KR100547711B1 - High Speed Paper Ejectors for Printing Machines - Google Patents

Abstract

The present invention relates to a high-speed paper discharge device of a printing machine, by a two or more paper discharge ejector which is advanced and retracted alternately so that a smooth operation can be carried out in the post-folding process of folding or binding the discharged paper at a higher speed It is an object of the present invention to provide a high speed paper discharge device of a printing apparatus capable of discharging paper.

In order to achieve the object as described above, the present invention is installed in the discharge unit of the printing machine, at least two or more guide holes formed along the conveying direction of the paper support; At least a pair of guide members installed along the guide hole on a bottom surface of the paper support; A paper pusher coupled to the guide member so as to be movable and rotatable, and reciprocating along the guide member; Drive means for reciprocating conveying the paper sheet so that each paper sheet is conveyed in opposite directions along each guide hole; And an elevating means for elevating the paper stack to the upper portion of the paper support so as to protrude through the guide hole when advancing each paper roll in the paper transport direction, and lowering the paper support to the lower portion of the paper support. to provide.

Paper ejection device, paper support, paper feed module, belt member, drive motor, guide member

Description

High speed sheet ejecting system of printing system             

1A and 1B are bottom perspective views showing a high speed paper discharge device of a printing machine according to the present invention;

2A and 2B are top perspective views showing a high speed paper ejecting device of the printing apparatus shown in Fig. 1;

3A and 3C are perspective views showing a coupling relationship between a paper holder and a guide member, which are main parts of the high speed paper discharge device of the printing apparatus shown in Fig. 1;

Fig. 4 is a top perspective view showing the operation of the high speed paper discharge device of the printing machine shown in Fig. 1;

Fig. 5 is an enlarged perspective view showing a part of a paper holder and a paper support which are main parts of the high speed paper discharge device of the printing apparatus shown in Fig. 1;

Fig. 6 is a partially enlarged perspective view showing the periphery of a drive motor which is a main portion of the high speed paper discharge device of the printing apparatus shown in Fig. 1;

Explanation of symbols on the main parts of the drawings

10: paper support 11: stopper

12: inclined guide surface 20: paper holder

21: extension part 30: connecting member

31: belt receiving portion 40: guide member

50: first spring member 51: second spring member

60: support member 70: belt member

80: drive motor 81: gear

90: idle roller

The present invention relates to a high speed paper discharge device of a printing machine, and more particularly, by two or more paper discharge ejectors which are alternately advanced and retracted so as to facilitate a smooth operation in a post process of folding or binding the discharged paper. The present invention relates to a high speed paper discharge device of a printing apparatus capable of discharging paper at a higher speed.

In general, a paper ejector mounted near a delivery unit of a printing machine such as a copier, a printer, a fax machine, or the like, sorts the paper discharged after a copying operation is performed in the copier body, and then processes, that is, dispenses or staples a predetermined number of sheets, It is a device for transferring the paper to the next process so that the post process such as punching can proceed smoothly. Here, the printing apparatus is a term referring to all equipment that performs copying and printing functions such as a copy machine, a printer, a fax machine, and the like.

The conventional paper ejecting device has a structure in which an ejector (ejector) transfers the paper waiting on the paper support for the post-processing such as stapling and punching after the printing process in the previous process. . In more detail, the paper to be conveyed in the state in which the ejector is retracted is positioned in front of the ejector, and the paper is pushed and conveyed as the ejector is advanced. You will be ready to transport the paper.

However, the conventional paper ejection apparatus as described above has a structure for transporting paper by one ejector, so that the paper is not transported while the ejector is retracted to the initial position, so that the number of sheets of paper that can be transported per unit time is small, in particular, In order to avoid interference, since the paper to be transported after the ejector is restored to the initial position can only be placed on the paper support, there is a problem that the paper ejection speed decreases due to a long idle time between the ejection times of each paper.

