protruding from a driving arm and a first hinge portion connected to an end of the second driving rod facing the third driving arm, and protruding from a second hinge portion having a predetermined angle with the first hinge portion; A second plate driving part having a moving member installed to connect the second hinge parts of the third and fourth driving arms to each other;        A main drive arm coupled to an end portion of the first drive arm to pivot forward and backward through the arm drive shaft coupled to the first drive arm in a predetermined angular range;         A cam having an eccentric portion formed to operate the main driving arm to the outside;        And a return member for applying an external force to return the main driving arm rotated by the cam.        The method according to claim 1 or 2,        The paper feeding device driving means includes: a driving motor installed on the frame, and a main driving unit in which power generated from the driving motor is transmitted to the main driving shaft via a pulley and a belt, and the main motor gear is coupled to the main driving shaft;        A first auxiliary motor gear meshed with the main drive gear of the main drive unit, a power transmission shaft connected to the rotational axis of the first auxiliary motor gear and installed in parallel with the feed roll device, and at the other end of the power transmission shaft; A first transmission unit having a first driven gear coupled thereto and a second driven gear meshed with the first driven gear;        A plurality of output shafts are provided to be connected to the rotating shaft of the second driven gear of the first transmission unit and are output at the same rotational direction and rotational speed by a plurality of gears engaged with each other and are connected to the feed roll members. A gearbox;        And a second transmission part meshed with the other side of the main driving gear of the main driving part and provided with a second auxiliary motor gear to drive the plate driving device.        The method of claim 3, wherein       And a cam for constituting the hanging drive arm on the second auxiliary motor gear of the second electric motor.

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