Accordingly, the present invention has been proposed to solve the above problems, the first ejector is installed by mounting two ejectors for moving the paper to the position of the next process while moving from one side of the paper support to the other side During the transfer, the second ejector is waiting on one side, and the second ejector transfers the next sheet while the first ejector finishes the paper transfer operation and returns to its original position. It is an object of the present invention to provide a high speed paper discharge device of a printing apparatus which can cope with the high speed of the copier by reducing the delay.

In order to achieve the object as described above, the present invention is installed in the discharge unit of the printing machine, at least two or more guide holes formed along the conveying direction of the paper support; At least a pair of guide members installed along the guide hole on a bottom surface of the paper support; A paper pusher coupled to the guide member so as to be movable and rotatable, and reciprocating along the guide member; Drive means for reciprocating conveying the paper sheet so that each paper sheet is conveyed in opposite directions along each guide hole; And an elevating means for elevating the paper stack to the upper portion of the paper support so as to protrude through the guide hole when advancing each paper roll in the paper transport direction, and lowering the paper support to the lower portion of the paper support. to provide.

The elevating means includes a plurality of ascending and descending holes formed in a size through which the paper stick can pass through the front and rear ends of the guide hole; An inclined guide surface which is formed inside the rising hole and rotates the paper pusher retracted along the guide hole so as to rise to the upper portion of the paper support; And a spring for rotating the paper pusher forwarded through the downhole.

The driving means, the both ends are respectively coupled to the other guide member, the end of the connecting member for receiving one end of the paper pusher and move with the paper pusher; A pair of belt members positioned below the paper support and coupled to the paper transport modules to reciprocally transport the paper transport modules; And a driving motor for driving the belt member through an idle roller positioned below the paper support.

The stopper further includes a stopper disposed vertically to the paper support near the front of the boundary portion of the groove that is the transport path of the paper pusher, and restricting the movement of the supporting member which is advanced together with the advancement of the paper pusher. do.

The paper support is inclined with the paper support in the vicinity of the rear portion of the boundary of the groove which is the conveyance path of the paper support, and the paper support that is positioned horizontally with the paper support while sliding the paper pusher on the upper surface of the paper support. It serves to protrude upward of the paper support.

The present invention according to the above configuration can be achieved by speeding up the copying machine by increasing the discharge speed by quickly conveying the paper after the previous process from the copier to the post-process, preferred embodiments of the present invention with reference to the accompanying drawings. An example is explained in full detail.

1A and 1B are bottom perspective views showing a high speed paper discharge device of a printing machine according to the present invention, and FIGS. 2A and 2B are top perspective views showing a high speed paper discharge device of the printing device shown in FIG.

As shown in Figures 1a to 2b, the high speed paper discharge device of the printing apparatus according to the present invention is a paper straw 20 for conveying the paper discharged from the previous process to a later process, The paper support 10 is formed on the lower surface of the paper support 10 and the paper support 10 is formed with a rising hole and a lower hole communicating with the path corresponding to the cross-sectional shape of the guide hole and the paper transfer module is formed in the transfer path Guide members 40a and 40b for guiding the movement of the 20, belt members 70a and 70b positioned below the paper support 10 to convey the paper holder 20, and the belt member ( It is a configuration including a drive motor 80 for driving 70a, 70b.

The paper pusher 20 is rotatably coupled to the guide members 40a and 40b, and both ends thereof are coupled to other guide members 40a and 40b, respectively, and ends thereof are the paper pushers 20a and 20b. It is provided with a connecting member (30a, 30b) for receiving one end of the paper moving along with the paper pusher (20a, 20b), coupled to the guide member (40a, 40b) together with the paper pusher (20a, 20b), A first spring member 50 is provided to continuously apply force to one side of the paper pusher 20a, 20b, and is accommodated in grooves formed at both ends of the connection member 30a, 30b, and the paper pusher 20a, 20b. It supports the lower end with respect to the one-way rotation of the paper holder (20a, 20b) to protrude on the paper support 10, the second between the groove formed on both ends of the connecting member (30a, 30b) The spring member 51 is provided, the support member 60 is provided with a force in one direction.

The paper support 10 is made of a conventional plate shape, there is no restriction on the material. In addition, the paper support 10 is formed with a guide hole of a predetermined shape penetrating from the upper surface to the lower surface, one side of the guide hole is the movement path of the paper pusher 20a, 20b and the paper pusher 20a, 20b During the rotation of the rising and falling holes are formed to prevent the interference with the paper support 10. That is, one end of the paper holder 20a, 20b is fixed to the guide members 40a, 40b provided at the lower part of the paper support 10, and the other end of the paper holder 10 is brought into contact with the paper. It protrudes, the guide hole for securing the conveying path of the paper holder (20a, 20b) is formed on the paper support 10 in accordance with the paper transfer operation of the paper holder (20a, 20b), the paper holder (20a) Of the paper pushers 20a and 20b formed in parallel with the guide members 40a and 40b in the paper support 10 so as to prevent interference with the paper support 10 according to the left and right rotation operations of the 20b. Ascending and descending holes corresponding to the shape of the paper holders 20a and 20b are formed to the left and right of the transfer path and the transfer path.

Preferably, the guide members 40a and 40b are formed of a long cylindrical rod, and the guide members 40a and 40b are connected to the paper pushers 20a and 20b and the paper pushers 20a and 20b. The connecting members 30a and 30b are coupled and moved on the guide members 40a and 40b. In addition, in the present embodiment, the guide members 40a and 40b are provided in two pairs symmetrically under the paper support 10. The pair of guide members (hereinafter, referred to as 'first guide members') 40a are provided to be spaced apart from the central portion of the paper support 10 to some extent, and the other pair of guide members (hereinafter, referred to as 'first guide members') The two guide members 40b are provided symmetrically on the outer side of the paper support 10 than the first guide member 40a.

In addition, the connecting members 30a and 30b are provided with a pair (hereinafter, referred to as 'first and second connecting members', respectively), and both ends thereof are coupled to each of the guide members 40a and 40b. Accordingly, the first connecting member 30a is moved along the first guide member 40a, and the second connecting member 30b is moved along the second guide member 40b. Since the first guide member 40a and the second guide member 40b are coupled to and move above the connecting members 30a and 30b, the first guide member 40a and the second guide member 40b move up and down and left and right to each other to avoid interference of the connecting members 30a and 30b. Are installed at predetermined intervals.

Since the paper holders 20a and 20b are coupled to both ends of the connecting members 30a and 30b, two pairs (hereinafter, referred to as 'first and second paper holders') are provided. The first paper holder 20a is coupled to both ends of the first connecting member 30a, and the second paper holder 20b is coupled to both ends of the second connecting member 30b. The shape of the paper pusher 20a, 20b is preferably the front surface, that is, the surface in contact with the paper has a vertical surface with respect to the horizontal plane for the transfer of the paper, the upper portion of the vertical surface slightly protrudes so that the paper pusher 20a, Even if a large amount of paper is transferred during the paper conveying operation by 20b), the paper is prevented from moving upward. In addition, the rear surfaces of the paper holders 20a and 20b have a predetermined inclination angle with respect to the horizontal plane.

The paper holders 20a and 20b and the connection members 30a and 30b are coupled in a manner of inserting the outer circumferential portions of the guide members 40a and 40b. In addition, one end portion of the paper holder 20a, 20b coupled to the guide members 40a, 40b may have an extension 21 having a predetermined length, width, and thickness so as to interfere with the support member 60. Equipped. The extension portion 21 interferes with the support member 60 and allows the paper holders 20a and 20b to be supported by the support member.

The belt members 70a and 70b are accommodated in a receiving portion formed at the center of the connection members 30a and 30b to drive the connection members 30a and 30b according to the driving of the belt members 70a and 70b. . That is, the first belt member 70a is connected to the central portion of the first connection member 30a, and the second belt member 70b is connected to the second connection member 30b, thereby driving the motor 80. ) Is simultaneously transported by driving. Since the first belt member 70a and the second belt member 70b are fastened to the idle roller 90 which transmits the force of the drive motor 80, the first belt member 70a and the second belt member 70b are driven by the idle roller 90. The first belt member 70a and the second belt member 70b are driven at the same time. In other words, when the first connection member 30a driven by the drive of the first belt member 70a is advanced, the second connection member 30b driven by the drive of the second belt member 70b is Backwards. Accordingly, it can be expected by anyone that the first paper holder 20a and the second paper holder 20b are moved forward and backward.

3A and 3C are perspective views showing the coupling relationship between the paper pusher and the guide member, which are main parts of the high speed paper discharge device of the printing apparatus shown in Fig. 1, and Figs. 3A to 3C show the coupling relationship of the paper transfer module. The explanation is as follows.

Since the paper holders 20a and 20b are coupled to the guide members 40a and 40b together with the first spring member 50, the paper pushers 20a and 20b receive a force to rotate in one direction by the restoring force of the first spring member 50. In addition, grooves are formed at both ends of the connection members 30a and 30b to accommodate one end of the paper holders 20a and 20b. The grooves formed at the ends of the connecting members 30a and 30b are formed to have a predetermined length and a width larger than the widths of the ends of the paper pushers 20a and 20b, within the grooves of the connecting members 30a and 30b. The support member 60 is installed to reciprocate in the forward and backward directions of the connection members 30a and 30b. A second spring member 51 is provided on one surface of the support member 60 opposite to the inner wall surface of the groove of the connection members 30a and 30b. The second spring member 51 continuously applies a force pushing the support member 60 in a direction of any side wall in the groove of the connecting members 30a and 30b.

Fig. 4 is a top perspective view showing the operation of the high speed paper ejecting apparatus of the printing apparatus shown in Fig. 1, and with reference to Fig. 4, paper straws 20a and 20b which are main parts of the high speed paper ejecting apparatus of the printing apparatus according to the present invention. The rotating operation will be described.

The paper holders 20a and 20b have a tendency to be rotated in one direction by the first spring member 50, and are inclined to a certain degree with respect to the horizontal plane by the support member 60, preferably vertical. . In addition, the support member 60 is a groove in which the paper holders 20a and 20b are conveyed in the paper discharge direction for paper transfer and become a transfer path of the paper holders 20a and 20b to the paper support 10. Contact with the stopper 11 provided at the boundary portion of the stopper 11 and pushes in the opposite direction with respect to the stopper 11, that is, in the backward direction of the paper pushers 20a and 20b, thereby rotating the paper pushers 20a and 20b. Release the constraint on. That is, the paper holders 20a and 20b are rotated by the first spring member 50 because the extension part 21 that interferes with the support member 60 is released from the interference with the support member 60. It is in a state of being rotated substantially parallel to the paper support 10. In the above state, the paper holders 20a and 20b are returned to their original positions, and the other paper holders 20a and 20b are advanced to carry out paper transfer. At this time, the rotated paper pusher (20a, 20b) is returned to the original position while being located in the lower portion of the paper support (10).

FIG. 5 is an enlarged perspective view showing a part of a paper holder and a paper support which are main parts of the high speed paper discharge device of the printing apparatus shown in FIG. 1, and the return operation of the paper holders 20a and 20b will be described with reference to FIG. do.

As illustrated in FIG. 4, the paper holders 20a and 20b are returned to their original positions while being located at the bottom of the paper support 10, and as shown in FIG. 5, to the bottom of the paper support 10. In contact with the inclined guide surface 12 is formed to be inclined at an angle. At this time, when the paper holders 20a and 20b are continuously transferred, the paper holders 20a and 20b which are rotated about 90 degrees and parallel to the paper support 10 are along the upper surface of the inclined guide surface 12. When rotated again in the opposite direction and rotated to some extent, the support member 60, which is urged by the second spring member 51, returns to its original position and restrains the rotation of the paper holders 20a and 20b again. Done.

Thereafter, the sheet is conveyed by the repeated reciprocating conveyance operation of the sheet holders 20a and 20b.

FIG. 6 is a partially enlarged perspective view showing a periphery of a driving motor which is a main part of a high speed paper discharge device of the printing apparatus shown in FIG. 1. Referring to FIG. 6, the driving motor 80 is rotated according to the rotation of the driving motor 80. The gear connected to the rotation is rotated, the idle rollers 90 engaged with the gear is rotated in order to rotate the belt members (70a, 70b). The drive motor 80 is a bidirectional rotary motor, which is rotated in both directions to advance or reverse the paper holders 20a and 20b to drive the belt members 70a and 70b. The driving of the belt members 70a and 70b in more detail is as follows. By the one-way rotational drive of the drive motor 80, the second belt member 70b moves forward or backward, and thus the first belt member moves backward or forward. This can be easily expected since the idle rollers 90 which transmit the driving force of the driving motor 80 to the belt members 70a and 70b are engaged with each other.

The high speed paper discharge device of the printing apparatus of the present invention having the above configuration can transfer the paper discharged from the previous process to the later process more quickly, and therefore, there is an advantage of coping with the high speed of the copier according to the new technology development. .

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the field of the present invention that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the high-speed paper ejecting apparatus of the printing apparatus according to the present invention enables the conveying of paper almost continuously as two or more ejectors capable of retreating regardless of the presence or absence of paper on the paper support alternately move forward and backward. There is an effect that the copier can be speeded up by reducing the time delay when transferring the paper to the next step after the process.

Claims (6)

A paper support provided in the discharge unit of the printing apparatus, wherein at least two guide holes are formed along a conveying direction of the paper; At least a pair of guide members installed along the guide hole on a bottom surface of the paper support; A paper pusher coupled to the guide member so as to be movable and rotatable, and reciprocating along the guide member; Drive means for reciprocating conveying the paper sheet so that each paper sheet is conveyed in opposite directions along each guide hole; And Lifting means for raising each paper pusher to the upper part of the paper support so as to protrude through the guide hole when advancing in the paper transport direction, and lowering the paper support to the lower part of the paper support when retreating. High speed paper ejector of the printing machine comprising a. The method of claim 1, The lifting means, A plurality of ascending and descending holes formed in the front and rear ends of the guide hole to have a size through which the paper holder can pass; An inclined guide surface which is formed inside the rising hole and rotates the paper pusher retracted along the guide hole so as to rise to the upper portion of the paper support; And Spring for rotating the paper pusher forwarded through the downhole High speed paper ejector of the printing machine comprising a. The method of claim 1, The drive means, Both ends are respectively coupled to the other guide member, the end of which is connected to receive one end of the paper pusher and move with the paper pusher; A pair of belt members positioned below the paper support and coupled to the paper transport modules to reciprocally transport the paper transport modules; And A driving motor for driving the belt member through an idle roller positioned at the bottom of the paper support; High speed paper ejector of the printing machine comprising a. The method of claim 2, The front side of the paper pusher forms a vertical plane with respect to the horizontal plane, and the rear side of the paper pusher forms an inclined plane with respect to the horizontal plane. High speed paper exit of the printing press. The method according to claim 2 or 3, A projection protruding in the horizontal direction is formed in the front upper portion of the paper pusher to prevent the separation of the paper High speed paper exit of the printing press. The method of claim 1, It is provided in the vicinity of the front of the guide hole boundary formed in the paper support vertically with the paper support, and further provided with a stopper for limiting the movement of the support member to move forward with the advance of the paper pusher High speed paper exit of the printing press.

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